Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
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NATIONAL LIBRARY OF MEDICINE service for health professionals and consumers. It links extensive information from the National Institutes of Health and other reviewed sources of information on specific diseases and conditions.
Protective measures against unauthorized access to or interference with computer operating systems, telecommunications, or data structures, especially the modification, deletion, destruction, or release of data in computers. It includes methods of forestalling interference by computer viruses or so-called computer hackers aiming to compromise stored data.
A non-metal element that has the atomic symbol P, atomic number 15, and atomic weight 31. It is an essential element that takes part in a broad variety of biochemical reactions.
Substances that are energetically unstable and can produce a sudden expansion of the material, called an explosion, which is accompanied by heat, pressure and noise. Other things which have been described as explosive that are not included here are explosive action of laser heating, human performance, sudden epidemiological outbreaks, or fast cell growth.
Inorganic compounds that contain phosphorus as an integral part of the molecule.
The formation of crystalline substances from solutions or melts. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Phosphorus used in foods or obtained from food. This element is a major intracellular component which plays an important role in many biochemical pathways relating to normal physiological functions. High concentrations of dietary phosphorus can cause nephrocalcinosis which is associated with impaired kidney function. Low concentrations of dietary phosphorus cause an increase in calcitriol in the blood and osteoporosis.
The study of crystal structure using X-RAY DIFFRACTION techniques. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Pathological processes of the KIDNEY or its component tissues.
Chemical, spectroscopic, or microscopic detection of extremely small amounts of blood.
The interactions between physician and patient.
Tests used in the analysis of the hemic system.
A region, north-central Asia, largely in Russia. It extends from the Ural Mountains to the Pacific Ocean and from the Arctic Ocean to central Kazakhstan and the borders of China and Mongolia.
A plant genus of the family Plantaginaceae. Members contain linarin (also called acaciin).
An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.
A subclass of iridoid compounds that include a glycoside moiety, usually found at the C-1 position.
A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
Total mass of all the organisms of a given type and/or in a given area. (From Concise Dictionary of Biology, 1990) It includes the yield of vegetative mass produced from any given crop.
A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471).
The ability of a substance to be dissolved, i.e. to form a solution with another substance. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The study of chemical changes resulting from electrical action and electrical activity resulting from chemical changes.
The process by which ELECTRONS are transported from a reduced substrate to molecular OXYGEN. (From Bennington, Saunders Dictionary and Encyclopedia of Laboratory Medicine and Technology, 1984, p270)
Hydrogen-donating proteins that participates in a variety of biochemical reactions including ribonucleotide reduction and reduction of PEROXIREDOXINS. Thioredoxin is oxidized from a dithiol to a disulfide when acting as a reducing cofactor. The disulfide form is then reduced by NADPH in a reaction catalyzed by THIOREDOXIN REDUCTASE.
A United States organization of distinguished scientists and engineers established for the purpose of investigating and reporting upon any subject of art or science as requested by any department of government. The National Research Council organized by NAS serves as the principal operating agency to stimulate and support research.
Guidelines and objectives pertaining to food supply and nutrition including recommendations for healthy diet.
The time span between the beginning of physical activity by an individual and the termination because of exhaustion.
Inorganic salts of phosphoric acid.
The ability to carry out daily tasks and perform physical activities in a highly functional state, often as a result of physical conditioning.
The amounts of various substances in food needed by an organism to sustain healthy life.
Discussions, descriptions or catalogs of public displays or items representative of a given subject.
Acidic water usually pH 2.5 to 4.5, which poisons the ecosystem and adversely affects plants, fishes, and mammals. It is caused by industrial pollutants, mainly sulfur oxides and nitrogen oxides, emitted into the atmosphere and returning to earth in the form of acidic rain water.
Individuals enrolled in a school or formal educational program.
Individuals enrolled in a school of medicine or a formal educational program in medicine.

22-oxacalcitriol suppresses secondary hyperparathyroidism without inducing low bone turnover in dogs with renal failure. (1/3106)

BACKGROUND: Calcitriol therapy suppresses serum levels of parathyroid hormone (PTH) in patients with renal failure but has several drawbacks, including hypercalcemia and/or marked suppression of bone turnover, which may lead to adynamic bone disease. A new vitamin D analogue, 22-oxacalcitriol (OCT), has been shown to have promising characteristics. This study was undertaken to determine the effects of OCT on serum PTH levels and bone turnover in states of normal or impaired renal function. METHODS: Sixty dogs were either nephrectomized (Nx, N = 38) or sham-operated (Sham, N = 22). The animals received supplemental phosphate to enhance PTH secretion. Fourteen weeks after the start of phosphate supplementation, half of the Nx and Sham dogs received doses of OCT (three times per week); the other half were given vehicle for 60 weeks. Thereafter, the treatment modalities for a subset of animals were crossed over for an additional eight months. Biochemical and hormonal indices of calcium and bone metabolism were measured throughout the study, and bone biopsies were done at baseline, 60 weeks after OCT or vehicle treatment, and at the end of the crossover period. RESULTS: In Nx dogs, OCT significantly decreased serum PTH levels soon after the induction of renal insufficiency. In long-standing secondary hyperparathyroidism, OCT (0.03 microg/kg) stabilized serum PTH levels during the first months. Serum PTH levels rose thereafter, but the rise was less pronounced compared with baseline than the rise seen in Nx control. These effects were accompanied by episodes of hypercalcemia and hyperphosphatemia. In animals with normal renal function, OCT induced a transient decrease in serum PTH levels at a dose of 0.1 microg/kg, which was not sustained with lowering of the doses. In Nx dogs, OCT reversed abnormal bone formation, such as woven osteoid and fibrosis, but did not significantly alter the level of bone turnover. In addition, OCT improved mineralization lag time, (that is, the rate at which osteoid mineralizes) in both Nx and Sham dogs. CONCLUSIONS: These results indicate that even though OCT does not completely prevent the occurrence of hypercalcemia in experimental dogs with renal insufficiency, it may be of use in the management of secondary hyperparathyroidism because it does not induce low bone turnover and, therefore, does not increase the risk of adynamic bone disease.  (+info)

Identification of a novel group of bacteria in sludge from a deteriorated biological phosphorus removal reactor. (2/3106)

The microbial diversity of a deteriorated biological phosphorus removal reactor was investigated by methods not requiring direct cultivation. The reactor was fed with media containing acetate and high levels of phosphate (P/C weight ratio, 8:100) but failed to completely remove phosphate in the effluent and showed very limited biological phosphorus removal activity. Denaturing gradient gel electrophoresis (DGGE) of PCR-amplified 16S ribosomal DNA was used to investigate the bacterial diversity. Up to 11 DGGE bands representing at least 11 different sequence types were observed; DNA from the 6 most dominant of these bands was further isolated and sequenced. Comparative phylogenetic analysis of the partial 16S rRNA sequences suggested that one sequence type was affiliated with the alpha subclass of the Proteobacteria, one was associated with the Legionella group of the gamma subclass of the Proteobacteria, and the remaining four formed a novel group of the gamma subclass of the Proteobacteria with no close relationship to any previously described species. The novel group represented approximately 75% of the PCR-amplified DNA, based on the DGGE band intensities. Two oligonucleotide rRNA probes for this novel group were designed and used in a whole-cell hybridization analysis to investigate the abundance of this novel group in situ. The bacteria were coccoid and 3 to 4 microm in diameter and represented approximately 35% of the total population, suggesting a relatively close agreement with the results obtained by the PCR-based DGGE method. Further, based on electron microscopy and standard staining microscopic analysis, this novel group was able to accumulate granule inclusions, possibly consisting of polyhydroxyalkanoate, inside the cells.  (+info)

Combination of fluorescent in situ hybridization and microautoradiography-a new tool for structure-function analyses in microbial ecology. (3/3106)

A new microscopic method for simultaneously determining in situ the identities, activities, and specific substrate uptake profiles of individual bacterial cells within complex microbial communities was developed by combining fluorescent in situ hybridization (FISH) performed with rRNA-targeted oligonucleotide probes and microautoradiography. This method was evaluated by using defined artificial mixtures of Escherichia coli and Herpetosiphon aurantiacus under aerobic incubation conditions with added [3H]glucose. Subsequently, we were able to demonstrate the potential of this method by visualizing the uptake of organic and inorganic radiolabeled substrates ([14C]acetate, [14C]butyrate, [14C]bicarbonate, and 33Pi) in probe-defined populations from complex activated sludge microbial communities by using aerobic incubation conditions and anaerobic incubation conditions (with and without nitrate). For both defined cell mixtures and activated sludge, the method proved to be useful for simultaneous identification and analysis of the uptake of labeled substrates under the different experimental conditions used. Optimal results were obtained when fluorescently labeled oligonucleotides were applied prior to the microautoradiographic developing procedure. For single-cell resolution of FISH and microautoradiographic signals within activated sludge flocs, cryosectioned sample material was examined with a confocal laser scanning microscope. The combination of in situ rRNA hybridization techniques, cryosectioning, microautoradiography, and confocal laser scanning microscopy provides a unique opportunity for obtaining cultivation-independent insights into the structure and function of bacterial communities.  (+info)

Reduced cytosolic acidification during exercise suggests defective glycolytic activity in skeletal muscle of patients with Becker muscular dystrophy. An in vivo 31P magnetic resonance spectroscopy study. (4/3106)

Becker muscular dystrophy is an X-linked disorder due to mutations in the dystrophin gene, resulting in reduced size and/or content of dystrophin. The functional role of this subsarcolemma protein and the biochemical mechanisms leading to muscle necrosis in Becker muscular dystrophy are still unknown. In particular, the role of a bioenergetic deficit is still controversial. In this study, we used 31p magnetic resonance spectroscopy (31p-MRS) to investigate skeletal muscle mitochondrial and glycolytic ATP production in vivo in 14 Becker muscular dystrophy patients. Skeletal muscle glycogenolytic ATP production, measured during the first minute of exercise, was similar in patients and controls. On the other hand, during later phases of exercise, skeletal muscle in Becker muscular dystrophy patients was less acidic than in controls, the cytosolic pH at the end of exercise being significantly higher in Becker muscular dystrophy patients. The rate of proton efflux from muscle fibres of Becker muscular dystrophy patients was similar to that of controls, pointing to a deficit in glycolytic lactate production as a cause of higher end-exercise cytosolic pH in patients. The maximum rate of mitochondrial ATP production was similar in muscle of Becker muscular dystrophy patients and controls. The results of this in vivo 31P-MRS study are consistent with reduced glucose availability in dystrophin-deficient muscles.  (+info)

Myocardial creatine kinase kinetics in hearts with postinfarction left ventricular remodeling. (5/3106)

This study examined whether alterations in myocardial creatine kinase (CK) kinetics and high-energy phosphate (HEP) levels occur in postinfarction left ventricular remodeling (LVR). Myocardial HEP and CK kinetics were examined in 19 pigs 6 wk after myocardial infarction was produced by left circumflex coronary artery ligation, and the results were compared with those from 9 normal pigs. Blood flow (microspheres), oxygen consumption (MVO2), HEP levels [31P magnetic resonance spectroscopy (MRS)], and CK kinetics (31P MRS) were measured in myocardium remote from the infarct under basal conditions and during dobutamine infusion (20 micrograms. kg-1. min-1 iv). Six of the pigs with LVR had overt congestive heart failure (CHF) at the time of study. Under basal conditions, creatine phosphate (CrP)-to-ATP ratios were lower in all transmural layers of hearts with CHF and in the subendocardium of LVR hearts than in normal hearts (P < 0.05). Myocardial ATP (biopsy) was significantly decreased in hearts with CHF. The CK forward rate constant was lower (P < 0.05) in the CHF group (0.21 +/- 0.03 s-1) than in LVR (0.38 +/- 0.04 s-1) or normal groups (0.41 +/- 0.03 s-1); CK forward flux rates in CHF, LVR, and normal groups were 6.4 +/- 2.3, 14.3 +/- 2.1, and 20.3 +/- 2.4 micromol. g-1. s-1, respectively (P < 0.05, CHF vs. LVR and LVR vs. normal). Dobutamine caused doubling of the rate-pressure product in the LVR and normal groups, whereas CHF hearts failed to respond to dobutamine. CK flux rates did not change during dobutamine in any group. The ratios of CK flux to ATP synthesis (from MVO2) under baseline conditions were 10.9 +/- 1.2, 8. 03 +/- 0.9, and 3.86 +/- 0.5 for normal, LVR, and CHF hearts, respectively (each P < 0.05); during dobutamine, this ratio decreased to 3.73 +/- 0.5, 2.58 +/- 0.4, and 2.78 +/- 0.5, respectively (P = not significant among groups). These data demonstrate that CK flux rates are decreased in hearts with postinfarction LVR, but this change does not limit the response to dobutamine. In hearts with end-stage CHF, the changes in HEP and CK flux are more marked. These changes could contribute to the decreased responsiveness of these hearts to dobutamine.  (+info)

Effect of zinc on adenine nucleotide pools in relation to aflatoxin biosynthesis in Aspergillus parasiticus. (6/3106)

The adenylic acid systems of Aspergillus parasiticus were studied in zinc-replete and zinc-deficient media. The adenosine 5'-triphosphate levels of the fungus were high during exponential phase and low during stationary phase in zinc-replete cultures. On the other hand, the levels of adenosine 5'-diphosphate and adenosine 5'-monophosphate were low during exponential phase of growth and high during stationary phase. The adenosine 5'-triphosphate levels during exponential phase may indicate higher primary metabolic activity of the fungus. On the other hand, high adenosine 5'-monophosphate levels during stationary phase may inhibit lipid formation and may enhance aflatoxin levels. The inorganic phosphorus content was low in a zinc-replete medium throughout the growth period, thereby favoring aflatoxin biosynthesis. The energy charge during the exponential phase was high but low during the stationary phase. In general the energy charge values were lower because of high adenosine 5'-monophosphate content.  (+info)

Human muscle performance and PCr hydrolysis with varied inspired oxygen fractions: a 31P-MRS study. (7/3106)

The purpose of this study was to use 31P-magnetic resonance spectroscopy to examine the relationships among muscle PCr hydrolysis, intracellular H+ concentration accumulation, and muscle performance during incremental exercise during the inspiration of gas mixtures containing different fractions of inspired O2 (FIO2). We hypothesized that lower FIO2 would result in a greater disruption of intracellular homeostasis at submaximal workloads and thereby initiate an earlier onset of fatigue. Six subjects performed plantar flexion exercise on three separate occasions with the only variable altered for each exercise bout being the FIO2 (either 0.1, 0.21, or 1.00 O2 in balance N2). Work rate was increased (1-W increments starting at 0 W) every 2 min until exhaustion. Time to exhaustion (and thereby workload achieved) was significantly (P < 0.05) greater as FIO2 was increased. Muscle phosphocreatine (PCr) concentration, Pi concentration, and pH at exhaustion were not significantly different among the three FIO2 conditions. However, muscle PCr concentration and pH were significantly reduced at identical submaximal workloads (and thereby equivalent rates of respiration) above 4-5 W during the lowest FIO2 condition compared with the other two FIO2 conditions. These results demonstrate that exhaustion during all FIO2 occurred when a particular intracellular environment was achieved and suggest that during the lowest FIO2 condition, the greater PCr hydrolysis and intracellular acidosis at submaximal workloads may have contributed to the significantly earlier time to exhaustion.  (+info)

Plasma 25-hydroxyvitamin D in growing kittens is related to dietary intake of cholecalciferol. (8/3106)

Vitamin D synthesis by growing kittens exposed to ultraviolet light is ineffective. Concentration of 25-hydroxyvitamin D (25-OHD) in plasma (the most useful index of vitamin D status) was measured in six groups each of seven kittens given a purified diet (12 g calcium and 8 g phosphorus/kg, calculated metabolizable energy = 20 kJ/g) that contained either 0.0, 3.125, 6.25, 12.5, 18.75 or 25 microg of cholecalciferol/kg diet. All kittens received these diets from 9 to 22 wk of age, and the two groups given the 0.0 and 3.125 microg cholecalciferol/kg treatments continued to receive the diets until they were 34 wk old. Total and ionizable calcium and phosphorus in plasma were not affected by treatments. No adverse clinical changes were observed or found on radiographic examination of the kittens at 22 or 34 wk of age. Plasma concentration of 25-OHD was linearly related (r2 = 0.99, P < 0.001) to dietary intake of cholecalciferol. Plasma concentration of 25-OHD in kittens given the diet without added vitamin D was significantly less at 22 wk than at 9 wk, whereas kittens receiving the diet containing 3.125 microg cholecalciferol/kg had significantly higher 25-OHD concentrations at 22 and 34 wk than at 9 wk of age. Kittens given the 6.25 microg cholecalciferol/kg diet had plasma 25-OHD concentrations at 22 wk > 50 nmol/L which is considered replete for humans. An allowance of 6. 25 microg (250 IU) of cholecalciferol/kg diet is suggested to provide a margin of safety.  (+info)

