Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"MCPA"”.
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Efficacy and Metabolism of Benazolin and Its Interactions With Acifluorfen, Bentazon, 2,4-Db, and Mcpa
… 2,2 dioxide}, MCPA ({(4-chloro-o-toyly)oxy}acetic acid), or 2,4-DB {4-(2,4-dichlorophenoxy)butanoic acid} for postemergence broadleaf weed control in soybeans {Glycine max (L.) Merr.}; to compare benazolin activity to auxin activity; and to study benazolin …
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Organic-geochemical investigations on the mode of incorporation of a defined nonylphenol isomer and the herbicide MCPA in soil derived organo-clay complexes
… (4-(3,5-dimethylhept-3-yl)phenol) and MCPA (4-chloro-2-methylphenoxyacetic acid) rapidly (48 h) formed non-extractable residues, especially in the clay fraction. A separation of organo-clay complexes in distinct sub-fractions by means of the MIBK method showed, that nonylphenol (NP) was …
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L' implantation et l'évolution du Mouvement des caisses populaires acadiennes en milieu urbain (1945-1972): l'exemple des caisses populaires de Moncton et de Bathurst
… des caisses populaires acadiennes ( ci-après MCPA ) dans les zones urbaines du Nouveau-Brunswick. Deux préoccupations guident notre démarche : d ’une part, leur pénétration, ou plutôt celle du MCPA, dans ces milieux et, d ’autre part, leur évolution dans deux régions urbaines particulières : …
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Einfluss von Mikroorganismen und Organo-Ton-Komplexe auf die Bildung von nicht-extrahierbaren Rückständen im Boden unter Verwendung von 14 C-Nonylphenol und 14 C-MCPA als Modellsubstanzen
… and 2-methyl-4-chlorophenoxyacetic acid (MCPA), were used. To understand the fate and behavior of the used test substances, as well as their breakdown products in soil and within the clay fraction of the soil, they were applied as 14C compounds. The use of sterilized soil allowed excluding …
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Nuevos métodos luminiscentes para la determinación de pesticidas en aguas
… Isoproturón, Linurón, Neburón, 2,4-D, 2,4,5-T , MCPA, MCPP y Propanil, así como la aplicación al desarrollo de nuevos métodos de análisis para la determinación de los mismos en aguas y la resolución de sus mezclas.
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The removal of chlorophenoxy herbicides from drinking water by activated carbon adsorption and liquid core microcapsule perstraction
… the removal of three chlorophenoxy herbicides (MCPA, 2,4-D and dichlorprop) from aqueous solutions by AC adsorption and a novel liquid-core microcapsule perstraction system. Herbicide adsorption to three ACs used in the drinking water industry was dependant on the pH of the water. As pH …
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Unravelling the impact of pesticides on the microbiota-gut-brain axis
… (a glyphosate-based formulation), MCPA, and paraquat—were also included (Chapter 3). Although, all exposures shifted the gut microbiota community structure, glyphosate exhibited the least pronounced effects among the compounds tested. Interestingly, commercial formulations, such as …
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Biochemical and molecular characterization of methyl-accepting chemotaxis proteins from Bacillus subtilis
… of two of these transducer genes, designated mcpA and mcpB, reveals specific chemotactic defects towards sugars or amino acids. Despite strong homology, the two additional genes do not appear to be involved in chemotaxis. Based upon the morphological phenotype of these mutant bacteria, it is …
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Impact of Oxygen and Pesticides on Microbial Cellulose Degradation in Aerated Agricultural Soils: A Microscaled Analysis of Processes and Prokaryotic Populations
… probing experiments. The pesticides Bentazon, MCPA and Nonylphenol impaired cellulose-linked microbial processes only at pesticide concentrations far above the recommended rate. The impairment was most pronounced under anoxic conditions. Planctomycetaceae and the new family-level taxon …
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Quantitative risk assessment of pesticides in drinking water under current and future climates
… water limits for several pesticides, including MCPA, mecoprop, and 2,4-D, but indicated that health risks were low under current conditions despite these exceedances. Finally, this thesis investigates the impact of climate change on pesticide transport and health risks, integrating …
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Non-canonical sensing mechanisms in bacteria
… B. subtilis. McpB and its three paralogs, namely McpA, TlpA and TlpB are responsible for pH sensing. We investigated the molecular basis for bipolar pH sensing. Modified capillary assay was used to measure responses to opposite pH gradients. Through in vivo chimeric receptor and site-directed …