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 43 for “"Vls"”.
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Vapor-liquid-solid (VLS) growth of lead chalcogenide thin films for infrared sensing applications
… requirements. Adapting the vapour-liquid-solid (VLS) growth mechanism traditionally used for growing nanowires to growing PbSe thin films circumvents the very slow adsorption of a gas phase into a solid surface by introducing a catalytic liquid alloy phase, while simultaneously retaining the …
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Exploring influences on academic identity development: stories of Visiting Lecturers in post-’92 UK business schools
Visiting Lecturers (VLs) on hourly paid casual contracts are frequently employed in Higher Education Institutions (HEIs) for flexibility of staffing, cost benefits to the institution (Beaton and Gilbert, 2013; Bryson, 2013) and, depending on the subject, the value their practical experience brings …
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Cd44-Hyaluronic Acid Interactions in Il-2 Induced Vascular Leak Syndrome
… to development of vascular leak syndrome (VLS). Previous studies from our laboratory demonstrated that CD44 knockout mice exhibit marked decrease in IL-2 induced VLS, thereby suggesting a role for CD44 in VLS. In the current study we tested whether use of mAbs against CD44 or hyaluronic …
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Role of CD44 in Immune Functions and Endothelial Cell Injury
… cell injury resulting in vascular leak syndrome (VLS) is one of the most widely noted phenomenons in a variety of clinical diseases, however, the underlying reason for which remains unclear. We used interleukin-2 induced VLS as a model to investigate the role of cytolytic lymphocytes in the direct …
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Altered Vulvar Microbiomes in Vulvar Lichen Sclerosus
BACKGROUND: Vulvar lichen sclerosus (VLS) is a chronic and progressive dermatosis that most commonly affects the anogenital region of postmenopausal women. VLS etiology is incompletely understood, though a role for immune system dysregulation has been suggested given associations with autoimmune …
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Selective lateral nano-epitaxy for manufacturable nanowire electronics
… a comprehensive study on vapor-liquid-solid (VLS) growth of III-V planar nanowires and their electronic device applications. III-V materials, especially high-In-content InGaAs, are considered as a very promising n-channel material candidate for post-Si complementary metal-oxide-semiconductor …
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Planar GaAs nanowire arrays for nanoelectronics: controlled growth, doping, characterization, and devices
The Vapor-Liquid-Solid (VLS) mechanism is a bottom-up approach to produce one-dimensional semiconductor structures, or nanowires. VLS nanowires are formed via a chemical or physical deposition process, where a metallic nanoparticle (seed) facilitates the growth. Nanowire growth diameter is strongly …
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Vocabulary Learning Strategies Used by ESL Saudi Students in the United States
… findings indicated a weak correlation between VLS and the ATM, indicating that English language learners choice of VLS is influenced by their attitudes and motivations. Based on these results, further research is needed to investigate the relationship between VLS and the ATM with other …
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Utilizing ESL Learners’ Socio-Cognitive Resources to Enhance General Academic Vocabulary Acquisition
… the general vocabulary learning strategy (VLS) preferences of 41 ESL graduate students with a survey. Then with a sub-sample of nine ESL graduate students, in a collaborative setting. the study used a case study approach to determine the extent to which a VLS that utilizes the …
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Decay of correlations and inference in graphical models
… algorithms named the Vertex Least Squares (VLS), which is same as Alternating Minimization and Edge Least Squares (ELS), which is a message-passing variation of VLS. We provide sufficient conditions on the structure of the revelation graph for IP to succeed and show that when M has rank r = …
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Structure/processing relationships in vapor-liquid-solid nanowire epitaxy
… III-V nanowires using the vapor-liquid-solid (VLS) growth mechanism and low-cost Si substrates was investigated. The VLS mechanism allows fabrication of heterostructures which are not readily attainable using traditional thin-film metalorganic chemical vapor deposition (MOCVD). In addition to …
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Adaptive Evolution of Surface Proteins in Microbial Pathogens: Lyme Disease Pathogens (Borreliella sp.) and Human Immunodeficiency Virus Type 1 (HIV-1)
… chapter focused on antigenicity analysis of the VlsE protein in <em>Borreliella</em> bacteria. Conserved regions of VlsE were identified, and two of them were chosen for antibody development due to their strong antigenicity across host species. Four epitope-specific monoclonal antibodies were …
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Orientation Controllable Epitaxial Vapor-Liquid-Solid Semiconductor Nanowire Synthesis on Silicon Substrate
… synthesized via the vapor-liquid-solid (VLS) mechanism have attracted extensive research interest in recent years owing to their unique structure as a promising candidate for the future electronic devices. Germanium and silicon nanowires, in particular, are compatible with the current …
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The development and validation of a virtuous leadership scale
… and validate a Virtuous Leadership Scale (VLS). The current research study was a descriptive research design with a cross-sectional approach. Secondary quantitative data and primary qualitative and quantitative data was utilised by means of convenience sampling strategy and snowball …
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Doping of group IV semiconductor nanowires
… research has been reported on solution-based VLS growth of both Ge and Ge Sn NWs, although no literature to date has reported solution-based doping of VLS grown Ge or GeSn NWs. This thesis reports liquid-phase VLS growth and in-situ doping of Ge and GeSn NWs using a variety of dopant …
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English vocabulary learning applications and self-directed learning: how language learning theories and pedagogies underlying mobile applications designs influence users’ self-directed vocabulary learning behaviours
… with relation to vocabulary learning strategies (VLS), language learning theories and pedagogies, categorising them into distinct four categories. Students’ self-directed vocabulary learning behaviours and outcomes were subsequently investigated through a quasi-experiment, daily self-reports, two …
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Anaesthesia providers accessibility and usage of video
… the advent of video laryngoscopy (VL). Access to VLs for anaesthesia providers (AP) in operating theatres in South Africa has not previously been described, and the current usage is unknown. Methods We designed a cross-sectional survey investigating AP access and type of VL, as well as AP usage of …
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Array-based planar nanowire high electron mobility transistor
… Bottom-up grown NWs via the vapor-liquid-solid (VLS) mechanism are of particular interest for NW-FET application because the as-grown 3D NW structures require no lithography or chemical etching to define. However, fabricating bottom-up NW-FETs and circuits in wafer-scale is still in question. The …
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Optical properties of SiGe nanostructures
… Ge nanowires (NWs) grown via vapor-liquid-solid (VLS) using chemical vapor deposition silicon substrates consisting of (100) and (111) crystallographic orientations are reported. Ge NWs grown are ~40 nm in diameter, approximately a micrometer in length, and a sharp narrow Raman peak at ~300cm^{-1} …
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Planar nanowire high electron mobility transistor and down-scaling of planar nanowire
… resolve the electrical non-uniformity issues in VLS grown NW-FETs with doped NW channels. Growth optimization through mapping the parameters of group III flow, V/III ratio and temperature has also been successfully done for the realization of high-quality down-scaled planar GaAs NWs with widths …
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