Digital Commons Network^™

Designs And Outcomes Of Transcranial Magnetic Stimulation (Tms) And Repetitive Transcranial Magnetic Stimulation (Rtms) Circuits, Daniel Senda

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis reports the design and outcomes of several circuits intended for transcranial magnetic stimulation (TMS) and repetitive transcranial magnetic stimulation (rTMS) research. In simple terms, TMS circuits are composed of four main blocks: high voltage power source, energy storage bank, control switch, and coil. Each one of these blocks has characteristics that influence how well the circuit will perform for TMS procedures. A successful TMS research circuit must have the ability to emit controlled electromagnetic pulses through a coil connected to it. For the first block, voltages ranging from 50 V to 2 kV were used. In the second …

Ab-Initio And Empirical Simulations Of Aluminum And Copper Metal, William Wolfs

UNLV Theses, Dissertations, Professional Papers, and Capstones

In this work, I perform detailed calculations on the bulk and electronic properties of aluminum and copper metal. Originally, I was motivated by experimental work on the solidsolid phase changes in pure aluminum. These phase changes were well predicted by density functional theory(DFT) but difficult or impossible to predict using embedded atom method potentials(EAM). EAM potentials are in wide use to describe many properties of bulk materials, and it seemed worrying that something so basic as a phase change could not be predicted. I began running high precision calculations with DFT and compared the results to EAM potentials which had …

Factors Influencing Us Residents' Willingness To Engage In Domestic Medical Tourism, Hananeh Derakhshan

UNLV Theses, Dissertations, Professional Papers, and Capstones

Domestic medical tourism is a niche market in the medical tourism industry. The purpose of this study was to determine the association of different attributes on U.S residents’ willingness to participate in domestic medical tourism. Based on the medical tourism index (MTI) components, a total of fourteen possible attributes that may impact US residents’ willingness to seek out-of-town care were created and participants were asked to rate the importance of each attribute on their willingness to seek out-of-town care on a 10-point Likert scale. Using principal component analysis, the attributes were grouped into three components: (1) quality-of-care, (2) destination attraction, …

How Can We Reduce Racism? A Mixed Method Study Of Factors That Influence Attitudes Towards Social Change, Kindy Insouvanh

UNLV Theses, Dissertations, Professional Papers, and Capstones

The resurgence of social movements such as Black Lives Matter has provoked public discourse about racial inequality and efforts towards social change. The current study sought to better understand how young adults reason about racism reduction with a focus on racial allyship and collective action. The present study used mixed methods to identify strategies young adults believe different racial groups could do to reduce racism and investigate the influence that individual factors have on reasoning about social change. Here, I present emergent themes to describe racism reduction strategies from a large and racially diverse sample of undergraduate students (N= 428). …

Multiple Approaches To Auditory Rhythm: Development Of Sustained Musical Beat And The Relation To Language, Development Of Rhythmic Categories Via Iterated Production, And A Meta-Analytic Study Of Neural Entrainment To Beat, Karli Marie Nave

UNLV Theses, Dissertations, Professional Papers, and Capstones

Rhythm is ubiquitous to human communication, coordination, and experience of music. In this dissertation, I address three empirical questions through three different methodologies, all of which contribute to the growing body of literature on human auditory rhythm processing. In Chapter 2, I present a registered report detailing the results of independent conceptual replications of Nozaradan, Peretz, Missal, & Mouraux (2011), all using the same vetted protocol. Listeners performed the same tasks as in Nozaradan et al. (2011), with the addition of behavioral measures of perception. In neuroscience, neural correlates to musical beat perception have been identified, yet little to no …

Arkansas Corn And Grain Sorghum Performance Tests 2021, J. F. Carlin, R. B. Morgan, R. D. Bond

Arkansas Agricultural Experiment Station Research Series

Corn and grain sorghum performance tests are conducted each year in Arkansas by the University of Arkansas System Division of Agriculture. The tests provide information to companies marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating recommendations for producers. The 2021 corn performance tests contained 70 hybrids and were conducted at the Northeast Research and Extension Center (NEREC) at Keiser, the Lon Mann Cotton Research Station (LMCRS) near Marianna, the Bell Farming Company (BFC) near Des Arc, the Rohwer Research Station (RRS) near Rohwer, and the Rice Research and Extension Center (RREC) near Stuttgart. The …