This is a prospective, randomized, double-blind, placebo-controlled 8-week clinical trial to evaluate the efficacy of niacinamide versus placebo to reduce plasma phosphorus levels in peritoneal dialysis patients. Patients on a stable regimen of phosphate binders with plasma phosphorus levels , 4.9 mg/dL are eligible for enrollment and randomization. The study will span 8 weeks of active medication treatment. The primary end-point will be absolute change in plasma phosphorus levels. Sixteen patients (8 randomized to each treatment arm) are needed to detect a 1.5 mg/dL difference assuming a standard deviation of 1 and powered at 80% (alpha 0.05). Placebo will be packaged to resemble the study drug in all physical attributes. The starting dose of niacinamide will be 250 mg twice daily to be titrated to 500 mg twice daily at the end of week 2 with a final titration to 750 mg twice daily at the end of week 4. Secondary end-points will include absolute change in the calcium-phosphorus product, intact ...
This is a prospective, randomized, double-blind, placebo-controlled 8-week clinical trial to evaluate the efficacy of niacinamide versus placebo to reduce plasma phosphorus levels in peritoneal dialysis patients. Patients on a stable regimen of phosphate binders with plasma phosphorus levels , 4.9 mg/dL are eligible for enrollment and randomization. The study will span 8 weeks of active medication treatment. The primary end-point will be absolute change in plasma phosphorus levels. Sixteen patients (8 randomized to each treatment arm) are needed to detect a 1.5 mg/dL difference assuming a standard deviation of 1 and powered at 80% (alpha 0.05). Placebo will be packaged to resemble the study drug in all physical attributes. The starting dose of niacinamide will be 250 mg twice daily to be titrated to 500 mg twice daily at the end of week 2 with a final titration to 750 mg twice daily at the end of week 4. Secondary end-points will include absolute change in the calcium-phosphorus product, intact ...
Dietary sources of phosphorus include milk products, egg yolk, legumes, nuts, and whole grains. 1. Diseases such as Crohns disease and celiac disease impair the bodys ability to absorb nutrients such as phosphorus. Phosphorus is a mineral that is vitally important to the normal metabolism of numerous compounds and (in solution) an acid that, with sulfur, must be neutralized by the base-forming ions of sodium, potassium, calcium, and magnesium. [PHOSPHORUS DEFICIENCY IN HUMANS?]. Its deficiency though is uncommon as … Severe phosphorus deficiency can manifest as widespread organ dysfunction. However a deficiency of phosphorus is rare as it is present in most foods. Phosphorus deficiency may cause bone diseases such as rickets in children and osteomalacia in adults. Phosphorus deficiency (hypophosphatemia) is rare in the United States and is almost never the result of low dietary intakes [ 1 ]. Phosphate is what you get when you combine the mineral phosphorus with oxygen. [Article in Swedish] ...
Root gravitropism may be an important element of plant response to phosphorus availability because it determines root foraging in fertile topsoil horizons, and thereby phosphorus acquisition. In this study we seek to test this hypothesis in both two-dimensional paper growth pouch and three-dimensional solid media of sand and soil cultures. Five common bean ( Phaseolus vulgaris ) genotypes with contrasting adaptation to low phosphorus availability were evaluated in growth pouches over 6 days of growth, and in sand culture and soil culture over 4 weeks of growth. In all three media, phosphorus availability regulated the gravitropic response of basal roots in a genotype-dependent manner. In pouches, sand, and soil, the phosphorus-inefficient genotype DOR 364 had deeper roots with phosphorus stress, whereas the phosphorus-efficient genotype G19833 responded to phosphorus stress by producing shallower roots. Genotypes were most responsive to phosphorus stress in sand culture, where relativeroot ...
ABSTRACT: Effects of phosphorus content (510 to 987 ppm) on the gelatinization and retrogradation of 6 potato cultivars (Benimaru, Hokkaikogane, Irish Cobbler, Konafubuki, Sakurafubuki, and Touya) were studied. Pasting properties were analyzed by RVA, thermal properties by DSC, and mechanical properties of the starch gels by TA. Phosphorus was positively correlated with swelling power (r= 0.84) and negatively correlated with solubility (r= 0.83). Phosphorus content showed significant effect on certain pasting properties of potato starch such as peak viscosity, breakdown, and setback. Phosphorus content showed a significant positive correlation with peak viscosity (r= 0.95) and breakdown (r= 0.90). Increasing concentration of phosphorus tends to decrease the setback. Phosphorus content had no influence on thermal properties and mechanical properties of potato starch gel.. ...
Man-made mixing in shallow lakes will resuspend bottom sediments and increase phosphorus concentration in the water body. The increase in phosphorus content may affect the lake productivity. During the course of this study, a better understanding of the water-sediment-phosphorus relationships of some shallow lakes in Central Florida was attempted. Column studies and batch experiments were used to investigate the effect of mechanical mixing on the release of phosphorus from bottom sediments collected from Lake Claire and Jessup. The particle size distribution and sensity distribution of the bottom sediments were studied and the release of phosphorus from each fraction was measured. the results indicated that dissolved oxygen, turbidity and phosphorus content in the water column increased by mechanical agitation. The total phosphorus released from smaller size particles seemed to be higher than phosphorus released from larger particles. Also, the least and highest density sediment particles showed ...
Oolitic Hematite mines, iron ore with poor beneficiation ... Chinas steel industry. ... ore with high phosphorus content and weak magnetism, it. Mining in AFRICA towards 2020 - KPMG (e.g. in Gabon and Guinea) and the opinion of some iron ore ... high-quality phosphate rock on the continent. ... SOEs to mine minerals, export them without beneficiation, and then ... Chinese mining ...High Phosphorus Iron Ore Beneficiation In ChinaHigh phosphorus iron ore beneficiation in china industry. Iron ore provides the foundation for one of Australias major export industries. the large high-grade concentrations of iron ore currently mined throughout the world. next in importance and are prized for their low impurities such as phosphorus. Thermally assisted liberation of high.Beneficiation Of High Phosphorus From Iron OresHigh phosphorus iron ore beneficiation in china. High phosphorus iron ore beneficiation in china sgs - abrasion test - mining benification iron ore are rocks or minerals from which ...
It helps synthesize protein and, most importantly, helps form teeth and bones. If youre on a whole-foods, plant based diet like me, then you can most likely skip … and articles to help you organize and understand the foods you eat. ‎We have listed hundreds of low phosphorus foods specially for Kidney patients. Low Phosphorus Foods Features: • Low Phosphorus Foods - 1950 foods • Medium Phosphorus Foods - 1912 foods • High Pho… Examples include shortbread cookies, angel food cake, lemon cake, yellow cake, sugar cookies and vanilla wafers. Cream of wheat, cream of rice and grits are also low in phosphorus. Browse low phosphorus recipes. High sodium intake further impairs kidney function and can lead to dehydration. Phosphorus additives in food are absorbed nearly 100% into your blood, whereas the phosphorus in more natural foods like meats, beans, and nuts are only absorbed 20-50%. #3: Grapes. Beverages can be a surprising source of phosphorus in … Nutrition Facts for Yellow Cornmeal ...
BACKGROUND: In kidney transplant recipients, persistent hyperparathyroidism leads to hypercalcemia and increased urinary phosphorus excretion. The calcimimetic drug cinacalcet effectively decreases parathyroid hormone (PTH) levels and corrects hypercalcemia in these patients. The purpose of the present study is to examine the effect of cinacalcet treatment on determinants of renal phosphorus reabsorption under steady-state conditions. STUDY DESIGN: Open-label prospective uncontrolled trial. SETTING & PARTICIPANTS: 10 stable kidney transplant recipients with persistent hyperparathyroidism. INTERVENTION: Cinacalcet, 30 and 60 mg/d, for 2 weeks. OUTCOMES & MEASURES: Changes in urinary phosphorus excretion in timed urine samples, intact and carboxy-terminal (C-term) fibroblast growth factor 23 (FGF-23), intact PTH, venous pH, and bicarbonate values at defined intervals over 24 hours. RESULTS: Cinacalcet decreased renal phosphorus excretion in the first 8 hours by 30% to 40%, but not from 8 to 24 ...
TY - JOUR. T1 - Phosphorus retention in corn, spray dried plasma protein, soybean meal, meat and bone meal, and canola meal using a precision-fed rooster assay. AU - Munoz, J. A.. AU - Hanna, C. D.. AU - Utterback, P. L.. AU - Parsons, C. M.. PY - 2018/1/1. Y1 - 2018/1/1. N2 - Four experiments were conducted to evaluate the precision-fed rooster assay for determining excreta phosphorus retention values for 5 feed ingredients in which roosters were precision-fed the ingredients and excreta were collected quantitatively for 48 h. The first rooster assay determined the effects of increasing P intakes on excreta P retention values for corn. This assay involved feeding either 20 g of corn or 20 g of corn supplemented with increasing amounts of KH 2 PO 4 to provide total P intakes of 51 to 351 mg and non-phytate P intakes of 16 to 316 mg. The excreta P retention value for corn fed alone was 75% but decreased greatly when non-phytate P intakes were 76 mg or higher for the corn diets containing added KH ...
Phosphorus deficiency limits plant growth and development. To better understand the mechanisms behind how maize responds to phosphate stress, we compared the proteome analysis results of two groups of maize leaves that were treated separately with 1,000 µM (control, +P) and 5 µM of KH2PO4 (intervention group, −P) for 25 days. In total, 1,342 protein spots were detected on 2-DE maps and 15.43% had changed (P|0.05; ≥1.5-fold) significantly in quantity between the +P and −P groups. These proteins are involved in several major metabolic pathways, including photosynthesis, carbohydrate metabolism, energy metabolism, secondary metabolism, signal transduction, protein synthesis, cell rescue and cell defense and virulence. The results showed that the reduction in photosynthesis under low phosphorus treatment was due to the down-regulation of the proteins involved in CO2 enrichment, the Calvin cycle and the electron transport system. Electron transport and photosynthesis restrictions resulted in a large
Looking for inorganic phosphorus? Find out information about inorganic phosphorus. nonmetallic chemical element; symbol P; at. no. 15; at. wt. 30.97376; m.p. 44.1°C;; b.p. about 280°C;; sp. gr. 1.82 at 20°C;; valence −3, +3, or... Explanation of inorganic phosphorus
Article Minimising the risk on phosphorus limitation; an optimised coagulant dosage system. In the near future the WWTP Horstermeer will be confronted with more stringent requirements. Important factor in this respect is the European Water Framework ...
Phosphorus balance. A positive phosphorus balance implies that phosphorus soil test levels will increase in the field over the course of the planning window. A rough rule of thumb is that soil test phosphorus will increase one pound per acre for every 10 pounds of phosphate applied per acre. This is a conservative estimate; on some fields 10 pounds of phosphate per acre will result in greater increases in soil test phosphorus.. Caution must be used in interpreting nutrient balances. In some cases the nutrient balance will be positive even when using a phosphorus-based application strategy. For example, a field may receive a phosphorus-based application rate to provide three years of phosphorus. If the application is applied in year one of the plan and then again in year four of a five-year plan the phosphorus balance will be positive because the removal window for the second application extends beyond the planning window of the five-year plan.. 3. Phosphorus balance for a five-year plan should ...
DAF staff have determined the implications of phosphorus supplementation on the productivity and profitability of business performance in central Queensland
TY - JOUR. T1 - Joint Effect of Hypertension and Elevated Serum Phosphorus on the Risk of Mortality in National Health and Nutrition Examination Survey-III. AU - Vart, Priya. AU - Nigatu, Yeshambel T.. AU - Jaglan, Ajay. AU - van Zon, Sander K. R.. AU - Shafique, Kashif. N1 - © 2015 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley Blackwell.. PY - 2015/5. Y1 - 2015/5. N2 - Background-Elevated serum phosphorus might aggravate the effect of hypertension on mortality. The objective of this study was to examine the joint effect of hypertension and serum phosphorus on the risk of mortality.Methods and Results-A large prospective (n=15 833), population-based cohort of participants from the National Health and Nutritional Examination Survey III was examined to test potential synergism between hypertension, elevated serum phosphorus, and the risk of mortality. Interaction on additive scale and multiplicative scale was estimated. After a median follow-up of 14.3 years, ...
Hidden phosphorus is found in many foods,which makes it difficult to maintain a low phosphorus level when following chronic kidney disease diets. A renal diet can be followed better when chronic kidney disease patients know which foods have hidden phosphorus.
AUTHOR : -. CALL NO : S587.5.P56 S683 2017. IMPRINT : Boca Raton, Fla. : CRC Press, c2017. Phosphorus is an essential plant nutrient, but global population growth has dramatically reduced the availability of phosphorus fertilizer resources. Despite this scarcity, there remain numerous problems associated with the excessive and inappropriate use of phosphorus leading to non-point source pollution and eutrophication of natural waters. Identifying appropriate systems for managing soil phosphorus and reducing the risks of eutrophication are needed to minimize the environmental risks. This book focuses on the availability and recycling of phosphorus; regulatory and policy issues of sustainable phosphorus use; and water quality management in agroecosystems pertaining to phosphorus. Sections are dedicated to global phosphorus reserves; cycling and pathways of phosphorus; phosphorus in agriculture; human dimensions and policy intervention; and research and development priorities.. Features. ...
Lotic systems act as nutrient buffers to receiving lentic systems. As streams transport allochthonous phosphorus through a watershed, the loads are modified in quantity and quality through biotic and abiotic mechanisms. Lotic systems are frequently dominated by periphyton, the attached benthic community consisting mainly of algae and bacteria. This community exhibits the ability to buffer phosphorus loads to receiving waters through several mechanisms including: biotic uptake, chemical precipitation, and mechanical filtration. Stream sediments, including clays, influence dissolved phosphorus concentrations primarily through equilibrium-driven sorption/desorption reactions. Additionally, suspended clays in aquatic environments are known to: modify food webs, influence species composition, and affect biotic integrity by altering the physical and chemical conditions. Given the influence that suspended clays exert upon aquatic systems, it was hypothesized that suspended clays would modify, either ...
Phosphorus even works in our bodies to efficiently use carbohydrates and fat. Phosphorus is a dietary Gal Friday...wearing a dozen hats and ensuring that essential functions go off without a hitch.. Phosphorus is the second most abundant mineral in our bodies (calcium is the first). Luckily, phosphorus is found naturally in many food sources. Its prevalence is highest in animal products (fish, chicken and beef), but it can also be found in milk products, peanuts, tofu and soybeans. The recommended daily phosphorus intake for a healthy adult is about 700mg/day, and if youre meeting your daily protein requirements, chances are youre stocked up on phosphorus too.. Perhaps counterintuitively, the concern we need to have with phosphorus is that we may on occasion get too much. While the RDA is 700mg, the upper limit of daily phosphorus is 4,000mg/day. Thats a huge disparity, and it would be tough to eat that much protein in a single day to account for 4,000mg of phosphorus. The way you quadruple ...
ADDITIONAL PUBLICATIONS of Earl W. Sutherland, Jr. ____________________________________________________________________________. Sutherland EW, Pasternak T, Cori CF. Mechanism of the phosphoglyceric mutase reaction. Journal of Biological Chemistry 1949 181(1):153-9 Nov.. Sutherland EW. The effect of the hyperglycemic factor and epinephrine on enzyme systems of liver and muscle. Annals of the New York Academy of Sciences 1951 54(4):693-706 Dec.. Sutherland EW. The effect of the hyperglycemic factor and epinephrine on liver and muscle phosphorylase. In: Symposium on Phosphorus Metabolism. Phosphorus metabolism, v. 1. McElroy WD, Glass G., eds. Baltimore, Johns Hopkins Press, 1951. pp. 53-66. Sutherland EW. The effect of epinephrine and the hyperglycemic factor on liver and muscle metabolism in vitro. In: Symposium on Phosphorus Metabolism. Phosphorus metabolism, v. 2. McElroy WD, Glass G., eds. Baltimore, Johns Hopkins Press, 1952. pp. 577-596. Sutherland EW. Polysaccharide phosphorylase, liver. ...
B. Rajagopalan, W.J. McKenna, M.J. Blackledge, G.K. Radda; Measurement of Phosphorus Metabolism in Hypertrophic Cardiomyopathy by 31P Magnetic Resonance Spectroscopy. Clin Sci (Lond) 1 January 1988; 74 (s18): 9P. doi: Download citation file:. ...
A pilot-scale, pre-anoxic-anaerobic oxidation ditch was used in this study to treat municipal wastewater with limited carbon source. A novel return activated sludge (RAS) pre-concentration tank was adopted for improving the phosphorus removal efficiency and the effects of RAS pre-concentration ratio were studied. Under the optimal operational condition, the suspended total phosphorus (STP) and the total phosphorus (TP) removal efficiencies were around 58.9% and 63.9% respectively and the effluent PO3-4 -P was lower than 0.8 mg•L−1. The reason is that with the optimal RAS pre-concentration ratio, nitrate is completely removed with endogenous carbon source and the secondary phosphorus release is strictly restrained in the pre-anoxic tank. Therefore, the anaerobic phosphorus release and the carbon source uptake by phosphorus accumulation organisms (PAOs) in the sludge, which are extremely important to the phosphorus removal process, can be fully satisfied. Furthermore, the oxidation-reduction ...
This study investigated the characteristics of denitrifying phosphorus removal bacteria by using three different types of electron acceptors as well as the positive role of nitrite in phosphorus removal process. Denitrifying phosphorous removal bacteria was enriched under anaerobic-anoxic (A/A) condition. To understand A/A sludge better, sludge from two other sources were also studied. These include sludges obtained from a lab-scale anaerobic-anoxic-aerobic (A/A/O) system and a local sewage treatment plant. Three types of possible electron acceptors (oxygen, nitrate and nitrite) were examined for their roles in phosphorus uptake. The results obtained indicated that oxygen, nitrate and nitrite were able to act as electron acceptors successfully. This observation suggested that in addition to the two well-accepted groups of phosphorus removal bacteria (one can only utilize oxygen to take up phosphorus, PO, while the other can use both oxygen and nitrate, PON), a new group of phosphorus removal ...
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TY - CONF. T1 - Sediment internal phosphorus loading before and after excavation of a shallow lake. AU - Kiani, Mina. AU - Tammeorg, Olga. AU - Tammeorg, Priit. AU - Niemistö, Juha Petteri. AU - Horppila, Jukka Antero. AU - Simojoki, Asko Juhani. PY - 2018/6/4. Y1 - 2018/6/4. N2 - Mankind is taking advantage of numerous services by small shallow lakes such as drinking water supply, irrigation, transportation, recreational function and aesthetic values; however, eutrophication drives many of them to a deteriorated state. Internal loading of phosphorus (P) may often be the main reason why shallow lakes are unresponsive to watershed nutrient management programs. In this case, removal of sediments enriched in P is a possible method to reduce the internal P loading.In our study, we examined the changes in sediment P mobility and internal phosphorus loading after excavation of a 1-ha highly eutrophicated lake in Viljandi, Estonia. For that, we measured redox potential of the surficial sediments, ...
TY - JOUR. T1 - Effect of oral ferric citrate on serum phosphorus in hemodialysis patients. T2 - multicenter, randomized, double-blind, placebo-controlled study. AU - Lee, Chien Te. AU - Wu, I. Wen. AU - Chiang, Shou Shan. AU - Peng, Yu Sen. AU - Shu, Kuo Hsiung. AU - Wu, Ming Ju. AU - Wu, Mai Szu. PY - 2014. Y1 - 2014. N2 - Background: Hyperphosphatemia is a common complication in dialysis patients that can be treated by oral phosphate binders. We investigated the efficacy and safety of oral ferric citrate as a phosphate binder for Taiwanese patients with end stage renal disease and with hyperphosphatemia who were undergoing hemodialysis.Methods: This was a prospective, double-blind, placebo-controlled, randomized trial carried out in 5 hospitals in Taiwan. Ferric citrate (4 or 6 g/day) or placebo was administered for 56 days. Serum calcium, phosphorous levels, calcium × phosphorus product, serum ferritin level, transferrin saturation, and adverse events were recorded.Results: A total of 166 ...
