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  • crops
  • During the last several years, farmers and home gardeners in several states have reported damage to vegetable and flower crops after applying compost and mulch that contained persistent pesticide residues. (ca.gov)
  • Nutrients from residue are not fully recovered by crops. (wikipedia.org)
  • Just like fertilizer nutrients, nutrients released from crop residue into the soil are susceptible to losses such as leaching (N and S), denitrification (N), immobilization (N, P, K and S), and fixation (P and K). The efficiency of nutrient uptake by crops from fertilizers or residue release is generally thought to be similar. (wikipedia.org)
  • Distillation
  • Residue may be the material remaining after a process of preparation, separation, or purification, such as distillation , evaporation , or filtration . (wikipedia.org)
  • A residue curve describes the change of the composition of the liquid phase of a chemical mixture during continuous evaporation at the condition of vapor-liquid equilibrium (open distillation). (wikipedia.org)
  • Residue curves allow testing the feasibility of a separation of mixtures and therefore are a valuable tool in designing distillation processes. (wikipedia.org)
  • Residue curve maps are typically used for examining ternary mixtures which can't be easily separated by distillation because of azeotropic points or too small relative volatilities. (wikipedia.org)
  • 2000
  • Nearly two-thirds of non-organic bread tested by Prif between 2000 and 2013 contained at least one pesticide residue, including glyphosate. (mercola.com)
  • Boeing issued a multi-model service letter (No. 737-SL-12-014) in January 2000 that advised operators about the potential for deicing/anti-icing fluid residue problems. (boeing.com)
  • Environmental Protec
  • The U.S. Environmental Protection Agency (USEPA) has incorporated tissue residue through the development of the Biotic Ligand Model as well as water quality standards for copper. (wikipedia.org)
  • arise
  • The majority of issues with tissue residue arise in the interpretation of tissue residue data. (wikipedia.org)
  • If k is not algebraically closed, then more types arise, for example if k = R, then the prime ideal (x2 + 1) has residue field isomorphic to C. For a scheme locally of finite type over a field k, a point x is closed if and only if k(x) is a finite extension of the base field k. (wikipedia.org)
  • Conventional
  • Residue depth has also been utilized in predicting small molecule binding site on proteins, with accuracy statistically on par with other conventional methods. (wikipedia.org)
  • organic
  • In one recent study, those who "often or always" ate organic had about 65 percent lower levels of pesticide residues compared to those who ate the least amount of organic produce. (mercola.com)
  • In addition, in 2009, bifenthrin residues in compost caused problems for organic farmers and compost producers. (ca.gov)
  • Tissue residue also cannot account for biotransformation of organic chemicals. (wikipedia.org)
  • Thus
  • Thus pea residue would have short- and long-term benefits to soil fertility, whereas cereal straw would reduce next year's soil supply of available nutrients. (wikipedia.org)
  • citation needed] Thus, the practice of calculating the fertilizer equivalent value of the nutrients in crop residue is a reasonable guide to estimating the partial value of crop residues. (wikipedia.org)
  • Thus, the number of quadratic residues modulo n cannot exceed n/2 + 1 (n even) or (n + 1)/2 (n odd). (wikipedia.org)
  • The mechanism of action for a chemical depends on the internal tissue concentration, thus tissue residue gives researchers a more direct estimate of the residue-effect (dose-response) relationship. (wikipedia.org)
  • radioactive
  • K-65 residues are the very radioactive mill residues resulting from a uniquely concentrated uranium ore discovered before WW II in Katanga province (Shinkolobwe) of the Democratic Republic of the Congo (formerly called the Belgian Congo). (wikipedia.org)
  • protein
  • In biochemistry and molecular biology , a residue refers to a specific monomer within the polymeric chain of a polysaccharide , protein or nucleic acid . (wikipedia.org)
  • One might say, "This protein consists of 118 amino acid residues" or "The histidine residue is considered to be basic because it contains an imidazole ring. (wikipedia.org)
  • Residue depth (RD) is a solvent exposure measure that describes to what extent a residue is buried in the protein structure space. (wikipedia.org)
  • Currently, predictions in regards to whether a residue is exposed or buried are used in a wide variety of protein structure prediction engines. (wikipedia.org)
  • Such prediction can provide valuable information for protein fold recognition, functional residue prediction and protein drug design. (wikipedia.org)
  • Several biophysical properties of proteins have been shown to correlate with residue depth, including mutant protein stability, protein-protein interface hot-spot, H/D exchange rate of residue and residue conservation. (wikipedia.org)
  • Madhusudhan, M.S. (2013), "Depth: a web server to compute depth, cavity sizes, detect potential small-molecule ligand-binding cavities and predict the pKa of ionizable residues in proteins", Nucleic Acids Research, 41 (W1): W314-321, doi:10.1093/nar/gkt503, PMC 3692129 , PMID 23766289 DEPTH web server - Protein depth computation and small molecule binding site prediction. (wikipedia.org)
