Nitrogen
Ammonia
Nitrates
Quaternary Ammonium Compounds
Nitrogen Fixation
Cyclooxygenase-2 is widely expressed in atherosclerotic lesions affecting native and transplanted human coronary arteries and colocalizes with inducible nitric oxide synthase and nitrotyrosine particularly in macrophages. (1/158)
Inflammation appears to have a major role in the development of atherosclerotic lesions affecting native and transplanted coronary arteries. The subsequent risk of plaque rupture and acute ischemic events correlates with the degree of inflammation and may be modified by aspirin, an anti-inflammatory cyclooxygenase inhibitor. Cyclooxygenase-2 (Cox-2) and inducible nitric oxide synthase (iNOS) are involved in the inflammatory response via the rapid and exaggerated production of prostanoids and nitric oxide, both of which may have proatherosclerotic effects. These effects may be mediated by the formation of peroxynitrite in the case of nitric oxide and involve "cross talk" between the two enzyme systems. This study aimed to investigate native and transplant atherosclerosis for the presence and distribution of Cox-2 and iNOS. Immunocytochemical studies were performed on atherosclerotic lesions from patients with native (n=12) and transplant (n=5) coronary disease by using antibodies to Cox-2, iNOS, and nitrotyrosine (an indicator of peroxynitrite production). Control tissue was obtained from unused donor hearts and at the time of autopsy. Cox-2 and iNOS colocalized predominantly in macrophages/foam cells in both types of atherosclerosis. Cox-2 expression was also detected in medial smooth muscle cells and endothelial cells, including those of the vasa vasorum. Nitrotyrosine was found in the same distribution as that of iNOS and was colocalized with Cox-2 in macrophages. Cox-2 and iNOS are coexpressed in native and transplant atherosclerosis, possibly allowing for interaction between the enzymes and suggesting an alternative mechanism for the benefits of aspirin via inhibition of Cox-2 activity. (+info)Role of myeloperoxidase in the neutrophil-induced oxidation of low density lipoprotein as studied by myeloperoxidase-knockout mouse. (2/158)
Low density lipoprotein was oxidized by neutrophils derived from either C57BL/6 mice or myeloperoxidase (MPO)-knockout mice. The generation of superoxide from neutrophils of MPO-knockout mice was about 70% of that from wild-type mice. The extent of the oxidation of human low density lipoprotein (LDL) by phorbol myristate acetate (PMA)-activated neutrophils of wild-type and MPO-knockout mice was assessed by measuring consumption of a-tocopherol and formation of phosphatidylcholine hydroperoxide (PCOOH) and cholesteryl ester hydroperoxide (CEOOH). Little consumption of a-tocopherol was observed in both oxidations. It was found, however, that lipid hydroperoxides were accumulated with time in both oxidations and that the rates of formation of PCOOH and CEOOH in the oxidation by MPO-knockout neutrophils were about 66 and 44% of those by wild-type neutrophils, respectively. The lipid peroxidation was completely inhibited by adding superoxide dismutase (SOD) in both cases. The addition of L-tyrosine and SOD enhanced lipid peroxidation of LDL induced by wild-type neutrophils but not by MPO-knockout ones. These results suggest that, regardless of their MPO activity, neutrophils induce lipid peroxidation of LDL by a superoxide-dependent pathway, and that MPO-catalyzed lipid peroxidation is enhanced by the presence of an appropriate amount of free tyrosine and further enhanced by SOD. (+info)Differential electron flow around photosystem I by two C(4)-photosynthetic-cell-specific ferredoxins. (3/158)
In the C(4) plant maize (Zea mays L.), two ferredoxin isoproteins, Fd I and Fd II, are expressed specifically in mesophyll and bundle-sheath cells, respectively. cDNAs for these ferredoxins were introduced separately into the cyanobacterium Plectonema boryanum with a disrupted endogenous ferredoxin gene, yielding TM202 and KM2-9 strains expressing Fd I and Fd II. The growth of TM202 was retarded under high light (130 micromol/m(2)/s), whereas KM2-9 grew at a normal rate but exhibited a nitrogen-deficient phenotype. Measurement of photosynthetic O(2) evolution revealed that the reducing power was not efficiently partitioned into nitrogen assimilation in KM2-9. After starvation of the cells in darkness, the P700 oxidation level under far-red illumination increased significantly in TM202. However, it remained low in KM2-9, indicating an active cyclic electron flow. In accordance with this, the cellular ratio of ATP/ADP increased and that of NADPH/NADP(+) decreased in KM2-9 as compared with TM202. These results demonstrated that the two cell type-specific ferredoxins differentially modulate electron flow around photosystem I. (+info)Altered TNF-alpha, glucose, insulin, and amino acids in islets of Langerhans cultured in a microgravity model system. (4/158)
The present studies were designed to determine effects of a microgravity model system upon lipopolysaccharide (LPS)-stimulated tumor necrosis factor-alpha (TNF-alpha) activity and indexes of insulin and fuel homeostasis of pancreatic islets of Langerhans. Islets (1,726 +/- 117, 150 islet equivalent units) from Wistar-Furth rats were treated as 1) high aspect ratio vessel (HARV) cell culture, 2) HARV plus LPS, 3) static culture, and 4) static culture plus LPS. TNF-alpha (L929 cytotoxicity assay) was significantly increased in LPS-induced HARV and static cultures; yet the increase was more pronounced in the static culture group (P < 0.05). A decrease in insulin concentration was demonstrated in the LPS-stimulated HARV culture (P < 0.05). We observed a greater glucose concentration and increased disappearance of arginine in islets cultured in HARVs. Although nitrogenous compound analysis indicated a ubiquitous reliance on glutamine in all experimental groups, arginine was converted to ornithine at a twofold greater rate in the islets cultured in the HARV microgravity model system (P < 0.05). These studies demonstrate alterations in LPS-induced TNF-alpha production of pancreatic islets of Langerhans, favoring a lesser TNF activity in the HARV. These alterations in fuel homeostasis may be promulgated by gravity-averaged cell culture methods or by three-dimensional cell assembly. (+info)Structure-activity relationships for inhibition of farnesyl diphosphate synthase in vitro and inhibition of bone resorption in vivo by nitrogen-containing bisphosphonates. (5/158)
It has long been known that small changes to the structure of the R(2) side chain of nitrogen-containing bisphosphonates can dramatically affect their potency for inhibiting bone resorption in vitro and in vivo, although the reason for these differences in antiresorptive potency have not been explained at the level of a pharmacological target. Recently, several nitrogen-containing bisphosphonates were found to inhibit osteoclast-mediated bone resorption in vitro by inhibiting farnesyl diphosphate synthase, thereby preventing protein prenylation in osteoclasts. In this study, we examined the potency of a wider range of nitrogen-containing bisphosphonates, including the highly potent, heterocycle-containing zoledronic acid and minodronate (YM-529). We found a clear correlation between the ability to inhibit farnesyl diphosphate synthase in vitro, to inhibit protein prenylation in cell-free extracts and in purified osteoclasts in vitro, and to inhibit bone resorption in vivo. The activity of recombinant human farnesyl diphosphate synthase was inhibited at concentrations > or = 1 nM zoledronic acid or minodronate, the order of potency (zoledronic acid approximately equal to minodronate > risedronate > ibandronate > incadronate > alendronate > pamidronate) closely matching the order of antiresorptive potency. Furthermore, minor changes to the structure of the R(2) side chain of heterocycle-containing bisphosphonates, giving rise to less potent inhibitors of bone resorption in vivo, also caused a reduction in potency up to approximately 300-fold for inhibition of farnesyl diphosphate synthase in vitro. These data indicate that farnesyl diphosphate synthase is the major pharmacological target of these drugs in vivo, and that small changes to the structure of the R(2) side chain alter antiresorptive potency by affecting the ability to inhibit farnesyl diphosphate synthase. (+info)Nitrogen uptake by wheat seedlings, interactive effects of four nitrogen sources: NO3-, NO2-, NH4+, and urea. (6/158)
