Digital Commons Network^™

Oxidative Stress For An Acute Bout Of Bikram Yoga In Healthy, Trained Adults, Kimberly Anne Trocio

UNLV Theses, Dissertations, Professional Papers, and Capstones

BACKGROUND:Generation of free radicals resulting in oxidative damage has been linked to cellular damage, aging, and human disease. Many studies have reported that physical exercise can contribute to oxidative stress. Further, exercise in a hyperthermic environment can promote additional oxidative stress. It is important to consider that practices in yoga may be beneficial in reducing oxidative stress according to some studies. The compound effects of exercise and hyperthermic exposure are experienced in the practice of Bikram yoga, the original "hot" yoga. Because Bikram yoga and other hot exercise classes are an increasingly growing fitness trend, it is necessary to investigate …

Fate And Transport Of Fourteen Pharmaceuticals And Personal Care Products In An Irrigated Soil Profile, Lena Wright

UNLV Theses, Dissertations, Professional Papers, and Capstones

Use of pharmaceuticals and personal care products (PPCPs) is on the rise and unfortunately, a large percentage passes through the human body. These compounds then find their way into the wastewater stream and into treatment facilities. Only a fraction of these compounds are removed from the stream prior to discharge. An environmentally acceptable alternative to discharging recycled water to rivers, lakes and other bodies of water is to use the water for irrigation of large areas of turfgrass. These PPCPs, of which some may have high mobilities in irrigated soil plant systems, may potentially impact groundwater resources. To determine the …

An Empirically-Supported Model Of Posttraumatic Stress Disorder In Maltreated Youth, Adrianna Wechsler

UNLV Theses, Dissertations, Professional Papers, and Capstones

Posttraumatic stress disorder in maltreated youth is a young and burgeoning field. Lemos-Miller and Kearney (2006) were among the first to propose and test a theoretically and empirically-based model of PTSD in maltreated youth. The present study replicated and evaluated the Lemos-Miller and Kearney model within a larger and more diverse sample of maltreated adolescents. First, the Lemos-Miller and Kearney model was tested via structural equation modeling (SEM). Second, the model was evaluated across age, gender, and ethnicity. Third, trauma history, family environment (i.e., cohesion and conflict), dissociation, and trauma-related cognitions were evaluated as potential mediating variables within the model. …

The Importance Of Explicitly Mapping Instructional Analogies In Science Education, Loretta Asay

UNLV Theses, Dissertations, Professional Papers, and Capstones

Analogies are ubiquitous during instruction in science classrooms, yet research about the effectiveness of using analogies has produced mixed results. An aspect seldom studied is a model of instruction when using analogies. The few existing models for instruction with analogies have not often been examined quantitatively. The Teaching With Analogies (TWA) model (Glynn, 1991) is one of the models frequently cited in the variety of research about analogies. The TWA model outlines steps for instruction, including the step of explicitly mapping the features of the source to the target. An experimental study was conducted to examine the effects of explicitly …

Emotional And Behavioral Reactions To Emotional And Physical Infidelity: An Evolutionary Perspective, Alyson Kay Baker

UNLV Theses, Dissertations, Professional Papers, and Capstones

The current study examined the effect of sex on how people react, emotionally and behaviorally, to different types of partner infidelity. We expected to replicate previous findings that men experience more jealousy in reaction to their partner's sexual infidelity, and women experience more jealousy in reaction to their partners' emotional infidelity. We hypothesized that sex will affect behavioral reactions to infidelity as well. Specifically, we expected men to respond to sexual infidelity by terminating the relationship and to emotional infidelity by employing mate-guarding behaviors to prevent further infidelity. We hypothesized women would display the opposite pattern, leaving a relationship in …

Kinematic Analysis Of Axial Rotations And The Effects Of Stress Selection On Takeoff Flight Performance, Michael L. Brewer

UNLV Theses, Dissertations, Professional Papers, and Capstones

The importance of flying insects cannot be understated; without them as pollinators, the great diversity of flowing plants could not have occurred. Flight requires a suite of highly derived morphological and physiological characteristics that may limit the evolutionary responses of other life history traits.