  • Soil
  • In contrast, below 1.2 per cent (such as cereal residue), soil-available N is fixed (called immobilization) by the microbes as they decompose the residue. (wikipedia.org)
  • feedstock
  • Although this restriction appears to be effective, composters that use hay, manure, and bedding as feedstock should verify that it does not contain aminopyralid residue at levels that, when composted, could harm non-target plants. (ca.gov)
  • Because of the high carbohydrate content, crop residues can be considered as an appropriate feedstock to produce biofuels. (wikipedia.org)
  • Samples
  • To prevent deterioration, blood residue samples are stored under refrigeration and, in the case of stains, air-dried. (wikipedia.org)
  • whereas
  • The product of the residue 3 and the nonresidue 5 is the residue 3, whereas the product of the residue 4 and the nonresidue 2 is the nonresidue 2. (wikipedia.org)
  • The product of the nonresidues 2 and 8 is the residue 1, whereas the product of the nonresidues 2 and 7 is the nonresidue 14. (wikipedia.org)
  • In the above example, the points of the first kind are closed, having residue field k, whereas the second point is the generic point, having transcendence degree 1 over k. (wikipedia.org)
  • Modulo
  • For a given n a list of the quadratic residues modulo n may be obtained by simply squaring the numbers 0, 1, …, n − 1. (wikipedia.org)
  • Modulo 2, every integer is a quadratic residue. (wikipedia.org)
  • Modulo an odd prime number p there are (p + 1)/2 residues (including 0) and (p − 1)/2 nonresidues. (wikipedia.org)
  • Following this convention, modulo an odd prime number there are an equal number of residues and nonresidues. (wikipedia.org)
  • Modulo a prime, the product of two nonresidues is a residue and the product of a nonresidue and a (nonzero) residue is a nonresidue. (wikipedia.org)
  • The first supplement to the law of quadratic reciprocity is that if p ≡ 1 (mod 4) then −1 is a quadratic residue modulo p, and if p ≡ 3 (mod 4) then −1 is a nonresidue modulo p. (wikipedia.org)
  • This implies the following: If p ≡ 1 (mod 4) the negative of a residue modulo p is a residue and the negative of a nonresidue is a nonresidue. (wikipedia.org)
  • If a is an odd number and m = 8, 16, or some higher power of 2, then a is a residue modulo m if and only if a ≡ 1 (mod 8). (wikipedia.org)
  • A number a relatively prime to an odd prime p is a residue modulo any power of p if and only if it is a residue modulo p. (wikipedia.org)
  • The basic fact in this case is if a is a residue modulo n, then a is a residue modulo pk for every prime power dividing n. if a is a nonresidue modulo n, then a is a nonresidue modulo pk for at least one prime power dividing n. (wikipedia.org)
  • Modulo a composite number, the product of two residues is a residue. (wikipedia.org)
  • uranium
  • The very high concentrations of these extremely toxic, long-lived radionuclides present in these wastes prompted the National Academy of Sciences' National Research Council to categorize them as indistinguishable in hazard from High-Level Waste in its 1995 report, "Safety of the High-Level Uranium Ore Residues at the Niagara Falls Storage Site, Lewiston, New York" . (wikipedia.org)
  • The Mallinckrodt "K-65 residues" were later moved to the Feed Materials Production Center, a Cold War era uranium refinery at Fernald, OH (outside of Cincinnati) which commenced operations in 1951. (wikipedia.org)
  • operators
  • The workgroup collaborated with stakeholders to develop the following information as a guide for compost operators and others who may test compost for pesticide residues. (ca.gov)
  • This frequency is based upon information from operators that have experienced multiple occurrences of flight control issues due to deicing/anti-icing fluid residues. (boeing.com)
  • establish
  • A study was performed to establish the duration of oxytetracycline residues in milk from cows with retained fetal membranes given the antimicrobial via intrauterine infusion. (usu.edu)
  • curve
  • A residue curve can also be constructed backwards and then moves to the azeotropic point or pure component with lower temperatures or higher vapor pressure. (wikipedia.org)
  • If the composition of a feed lies inside a specific region a residue curve cannot cross a border line and stays in its initial region. (wikipedia.org)
  • Residue curve never reach an unstable node. (wikipedia.org)
  • d x d ξ = x − y {\displaystyle {\frac {dx}{d\xi }}=x-y} with x: vector of liquid compositions in mole fractions [mol/mol] y: vector of vapor compositions in mole fractions [mol/mol] ξ: dimensionless time The integration of this equation can be done forward and backward in time allowing the calculation from any feed composition to the begin and end of the residue curve. (wikipedia.org)
  • The relationship of the residue theorem to Stokes' theorem is given by the Jordan curve theorem. (wikipedia.org)
  • In order to evaluate real integrals, the residue theorem is used in the following manner: the integrand is extended to the complex plane and its residues are computed (which is usually easy), and a part of the real axis is extended to a closed curve by attaching a half-circle in the upper or lower half-plane, forming a semicircle. (wikipedia.org)