Phosphorus is a mineral that is found in many of our foods. For us humans, it is quite an important little mineral. It is one of the building blocks of our cells. In a complex mixture of phosphorus, oxygen, and hydrogen, it makes up half of the outer wall of the cell. It is also a vital part of the inside of the cell, allowing it to perform a variety of different functions. In the nucleus, both RNA and DNA are made with phosphorus, which holds DNA together like glue.. Phosphorus is also crucial to bone health, with 80 to 85% of our phosphorus being stored in our bones. Without phosphorus, our bones would be much weaker. Dietary phosphorus can influence bone production by signaling bone growth. This process is always working to make sure our bones stay healthy. Another role phosphorus plays in bone health is the effect phosphorus has on a hormone called PTH, which controls our bodys bone and calcium metabolism by increasing the bodys absorption of calcium and decreasing its loss.. Phosphorus is ...
Article Modifying broiler diets with phytase and vitamin d metabolite (25-OH D3): impact on phosphorus in litter, amended soils, and runoff. Received for publication April 14, 2009. Adding phytase and 25- hydroxycholecalciferol (25-OH D3) to broiler ...
A ban on phosphorus on our lawns is headed to the governor's desk. Legislation which would ban phosphorus as an ingredient in lawn fertilizers sold in Wisconsin is ready for Governor Jim Doyle's signature, with passage in the state Senate.. If . . . you absolutely need to have that nutrient, because of a phosphorus deficiency, or because you're starting a new lawn, you can in fact use a fertilizer containing phosphorus, said Monona Democrat, Senator Mark Miller . For everybody else, there's no need for phosphorus. The measure, aimed at protecting Wisconsin lakes from algae blooms, was supported by numerous environmental and conservation groups. Similar measures have been passed locally in communities including Madison and Marshfield, and several other states already have phosphorus fertilizer bans in place.. Phosphorus is one of many things that we need to deal, in Wisconsin's surface waters, said Elkhorn Republican, state Senator Neal Kedzie . As we become more ...
Phosphorus is required for both soft tissue and bone growth. Clinical signs of a deficiency include slowed growth for abnormal substance and unthrifty appearance. The calcium/phosphorus ratio should not be less than 1.2:1 for does and 2:1 for males. Grazing goats rarely develop a phosphorus deficiency due to their browsing phosphorus rich plants. Appropriate attention to calcium/phosphorus ratio is important to avoid promotion of urolithiasis. Additional information about phosphorus can be found at (Phosphorus).. ...
A variety of microorganisms like phosphorus solubilizing bacteria, phosphorus solubilizing fungi and arbuscular mycorrhiza are known to positively influence phosphorus uptake by plants. Such group of microorganism can become a part of integrated nutrient management systems for sustainable crop production.
The increase in soil test phosphorus differs for different soils; the same soil test phosphorus on different soils may support different concentrations of phosphorus in runoff. Soils with higher soil test phosphorus support higher concentrations of phosphorus in runoff. Soil-specific data are lacking for most Missouri soils.. The environmental soil test phosphorus, like agronomic soil test phosphorus, is an index procedure that extracts only a portion of the phosphorus in soil. The extraction procedure and the depth of soil sampling will dramatically effect the soil test value reported on a given soil. Caution should be used when quoting critical soil test levels; always note the extraction method and depth of soil sampling. Environmental soil test values from a Bray-I test on a 6-inch sample and a water extract on a 1-inch sample are not comparable.. Extracts being considered for environmental soil test phosphorus include water, Bray-I P, Mehlich-III P and iron-oxide strip P. Depth of soil ...
However, phosphorus has also received significant attention because of the potential for accelerated eutrophication in water bodies receiving excess P. Phosphorus is an essential nutrient for crops. A critical component of crop production is managing phosphorus for optimum economic benefit. However, if phosphorus is allowed to move off the land and get into water, it can be a pollution problem. Unlike nitrogen, excess phosphorus is not toxic but can result in eutrophication of water bodies. Eutrophication is the increased growth of undesirable algae and other aquatic plants, which limits the use of the water for drinking, fisheries, recreation, and industrial use. Historically, a major source of phosphorus in water was wastewater treatment plants. But as the amount of phosphorus getting into water from this source has been reduced, agricultural sources of phosphorus have gotten more attention. Manure in particular has been identified as a source of phosphorus to the environment. Agriculture has ...
Because the damaged kidneys are unable to remove waste products and balance electrolytes in body, it is likely for ESRD patients to suffer from high phosphorus level. What are the complications related to high phosphorus?
This study investigated the effect of maturity class on phosphorus (P) balance in a soyabean-maize rotation in the West African moist savanna. Four soyabean varieties of different maturity classes were grown with or without P fertilizer followed by a maize crop. Soyabean stover P content averaged 1.77 kg ha(-1) compared with 5.13 kg ha(-1) in the grain. The late soyabean variety TGx1670-1F accumulated a significantly higher P in the grain (6.56 kg ha(-1)), and stover (2.57 kg ha(-1)) than the others. While P harvest index averaged 79%, P application increased grain P by 63-81% and stover P by 100% or more. When either soyabean grain or grain+stover was exported, P balance was negative and was not statistically different for varieties when no P was applied. At 30 or 60 kg P ha(-1), P balance was negative but significantly lower in TGx1670-1F compared with other varieties. Increasing Prate applied to soyabean significantly (p < 0.01) increased maize grain P by 35-66% in the second year. When P was ...
TY - JOUR. T1 - New Framework for Automated Article Selection Applied to a Literature Review of Enhanced Biological Phosphorus Removal. AU - Nguyen Quang, Minh. AU - Rogers, Timothy. AU - Hofman, Johannes. AU - Lanham, Ana. PY - 2019/5/9. Y1 - 2019/5/9. N2 - Enhanced Biological Phosphorus Removal (EBPR) is a technology widely used in wastewater treatment to remove phosphorus (P) and prevent eutrophication. Establishing its operating efficiency and stability is an active research field that has generated almost 3000 publications in the last 40 years. Due to its size, including over 119 review articles, it is an example of a field where it becomes increasingly difficult to manually recognize its key research contributions, especially for non-experts or newcomers. Therefore, this work included two distinct but complementary objectives. First, to assemble for the first time a collection of bibliometric techniques into a framework for automating the article selection process when preparing a ...
Phosphorus is an essential nutrient that allows life in water to flourish, but changes in phosphorus supplies are not well understood in remote watersheds. In mountain environments, remote watersheds contain critical high-quality water supplies and unique ecosystems, but excess phosphorus can diminish water quality by producing unfavorable aquatic species. Therefore, observed trends of increasing phosphorus concentrations in remote lakes and rivers in the US over the last two decades are a significant concern. Using the Uinta Mountains as a case study, we evaluated three different direct and indirect pathways for phosphorus increases in remote mountain watersheds that may explain observed increases over the last two decades. These mechanisms include atmospheric deposition of dust enriched in phosphorus and changing soil conditions (i.e., increasing soil temperatures and increasing soil pH), leading to greater land exports of phosphorus from runoff or erosion. In the Uinta Mountains, dust had
Phosphorus. Red phosphorus. White phosphorus. Violet phosphorus. Phosphorus powder. Ampouled phosphorus. Black phosphorus. Amorphous phosphorus. Phosphorus crystals
Keywords: Phosphorus, livestock production, phosphorus sources, phosphorus efficiency, availability, phytase.. Efficient production of livestock and poultry (and fish and pets) and the maintaining the good health of animals requires essential nutrients provided in appropriate amounts that are biologically utilisable. Dietary standards or allowances and thus phosphorus requirements for most animals have been established but are not always well-defined. In order to meet the requirements of the animal and without jeopardising animal health and production the phosphorus recommendations for most animals often include a safety margin and thus unneccessarily high rates of phosphorus are often recommended. Further, phosphorus sources, whether organic or inorganic, frequently have a wide range of bioavailability with those of lowest bioavailability being only utilised to some 50%. As a consequence, in many areas of the world with high livestock and poultry densities, the contribution of animal production ...
What is the issue? When babies are born too early (preterm), they have very low stores of the minerals calcium and phosphorus needed for healthy bones and growth. Human milk may not contain sufficient minerals for these babies.. Why is this important? Calcium and phosphorus are essential for healthy bones and normal growth and development. When a baby is born preterm and does not receive enough calcium and phosphorus, bone fractures and poor growth can occur.. What evidence did we find? We searched for evidence in April 2016 and identified one randomised controlled trial including 40 babies. Investigators reported a small decrease in the concentration of alkaline phosphatase (an enzyme involved in bone growth) among infants who had received calcium/phosphorus supplementation. We found no difference in growth between infants who had been given human milk supplemented with extra calcium and phosphorus and infants who had received no supplementation. One small trial provided the evidence, and we ...
Phosphorus content must be kept as low as possible because of its detrimental effect on catalytic converters. Phosphorus coats the catalyst in the converter and renders it ineffective in treating the exhaust. Phosphorus content is measured by Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) in accordance with ASTM D4951.. ASTM D6751 Requirement: a maximum phosphorus content of 0.001% mass (10mg/kg).. ...
Acid-grade and ceramic-grade fluorspar - Determination of total phosphorus content - Reduced-molybdophosphate spectrometric method
This experiment studied the effect of four calcium (3.0, 3.5, 4.0, and 4.5%) and four available phosphorus levels (0.25, 0.30, 0.35, and 0.40%) in the diet of semi-heavy commercial layers after molting. Hisex Brown® layers between 90 and 108 weeks of age were distributed in a completely randomized experimental design with a 4x4 factorial arrangement with 16 treatments of five replicates of eight birds each. mortality, egg production, feed intake, egg mass, average egg weight, calcium and phosphorus intake, feed conversion ratio (per dozen eggs and per kg eggs), eggshell percentage and thickness, eggshell strength, eggshell weight per surface area (ESWSA), yolk percentage and color, albumen percentage, albumen and yolk heights, and blood and excreta calcium and phosphorus concentrations. There was no interaction (P,0.05) between dietary Ca and avP for any of the studied parameters. There were linear increases in Ca intake (P,0.01), eggshell percentage (P,0.05); ESWSA (P,0.05); yolk color ...
TY - JOUR. T1 - The calcium/phosphorus homeostasis in chronic kidney disease: From clinical epidemiology to pathophysiology. AU - Pires, A.. AU - Sobrinho, L.. AU - Ferreira, H.G.. N1 - Export Date: 19 October 2017 CODEN: AMPOD Correspondence Address: Pires, A.; Serviço de Nefrologia, Hospital Fernando da FonsecaPortugal; email: [email protected] References: Pires, A., Adragao, T., Pais, M.J., Vinhas, J., Ferreira, H.G., Inferring disease mechanisms from epidemiological data in chronic kidney disease: Calcium and phosphorus metabolism (2009) Nephron Clin Pract, 112, pp. c137-c147; Manjunath, G., Sarnak, M.J., Levey, A.S., Prediction equations to estimate glomerular filtration rate: An update (2001) Curr Opin Nephrol Hypertens, 10, pp. 785-792; Cannata-Andía, J.B., Martin, K.J., The challenge of controlling phosphorus in chronic kidney disease (2016) Nephrol Dial Transplant, 31, pp. 541-547; Ben-Dov, I.Z., Galitzer, H., Lavi-Moshayoff, V., Goetz, R., Kuro, M., Mohammadi, M., The ...
A real steelmaking process involves many complex physical and chemical coupled phenomena such as oxidation, decarburization, dephosphorization, and slag formation.. Phosphorus is an element of representative impurities that should be kept as low as possible in conventional steel grades. Low phosphorus content steels are essential for steel applications where high ductility is required, such as thin sheets, deep drawn structures, pipelines, and automobile exteriors. Phosphorus ability to strengthen and embrittle ferrite imposes restrictions on the maximum phosphorus content for the aforementioned applications. The main source of phosphorus in steel is from the raw materials; thus, raw material selection is a way to maintain the phosphorus content within the desirable range.. In (BOF) oxygen steelmaking it is difficult to predict the distribution of phosphorus between slag and metal by direct application of models (listed in Table 1), even though a pseudo-steady state is usually attained between ...
Alum sludge from a Tampa water treatment plant was found to significantly reduce phosphorus release from anaerobic bottom sediments. The kinetics of phosphorus uptake by the sludge was evaluated in batch reactors. Further, the impact of the sludge on benthic organisms was determined in aquarium systems. Aquariums were set up with sediments and organisms from various lake habitats. Organisms were allowed to establish themselves and then test aquaria were dosed with alum sludge to cover the sediments. Benthic survival and heavy metal uptake were evaluated. Favorable phosphorus uptake was demonstrated in the batch reactors. The uptake kinetics were found to closely follow both Freundlich and Langmuir isotherms over a wide range of sludge dose and phosphorus concentrations. Benthic organisms typical of polluted environments were not adversely affected by the sludge additions. However, oligochaetes exposed to the sludge had elevated metal concentrations. Clean water organisms were somewhat less
The best low phosphorus cat food options include Fussie Cat premium chicken, Hills Science Diet Senior, Purina Pro Plan Veterinary Diets...
This study vitalized the uncertainty and fuzzy rules consideration in the estimation of phosphorus loadings and eutrophication status of the hydrologic system namely detention pond using Fuzzy Logic (MATLAB). These methods were chosen to cater for the uncertainty of loading factors such as sediment and phosphorus inflow, inflowing discharge and pond storage volume. The average of phosphorus concentrations obtained from site investigation was 0.178 mg/L, hydraulic residence time was 1.77 year and the average annual hydraulic loadings was 694.70 m/yr, obtained based on the 12 years period (2000-2012). The results showed that the maximum and minimum of phosphorus loadings was 2.00 x 10-3 ton/year and 5.00 x 10-3 ton/year. Phosphorus loadings obtained from MATLAB fuzzy logic was 3.9 x 10-3 ton/year. The eutrophication status of the detention pond was investigated using Fuzzy Logic Approach, incorporating various fuzzy rules (MATLAB). This evaluation required the twinning usage of Vollenweider P-Loadings
Phosphorus trichloride. Of all the phosphorus halides formed, most common are phosphorus pentachloride, PCl 5 and phosphorus trichloride, PCl 3. PCl 5 finds use as a chlorinating reagent. It is also used as a chlorinating agent in organic syntheses and as… Phosphorus trichloride is a colorless or faint yellow fuming liquid, which readily hydrolyzes in moist air and water releasing a mist of hydrogen chloride, giving the compound a strong HCl odor. Phosphorus trichloride readily hydrolyzes in water to give hydrogen chloride and phosphorus acid: . PCl₃ . It has a trigonal pyramidal shape. This structural formula was created with ChemDraw. Phosphorus trichloride is a phosphorus halide with formula Cl3P. It has a trigonal pyramidal geometry and its chemical structure could be given as below. The formation of phosphorus pentachloride is prevented by the presence of a small excess of phosphorus.The heat of reaction, ca. Chemical Name: Phosphorus trichloride Formula: PCl3 CAS Number: 7719-12-2 ...
ABOLFAZLI, F; FORGHANI, A y NOROUZI, M. Effects of phosphorus and organic fertilizers on phosphorus fractions in submerged soil. J. Soil Sci. Plant Nutr. [online]. 2012, vol.12, n.2, pp.349-362. ISSN 0718-9516. This study was conducted in order to evaluate effects of phosphorous fertilizer (PF)s from sources of triple superphosphate (TSP) and di-ammonium phosphate (DAP) and organic fertilizer (OF)s from sources of cow dung manure (CDM) and municipal solid waste compost (MSWC) on phosphorous (P) fractions include aluminium-P (Al-P), iron-P (Fe-P), Reductant soluble-P (RS-P), calcium-P (Ca-P) and avail-able-P (Olsen-P) fractions under rice cultivation condition. The trials were carried out in calcareous and acidic soils. PFs were added at three levels (10, 20 and 30 mg kg-1) and OFs was applied at the rate of 10 t.ha-1. Results of this study showed that Ca-P was the predominant form of P in calcareous soil while Fe-P and Al-P were predominate in ...
The element phosphorus is used to make matches. Molecular phosphorus has two common forms. There is white phosphorus which is dangerously combustible and is used to make fireworks and weapons. The more stable red phosphorus is used on the side of any box of safety matches. When you strike the match against the red phosphorus, a small amount of it is changed to white phosphorus to ignite the match. But phosphorus has more important uses than starting fires. Life needs phosphorus. The average human body contains about 26.5 ounces (750 grams) of phosphorus. Most of it is in our bones.. Phosphate is a compound of phosphorus and oxygen. It combines with sugars in living tissue to form the backbone of DNA, which is the blueprint for life found in every living cell. Phosphate is also part of a complex organic chemical called adenosine triphosphate (ATP) found in every living organism. ATP releases energy so that cells can function. Life needs phosphorus and could not exist without it in an abundant ...
Total nitrogen and available phosphorus concentration of soils in three secondary forest fields aged 1, 5 and 10 years of age regenerating from degraded abandoned rubber plantation (Hevea brasiliensis) and a mature forest in the west African Rainforest belt in southern Nigeria were investigated in order to determine the trend of change in the properties of soil in secondary forest during the course of forest restoration from degraded deserted rubber plantation (Hevea brasiliensis). There was a continuous increase in the concentration of total nitrogen in the soil (both topsoil and subsoil). The concentrations of total nitrogen and available phosphorus in the topsoil are higher than the subsoil. The concentration of available phosphorus during the first five years of secondary forest regeneration increased, after which their values declined by the tenth year in both the topsoil and the subsoil. Should this trend of decline in the concentration of phosphorus continue phosphorus may become a ...
Phosphorus trichloride is a colourless transparent motile liquid. 10025-87-3 RTECS No. Phosphorus Chloride or PCl3 is important chemical that is used in many chemical industries as a feedstock to produce phosphorus pentachloride and other important chemicals that are used in various end user â ¦ 0 - 100 (3) 101 - 200 (11) 201 - 300 (8) 301 - 400 (1) 701 - 800 (1) Boiling Point (°C) 0 - 100 (4) 101 - 200 (8) 201 - 300 (1) 301 - 400 (1) Melting Point (°C) less than 0 (2) 0 - 100 (9) 101 - 200 (1) 201 - 300 (1) Reaction Suitability. Phosphorus Trichloride Market: increasing applications for using Pcl3 products for producing flame retardants in the US. Phosphorus trichloride is produced by the reaction of yellow phosphorus and chloride. The phosphorus is in the +5 oxidation state. Phosphorus trichloride, Phosphorus trichloride solution, Phosphorus chloride, trichlorophosphane, trichlorophosphine. PCl 3 + Cl 2 â PCl 5. 2004-09-16. The chlorine atom has a covalent radius of 102±4 pm and its Van ...
Research in WI has shown that cranberries require additions of phosphorus fertilizer for sustained productivity. However, trying to determine the right amount of phosphorus to add and when to add it is very difficult - one of the few aspects of crop management where cranberries have something in common with other crops. What makes the situation extra hard in cranberries is that programs of soil and tissue testing often give conflicting information - it is not uncommon to see soil test values of phosphorus in or above the normal range (20-80 ppm Bray P) and tissue phosphorus contents either at the low end of the normal range (0.10%) or below this value. Phosphorus availability in the soil is related to many things. In an established cranberry planting the moisture status of the soil (from the saturated conditions after winter flood water is drawn to the drier conditions of the summer) plays a role in phosphorus availability. Type of soil, whether a mineral, sandy soil, a classic sanded peat, or a