To investigate the complexities of maneuvering flight, I used high-speed videography to analyze wing and body motions in the HoverflySyritta pipiens(Order: Diptera) during horizontal turns called saccades. I characterized the saccades by calculating the instantaneous rotational velocities throughout the saccade, maximum rotational velocity, and the mean rotational velocity. I then compared the shape of the rotational …

Motives For Different Types Of Medical Travelers: An Analysis Of The Current State Of Academic Research On The Topic, Dan B. Cormany

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this research is to determine the current state of research undertaken to provide insight into the motivational characteristics of medical travelers, as reported by scholarly publications in the last five years. As a part of the study, an exploration is undertaken of the four basic schools of psychological thought, as each have different explanations for human motivation. These four schools - psychodynamic, behavioral, humanistic, and cognitive or pragmatic - are examined in the light of six categories of medical travelers. The categories are those traveling for life-saving surgeries, for treatments to improve quality of life, for elective …

What Can Biochemistry Students Learn About Protein Translation? Using Variation Theory To Explore The Space Of Learning Created By Some Common External Representations, Thomas J. Bussey

UNLV Theses, Dissertations, Professional Papers, and Capstones

Biochemistry education relies heavily on students' ability to visualize abstract cellular and molecular processes, mechanisms, and components. As such, biochemistry educators often turn to external representations to provide tangible, working models from which students' internal representations (mental models) can be constructed, evaluated, and revised. However, prior research has shown that, while potentially beneficial, external representations can also lead to alternative student conceptions.

Considering the breadth of biochemical phenomena, protein translation has been identified as an essential biochemical process and can subsequently be considered a fundamental concept for biochemistry students to learn. External representations of translation range from static diagrams to …

Resilience And Trauma In Maltreated Youth, Timothy Day

UNLV Theses, Dissertations, Professional Papers, and Capstones

Research into resilience represents a theoretical shift from the medical model in contemporary psychology to a focus on adaptation (Poulou, 2007). The relationship however between resilience and the development and PTSD in children remains unclear. The purpose of this present study is to expand on this research by investigating resilience and adaptability with respect to Posttraumatic Stress Disorder (PTSD) symptoms across maltreated youth of different ethnicities at risk for PTSD. Participants will be recruited from a Department of Family Services (DFS)-affiliated clinic in the Las Vegas area and administered the Children's PTSD Inventory (CPTSD-I), Behavior Assessment System for Children-2 Parent …

Chronologies Of Pain And Power: Violence, Inequality, And Social Control Among Ancestral Pueblo Populations (Ad 850-1300), Ryan Patrick Harrod

UNLV Theses, Dissertations, Professional Papers, and Capstones

Analysis of human remains in the Greater Southwest offers important insights into mechanisms underlying cultural processes, human adaptability as well as behavioral flexibility and resilience in the face of change. Data collected from human remains from several sites throughout the Four Corners region of the Greater Southwest provides information on the ways that violence and social inequality were used to maintain a regional complex between AD 850 to AD 1300. Human remains were used to provide empirical data on biological (age, sex, stature, and robusticity) and cultural (mortuary context, burial practice, and site layout) identity. Skeletal remains provided information on …

Black Teachers, White Schools: A Qualitative Multiple Case Study On Their Experiences Of Racial Tokenism And Development Of Professional Black Identities, Abigail Kathleen Hasberry

UNLV Theses, Dissertations, Professional Papers, and Capstones

An emerging body of research shows that retention of minority independent school teachers creates a positive multicultural climate and increases the likelihood that minority families will enroll their children in the schools as well as preparing all students for a pluralistic society (Brosnan 2001b, AIMS 2010, Katz & Wishine 2001). However, retaining minority teachers in predominantly White and affluent independent schools has proved challenging (Brosnan 2001, 2001b, 2009). This qualitative multiple case study extends the current literature on Black private school teachers by not only examining the experiences, but also the coping strategies and professional identity development processes of nine …

Parental Stress, Family-Professional Partnerships, And Family Quality Of Life: Families Of Children With Autism Spectrum Disorder, Yun-Ju Hsiao

