Digital Commons Network^™

Traffic Noise Decreases Body Condition And Stopover Efficiency Of Migrating Songbirds, Heidi Elise Ware

Boise State University Theses and Dissertations

Numerous studies document impacts of roads on wildlife, and suggest traffic noise as a primary cause of population declines near roads. For migratory birds faced with increasingly human-altered habitats, noise may pose a serious threat. Using an array of speakers, we applied traffic noise to a roadless landscape, directly testing the effect of noise alone on an entire songbird community. Focusing on individuals that stayed despite the noise, we demonstrate that songbirds show a near halving of ability to gain body condition when exposed to traffic noise during migratory stopover. This marked degradation in stopover efficiency may help explain dramatic …

Ciliates Of Sagebrush-Steppe Soils Of Southwestern Idaho: Species Richness And Its Relationship To Changed Soil Variables After Wildfire Events, Laura G. Wendell

Boise State University Theses and Dissertations

I conducted a pilot study to examine species richness of terrestrial ciliates associated with big sagebrush habitat (Artemisia tridentata) in southwestern Idaho, USA. As wildland fires are a naturally occurring disturbance in this area, soil variables associated with these fires (% C, % N, pH, soil texture, and % clay) were measured at three sites, both in burned and unburned areas. These soil characteristics were compared to corresponding ciliate diversity and ratios of r-selected colpodeans to K-selected polyhymenophorans (C/P) in non-flooded Petri dish preparations. A total of 85 ciliate taxa were observed across the three sites, including …

Potential For Timing High-Energy Marine Inundation Events In The Recent Geological Past Through Age-Dating Of Reef Boulders In Fiji, James P. Terry, Samuel Etienne

All Works

© 2014, Terry and Etienne; licensee Springer. Transported coastal boulders have increasingly come to represent a valuable element of investigations within the broader framework of multi-proxy approaches applied to coastal hazard studies. Through a case study on Taveuni Island in Fiji, this paper outlines some approaches and hindrances to effective timing of prehistorical high-energy marine inundation events (storms and tsunamis) on tropical coastlines from the evidence of reef-platform carbonate boulders. Various sources of errors are outlined that investigators must consider when attempting to use carbonate boulder ages as a surrogate for timing past events. On Taveuni, uranium : thorium dates …

Gender Differences In Response To Contingent Rewards: Evidence From A Natural Experiment Of Junior Tennis, Nejat Anbarci, K. Peren Arin, Jungmin Lee

All Works

© 2014 Elsevier Inc. We investigate gender differences in responding to contingent rewards by exploiting a natural experiment in junior tennis tournaments in Florida where the ranking point system was revised to induce more players to play doubles. The new point system increased the points earned from wins in singles matches significantly if the two thirds or more of players in their sex/age group chose to play doubles. We examine three types of potential responses to the new system: (1) a 'positive' response of playing doubles more by singles winners, (2) a 'subversive' response of playing doubles less by singles …

Internationalisation And Curriculum Development: Why And How?, Pj Magne

Plymouth Institute of Education

Today’s globally interconnected world offers a vast array of new opportunities, but has simultaneously created a need for greater intercultural understanding (Koehne, 2006). This article provides a rationale for the role that Higher Education must play in preparing students for the global market place. It outlines the scope of the ‘internationalisation’ agenda within Higher Education and goes on to explore the notion of what it means to ‘internationalise the curriculum’. The article offers an approach to curriculum development which uses a gap analysis tool (developed by the author) and discussion across disciplinary teams. A series of short case studies demonstrate …

Blogs, Books, & Breadcrumbs: A Case Study Of Transmedial Fairy Tales, Kristy Gilbert Stewart

Theses and Dissertations

Understanding transmedial storytelling is particularly important to fairy-tale studies. Monomedial views have long been unable to account for all of fairy tale tradition. Although the form originated in oral culture, it has long been a liminal, hybrid form that retains aspects of orality even while its principal mode of transference for some time has been something other than face-to-face communication. Transformations and adaptations across different media and contexts has resulted in a system of fairy-tale tradition that is massively intertextual and transmedial. No one medium can claim primary control over the fairy-tale tradition. Throughout time, oral tellings have inspired literary …

