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 3256 for “"mechanistic"”.
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Mechanistic Connectomics in Drosophila
Mechanistic Connectomics uses synaptic-resolution connectomes in a causal manner to explain circuit function. Multiple connectomes now exist for the adult fruit fly, \textit{Drosophila melanogaster}. This thesis develops statistics and analyses for Mechanistic Connectomics using these datasets to …
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Mechanistic Study of Pollutant Degradation
Environmental pollution has been a serious concern worldwide. Many degradation methods have been developed to clean sites contaminated with pollutants. More knowledge and better understanding in this field will help to protect our environment. The goal of the research in this thesis is to gain a …
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Mechanistic Studies in Tellurium Chemistry
The reduction of p-ethoxyphenyltellurium trichloride by sodium sulphite and metabisulphite has been investigated. The reactions have stoichiometries of one mol of p-EtOPhTeCl₃ to 1.5 and 0.75 mol of SO₃²⁻ and S₂O5²⁻ respectively. The paths of the reaction mechanisms with both reducing agents are …
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Mechanistic Studies in Ruthenium Chemistry
… to the formation of compounds of interest in mechanistic and photochemical studies. The synthesis of various Schiff base complexes of ruthenium (11) and (111) using the ligand N, N-ethylenebis (salicylideneimine) has been studied. Some complexes containing different unidentate ligands have …
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Mechanistic studies of organotellurium chemistry
The oxidation of bis(p-ethoxyphenyl) ditelluride by hydrogen peroxide has been studied kinetically. The reaction monitored was an oxidation from tellurium(I) to tellurium(II). The reaction stoichiometry ratio was found to depend upon the initial reagent concentrations. The presence of dioxygen was …
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Mechanistic studies of lanthipeptide biosynthesis
… described in chapters 6 and 7, provides mechanistic insights into these subtilisin-like proteins and reveals their potential as sequence-specific proteases. In addition, structural elucidation of four prochlorosins, a set of lanthipeptides synthesized by a highly substrate-tolerant …
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Mechanistic Aspects of Enantioselective Complexation
… is discussed. These CSPs, designed from mechanistic considerations, are useful in the separation of the enantiomers of a number of chiral amines, amino acid esters and amides, amino alcohols and alcohols. Solution-state NMR evidence, including intermolecular nuclear Overhauser …
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Mechanistic studies of ABC transporters
… different conformations. Multiple contradicting mechanistic models have been proposed based on biochemical and structural characterizations of different ABC transporters. The major issues of the controversy include, whether a common mechanism can be applied to all ABC transporter, and if not, …
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Mechanistic understanding of microbial desulfurization
The increasing global levels of sulfur content in crude oil have motivated the development of alternate desulfurization technologies. Microbial desulfurization or biodesulfurization (BDS) has gained interest due to the ability of certain biocatalysts to desulfurize compounds that are recalcitrant …
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Mechanistic Studies of Donor-Acceptor Cyclopropanes
Cyclopropane 1,1-diesters have been investigated as a source of donor-acceptor cyclopropanes, providing an understanding of the mechanism of reaction between these cyclopropanes and nitrosoarenes, as well as azo dicarboxylates. Cross-over experiments have been utilized to provide key pieces of …
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Mechanistic studies on mannuronan C5-Epimerase
The Pseudomonas aeruginosa algG gene product is a mannuronan C5-epimerase, which converts mannuronate to guluronate residues within the polysaccharide, alginate. The aim of this work was to purii' the epimerase and determine optimum reaction conditions for its enzymic activity. The epimerase was …
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Some Mechanistic Studies of Organotellurium Chemistry
The work in this thesis is concerned with the mechanistic study of some organotellurium compounds, especially the diaryl-ditellurides. The effect of visible irradiation on the diaryl ditellurides in solution cantaining alcohol is described. The photoreaction was found to proceed under aerobic …
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Mechanistic Studies of Rhodium Oxidation Catalysts
Over the past eight years a number of catalytic processes for the O(,2) oxidation of terminal olefins have been proposed to proceed through non-free radical, non-Wacker mechanisms involving the coordination of O(,2) and olefin to a rhodium(I) catalyst. One particularly promising system is the Rh/Cu …
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Mechanistic modeling of complex microbial communities
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms
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Mechanistic studies of the ClpAP protease/
CIpA, a member of the Hspl00/Clp subset of the AAA+ superfamily, is an energy-dependent chaperone, disassembling and remodeling its protein substrates. CIpA also serves as the ATPase component of the ClpAP protease, where it is resonsible for binding specific substrates and unfolding and …
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Automated Mechanistic Interpretability for Neural Networks
Mechanistic interpretability research aims to deconstruct the underlying algorithms that neural networks use to perform computations, such that we can modify their components, causing them to change behavior in predictable and positive ways. This thesis details three novel methods for automating …
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Mechanistic studies of a AAA+ protease
AAA+ proteases are present in all branches of life and responsible for the energy-dependent degradation of most cytosolic proteins. Substrates for AAA+ proteases are unfolded and translocated into a compartmental peptidase. The requirement for protein unfolding raises several questions. How easily …
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Spectroscopic and mechanistic studies of nitrogenase
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1996.
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