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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 2617 for “"precursor"”.
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Optical Precursor Behavior
… It was previously believed that optical precursors, a specific transient effect, existed only for only a few optical cycles and contributed only small magnitudes to the field. The main results of this thesis show that the transients arising from this integral are entirely precursors and …
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Awe: A precursor to something more
… this study still implicates awe as an emotional precursor to social exploration.
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A Transmembrane Precursor of Secretory Component
… of cells, SC is made as a single larger precursor with an approximately 15 kilodalton cytoplasmic domain. In pulse-chase experiments, the carbohydrate moieties of the precursor are first converted to the complex type and the precursor is then proteolytically cleaved to a form slightly …
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Precursor phases in non-classical crystallization
… different from metastable polymer-induced liquid precursors. The combination of atomic force microscopy, small angle scattering, and ξ-potential measurements confirms the coexistence of monomers and Glu/PEI complexes and the aggregation of complexes in Glu-PEI-water systems. This suggests that …
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Precursor-Directed Identification of Natural Product Scaffolds
… pathways. As proof of principle our precursor directed methodology was used in the study of discoipyrrole A formation, the guided isolation of a novel iminoquinone and the detection of a novel ammosamide analog via incorporation of a carbon-based nucleophile.
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Bacteriuria as a Precursor of Intracatheter Encrustation
<p>The problem with which this study was concerned was the development of criteria that could be used to determine when urinary catheter changes were necessary. By determining when encrustation occurred, it was felt that some complications could be eliminated by changing catheters before …
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Relationships Among Precursor and Mature Ribosomal-Rna's
Made available in DSpace on 2014-12-11T18:16:51Z (GMT). No. of bitstreams: 1 7310058.pdf: 2882415 bytes, checksum: a73879088b596c69e513bbcdfce5e3ec (MD5) Previous issue date: 1972
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Oligodendrocyte precursor cell states and their regulation
Oligodendrocyte precursor cells (OPCs) differentiate into myelinating oligodendrocytes throughout life, allowing the formation of myelin during early development, but also following learning or demyelinating injuries. A number of factors are thought to regulate OPC proliferation and …
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Reactivity estimation using delayed neutron precursor smoothing
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1989.
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Lunar Robotic Precursor Missions Using Electric Propulsion
… of electric propulsion based lunar robotic precursor missions. The focus is to understand the relationships between payload mass delivered, electric propulsion power, and trip time. The results are compared against a baseline system using chemical propulsion with LOX/H2. The major …
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Total N-nitrosamine Precursor Adsorption with Carbon Nanotubes: Elucidating Controlling Physiochemical Properties and Developing a Size-Resolved Precursor Surrogate
… of carbon nanotubes (CNTs) for removal of DBP precursors, with an emphasis on total N-nitrosamines (TONO). </p> <p>Batch experiments with CNTs were completed to assess adsorption of THM, DHAN, and TONO precursors; physiochemical properties of CNTs were quantified through gas adsorption …
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Neuartige Precursor zur Abscheidung von Selten-Erd-Oxiden
… bzw. Oxidchloriden. Es wurden verschiedene Precursorsyteme für die Abscheidung von Selten-Erd-Oxid-Dünnschichten auf einer Silicium-Oberfläche auf Basis von Nitrat-Solvaten entwickelt und untersucht. Durch Aufbringung des in organischen Lösungsmitteln gelösten Precursors konnten …
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Anorganische Precursor zur Abscheidung und Strukturierung von Gold
… Eigenschaften der Verbindungen und ihr mögliches Precursorpotential gelegt. Durch einen speziell entwickelten Prozess werden die Precursor in einem elektronenstrahlgestützten Depositionsverfahren zersetzt und auf Silicium-Wafern strukturiert abgeschieden. Die geschriebenen Metallstrukturen sind …
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Writer María Luisa Garza: Precursor of Hispanic Feminism
The beginning of the twentieth century marked a period of change for women; many Mexican were affected by the Mexican Revolution, Temperance and modernity. María Luisa Garza, an exiled elite woman, wrote and traveled between Texas and Mexico during this time. This dissertation takes a closer look …
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Walt Whitman as a Precursor of Frederick Jackson Turner
No abstract prepared.
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Precursor to conflict: the cultural re-coding of Serbia
This thesis examines the origins of the conflict which engulfed the former Yugoslavia in 1991. Findings will indicate that the violence within this culturally diverse and historically multi-ethnic region of Europe was not driven by ancient ethnic sentiments, nor was it a 'civil war' between …
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Processing of Alzheimer's amyloid precursor protein in cultured cells.
… kDa beta-amyloid peptide (betaA4), from amyloid precursor protein (APP), is a key pathology in Alzheimer's disease (AD). The single APP gene is spliced to give 3 major isoforms. In the majority of body tissues, the most common APP isoforms are APP[751] and APP[770], which both contain a Kunitz …
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