The net influx (uptake) rates of NO3-, NH4+, NO2-, and urea into roots of wheat (Triticum aestivum cv Yecora Rojo) seedlings from complete nutrient solutions containing all four compounds were monitored simultaneously. Although urea uptake was too slow to monitor, its presence had major inhibitory effects on the uptake of each of the other compounds. Rates of NO3-, NH4+, and NO2- uptake depended in a complex fashion on the concentration of all four N compounds. Equations were developed which describe the uptake rates of each of the compounds, and of total N, as functions of concentrations of all N sources. Contour plots of the results show the interactions over the range of concentrations employed. The coefficients of these equations provide quantitative values for evaluating primary and interactive effects of each compound on N uptake. (+info)Effects of P(SAG12)-IPT gene expression on development and senescence in transgenic lettuce. (7/158)
An ipt gene under control of the senescence-specific SAG12 promoter from Arabidopsis (P(SAG12)-IPT) significantly delayed developmental and postharvest leaf senescence in mature heads of transgenic lettuce (Lactuca sativa L. cv Evola) homozygous for the transgene. Apart from retardation of leaf senescence, mature, 60-d-old plants exhibited normal morphology with no significant differences in head diameter or fresh weight of leaves and roots. Induction of senescence by nitrogen starvation rapidly reduced total nitrogen, nitrate, and growth of transgenic and azygous (control) plants, but chlorophyll was retained in the lower (outer) leaves of transgenic plants. Harvested P(SAG12)-IPT heads also retained chlorophyll in their lower leaves. During later development (bolting and preflowering) of transgenic plants, the decrease in chlorophyll, total protein, and Rubisco content in leaves was abolished, resulting in a uniform distribution of these components throughout the plants. Homozygous P(SAG12)-IPT lettuce plants showed a slight delay in bolting (4-6 d), a severe delay in flowering (4-8 weeks), and premature senescence of their upper leaves. These changes correlated with significantly elevated concentrations of cytokinin and hexoses in the upper leaves of transgenic plants during later stages of development, implicating a relationship between cytokinin and hexose concentrations in senescence. (+info)Differential roles of the Pseudomonas aeruginosa PA14 rpoN gene in pathogenicity in plants, nematodes, insects, and mice. (8/158)
We cloned the rpoN (ntrA, glnF) gene encoding the alternate sigma factor sigma(54) from the opportunistic multihost pathogen Pseudomonas aeruginosa strain PA14. A marker exchange protocol was used to construct the PA14 rpoN insertional mutation rpoN::Gen(r). PA14 rpoN::Gen(r) synthesized reduced levels of pyocyanin and displayed a variety of phenotypes typical of rpoN mutants, including a lack of motility and the failure to grow on nitrate, glutamate, or histidine as the sole nitrogen source. Compared to wild-type PA14, rpoN::Gen(r) was ca. 100-fold less virulent in a mouse thermal injury model and was significantly impaired in its ability to kill the nematode Caenorhabditis elegans. In an Arabidopsis thaliana leaf infectivity assay, although rpoN::Gen(r) exhibited significantly reduced attachment to trichomes, stomata, and the epidermal cell surface, did not attach perpendicularly to or perforate mesophyll cell walls, and proliferated less rapidly in Arabidopsis leaves, it nevertheless elicited similar disease symptoms to wild-type P. aeruginosa PA14 at later stages of infection. rpoN::Gen(r) was not impaired in virulence in a Galleria mellonella (greater wax moth) pathogenicity model. These data indicate that rpoN does not regulate the expression of any genes that encode virulence factors universally required for P. aeruginosa pathogenicity in diverse hosts. (+info)
Nitrogen compounds
... also have an important role in organic chemistry, as nitrogen is part of proteins, amino acids and adenosine ... C-N bonds are strongly polarised towards nitrogen. In these compounds, nitrogen is usually trivalent (though it can be ... is the most important compound of nitrogen and is prepared in larger amounts than any other compound, because it contributes ... The chemical element nitrogen is one of the most abundant elements in the universe and can form many compounds. It can take ...
Friedländer synthesis
Bergstrom, F. W. (1944). "Heterocyclic Nitrogen Compounds. Part IIA. Hexacyclic Compounds: Pyridine, Quinoline, and ... In the first mechanism 2-amino substituted carbonyl compound 1 and carbonyl compound 2 react in a rate-limiting step to aldol ... adduct 3. This intermediate loses water in an elimination reaction to unsaturated carbonyl compound 4 and then loses water ...
Hexachlorophosphazene
There is large academic interest in the compound relating to the phosphorus-nitrogen bonding and phosphorus reactivity. ... Allcock, H. R. (1972). Phosphorus-nitrogen compounds ; cyclic, linear, and high polymeric systems. New York: Academic Press. ... Nitrogen heterocycles, Inorganic compounds, Nitrides, Phosphorus heterocycles, Six-membered rings, Phosphazenes). ... "Structural investigations of phosphorus-nitrogen compounds. 7. Relationships between physical properties, electron densities, ...
Doebner-Miller reaction
Bergström, F. W. (1944). "Heterocyclic Nitrogen Compounds. Part IIA. Hexacyclic Compounds: Pyridine, Quinoline, and ... β-unsaturated carbonyl compound is prepared in situ from two carbonyl compounds (via an Aldol condensation), the reaction is ... The Doebner-Miller reaction is the organic reaction of an aniline with α,β-unsaturated carbonyl compounds to form quinolines. ... Because α-amino protons are not available in this model compound the reaction is not taken to the fully fledged quinoline. The ...
Nitrogen trifluoride
Nitrogen fluorides, Greenhouse gases, Industrial gases, Nitrogen(III) compounds). ... It proved to be far less reactive than the other nitrogen trihalides nitrogen trichloride, nitrogen tribromide and nitrogen ... Nitrogen trifluoride is primarily used to remove silicon and silicon-compounds during the manufacturing of semiconductor ... Air Products; Physical Properties for Nitrogen Trifluoride Sinke, G. C. (1967). "The enthalpy of dissociation of nitrogen ...
Pfitzinger reaction
Bergstrom, F. W. (1944). "Heterocyclic Nitrogen Compounds. Part IIA. Hexacyclic Compounds: Pyridine, Quinoline, and ... is the chemical reaction of isatin with base and a carbonyl compound to yield substituted quinoline-4-carboxylic acids. Several ...
Bischler-Möhlau indole synthesis
Carcinogenic nitrogen compounds. Part XXIV. The synthesis of indole and quinoline compounds from cyclic ketones". J. Chem. Soc ...
