Search for dissertations about: "agrochemicals"

Showing result 11 - 14 of 14 swedish dissertations containing the word agrochemicals.

  1. 11. Asymmetric Hydrogenations of Imines, Vinyl Fluorides, Enol Phosphinates and Other Alkenes Using N,P-Ligated Iridium Complexes

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Jarle Sidney Diesen; Pher G. Andersson; Kálmán J. Szabó; [2008]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Organic chemistry; Catalysis; Asymmetric; Hydrogenations; Reductions; Alkenes; Imines; Vinyl fluorides; Enolphosphinates; Transition metal; Complexes; Iridium; Organisk kemi; MEDICINE Chemistry; MEDICIN Kemi;

    Abstract : The research described in this thesis is directed toward the efficient, enantioselective synthesis of chiral products that have useful functionality. This goal was pursued through catalytic asymmetric hydrogenation, a reaction class that selectively introduces one or two stereocenters into a molecule in an atom-efficient step. READ MORE

  2. 12. Pesticide use in rice farming and its impacts on climbing perch (Anabas testudineus) in the Mekong Delta of Vietnam

    University dissertation from Stockholm : Department of Physical Geography, Stockholm University

    Author : Thanh Tam Nguyen; Håkan Berg; Michael Tedengren; Cong Van Nguyen; Joachim Sturve; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mekong Delta; Rice field; Climbing perch; Insecticide; Chlorpyrifos ethyl; Fenobucarb; Mixture; Sequential applications; AChE; naturgeografi; Physical Geography;

    Abstract : The intensification of agricultural production in the Mekong Delta has faced serious challenges with respect to increased use of agrochemicals and especially pesticides. The indiscriminate use of pesticide could potentially impact on the long-term food production, environmental and human health in the delta. READ MORE

  3. 13. Lipases as Biocatalysts in Organic Media. Influence of Enzyme Preparation and Reaction Conditions on Activity and Selectivity

    University dissertation from Mattias Persson Sölvegatan 39, kemicentrum, Lunds universitet

    Author : Mattias Persson; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biochemical technology; Bioteknik; Biotechnology; water activity; temperature; enantioselectivity; immobilisation; organic solvents; lyophilisation; Lipases; Accurel EP-100; Biokemisk teknik; Proteins; enzymology; Proteiner; enzymologi;

    Abstract : The discovery that enzymes can function in organic solvents has broadened the scope of biocatalysis, making enzymes highly useful tools for organic chemists. The widespread use of enzymes as catalysts in organic solvents has, however, been limited by the low activity obtained for enzymes in organic solvents compared to aqueous solutions. READ MORE

  4. 14. Studies towards late blight control in potato

    University dissertation from Department of Biology, Lund University

    Author : Laith Moushib; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Oomycetes; plant induced resistance; sustainable agriculture; plant defence activators; plant innate immunity; potato; late blight;

    Abstract : Abstract The oomycete Phytophthora infestans, which causes the devastating late blight disease of potato, is notorious for developing resistance to conventional control strategies (fungicide application and resistance breeding by introgression of R gene). To increase our tool box of disease management strategies available to combat P. READ MORE