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to investigate the relationship among the quality of life of families that have at least one child with autism spectrum disorder, parental stress level, and partnerships between the family and professionals. Also, parent perceptions of parental stress, family quality of life, and family-professional partnerships were assessed to ascertain if they could be predicted from different variables (e.g., ethnicity, educational levels, income levels, and parental relationship status, etc.). The study examined the relationship among the three variables (e.g., family quality of life, parental stress, and family-professional partnership). Participants were recruited from an autism center located …

Effects Of Environmental Variables On The Reproduction Of Quagga Mussels (Dreissena Rostriformis Bugensis) In Lake Mead, Nv/Az, Richard Steven Ianniello

UNLV Theses, Dissertations, Professional Papers, and Capstones

In 2007, quagga mussels (Dreissena rostriformis bugensis) were found in Lake Mead and have spread downstream on the Colorado River and to other lakes and reservoirs in the Southwestern United States. The quagga mussel's extremely quick colonization of Lake Mead and annual veliger abundance trends provide evidence that the quagga mussels in the Southwest have different reproductive behavior than in previous habitats. This study is one of the first to specifically examine quagga mussel reproduction in the Southwest and examines how quagga mussel reproduction varies at sites known to have different temperatures and other environmental variables resulting from the input …

James Joyce And Post-Imperial Bildung: Influences On Salman Rushdie, Tayeb Salih, And Tsitsi Dangarembga, Robert Michael Kirschen

UNLV Theses, Dissertations, Professional Papers, and Capstones

Joyce's "A Portrait of the Artist as a Young Man" functions as an axis around which writers from former British colonies--Salman Rushdie (India), Tayeb Salih (Sudan), and Tsitsi Dangarembga (Zimbabwe)--construct their own Bildungsromans. This nodal point is possible because Joyce's Bildungsroman represents a unique rendering of the genre which has proven useful for narratives of growth and development in newly independent nations. This dissertation focuses on a single narrative paradigm which acts as a common thread among the four authors. In each text (Rushdie's "Midnight's Children", Salih's "Season of Migration to the North", and Dangarembga's "Nervous Conditions"), the use of …

Development And Validation Of The Biophilic Attitudes Inventory (Bai), Lawrence Letourneau

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study investigated the viability of an instrument called the Biophilic Attitudes Inventory (BAI), a pen-and-paper instrument intended to measure attitudes toward nature that, according to naturalist Edward O. Wilson, are rooted in an innate predisposition that humans possess to connect with other forms of life. Utilizing confirmatory factor analysis (CFA), two models were tested (n=334)--a seven-factor model that reflected Stephen Kellert's biophilia typology and a more parsimonious two-factor model. However, neither model proved viable in terms of construct validity. As a result, a new model with four factors was developed via exploratory factor analysis (EFA). A subsequent CFA revealed …

Decoding Skills Of Middle-School Students With Autism: An Evaluation Of The Nonverbal Reading Approach, Patrick Allen Leytham

UNLV Theses, Dissertations, Professional Papers, and Capstones

Students diagnosed with autism demonstrate a deficit in communication skills, which affects their literacy skills. Federal legislation mandates that students with disabilities receive a free appropriate public education, be taught how to read, and have access to the general education curriculum. Students with autism are being included more in the general education classroom. Prior literacy instruction for students with moderate to severe forms of disabilities has shown promising results. The whole language approach to teaching students with autism how to read has been researched extensively, particularly in the area of sight-word identification. One major limitation to this approach, however, is …

Strange Little Vehicles, Andrew Merecicky

UNLV Theses, Dissertations, Professional Papers, and Capstones

It isn't an exploration in or an experiment regarding. It is a praxis, as a commute is the opposite of an adventure. As le chat regarde le poisson. As when one looks at anything, it becomes strange. That is, a thing (a thought, a feeling, Gertrude Stein's "piece of coffee") once considered becomes little and different. It is the world that is large and alike. It is ultimately the similarity, the recognition of which we, who feel small and unique in the grand scheme, find terrifying. Language is always, as Lyn Hejinian wrote, social; it is a vehicle.