Sulfamic acid
Sulphur-nitrogen compounds. Part I. The hydrolysis of sulphamate ion in perchloric acid". Journal of the Chemical Society ( ... sulfur dioxide and nitrogen. Sulfamic acid (H3NSO3) may be considered an intermediate compound between sulfuric acid (H2SO4), ... is a molecular compound with the formula H3NSO3. This colourless, water-soluble compound finds many applications. Sulfamic acid ... The compound is well described by the formula H3NSO3, not the tautomer H2NSO2(OH). The relevant bond distances are 1.44 Å for ...
Nitridoborate
Many of the compounds produced can be described as ternary compounds of metal boron and nitrogen and examples of these are ... The nitridoborates are chemical compounds of boron and nitrogen with metals. These compounds are typically produced at high ... The bonding in some of these compounds is ionic in character, such as Ca3[BN2]2, other compounds have metallic characteristics ... However there are examples of compounds with more than one metal, for example La3Ni2B2N3 and compounds containing anions such ...
Taphrina caerulescens
Ultilization of nitrogen compounds. Mycologia, 45(6), 721-727. Mix, A., J. 1953. Differentiation of species of Taphrina in ... Various strains have also been shown to differ in their nitrogen and carbon compound metabolic profiles In the lab, symptoms ... There are differences in strains' abilities to metabolize various carbon and nitrogen compounds. This has been proposed as a ... Utilization of nitrogen compounds. Mycologia, 45(5), 649-670. Retrieved from https://www.jstor.org/stable/4547747. Sinclair, W ...
Carbon-nitrogen bond
Many nitrogen compounds can thus be potentially basic but its degree depends on the configuration: the nitrogen atom in amides ... A carbon-nitrogen bond is a covalent bond between carbon and nitrogen and is one of the most abundant bonds in organic ... "Origins of peaks of graphitic and pyrrolic nitrogen in N1s X-ray photoelectron spectra of carbon materials: quaternary nitrogen ... Nitrogen has five valence electrons and in simple amines it is trivalent, with the two remaining electrons forming a lone pair ...
Taphrina polystichi
Utilization of nitrogen compounds". Mycologia. 45: 649-670. Mix, A. J. (1954). "Differentiation of species of Taphrina in ... Utilization of carbon compounds". Mycologia. 46: 6721-727. (Articles with short description, Short description matches Wikidata ... In a trials of nitrogen utilization, T. polystichi was able to use ammonium chloride, ammonium citrate, ammonium nitrate, ...
Angelo Angeli
Angeli focused on nitrogen compounds. He investigated the structure of hydrazoic acid, synthesised nitrohydroxylamine (1894), ...
Birkeland-Eyde process
Martin, Geoffrey; Barbour, William (1915). Industrial Nitrogen Compounds and Explosives. Crosby Lockwood and Son. p. 21. Karl ... It is a multi-step nitrogen fixation reaction that uses electrical arcs to react atmospheric nitrogen (N2) with oxygen (O2), ... The nitrogen dioxide was absorbed into water in a series of packed column or plate column absorption towers each four stories ... The plasma temperature in the disc was in excess of 3000 °C. Air was blown through this arc, causing some of the nitrogen to ...
Nitrogen pentafluoride
Tolberg first synthesized a five-valent nitrogen compound of nitrogen and fluorine when tetrafluoroammonium compounds, ... Nitrogen fluorides, Hypothetical chemical compounds, Nitrogen(V) compounds). ... Nitrogen pentafluoride (NF5) is a theoretical compound of nitrogen and fluorine that is hypothesized to exist based on the ... Nitrogen pentafluoride also violates the octet rule in which compounds with eight outer shell electrons are particularly stable ...
Nitrogen pentahydride
... it is a compound of nitrogen and five of the same atom, but nitrogen pentafluoride is also a hypothetical compound, still never ... A compound that is similar to nitrogen pentahydride is the theretical nitrogen pentafluoride. Its structure is assumed to be ... Nitrogen pentahydride, also known as ammonium hydride is a hypothetical compound with the chemical formula NH5. There are two ... Another predicted structure of nitrogen pentahydride is an ionic compound, make up of an ammonium ion and a hydride ion (NH4+H ...
Cupriavidus necator
Ammann, E.; Reed, L. (1967). "Metabolism of nitrogen compounds by hydrogenomonas eutropha". Biochim. Biophys. Acta. 141 (1): ... Both organic compounds and hydrogen can be used as a source of energy C. necator can perform aerobic or anaerobic respiration ... It can fix carbon dioxide as a carbon source, use the urea in urine as a nitrogen source, and use hydrogen as an energy source ... by denitrification of nitrate and/or nitrite to nitrogen gas. When growing under autotrophic conditions, C. necator fixes ...
Tetrafluorohydrazine
molecule dimensions and angles "Nitrogen difluoride NF2(g)". www.chem.msu.su. (Chemical articles with multiple compound IDs, ... Compounds with Oxygen and Nitrogen. Gmelin Handbook of Inorganic Chemistry. Vol. 4. Berlin: Springer. p. 162. doi:10.1007/978-3 ... Tetrafluorohydrazine is manufactured from nitrogen trifluoride using an iron catalyst or iron(II) fluoride. It is used in some ... Tetrafluorohydrazine is in equilibrium with its radical monomer nitrogen difluoride. N2F4 ⇌ 2 NF2• At room temperature N2F4 is ...
Nitrogen difluoride
Compounds with Oxygen and Nitrogen. Gmelin Handbook of Inorganic Chemistry. Vol. 4. Berlin: Springer. p. 162. doi:10.1007/978-3 ... Nitrogen difluoride is formed during the function of a xenon monofluoride excimer laser. Nitrogen trifluoride is the halide ... Nitrogen difluoride can be consumed further to yield nitrogen monofluoride. NF2 + e− → NF + F− Trainor, Daniel W. (February ... Nitrogen difluoride, also known as difluoroamino, is a reactive radical molecule with formula NF2. This small molecule is in ...
Triazolate
... both of which are unsaturated heterocyclic ring compounds containing three nitrogen atoms. The basic formula is C2N3H2−. It can ... Trizolate is a tridentate ligand, and can form complexes with metals via the three nitrogen atoms. This enables polymers or ... metal organic framework compounds to be formed. Triazolate can also be substituted on its carbon atoms. Katritzky, Alan R. ( ... be abbreviated by "tz". Known compounds include zinc, and natural copper minerals, chanabayaite and triazolite. ...
Tetraselenium tetranitride
Inorganic compounds, Nitrides, Eight-membered rings, Nitrogen heterocycles, Heterocyclic compounds with 3 rings, Selenium ... Klapötke, T.M. (1992). "Binary Selenium-Nitrogen Species and Related Compounds". In R. Steudel (ed.). The Chemistry of ... Tetraselenium tetranitride is the inorganic compound with the formula Se4N4. Like the analogous tetrasulfur tetranitride S4N4, ...
Oligosaprobe
Nitrates are among the nitrogen compounds present; there is little carbonic acid and no hydrogen sulfide. Oligosaprobic ...
