http://hdl.handle.net/123456789/1304 Sat, 04 Mar 2023 06:53:52 GMT 2023-03-04T06:53:52Z http://hdl.handle.net/123456789/2138 Title: Derived Catagories in algebraic geometry and motivic decomposition Authors: Dutta, Uttaran Abstract: Abstract not available Fri, 01 Apr 2022 00:00:00 GMT http://hdl.handle.net/123456789/2138 2022-04-01T00:00:00Z http://hdl.handle.net/123456789/2137 Title: Cloning, expression, purification and characterization of thermophilic enzymes catalyzing plant biomass degradation Authors: Aarushi, Naskar Abstract: With the ever-increasing demand for food and crops, which are the primary source of production of 1st generation biofuels, the world is moving towards 2nd generation biofuels. The most abundant constituent of biomass, cellulose, is a regenerating source of biomass energy, however, it is present in a meshwork of lignin and hemicellulose, which are complex polymers and hence rigid and recalcitrant. Thus, the most essential step in the generation of 2nd generation biofuels from biomass is efficient enzymatic depolymerization. Thermophilic and hyperthermophilic cellulases which are very advantageous, owing to their ability to survive high temperatures, could be the best candidates for cellulose depolymerization. Here, we discuss our efforts to clone, express, purify and characterize some of the most potent and effective thermostable cellulases from the genome of Clostridium thermocellum and Pyrococcus furiosus. Through structural characterization, most of the enzymes were observed to be thermostable as well as resistant to chemical denaturation by urea and guanidine chloride. We also describe the attempts to study their activity on the substrate carboxymethyl cellulose with varying temperatures. Fri, 01 Apr 2022 00:00:00 GMT http://hdl.handle.net/123456789/2137 2022-04-01T00:00:00Z http://hdl.handle.net/123456789/2136 Title: Influncing Opinion evolution over finite time horizons Authors: Omanwar, Ananya S. Abstract: We consider an extension of the voter model and study the evolution of a fixed as well as a growing population over a finite time horizon, in presence of an external influencing agency. Opinion models with external influence are increasingly relevant to the current form of social interactions, especially on online social media platforms. Short term opinion polls and focused advertising are fairly common phenomena on these social networking sites. Building on the existing work for a constant population model, we obtain optimal strategies for the influencing agency (with limited budget) in terms of when to influence. In other words, given that the external agency can influence only a fraction of total time-slots, depending on the behaviour of the individuals in the population, we determine which time- slots should be influenced in order to maximise the expected fraction of favourable opinion at the end of the time horizon. Fri, 01 Apr 2022 00:00:00 GMT http://hdl.handle.net/123456789/2136 2022-04-01T00:00:00Z http://hdl.handle.net/123456789/2135 Title: Elucidating the role of yes-associated protein in the retina regeneration of mice and zebrafish Authors: Chakraborty, Supriya Fri, 01 Apr 2022 00:00:00 GMT http://hdl.handle.net/123456789/2135 2022-04-01T00:00:00Z