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Occupational Aspirations And Migration: A Comparison Of Rural Youth With High, Medium, And Low Occupational Aspirations And Their Chances For Migration, W. Trevor Brooks
Occupational Aspirations And Migration: A Comparison Of Rural Youth With High, Medium, And Low Occupational Aspirations And Their Chances For Migration, W. Trevor Brooks
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
By using a social psychological approach, this research investigated whether occupational aspirations lead to migration. From the literature, we know that rural youth have lower occupational aspirations than their urban counterparts. We also know that rural youth often lower their occupational aspirations because of the confusion created between the benefits of moving for school and the attachment felt for home. We do not know, however the connection between occupational aspirations and migration. Are young to middle-aged adults in rural areas with higher occupational aspirations more likely to migrate out of rural areas than young to middle-aged adults with lower aspirations? …
Characterization Of Alloy C-276 As A Structural Material For High-Temperature Heat Exchangers, Narendra V Kothapalli
Characterization Of Alloy C-276 As A Structural Material For High-Temperature Heat Exchangers, Narendra V Kothapalli
UNLV Retrospective Theses & Dissertations
This investigation was focused on characterizing the high-temperature tensile behavior and corrosion susceptibility of nickel-based Alloy C-276, a leading structural material for heat-exchangers in nuclear hydrogen generation. The tensile properties, evaluated at different temperatures, indicate that both the yield strength and ultimate tensile strength were gradually reduced with increasing temperature. However, the ductility parameters were not significantly influenced by the testing temperature. While no failures were observed in stress corrosion cracking (SCC) tests in an acidic solution under a constant-load, the true failure stress (sigmaf) was significantly reduced under a slow-strain-rate condition using both smooth and notched specimens. The critical …
Effect Of A High Protein Diet On Glucose Tolerance In Rats, Roxanne Mary Sanchez
Effect Of A High Protein Diet On Glucose Tolerance In Rats, Roxanne Mary Sanchez
UNLV Retrospective Theses & Dissertations
The purpose of this study was to determine the effects of a high protein diet on glucose tolerance in the rat model. Nine Sprague Dawley rats received a high protein diet (65% protein, 35% fat) and eight rats consumed a standard chow diet over the course of eight weeks. An oral glucose tolerance test (OGTT) was performed at the end of the third and the seventh week to measure blood glucose and plasma insulin concentrations. The diet did not effect glucose tolerance in the first OGTT (t = 1.2095, p = .1226) or the second OGTT (t = -.9855, p …
Cfd Modeling Of Compact Offset Strip-Fin High Temperature Heat Exchanger, Sundaresan Subramanian
Cfd Modeling Of Compact Offset Strip-Fin High Temperature Heat Exchanger, Sundaresan Subramanian
UNLV Retrospective Theses & Dissertations
This thesis deals with the development of a numerical model to predict the overall performance of an advanced high temperature heat exchanger (HTHX) design, up to 1000°C, for the production of hydrogen by the sulfur iodine thermo-chemical cycle. The present study considers an offset strip-fin type compact high temperature heat exchanger made of liquid silicon impregnated carbon composite (SiC). The ceramic matrix composite material (CMC) is manufactured by impregnating the silicon into the pores of the carbon composites. The prototype heat exchanger is designed to operate at a thermal power of 50 MW. The design is an offset strip-fin, hybrid …
Development And Implementation Of A Multilevel High-Pressure Gas Model, Penio Delev Penev
Development And Implementation Of A Multilevel High-Pressure Gas Model, Penio Delev Penev
UNLV Retrospective Theses & Dissertations
The development of an accurate hydraulic model of a complex natural gas system is a great challenge for the engineers working to improve an existing system, determining a long-term system expansion or just performing every-day operational studies; This thesis reviews the fundamental concepts of network analysis, equations, solution techniques, model types, and their applicability; Further, the process of developing a multilevel model of a high-pressure natural gas system is described. Emphasis is given on the innovative concepts employed in the model development such as GIS integration, use of actual parameters for more accurate modeling of valves, regulators and compressors, derivation …
Test Preparation Strategies And Test Taking Strategies Use In Chinese High School Students, Yun Peng
Test Preparation Strategies And Test Taking Strategies Use In Chinese High School Students, Yun Peng
UNLV Retrospective Theses & Dissertations
This study investigated the use of test-preparation and test-taking strategies of 429 tenth graders from a key high school in Guangzhou, China. Differences in strategy uses among low-, medium-, and high-achieving groups were determined in two subject-matter areas (Chinese language and mathematics); Instruments used for data collection were the Test Preparation Strategies Questionnaire (TPSQ) and Test Taking Strategies Questionnaire (TTSQ), which examined students' strategy use in cognitive/metacognitive, motivational/emotional, environmental management areas; Results indicated that Chinese tenth graders memorized contents more often than other strategies while preparing for tests. Students planned their course of action for test preparation and selected study …
The Effects Of Scripted Instruction On Proper Foot Plant During A -Skip In A Practice High School Track And Field Setting, Darian Anthony Parker
The Effects Of Scripted Instruction On Proper Foot Plant During A -Skip In A Practice High School Track And Field Setting, Darian Anthony Parker
UNLV Retrospective Theses & Dissertations