Multiplex Pcr Pathogen Detection In Acute Gastroenteritis Among Hospitalized Us Children Compared With Healthy Controls During 2011-2016 In The Post-Rotavirus Vaccine Era., Christopher J. Harrison, Ferdaus Hassan, Brian R. Lee, Julie Boom, Leila C. Sahni, Coreen Johnson, James Dunn, Daniel C. Payne, Mary E. Wikswo, Umesh Parashar, Rangaraj Selvarangan

Manuscripts, Articles, Book Chapters and Other Papers

Background: Despite vaccine-induced decreases in US rotavirus (RV) disease, acute gastroenteritis (AGE) remains relatively common. We evaluated AGE pathogen distribution in hospitalized US children in the post-RV vaccine era.

Methods: From December 2011 to June 2016, the New Vaccine Surveillance Network (NVSN) conducted prospective, active, population-based surveillance in hospitalized children with AGE. We tested stools from 2 NVSN sites (Kansas City, Houston) with Luminex x-TAG Gastrointestinal Pathogen Panels (Luminex GPP) and analyzed selected signs and symptoms.

Results: For 660 pediatric AGE inpatients and 624 age-matched healthy controls (HCs), overall organism detection was 51.2% and 20.6%, respectively (P < .001). Among AGE subjects, GPP polymerase chain reaction detected >1 virus …

Kajian Tingkat Keparahan Postur Janggal Yang Berkontribusi Kepada Gangguan Sistem Muskuloskeletal (Studi Pustaka Naratif), Ira Safhira, Chandra Satrya

National Journal of Occupational Health and Safety

Background: Not all of awkward postures that exist in the industry should be eliminated. Due to the fact, awkward posture can not be separated from daily work activities. Any movement that makes the body angle away from the normal position, can be said to be an awkward posture. Misconceptions related to the concept of awkward posture are followed by the fact that the assessment’s concepts of the observation method that are often used to assess awkward postures (REBA, RULA, and OWAS) is not accordance with the theory it should be. That condition can reduce the effectiveness of controlling musculoskeletal system …

Ay 2021/2022 Fs Agenda, 2021-12-01, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 2021/2022 Fs Meeting Minutes, 2021-12-01, Faculty Senate

Faculty Senate Archives

No abstract provided.

論從上古到中古的字調流變現象, Hongyan Liu, Maopeng Paul Ma

嶺南學報 Lingnan Journal of Chinese Studies

字調流變是指從上古到中古的語音演變過程中個别字的調類轉移。要確定某字的上古調類，可資利用的材料有上古韻文及通假字。周祖謨先生據上古韻文考證出了若干中古爲上、去聲，上古惟讀平聲的古今異調字。本文據簡帛通假補苴周説，同時結合經籍舊注、漢魏六朝韻文嘗試勾勒這些字聲調流變的過程。關於字調流變的原因，有些可能與變調構詞有關，有些尚需深入研究。聲調源於韻尾假説，其後置韻尾的構擬與中古調類一一對應，難以解釋字調流變現象。

Sporadic tonal conversion refers to the phenomenon that a small amount of characters belonging to one tone in Old Chinese evolved into another tone in Middle Chinese. There are two kinds of documents which can be used for the identification of the tone of a character in Old Chinese, i.e., verse and phonetic loan characters. In this paper, we made in-depth exploration of the phonetic loan characters from the inscriptions on bamboo slips, old annotations of classics and verse to outline the process of sporadic tonal conversion. And the reasons why this conversion happened were also discussed.

Higher Habitual Flavonoid Intakes Are Associated With A Lower Risk Of Peripheral Artery Disease Hospitalizations, Nicola P. Bondonno, Kevin Murray, Aedin Cassidy, Catherine P. Bondonno, Joshua Lewis, Kevin D. Croft, Cecilie Kyro, Gunnar Gislason, Christian Torp-Pedersen, Augustin Scalbert, Anne Tjonneland, Jonathan M. Hodgson, Frederik Dalgaard

Research outputs 2014 to 2021

Background

The role of nutrition in the primary prevention of peripheral artery disease (PAD), the third leading cause of atherosclerotic cardiovascular disease, is undetermined. Flavonoids may attenuate atherosclerosis and therefore persons who consume flavonoid-rich foods may have a lower risk of developing PAD.