This publication deals with the use of phosphatic fertilizers to increase agricultural production in acid soils worldwide. It presents results obtained in a co-ordinated research project, which generated new information on the chemistry of soil phosphorus, tests for available soil phosphorus, phosphate nutrition of crops, evaluation of the agronomic effectiveness of Phosphate Rocks and recommendations on phosphorus fertilizers with particular emphasis on the utilization of indigenous PR sources. Due consideration was also given to environmental issues.. ...
TY - CHAP. T1 - Calcium and phosphorus metabolism and the Parathyroid Gland. AU - Nwariaku, Ohwofiemu E. PY - 2006/1/1. Y1 - 2006/1/1. N2 - The parathyroid glands comprise a group of endocrine structures (usually 4 in number) that either hug the posterior surface of the thyroid gland or are in close proximity to it. Although exceedingly small in size, they play crucial roles in the maintenance of calcium and phosphorus balance. Their function spans a range of activities, including blood coagulation, modulation of membrane permeability, muscle contraction, neuromuscular excitability, and the regulation of various signal transduction processes within cells. Their importance to the surgeon is usually related to states of overactivity in which hypercalcemia may ensue. Occasionally, these glands also become important in surgical practices when a state of hypocalcemia results, as may occur after total thyroidectomy for goiter or neoplasia. The intricate control systems regulated by the parathyroid ...
This paper addresses the structural characteristics and phase transformation behavior of plain electroless Ni-P and Ni-P-Si3N4 composite coatings. Composite coatings were prepared using a low phosphorus electroless nickel bath containing 1 and 5 g/L submicron silicon nitride particles at pH 6.5 and temperature 85 +/- 2 degrees C. Deposition rate was around 6 mu m/h for both plain and composite coatings. The amount of silicon nitride particles codeposited in the Ni-P matrix is 3.5 wt.% (N1) and 4.5 wt.% (N2) with the addition of I and 5 g/L particles in the bath. Deposit surface composition analysis carried out by energy-dispersive analysis of X-ray (EDX) results shows that plain Ni-P and Ni-P-Si3N4 deposits are having around 3.5 wt.% phosphorus. The X-ray diffraction (XRD) patterns of Ni-P-Si3N4 coatings are very similar to that of plain electroless Ni-P coating in as-deposited condition. Presence of a single high intensity peak at 44.8 degrees 20 which corresponds to Ni(111) peak is present in ...
Enhanced biological phosphorus removal (EBPR) is a sewage treatment configuration applied to activated sludge systems for the removal of phosphate. The common element in EBPR implementations is the presence of an anaerobic tank (nitrate and oxygen are absent) prior to the aeration tank. Under these conditions a group of heterotrophic bacteria, called polyphosphate-accumulating organisms (PAO) are selectively enriched in the bacterial community within the activated sludge. These bacteria accumulate large quantities of polyphosphate within their cells and the removal of phosphorus is said to be enhanced. Generally speaking, all bacteria contain a fraction (1-2%) of phosphorus in their biomass due to its presence in cellular components, such as membrane phospholipids and DNA. Therefore, as bacteria in a wastewater treatment plant consume nutrients in the wastewater, they grow and phosphorus is incorporated into the bacterial biomass. When PAOs grow they not only consume phosphorus for cellular ...
Phosphorus is a chemical element with symbol P and atomic number 15. A multivalent nonmetal of the nitrogen group, phosphorus as a mineral is almost always present in its maximally oxidised state, as inorganic phosphate rocks. Elemental phosphorus exists in two major forms-white phosphorus and red phosphorus-but due to its high reactivity, phosphorus is never found as a free element on Earth.. The first form of elemental phosphorus to be produced (white phosphorus, in 1669) emits a faint glow upon exposure to oxygen - hence its name given from Greek mythology, Φωσφόρος meaning light-bearer (Latin Lucifer), referring to the Morning Star, the planet Venus. The term phosphorescence, meaning glow after illumination, originally derives from this property of phosphorus, although this word has since been used for a different physical process that produces a glow. The glow of phosphorus itself originates from oxidation of the white (but not red) phosphorus- a process now termed ...
The oxidation and exchange reactions of simple phosphorus compounds and the behaviour of a range of low valent triphenylphosphine complexes of the transition metals in liquid hydrogen chloride at room temperature were studied by (^31)P nuclear magnetic resonance spectroscopy. When oxidation did occur, the phosphorus was oxidised from the +3 to the +5 oxidation state. In general, five co-ordinate fluorine containing phosphorus(V) species were produced from the oxidation of phosphorus(III) fluoride and four co-ordinate species of type PBr(_x)C1(_4-x)(^+) (O ≤ x ≤ 4) from the oxidation of phosphorus(ill) bromide or chloride. The (^31)P n.m.r. chemical shifts of the complete series PBr(_x)C1(_4-x)(^+) (O ≤ x ≤ 4) were recorded in solution for the first time, stabilised by tetrachloroborate anions in liquid hydrogen chloride. The protonation of a series of oxygen containing phosphorus (V) compounds in the solvent at room temperature was investigated using P n.m.r. spectroscopy. A measure of ...
The Chemical Abstracts Service registry number is a unique identifier of a particular chemical, designed to prevent confusion arising from different languages and naming systems. White phosphorus is the main among them. PCl 3 + Cl 2 → PCl 5. The chemical formula of this compound is P 4 O 10. Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript. However, it is named after its empirical formula, which is P 2 O 5. Much less reactive than the allotropic white phosphorus. Chemical Treatment to Remove Phosphorus Other articles where Red phosphorus is discussed: chemical industry: Phosphorus: Red phosphorus, comparatively harmless, is used in matches. In 1772, Scheele built it from the bone-ash.Phosphorus is an element. A) BaP. Properties of Phosphorus Pentoxide Physical Properties. The chemical reaction is given below. Thus, phosphorus can react with fluorine to form both PF 3 and PF 5. The following ...
TY - JOUR. T1 - Grasshoppers regulate N. T2 - P Stoichiometric homeostasis by changing phosphorus contents in their frass. AU - Zhang, Zijia. AU - Elser, James. AU - Cease, Arianne. AU - Zhang, Ximei. AU - Yu, Qiang. AU - Han, Xingguo. AU - Zhang, Guangming. PY - 2014/8/4. Y1 - 2014/8/4. N2 - Nitrogen (N) and phosphorus (P) are important limiting nutrients for plant production and consumer performance in a variety of ecosystems. As a result, the N:P stoichiometry of herbivores has received increased attention in ecology. However, the mechanisms by which herbivores maintain N:P stoichiometric homeostasis are poorly understood. Here, using a field manipulation experiment we show that the grasshopper Oedaleus asiaticus maintains strong N:P stoichiometric homeostasis regardless of whether grasshoppers were reared at low or high density. Grasshoppers maintained homeostasis by increasing P excretion when eating plants with higher P contents. However, while grasshoppers also maintained constant body N ...
In more severe cases, a person may die from the toxicity. [8] India and Japan banned the use of white phosphorus in 1919 after the United States, followed by Chinas ban on white phosphorus usage in match production in 1925. As an element, it generally exists as one of two main allotropes - white phosphorus or red phosphorus, but it can also exist as violet and black phosphorus. Background. The Occupational Safety and Health Administration (OSHA) has set the phosphorus exposure limit (Permissible exposure limit) in the workplace at 0.1 mg/m3 over an 8-hour workday. Yellow phosphorus has a simple chemistry; when combined with H2O and CO2 molecules from respiration and some amino acids such as lysine, bisphosphonates result. The White Phosphorus Match Act of 1912, signed by President William Howard Taft on April 9, 1912, required manufacturers who used white phosphorus to register with district collectors of internal revenue and to file periodic notices and returns; levied a tax of two cents per ...
Three barrows weighing 45.0 kg, fitted with simple T-cannulas in both the duodenum and terminal ileum, were assigned to diets in a 3횞3 Latin Square design experiment to determine the effects of two calcium levels (0.8% vs 0.4%) on phytase activity and nutrient balance in growing pigs. The control diet contained 0.8% calcium, with no added inorganic phosphorus (0.45% total phosphorus) and no added phytase. The two additional experimental diets contained microbial phytase (750 phytase units/kg) and supplied either 0.8% or 0.4% calcium. With added microbial phytase, ileal and total tract digestibility of total phosphorus were improved by 20.9 and 13.8 percentage units, respectively (p=0.01). The apparent duodenal and ileal digestibility of phytate phosphorus were increased by 51.8 and 49.7 percentage units. (p=0.001). Lowering dietary calcium in the presence of microbial phytase increased the digestibility of phytate phosphorus by an additional 10.9 (p=0.001) and 5.7 percentage units for duodenal ...
Weaned crossbred barrows (n=126) were used to investigate the effect of four different levels of a new Zymetrics Inc. phytase (100 Units (U); 500 U; 2,500 U; or 12,500 U) on low phosphorus corn-soybean meal diets. This tested the theory that supplementation of higher phytase amounts to a low phosphorus diet will increase bone strength as well as maintain growth performance at a higher rate than those of lower or no phytase supplementation. Pigs were adjusted to a common Phase I diet for two weeks post-weaning before allocation to 1 of 6 dietary treatments for 4 weeks. Increasing supplemental phytase showed a linear increase in ADG (p , .01) and also showed an linear increase in overall body weight (BW) during the growing and finishing stages of the experiment. Daily feed intake and feed efficiency showed a linear increase (p , .01) and overall breaking strength increased linearly with phytase supplementation. Gain to feed ratios in pigs with 2,500 U and 12,500 U showed better performance than ...
Southern pines are typically limited by nitrogen (N) and phosphorus (P) availability in the soil environment. While the absolute quantities of P in forests soils may be large, the concentration of inorganic P in the soil solution is typically very small (&60; 0.01 mg L&178;-1). A onetime application of just 56 kg P ha&178;-1 can substantially increase growth of pine stands over a 20 year rotation (Pritchett and Comerford, 1982&59; Allen et al., 1990). Phosphorus fertilization of Pinus radiata in New Zealand has also shown long-term effects on labile P pools in the soil which improved stand growth during the subsequent rotations (Ballard, 1978&59; Gentle et al., 1986). Identifying and quantifying the biologically available P pools in the soil environment will help foresters in making site-specific P fertilizer prescriptions. I examined soil phosphorus pools using the Hedley sequential fractionation procedure and Mehlich-3 soil tests in a long-term loblolly pine (Pinus taeda L.) fertilization ...
Click Here To Access The Sample Report: Phosphorus Starter Fertilizer Market Company overview, financial overview, product portfolio, new project launched, recent development analysis are some of the key parameters included in the profile. The study then describes the drivers and restraints for the market along with the impact they have on the demand over the forecast period. Moreover, the report includes an exhaustive study of opportunities available in the market on a global level.. The report also documents the historic, current and expected future market size, position, of Phosphorus Starter Fertilizer industry. The report further signifies the upcoming challenges, restraints and unique opportunities in the Phosphorus Starter Fertilizer market. The report demonstrates the trends and technological advancement already underway in the Phosphorus Starter Fertilizer industry. In addition to the current inclinations over technologies ...
Toxicological Data on Ingredients: Red Phosphorus LD50: Not available. Phosphorous has several allotropes. Sulfur . It is very reactive and will spontaneously inflame in air so it is stored under water. 16. Question: Red phosphorus purification I recently acquired a bottle of red phosphorus that is over 25 years old. Red phosphorus exists as an amorphousnetwork. either at atmospheric pressure, or at elevated pressures, 4. In absence of water. Rates for H 2 evolution were measured by irradiating a 100 mL of solution containing 50 mg of products and 5 mL of methanol (as … Red phosphorus (RP) has attracted extensive attention as an anodic material for lithium-ion batteries (LIBs) due to its high theoretical specific capacity of 2596 mA h g− 1 and earth abundance. The species were identified by 31 P NMR spectroscopy in solution and by X‐ray crystal‐structure determination of (Bu 4 N) 2 P 16 in the solid state. As an element, phosphorus exists in two major forms-white phosphorus and red phosphorus
Amorphous structure of covalently-bonded P atoms, Crystalline pentagonal nanotubes of covalently bonded P atoms, Van der Waals bonded layers of P atoms covalently bonded in a puckered honeycomb structure, Heating of phosphate rock with carbon and silica to ~1200°C, Heating of white phosphorus to ~300°C in an air-free environment, Heating and cooling of white phosphorus dissolved in lead, or heating of red phosphorus in a sealed tube, Heating of white phosphorus to ~200°C at 1.2GPa, or from red phosphorus at 8.5GPa, Will auto-ignite when exposed to air at ~30°C. Single-layer black phosphorus hole mobility compares favourably with Transition Metal Dichalcogenide Monolayers (TMDCs) but is orders of magnitude below that of graphene. In all cases the Ref. Structure of White Phosphorus: A molecule of white phosphorus has four atoms. P is bonded in a trigonal non-coplanar geometry to three equivalent P atoms. Ahamed, Mohd Imran (et al.) Five samples of black phosphorus gave identical powder ...
Allotropes Of Phosphorus - different allotropic forms of Phosphorus and their properties, namely White Phosphorus, Red Phosphorus and Black Phosphorus and much more @Byjus.
Phosphorus Rex is a supervillain in DC Comics. Phosphorus Rex first appeared in Batman #666 and was created by Grant Morrison. Phosphorus Rex is a fiery member of the Circus of Strange. After Mister Toad was apprehended by the Gotham City Police Department, Phosphorus Rex joined the Circus of Strange members Big Top, Siam, and a group of Professor Pygs Dollotrons into attacking the Gotham City Police Department which resulted in four police officers getting killed and six others ending up injured. Phosphorus Rex and the rest of the Circus of Strange were defeated by Batman and Robin. Batman later interrogated Phosphorus Rex into giving him the identity of the Circus of Stranges leader. What Phosphorus Rex told Batman led him to Professor Pyg. In The New 52 (a reboot of the DC Comics universe), Phosphorus Rex alongside Professor Pyg were seen as inmates of Arkham Asylum. At the time when Batman and Nightwing arrived at Arkham Asylum to capture a corrupt guard who ended up releasing the ...
Arbuscular mycorrhizal fungal inoculation improves Nauclea orientalis L. growth dan phosphorus uptake in gold mine tailings soil media
Downloadable (with restrictions)! Degraded groundwater, impaired swimming, fishing, algae and weed problem are often associated with eutrophication from phosphorus (P) loadings in surface and groundwater. The concentrated growth of poultry industry and over application of litter on pasture lands may lead to excessive nutrient loadings in surface and groundwater. The Cooperative Extension Service recommendation suggests that no poultry litter should be applied if the soil test P exceeds 300 pounds per acre, irrespective of the marginal costs and benefits associated with one more unit of litter application on that piece of land. The objective of this paper is to model the economics of P loadings from poultry litter and analyze the policy implications of Cooperative Extension Services recommendation on quantity restriction on litter applications with empirical evidence. The results indicate that there exists significant difference in the marginal values of soil between different soil series, indicating
The assumption that nitrogen enrichment caused by human activities is threatening biodiversity in Europe and North America may be false. A survey of herbaceous terrestrial ecosystems covering a gradient of decreasing nitrogen deposition from Western Europe to Siberia suggests that phosphorus, not nitrogen, is often the key element. In the 274 sites examined, many more endangered plant species persist under phosphorus-limited than nitrogen-limited conditions, so extra phosphorus is the more likely to cause species loss. Conservation policies biased towards reducing nitrogen enrichment are unlikely to succeed; rather, attention should focus on reducing phosphorus availability. On the cover, Great Vasyugan in Western Siberia, a peatland harbouring many plant species under P-limited conditions, some of which are shown on the cover. Main image: Wladimir Bleuten; inserts: Franziska Tanneberger. Nitrogen enrichment is widely thought to be responsible for the loss of plant species from temperate terrestrial
Apply manure less-than-annually at a nitrogen-based rate: Another method to prevent phosphorus buildup is to apply at a rate that meets the nitrogen needs of the crop, and then refrain from manure applications in following years until the excess phosphorus has been depleted by crop uptake. This method works best with rotations that include crops with adequate phosphorus uptake. Otherwise, it might take many years before manure could be applied again. For example, in some pasture systems, turkey manure applied using this method would receive 15 years worth of phosphorus. And some regions have regulations stating that no more than 5-years-worth of phosphorus can be applied at a time from manure ...
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Get a Sample of United States Phosphorus Fertilizer market research report from- No. of Report Pages: 123. Price (Single User Licence): $3800. Purchase the Report at: This United States Phosphorus Fertilizer Industry report also takes into account the past price of 2011-2015 and future price of 2016-2021 as per the supply-demand relation along with perspectives and United States Phosphorus Fertilizer market forecasts. Additionally, the United States Phosphorus Fertilizer Market report also discusses the data on deals (distributors) and buyers, providing a holistic insight into the supply chain and sales details of United States Phosphorus Fertilizer Market.. Several important topics included in the United States Phosphorus Fertilizer market research report are as follows:. • Overview of United States Phosphorus Fertilizer Market. • Market Size (Value and Volume) analysis of ...
Lim, P.,Jacob, E.,Tock, E.P.C.,Pwee, H.S. (1977). Calcium and phosphorus metabolism in nephrotic syndrome. Quarterly Journal of Medicine 46 (183) : 327-338. [email protected] Repository ...
TY - JOUR. T1 - Mycorrhizal impacts on root trait plasticity of six maize varieties along a phosphorus supply gradient. AU - Wang, Xin-Xin. AU - Li, Hongbo. AU - Chu, Qun. AU - Feng, Gu. AU - Kuyper, Thomas W.. AU - Rengel, Zed. PY - 2020/1/9. Y1 - 2020/1/9. N2 - Background and aims: Plasticity of plants refers to their ability to produce different phenotypes in different environments. Plants show plasticity aboveground as well as belowground. The influence of the arbuscular mycorrhizal fungal (AMF) symbiosis on root plasticity is poorly known. This study aimed to quantify plasticity of root-system related, morphological, physiological or mycorrhizal traits along a soil phosphorus (P) supply gradient. Methods: Six varieties of maize (Zea mays L.) were grown in pots with or without AMF at five rates of P supply. Fifteen root traits were measured and calculated after seven weeks of growth. Results: Root system traits (biomass and length) and physiological traits (phosphatase activity at the root ...
Newland, J; Gregor, R F.; and Cornatzer, W E., Phosphorus metabolism in viral-induced neoplasia. II. In vivo and in vitro studies of the milk and mammary gland lipides of strains of mice susceptible to the mammary tumor virus. (1965). Subject Strain Bibliography 1965. 1123 ...
Phosphorus Metabolism Disorders. On-line free medical diagnosis assistant. Ranked list of possible diseases from either several symptoms or a full patient history. A similarity measure between symptoms and diseases is provided.
Phosphorus concentrations in the water of the Hyrum reservoir - Little Bear River watershed were determined by collecting 12 samples every two weeks over a seven month period and analyzing them for dissolved orthophosphate, total dissolved phosphorus, and total unfiltered phosphorus. The concentrations obtained were used in conjunction with a water budget to determine a phosphorus budget. Apparent major inputs of phosphorus to the reservoir included a trout farm and runoff from agricultural land in the watershed. Statistical analyses of the data were made to determine what effect precipitation, streamflow, and mileage downstream had on the concentrations of phosphorus in the watershed ...
