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 31 for “"Depolymerisation"”.
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Theoretical aspects of motor protein induced filament depolymerisation
… specifically with filament ends and induce depolymerisation of the filament ends. One important role for KIN-13 family members is in the mitotic spindle, a microtubule structure that is formed in the process of cell division and is responsible for separation and distribution of the …
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Enzymatic polymerisation in situ of depolymerised mimosa tannin applied to stabilisation of collagen
… use of in situ enzyme-catalysed polymerisation. Depolymerisation of condensed tannins is presented as an alternative source of low molecular weight phenolics to be applied in the stabilisation of collagen. In this research, mimosa tannin from the Black Wattle tree (Acacia mearnsii) was used in …
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P21- ACTIVATED KINASE 4 AND ACTIN CYTOSKELETON DYNAMICS
… (LIMK), WHICH IN TURN, PHOSPHORYLATES THE ACTIN DEPOLYMERISATION FACTOR, COFILIN. COFILIN PHOSPHORYLATION RESULTS IN THE STABILISATION OF THE FILAMENTOUS FORM OF ACTIN. THE PRIMARY GOALS OF THIS PROJECT WERE TO 1) UNDERSTAND HOW THE KINASE DOMAIN OF PAK4 IS INHIBITED BY INCA (INDUCED IN NEURAL …
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An investigation of the prebiotic potential and gut health benefits of Irish seaweeds
… digitata were prepared to study the effect of depolymerisation with hydrogen peroxide on prebiotic potential. Depolymerisation significantly increased propionate production and reduced butyrate production. Modulation of polysaccharide chain length can bring about different fermentation profiles …
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A Study of the Role of Hydroperoxides in the Degradation and Stabilisation of Polymers
… generation of singlet oxygen; the latter causing depolymerisation of the polymer. The technological properties of the soft and viscid products thus obtained were also studied.
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DEVELOPMENT OF BIO-ACTIVE FOOD PACKAGING FILMS
… it was not accompanied by accelerated depolymerisation as all blended films shared similar rates of decline in molecular weight. The formulation of PCL/GSE using lower MW chitosan offers a promising avenue to strengthen antimicrobial and biodegradation efficacy of packaging films.
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Investigating the role of the cytoskeleton and signalling in the self-incompatibility response of Papaver rhoeas
… exhibit biphasic alterations during SI involving depolymerisation, followed by formation of F-actin foci. Studies described here represent the first steps toward characterisation of the F-actin foci. Their potential involvement in PCD and signalling is discussed.
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Uncovering the Importance of Cell Morphology, Genetic Regulation, and Neuronal Signalling in Quiescent Neural Stem Cells
… levels of mulet mRNA accelerate microtubule depolymerisation and disrupt NSC stability, affecting the reactivation. Thirdly, the neural signalling experiment investigated how different neuron signals affect NSC reactivation and quiescence. scRNA-Seq revealed that specific neurotransmitter …
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The binding of divalent cations to tobacco mosaic virus and to some isometric plant viruses
… of all four TMV strains at pH values where depolymerisation would normally have occurred. Both bromegrass mosaic virus and turnip crinkle virus bound calcium ions, which stabilised compact forms of these viruses. The phenomenon of cation binding is thus not limited to TMV. In the light of …
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A study of the thermal degradation of flexible tdi-based polyurethane foams
… by two competing mechanisms. The first involves depolymerisation of the urethane bond to yield TDI and polyol, whilst the second involves dissociation of the urethane linkages via a six-membered ring transition state to yield diaminotoluene (DAT), CO2 and alkene-terminated polyol chains. The …
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Identification of a mitogen-activated protein kinase, p56, which mediates the self-incompatibility response in Papaver rhoeas L.
… pyrophosphatase required for pollen tube growth, depolymerisation of the pollen actin cytoskeleton and ultimately programmed cell-death (PCD). To further understand the mechanisms involved in Papaver rhoeas SI it is important to identify and characterize components of the signalling network that …
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Molecular analyses of YhcN/YlaJ and spore-associated proteins involved in germination of Bacillus cereus spores
… from work associated with spore peptidoglycan depolymerisation concerns the function of hybrid cortex lytic enzymes. Mother-cell expressed SleB and forespore-expressed SleB-CwlJ hybrid proteins are capable of efficient cortex hydrolysis during germination and, additionally, can be activated by …
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A large scale analysis of chemoattractant induced cytoskeletal dynamics in Dictyostelium discoideum by means of proteomic and imaging approach
… is actin polymerisation at the leading edge, depolymerisation at the trailing edge and myosin II filament assembly and contraction in the back of the cell, which together drive the directional cell movement in the direction of the chemotactic gradient. One of the poorly understood aspects of …
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Charakterisierung von Scp160p, einem mRNA- und ribosomenassoziierten Protein in Saccharomyces cerevisiae
… Zytoplasma an die Membran transportiert. Nach Depolymerisation von Mikrotubuli ist die Assoziation von Scp160p mit der ER-Membran abhängig von aktiver Translation. Die beiden C-terminalen KH-Domänen von Scp160p werden zur Interaktion mit Polysomen, nicht jedoch zur Komplementation des …
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HPLC and mass spectrometry analysis of the free radical degradation of chondroitin sulfate and its implications in osteoarthritis
… mass spectrometry showed that the free radical depolymerisation of CS yielded an N-acetylgalactosamine (GalNAc) and a uronic acid with varied sulfation. This led us to investigate the possibility of other means of free radical generation with the potential to degrade CS. Alkaptonuria an …
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Epidermal growth factor receptor signalling regulates ommatidial rotation during Drosophila eye development
… well as genes involved in actin polymerisation/depolymerisation in this process. This study also describes the design of an F1 screen intended to identify new genes involved in ommatidial rotation. Preliminary results obtained in a pilot screen identified the Drosophila PDGF/VEGF receptor …
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Improving the bioconversion of lignocellulosic feedstock to bio-fuels and chemicals
… more effective a hydrolysis procedure is in the depolymerisation of complex polymers, the greater the accumulation of PHA in the PHA biosynthesis operations. The enhanced hydrogenic /acidogenic fermentation having effectively degraded the holocellulose component of the perennial rye grass …
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Degradation von historischem Celluloseacetat: Auswirkungen äußerer Einflüsse am Beispiel der Gläsernen Figuren sowie Vorschläge zu deren Erhaltung
… Additivmigration, Essigsäurefreisetzung und Depolymerisation signifikant reduziert und Auswirkungen auf andere Materialien vermieden werden. Die konkreten Empfehlungen werden dem Deutschen Hygiene-Museum Dresden als Teil eines Konzeptes zur präventiven Konservierung vorgeschlagen.
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Machine learning force fields for elemental sulphur
… solid phase, melting, polymerisation and depolymerisation of sulphur: an achievement out of reach of any previous method. We also dedicate considerable effort to investigating the liquid-liquid phase transition recently reported in the experimental literature [1]. This consists of a change …
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Investigating the origins of polyploidy in Barretts oesophagus and oesophageal adenocarcinoma
… in microtubule bundle formation following actin depolymerisation. This raised concern regarding the progression of the project and hence the decision was made to cease any further investigation.
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