G2ZT
Azo compounds, Triazoles, All stub articles, Heterocyclic compound stubs). ... Klapötke, Thomas M.; Sabaté, Carles Miró (2008). "Bistetrazoles: Nitrogen-Rich, High-Performing, Insensitive Energetic ... The compound is thus considered by its advocates to be an environmentally friendlier explosive than traditional nitroamine- ... Compounds". Chemistry of Materials. 20 (11): 3629. doi:10.1021/cm703657k. v t e (Chemicals without a PubChem CID, Articles ...
Joseph Bienaimé Caventou
In 1823 they discovered nitrogen in alkaloid compounds. Other compounds they discovered include colchicine and veratrine. The ... Among their successes were the isolation of the following compounds: Quinine sulfate later proved to be an important remedy for ... Neither of the partners chose to patent their discovery of this compound, releasing it for everybody to use. ...
Anaerobic respiration
Denitrification converts both compounds into harmless nitrogen gas. Specific types of anaerobic respiration are also critical ... and carbon cycles through the reduction of the oxyanions of nitrogen, sulfur, and carbon to more-reduced compounds. The ... "Diversity and evolution of bioenergetic systems involved in microbial nitrogen compound transformations". Biochimica et ... which is the main route by which fixed nitrogen is returned to the atmosphere as molecular nitrogen gas. The denitrification ...
Trimethylthiazoline
... and Nitrogen Compounds in Food Flavors. ACS Symposium Series. Vol. 26. pp. 133-145. doi:10.1021/bk-1976-0026.ch009. ISBN 0-8412 ...
Amitermitinae
In addition, some species can synthesize nitrogen compounds. Many members of the Amitermitinae have evolved a very effective ...
HP-505
2. Compounds containing a heteroatom attached to nitrogen". Journal of Medicinal Chemistry. 20 (4): 610-612. doi:10.1021/ ... Spiro compounds, All stub articles, Nervous system drug stubs). ...
HBT (explosive)
The compound is thus considered by its advocates to be a more environmentally friendly explosive than traditional nitroamine- ... Thomas M. Klapötke and Carles Miró Sabaté (2008). "Bistetrazoles: Nitrogen-Rich, High-Performing, Insensitive Energetic ... 1,1'-Azobis-1,2,3-triazole G2ZT v t e (Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need ... Compounds". Chem. Mater. 20 (11): 3629-3637. doi:10.1021/cm703657k. S2CID 95448889. ...
Beggiatoa
... group shows substantial versatility in utilizing nitrogen compounds. Nitrogen can be a source for growth or, in the ... assimilate nitrogen for growth. Nitrogen sources include nitrate, nitrite, ammonia, amino acids, urea, aspartate, asparagine, ... Several species are able to fix nitrogen using nitrogenase enzyme (e.g. Beggiatoa alba). One of the defining features of the ... Specifically, many of them can be considered mixotrophs, because they grow heterotrophically, oxidizing organic compounds, but ...
Hyporheic zone
... nutrients and organic compounds. Moreover, it exhibits a significant control on the transport of pollutants across the river ... "Nitrogen Cycling in a Forest Stream Determined by a 15n Tracer Addition". Ecological Monographs. 70 (3): 471-493. doi:10.1890/ ... subjected to physic-chemical gradients generating biochemical reactions able to regulate the behavior of the chemical compounds ...
Beaver dam
... the conversion of nitrogen compounds back into nitrogen). Bacteria in the dirt and the plant debris, which collects at the dams ... Additionally, bacterial populations absorb nitrogen and phosphorus compounds as they pass by in the water stream and keep these ... Some scientists believe that the nitrogen cascade, the production of more fixed nitrogen than the natural cycles can turn back ... Fields, Scott (2004). "Global Nitrogen: Cycling out of Control". Environmental Health Perspectives. 112 (10): A556-A563. doi: ...
Joan Ehrenfeld
She found that barberry tissue is high in nitrogen-rich compounds akaloids, which causes a loss of organic matter in nearby ... soil due to excessive nitrogen cycling. As barberry starts to decompose, the nitrate levels in nearby soil start to increase, ...
Soil gas
The primary soil gases are nitrogen, carbon dioxide and oxygen. Oxygen is critical because it allows for respiration of both ... and contamination by petroleum hydrocarbons which produce volatile organic compounds. Gases fill soil pores in the soil ...
Steam car
... nitrogen oxides and unburned carbon in the exhaust, thus avoiding pollution. The greatest technical challenges to the steam car ... and used a twin cylinder double acting compound engine. It has been preserved at the National Motor Museum at Birdwood, South ...
Candida blankii
Consequently, it oxidizes many forms of alcohol, amino acid, carbohydrates, and other organic compounds. As a BOD biosensor, ... Effect of furfural on nitrogen assimilating enzymes of lactose utilizing yeasts Candida blankii 35 and Candida pseudotropicalis ...
Nikolai Menshutkin
March 1866 against Aleksandr Butlerov and Dmitri Mendeleev and in autumn began teaching a course on organic nitrogen compounds ... Between 1889 and 1895 Menshutkin focused on amines, on the kinetics of their interaction with alkyl halogen compounds and its ...
Metabolism
Organic compounds (proteins, lipids and carbohydrates) contain the majority of the carbon and nitrogen; most of the oxygen and ... These compounds are made by the assembly and modification of isoprene units donated from the reactive precursors isopentenyl ... Nitrogen is provided by glutamate and glutamine. Nonessensial amino acid synthesis depends on the formation of the appropriate ... The fats are a large group of compounds that contain fatty acids and glycerol; a glycerol molecule attached to three fatty ...
Food web
For example, certain plant species in the Castilleja and Plantago genera have been found to produce defensive compounds called ... Ecologists employ stoichiometry to analyze the ratios of the main elements found in all organisms: carbon (C), nitrogen (N), ... The field of chemical ecology has elucidated multitrophic interactions that entail the transfer of defensive compounds across ... obtain energy by the chemical oxidation of inorganic compounds and can grow in dark environments, such as the sulfur bacterium ...
Phosphorus mononitride
... is an inorganic compound with the chemical formula PN. Containing only phosphorus and nitrogen, this ... It is the first identified phosphorus compound in the interstellar medium. It is an important molecule in interstellar medium ... Inorganic compound stubs, Nitrides, Phosphorus compounds, Solids). ... The first identified phosphorus compound in the interstellar medium", Astrophysical Journal Letters, 321 (1): L75-L79, Bibcode: ...
Indinavir
brands, Piperazines, 3-Pyridyl compounds, Secondary alcohols, Tert-butyl compounds). ... C at which it starts to emit toxic vapors such as nitrogen oxides and sulfur oxides. The drug fits inside the protease, ... After much research, in March, 1990, researchers under Reider received a patent to synthesize part of L-689, 502 compound. ... which was assigned compound number L-735,524. They started to test L-735,524 on animals a couple months later and found that it ...
Sodium azide
It is used for the preparation of other azide compounds. It is an ionic substance, is highly soluble in water and is very ... Each azide is linked to six Na+ centers, with three Na-N bonds to each terminal nitrogen center. The common synthesis method is ... Sodium azide is a versatile precursor to other inorganic azide compounds, e.g., lead azide and silver azide, which are used in ... Sodium azide is the inorganic compound with the formula NaN3. This colorless salt is the gas-forming component in legacy[ ...
Equisetum sylvaticum
The plant is an indicator of boreal and cool-temperate climates, and very moist to wet, nitrogen-poor soils. Linnaeus was the ... The branches themselves are compound and delicate, occurring in whorls and drooping downward. There are generally 12 or more ...