  • The integral over this curve can then be computed using the residue theorem. (wikipedia.org)
  • Exposure
  • The use of tissue residue allows an investigator to: account for multiple routes of exposure, account for toxicokinetic differences between species, account for factors that alter bioavailability and potentially address exposure of an organism to a chemical mixture. (wikipedia.org)
  • Tissue residue is also less variable than other measures of chemical exposure. (wikipedia.org)
  • In addition to the aforementioned advantages of tissue residue use, the U.S. EPA also states that this approach explicitly considers exposure through diet, will support identification and investigation of a chemical's mode of action, incorporate the effects of an organism's metabolism on accumulation and allow for experimental verification between lab and field studies. (wikipedia.org)
  • Although use of tissue residue can account for multiple routes of exposure, it cannot identify the routes of exposure. (wikipedia.org)
  • advise
  • The service letters also advise of AMM revisions that include more information about where to look for fluid residue. (boeing.com)
  • secondary
  • Test accuracy requires procedures that avoid secondary gunshot residue transfer from police officers onto subjects or items to be tested, and that avoid contamination in the laboratory. (wikipedia.org)
  • proposed the RDpred method to predict RD values based on predicted secondary structure, residue position and PSI-BLAST profile. (wikipedia.org)
  • micro
  • Although crop residues contain both macro- and micro nutrients, only values for the macro nutrients nitrogen, phosphorus, potassium and sulfur are economically significant. (wikipedia.org)
  • It may be expressed as Ramsbottom carbon residue (RCR), Conradson carbon residue (CCR) or micro carbon residue (MCR). (wikipedia.org)
  • species
  • When choosing tissue, a scientist needs to consider: mode and mechanism of action of chemical being tested, site of toxic action for the chemical and species combination being studied and strength of the tissue residue-response relationship. (wikipedia.org)
  • composition
  • Depending on water composition and plant control, residues may precipitate inside the plant. (bfs.de)
  • Residue curves start at the composition of a feed and then move to pure components or azeotropic points with higher temperatures (isobaric condition) or lower vapor pressures (isothermal condition). (wikipedia.org)
  • chemical
  • Tissue residue is the concentration of a chemical or compound in an organism's tissue, or a portion of an organism's tissue. (wikipedia.org)
  • presence
  • The study also investigated whether the number of infusions or the presence of fever affected the duration of residues. (usu.edu)
  • 2. Visually inspect for the presence of dry or rehydrated residue anywhere in these areas. (boeing.com)
  • form
  • some atoms, typically in the form of a water molecule, are discarded from each building block, leaving only a "residue" of the building block, that ends up in the finished product. (wikipedia.org)
  • These situations make it possible for residue gel to form on the external wing surfaces as well as the internal quiet areas of the rear spar and the balance bays. (boeing.com)
  • Dream Residue" is in form, but I hear it in Jazz, and so recited it that way. (thenervousbreakdown.com)
  • The standard documentation of blood residue includes photographs and descriptions of form, color, size and position of each stain found. (wikipedia.org)
  • So a nonzero number is a residue mod 8, 16, etc., if and only if it is of the form 4k(8n + 1). (wikipedia.org)
  • In fact, the multiplicative group of the non-residues and 1 form the Klein four-group. (wikipedia.org)
  • In brief, the carbon residue of a fuel is the tendency to form carbon deposits under high temperature conditions in an inert atmosphere. (wikipedia.org)
  • general
  • p is a nonresidue, and in general all the residues and nonresidues obey the same rules, except that the products will be zero if the power of p in the product ≥ n. (wikipedia.org)
  • Field
  • Good management of field residues can increase efficiency of irrigation and control of erosion. (wikipedia.org)
  • If R is a commutative ring and m is a maximal ideal, then the residue field is the quotient ring k = R/m, which is a field. (wikipedia.org)
  • This construction is applied in algebraic geometry, where to every point x of a scheme X one associates its residue field k(x). (wikipedia.org)
  • One can say a little loosely that the residue field of a point of an abstract algebraic variety is the 'natural domain' for the coordinates of the point. (wikipedia.org)
  • Then the residue field is the quotient ring R/m. (wikipedia.org)
  • Applying the construction above, we obtain the residue field of the point x : k(x) := Ap / p·Ap. (wikipedia.org)
  • The dimension of a scheme of finite type over a field is equal to the transcendence degree of the residue field of the generic point. (wikipedia.org)
  • process
  • Process residues are materials left after the crop is processed into a usable resource. (wikipedia.org)
  • Carbon residue is an important measurement for the feed to the refinery process fluid catalytic cracking and delayed coking. (wikipedia.org)