A Lesson In Rhetoric: Finding God Through Language In “Batter My Heart”, Marc Daniel Giullian

Theses and Dissertations

A reexamination of John Donne's Holy Sonnet “Batter my heart,” especially one looking at the sonnet's relationship to Early Modern rhetoric, is long overdue. In this paper, I hope to show that a focus on Donne's relationship to Early Modern rhetoric yields several useful new insights. I argue specifically that Donne was probably exposed to Non-Ramist rhetorical methods and theory at many points in his education, from his childhood to his college years to his years at the Inns of Court. Furthermore, Non-Ramist rhetoric has moral implications, suggesting that aspects of an author's feelings, character, and desires can be analyzed …

Microvascular Function In Metabolically Healthy Groups Differing In Bmi And Waist Circumference, Nathan R. Earl

Theses and Dissertations

BACKGROUND: Microvascular dysfunction (MD: impaired performance of blood flow, tissue perfusion, blood pressure, etc.) is one of the earliest stages in the progression of various chronic diseases. OBJECTIVE: The aim of this study was to determine if a difference in microvascular function existed between two metabolically healthy groups that differed in BMI and waist circumference. DESIGN: This study employed a causal comparative design, with two groups: I) normal weight (n =14, BMI 28 kg/m2). METHODS: Microvascular function was assessed by measuring skin blood flow (SkBF) using laser Doppler flowmetry during postocclusive reactive hyperemia (PORH). The area under the SkBF time …

Lateral Resistance Of Piles Near Vertical Mse Abutment Walls, Cody Hatch

Theses and Dissertations

A full scale MSE wall was constructed and piles were driven at various distances behind the wall. Lateral load testing was conducted and the performance of the pile, wall, and reinforcement were measured. The piles were 12.75 inch pipe piles, and the wall was reinforced with welded wire grid reinforcement. The objective of the testing was to characterize the relationship between the lateral pile resistance and the distance of the pile behind the back face of the MSE wall. Load-displacement curves are presented for the piles located behind the wall at 66 inches (5.3 diameters), 55 inches (4.3 diameters), 41 …

A Variable-Stiffness Compliant Mechanism For Stiffness-Controlled Haptic Interfaces, Jeffrey C. Hawks

Theses and Dissertations

In this research a variable-stiffness compliant mechanism was developed to generate variable force-displacement profiles at the mechanisms coupler point. The mechanism is based on a compliant Roberts straight-line mechanism, and the stiffness is varied by changing the effective length of the compliant links with an actuated slider. The variable-stiffness mechanism was used in a one-degree-of-freedom haptic interface to demonstrate the effectiveness of varying the stiffness of a compliant mechanism. Unlike traditional haptic interfaces, in which the force is controlled using motors and rigid links, the haptic interface developed in this work displays haptic stiffness via the variable-stiffness compliant mechanism. The …

Holding Hands And Drying Tears: Effectiveness Of Student Employees In Promoting A Successful Lms Implementation, Cary Ann Johnson

Theses and Dissertations

Two-thirds of higher education institutions are either currently involved in the process of or will soon begin to review their learning management system strategy (Green, 2012). Transitioning from one LMS to another is an endeavor that utilizes the entire institution and requires a great deal of strategic planning and cooperation. The literature described the involvement of instructional designers and technology support as key players in this transition process over a period of parallel time. When BYU transitioned from Blackboard to Learning Suite, a team of student employees managed the majority of the change. While there was very little time when …

Analysis, Validation, And Improvement Of High-Resolution Wind Estimates From The Advanced Scatterometer (Ascat), Jeffrey Richard Blodgett

Theses and Dissertations

The standard L2B ocean wind product from the Advanced Scatterometer (ASCAT) is retrieved as a 25 km product on a 12.5 km grid. Ultra-high resolution (UHR) processing allows ASCAT wind retrieval on a high-resolution 1.25 km grid. Ideally, such a high-resolution sample grid provides wind information down to a 2.5 km scale, allowing better analysis of winds with high spatial variability such as those in near-coastal regions and storms. Though the wind field is sampled on a finer grid, the actual data resolution needs to be validated. This thesis provides an analysis and validation of ASCAT UHR wind estimates in …