Sulfolobus
A20 from Costa Rica and Comparative Analyses of the Putative Pathways of Carbon, Nitrogen, and Sulfur Metabolism in Various ... or chemoheterotrophically using sulfur to oxidize simple reduced carbon compounds. Heterotrophic growth has only been observed ...
Diazaquinone
A diazaquinone is a chemical compound that has an heterocyclic aromatic core including two consecutive doubly-bonded nitrogen ... doi:10.1021/ja00865a018 v t e (All stub articles, Organic chemistry stubs, Nitrogen compounds). ... These carbon and nitrogen atoms then comprise a diacyl diimide unit, −(C=O)−N=N−(C=O)−. Two canonical examples are 3,6- ... atoms −N=N−, with the two =CH− carbon units adjacent to the nitrogens replaced by carbonyl (ketone) groups −(C=O)−. ...
Nitrogen trichloride
Nitrogen halides, Inorganic chlorine compounds, Inorganic nitrogen compounds, Explosive chemicals, Nitrogen(III) compounds, ... Wikimedia Commons has media related to Nitrogen trichloride. OSHA - Nitrogen trichloride Nitrogen Trichloride - Health ... Nitrogen trichloride, also known as trichloramine, is the chemical compound with the formula NCl3. This yellow, oily, pungent- ... Nitrogen trichloride, trademarked as Agene, was at one time used to bleach flour, but this practice was banned in the United ...
Marine mammal
This nitrogen input in the Gulf of Maine is more than the input of all rivers combined emptying into the gulf, some 25,000 ... Marine mammals may be increasingly exposed to these compounds due to agricultural runoff reaching the world's oceans. The ... their excrement is important for fisheries because it is rich in iron and nitrogen. The whale feces are liquid and instead of ... Whales carry nutrients such as nitrogen from the depths back to the surface. This functions as an upward biological pump, ...
Mineral (nutrient)
... as compounds), a combination of vitamins and/or other chemical compounds, or a single element (as a compound or mixture of ... Oxygen, hydrogen, carbon and nitrogen are the most abundant elements in the body by weight and make up about 96% of the weight ... Most chemical elements that are ingested by organisms are in the form of simple compounds. Plants absorb dissolved elements in ... However, the four major structural elements in the human body by weight (oxygen, hydrogen, carbon, and nitrogen), are usually ...
Plate reader
Sims, G. K.; Ellsworth, T. R.; Mulvaney, R. L. (11 November 2008). "Microscale determination of inorganic nitrogen in water and ... and viability ATP quantification Immunoassays High throughput screening of compounds and targets in drug discovery Bead-Based ... "Efficient identification of novel anti-glioma lead compounds by machine learning models". European Journal of Medicinal ...
Environmental effects of shipping
... soot and nitrogen oxides from the engine exhaust, thus leaving a sludge that contains soot and various acidic compounds (or ... Of total global air emissions, marine shipping accounts for 18 to 30 percent of the nitrogen oxides and 9% of the sulfur oxides ... As air contains over 70% nitrogen by volume, some of it will react with oxygen during combustion. Given that those reactions ... EPA estimates that large marine diesel engines accounted for about 1.6 percent of mobile source nitrogen oxide emissions and ...
Peptide bond
Significant delocalisation of the lone pair of electrons on the nitrogen atom gives the group a partial double-bond character. ... even less than similar compounds such as esters. Nevertheless, peptide bonds can undergo chemical reactions, usually through an ... nitrogen number two) of another, along a peptide or protein chain. It can also be called a eupeptide bond to distinguish it ... such as placing the peptide group in a hydrophobic environment or donating a hydrogen bond to the nitrogen atom of an X-Pro ...
Rhodobacter sphaeroides
R. sphaeroides is also able to fix nitrogen. It is remarkably metabolically diverse, as it is able to grow heterotrophically ... sphaeroides allowed the development of biotechnological processes for the production of some endogenous compounds. These are ... depletion of nitrogen in the medium triggers intracellular accumulation of polyhydroxybutyrate, a reserve polymer. A genome- ...
Oxazoline
... is a five-membered heterocyclic chemical compound containing one atom each of oxygen and nitrogen. It was likely ... It was named in-line with the Hantzsch-Widman nomenclature and is part of a family of heterocyclic compounds, where it exists ... Oxazoline itself has no current applications however compounds containing the ring, which are referred to as oxazolines or ... CS1 German-language sources (de), CS1 maint: uses authors parameter, Chemical articles with multiple compound IDs, Multiple ...
Water vapor
78% nitrogen, N2; 21% oxygen, O2; 1% other gases) is 28.57 g/mol at standard temperature and pressure (STP). Obeying Avogadro's ... The absorption and emission of both compounds contribute to Earth's emission to space, and thus the planetary greenhouse effect ... the molar mass of diatomic nitrogen and diatomic oxygen both being greater than the molar mass of water. Thus, any volume of ...
Noble gas compound
KrF2 reacts with B(OTeF5)3 to produces the unstable compound, Kr(OTeF5)2, with a krypton-oxygen bond. A krypton-nitrogen bond ... Krypton compounds with other than Kr-F bonds (compounds with atoms other than fluorine) have also been described. ... In chemistry, noble gas compounds are chemical compounds that include an element from the noble gases, group 18 of the periodic ... Clathrates (also known as cage compounds) are compounds of noble gases in which they are trapped within cavities of crystal ...
Matrix-assisted ionization
A nitrogen laser is used to ablate the solid matrix/analyte into the heated inlet tube, the observed ions are generated at the ... New Aromatic and Nonaromatic Matrix Compounds Producing Multiply Charged Lipid, Peptide, and Protein Ions in the Positive and ...
S-Nitrosothiol
The S-N-O angle is near 114°, reflecting the influence of the lone pair of electrons on nitrogen. S-Nitrosothiols may arise ... Once formed, these deeply colored compounds are often thermally unstable with respect to formation of the disulfide and nitric ... In organic chemistry, S-nitrosothiols, also known as thionitrites, are organic compounds or functional groups containing a ... Articles with short description, Short description is different from Wikidata, Functional groups, Nitroso compounds, Sulfur ...
Watchdogs (Agents of S.H.I.E.L.D.)
The episode connects the series to several other MCU television shows: by featuring the chemical compound nitramene, which was ... but Daisy stops the implosion by freezing the gel with liquid nitrogen. Following Ruben home, Mack admits he works for SHIELD. ...
Halitosis: Practice Essentials, Epidemiology, Etiology
... and not volatile sulfur compounds (VSCs) alone to properly quantify malodor-causing compounds. In the treatment arena, the use ... thus decreasing the production of volatile sulfur compounds (VSC) or volatile organic compounds (VOCs). The common methods used ... The role of volatile sulfur compounds (VSCs) in producing bacteria that colonize over the tongue was recently understood as a ... These compounds decrease the bacterial load and thus decrease the VSC and VOC production. ...
Identifying and Prioritizing Chemicals with Uncertain Burden of Exposure: Opportunities for Biomonitoring and Health-Related...
