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 520 for “"stopped"”.
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Computer interfaced stopped-flow kinetics
Stopped-flow kinetics is a method in which two reactants are forced into a mixing chamber and their flow abruptly stopped. The progress of the reaction is monitored at an observation window, a short distance from the chamber along the flow path. Traditionally, data from the stopped-flow has been …
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Automated Analysis by Stopped-Flow Methodology
Extensions to the stopped-flow analyzer have been developed that demonstrate capabilities which offer the stopped-flow method as an attractive alternative for dedicated chemical analysis. The instrumentation has been designed to expand the versatility of the stopped-flow method, exploiting its …
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The Music Never Stopped: Shifting Notions of Authenticity Amongst Deadheads
The purpose of this study is to explore the concept of subculture and its meanings in today's discourse. I will also examine the post-subculture concept of neo-tribe and the differences between the two concepts. It is also my intention to show how subcultural groups undergo crises of authenticity …
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Automated Clinical/analytical Methodologies Developed for a Stopped-Flow Spectrophotometric System
Made available in DSpace on 2014-12-13T20:10:25Z (GMT). No. of bitstreams: 1 7820983.pdf: 7729717 bytes, checksum: d08b7f2b6a85c850a4a76aaa271ee1dc (MD5) Previous issue date: 1978
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A Stopped-Flow Analyzer for Kinetic Methods Development - Automated Implementation of Guggenheim's Methods
… single-beam spectrophotometer into a versatile stopped-flow kinetic analyzer. A relatively inexpensive microcomputer system serves as a dedicated controller/data processor for the instrument. The design employed features preservation of the optical configuration and geometry of the original …
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Detecting, tracking, and warning of traffic threats to police stopped along the roadside
… continue to injure or kill police personnel stopped on the roadside at an alarming rate. We have proposed to reduce this problem through a "divert and alert" approach, projecting lasers onto the road surface as virtual flares to divert incoming vehicles, and alerting officers of dangerous …
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Clinical-Scale Hyperpolarization of 129Xe and 131Xe via Stopped-Flow Spin Exchange Optical Pumping
… keeping polarizations high, particularly in a “stopped-flow” polarizer environment. This dissertation is divided into eight main chapters. The first chapter is written to provide a historical context for the SEOP field and summarize the evolutionary stages that have led to current methodologies. …
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“Why Has She Stopped Reading?” The Case for Supporting Reading for Pleasure in Secondary Schools.
The aim of this study was to investigate why some children, who engage in reading for pleasure at primary school, stop reading once they have transitioned to secondary school. The study followed eight students from their last term of Year 6 primary education (10 to 11 year-olds) through to the end …
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Comparison of stopped delay between field measurements and HCM 2010 estimations at actuated signalized intersections
… intersections using field data. The HCM stopped delay estimates were statistically compared with the field measurements for six signalized intersections along an actuated-coordinated corridor during four time periods of day, namely AM peak, off peak, noon peak, and PM peak. Overall, the …
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Development and Characterization of a Stopped-Flow-Bypass Analysis System With Applications To Biochemical Measurements
A new apparatus called Bypass Trapped Flow Analysis System (ByT-FAS) is described. A properly designed ByT-FAS gives an analyst the ability to use analyte sample volumes of 10 to 200 μL [or more] and reagent volumes of approximately the same size. The sample and reagent are injected into their …
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The Primary Prevention: What’s causing the rise in Type 1 diabetes—and can it be stopped?
Decades of research have failed to identify the environmental factors behind rising rates of Type 1 diabetes. However, the search has made Type 1 diabetes one of the best studied autoimmune diseases, with a network of clinics and laboratories dedicated to understanding the interplay of genetic and …
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Investigation of the Structure and Kinetics of Heme-Containing Proteins Using Magnetic Circular Dichroism and Rapid-Scan, Stopped-Flow Spectroscopy
… (UV-Vis) electronic absorption and rapid-scan, stopped-flow spectroscopies were utilized to determine reaction mechanisms and kinetics data. Due to the chromophore properties of heme-containing proteins, magnetic circular dichroism (MCD) spectrophotometry was used to determine structural aspects …
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An Automated Spectrophotometric Stopped-Flow System for Reaction-Rate Measurements and Application to the Rapid Quantitative Determination of Phosphate in Soil and Water Samples
Made available in DSpace on 2014-12-10T23:01:27Z (GMT). No. of bitstreams: 1 7309916.pdf: 8180279 bytes, checksum: d7a6d2dfcd2901443949146ca66290d2 (MD5) Previous issue date: 1972
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“…she hit me and we stopped, she was yelling and screaming at me”: An exploration of the perceptions, identities and stigma of men and domestic violence
Domestic violence is a prevalent and important global social issue. This thesis is unique as it seeks to mobilize knowledge of male perceptions and experiences of domestic violence by giving voice to a rather silenced, invisible, and often neglected group of individuals. Through face-to-face …
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Applications of Connected Vehicle Technology to Address Issues of School Bus and School Bus Stop Safety
… bus safety is the issue of illegally passing a stopped school bus. To improve safety around stopped school buses, this dissertation presents a Concept of Operations for a connected vehicle application to improve safety around stopped school buses using Dedicated Short Range Communication. The …
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Evaluating Police Presence and Police Stops in Schools: Outcomes for Adolescent Mental Health
… I examine whether the presence, being stopped, and witnessing stops by police at school are associated with adolescent depression and anxiety symptoms and how school connectedness and race/ethnicity moderate these associations. Data were obtained from the most recent wave of data …
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Vízkezelési eljárásokban képződő toxikus vegyületek analízise kromatográfiás módszerekkel
… keresztül. Az N-monoklóraminosav képződése a stopped-flow készülék holtideje alatt lejátszódik, így már csak abszorbancia ugrásként tudtuk detektálni. Az N,N-diklóraminosav megjelenését, majd bomlását stopped-flow módszerrel tudtuk nyomon követni. Hosszabb időskálán a hipoklórossavat …
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Early Events in the Folding of the Protein Ubiquitin
… technique and by low temperature stopped flow mixing. In the case of the T-Jump, initially cold denatured protein solution is rapidly heated with a 20 nsec heating pulse. The subsequent refolding is monitored by time resolved fluorescence lifetime and spectrum. In the case of …
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Story of the Tierra Psycho
… sky appeared and all known electrical power stopped. The characters must move to survive as wild fires rage the mesa, wilderness, and riverside landscape.</p>
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Kinetics and Mechanism of Syn, Alpha' Lithiation of Tertiary Benzamides
… reso- nance, freezing point depression and stopped-flow infrared spectros- copy indicates the reaction proceeds with rapid initial formation of tetrameric complexes followed by rate determining deprotonation. Model studies using N,N,N',N'-tetramethylethylenediamine (TMEDA)
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