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 199 for “"Catalyse"”.
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Using Cogenerative Dialogue To Catalyse Change
<p>Cogenerative dialogue is an empowering pedagogical approach to advance research. In my study cogenerative dialogue and coteaching were employed in an algebra 1 class in an urban high school in New York City. Lessons were cotaught with students and were videotaped for further analysis. The …
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La synthèse des amines par catalyse en phase aqueuse
… en amines secondaires en utilisant le concept de catalyse en phase aqueuse supportée. Le catalyseur Pd (PhCN) 2 Cl 2 complexé avec le sel dipotassique de l'acide dicarboxylique 2,2' -biquinoléine-4,4'-ligand (BQC) fournit un rendement de 97 % en dibenzylamine à partir du nitrile de départ, le …
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Supporting Classroom Inclusion: An Oracy Approach to Catalyse Learning Scientific Vocabulary
Understanding technical vocabulary is crucial for learning secondary science. Whilst all students may encounter challenges whilst learning technical vocabulary, those who are learning English may encounter additional challenges due to the language barrier posed by English-as-a-medium-of-instruction …
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The relationship between structure and specificity in the plant nitrilases
Nitrilases (EC 3.5.5.1) catalyse the enantioselective hydrolysis of a variety of organic nitriles to the corresponding amide and/ or carboxylic acid. These reactions are important in the manufacture of fine chemicals, pharmaceutical intermediates, plastics and paints. Industrial uses of nitrilases …
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The reaction between ferrocytochrome c and hydrogen peroxide
… mechanism. Copper ions have been found to catalyse reactions similar to that studied here. The effect of a copper histidine complex was therefore investigated on the reaction at pH 8.7. The copper complex was found to catalyse the oxidation of ferrocytochrome c by hydrogen peroxide and the …
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Dissecting the jasmonate singalling pathway in Arabidopsis thaliana
… genes in Arabidopsis thaliana. β-glucosidases catalyse the breakdown of glucosinolates into glucose and sulphate releasing toxic by-products which play a role in plant defence against insects and pathogens.
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Strategies to Roam Enzymatic Fitness Landscapes in Ultrahigh-Throughput
… peaks of high fitness, or, enzyme variants that catalyse a biotransformation of interest with high efficiency, is significantly dictated by the throughput of the screening approach. Increasing the throughput of enzyme screening has been greatly aided by the development of (water-in-oil emulsion) …
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Some reactions of methylsilane catalysed by metals
… chemisorption of methylsilane at 273 K, and the catalysed hydrogen isotope exchange in methylsilane in the range 195 - 300 K have been studied using evaporated metal films of molybdenum, tungsten, rhodium, nickel, and gold.Chemisorption is strong, and is accompanied by dissociation of hydrogen …
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Synthèse et propriétés de polyperfluoroolefines
… . Le mode d'initiation choisi fut la catalyse par des peroxydes ou d'autres agents pouvant se dissocier d'une façon homolytique pour donner des radicaux susceptibles d'introduire les groupements fonctionnels désirés dans les chaînes de polymères."
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Extending Highthroughput Technologies: The Automation of Mechanism Discovery Investigations into the mode and action of the thio-Michael Reaction
… process, in which the product may catalyse collapse of one observable intermediate to the product. The exact mode of this autocatalytic step is not clear at present, but is the subject of ongoing studies as is the generality of this new mechanistic insight into the Michael addition …
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An exploratory study of project financing urban infrastructure
… the rate of shelter provision as well as to catalyse the eradication of slums. Project finance was investigated through interviewing selected participants, based on their role in the infrastructure provision sector. The outcomes indicated that project finance is an appropriate tool due to its …
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The development and improvement of biocatalytic reactions
… processes. Biocatalysis, using enzymes to catalyse a chemical reaction, is emerging as an economical and ecological production route for a wide range of fine chemicals, pharmaceuticals and food ingredients. In addition to biocatalysis, miniaturised chemistry has also become of interest and …
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The yeast mediated synthesis of the l-ephedrine precursor, l-phenylacetylcarbinol, in an organic solvent
… first step utilises fermenting yeast in water to catalyse the acyloin condensation of benzaldehyde and acetaldehyde to form the l-ephedrine precursor, l-phenylacetylcarbinol (l-PAC). The second step involves the reaction of l-PAC with methylamine to form the corresponding N-methyl imine; the final …
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The kinetics of endosome processing
… is studied by using the ability of HRP to catalyse the crosslinking of membrane marker in endosomes with DAB (3,3'-diaminobenzidine), rendering the membrane marker detergent insoluble. To study the kinetic behaviour of membrane marker, radioactive galactose was covalently bound to …
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Quaternary structures of the cyanide dihydratases of Bacillus pumilus C1 and Pseudomonas stutzeri AK61
Nitrilases catalyse the conversion of a nitrile to its corresponding acid and ammonia by the addition of two water molecules. Cyanide dihydratases, a subgroup of nitrilases, specifically hydrolyse cyanide to formic acid and ammonia. Nitrilases are found in a diverse collection organisms that …
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Centering the periphery: Re-framing East London central business district towards social & spatial equality
… a inclusive CBD. This research further aims to catalyse the rejuvenation of East London CBD from its current derelict and decaying state, encouraging social and private investment back into East London CBD.
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Sequence selectivity of the resolvase catalytic domain: implications for Z-resolvase design
… in the design of Z-sites or can a Z-resolvase catalyse recombination on sites with an odd number of bases between Zif268 binding sites i.e. one half-site longer than the other, what is the relative influence of the Z-resolvase linker length, and can Z-resolvase be complemented by resolvase and …
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Screening for novel cold-adapted nitrile hydratases in Antarctic metagenornic libraries
Nitrile hydratases (NHase) catalyse the hydrolysis of nitriles to their corresponding amides, the first step in the nitrile degradation pathway. The second step is the conversion of the amide to a carboxylic acid, catalysed by an amidase. The NHases published to date have been isolated from …
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A combined approach of electronic structure calculations and spectroscopy for elucidating reaction mechanisms in organic and bioinorganic systems
… by which [FeFe] and [NiFe] hydrogenase enzymes catalyse the reversible reduction of protons to dihydrogen are of intrinsic interest in the context of a developing hydrogen technology for energy transduction. Gas phase DFT calculations are used to simulate and assign structure to experimental …
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Water First : a political history of hydraulics in Vietnam's Red River Delta
… infrastructure was an important component, could catalyse growth in the rural economy, which could then finance industrialisation. I argue throughout this thesis that developing large-scale hydraulic infrastructure in the Red River delta has relied upon the creation of a hydraulic bargain between …
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