Objectives

We aimed to examine the association between flavonoid intake and PAD hospitalizations and investigate if the association differs according to established risk factors for PAD.

Methods

Baseline data from 55,647 participants of the Danish Diet, Cancer, and Health Study without PAD, recruited from 1993 to 1997, were cross-linked with Danish nationwide registries. Flavonoid intake was calculated …

Giant Abdominal Aortic Aneurysms, Joshua I Ng, Tuong Nguyen, Anand Tarpara, Dawn Salvatore, Paul J Dimuzio, Babak Abai

Department of Surgery Faculty Papers

Giant abdominal aortic aneurysms (AAAs) are defined as AAAs >10 to 13 cm in the maximum transverse diameter. We have described a case of a patient who had presented for open repair of an 18-cm AAA and a review of reported cases of giant AAAs >10 cm in the maximum transverse diameter. Forty cases were compiled. The average maximum AAA diameter was 14.5 ± 4.1 cm. The AAA was ruptured on presentation in 12 patients (30%). Of the 40 cases, 34 (85%) were repaired with open surgery. The reported mortality was 15%. Despite the case complexity, five endovascular repairs were …

Cross-Cryptocurrency Return Predictability, Li Guo, Bo Sang, Jun Tu, Yu Wang

Research Collection Lee Kong Chian School Of Business

Using the minute-frequency data on Binance, we find strong evidence of cross-cryptocurrency return predictability. The lagged returns of other cryptocurrencies serve as significant predictors of focal cryptocurrencies up to ten minutes, in line with slow information diffusion. The results are robust across various methods, including the adaptive LASSO and principal component analysis. Furthermore, a long-short portfolio formed on the past returns of cryptocurrencies can generate a daily return of 2.16% out-of-sample after accounting for transaction costs, indicating sizable economic value of cross-cryptocurrency return predictability.

Machine Learning For Unmanned Aerial System (Uas) Networking, Jian Wang

Doctoral Dissertations and Master's Theses

Fueled by the advancement of 5G new radio (5G NR), rapid development has occurred in many fields. Compared with the conventional approaches, beamforming and network slicing enable 5G NR to have ten times decrease in latency, connection density, and experienced throughput than 4G long term evolution (4G LTE). These advantages pave the way for the evolution of Cyber-physical Systems (CPS) on a large scale. The reduction of consumption, the advancement of control engineering, and the simplification of Unmanned Aircraft System (UAS) enable the UAS networking deployment on a large scale to become feasible. The UAS networking can finish multiple complex …

Optimal Sizing And Control Of Hybrid Rocket Vehicles, Srija Ryakam

Doctoral Dissertations and Master's Theses

In the present work, a genetic algorithm is used to optimize a hybrid rocket engine in order to minimize the propellant required for a specific mission. In a hybrid rocket engine, the mass flow rate of the oxidizer can be throttled to enhance the performance of the rocket. First, an analysis of the internal ballistics and the ascent trajectory has been carried out for different mass flow rates of the oxidizer as a function of time, for a fixed amount of oxidizer, in order to study the effect of throttling. Two equivalent problems are considered: in the first problem the …

Irreversibility Minimization Analysis Of Ferromagnetic Oldroyd-B Nanofluid Flow Under The Influence Of A Magnetic Dipole, Muhammad Ramzan, Fares Howari, Jae Dong Chung, Seifedine Kadry, Yu Ming Chu

All Works

© 2021, The Author(s). Studies highlighting nanoparticles suspensions and flow attributes in the context of their application are the subject of current research. In particular, the utilization of these materials in biomedical rheological models has gained great attention. Magneto nanoparticles have a decisive role in the ferrofluid flows to regulate their viscoelastic physiognomies. Having such substantial interest in the flow of ferrofluids our objective is to elaborate the melting heat transfer impact in a stretched Oldroyd-B flow owing to a magnetic dipole in the presence of entropy generation optimization. Buongiorno nanofluid model expounding thermophoretic and Brownian features are considered. Moreover, …