Phosphorus concentrations in the water of the Hyrum reservoir - Little Bear River watershed were determined by collecting 12 samples every two weeks over a seven month period and analyzing them for dissolved orthophosphate, total dissolved phosphorus, and total unfiltered phosphorus. The concentrations obtained were used in conjunction with a water budget to determine a phosphorus budget. Apparent major inputs of phosphorus to the reservoir included a trout farm and runoff from agricultural land in the watershed. Statistical analyses of the data were made to determine what effect precipitation, streamflow, and mileage downstream had on the concentrations of phosphorus in the watershed ...
Phosphorus (P) is a particularly complex nutrient in the soil because large amounts can be ?locked? up making it unavailable to plants. Measurement of P in soil, and determining fertiliser requirements, are therefore difficult as not all P measured will be available for plant uptake. See Phosphorus factsheet for more detail.. Diffusive Gradient in Thin-Films (DGT) is a new method of measuring soil phosphorus and other micronutrient levels, with tests showing it to be a more accurate measure of the growing crops nutrient requirement than more conventional methods. DGT-P is different to standard measures of soil phosphorus as it reflects the capacity of the soil to supply P in the soil rather than to the concentration of phosphorus in an extract. The DGT-P method aims to ?mimic? the plant root by only measuring the phosphorus in the soil that is accessible to the plant.. ...
Phosphorus, an essential element for all living organisms, is a limiting nutrient in many regions of the ocean due to its fast recycling. Changes in phosphate (Pi) availability in aquatic systems affect diatom growth and productivity. We investigated the early adaptive mechanisms in the marine diatom Phaeodactylum tricornutum to P deprivation using a combination of transcriptomics, metabolomics, physiological and biochemical experiments. Our analysis revealed strong induction of gene expression for proteins involved in phosphate acquisition and scavenging, and down-regulation of processes such as photosynthesis, nitrogen assimilation and nucleic acid and ribosome biosynthesis. P deprivation resulted in alterations of carbon allocation through the induction of the pentose phosphate pathway and cytosolic gluconeogenesis, along with repression of the Calvin cycle. Reorganization of cellular lipids was indicated by coordinated induced expression of phospholipases, sulfolipid biosynthesis enzymes and a
Publication 1 of 168 AUTHOR Putnam, James E. TITLE Occurrence of phosphorus, other nutrients, and triazine herbicides in water from the Hillsdale Lake Basin, Northeast Kansas, May 1994 through May 1995 / by James E. Putnam ; prepared in cooperation with the Hillsdale Lake Region Resource Conservation and Development Council. IMPRINT Lawrence, Kan. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Information Services [distributor], 1997. Publication 2 of 168 AUTHOR Ramos-Gines, Orlando. TITLE Water balance and quantification of total phosphorus and total nitrogen loads entering and leaving the Lago de Cidra, central Puerto Rico / by Orlando Ramos-Gines ; prepared in cooperation with the Puerto Rico Aqueduct and Sewer Authority ; Puerto Rico Environmental Quality Board and the Puerto Rico Department of Natural and Environmental Resources. IMPRINT San Juan, P.R. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Branch of Information Services [distributor], 1997. ...
Treated effluent discharged from municipal wastewater-treatment plants to the Assabet River in central Massachusetts includes phosphorus, which leads to increased growth of nuisance aquatic plants that decrease the rivers water quality and aesthetics in impounded reaches during the growing season. To improve the rivers water quality and aesthetics, the U.S. Environmental Protection Agency approved a total maximum daily load for phosphorus in 2004 that directed the wastewater-treatment plants to reduce the amount of total phosphorus discharged to the river by 2012. The permitted total phosphorus monthly average of 0.75 milligrams per liter during the aquatic plant growing season (April 1 through October 31) was reduced by the total maximum daily load to a target of 0.1 milligrams per liter by 2012, and the nongrowing-season limit was unchanged at 1.0 milligrams per liter.From October 2008 through April 2014, the U.S. Geological Survey, in cooperation with the Massachusetts Department of Environmental
This report describes a mathematical modeling and systems study of the eutrophication problem in Lake Balaton, Hungary. Since it is generally agreed that phosphorus exerts a major influence on the direction of trophic change within the lake, the work focused on the dynamics of the phosphorus level in the lake ecosystem over the period 1976-1979. The Balaton Sector Model (BALSECT) one of the three ecological models developed at IIASA for examining phosphorus dynamics and phytoplankton growth in the lake ecosystem, was used to simulate the basic biological and chemical interactions between phosphorus compartments in the aquatic environment. BALSECT also considers sediment-water phosphorus exchange and phosphorus transfer between the different basins of the lake by advective and wind-induced water flows.. ...
Discharge of wastewater containing excess amounts of nutrients such as phosphorus (P) cause eutrophication of the receiving waterbodies. The consequences related to eutrophication can vary in severity, from esthetical issues to medical threats. The increasing focus on P as a non-renewable resource and the necessity for recovering and recycling P from nutritious wastewater has made biological phosphorus removal (EBPR) in wastewater a more favorable method compared to chemical precipitation. EBPR is a complex process where several essential process conditions and prerequisites make Norwegian wastewater, which typically is diluted and low in nutrients, less ideal for EBPR.. In this study, the possibility of applying EBPR in a local and presumably typical Norwegian wastewater (Lerkendal wastewater) was examined. The objectives of this work were to characterize the unknown wastewater in terms of relevant substances according to EBPR, and perform batch experiments to assess the bio-P activity in the ...
Low soil P availability is a primary constraint to common bean (Phaseolus vulgaris L.) production in Latin America and Africa. Substantial genotypic variation in bean adaptation to low phosphorus (LP) availability has been linked with root traits that enhance the efficiency of soil foraging. The objectives of this study were to identify quantitative trait loci (QTLs) for P accumulation and associated root architectural traits, to facilitate genetic improvement and to reveal physiological relationships. Eighty‐six F5.7 recombinant inbred lines (RILs) were developed from a cross between G19833, an Andean landrace with high total P accumulation, and DOR 364, a Mesoamerican cultivar with low total P accumulation in LP conditions. A genetic map constructed with restriction fragment length polymorphisms (RFLPs), microsatellites, and PCR‐based markers covering 1703 centimorgans (cM) total genetic distance and all eleven linkage groups (LGs) was used for QTL analysis. Seventy‐one RILs were ...
TY - JOUR. T1 - Lack of Endothelial Nitric Oxide Synthase Accelerates Ectopic Calcification in Uremic Mice Fed an Adenine and High Phosphorus Diet. AU - Oe, Yuji. AU - Mitsui, Shohei. AU - Sato, Emiko. AU - Shibata, Naoko. AU - Kisu, Kiyomi. AU - Sekimoto, Akiyo. AU - Miyazaki, Mariko. AU - Sato, Hiroshi. AU - Ito, Sadayoshi. AU - Takahashi, Nobuyuki. N1 - Funding Information: Supported by Japan Society for the Promotion of Science grant-in-aid JSPS18K15993 . Publisher Copyright: © 2021 American Society for Investigative Pathology. PY - 2021/2. Y1 - 2021/2. N2 - Ectopic calcification is a risk of cardiovascular disease in chronic kidney disease (CKD) patients, and impaired endothelial nitric oxide synthase (eNOS) is involved in the CKD complications. However, whether eNOS dysfunction is a cause of ectopic calcification in CKD remains to be elucidated. To address this issue, we investigated the role of eNOS in ectopic calcification in mice with renal injury caused by an adenine and ...
If you have a lawn and want to protect Lake Tahoes water quality, one of the most important things you can do is avoid over-fertilizing. Fertilizers can leech into the ground water and eventually become runoff into the lake causing algae growth that affects our water quality and clarity.. Fertilizer is prohibited in the backshore and in stream environment zones basin-wide. However, in other areas on your property where fertilizer may be needed to help plants become established, your help is needed. The best times to add phosphorus to the soil is just before planting - especially with transplants. Use composts and organics as amendments to the soil, as these have good levels of available phosphorus for plants to use. Be sure to monitor phosphorus and pH levels in your soil to make sure you are not applying more than what is needed. You might want to consider having your soil tested annually. In fact, soil experts tell us that Tahoe soils have plenty of available phosphorus and adding phosphorus ...
Phosphorus (P) losses from agricultural land is a serious environmental issue because of the impact of P on freshwater eutrophication (McDowell, et al., 2001). The movement of P from soil to surface water is impacted by P input to soil and manure management practices that impact P transport processes. Twenty-one natural runoff plots were established to monitor the effect of time and method of composted beef feedlot manure application and feed P input on net losses of bio-available P and sediment in surface runoff. Reducing feed P inputs resulted in a 33% reduction in manure P content. Runoff losses of P were reduced in direct proportion to feed P inputs. Runoff volume and sediment losses were lowest in the year s of compost application and we observed that a longer time interval between compost application date and spring runoff season resulted in increase sediment, runoff and P loss. Bray-PI extractable soil P (0-15cm) increased from 27 ppm prior to compost application up to 400 ppm in direct
NPK Industries RAW Phosphorus - 2 oz RAW Phosphorus is an essential element for plant growth. Phosphorus itself is required for all life and is often a limiting nutrient for crops. Its purpose cannot be fulfilled by any other element. Due to its many uses at all stages of growth, crops attempting to maintain optimum growth levels are often deficient in Phosphorus. RAW Phosphorus is a great way to supplement any feeding program. Supplement any feeding program. Easy to use. Fully soluble. NPK Industries: RAW Phosphorus - 2 oz [dl-NPK350] - Nutrients & Supplements - Gardening & Hydroponics Store -
Looking for online definition of phospholipid as phosphorus in the Medical Dictionary? phospholipid as phosphorus explanation free. What is phospholipid as phosphorus? Meaning of phospholipid as phosphorus medical term. What does phospholipid as phosphorus mean?
BACKGROUNDS AND AIMS: In cultivated rice, phosphorus (P) in grains originates from two possible sources, namely exogenous (post-flowering root P uptake from soil) or endogenous (P remobilization from vegetative parts) sources. This study investigates P partitioning and remobilization in rice plants throughout grain filling to resolve contributions of P sources to grain P levels in rice. METHODS: Rice plants (Oryza sativa IR64) were grown under P-sufficient or P-deficient conditions in the field and in hydroponics. Post-flowering uptake, partitioning and re-partitioning of P was investigated by quantifying tissue P levels over the grain filling period in the field conditions, and by employing (33)P isotope as a tracer in the hydroponic study. KEY RESULTS: Post-flowering P uptake represented 40-70 % of the aerial plant P accumulation at maturity. The panicle was the main P sink in all studies, and the amount of P potentially remobilized from vegetative tissues to the panicle during grain filling was
Phosphorus and chromium[edit]. Concentrations of polyphosphates or phosphonates with zinc and chromates or similar compounds ... and phosphorus compounds may provide the limiting essential nutrient for algal growth contributing to biofouling of the cooling ...
Phosphorus leaching[edit]. Phosphorus (P) is a key nutrient regarding the eutrophication of surface waters and has been shown ... a b Börling, Katarina (2003). Phosphorus sorption, accumulation and leaching. Diss. Sveriges lantbruksuniv., Acta Universitatis ... Phosphorus added to such soils leaches simply because most of the potential adsorption sites are occupied by P input from the ... Phosphorus speciation in a long-term manure-amended soil profile - Evidence from wet chemical extraction, 31P-NMR and P K-edge ...
White Phosphorus: Israel is a nation both keen and able to hold itself to account, The Times 2 February 2010 ... IDF fired phosphorus at children'[permanent dead link], JPost, 13 October 2009. ... White phosphorus allegations[edit]. The report says that Israeli forces were "systematically reckless" in determining the use ... More generally, the UN report recommended that "serious consideration should be given to banning the use of white phosphorus in ...
Phosphorus[edit]. Phosphorus improves root growth, fruit yield and weight and juice while it reduces peel thickness. ... Nitrogen, Potassium and Phosphorus are the main macronutrients needed in citrus production, as well as Calcium, Magnesium and ...
Phosphorus. 1.8 Sulfur. 1.8 Chlorine. 1.75 Copper. 1.4 Van der Waals radii taken from. Bondi's compilation (1964).[2]. Values ...
... phosphorus (40% DV), iron (50% DV), and zinc (35%), among others (table).[14][15] When lentils are cooked by boiling, protein ... although phosphorus, nitrogen, potassium, and sulfur may be used for nutrient-poor soils.[2] ...
Typical of leaf vegetables, Malabar spinach is high in vitamin A, vitamin C, iron, and calcium. It is low in calories by volume, but high in protein per calorie. The succulent mucilage is a particularly rich source of soluble fiber. Among many other possibilities, Malabar spinach may be used to thicken soups or stir-fries with garlic and chili peppers.. In the Philippines, the leaves of this vegetable is one of the main ingredients in an all vegetable dish called utan that is served over rice. It is usually cooked with sardines, onions, garlic, and parsley.. In Karnataka Cuisine (Karavali and Malnad regions), the leaves and stems are used to make Basale Soppu Saaru/Curry (Especially in combination with Jackfruit seed) and soupy raita with curd. Beary Muslims of coastal Karnataka prepare Basalede kunhi Pindi (small rice dumplings smeared in gravy prepared from Malabar spinach and dried tuna ). In Bengali cuisine it is widely used both in a vegetable dish, cooked with red pumpkin, and in ...
Phosphorus 00700.000700 4000; 4000 Quantity A component of bones (see apatite), cells, in energy processing, in DNA and ATP (as ... Institute of Medicine (1997). "Fluoride". Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D and Fluoride ... Corbridge, D. E. C. (1995-02-01). Phosphorus: An Outline of Its Chemistry, Biochemistry, and Technology (5th ed.). Amsterdam: ... "Phosphorus in diet". MedlinePlus, National Library of Medicine, US National Institutes of Health. 2 December 2016. Retrieved 24 ...
... phosphorus, magnesium, and iron (range of DV 52 to 77%), have considerable content (table). B vitamins have moderate to rich ...
In Indian cuisine, ginger is a key ingredient, especially in thicker gravies, as well as in many other dishes, both vegetarian and meat-based. Ginger has a role in traditional Ayurvedic medicine. It is an ingredient in traditional Indian drinks, both cold and hot, including spiced masala chai. Fresh ginger is one of the main spices used for making pulse and lentil curries and other vegetable preparations. Fresh ginger together with peeled garlic cloves is crushed or ground to form ginger garlic masala. Fresh, as well as dried, ginger is used to spice tea and coffee, especially in winter. In south India, "sambharam" is a summer yogurt drink made with ginger as a key ingredient, along with green chillies, salt and curry leaves. Ginger powder is used in food preparations intended primarily for pregnant or nursing women, the most popular one being katlu, which is a mixture of gum resin, ghee, nuts, and sugar. Ginger is also consumed in candied and pickled form. In Japan, ginger is pickled to make ...
Persillade is a mixture of chopped garlic and chopped parsley in French cuisine. Parsley is the main ingredient in Italian salsa verde, which is a mixed condiment of parsley, capers, anchovies, garlic, and sometimes bread, soaked in vinegar. It is an Italian custom to serve it with bollito misto or fish. Gremolata, a mixture of parsley, garlic, and lemon zest, is a traditional accompaniment to the Italian veal stew, ossobuco alla milanese. In England, parsley sauce is a roux-based sauce, commonly served over fish or gammon. Root parsley is very common in Central, Eastern, and Southern European cuisines, where it is used as a snack or a vegetable in many soups, stews, and casseroles, and as ingredient for broth. In Brazil, freshly chopped parsley (salsa) and freshly chopped scallion (cebolinha) are the main ingredients in the herb seasoning called cheiro-verde (literally "green aroma"), which is used as key seasoning for major Brazilian dishes, including meat, chicken, fish, rice, beans, stews, ...
Bitter melon is generally consumed cooked in the green or early yellowing stage. The young shoots and leaves of the bitter melon may also be eaten as greens. In Chinese cuisine, bitter melon (苦瓜, pinyin: kǔguā, POJ: khó͘-koe) is valued for its bitter flavor, typically in stir-fries (often with pork and douchi), soups, dim sum, and herbal teas (gohyah tea). It has also been used in place of hops as the bittering ingredient in some beers in China and Okinawa.[3] Bitter melon is commonly eaten throughout India. In North Indian cuisine, it is often served with yogurt on the side to offset the bitterness, used in curry such as sabzi or stuffed with spices and then cooked in oil. In South Indian cuisine, it is used in the dishes thoran/thuvaran (mixed with grated coconut), mezhukkupuratti (stir-fried with spices), theeyal (cooked with roasted coconut) and pachadi (which is considered a medicinal food for diabetics). Other popular recipes include preparations with curry, deep-frying with ...
Usually the deep purple roots of beetroot are eaten boiled, roasted or raw, and either alone or combined with any salad vegetable. A large proportion of the commercial production is processed into boiled and sterilized beets or into pickles. In Eastern Europe, beet soup, such as borscht, is a popular dish. In Indian cuisine, chopped, cooked, spiced beet is a common side dish. Yellow-coloured beetroots are grown on a very small scale for home consumption.[9]. The green, leafy portion of the beet is also edible. The young leaves can be added raw to salads, whilst the adult leaves are most commonly served boiled or steamed, in which case they have a taste and texture similar to spinach. Those greens selected should be from bulbs that are unmarked, instead of those with overly limp leaves or wrinkled skins, both of which are signs of dehydration. The domestication of beets can be traced to the emergence of an allele which enables biennial harvesting of leaves and taproot.[10]. Beetroot can be boiled ...
Forerunners to modern Brussels sprouts were probably cultivated in Ancient Rome.[citation needed] Brussels sprouts as they are now known were grown possibly as early as the 13th century in what is now Belgium. The first written reference dates to 1587. During the 16th century, they enjoyed a popularity in the southern Netherlands that eventually spread throughout the cooler parts of Northern Europe. Brussels sprouts grow in temperature ranges of 7-24 °C (45-75 °F), with highest yields at 15-18 °C (59-64 °F).[2] Fields are ready for harvest 90 to 180 days after planting. The edible sprouts grow like buds in helical patterns along the side of long, thick stalks of about 60 to 120 cm (24 to 47 in) in height, maturing over several weeks from the lower to the upper part of the stalk. Sprouts may be picked by hand into baskets, in which case several harvests are made of five to 15 sprouts at a time, or by cutting the entire stalk at once for processing, or by mechanical harvester, depending on ...
The poor taste and lack of sugar in modern garden and commercial tomato varieties resulted from breeding tomatoes to ripen uniformly red. This change occurred after discovery of a mutant "u" phenotype in the mid 20th century that ripened "u"niformly. This was widely cross-bred to produce red fruit without the typical green ring around the stem on uncross-bred varieties. Prior to general introduction of this trait, most tomatoes produced more sugar during ripening, and were sweeter and more flavorful.[40][41] Evidence has been found that 10-20% of the total carbon fixed in the fruit can be produced by photosynthesis in the developing fruit of the normal U phenotype. The u genetic mutation encodes a factor that produces defective chloroplasts with lower density in developing fruit, resulting in a lighter green colour of unripe fruit, and repression of sugars accumulation in the resulting ripe fruit by 10-15%. Perhaps more important than their role in photosynthesis, the fruit chloroplasts are ...