Magnetic Holding Of Synthetic Quartz For Precision Grinding, Saudin Basic

Theses and Dissertations

The objective of this research work is to investigate the practicality of magnetic workholding of non-magnetic synthetic quartz during high-speed grinding. This research work is sponsored by Quartzdyne and will be used as the starting point to applying single-piece rounding of its quartz. Hypotheses were created that would permit the authors to conclude that magnets are in fact worthwhile workholders for non-magnetic materials. Designs of Experiments were used to reject or fail to reject the null hypotheses. Experiments were carried out using a custom HAAS lathe, modified into a grinding center with an NSK live spindle, and neodymium-iron-boron magnets used …

Studies Of Phou In Escherichia Coli: Metal Binding, Dimerization,Protein/Protein Interactions, And A Signaling Complex Model, Stewart G. Gardner

Theses and Dissertations

Phosphate is an essential nutrient for all forms of life. Escherichia coli has a PhoR/PhoB two component regulatory system that controls the expression of various genes whose products allow the cell to thrive in low phosphate environments. The signaling mechanism of the PhoR/PhoB system has been studied and the phosphorylation cascade that controls gene expression is well understood. What is still unknown is how PhoR senses the phosphate level of the environment. The PstS, PstC, PstA, PstB, and PhoU proteins play a role in this signal sensing. This work confirms the hypothesis that the PstSCAB complex senses the environmental phosphate …

A Randomized Controlled Trial To Study The Effects Of Breakfast On Energy Intake, Physical Activity, And Body Fat In Women, Gabrielle Marie Lecheminant

Theses and Dissertations

PURPOSE: The purpose of this study was to determine the effects of eating breakfast on energy intake, physical activity, body weight, and body fat in women who were nonhabitual breakfast eaters over a one-month period. METHODS: We tested 49 premenopausal, nonhabitual breakfast-eating women to compare the effects of eating breakfast versus not eating breakfast. Each participant was randomized to one of two conditions: breakfast or no breakfast. Breakfast eaters were required to eat within an hour and a half of awakening and had to be finished eating their breakfast meal by 8:30 A.M. Non-breakfast eaters were defined as not consuming …

The Effectiveness Of Computer-Enhanced Shadowing And Tracking Pronunciation Exercises For Intermediate Level Foreign Language Learners, Veronique Willardson

Theses and Dissertations

This study examines the effectiveness of on-line video-assisted pronunciation exercises in beginning level classes of foreign-language learning. A review of the current literature on pronunciation is presented, followed by a description of a study used to test the effectiveness of computer-based exercises in improving pronunciation. The participants were a group of high school students that were members of a fourth year French class. As part of their regular class time, the students participated in two types of exercises, in-class group work and computer-lab self-directed exercises, in which the students watched videos with subtitles while repeating what they heard. Satisfaction with …

Cost Effectiveness Of Treating Generalized Anxiety Disorder In Adolescence: A Comparison By Provider Type And Therapy Modality, Kathryn Evelyn Reynolds

Theses and Dissertations

Generalized anxiety disorder (GAD) is frequently found in primary care settings and is highly prevalent among adolescents. The purpose of this study was to examine the cost effectiveness by provider type and therapy modality in treating adolescents (ages 13-17) with a GAD diagnosis (DSM-IV 300.02). A national insurance company in the United States provided outpatient and unidentifiable data for adolescent GAD cases (n = 2,932). These cases were used to analyze the cost effectiveness, total cost, treatment length, dropout, and readmission rates for the treatment of adolescents with GAD. Descriptive statistics signify that the mean cost of treatment for GAD …

B1 Mapping For Magnetic Resonance Imaging, Daniel Joseph Park

Theses and Dissertations

Magnetic Resonance Imaging (MRI) is a non-ionizing form of medical imaging which has practical uses in diagnosing, characterizing, and studying diseases in vivo. Current clinical practice utilizes a highly trained radiologist to view MR images and qualitatively diagnose, characterize, or study a disease. There is no easy way to compare qualitative data. That is why developing quantitative measures in MRI show promise. Quantitative measures of disease can be compared across a population, MRI sites, and over time. Osteoarthritis is one disease where those who have it may benefit from the development of quantitative MRI measures. Those benefits may include earlier …