The Effect Of Different Methods To Identify, And Scenarios Used To Address Energy Intake Misestimation On Dietary Patterns Derived By Cluster Analysis, Geraldine Lo Siou, Alianu K. Akawung, Nathan M. Solbak, Kathryn L. Mcdonald, Ala Al Rajabi, Heather K. Whelan, Sharon I. Kirkpatrick

All Works

Background: All self-reported dietary intake data are characterized by measurement error, and validation studies indicate that the estimation of energy intake (EI) is particularly affected. Methods: Using self-reported food frequency and physical activity data from Alberta’s Tomorrow Project participants (n = 9847 men 16,241 women), we compared the revised-Goldberg and the predicted total energy expenditure methods in their ability to identify misreporters of EI. We also compared dietary patterns derived by k-means clustering under different scenarios where misreporters are included in the cluster analysis (Inclusion); excluded prior to completing the cluster analysis (ExBefore); excluded after completing the cluster analysis (ExAfter); …

Exercise And Nutrition Impact On Osteoporosis And Sarcopenia—The Incidence Of Osteosarcopenia: A Narrative Review, Sousana K. Papadopoulou, Konstantinos Papadimitriou, Gavriela Voulgaridou, Evridiki Georgaki, Eudoxia Tsotidou, Olga Zantidou, Dimitrios Papandreou

All Works

Osteoporosis and sarcopenia are diseases which affect the myoskeletal system and often occur in older adults. They are characterized by low bone density and loss of muscle mass and strength, factors which reduce the quality of life and mobility. Recently, apart from pharmaceutical interventions, many studies have focused on non-pharmaceutical approaches for the prevention of osteoporosis and sarcopenia with exercise and nutrition to being the most important and well studied of those. The purpose of the current narrative review is to describe the role of exercise and nutrition on prevention of osteoporosis and sarcopenia in older adults and to define …

Ferris Bakes, Ferris Dehart

Honors Capstones

No abstract provided.

Plausible Retaliation: Using Modern Pleading Standards As A Blueprint For First Amendment Retaliation Claims, Amy L. Moore

Law Faculty Scholarship

This Article examines the Supreme Court’s evolving doctrine governing First Amendment retaliatory arrest claims, focusing on the Court’s decision in Nieves v. Bartlett and its imposition of a lack-of-probable-cause requirement as a threshold element. Tracing the doctrinal development from Mt. Healthy City School District Board of Education v. Doyle through Hartman v. Moore, Reichle v. Howards, Lozman v. City of Riviera Beach, and Nieves, the Article argues that the Court improperly imported retaliatory prosecution logic into the arrest context without adequately accounting for modern pleading standards under Twombly and Iqbal. The Article contends that requiring …

Sheltered English Immersion In Massachusetts: Examining The Reflections Of Career And Technical Teachers With Regard To A Mandated “One-Size-Fits-All” Professional Development Model, Rebecca Nault Swasey

All Theses And Dissertations

Educators in Massachusetts have sought to use multiple professional development models to fill the gap of what bilingual programs once provided. A consequence of the 2002 vote indicated that all teachers have the responsibility to teach language to English language learners (ELLs) in Massachusetts. With all this change in federal and state policy, the only modification to the teacher preservice model for career and technical teachers was the addition of one required professional development series on providing sheltered English immersion to ELLs in their vocational-technical programs. However, the current SEI professional development model may not be able to provide for …

Examining The Delivery Methods Of Current Content And Curriculum For Recruit Police Officers, Daniel Barrancotta

All Theses And Dissertations

This qualitative-interpretive, phenomenological analysis study describes the lived experiences of police officers, their training programs and their educational relationships with academy instructors and field training officers. The focus was not on content material, but rather the delivery methods of the curriculum, in an attempt to provide training programs that improve transference of knowledge for increased learning and job preparedness. This research study showed that a lack of knowledge and understanding of andragogy for police academy instructors and field training officers is creating a limited learning environment for recruit police officers. Without the knowledge and ability to use better forms of …