The wax gourd requires very warm weather to grow but can be stored for many months much like winter squash. Ash gourds of the Indian subcontinent have a white coating with rough texture (hence the name ash gourd, literally, in some vernaculars). South East Asian varieties have a smooth waxy texture. It is one of the few vegetables available during winter in areas of deciduous vegetation, hence its Chinese name literally means 'winter gourd'. The Wax Gourd can typically be stored for 12 months. In India, the wax gourd is recognized for its medicinal properties in the Ayurvedic system of medicine.[8] It is also has significance in spiritual traditions of India and Yoga, where it is identified as a great source of Prana.[10]. In Vietnamese cuisine, it is called bí đao, which is usually used to make soup or stew.[11] When cooked with pork short ribs, the resulting soup is traditionally thought to help produce more milk for breastfeeding mothers.[citation needed]. In Chinese cuisine the gourds are ...
Gourds were cultivated in Africa, Asia, Europe, and the Americas for thousands of years before Columbus' discovery of America. Historically, in Europe,[9] Walahfrid Strabo (808-849), abbot and poet from Reichenau and advisor to the Carolingian kings, discussed the gourd in his Hortulus as one of the 23 plants of an ideal garden.[10][11]. Recent research indicates some gourds have an African origin and that there were at least two unrelated domestications: one is thought to have occurred 8,000-9,000 years ago, based on the analysis of archeological samples found in Asia, and the second domestication is believed to have occurred 4,000 years ago, and has been traced from archeological discoveries in Egypt.. The mystery of the bottle gourd - namely that this African or Eurasian species was being grown in America over 8,000 years ago[12] - comes from the difficulty in understanding how it arrived in the Americas. The bottle gourd was originally thought to have drifted across the Atlantic Ocean from ...
Annona muricata is a small, upright, evergreen tree that can grow to about 30 feet (9.1 m) tall.[4][5][8][9] Its young branches are hairy.[9] Leaves are oblong to oval, 8 centimetres (3.1 in) to 16 centimetres (6.3 in) long and 3 centimetres (1.2 in) to 7 centimetres (2.8 in) wide. They are a glossy dark green with no hairs above, and paler and minutely hairy to no hairs below.[9] The leaf stalks are 4 millimetres (0.16 in) to 13 millimetres (0.51 in) long and without hairs.[9] Flower stalks (peduncles) are 2 millimetres (0.079 in) to 5 millimetres (0.20 in) long and woody. They appear opposite from the leaves or as an extra from near the leaf stalk, each with one or two flowers, occasionally a third.[9] Stalks for the individual flowers (pedicels) are stout and woody, minutely hairy to hairless and 15 millimetres (0.59 in) to 20 millimetres (0.79 in) with small bractlets nearer to the base which are densely hairy.[9] The petals are thick and yellowish. Outer petals meet at the edges without ...
Phosphorus 1669 H. Brand 1669 H. Brand Prepared from urine, it was the first element to be discovered since ancient times.[34] ... "15 Phosphorus". Retrieved 2008-09-12.. *^ "27 Cobalt". Retrieved 2008-09-12 ... Roza, Greg (2010). The Nitrogen Elements: Nitrogen, Phosphorus, Arsenic, Antimony, Bismuth. p. 7. ISBN 9781435853355. .. ...
Symptoms of mild cinchonism (which may occur from standard therapeutic doses of quinine) include flushed and sweaty skin, ringing of the ears (tinnitus), blurred vision, impaired hearing, confusion, reversible high-frequency hearing loss, headache, abdominal pain, rashes, drug-induced lichenoid reaction (lichenoid photosensitivity),[1] vertigo, dizziness, dysphoria, nausea, vomiting and diarrhea. Large doses of quinine may lead to severe (but reversible) symptoms of cinchonism: skin rashes, deafness, somnolence, diminished visual acuity or blindness, anaphylactic shock, and disturbances in heart rhythm or conduction, and death from cardiotoxicity (damage to the heart). Quinine may also trigger a rare form of hypersensitivity reaction in malaria patients, termed blackwater fever, that results in massive hemolysis, hemoglobinemia, hemoglobinuria, and kidney failure.[citation needed] Most symptoms of cinchonism (except in severe cases) are reversible and disappear once quinine is withdrawn. ...
Phosphorus 10% Magnesium 6% Zinc 4% Copper 4% Pop culture[edit]. *Tori Amos was featured in a 1980s commercial promoting the ...
... phosphorus and zinc. Chocolate is a good source (10-19% DV) of calcium, magnesium and iron. ...
One species, Sorghum bicolor,[10] native to Africa with many cultivated forms now,[11] is an important crop worldwide, used for food (as grain and in sorghum syrup or "sorghum molasses"), animal fodder, the production of alcoholic beverages, and biofuels. Most varieties are drought- and heat-tolerant, and are especially important in arid regions, where the grain is one of the staples for poor and rural people. These varieties form important components of pastures in many tropical regions. S. bicolor is an important food crop in Africa, Central America, and South Asia, and is the fifth-most important cereal crop grown in the world.[12]. Some species of sorghum can contain levels of hydrogen cyanide, hordenine, and nitrates lethal to grazing animals in the early stages of the plants' growth. When stressed by drought or heat, plants can also contain toxic levels of cyanide and/or nitrates at later stages in growth.[13]. Another Sorghum species, Johnson grass (S. halapense), is classified as an ...
The sweet orange is not a wild fruit,[15] having arisen in domestication from a cross between a non-pure mandarin orange and a hybrid pomelo that had a substantial mandarin component. Since its chloroplast DNA is that of pomelo, it was likely the hybrid pomelo, perhaps a BC1 pomelo backcross, that was the maternal parent of the first orange.[7][38] Based on genomic analysis, the relative proportions of the ancestral species in the sweet orange is approximately 42% pomelo and 58% mandarin.[39] All varieties of the sweet orange descend from this original cross, differing only by mutations selected for during agricultural propagation.[38] Sweet oranges have a distinct origin from the bitter orange, which arose independently, perhaps in the wild, from a cross between pure mandarin and pomelo parents.[38] The earliest mention of the sweet orange in Chinese literature dates from 314 B.C.[2] In Europe, the Moors introduced the orange to Spain which was known as Al-Andalus, modern Andalusia, with large ...
Like most true cactus species, prickly pears are native only to the Americas. Through human actions, they have since been introduced to many other areas of the world.[1][4] Prickly pear species are found in abundance in Mexico, especially in the central and western regions, and in the Caribbean islands (West Indies). In the United States, prickly pears are native to many areas of the arid, semi-arid, and drought-prone Western and South Central United States, including the lower elevations of the Rocky Mountains and southern Great Plains, where species such as Opuntia phaeacantha and Opuntia polyacantha become dominant, and to the desert Southwest, where several types are endemic. Prickly pear cactus is also native to sandy coastal beach scrub environments of the East Coast from Florida to southern Connecticut (Opuntia humifusa). Opuntia species are the most cold-tolerant of the lowland cacti, extending into western and southern Canada; one subspecies, O. fragilis var. fragilis, has been found ...
They also remove phosphorus in the form of P2O5 at the rate of 0.25 pound per bushel (1 bushel = 38 pounds at 12% moisture).[ ...
Mature serrano pepper plants reach a height of 0.5 to 1.5 m (1.5 to 5.0 ft) tall.[1] Each plant can hold up to 50 pepper pods.[1] The fruit can be harvested while they are green or ripe. Unripe serrano peppers are green, but the color varies at maturity; common colors for the ripe fruit are green, red, brown, orange, and yellow. Serrano peppers do better in soils with a pH between 7.0 and 8.5 in warm temperatures above 75°F (24°C), with a low tolerance for frost.[2] ...
In West Asia, myrobalan plum or cherry plum (Prunus cerasifera) is also widely cultivated. In Russia, apart from these three commonly cultivated species, there are also many cultivars resulting from hybridization between Japanese plum and myrobalan plum, known as Russian plum (Prunus × rossica).[16] When it flowers in the early spring, a plum tree will be covered in blossoms, and in a good year approximately 50% of the flowers will be pollinated and become plums. Flowering starts after 80 growing degree days.[citation needed] If the weather is too dry, the plums will not develop past a certain stage, but will fall from the tree while still tiny, green buds, and if it is unseasonably wet or if the plums are not harvested as soon as they are ripe, the fruit may develop a fungal condition called brown rot. Brown rot is not toxic, and some affected areas can be cut out of the fruit, but unless the rot is caught immediately, the fruit will no longer be edible. Plum is used as a food plant by the ...
Black, red, and white mulberry are widespread in southern Europe, the Middle East, northern Africa and Indian subcontinent, where the tree and the fruit have names under regional dialects. Jams and sherbets are often made from the fruit in this region. Black mulberry was imported to Britain in the 17th century in the hope that it would be useful in the cultivation of silkworms. It was much used in folk medicine, especially in the treatment of ringworm. Mulberries are also widespread in Greece, particularly in the Peloponnese, which in the Middle Ages was known as Morea, deriving from the Greek word for the tree (μουριά, mouria).. Mulberries can be grown from seed, and this is often advised as seedling-grown trees are generally of better shape and health, but they are most often planted from large cuttings which root readily. The mulberry plants which are allowed to grow tall with a crown height of 1.5 to 1.8 metres (5 to 6 ft) from ground level and a stem girth of 10-13 cm (4-5 in). They ...
... made from sugar beets differs from sugarcane molasses. Only the syrup left from the final crystallization stage is called molasses. Intermediate syrups are called high green and low green, and these are recycled within the crystallization plant to maximize extraction. Beet molasses is 50% sugar by dry weight, predominantly sucrose, but contains significant amounts of glucose and fructose. Beet molasses is limited in biotin (vitamin H or B7) for cell growth; hence, it may be supplemented with a biotin source. The nonsugar content includes many salts, such as calcium, potassium, oxalate, and chloride. It contains betaine and the trisaccharide raffinose. These are a result of concentration from the original plant material or chemicals in processing, and make it unpalatable to humans. So, it is mainly used as an additive to animal feed (called "molassed sugar beet feed") or as a fermentation feedstock.. Extracting additional sugar from beet molasses is possible through molasses ...
Why Phosphorus. Without phosphorus, we cannot produce food. As an essential nutrient in fertilisers, phosphorus ensures the ... Launched: International Phosphorus Task Team * Announced: 5th Sustainable Phosphorus Summit to take place in Kunming, China, ... Without phosphorus, we cant produce food. Phosphorus is as essential as water, carbon or oxygen ... Phosphorus is mis-managed: Four-fifths is lost or wasted in the supply-chain from mine to field to fork ...
Phosphorus was a town of ancient Thrace, inhabited during Roman times.[1] ... Retrieved from "" ...
Monoclinic phosphorus, or violet phosphorus, is also known as Hittorfs metallic phosphorus.[10][11] In 1865, Johann Wilhelm ... Ring-shaped phosphorus[edit]. Ring-shaped phosphorus was theoretically predicted in 2007.[30] The ring-shaped phosphorus was ... Red phosphorus exists as an amorphous network. Upon further heating, the amorphous red phosphorus crystallizes. Red phosphorus ... This combustion gives phosphorus (V) oxide: P. 4 + 5 O. 2 → P. 4O. 10. Because of this property, white phosphorus is used as a ...
Doctors may order a phosphorus blood test to help diagnose or monitor kidney disorders, calcium and bone problems, or other ... What Is a Phosphorus Test?. A phosphorus test measures the amount of phosphorus in the blood. Phosphorus is a mineral that ... Why Are Phosphorus Tests Done?. A phosphorus test may be done if a child has a medical condition that makes high or low ... Are There Any Risks From Phosphorus Tests?. A phosphorus test is a safe procedure with minimal risks. Some kids might feel ...
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... pentasulfide (P2S5)*. Phosphorus pentoxide (P2O5)*. Phosphorus sesquisulfide (P4S3)*Phosphorus tribromide (PBr3)* ... phosphorus chlorides and the two phosphorus sulfides: phosphorus pentasulfide, and phosphorus sesquisulfide. Organophosphorus ... Red phosphorus is formed by heating white phosphorus to 250°C (482°F) or by exposing white phosphorus to sunlight.. Due to its ... Phosphorus. 2007 Schools Wikipedia Selection. Related subjects: Chemical elements. 15. silicon ← phosphorus → sulfur. ...
... circulation of phosphorus in various forms through nature. Of all the elements recycled in the biosphere, phosphorus is the ... Phosphorus cycle, circulation of phosphorus in various forms through nature. Of all the elements recycled in the biosphere, ... nitrogen and phosphorus cyclesAn overview of the nitrogen and phosphorus cycles in the biosphere.. Encyclopædia Britannica, Inc ... biosphere: The cycling of phosphorus and other essential nutrients. Most other major nutrients such as phosphorus, potassium, ...
CHEBI:30334 - phosphorus trichloride. Main. ChEBI Ontology. Automatic Xrefs. Reactions. Pathways. Models. ...
... looks at the significance of phosphorus in an historical context. ... looks at the significance of phosphorus in an historical ... Chemhistory: phosphorus Description. Professor Alan Dronsfield, chair of the Royal Society of Chemistrys Historical Group, ... Professor Alan Dronsfield, chair of the Royal Society of Chemistrys Historical Group, looks at the significance of phosphorus ... Professor Alan Dronsfield, chair of the Royal Society of Chemistrys Historical Group, looks at the significance of phosphorus ...
White phosphorus has been found in at least 77 of the 1,416 National Priorities List sites identified by the Environmental ... Exposure to white phosphorus may cause burns and irritation, liver, kidney, heart, lung, or bone damage, and death. ... White phosphorus is a waxy solid which burns easily and is used in chemical manufacturing and smoke munitions. ... What is white phosphorus?. White phosphorus is a colorless, white, or yellow waxy solid with a garlic-like odor. It does not ...
Phosphorus pentachloride. CAS No: 10026-13-8. NOTE:. (1) Efficacy of Medical Tests has not been evaluated.. (2) NIOSH ... Phosphorus pentachloride. Editor(s). /Author(s). Specific Medical Test(s) or Examination(s). Reference(s). ...
White phosphorus is used industrially to manufacture chemicals used in fertilizers, food additives, and cleaning compounds. ... White phosphorus is a toxic substance produced from phosphate-containing rocks. ... Phosphorus, white, dry (1381). Phosphorus, white, under water (1381). Phosphorus, white, in solution (1381). Phosphorus, yellow ... Phosphorus, yellow, under water (1381). Phosphorus, yellow, in solution (1381). Phosphorus, white, molten (2447) ...
In the journal Angewandte Chemie, scientists have now introduced a new, interesting variant: a phosphorus-containing rubber ... This means that only a few phosphorus atoms are incorporated into the polymer backbone. The majority of the phosphorus atoms ... Phosphorus rubber. Wiley. Journal. Angewandte Chemie International Edition. Funder. Natural Sciences and Engineering Research ... Starting with phosphorus-containing precursors, the team was able to synthesize the first examples of poly(1-phospha-isoprene) ...
Toxicological Profile for White Phosphorus. CAS#: 7723-14-0. Toxicological Profile Information. The ATSDR toxicological profile ...
Take a short look at a low cost phosphorus removal water filter the USGS has been working on for several years. ... thereby closing the phosphorus recycle loop and regenerating the ochre media for another cycle of use. ...
Our results highlight the need for a better understanding of the mechanisms of phosphorus enrichment, and for a stronger focus ... Here we show that many more endangered plant species persist under phosphorus-limited than under nitrogen-limited conditions, ... In the 274 sites examined, many more endangered plant species persist under phosphorus-limited than nitrogen-limited conditions ... so extra phosphorus is the more likely to cause species loss. Conservation policies biased towards reducing nitrogen enrichment ...
If you would like to schedule an appointment with one of our nationally ranked specialists or Primary Care physicians please click or call 800-881-7385.. ...
i. DIP - (,5%) dissolved inorganic phosphorus -- PO43- polyphosphates ii. DOP - dissolved organic phosphorus -- often ... NUTRIENT CYCLING AND PHOSPHORUS. I. General Principles of Nutrient cycling A. Energy versus nutrients Energy flows Nutrients ... PHOSPHORUS I. Importance -- Why study P? A. Biomolecules ADP and ATP, nucleic acids, phospholipids (membranes), apatite (bones ... Measurement of phosphorus - soluble reactive phosphate (SRP) and scientists long thought this was PO43- - Unreactive phosphate ...
This Phosphorus page on EmpowHER Womens Health works best with javascript enabled in your browser.. Toggle navigation Womens ... The mineral phosphorus is an essential part of the diet. In the human body, it is almost always found in an oxidized form known ... It is also possible that ongoing intake of phosphorus at high levels may impair absorption of copper. , iron. and zinc. . 8. ... Dietary reference intakes for calcium, phosphorus, magnesium, vitamin D and fluoride. Washington, DC: National Academy Press, ...
... is one of the key nutrients our body uses to maintain proper pH. In fact, the phosphorus buffer system is one of the ... Phosphorus also floats around inside of every cell in a form referred to as a "phosphate anion." This form of phosphorus is ... Like the role of dietary phosphorus in support of ATP, the role of dietary phosphorus in support of acid-base balance does not ... In fact, we have seen studies where the ratio of calcium to phosphorus also teeter-totters in favor of phosphorus without ...
... blue phosphorus (41), phosphorus nanotubes (42), phosphorus nanoribbons (43⇓⇓⇓-47), and stacked bilayer phosphorus (48)] to ... 2007) [email protected] phosphorus: An easy access to black phosphorus. Inorg Chem 46(10):4028-4035. ... 2014) Formation of stable phosphorus-carbon bond for enhanced performance in black phosphorus nanoparticle-graphite composite ... 2014) Black phosphorus-monolayer MoS2 van der Waals heterojunction p-n diode. ACS Nano 8(8):8292-8299. ...
Category:Phosphorus-oxygen compounds (en); Kategori:Sambindingar med fosfor og oksygen (nn); Category:磷-氧化合物 (zh) categoría de ... Media in category "Phosphorus-oxygen compounds". The following 10 files are in this category, out of 10 total. ... Retrieved from "" ...
Phosphorus sun demonstration Experiment Phosphorus sun demonstration video Video Duration : 00:04:57 time (hh:mm:ss) Phosphorus ... Exhibition Chemistry: Phosphorus sun Description. This demonstration is ideal for use with lessons on periodicity. Lower school ...
A phosphorus test looks at levels of phosphorus in a persons blood. Find out why doctors do this test and whats involved for ... What Is a Phosphorus Test?. A phosphorus test measures the amount of phosphorus in the blood. Phosphorus is a mineral that ... Why Are Phosphorus Tests Done?. A phosphorus test might be done if someone has a medical condition that makes high or low ... Are There Any Risks From Phosphorus Tests?. A phosphorus test is a safe procedure with minimal risks. Some people might feel ...
Phosphorus is a mineral that makes up 1% of a persons total body weight. It is the second most abundant mineral in the body. ... Whole-grain breads and cereals contain more phosphorus than cereals and breads made from refined flour. However, the phosphorus ... Phosphorus is a mineral that makes up 1% of a persons total body weight. It is the second most abundant mineral in the body. ... High levels of phosphorus in blood only occur in people with severe kidney disease or severe dysfunction of their calcium ...
Phosphorus content 156 works Search for books with subject Phosphorus content. Search. ... Water, Soils, Pollution, Nitrogen content, Phosphorus, Water quality, Accessible book, Environmental aspects, Environmental ... Are you sure you want to remove Phosphorus content from your list? ... aspects of Phosphorus, Purification, Phosphatic fertilizers, Nutrient pollution of water, Sewage, Eutrophication, Lakes, ...
Environmental: Detection of elemental phosphorus in environmental samples, as determined by NIOSH, and an elevated phosphorus ... Phosphorus. In: Harbison RD, ed. Hamilton and Hardys industrial toxicology. 5th ed. St Louis, MO: Mosby-Year Book; 1998:194-7 ... Biologic: No specific test for elemental white or yellow phosphorus is available; however, an elevated serum phosphate level ... Ingestion of elemental white or yellow phosphorus typically causes severe vomiting and diarrhea, which are both described as " ...
Synonyms: Phosphorus Oxide; Phosphoric Anhydride; Phosphorus pentaoxide CAS No.: 1314-56-3 Molecular Weight: 141.94 Chemical ... Phosphorus oxides may form when heated to decomposition. Hazardous Polymerization: Will not occur. Incompatibilities: Ammonia, ... PHOSPHORUS PENTOXIDE. MSDS Number: P4116 --- Effective Date: 12/08/96. 1. Product Identification. ... Proper Shipping Name: PHOSPHORUS PENTOXIDE Hazard Class: 8 UN/NA: UN1807 Packing Group: II Information reported for product/ ...