Track and field is a sport that thrives on technique correction for skill acquisition (Mero, Komi and Gregor, 1992). Research in terms of approaches to improving skill acquisition and technique correction in novice high school track and field sprinters has been limited. Although recent efforts to improve skill acquisition in track and field have been effective (Hanin, Korjus, Jouste & Baxter, 2002 & Shestakov, Arakelian & Primakov, 2000), there does not appear to be any studies utilizing Gangstead and Beveridge's (1984) explicit instruction model as a way to improve skill acquisition for novice high school track and field sprinters. Explicit …
The Relationship Between Self-Esteem And Academic Achievement In High Ability Students: Evidence From The Wollongong Youth Study., Wilma Vialle, Patrick C. L. Heaven, Joseph Ciarrochi
The Relationship Between Self-Esteem And Academic Achievement In High Ability Students: Evidence From The Wollongong Youth Study., Wilma Vialle, Patrick C. L. Heaven, Joseph Ciarrochi
Faculty of Health and Behavioural Sciences - Papers (Archive)
The relationship between self-esteem and academic achievement is one that is regarded by many educators as a well-established fact. This belief has been often invoked in order to argue against the provision of ability grouping for gifted students. Refuting that commonly-held belief, this research examined the relationship between self-esteem and academic achievement in 65 high-ability secondary students, a sample drawn from a longitudinal study of over 900 students. The research demonstrated that there were no differences in measured selfesteem between the gifted and non-gifted students. More contentiously, though, the research found no correlation between self-esteem and academic achievement for the …
The Epididymal Soluble Prion Protein Forms A High-Molecular-Mass Complex In Association With Hydrophobic Proteins, Heath W. Ecroyd, Maya Belghazi, Jean-Louis Dacheux, Jean-Luc Gatti
The Epididymal Soluble Prion Protein Forms A High-Molecular-Mass Complex In Association With Hydrophobic Proteins, Heath W. Ecroyd, Maya Belghazi, Jean-Louis Dacheux, Jean-Luc Gatti
Faculty of Science - Papers (Archive)
We have shown previously that a 'soluble' form of PrP (prion protein), not associated with membranous vesicles, exists in the male reproductive fluid [Ecroyd, Sarradin, Dacheux and Gatti (2004) Biol. Reprod. 71, 993-1001]. Attempts to purify this 'soluble' PrP indicated that it behaves like a high-molecular-mass complex of more than 350 kDa and always co-purified with the same set of proteins. The main associated proteins were sequenced by MS and were found to match to clusterin (apolipoprotein J), BPI (bacterial permeability-increasing protein), carboxylesterase-like urinary excreted protein (cauxin), beta-mannosidase and beta-galactosidase. Immunoblotting and enzymatic assay confirmed the presence of clusterin and …
Consumer Preferences For Online And Offline Resources In The Process Of Buying A High Involvement Service Bundle: A Qualitative Exploration, Robert G. Grant
Consumer Preferences For Online And Offline Resources In The Process Of Buying A High Involvement Service Bundle: A Qualitative Exploration, Robert G. Grant
Faculty of Commerce - Papers (Archive)
Adding online resources to a promotional mix adds a new level of complexity to marketing communications. The challenge for marketers is to retain a focus on value delivery which requires understanding both main effects and interactions between communication and promotional methods. This paper reports a qualitative study preceding a non-discrete choice experiment simulation to research information source effects at different stages of the buying process for different service types.
Factors Associated With Trends In Bare Ground In High Country, Heather North, Kenneth G. Russell
Factors Associated With Trends In Bare Ground In High Country, Heather North, Kenneth G. Russell
Faculty of Informatics - Papers (Archive)
Soil erosion in the Canterbury high country has been a concern for many years, and Environment Canterbury wishes to encourage land management practices that will preserve soil quality and vegetative cover. Environment Canterbury brought to MISG2005 a data set spanning three decades of bare ground monitoring in the Canterbury high country, along with data on factors with potential to impact on the processes of revegetation. These include topographic and climate data, soil nutrient status and land management factors. The study group analysed these data with the aim of determining whether trends in bare ground can be predicted from the potential …
High-Temperature Creep-Deformation Behavior Of The Ni-Based Superalloy M963, Hongtao Zhu, Cheng Lu, A K. Tieu, Lizi He, Q. Zheng, X. F. Sun, Z. Q. Hu, H. R. Guan
High-Temperature Creep-Deformation Behavior Of The Ni-Based Superalloy M963, Hongtao Zhu, Cheng Lu, A K. Tieu, Lizi He, Q. Zheng, X. F. Sun, Z. Q. Hu, H. R. Guan
Faculty of Engineering - Papers (Archive)
The high-temperature creep-deformation behavior of a Ni-based M963 superalloy has been investigated over a broad stress range of 80 to 600 MPa at high temperatures (800 °C to 975 °C). The detailed dislocation configurations at different creep stages are examined through transmission electron microscopy (TEM). The results show that the deformation mechanism is stress and temperature dependent and mainly consists of three dislocation-controlling mechanisms: stacking faults and dislocation-pair shearing, dislocation bowing and Orowan looping, and dislocation climb.
Development And Characterization Of A High-Resolution Microspect System For Small-Animal Imaging, Yujin Qi, Benjamin Tsui, Yuchuan Wang, Brian Yoder, R Wojcik, S Majewski, A G Weisenberger
Development And Characterization Of A High-Resolution Microspect System For Small-Animal Imaging, Yujin Qi, Benjamin Tsui, Yuchuan Wang, Brian Yoder, R Wojcik, S Majewski, A G Weisenberger
Faculty of Engineering and Information Sciences - Papers: Part A
We developed a high-resolution microSPECT system and investigated its performance characteristics for small animal imaging. The microSPECT system consists of a stationary compact gamma camera with interchangeable pinhole and parallel-hole collimators and vertical object rotation mechanism. The modular camera is based on a pixellated NaI(Tl) crystal array with 1.2 mm pixel size and 1.4 mm pixel pitch coupled to a 5” diameter Hamamatsu R3292 PSPMT. The pinhole collimator has a 10cm focal length fitted with keel-edge pinhole apertures with diameters of 1.0, 1.5 and 2.0 mm. The system performance was characterized by the measurements of the point source response function …