Variation In Resource Utilization And Cost Of Reproduction For Two Burying Beetle Species, Peter J. Meyers

Theses and Dissertations

The cost of reproduction hypothesis suggests that allocation into current reproduction constrains future reproduction. How organisms accrue reproductive costs may differ between species and with varying levels of resource quality. Burying beetles are model organisms for testing for the cost of reproduction because of their unique natural history; beetles utilize small vertebrate carcasses for reproduction and they and their offspring feed exclusively on these discrete resources. Burying beetles also can utilize a large range of carcass sizes for reproduction. We tested for the cost of reproduction in two species of burying beetles, Nicrophorus marginatus and Nicrophorus guttula found in Central …

Alcohol Modulation Of Dopamine Release, Nathan Dan Schilaty

Theses and Dissertations

The mesolimbic dopamine (DA) system projects from the ventral tegmental area (VTA) to structures associated with the limbic system, primarily the nucleus accumbens (NAc). This system has been implicated in the rewarding effects of drugs of abuse. Many drugs of abuse act in the VTA, the NAc, or both. Dopamine neurons in the VTA that project to the NAc, and the GABA neurons that inhibit DA neurons locally in the VTA or project to the NAc, play an important role in mediating addiction to various drugs of abuse, in particular alcohol. There is a growing body of evidence of co-dependence …

A Competency Model For Catering And Event Professionals Using A Modified Delphi Technique, Donnell G. Bayot

UNLV Theses, Dissertations, Professional Papers, and Capstones

As the market for face-to-face meetings and events has grown to one of the largest private sector industries, so has the market for catering, which is the largest budget line item for a meeting or event. Clients have become more demanding and at the same time more price-conscious. This has caused catering professionals and meeting and event planners' job responsibilities to change. Caterers and planners now have more crossover responsibilities and over more varied functional areas than ever before. In response, the National Association for Catering and Events (NACE), as the oldest and largest catering association in the world, formally …

Listening To The Ranks: Perceptions Of The U.S. Air Force Occupational Health And Safety Training, Melissa Jo Breunig

UNLV Theses, Dissertations, Professional Papers, and Capstones

Occupational health and safety hazards are abundant in military environments. Due to the hazardous occupational settings, injuries remain a public health concern in the United States military. Public health plays a critical role in injury reduction by addressing the need for comprehensive safety education training, and more specifically, exposure related injuries. A secondary data analysis was completed using Communication Theory as the overarching framework to analyze 13 qualitative interviews conducted with Airmen to gain their perceptions of the occupational health and safety training at Nellis and Creech Air Force Base (AFB). Pedagogy and training content were the two main themes …

Simultaneous Determination Of Multiple Actinide Elements In A Variety Of Soils Utilizing A Standardized Sequential Extraction Protocol, Sherry Alina Faye

UNLV Theses, Dissertations, Professional Papers, and Capstones

To obtain a better understanding of the mobility of actinide element contaminants in the environment, the association of the contaminants with specific host phases of soils and sediments must be investigated. This investigation is most commonly conducted using sequential extraction techniques that employ the selective dissolution of soil phases with increasingly aggressive chemical treatment. Though several sequential extraction studies exist in literature, conclusions cannot be made by direct comparison of data due to the lack of uniformity in the protocols used. This work aims to continue development of a standard sequential extraction protocol and expanding its capabilities to include the …

Designing A Process To Reliably Split Extracted Teeth To Access The Dental Root Canal, Happy Singh Ghag

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction

Mesenchymal stem cell (MSC) research is a contemporary topic in modern healthcare. These cells have the ability to divide and generate progeny, which then become committed to specific and distinctive end-stage phenotypes, such as cartilage or bone (Caplan 1991). MSCs have been isolated from a variety of tissues such as the umbilical cord, bone marrow, adipose tissue (Ding, Shyu & Lin 2011) and dental pulp (Takeda et al 2008). Although dental pulp is a viable source for MSCs, peer reviewed research has given limited attention to its retrieval process through intentional tooth splitting of extracted teeth. The purpose of …