Naude, S.M.; Verleger, H., The perturbations in the ultraviolet band spectrum of the phosphorus molecule P2, Phys. Rev., 1950, ... Carroll, P.K.; Mitchell, P.I., The absorption spectrum of diatomic phosphorus between 1370 and 600 A, Proc. Roy. Soc. London A ... Verma, R.D.; Broida, H.P., Spectral study of the phosphorus glow, Can. J. Phys., 1970, 48, 2991. [all data] ... Gingerich, K.A.; Cocke, D.L.; Kordis, J., Gaseous phosphorus compounds. X. Mass spectrometric determination of the dissociation ...
Other names: PF3; Phosphorus(III) fluoride; Phosphorous-trifluoride-; Phosphorus fluoride; Phosphorous fluoride; TL 75; ...
  • Microorganisms produce acids that form soluble phosphate from insoluble phosphorus compounds . (
  • In soil, white phosphorus may stick to particles and be changed within a few days to less harmful compounds. (
  • White phosphorus is used industrially to manufacture chemicals used in fertilizers, food additives, and cleaning compounds. (
  • Reduced oxidation state P compounds include the phosphonates, characterized by C−P bonds, which bear up to 25% of total organic dissolved phosphorus. (
  • Comprising 10-20% of the total dissolved P inventory in Florida environments, reduced P compounds could hence be a critical part of the phosphorus biogeochemical cycle, and in turn may impact global carbon cycling and methanogenesis. (
  • Francois MR, Stephen F. Phosphorus Compounds. (
  • Due to the essential nature of phosphorus to living organisms, the low solubility of natural phosphorus-containing compounds, and the slow natural cycle of phosphorous, the agricultural industry is heavily reliant on fertilizers which contain phosphate, mostly in the form of superphosphate of lime . (
  • The vast majority of phosphorus compounds mined are consumed as fertilisers. (
  • As comets most probably delivered large amounts of organic compounds to the Earth, the phosphorus monoxide found in Comet 67P/C-G may strengthen the link between comets and life on Earth. (
  • This study takes one of Rosetta's major results regarding prebiotic compounds - the detection of phosphorus, in this case - and digs further into the data," says Matt Taylor, ESA Rosetta project scientist. (
  • Reactivity of P-H Group of Phosphorus Based Compounds bridges the gap between inorganic and organic phosphorus compounds, providing a basis to explore the myriad possibilities for synthesis of novel low and high molecular phosphorus-containing compounds. (
  • For references , please go to or scan the QR code. (
  • The map shows the mean annual concentration of total phosphorus (TP), expressed as milligrams of TP per litre of water, observed in lakes and reservoirs monitoring stations and reported by EEA member countries via WISE. (
  • Total phosphorus includes all phosphorus components in water: phosphate, dissolved organic phosphorus and particulate phosphorus in algal and bacterial cells, as well as in mineral particles (e.g. clay). (
  • High or increased (compared to reference condition) concentration of total phosphorus represents a risk to normal functioning of lake ecosystems, causing eutrophication with potentially harmful or toxic algal blooms in the surface waters, reduced biodiversity, and oxygen deficiency in the bottom waters. (
  • The purpose of the map is to provide an overview of the mean annual value of total phosphorus in lakes and reservoirs across Europe and to enable the user to compare values per country, River Basin District (RBD) or individual monitoring station, depending on the scale of visualisation. (
  • Shimadzu's TNPC-4110 Series online analyzers are capable of measuring Total Nitrogen (TN) and Total Phosphorus (TP) in water. (
  • In some cases, the wastewater treatment plants (WWTPs) also have had moderate total phosphorus (TP) limits, in the range of 0.5 to 2 mg/L. More recently, some WWTPs are required to meet very low TN and TP limits simultaneously. (
  • For military applications, see white phosphorus munitions . (
  • White phosphorus is a waxy solid which burns easily and is used in chemical manufacturing and smoke munitions. (
  • If you work in industries that use or manufacture white phosphorus or munitions containing white phosphorus. (
  • White phosphorus munitions are intended to burn or firebomb the opponents, in other words, to effectively produce widespread damage but not kill the enemy. (
  • Jerusalem) - Israel should strengthen an announced reduction of its military use of white phosphorus munitions by banning all use of "air-burst" white phosphorus munitions in populated areas without exception. (
  • On May 13, 2013, the Israeli Supreme Court heard a petition by Israeli human rights and other civil society groups seeking a ban on the Israel Defense Forces' use of certain white phosphorus munitions in populated areas. (
  • It's good the Israeli military has decided at last to reduce its use of white phosphorus munitions, which are indiscriminate when air-burst in urban areas," said Sarah Leah Whitson , Middle East director at Human Rights Watch. (
  • But the military said that until it developed alternative munitions, its use of white phosphorus to screen Israeli troops during hostilities "may be expected in future military operations as the need arises. (
  • However, the use in populated areas of "air-burst" white phosphorus munitions, which spread burning wedges of the toxic substance over large areas, violates the laws of war prohibition against attacks that cannot discriminate between civilians and combatants, Human Rights Watch said. (
  • During fighting in the Gaza Strip in 2008-2009, Israeli forces repeatedly used air-burst white phosphorus munitions from 155 mm artillery over populated areas. (
  • In 2011, 117 Israeli individuals, human rights groups and other civil society groups petitioned the Supreme Court to require Israel's military "to prohibit the use… in populated areas" of munitions that air-burst white phosphorus. (
  • Since most exposures to white phosphorus occur in the military setting with the use of munitions, a history frequently is obtained easily. (
  • Be aware of unconscious individuals with a history of percussion injuries from white phosphorus-containing munitions, who may pose an exposure hazard to the health care provider. (
  • Environmental risk assessment of white phosphorus from the use of munitions - a probabilistic approach. (
  • [ 1 ] Because of its reactivity, white phosphorus has been used as an incendiary agent by the military or as an igniter for munitions. (
  • Munitions-quality white phosphorus is generally found as a waxy, yellow, transparent solid. (
  • White phosphorus munitions aren't banned, but because they spread a burning substance over a large area, they are particularly dangerous to civilians. (
  • Third, there is no flash of an explosive bursting charge, no instantaneous uniform ignition of the substance, both characteristic of white phosphorus munitions. (
  • White phosphorus munitions can legally be used on battlefields to make smoke screens, generate illumination, mark targets or burn bunkers and buildings. (
  • White phosphorus , yellow phosphorus or simply tetraphosphorus (P 4 ) exists as molecules made up of four atoms in a tetrahedral structure. (
  • For this reason it is also called yellow phosphorus. (
  • Therefore, it is also known as yellow phosphorus. (
  • Ingestion of elemental white or yellow phosphorus typically causes severe vomiting and diarrhea, which are both described as "smoking," "luminescent," and having a garlic-like odor. (
  • A clinically compatible case in which a high index of suspicion (credible threat or patient history regarding location and time) exists for elemental white or yellow phosphorus exposure, or an epidemiologic link exists between this case and a laboratory-confirmed case. (
  • Acute yellow phosphorus poisoning: smoking stool syndrome. (
  • An evaluation of childhood deaths in Turkey due to yellow phosphorus in firecrackers. (
  • Türkmen Şamdanci E, Çakir E, Şahin N, Elmali C, Sayin S. Clinical and Pathological Findings on Intoxication by Yellow Phosphorus After Ingesting Firework Cracker: A Rare Case of Autopsy. (
  • White (or yellow) phosphorus is the most common and most reactive of the three allotropic forms of phosphorus. (
  • For this reason, white phosphorus that is aged or otherwise impure (e.g., weapons-grade, not lab-grade WP) is also called yellow phosphorus. (
  • The most important commercial use of phosphorus-based chemicals is the production of fertilizers . (
  • Because of the steady diversion of phosphorus into the oceans, the element must be added (in fertilizers) to soils to maintain fertility and agricultural productivity. (
  • Most fertilizers use phosphorus. (
  • A team of researchers from the Massachusetts Institute of Technology has recently announced a new, safer method to handle phosphorus - a chemical element which is a critical ingredient in fertilizers, pesticides, detergents, and other industrial and household chemicals. (
  • Phosphorus is used to make matches, fireworks, and fertilizers and to protect metal surfaces from corrosion. (
  • Concentrated phosphorus fertilizers are disclosed that comprise a buffered composition of an organic acid and salts thereof and a phosphorous-containing acid and salts thereof. (
  • The concentrated phosphorus fertilizers can be diluted with water of pH ranging from about 6.5 to about 8.5 at ratios of concentrate. (
  • The concentrated phosphorus fertilizers can be diluted with water of pH ranging from about 6.5 to about 8.5 at ratios of concentrate to water at about 1:40 to about 1:600 to result in a fertilizer having a pH in the range acceptable for foliar uptake of phosphorus. (
  • Since 2014, Cyprus Export of Nitrogen-Phosphorus-Potassium Fertilizers jumped by 4.2% year on year. (
  • In 2019, the country was number 87 comparing other countries in Export of Nitrogen-Phosphorus-Potassium Fertilizers at $63,398.58. (
  • Since 2014, Latvia Import of Nitrogen-Phosphorus-Potassium Fertilizers increased 3.6% year on year. (
  • With $76,015,832.89 in 2019, the country was ranked number 28 comparing other countries in Import of Nitrogen-Phosphorus-Potassium Fertilizers. (
  • Most prepared synthetic fertilizers sold in garden stores are made up of a mixture of nitrogen (N), phosphorus (P), and potassium (K). The amount of each element in NPK fertilizers is indicated by numbers that refer to the percentages of the elements contained in the mix by weight, so a 4-3-3 NPK fertilizer is 4 percent nitrogen, 3 percent phosphorus, and 3 percent potassium. (
  • However, the agricultural industry is the largest user of phosphorus in the form of fertilizers . (
  • Red phosphorus may be formed by heating white phosphorus to 300 °C (572 °F) in the absence of air or by exposing white phosphorus to sunlight . (
  • Red phosphorus is formed by heating white phosphorus to 250°C (482°F) or by exposing white phosphorus to sunlight. (
  • A phosphorus test measures the amount of phosphorus in the blood. (
  • In fact, it would be difficult to design a WHFoods-based diet that would meet your calorie needs yet somehow fail to provide you with the amount of phosphorus that you need. (
  • Greaves and fellow Cardiff astronomer Phil Cigan are presenting new research at the European Week of Astronomy and Space Science in Liverpool that compares the amount of phosphorus in the stellar dust of two supernova remnants- Cassiopeia A (Cas A) in the constellation Cassiopeia, and the Crab Nebula in the constellation Taurus. (
  • Pork chops contain the least amount of phosphorus, while pork tenderloin contains the most. (
  • [4] White phosphorus in the gaseous state and as waxy solid consists of reactive P4 molecules. (
  • Atoms of phosphorus are highly reactive. (
  • Is a chemical element of atomic number 15, a poisonous, combustible nonmetal that exists in two common allotropic forms, white phosphorus , a yellowish waxy solid that ignites spontaneously in air and glows in the dark, and red phosphorus , a less reactive form used in making matches. (
  • Active filtration, where effluent is passed through a reactive substrate such as steel slag, offers a simple and cost-effective option for removing phosphorus (P) from effluent. (
  • Black phosphorus is made of even larger aggregates and is the least reactive allotrope. (
  • Phosphorus is a highly-reactive non- metallic element (sometimes considered a metalloid) with two primary allotropes, white phosphorus and red phosphorus its black flaky appearance is similar to graphitic carbon . (
  • Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth. (
  • White phosphorus is the least stable, the most reactive, the most volatile, the least dense, and the most toxic of the allotropes. (
  • However, the phosphorus that was first used in cells to transfer energy, and spark reproductive life, likely came after the planet formed and had large bodies of water, as meteorites bearing phosphorous crashed into the wet parts of the world. (
  • Each air-burst shell spread 116 burning white phosphorus wedges in a radius extending up to 125 meters from the blast point, depending on conditions and the angle of attack.In the six cases that Human Rights Watch investigated, Israeli white phosphorous attacks killed twelve civilians, including three women and seven children. (
  • In the phosphorous cycle, phosphorus passes quickly through food webs as it moves from land to ocean sediments, then back to the lands. (
  • 2. The concentrated phosphorus fertilizer according to claim 1 , wherein said phosphorous source is a member selected from the group consisting of a phosphorous-containing acid, a salt of a phosphorous-containing acid, and combinations thereof. (
  • 4. The concentrated phosphorus fertilizer according to claim 1 , wherein the quantity of said phosphorous source is sufficient so that said concentrated phosphorus fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 . (
  • Phosphorous was first recognized as an element by Hennig Brand in 1669 its name ( phosphorus mirabilis , or "bearer of light") was inspired from the brilliant glow emitted by its distillation. (
  • The odour of combustion of this form has a characteristic garlic smell, and samples are commonly coated with white " diphosphorus pentoxide ", which consists of P 4 O 10 tetrahedral with oxygen inserted between the phosphorus atoms and at their vertices. (
  • phosphorus pentoxide. (
  • Phosphorus pentoxide reacts with moisture on body tissue surfaces to form phosphoric acid, which approximates sulfuric acid and hydrochloric acids in corrosive intensity. (
  • When exposed to air, it spontaneously ignites and is oxidized rapidly to phosphorus pentoxide. (
  • Organic phosphorus fertilizer can be found in composted animal manure or in ground-up animal remains left over from food production and usually sold as bone meal . (
  • Depending on soil conditions like pH, temperature, and other available nutrients, plants are able to make use of synthetic or organic phosphorus to varying degrees. (
  • Finally, with a few very notable exceptions, all cells contain a nucleus, and inside of the nucleus are genetic materials including RNA and DNA that both contain phosphorus in their chemical structure. (
  • Dipeptide mimics which contain phosphorus and their pharmaceutical use and preparation are disclosed. (
  • The study points out that although many natural animal and vegetable proteins contain phosphorus, in the US it is often added to processed foods to enhance the flavor and extend the shelf-life. (
  • In 2010, it became illegal in Virginia to sell dishwasher detergents that contain phosphorus. (
  • Due to its high reactivity, phosphorus is never found as a free element in nature. (
  • Because of its high reactivity, phosphorus exists in combined form with other elements. (
  • Because of its high reactivity with oxygen in air, white phosphorus is generally stored under water. (
  • The similar properties of double bonds between carbon atoms (C=C) and phosphorus-carbon double bonds (P=C) led to the idea to try general polymerization techniques on the latter. (
  • This means that only a few phosphorus atoms are incorporated into the polymer backbone. (
  • The majority of the phosphorus atoms form side chains in which the P=C double bonds are maintained, leaving them available for further reactions or alterations to the polymers. (
  • Black P is a single-elemental layered crystalline material consisting of only phosphorus atoms ( 9 ). (
  • White phosphorus and yellow arsenic both have four atoms arranged in a tetrahedral structure in which each atom is bound to the other three atoms by a single bond. (
  • A reaction with oxygen takes place at the surface of the solid (or liquid) phosphorus, forming short-lived molecules HPO and P 2 O 2 and they both emit visible light. (
  • White phosphorus reacts rapidly with oxygen, easily catching fire at temperatures 10 to 15 degrees above room temperature. (
  • In the air, white phosphorus reacts rapidly with oxygen to produce relatively harmless chemicals within minutes. (
  • In water, white phosphorus reacts with oxygen within hours or days. (
  • In water with low oxygen, white phosphorus may degrade to a highly toxic compound called phosphine, which eventually evaporates to the air and is changed to less harmful chemicals. (
  • In deep soil or sediments with little oxygen, white phosphorus may remain unchanged for many years. (
  • From a physiological and biochemical perspective, the cell membrane consists of a "phospholipid bilayer"-two rows of molecules composed primarily of fats (lipids) and phosphorus (in a special form called "phosphate" that involves a combination of phosphorus with oxygen and hydrogen). (
  • In fact, the main crystalline structure in bone, called hydroxyapatite, consists of phosphorus, calcium, oxygen, and hydrogen, and calcium and phosphorus are so important in formation of hydroxyapatite that it is often referred to as a "calcium phosphate" molecule. (
  • This collaboration work demonstrated experimentally white phosphorus can be filled into single wall carbon nanotubes (SWCNTs) from the liquid and thereby stabilized against the highly exothermic reaction with atmospheric oxygen. (
  • White phosphorus generates a dense white smoke and ignites on contact with oxygen. (
  • Most of the earth's phosphorus is bonded to oxygen molecule as phosphate (PO 4 3- ). (
  • Phosphorus can cause blooms of blue green algae and other unwanted aquatic plants that deplete the oxygen in water and compete with other wildlife. (
  • White phosphorus emits a faint glow when exposed to oxygen - hence the name, taken from Greek mythology, Φωσφόρος meaning "light-bearer" (Latin Lucifer), referring to the "Morning Star", the planet Venus. (
  • When exposed to oxygen, white phosphorus glows in the dark with a very faint tinge of green and blue. (
  • The astronomers have also shown that phosphorus monoxide, which combines phosphorus with one oxygen atom, is the most abundant phosphorus-bearing molecule in the cavity walls of this particular star-forming region. (
  • Excessively high levels of phosphorus in the blood, although rare, can combine with calcium to form deposits in soft tissues, such as muscle. (
  • High levels of phosphorus in blood only occur in people with severe kidney disease or severe dysfunction of their calcium regulation. (
  • A phosphorus test looks at levels of phosphorus in a person's blood. (
  • Also explain that elevated levels of phosphorus may contribute to the calcification -- and to the risk of cardiovascular events. (
  • A multiple variable model to assess the prevalence of calcification determined that independent predictors were greater baseline calcification scores, older age, male sex, higher levels of phosphorus, lower levels of high-density lipoprotein cholesterol, and lower estimated glomerular filtration rates. (
  • Not only do 75 of our foods rank as excellent, very good, or good sources of this mineral, but you can also find ranked sources of phosphorus in every single one of our food groups. (
  • Phosphorus in particular is a critical resource with wide ranging applications, yet natural sources of phosphorus are dwindling. (
  • Summary Chicken and turkey are both excellent sources of phosphorus, especially the light meat. (
  • Many types of seafood are good sources of phosphorus. (
  • Summary Low-fat dairy products like milk, cottage cheese and yogurt are excellent sources of phosphorus, providing at least 30% of the RDI per serving. (
  • White phosphorus is a translucent waxy solid that quickly becomes yellow when exposed to light. (
  • White phosphorus is a colorless, white, or yellow waxy solid with a garlic-like odor. (
  • Pure white phosphorus is a colorless-to-white waxy solid, but commercial white phosphorus is usually yellow. (
  • Phosphorus is an important nutrient for living organisms. (
  • This Public Health Statement is the summary chapter from the Toxicological Profile for White Phosphorus . (
  • Most other major nutrients such as phosphorus, potassium, magnesium, iron, and calcium enter terrestrial communities through the weathering of bedrock. (
  • Fortunately, very few nutrients are as widely available throughout our WHFoods as phosphorus. (
  • DUFFIN: She asked them to donate urine because urine is packed with valuable nutrients, in particular phosphorus. (
  • As environmental and sustainability concerns mount around the globe, biosolids, full of a variety of nutrients such as nitrogen, phosphorus and carbon, are now viewed as a resource too valuable to waste. (
  • But you can't get them," he continued, "because they say the water's polluted" with phosphorus and other nutrients that, in excess, can wreak havoc on waterways, including Chesapeake Bay tributaries like the Pagan. (