Nitrogen-containing compounds. 1,3,5-Triazine-1,3,5(2h,4h,6h)-triethanol; 1h-1,2,4-triazole; 1h-benzo[de]isoquinoline-1,3(2h)- ... AFRs consist of a diverse array of bromine-, chlorine-, and nitrogen-containing compounds. They are found in environmental ... benzylalkyldimethyl ammonium compounds (BACs) (C12-C18), and dialkyldimethyl ammonium compounds (DADMACs) (C8-C18) (Zhang et al ... 2015). Compounds with an AUC score as either antagonist or agonist of ,. 0.1. were considered. We used the published results ...
E-Nose vs Quadrupole Mass Spectrometry for Identifying HCV
Nitrogen compounds, broad range, very sensitive to negative signals. S3 W3C. C6H6, 1 ppm. Ammonia, aromatic compounds. ... Aromatic compounds and Sulphur organic compounds. S10 W3S. CH3, 10CH3, 100 ppm. Selective to Methane, high concentrations ,100 ... Sulphur compounds H2S 0.1 ppm, Terpenes and Sulphur organic compounds (Limonene, Pyrazine). ... Alcohols, partially Aromatic compounds, broad range. S9 W2W. H2S, 1 ppm. ...
FMO3 gene: MedlinePlus Genetics
The FMO3 gene provides instructions for making an enzyme that breaks down a compound that gives fish their fishy smell. Learn ... The FMO3 enzyme, which is made chiefly in the liver, is responsible for breaking down nitrogen-containing compounds derived ... These enzymes break down compounds that contain nitrogen, sulfur, or phosphorus. ... One of these compounds is trimethylamine, which is the molecule that gives fish their fishy smell. Trimethylamine is produced ...
Chloropicrin Poisoning: Practice Essentials, Pathophysiology, Epidemiology
NIOSHTIC-2 Search Results - Full View
AA H
Schmeltz, I., Hoffmann, D., (1977) Nitrogen-Containing Compounds in Tobacco and Tobacco Smoke. Chemical Reviews, 77, 295-311. ... from compounds already present in the tobacco leaves) to form the AAs (Patrianakos, C., et. al, 1979). In addition to the ... The total nitrogen content in tobacco leaves-as derived from nitrates, ammonia, amino acids, amides and alkaloids-ultimately ... is converted to other nitrogenous organic compounds such as amino acids. Intermediate NH2 radicals, forming during the ...
Therapeutic journery of nitrogen mustard as alkylating anticancer agents: Historic to future perspectives - PubMed
The discovery of nitrogen mustard as an alkylating agent in 1942, opened a new era in the cancer chemotherapy. This valuable ... Nitrogen Mustard Compounds / administration & dosage Actions. * Search in PubMed * Search in MeSH ... nitrogen mustard activated by glutathione transferase, peptide based nitrogen mustards and CNS targeted nitrogen mustards. ... At the molecular level, nitrogen lone pairs of nitrogen mustard generate a strained intermediate "aziridinium ion" which is ...
NIOSHTIC-2 Search Results - Full View
Advanced Search Results - Public Health Image Library(PHIL)
Discovery Lake Seems to Keep Changing, What's Going On? | Kids Environment Kids Health - National Institute of Environmental...
Atmospheric nitrogen and lightening produced nitrogen compounds in the lake. *Polluted rain water containing nitrogen and ... Use alternatives to nitrogen as a deicer on campus. This summer, the North Carolina Division of Water Resources confirmed the ... Confidence is high that the primary nitrogen source was urea used for snow/ice melt on Institute roads and sidewalks. Changes ... Enrichment is usually related to excess nitrogen and phosphorous from storm water runoff. In other urban settings, it might be ...
Randomized trial of bendamustine-rituximab or R-CHOP/R-CVP in first-line treatment of indolent NHL or MCL: the BRIGHT study -...
Publication Detail
FMO3 gene: MedlinePlus Genetics
The FMO3 gene provides instructions for making an enzyme that breaks down a compound that gives fish their fishy smell. Learn ... The FMO3 enzyme, which is made chiefly in the liver, is responsible for breaking down nitrogen-containing compounds derived ... These enzymes break down compounds that contain nitrogen, sulfur, or phosphorus. ... One of these compounds is trimethylamine, which is the molecule that gives fish their fishy smell. Trimethylamine is produced ...
Halitosis: Practice Essentials, Epidemiology, Etiology
... and not volatile sulfur compounds (VSCs) alone to properly quantify malodor-causing compounds. In the treatment arena, the use ... thus decreasing the production of volatile sulfur compounds (VSC) or volatile organic compounds (VOCs). The common methods used ... The role of volatile sulfur compounds (VSCs) in producing bacteria that colonize the dorsal surface of the tongue was recently ... The level of intraoral volatile sulfur compounds (VSCs) can be estimated chairside using portable sulfide monitors such as the ...
Burchenal, Joseph 2001 - Office of NIH History and Stetten Museum
We tested a lot of different nitrogen mustard compounds. None were better than HN-2. None of them worked in acute leukemia in ... And we were using, of course, the compounds from the chemical warfare service at first, and the nitrogen mustard derivatives. ... And so we got many compounds. The first compound that I can think of that came from the group of George Hitchings and Gertrude ... took their compounds and hitched them on to nitrogen mustard. So we had mustards and mustards going and coming out our ears ...
Biomarkers Search
Synthesis and evaluation of substituted naphthalimide nitrogen mustards as rationally designed anticancer compounds.. Pain A; ... Evaluation of naphthalmustine, a nitrogen mustard derivative of naphthalimide as a rationally-designed anticancer agent.. Pain ... Synthesis and evaluation of 2-chloroethylnitrosoureas of substituted naphthalimides as mixed-function anticancer compounds. ...
Controlling urban air pollution: a benefit-cost assessment
Bendamustine plus rituximab versus CHOP plus rituximab as first-line treatment for patients with indolent and mantle-cell...
Bendamustine plus rituximab versus CHOP plus rituximab as first-line treatment for patients with indolent and mantle-cell...
NLM Technical Bulletin. 2007 Mar-Apr
New medication shows promise against liver fibrosis in animal studies | National Institute on Alcohol Abuse and Alcoholism ...
... the enzyme responsible for generating nitrogen compounds that promote inflammation. ... They found that the new compound was more effective in limiting fibrosis than compounds targeting either CB-1 receptors or iNOS ... The new compound was designed to have only very limited ability to enter the brain in order to avoid the psychiatric side ... However, because such compounds penetrate the brain and also block CB-1 receptors in the brain, they have undesirable ...
WONDER STD Document
Urethral Meatus Warts Cryotherapy with liquid nitrogen. or Podophyllin 10%-25% in compound tincture of benzoin. The treatment ... Unlike podophyllin, podofilox is a pure compound with a stable shelf-life and does not need to be washed off. Most patients ... Vaginal Warts Cryotherapy with liquid nitrogen. The use of a cryoprobe in the vagina is not recommended because of the risk for ... or Podophyllin 10%-25% in compound tincture of benzoin. Apply to the treatment area, which must be dry before removing the ...
These highlights do not include all the information needed to use FENTORA safely and effectively. See full prescribing...
The pKa of the tertiary nitrogens are 7.3 and 8.4. The compound has the following structural formula:. ... Specific CNS opioid receptors for endogenous compounds with opioid-like activity have been identified throughout the brain and ... Fentanyl is a highly lipophilic compound (octanol-water partition coefficient at pH 7.4 is 816:1) that is freely soluble in ...