Novel Deployment Of Elpasolites As A Dual Neutron / Gamma-Ray Directional Detector, Amber Lynn Guckes

UNLV Theses, Dissertations, Professional Papers, and Capstones

At a time when upholding national security has never been more important, there exists a need for the advancement of radiation detection technologies. Neutron and photon detectors are essential to fulfilling mission areas including detection and localization of missing, stolen or smuggled radiological or nuclear materials, quantification of the effects of a radiological or nuclear event, and supporting nonproliferation efforts. The aim of this study was to evaluate a new radiation detector based on the scintillation elpasolite compound Cs2LiYCl6:Ce (CLYC) for simultaneous measurements of neutron and photon flux and the localization of radiation sources. Previous studies performed on the CLYC …

Socio-Economic And Cultural Determinants Of Health Care Services Utilization In Ghana, Vickita Akosua Antwiwaa Harvey

UNLV Theses, Dissertations, Professional Papers, and Capstones

The study examines the relationship between socio-economic and cultural determinants of health care service utilization in Ghana using Ghana Demographic and Health Survey (GDHS) 2008 data collected by Ghana Statistical Service (GSS) in which a two-stage sample design was used. The first stage involved a systematic sampling, with probability proportional to size, of 412 clusters using the 2000 Ghana Population and Housing Census as the sampling frame. At the second stage, systematic samples of 30 households from each cluster were selected, making a total of 12,360 sampled households. According to the GSS, data were not collected in some of the …

Digital Behavior Intervention Plans: Effects On General Education Teacher Fidelity Of Implementation, Christopher G. Holcomb

UNLV Theses, Dissertations, Professional Papers, and Capstones

Students with disabilities often have behavior that interferes with classroom learning. Serious problem behaviors are identified as the most significant factor interfering with learning in the classroom. Unfortunately, chronic behaviors often lead to a student dropping out of school. Current research typically focuses on areas of intervention for these students with little attention towards teacher fidelity of implementation of these interventions. Because of this, student's behavior intervention plans may not show effectiveness (e.g., progress monitoring, data driven decisions). It is important that researchers begin to explore systematic improvements in fidelity of implementation of behavior intervention plan components for general education …

Who Or What Should I Be Like? The Self-Assessment Of Sexual Desire, Caroline Maykut

UNLV Theses, Dissertations, Professional Papers, and Capstones

The construct of sexual desire has been notoriously difficult to capture and measure, in part as a function of questionable methods of sexual desire assessment. Due to problems finding an accurate, objective marker of sexual desire, research has relied on self-report. One notable difficulty with self-reported desire assessment is the lack of information on the context in which these assessments are made. The only available data focuses on relative assessment of sexual desire within couples, and ignores broader social and cultural contexts. The present study investigated men and women's perception of sexual desire discrepancies between themselves and other people and …

Factors Associated With Rapid Readmission Among Nevada State Pyschiatric Hospital Patients, Christopher Owen Moore

UNLV Theses, Dissertations, Professional Papers, and Capstones

Rapid readmission (RR) of psychiatric patients within 30 days of discharge places a costly burden on state psychiatric facilities and may be an indicator of suboptimal service provision. Several studies have previously considered RR to inpatient facilities, but there is a lack of information available about the variables associated with RR of psychiatric patients to state-operated inpatient facilities in Nevada. This study attempts to identify factors associated with RR at a southern Nevada state psychiatric hospital. Participants included 7,177 patients admitted between May 1, 2012 and April 30, 2014. All 12,068 admissions, including 2,220 RR, were reviewed, and rapid readmits …

The Presentation Of Childhood Parental Divorce In Adulthood: A Retrospective Phenomenological Study, Sheala Catherine Morrison

UNLV Theses, Dissertations, Professional Papers, and Capstones

There has been a wealth of research aimed at developing an understanding of the way in which the experience of divorce impacts children. However, adult children of divorce have been widely underrepresented in this literature, much of which is outdated being at least ten years old. With shifting societal attitudes and the transformation of the family system since the 1990's it is crucial that the research is updated in order to stay up on the way children and families are impacted in today's society. The purpose of this study was to hear directly from adults who experienced their parents' divorce …