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 18 of 18 for “"XES"”.
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Chemical Mixtures of Xenoestrogens and Their Metabolites Alter Estradiol-Induced Non-Genomic Signaling
BACKGROUND: Xenoestrogens (XEs) pose a threat to human health by disrupting natural responses of physiologic estrogens. Bisphenol-A (BPA), a plastics monomer, is potently estrogenic via non-genomic signaling; however, bisphenol-S (BPS), a BPA substitute, has unknown endocrine actions. Nonylphenol …
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Operando Characterization of Lithium-Ion Batteries using Lab-Scale X-ray Emission/Absorption Spectroscopy
… techniques such as X-ray Emission Spectroscopy (XES) and X-ray Absorption Fine Structure (XAFS) perform this role well through the generation/quenching of core holes in the sample. Laboratory-based core hole x-ray spectroscopy techniques have recently gained popularity as they are more accessible …
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Density Functional Theory augmented Multiplet Ligand Field Theory Applied to X-ray Spectroscopy of 3d Transition Metals
… to core-to-core X-ray emission spectroscopy (CtC-XES), exploring how the charge transfer dynamics are affected by the core-hole in the intermediate and final states. In this work, I surveyed 8 different 3d transition metal systems across the periodic table and analyze how calculated spectra …
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The direct effects of estradiol and several xenoestrogens on cell numbers of early- vs. late-stage prostate cancer cells
… cancer cells. Then several xenoestrogens (XEs) were evaluated for their ability to increase or decrease prostate cancer cell numbers. Coumesterol and genistein unexpectedly stimulated prostate cancer cell growth, while resveratrol minimally increased cell numbers in both early and …
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The nongenomic effects of physiological and environmental estrogens on dopamine transporter function
… (E1), and estriol (E3)] and xenoestrogens (XEs), such as organochlorine pesticides [dieldrin, endosulfan, and o¡¯,p¡¯-dichlorodiphenylethylene (DDE)], plastics manufacturing by-products/detergents (nonylphenol, bisphenol A), and the synthetic estrogen DES for effects on DAT function. We …
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Cinética de crecimiento de Siliciuro de Iridio mediante RTP
… (RBS, TEM, Espectroscopía Auger, XRD, SIMS, XES y Espectroscopía Raman) a un conjunto de muestras de diferentes espesores iniciales y sometidos a tratamientos térmicos a distintas temperaturas y tiempos de proceso, ha sido posible identificar las diferentes fases que se forman para el sistema …
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Experimental and theoretical investigation of the electronic structures of ferrocene-peptide conjugates
… Soft X-ray absorption (XAS) and emission (XES) spectroscopy using synchrotron radiation are used to probe the unoccupied and occupied partial densities of electronic states, respectively. The identities of the finalstate orbitals corresponding to all near-edge features in the XAS spectra of …
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Spectroscopic characterisation of novel materials for semiconductor device applications
… GAS) and x-ray emission spectroscopy (XES) as well as resonant soft X-ray emission spectroscopy (RSXE) have been used to provide information on the valence band and conduction band state of both the CDO layers and the fluorocarbon films. The final part of the thesis consists of the …
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Electronic properties and surface chemistry of vanadium oxide systems: New insights from synchrotron X-ray techniques
… (XAS) and X-ray emission spectroscopy (XES) studies were performed on VO2/Al2O3 films, doped with varied levels of Cr or Nb which respectively increased and decreased MIT temperature. XAS was carried out at two different X-ray incidence angles and at temperatures above and below the MIT …
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The effect of using computer-based library management system on information provision in University libraries:The case of University of Zambia Library
… compuXex-\>as>e& \MS> aX serves secX\otv \va& xes\2\Xe& m improved information provision to library users 5) investigate whether using computer-based system had an effect on information access by library users. Using a qualitative research design, the study revealed that using computer-based …
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The effect of using computer-based library management system on information provision in University libraries:The case of University of Zambia Library
… compuXex-\>as>e& \MS> aX serves secX\otv \va& xes\2\Xe& m improved information provision to library users 5) investigate whether using computer-based system had an effect on information access by library users. Using a qualitative research design, the study revealed that using computer-based …
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The Bulk and Interfacial Electronic and Chemical Structure of Amorphous Hydrogenated Boron Carbide
… x-ray absorption/emission spectroscopies (XAS/XES). These methods were used to investigate the chemical species, bonding and hybridizations, and band gaps of a-BxC:Hy prepared or treated under varying conditions. Additionally, a detailed examination of the formation of Schottky barriers was …
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Investigation of the properties of iron-bearing alloys and silicates and their implications for the Earth’s lower mantle and core
… derived from the results of X-ray emission (XES) and nuclear forward scattering (NFS) spectroscopic studies of Fe-bearing silicate perovskite are not in agreement on the pressure and temperature conditions of the transition and on whether Fe2+ or Fe3+ or both iron cations are involved. We …
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Understanding and Exploiting Anion Redox Process for High Energy Density Positive Electrode Materials for Li-ion Batteries
… absorption and emission spectroscopy (XAS and XES), X-ray photoelectron spectroscopy (XPS), coupled with density functional theory (DFT) calculations. We have shown electronic signatures of oxygen-oxygen coupling, direct evidence central to lattice oxygen redox (O²⁻/(O₂)ⁿ⁻), in charged Li₂₋ₓ …
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EXPLORING THE ROLE OF METAL VARIABILITY IN MOFS USING SYNCHROTRON RADIATION TECHNIQUES
… X-ray-based techniques including XRD, XAS, XES, and RIXS. Together, these techniques confirmed the formation of Fe(II) active sites at elevated temperatures, facilitating MTM conversion. Catalyst deactivation is attributed to CH3• escape, leading to the formation of Fe3O(OMe) and Fe3O(OH) …
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Automated refactoring for Java concurrency
… in a tool, CTADetector, that finds and fi xes misused check-then-act idioms. We applied CTADetector to 28 widely used open source Java projects (comprising 6.4 million lines of code) that use Java concurrent collections. CTADetector discovered and fixed 60 bugs. These bugs were con firmed …
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Energy-domain synchrotron radiation Mössbauer source for physics under extreme conditions
… to be probed: X-ray Emission Spectroscopy (XES), X-ray absorption near edge structure (XANES), Nuclear Resonance Spectroscopes, etc. For elements in which observation of Mössbauer effect is possible the most mature, sensitive, and suitable technique for studies of magnetic and electronic …
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Ultrafast electron transfer and intersystem crossing in bimetallic molecules
Increasingly, the role of electron spin is an important topic in electron transfer (ET). Coupling between the electronic, spin, and nuclear degrees of freedom play an important role in driving ET and intersystem crossing (ISC) on the ultrafast timescale. In this thesis, ultrafast optical and X-ray …