MeSH Browser
Inorganic compounds that contain nitrogen as an integral part of the molecule.. Terms. Nitrogen Compounds Preferred Term Term ... Inorganic compounds that contain nitrogen as an integral part of the molecule.. Entry Version. NITROGEN CPDS. Registry Number. ... Nitrogen Compounds Preferred Concept UI. M0026728. Registry Number. 0. Scope Note. ... Nitrogen Compounds. Tree Number(s). D01.625. Unique ID. D017672. RDF Unique Identifier. http://id.nlm.nih.gov/mesh/D017672 ...
Inorganic CompoundsSulfurHydrogenUreaHeterocyclicDyesOxidesExcess nitrogenCarbonToxicityFertilizerAtmosphericPhosphorusPhosphatesNitricSolubleMoleculeOxygenAbstractSynthesisBiologicalProteinMolecularSoilLiverMetalsNaturallyOdorWaterCombined effectsIncludePotentialExposureLiquidPlantsAlkylating agentAdditionVersionEffectiveFormation
Inorganic Compounds3
- Nitrogen inorganic compounds take an important place in the field of the chemical substance pollution of drinking water. (upt.ro)
- In this paper our interests were to evaluate the nitrogen inorganic compounds of Timis country in ground water resources, in the year 2005. (upt.ro)
- Inorganic compounds that contain nitrogen as an integral part of the molecule. (nih.gov)
Sulfur1
- These enzymes break down compounds that contain nitrogen, sulfur, or phosphorus. (medlineplus.gov)
Hydrogen3
- Carbon is second only to hydrogen in the number of compounds that it forms. (h2g2.com)
- These compounds also contain hydrogen but are not the main focus of this Entry. (h2g2.com)
- Yellow: carbon atoms, blue: nitrogen atoms, white: hydrogen atoms. (chemeurope.com)
Urea6
- Application Urea is a high-concentration nitrogen fertilizer , a neutral organic fertilizer , and can also be used to produce a variety of compound fertilizers. (ecplaza.net)
- Confidence is high that the primary nitrogen source was urea used for snow/ice melt on Institute roads and sidewalks. (nih.gov)
- The excess nitrogen is used to make a compound called urea, which is excreted in urine. (nih.gov)
- Mutations in the ASS1 gene reduce the activity of the enzyme, which disrupts the urea cycle and prevents the body from processing nitrogen effectively. (nih.gov)
- Excess nitrogen (in the form of ammonia) and other byproducts of the urea cycle accumulate in the bloodstream. (nih.gov)
- AMMONUL is a nitrogen binding agent indicated as adjunctive therapy for the treatment of acute hyperammonemia and associated encephalopathy in patients with deficiencies in enzymes of the urea cycle. (nih.gov)
Heterocyclic5
- N-Heterocyclic compounds are central active ingredients of many drugs and at the same time important building blocks of new organic materials for the energy transition. (chemeurope.com)
- Researchers at the University of Bayreuth, led by Prof. Dr. Rhett Kempe, now present in "Nature Communications" a concept for the rational design of new classes of substances belonging to the group of N-heterocyclic compounds. (chemeurope.com)
- So far known classes of substances belonging to the group of N-heterocyclic compounds are already scientifically well developed in terms of their bio-activity and their diverse applications. (chemeurope.com)
- Expanding the group of N-heterocyclic compounds by rational design to include new, previously unknown classes of substances was a fascinating undertaking. (chemeurope.com)
- IP23 Benzothiazin-4-one compound containing basic nitrogen heterocyclic fragment and preparation method thereof_Zhejiang Stary Pharmaceutical Co., Ltd. (starrypharm.com)
Dyes1
- Nitrogen oxides are intermediates in the production of lacquers, dyes, and other chemicals and are important components of photo-oxidant smog. (cdc.gov)
Oxides10
- Synonyms for mixtures of nitrogen oxides include nitrogen fumes and nitrous fumes. (cdc.gov)
- Persons whose clothing is contaminated with liquid nitrogen oxides can secondarily contaminate others by direct contact or through off-gassing vapors. (cdc.gov)
- The primary route of exposure to nitrogen oxides is by inhalation, but exposure by any route can cause systemic effects. (cdc.gov)
- Nitrogen oxides represent a mixture of gases designated by the formula NO x . (cdc.gov)
- The toxicity of nitrous oxide (N 2 O) or laughing gas, which is used as an anesthetic, is different from that of the other nitrogen oxides and is not discussed in this protocol. (cdc.gov)
- Nitrogen oxides (NO 2 , N 2 O 4 , N 2 O 3 and N2O5) are irritating to the upper respiratory tract and lungs even at low concentrations. (cdc.gov)
- Children exposed to the same levels of nitrogen oxides as adults may receive larger doses because they have greater lung surface area:body weight ratios and increased minute volumes:weight ratios. (cdc.gov)
- Nitrogen oxides form naturally during the oxidation of nitrogen-containing compounds such as coal, diesel fuel, and silage. (cdc.gov)
- Nitrogen oxides are also formed during arc welding, electroplating, engraving, dynamite blasting, as components of rocket fuel, and nitration reactions such as in the production of nitro-explosives, including gun-cotton, dynamite and TNT. (cdc.gov)
- Trace metal impurities most likely cause nitrogen oxides to form in nitric acid and its solutions. (cdc.gov)
Excess nitrogen2
Carbon6
- Thus it has been estimated that there are of the order of 22 million organic (carbon-based) compounds 1 . (h2g2.com)
- The atmosphere contains approximately 0.03% carbon dioxide by volume from which a huge variety of biological compounds are derived. (h2g2.com)
- The magnetic properties of its nucleus enable it to act as an effective natural marker for the characterisation of carbon-containing compounds in 13 C nuclear magnetic resonance (NMR) spectroscopy. (h2g2.com)
- Along with the other first row non-metals, carbon can form C=C double bonds and C≡C triple bonds through sideways overlap of atomic p orbitals and these can be incorporated into the carbon-carbon bonded frameworks of its compounds, giving rigidity since these bonds can't rotate. (h2g2.com)
- N-Heterocycles are organic compounds whose ring-shaped structures contain at least one nitrogen atom in addition to carbon atoms. (chemeurope.com)
- Because of their unique stacked, cup-shaped, hollow compartments, nitrogen-doped carbon nanotube cups (NCNCs) have promising potential as nanoscale containers. (cdc.gov)
Toxicity2
Fertilizer3
- Pure Organic Compound Fertilizer for Garden Promoting Healthier Soils and Tastier Vegetables Guaranteed analysis T-N: 5% T-P2O5: 3% T-K2O: 2% Organic matter: 50% min Size: 2-4 mm/1-2 mm Characteristics 1.natural raw materials: fish meal, castor. (ecplaza.net)
- Dr Aid white water soluble NPK 19 19 19 compound fertilizer According to the law of fertilizer requirements for cash crops such as fruits and vegetables, scientific blending has the characteristics of stable and long fertilizer efficiency, easy. (ecplaza.net)
- We would like to offer you our Agricultural NPK 15-15-15 Compound Granular Fertilizer as follows: Country of Origin: Indonesia and/or China FOB Price: $855 USD / MT (Metric Ton) Packaging: 50Kg Polybag / 1,000Kg PP+PE Jumbo Bag MOQ: 10,000 MT. (ecplaza.net)
Atmospheric1
- They are produced commercially, usually as the first step in the production of nitric acid, either by the direct oxidation of atmospheric nitrogen in the electric arc (Birkeland-Eyder Process) or by the catalytic oxidation of anhydrous ammonia (Oswald Process). (cdc.gov)
