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 1441 for “"Physical Sciences and Mathematics"”.
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Structure vs. Properties Using Chemical Graph Theory
… to bring together the areas of the Physical Sciences and Mathematics. Through its use, mathematicians are able to model chemical systems, predict their properties as well as structure-property relationships. In this dissertation, we consider two questions involving chemical graph …
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Reactions for rapid access to C3a oxygenated pyrroloindolines and its application towards a novel route to pestalazine A
… (Bobbitt’s salt) rapidly reacts with tryptamine and tryptophan derivatives to provide the C3a oxygenated pyrroloindolines. These conditions exclude the use of expensive transition metal catalyst, LED lamps and long reaction times. This new method wasa then utilized in a synthetic study on the …
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EXPANDING THE POTENTIAL PRENYLOME: PRENYLATION OF SHORTENED TARGET SUBSTRATES BY FTASE AND DEVELOPMENT OF FRET-BASED SYSTEM FOR DETECTING POTENTIALLY “SHUNTED” PROTEINS
… protein substrates, but recent studies in yeast- and mammalian-based systems have demonstrated FTase can also accept sequences that diverge in length from the canonical four-amino acid motif, such as the recently reported five-amino acid C(x)3X motif. In this work, we further expand the substrate …
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Structural and Functional Insights into Ghrelin Acylation by Ghrelin O-Acyltransferase
… by the stomach that acts as the endogenous ligand for the GHSR1a G-protein-coupled receptor. This 28 amino acid peptide stimulates appetite and has been associated with the cardiovascular, gastrointestinal, neuroendocrine, and immune systems. Ghrelin requires a unique posttranslational …
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Spectroscopy versus turbidity: non-invasive in vivo monitoring of living systems
… a methodology for real-time probing of chemical and physical changes in spinal cords in the immediate aftermath of a localized contusive injury by way of calculating pH to monitor physiological changes in the system. Utilizing a previously developed unique algorithm, line scans of injured cords …
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Elucidating Dopant Migration Mechanism for the Controlled Dopant Locations/Distribution within Core/Shell Nanocrystals
<p>Understanding the fundamental principles behind transition metal ion doped semiconducting materials has drawn immense interest when designing ideal systems for use in optical and electronic devices. Dopant ions have been found to diffuse/migrate throughout solid materials when the thermal energy …
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Fluidization and Segregation in Confluent Models for Biological Tissues
… more specifically a tissue's ability to fluidize and segregate, is imperative for proper embryonic development and normal physiological functioning. In this thesis, I use vertex models to understand how cell-scale properties govern large-scale collective behavior. I begin with the process of …
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Investigating the Relationships Between Disorder, Structure, and Dynamics in Amorphous Systems
… relationships between the disorder, structure, and deformation in amorphous materials. First, to understand the surprising low-frequency vibrational modes in structural glasses, and how it arises from the microscopic disorder in the system, we study the spectra of a large ensemble of sparse …
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Laboratory Studies of Structural Changes in Water-Poor and Water-Rich Ices: A Connection to Molecule Formation in Interstellar Ices
… at the Syracuse University Astrophysics and Surface Science Laboratory on structural changes of analogs of ice mantles that cover dust grains in dense clouds in the interstellar medium. We present the experimental and analytical techniques that we used and the motivations for the …
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Pi+ Cross Section on Argon for the LArIAT Experiment
… 50-1100 MeV, accounting for background species and reconstruction effects. This is the first such measurement of this process. The result can be useful in tuning simulations for future liquid argon experiments such as DUNE and SBN.</p>
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Strongly coupled fermions on the lattice
… structure of theories such as QCD and have also helped in exploring the phase structure and classification of phase transitions in a variety of other strongly coupled theories of interest to both high energy and condensed matter theorists. The lattice approach to QCD has led to an …
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Fabrication and Characterization of Superconducting Metamaterial Resonators
… artificial metamaterials have yielded microwave and optical systems with numerous counterintuitive properties, including left-handed transmission, where the group velocity and phase velocity for a wave point in opposite directions. Metamaterial resonators implemented with superconducting …
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Development of explicitly correlated and many-body diagrammatic techniques for the investigation of electron-hole correlation in nanomaterials
… that will accurately describe electron-electron and electron-hole correlation in nanoparticles using many-body diagrammatic techniques. Diagrammatic representation is a more complex representation of quantum mechanics, however, it becomes a more advantageous representation in its application to …
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Photolysis Kinetics of Aromatic Pollutants in Liquid and Solid Environmental Condensed Phases
… can differ significantly depending on the physical state (i.e. solid or liquid) and composition. Many laboratory studies that investigate reaction kinetics in condensed phases are done under simplified conditions that do not accurately reflect the complexity found in the environment. I have …
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Viscoelastic Strain, Viscous Rheology, and Behavior of Experimental Lava Flows
… a predominant resurfacing mechanism of planets and natural satellites and a natural hazard to populations living within volcanically active regions on Earth. Pāhoehoe lava flows are also thought to be integral components of flood basalt provinces, which are the largest known lava accumulations …
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Design and Application of Transition Metal Complexes for Catalysis
… are accounts of fundamentally different projects and topics. The content of the research to be elaborated on is divided into the following 3 chapters: The focus of the first chapter, under the tutelage of Dr. Daniel Clark, details the discovery and optimization of an unusual ruthenium complex …
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The detection and parameter estimation of binary black hole mergers
… data analysis techniques for binary neutron star and black hole mergers. During its first observing run, the Advanced Laser Interferometer Gravitational-wave Observatory (Advanced LIGO) reported the</p> <p>first, direct observations of gravitational waves from two binary black hole mergers. We …
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Exploration of Transition Metal Catalyzed C−C and C−N Bond Formation to Access Synthetically Elusive Small Molecules
… small molecules, especially in the realm of C–C and C–N bond formations. The scope of reactions discussed revolve especially around ruthenium and palladium catalysis, accessing underexplored heterocyclic motifs. The utility of these techniques toward the synthesis of small molecules in drug …
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The Bio-Nano Interface: Investigating the Roles of Nanoparticle Morphology, Microstructure, Optoelectronic Properties, and Surface Chemistry for Biological Applications
… these materials have highly tunable optical and electronic properties that depend on the nanocrystal size, shape, and composition. Because of these properties, QDs are potentially useful for applications such as LEDs, lasers, in-vivo and in-vitro imaging, and other sensing technologies. The …
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