Moxie : We Just Wanna Play Games, Chris Stojkos

Postgraduate

Hegemonic geek masculinity dominates video games. It has contributed to the formation of a toxic culture that is now widely perceived to consistently and aggressively prevent women and non-binary gamers from participating as equals. Gaming has historically resisted progressive change, and the industry continues to produce content for the assumed heterosexual male target audience. In more recent years, steps have been taken towards recognising these entrenched issues and implementing change, such as improving gender representation in games, however attempts are inconsistent, and other aspects of the culture are slow to adapt. The gap between the number of male, female, and …

Healing Rites : A Performance Autoethnography, Auryn Rotten

Postgraduate

The following is an exegesis that accompanies a performance in film. Together they reveal an autoethnographic journey of a researcher-filmmaker that contributes to the open-ended examination of the human experience through the language of art. The study explores a disruptive, trauma-informed healing ritual of “wounding while healing”. The artistic and scholarly practice is guided by the theoretical principles of art-based research throughout the process. Centring around the lived experience of the researcher as a survivor of sexual assault; the knowledge generated through the work is motivated by a political and personal desire to provoke change. Correspondingly, the film performance interrupts …

Writing Myths: Interpreting And Translating Meaning, Naomi Robinson

Postgraduate

Myths and stories are integral communication devices that cross both lived and shared experience while manifesting through internal and external meaning-making processes. To determine the nature of myths in and as popular culture, this project sought to use practise-led methods. In addition to storytelling and thematic analysis, this project involved the interpretation and adaptation of an ancient myth into a modern television series. By considering television shows as conduits of socio-political agendas, the creative process culminating in this exegesis highlighted how the perpetual influence of myths through knowledge, reference, and experience can be manipulated to drive cultural change.

As an …

Application Of Biochar As Beneficial Additive In Concrete, Temirlan Barissov

Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research

Biochar is a high-carbon solid material produced via thermal decomposition of organic biomass in a low-oxygen environment. Characterized with high water retention properties and high alkalinity, biochar is generally used for soil amendment and fertilization purposes. This study is intended to explore the feasibility of using biochar as a beneficial additive of the most used manmade material, concrete. Literature review revealed several studies where biochar was successfully implemented as an additive in concrete. The beneficial influence of biochar on the mechanical characteristics of concrete is based on nucleation and densification effects. However, the internal microstructure, porosity and chemical composition of …

Modeling Watershed Sensitivity To Climate Change In Systems Affected By Discharge Of Mine Tailings, Johnette C. Shockley

Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research

For more than a century, a large volume of gold-mining tailings was deposited in Whitewood Creek and the Belle Fourche River, tributaries to the Cheyenne River in western South Dakota. Much of it still remains, and field and historical evidence indicates continued remobilization of tailings-containing alluvium in these bedrock-dominated channels. Both long-term, natural fluctuations in climate and anthropogenically driven changes can impact regional precipitation, temperature, hydrologic patterns, and ecosystem functions. Such changes have the potential to affect both the transport and distribution of arsenic-laden sediments and mechanical erosion that can undermine the stability of channel-bed and overbank material.

This study …

Votes And Voters In Time And Space: The Changing Landscape Of Political Party Support In Kentucky, 1974–2020, Glenn Humphress

Department of Geography: Dissertations, Theses, and Student Research

This research examines the time-series geography of voter registrations, presidential elections, senatorial elections, and gubernatorial elections within Kentucky during the period from 1974 to 2020 to explore the dimensions of a changing geography of political party support. During this time Kentucky realigned from strong election support for the Democratic Party to consistent election support for the Republican Party. Using graphs, Dissimilarity Indices, cartographic analysis, and factor analysis, this study confirms aspects of intra-state sectionalism and periodization in election results identified in previous research but finds different characteristics of section and period in voter registrations. In effect this study finds support …

Video 101: Video Production Basics, Visually Explained, Chris Flanery

College of Journalism and Mass Communications: Professional Projects

As video becomes more prevalent in all aspects of life, the demand for competent video production skills continues to grow. Having the technical literacy to capture professional-level video is highly sought-after and begins with proper education and training. This project found the process for learning video production often fails to maximize on its full potential. Despite being a visual medium, most individuals surveyed and interviewed for this project who work in the video production industry report visuals are rarely used to demonstrate fundamental concepts in learning video production. These same individuals and additional research indicate visual aids help illustrate many …