As I …

Understanding Effects Of Changes In Land Use, Environmental Parameters, Habitat Characteristics On The Great Basin Aquatic Invertebrates Using Ecological Stoichiometric Theory, Knut Mehler

UNLV Theses, Dissertations, Professional Papers, and Capstones

Many freshwater ecosystems in the Great Basin have undergone dramatic alteration over the past decades due to groundwater withdrawal, water diversion and changes in land use. These changes have affected benthic food web dynamics by altering the availability of chemical key elements for primary and secondary producers, by loss of biodiversity and extinction of endemic species. However, only few studies are available that addresses the link between changes in land use, habitat characteristics and its effects on benthic macroinvertebrates (BMI) communities comprehensively and little attention has been given to integrating physiochemical aspects to link ecosystem functions.

This dissertation analyzes the …

Investigating The Feasibility Of Growing Algae For Fuel In Southern Nevada, Faegheh Moazeni

UNLV Theses, Dissertations, Professional Papers, and Capstones

Microalgae capable of growing in waste are adequate to be mass-cultivated for biodiesel, avoiding fertilizers and clean water, two obstacles to sustainability of the feedstock production. This study replaces fertilizers and clean water with waste products. The investigated wastes include (1) the liquid fraction of sewage after solids and particles are removed, known as centrate, and (2) algal biomass residue, i.e. the algae remaining at the end of the lipids extraction process at biofuel plants. These wastes contain sufficient amount of nitrogen and phosphorus required for algal growth. This study proposes a system in which centrate would be used as …

A Comparison Of Two After School Strategies For Improving The Parenting Knowledge And Parenting Perceptions Of Preschool Families Enrolled In A Title 1 Program, Rae Ette Veronna Newman

UNLV Theses, Dissertations, Professional Papers, and Capstones

A parent is a child's first educator in communication, social/emotional skills, motor development, and academics. As the achievement expectations placed on schools increase and the schooling population continually diversifies, the need to increase the overall parental involvement in schools and their ability to assist with academics in the home becomes more significant to ensure academic success for all children. By acquiring the fundamental parenting knowledge and skills, despite the barriers and additional disadvantages, parents can overcome daily obstacles, reduce family stress, and support developing proficient children. By encouraging positive parenting skills, parents can increase their parenting self-efficacy.

The purpose of …

Development And Implementation Of A Quality Improvement Initiative: Systematic Follow-Up Of Patients Who Have Spinal Cord Stimulator Implants, Irina Rajala

UNLV Theses, Dissertations, Professional Papers, and Capstones

Recent medical advances and the rising prevalence of chronic pain in the US population contribute to the use of spinal cord stimulator (SCS) implant as a treatment modality for chronic pain management. As the numbers of patients receiving SCS implants steadily increases, the challenge of managing this device grows and the need for SCS implants follow-up programs rises. Follow-up programs need to focus on implant longevity and efficacy to improve the quality of care outcomes.

This Doctor of Nursing Practice (DNP) quality improvement initiative was developed to provide systematic follow-up for patient with SCS implant. The project includes the creation …

The Effects Of Starvation Selection On Drosophila Melanogaster Life History And Development, Lauren A. Reynolds

UNLV Theses, Dissertations, Professional Papers, and Capstones

In nature, animals may endure periods of famine to complete their life cycles. Starvation stress will increase in populations as climates around the world change. To predict how populations may respond to such a stress, laboratory experimentation becomes essential. The evolutionary process of adaptation, its innovations and their trade-offs, can be studied in populations experiencing starvation stress. For this purpose outbred populations ofDrosophila melanogasterwere selected for starvation resistance in the laboratory.

After 60+ generations of starvation selection the starvation-selected flies have gone from surviving 2-3 days without food to 12-14 days without food. How this amazing feat of resistance is …

Firefighter Fitness-For-Duty Medical Screening: A Peer Review Quality Improvement Pilot, Julie Collings Rochefort

UNLV Theses, Dissertations, Professional Papers, and Capstones

Despite the overwhelming evidence that sudden cardiac death is the most frequent cause of firefighter fatalities, many fire departments do not have a program to measure or maintain basic firefighter fitness and health. This project evaluated and compared medical screening outcomes of four industrial fire brigades within a multinational oil and gas corporation and introduced a quality improvement plan. The goal of this project was to apply the evidence and measure outcomes to determine the most effective way to ensure that firefighters in a corporate setting are healthy. This was accomplished by utilizing established guidelines in developing an educational program …