  • Efforts are underway to curtail runoff, including a controversial Chesapeake restoration plan, but phosphorus and other nutrients continue to degrade water quality in Hampton Roads and beyond. (
  • Phosphorus (P) is one of the nutrients causing eutrophication in many of our waterways. (
  • This is true to an extent, but without other nutrients, large doses of high phosphorus fertilizer do not have a significant effect on roots. (
  • Our results highlight the need for a better understanding of the mechanisms of phosphorus enrichment, and for a stronger focus on conservation management to reduce phosphorus availability. (
  • That would be the rules known as the 'Phosphorus Management Tool' intended to reduce phosphorus pollution, which is commonly the result of excess poultry manure. (
  • What those recent studies show is that the last decade of efforts to reduce phosphorus has not yielded much positive result and that there are some rivers where pollution levels have actually gone up over time. (
  • Supporters believe the state won't be able to meet its commitment to significantly reduce phosphorus pollution under the U.S. Environmental Protection Agency's 'pollution diet' without getting tougher on farmers. (
  • Dry heat cooking preserves 90% of the phosphorus, while boiling can reduce phosphorus levels by roughly 25% ( 8 ). (
  • Elemental phosphorus can exist in several allotropes , the most common of which are white and red solids. (
  • [3] Elemental phosphorus is then liberated as a vapour and can be collected under phosphoric acid . (
  • Although phosphate production is a by-product of elemental phosphorus metabolism in humans, a normal phosphate concentration does not rule out an elemental phosphorus exposure. (
  • Detection of elemental phosphorus in environmental samples, as determined by NIOSH, and an elevated phosphorus level in food, as determined by FDA, might also indicate that an exposure has occurred. (
  • Acute elemental phosphorus poisoning in man: cardiovascular toxicity. (
  • Elemental phosphorus was first isolated as white phosphorus in 1669. (
  • Elemental phosphorus was first isolated from human urine, and bone ash was an important early phosphate source. (
  • From the perspective of applications and chemical literature, the most important form of elemental phosphorus is white phosphorus, often abbreviated as WP. (
  • In addition to its role as a structural component, your dietary phosphorus can also play a couple other key roles in the complex metabolism of bone. (
  • 1 ) We need phosphorus to keep our metabolism running smoothly and help boost energy levels due to its help in the production of adenosine triphosphate (ATP), the body's primary source of "energy. (
  • Phosphorus and phosphate ions play an important role in cellular metabolism as well as bone structure. (
  • FGF-23 and MEPE) constituents of the phosphorus metabolism pathway. (
  • The outcome will potentially aid understanding of this new field of mineral regulating hormones and generate both interest and research in phosphorus metabolism. (
  • The discovery of phosphorus is credited to Dr. Henning Brand in 1669, Brand experimented with urin, which contains phosphates from normal metabolism. (
  • DUFFIN: The letter P is, coincidentally, the symbol for phosphorus on the periodic table. (
  • phosphorus (symbol P ) Common nonmetallic element of group V of the periodic table , discovered in 1669 by German alchemist Hennig Brand (born c. 1630). (
  • Unlike other elements in group VA of the periodic table , phosphorus is never found as a pure element in nature, but only in combination with other elements. (
  • Because phosphorus is just below nitrogen in the periodic table , the two elements share many of their bonding characteristics. (
  • First, dietary phosphorus can influence the production of bone by helping with phosphorylation-a chemical process by which phosphorus is linked to an amino acid-of signaling proteins that stimulate bone growth. (
  • In the past, white phosphorus was used to make matches, but another chemical with fewer harmful health effects has since replaced it. (
  • And because of its chemical composition, the phosphorus in processed foods - which accounts for about 30% of all the phosphorus consumed in the American diet - and animal proteins is more easily absorbed in the body than plant phosphorus. (
  • White phosphorus skin exposure results in painful chemical burn injuries. (
  • Because it has legal uses, white phosphorus is not banned as a chemical weapon under international conventions, but it can cause serious burns and start fires. (
  • Metrohm Process Analytics presents the 2035 Process Analyzer, an integrated solution for 24/7 online-monitoring of critical chemical parameters such as ortho- and total phosphate phosphorus in wastewater streams. (
  • Phosphorus is a chemical element with the atomic number Z = 15. (
  • Phosphorus and arsenic share many chemical properties. (
  • The combination of the ALMA and ROSINA data has revealed a sort of chemical thread during the whole process of star formation, in which phosphorus monoxide plays the dominant role," explains Víctor. (
  • Phosphorus mononitride is an inorganic compound with the chemical formula PN. (
  • Priscila S. S. Pereira (2009), "A quantum chemical study on the formation of phosphorus mononitride", Chemical Physics, 363 (1-3): 49-58, Bibcode:2009CP. (
  • Small amounts of white phosphorus were used in the past in pesticides and fireworks. (
  • We do not know what the effects are from eating or drinking very small amounts of white phosphorus-containing substances over long periods of time. (
  • A diet that includes the right amounts of calcium and protein will also provide enough phosphorus. (
  • Fruits and vegetables contain only small amounts of phosphorus. (
  • Small amounts of white phosphorus have been used as rat and roach poisons and in fireworks. (
  • As a naturally occurring mineral that is found in large quantities in the environment, we acquire it primarily from phosphorus-rich foods but also in small amounts from the water we drink. (
  • It is created in trace amounts in some stars' natural evolution, but the majority of the universe's phosphorus is fused in supernovae. (
  • The discrepancy comes as a surprise, as computer models suggested the two collections of stellar dust, created by the same type of supernova, should contain similar amounts of phosphorus. (
  • Another possibility is that the age difference between the two clouds of cosmic dust could explain the different amounts of phosphorus. (
  • In other cases, Israeli forces used air-burst white phosphorus on the edges of populated areas, perhaps as an obscurant to mask the movement of its forces, but substantial amounts of white phosphorus landed up to a few hundred meters inside residential areas. (
  • Phosphorus deficiency is rare in developed countries, as most adults eat more than the recommended amounts every day ( 3 , 4 ). (
  • Summary Organ meats are incredibly nutrient-dense, and contain large amounts of phosphorus and other vitamins and minerals. (
  • Sunflower and pumpkin seeds also contain large amounts of phosphorus. (
  • How might I be exposed to white phosphorus? (
  • Is there a medical test to show whether I've been exposed to white phosphorus? (
  • The art show, a juried exhibition with works by artists from Phoenix, Chicago, Portland and Houston, was created in partnership with scientists engaged in the Sustainable Phosphorus Summit, to take place Feb. 3-5, 2011, at ASU. (
  • Scientists will address phosphorus issues at the Sustainable Phosphorus Summit. (
  • Ericka Cero Wood's artwork highlights this week's Sustainable Phosphorus Summit. (
  • The principles of nitrogen and phosphorus removal are discussed, including sources of nitrogen and phosphorus in wastewater, removal options, nitrogen and phosphorus transformations in treatment, process selection, and treatment. (
  • The book also covers the design and operation of nitrogen and phosphorus removal systems, including system options, system design, facility design, facility costs, and operation. (
  • This study investigates the role of filter media, vegetation and a saturated zone (SZ) in achieving co-optimised nitrogen and phosphorus removal in biofilters. (
  • Drinking or swimming in water that has been contaminated with white phosphorus. (
  • Touching soil contaminated with white phosphorus. (
  • Although white phosphorus converts to the thermodynamically more stable red allotrope, the formation of the cubic P 8 molecule is not observed in the condensed phase. (
  • Phosphorus also helps the body make ATP, a molecule the body uses to store energy. (
  • Without phosphorus, there would be no adenosine triphosphate (ATP), which is the molecule cells use to transfer energy. (
  • Phosphorus, like nitrogen, is trivalent in this molecule. (
  • The research also shows how this element is carried in comets and how a particular molecule - phosphorus monoxide - may have played a crucial role in starting life on our planet. (
  • The ROSINA instrument on Rosetta, which collected data at Comet 67P/C-G for over two years, had already found hints of phosphorus at the comet in 2016, but it was not clear what molecule had carried it there. (
  • After the ALMA observations suggested that phosphorus monoxide would be a very likely candidate, ROSINA scientists went back to their data and eventually found evidence of this molecule at Rosetta's comet. (
  • This first sighting of phosphorus monoxide at a comet helps astronomers draw a connection between star-forming regions, where the molecule is created, all the way to our planet. (
  • White phosphorus burns and arsenic inhalation: a toxic combination. (
  • Both phosphorus and arsenic have many allotropes , but only the white and red forms predominate. (
  • At the same time, inefficient use of phosphorus from mine to field to fork is polluting our rivers and oceans, causing toxic algal blooms. (
  • White phosphorus is a toxic substance produced from phosphate-containing rocks. (
  • Phosphorus is generally considered to bear a 5+ oxidation state, but several lower redox states have been reported, including the toxic gas phosphine. (
  • White phosphorus is only slightly soluble in water and can be stored under water. (
  • White phosphorus is highly lipid soluble and, as such, is believed to have rapid dermal penetration once particles are embedded under the skin. (
  • These rocks are ground up and treated in fertilizer factories to make the phosphate (PO 4 - ) in them water-soluble so that phosphate can be directly taken up by plants from the small pool of soluble phosphorus in soils. (
  • The invention discloses a composition comprising (a) soluble creatine, (b) a phosphorus supplement, wherein the phosphorus supplement provides at least 75% of the recommended daily dose of phosphorus value per serving, and (c) a blood buffer, which is preferably citrate and/or (bi)carbonate. (
  • White phosphorus is insoluble in water but soluble in carbon disulfide. (
  • Both the white and red allotropes of phosphorus are insoluble in water. (
  • Scientist David Iwaniec, an urban ecologist at ASU, asserts that the most compelling part of the art show is that it communicates much more than the basics of the phosphorus sustainability issue. (
  • In an analogous way to the nitrogen (N) cycle on the previous page, we will present the basics of the phosphorus (P) cycle related to food production (refer to figure 5.2.4 below in this section) You'll note that the P cycle is a good deal simpler than the N cycle. (
  • Objections to the former menstruum are the length of maceration necessary, which renders extemporaneous preparation difficult, and the great liability to the loss of the ether, and the consequent precipitation of the phosphorus, when the solution is kept. (
  • For the subsequent precipitation of the phosphorus, MgCl 2 is added. (
  • Red phosphorus does not ignite in air at temperatures below 240 °C (464 °F), whereas pieces of white phosphorus ignite at about 30 °C (86 °F). Ignition is spontaneous at room temperature with finely divided material as the high surface area allows the surface oxidation to rapidly heat the sample to the ignition temperature. (
  • The glow of phosphorus is caused by oxidation of the white (but not red) phosphorus - a process now called chemiluminescence. (
  • Previously, HRSD ran wastewater through repeated cycles to remove most phosphorus, a process that corroded pipes, was costly and reduced operating capacity, said Bill Balzer, the plant's manager. (
  • HRSD now sends wastewater to a separate building, where the phosphorus is removed from the water and turned into dry pellets. (
  • ABSATRACTPilot testing of upflow continuous backwash filter (UCB) for tertiary denitrification and phosphorus removal was conducted at the Hagerstown wastewater treatment plant. (
  • ABSTRACT Phosphorus originating from onsite generated wastewater is becoming recognized as a major cause of impairment to streams and lakes. (
  • Depression of the serum calcium level with an elevation in the serum phosphorus level (reversed calcium-phosphorus ratio) with electrocardiographic changes including prolongation of the QT segment, ST-segment depression, T-wave changes, and bradycardia also have been observed. (
  • Experimental models and observational studies have suggested a causative link between hyperphosphatemia and vascular calcification, even when the elevated serum phosphorus level is still within the normal range. (
  • Yesterday, David Hambling and I took a closer look at the allegations Israel struck a U.N. compound with white phosphorus shells. (
  • Shortly after the incident, which was reportedly in response to fire from Hamas militants inside the compound, United Nations Relief and Works Agency spokesman Chris Gunness claimed fires had been started by white phosphorus shells . (
  • The shells, he wrote, may have been standard high explosive - white phosphorus shells only burn a few minutes - and there was plenty of stuff around to catch fire. (
  • The glassy surface was found attributable to catalyst temperature rise and formation of deposits which sinter at low temperatures (high phosphorus content). (
  • Phosphorus fertilizer can be any fertilizer that contains phosphorus, or a fertilizer that has an especially high phosphorus content. (
  • In the military, white phosphorus is used in ammunitions such as mortar and artillery shells, and grenades. (
  • A debate is raging within the IDF over whether the military should use artillery shells, which contain white phosphorus, in a future operation in the Gaza Strip. (
  • Images of the exploding shells - appearing like a white octopus - featured widely in the press during Operation Cast Lead and it took the IDF days before it confirmed that it was using shells that contain white phosphorus in Gaza. (
  • In the Israeli government report on Cast Lead released in late 2009, it confirmed that the IDF used shells which contained white phosphorus and argued that they were used "in a manner corresponding with its duty to minimize the risk to civilians. (
  • On May 2, the Israeli military stated it would "significantly reduce its usage of smoke shells containing white phosphorus during the conduct of hostilities in urban areas. (
  • Israel's position, as asserted by the military's May 2 statement, is that, "The international law governing armed conflict does not contain a customary law prohibition on the use of white phosphorus for screening purposes, whether employed in an urban area or otherwise," and that the Israeli military's use of "smoke shells containing white phosphorus for screening purposes" is "conducted according to the requirements of international law. (
  • This section is about the chemistry of white phosphorus. (
  • In addition to various aspects of phosphorus covered by other literature, including chemistry, biochemistry, ecology, soil-plant systems and sustainable management, this book is a valuable and comprehensive source of information on the rapidly evolving field of P recovery and recycling engineering for students, researchers, and professionals responsible for sustainable use of phosphorus. (
  • Phosphorus cycling is especially slow compared with carbon and nitrogen cycling ( 1 ). (
  • Effect of level and form of phosphorus and level of calcium intake on zinc, iron, and copper bioavailability in man. (
  • This form of phosphorus is similar to the form found in the cell membrane, and it is essential for a variety of different processes occurring inside of the cell. (
  • Summary Many different types of seafood are rich in phosphorus. (
  • We need to be concerned about the emerging threat of phosphorus scarcity, as well as the impacts of too much phosphorus through run-off into lakes and oceans,' says Matt Kane, program director in NSF's Division of Environmental Biology, which supports the phosphorus summit. (
  • The solution is not to ignore the threat of phosphorus or allow the poultry industry to veto the rules but to stick to bay cleanup goals even when they are unpopular with politically influential groups in Maryland or Iowa. (
  • Yet it is uncertain whether the world's main source of phosphorus will be available and accessible in the future. (
  • Summary Pork is a good source of phosphorus, containing around 200 mg per three ounces (85 grams). (
  • The majority of phosphorus runoff in Virginia - more than 2 million pounds - leaches annually from farms, especially its poultry producers. (
  • 5%) dissolved inorganic phosphorus -- PO 4 3- polyphosphates ii. (
  • Gaseous phosphorus exists as diphosphorus and atomic phosphorus. (
  • This is because little phosphorus exists in a gaseous form and its major reservoir is sedimentary rock. (
  • This P 4 tetrahedron is also present in liquid and gaseous phosphorus up to the temperature of 800 °C (1,470 °F) when it starts decomposing to P 2 molecules. (
  • It's taken years for phosphorus levels to build up in the soil from all that poultry litter applied to fertilize crops, and it will take years after that practice is stopped for improvements in water quality to be observed. (
  • Mix the bone meal into the soil to add phosphorus. (
  • Often, there is adequate phosphorus in the soil, but the plants are unable to use it because the soil pH is too high or the nitrogen content is too low. (
  • Most of the phosphorus used residentially ends up getting leached out of the soil by rain and irrigation before the plants can use it. (
  • Phosphate is needed to replace the phosphorus that plants remove from the soil, and its annual demand is rising nearly twice as fast as the growth of the human population. (
  • This statement was prepared to give you information about white phosphorus and white phosphorus smoke and to emphasize the human health effects that may result from exposure to it. (
  • This is important because exposure to white phosphorus may harm you and because these sites are sources of human exposure to white phosphorus. (
  • Inhalation of white phosphorus smoke is presumed to be the least severe form of exposure, as it has not been shown to cause casualties. (
  • This study investigates the effects of phosphorus supplementation on the formation potential of total trihalomethanes (TTHMfp) and five species of haloacetic acids (HAA5fp) during exposure to clearwell disinfection contact times. (
  • a white odourless solid produced when phosphorus burns: has a strong affinity for water with which it forms phosphoric acids. (
  • White phosphorus burns: case report and literature review. (
  • Burns frequently are second and third degree because of the rapid ignition and highly lipophilic properties of white phosphorus. (
  • The international human rights organization said white phosphorus causes severe and often fatal burns. (
  • The two most common allotropes are white phosphorus and red phosphorus. (
  • Red phosphorus exists as an amorphous network. (
  • Upon further heating, the amorphous red phosphorus crystallizes. (
  • Phosphorus after this treatment is amorphous. (
  • After a number of successful attempts, researchers working with Derek P. Gates at the University of British Columbia (Vancouver, Canada) wanted to apply this concept to molecules that contain both P=C and C=C double bonds: phosphorus analogs of the building block of rubber, isoprene (2-methylbuta-1,3-diene) and its close relative, 1,3-butadiene. (
  • A new study combining data collected by the Rosetta mission at Comet 67P/Churyumov-Gerasimenko with ALMA observations of the star-forming region AFGL 5142 has revealed, for the first time, where molecules containing phosphorus form in the Universe. (
  • By observing such a stellar nursery with ALMA, Víctor and collaborators could pinpoint the formation sites of phosphorus-bearing molecules, which appear to be created while massive stars are formed. (
  • As flows of gas from young massive stars open up cavities in the surrounding cloud material, molecules containing phosphorus form on the cavity walls through the combined action of shocks and radiation from the infant star. (
  • ALMA and ROSINA detections of phosphorus-bearing molecules: the interstellar thread between star-forming regions and comets " by V. M. Rivilla et al. (
  • Phosphorus may be a lesser known mineral than the other minerals with which it is commonly grouped (like calcium or magnesium), but it is not one bit less important. (
  • Phosphorus in the form of phosphate is very efficiently absorbed in the small intestine, especially compared to many other minerals - like calcium, iron and magnesium , for example. (
  • 4 ) One reason this may be true is because older women are most likely to take high-dose calcium supplements (to address a calcium deficiency ) that consist of the carbonate or citrate salts that bind to phosphorus and make it unavailable for absorption. (