Phosphorus1
- Strigolactones advertise the modification of the architecture of roots and shoots and stimulate a symbiosis of rhizobia bacteria and AMF fungi, and SLs play a critical role in nitrogen and phosphorus deficiency. (achrinhibitor.com)
Phosphates1
- You'll find many mechanisms by which bacteria contribute on the germination, development, and survival of plants, which include biological nitrogen fixation, solubilization of phosphates, production of Diversity Library Screening Libraries siderophores, biosynthesis of phytohormones (auxins, cytokines, and g. (achrinhibitor.com)
Nitric5
- Synonyms for nitric oxide (NO) include mononitrogen monoxide and nitrogen monoxide. (cdc.gov)
- On contact with moisture, nitrogen dioxide forms a mixture of nitric and nitrous acids. (cdc.gov)
- The mixture includes nitric oxide (NO), nitrogen dioxide (NO 2 ), nitrogen trioxide (N 2 O 3 ), nitrogen tetroxide (N 2 O 4 ), and nitrogen pentoxide (N 2 O 5 ). (cdc.gov)
- Nitric oxide is rapidly oxidized in air at high concentrations to form nitrogen dioxide. (cdc.gov)
- Both nitrogen dioxide and nitric oxide are gases at room temperature. (cdc.gov)
Soluble1
- Nitrogen dioxide is a colorless to brown liquid at room temperature and a reddish-brown gas above 70°F poorly soluble in water. (cdc.gov)
Molecule1
- One of these compounds is trimethylamine, which is the molecule that gives fish their fishy smell. (medlineplus.gov)
Oxygen1
- Nitrates and nitrites are compounds containing nitrogen and oxygen. (supermarketguru.com)
Abstract1
- Green chemistry}, abstract = { The catalytic efficiency of silver nanoparticles supported on chitosan as a green, robust, and efficient nanocatalyst for the direct synthesis of biologically active compounds, such as: imidazole derivatives as well as pyrazine scaffolds through multi-component reactions strategy, have been demonstrated. (undip.ac.id)
Synthesis1
- The concept now opens up new possibilities for the synthesis of chemical compounds that were previously difficult or impossible to access", adds Felix Leowsky-Künstler. (chemeurope.com)
Biological2
- The present invention relates a device, a biological cell, designed for the treatment of contaminated water, by reducing oxidised nitrogen compounds to nitrogen gas. (innoget.com)
- Previous studies have also shown that endocannabinoids, natural messengers in the body that help regulate many biological functions, play a role in liver fibrosis and, current compounds that block CB-1 receptors in the liver are moderately effective against liver fibrosis in animal models of the disease. (nih.gov)
Protein1
- Since further amendments are to be made, it of the protein content from the nitrogen content of should be recast in the interests of clarity. (who.int)
Molecular3
- Concepts for the rational design of new substance classes - that is, for a targeted design of molecular compounds based on chemical knowledge - are practically non-existent. (chemeurope.com)
- At the molecular level, nitrogen lone pairs of nitrogen mustard generate a strained intermediate "aziridinium ion" which is very reactive towards DNA of tumor cell as well as normal cell resulting in various adverse side effects alogwith therapeutic implications. (nih.gov)
- Senior author and NIAAA Scientific Director, Dr. George Kunos' team modified its structure to reduce its ability to penetrate the brain, and to include a molecular group that directly inhibits iNOS, the enzyme responsible for generating nitrogen compounds that promote inflammation. (nih.gov)
Soil1
- These results will contribute to the BCF database being developed for use in models aimed at predicting environmentally significant parameters for new munition compounds in soil. (canada.ca)
Liver2
- The FMO3 enzyme, which is made chiefly in the liver, is responsible for breaking down nitrogen-containing compounds derived from the diet. (medlineplus.gov)
- In the current study, Dr. Kunos and his colleagues tested the compounds in two widely used mouse models of liver fibrosis unrelated to obesity. (nih.gov)
Metals1
- The C 4+ is not observed but C 4- may exist in compounds which are called carbides formed with highly electropositive metals. (h2g2.com)
Naturally1
- During the cooking process, nitrites combine with amines naturally present in meat to form N-nitroso compounds. (supermarketguru.com)
Odor2
- The FMO3 enzyme normally converts fishy-smelling trimethylamine into another compound, trimethylamine-N-oxide, which has no odor. (medlineplus.gov)
- The excretion of this compound is responsible for the strong body odor characteristic of trimethylaminuria. (medlineplus.gov)
Water2
- The present invention provides improved bioelectrochemical systems and methods for removing oxidised nitrogen compounds from water streams, preferably groundwater and wastewater. (innoget.com)
- This data is the cornerstone of the health status research lead especially on the child population from these areas, who is exposed to high concentration of that nitrogen compounds and to find viable solution for the improvement of the drinking water supply system. (upt.ro)
Combined effects1
- The combined effects of catenation and multiple bond formation also allows the formation of planar cyclic aromatic 2 compounds such as benzene. (h2g2.com)
Include1
- Synonyms for nitrogen dioxide (NO 2 ) include dinitrogen tetroxide, nitrogen peroxide, nitrogen tetroxide, and NTO. (cdc.gov)
Potential2
- We investigated the bioconcentration potential of nitrogen-based compounds 4-nitroanisole (4-NAN), 3,5-dinitro-o-toluamide (3,5-DNoTAME), and 2-methoxy-5 nitropyridine (2-M-5-NPYNE) using earthworm Eisenia andrei exposures in aqueous exposure media in sand. (canada.ca)
- He adds, however, that the compound will require more extensive safety screening in animals before seeking FDA approval for studies of its therapeutic potential in humans. (nih.gov)
Exposure1
- Nitrogen dioxide is heavier than air, such that exposure in poorly ventilated, enclosed, or low-lying areas can result in asphyxiation. (cdc.gov)
Liquid2
Plants2
- Utilization of nitrogen and its compounds by plants. (epa.gov)
- Nitrates are natural constituents of plants and are the main source of nitrogen needed for growth. (supermarketguru.com)
Alkylating agent1
- The discovery of nitrogen mustard as an alkylating agent in 1942, opened a new era in the cancer chemotherapy. (nih.gov)
Addition2
- In addition, the effects of Hg++ and PCMBS can be reversed by the addition of dithiothreitol, an SH-containing compound, to the medium. (cdc.gov)
- In addition, they may be exposed to higher levels of nitrogen dioxide than adults in the same location because of their short stature and the higher levels of nitrogen dioxide found nearer to the ground. (cdc.gov)
Version1
- The new compound is a chemically modified version of ibipinapant, a brain-penetrating cannabinoid type 1 (CB-1) receptor antagonist used in scientific research. (nih.gov)
Effective1
- They found that the new compound was more effective in limiting fibrosis than compounds targeting either CB-1 receptors or iNOS alone. (nih.gov)
Formation1
- The formation of these compounds is also suspected to occur in the human stomach. (supermarketguru.com)