Real Time Digital Night Vision Using Nonlinear Contrast Enhancement, Nishikar Sapkota

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis describes a nonlinear contrast enhancement technique to implement night vision in digital video. It is based on the global histogram equalization algorithm. First, the effectiveness of global histogram equalization is examined for images taken in low illumination environments in terms of Peak signal to noise ratio (PSNR) and visual inspection of images. Our analysis establishes the existence of an optimum intensity for which histogram equalization yields the best results in terms of output image quality in the context of night vision. Based on this observation, an incremental approach to histogram equalization is developed which gives better results than …

Soil Moisture Recognition And The Spatial Distribution Of Storm Activity In The Mojave Desert Using High-Resolution Aster And Modis Imagery For Thermophysical Mapping, Russell J. Skuse

UNLV Theses, Dissertations, Professional Papers, and Capstones

Climate models suggest that the Mojave Desert ecoregion is vulnerable to becoming drier in the future, and as the human population grows and development increases, environmental stresses will likely increase. Determining the spatial distribution and variation of soil moisture on a regional scale is an essential component to climate change, hydrologic, and habitat analyses. Soil permeability and sediment stability are characteristics that have been shown to be measurable from remote sensing observations. The primary objective of this project is to map the mechanical composition of the surface materials in the Mojave Desert ecoregion with implications for soil permeability, sediment stability, …

Risk Assessment Of Trace And Undeclared Allergens In Processed Foods, Benjamin C. Remington

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Minimal eliciting doses for objective allergic reactions were found for 13 priority allergens and over 1800 individuals from published clinical literature or unpublished clinical data. Allergic populations did not vary when analyzed by age or geographic region. Results of this study show there are sufficient clinical data from food allergic individuals to use for risk assessment purposes for several allergenic foods.

Of 186 food products bearing advisory statements regarding peanut or 16 products that had peanut listed as a minor ingredient, 8.6% and 37.5% contained detectable levels of peanut (>2.5 ppm whole peanut). An additional market survey of 215 …

Happiness Institutions , Jennifer Nou

Duke Law Journal

No abstract provided.

Comparison Of Liquid-Liquid Extraction And Solid Phase Extraction Of Mephedrone, Brittany Simone Love

Master's Theses

Legal high drugs are modified scheduled drugs. As with any new drug, researchers have to conduct studies to gather information about the drug. The problem with obtaining accurate information on new drugs is that by the time information is gathered, drug abusers and street chemists have developed new ones. Comparing designer drugs to their illegal counterparts is often helpful in that it can provide a starting point. Mephedrone is a new designer drug that has become a problem over the past few years. Often marketed as bath salts and plant food, mephedrone has become the knockoff replacement for amphetamines. This …

From Corporal To Corporate: Defining The Body Politic In The Twenty-First Century, Ashley Estelle Lord

Master's Theses

The following research project illustrates a transition of the body politic metaphor from the second century AD. to present day. From this historical perspective it can be shown that a new body politic exists within Western, capitalist systems with the corporation serving as the head of the body and its buyers, the appendages. This paper claims that as with the previously accepted analogies of the body politic ("The Lord's Two Bodies," "The King's Two Bodies," and the body politic composed by consent of the governed) this corporate driven body possesses four key features that define all three previous manifestations: a …

Mitochondrial Dna Control Region Sequence Polymorphisms From A South Indian Population Sample: A Forensic And Phylogenetic View, Robin Gwydion Bombardi

Master's Theses

India is characterized by a human migration history spanning more than 60,000 years. Contemporary populations evolved from early migrations shortly following the African exodus but also recent movements possibly related to the spread of agriculture or t?e Indo-Aryan invasion. India has been underrepresented in mitochondrial surveys of human variation. The aim of this study was to establish a mtDNA dataset for the state of Tamil Nadu, India for forensic purposes and to investigate the diversity of the Tamil Nadu population sample with respect to global populations. The hypervariable regions I, II, and III within the mtDNA control region of a …