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 20 of 72 for “"Agrochemicals"”.
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The Effects of Agrochemicals on Litter Fungi
… the non-mycorrhizal species in the presence of agrochemicals. The organo-mercurial fungicide VERDASAN was shown to inhibit cellulase activity of a Basidiomycete found inhabiting leaf litter.
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Synthesis of Novel Agrochemicals as Potential Plant Immunization Agents.
<p>The world's population is expected to grow from 6 billion to about 10 billion by 2050. The greatest population increase is expected to occur in Africa, Latin America, and Asia. To feed a world with huge increases in population and to sustain the well-being of humans, a large increase in food …
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Imaging the distribution of agrochemicals in plants by MALDI-MSI.
… and time taken means that only a relatively few agrochemicals can be studied in this way.MALDI is a highly adaptable soft ionisation technique that was established in the late 1980's through the developmental research of Tanaka and Hillenkamp. The versatility of MALDI-MS has been extended in …
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Physicochemical studies of the inclusion of selected agrochemicals in cyclodextrins
Pesticides frequently display adverse properties such as low aqueous solubility, low stability, and high toxicity that limit their applications and render them environmentally hazardous. The possibility of improving these physical properties was attempted by complexing four pesticides with native …
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Agrochemicals and rural women's health in the Volta Region of Ghana
1 PDF file (vii, 76 pages)
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Nuclear Characteristics of Cells and Organisms Exposed to Agrochemicals Contaminating Aquatic Ecosystems
The final objective was to adapt a recently developed cytogenetic technique for use in anurans. The primed in situ labeling (PRINS) technique was applied to localize a specific developmentally important DNA sequence in anuran chromosomes. This technique has the potential to be an important tool in …
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Degradation Of Selected Organic Agrochemicals In Artificial Soil Slurry Systems By Anodic Fenton Treatment
… treatment to the degradation of several probe agrochemicals in model soil slurry systems. A kinetic model, called the slurry AFT model, was developed to describe the degradation process in the slurry system. Effects of different model soil components, such as humic acid, kaolin or …
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Spread of Red Imported Fire Ant, Solenopsis invicta, in Virginia and effects of sub-lethal exposure to agrochemicals on its behavior
Solenopsis invicta is an invasive ant that has caused detrimental impacts to ecosystems and economies in the Southeastern United States, recently including Virginia. In this study, we explored the invasion ecology of S. invicta through two main objectives. First, we established a comprehensive …
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Agrotóxico: uma violência silenciosa nos espaços rurais do município de Queimadas - PB.
The use of agrochemicals is one of the silent forms of violence that rural workers lives every day, pesticides put in danger farm workers and their families, as they directly affect the health and quality of life of all its relatives. The use of these poisons is directly linked with the development …
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Catalytic one-carbon homologation of alkenes
… pharmaceutical agents, natural products, agrochemicals and fragrances. Consequently, the development of efficient and direct methods for one-carbon homologation represents an important goal in organic synthesis. While homologation strategies are available for several functional groups, …
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AUTOSEP-Automated Separation by Eluotropic Space Optimisation
… of the separation of drugs, as well as, agrochemicals, by choosing the best mobile phase ratio for succeeding the optimum peak separation by measuring resolution values. The experimental work was optimised by DOE by using a wide range of design and response variables to access the …
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Nanoparticles at liquid interfaces
… a number of industrial applications including agrochemicals, pharmaceuticals, cosmetics, food technology, paints, paper processing and oil recovery.Each section of this work investigates a different solid-stabilised system. For each of these systems a novel way to change the properties of the …
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Biodegradability of dicamba and 2,4-D in riparian wetland soils
… of the potential detrimental effects these agrochemicals represent on aquatic and animal life in the Chesapeake Bay, the largest and most productive estuary in the United States.
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O uso do agrotóxico: o caso do cultivo de abacaxi no município de Sapé PB.
… objective of evaluate and elucidate the use of agrochemicals, informing the serious damages that they cause to population, and thy main form of manifestation. So, is entirely necessary to prevent of the harmful effects of agrotoxins that can even cause death.
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FRUSTRATED LEWIS PAIR-MEDIATED SELECTIVE C–F BOND ACTIVATION AND SUBSEQUENT POST-FUNCTIONALIZATION OF POLYFLUOROALKANES
… material chemistries and are present in several agrochemicals, materials, and pharmaceuticals. The inclusion of fluorine in such molecules is attractive to enhance solubility, biological activity, chemical resistivity, thermal stability and to act as a spectroscopic probe. Thus, direct access of …
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Una medición de productividad y cambio tecnológico en agroquímicos: el caso del arroz Colombiano después de la revolución verde
… to generate policies to reduce use for agrochemicals. Last section concludes.
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Selective functionalization of azines via phosphonium salts
… and diazines are ubiquitous in pharmaceuticals, agrochemicals, and materials. Therefore, methods to functionalize these structural motifs are increasingly valuable. We have shown that phosphonium salts can be formed on a range of azines, including complex biologicallyactive compounds. …
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Copper-Catalyzed Amino Oxygenation of Alkenes and Dienes: A Novel Amino-Initiation Pathway Using O-Benzoylhydroxylamines
… to modern pharmaceuticals, natural products, and agrochemicals. 1,2-Difunctionalization of alkenes offers an efficient approach to assemble these scaffolds in a single step from readily available starting materials. In this dissertation, a novel copper-catalyzed amino oxygenation strategy of …
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Development of Sustainable Catalytic Systems For Oxidation Reactions
… both bulk and fine chemicals, pharmaceuticals, agrochemicals and many more. Despite this, oxidations are often avoided due to the environmental and economic problems associated with traditional, stoichiometric oxidising agents. Within this thesis, three methods for the aerobic catalytic …
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Engineering polymeric hollow fiber membrane reactors for sustainable chemical transformation reactions
… of pharmaceuticals, fine chemicals, and agrochemicals, as well as upgrading of biomass feedstocks. Immobilization of organocatalysts and metal nanoparticles on continuous-flow microreactors offers an efficient catalytic system that exploits and enhances the advantages of both …
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