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Device Characterization And Compact Modeling Of The Sige Hbt In Extreme Temperature Environments, Beth Olivia Woods

Graduate Theses and Dissertations

The silicon germanium heterojunction bipolar transistor, SiGe HBT, has very high frequency response but limited voltage range. Commercial communication applications in wireless and system integration have driven the development of the SiGe HBT. However, the device's excellent electrical performance goes beyond the commercial environment. The SiGe HBT performs exceptionally at low temperatures. The device DC current gain and AC small-signal gain significantly increase in the cryogenic temperature range. Applications at low temperatures with expansive temperature range specifications need an HBT compact model to accurately represent the device's performance.

In this work, a compact model referenced at 300K was developed to …

The Consciousness Of Water: Narrative Flows, Environmental Change, And The Voice Of Yemen, Tricia Nellessen

Graduate Theses and Dissertations

Icebergs are melting in the Arctic. The Gulf of Mexico is warming and producing hurricanes such as Katrina. The delta of the southern United States is drying. And, Yemen will be the first country in modern history to experience a lack of accessible ground water, as soon as 2017 possibly. Yemen's situation has been tracked by scholars and governments since the 1960s. Despite this fact, cities have expanded in Yemen and the population has increased its use of water while little has been invested in desalination or infrastructure to offset growth. Climate change has affected humans for thousands of years; …

Everything Rises And Falls On Leadership: An Assessment Of Undergraduate Leadership Development Programs At The University Of Arkansas - Fayetteville, Louis Anthony Love

Graduate Theses and Dissertations

Today's students are the leaders of tomorrow, and their ability to lead in the 21st century will be critical to the sustainability of life, and the nation's ability to prosper will depend on the quality of leadership demonstrated at all levels of society. Student leadership development in institutions of higher education has never been more vital than it is today. In order to provide society with excellent and effective leadership that will be capable of handling unprecedented domestic and global economic and medical crises, as well as properly managing technological advancements, institutions of higher education must invest in the development …

The Impact Of State Characteristics On College Graduation Rates At Land-Grant Institutions, Melissa Bridges

Graduate Theses and Dissertations

As our nation's economy has become increasingly knowledge-based, an educated citizenry is paramount to maintaining a competitive edge in a global marketplace. Thus, college participation and completion have emerged as the gateway to survival and growth for individuals, states, and the nation, making college completion rates a top priority. Stakeholders have begun to equate graduation rates with institutional quality and performance and often use such data to make judgments, create policies, and allocate funding. However, graduation rates are not fully understood and numerous scholars urge caution when interpreting and utilizing single outcome measures. The purpose of this cross-sectional ecological study …

Comparing The Impact Of Traditional And Modeling College Algebra Courses On Student Performance In Survey Of Calculus, Jerry West

Graduate Theses and Dissertations

Students in higher education deserve opportunities to succeed and learning environments which maximize success. Mathematics courses can create a barrier for success for some students. College algebra is a course that serves as a gateway to required courses in many bachelor's degree programs. The content in college algebra should serve to maximize students' potential in utilizing mathematics and gaining skills required in subsequent math-based courses when necessary. The Committee for Undergraduate Programs in Mathematics has gone through extensive work to help mathematics departments reform their college algebra courses in order to help students gain interest in the utilization of mathematics …

Performance Of The Role Of Stanley Kowalski In Tennessee Williams' A Streetcar Named Desire, William Justin Walker

Graduate Theses and Dissertations

The truth in acting comes from living truthfully under imaginary circumstances. For partial fulfillment of my degree, I sought to bring this truth to the stage for the role of Stanley Kowalski in Tennessee Williams' A Streetcar Named Desire. In addition, I played the role of Reach in Lee Blessing's Down the Road.

A Secure And Fair Resource Sharing Model For Community Clouds, Santhosh S. Anand

Graduate Theses and Dissertations

Cloud computing has gained a lot of importance and has been one of the most discussed segment of today's IT industry. As enterprises explore the idea of using clouds, concerns have emerged related to cloud security and standardization. This thesis explores whether the Community Cloud Deployment Model can provide solutions to some of the concerns associated with cloud computing. A secure framework based on trust negotiations for resource sharing within the community is developed as a means to provide standardization and security while building trust during resource sharing within the community. Additionally, a model for fair sharing of resources is …

Studies On The Structure And Pathogens Of The Small Hive Beetle (Coleoptera: Nitidulidae), Natasha A. Wright

Graduate Theses and Dissertations

The small hive beetle (Aethina tumida, SHB) is an invasive pest of honey bee (Apis mellifera) colonies in the United States. The adult and larval beetles can ruin honey through fecal contamination and by vectoring a mutualistic yeast (Kodamaea ohmeri) that causes honey fermentation. These beetles also impact honey bee colonies by feeding on bee eggs, bee brood, and pollen. Severe beetle infestations can cause colonies to decline or abscond.

The SHB has been present in the United States since at least 1998. Since then, there have been several published papers on how to successfully rear these beetles. Laboratory rearing …

Magnesium Isotopic Compositions Of The Moon And Achondrites: Implications For Their Origin And Evolution, Fatemeh Sedaghatpour

Graduate Theses and Dissertations

The main objectives of this thesis are to estimate Mg isotopic compositions of the Moon and achondrites, to understand the behavior of Mg isotopes during magmatic differentiation processes in different planetary bodies, and to evaluate the extent of Mg isotopic heterogeneity in the solar system. In order to achieve these goals, Mg isotopes have been measured for 47 well-characterized lunar samples and 22 differentiated meteorites by MC-ICPMS. The limited Mg isotopic variations among mare and highland regolith, mare breccias, and highland impact-melt rocks reflect negligible Mg isotope fractionation during lunar surface processes (e.g. solar wind, cosmic rays, micrometeorite bombardments, meteorite …

In Autumn Rhythm, Daniel Joseph Thompson

Graduate Theses and Dissertations

In Autumn Rhythm is a twelve-minute work for orchestra inspired by the improvisational processes and artistic outlook of American painter Jackson Pollock (1912 - 1956). Pollock's work Autumn Rhythm manifests itself in this piece as a web of dense, improvisatory counterpoint that emphasizes aggregate texture over clear linear designs. The form is delineated by a metric palindrome extrapolated from the symmetrical rhythmic design of the opening section.

The Façade Of The Cabaret: The Costume Design Thesis Of Cabaret, Kelly Henry

Graduate Theses and Dissertations

This thesis describes the process used to create and realize the costume design for the

production of Cabaret put on at the University of Arkansas University Theatre in the spring of 2013. In this thesis I will explain how the costumes progressed from research ideas, to sketches and colored renderings, to finished stage costumes. The design process outlined in this thesis includes an analysis of the play, research, renderings, and an evaluation of the costume design process I followed.

Staging An Epic Journey: Developing The Set Design For Naomi Iizuka's Anon(Ymous), Ashleigh Louise Burns

Graduate Theses and Dissertations

In partial fulfillment of a Master of Fine Arts degree, this thesis paper will document the scenic design process of Naomi Iizuka's Anon(ymous), performed at the University of Arkansas in February, 2012. This paper will illustrate the approach taken by the designers and discuss the collaborative efforts of the design team and company of actors. The construction process and discoveries and decisions made during technical rehearsals will also be included.

This paper will attempt to answer the question: How do you stage the iconic and beloved story of The Odyssey with limited time, budget and skill? I will begin with …

Are All Voices Created Equal?: Conditional Indirect Effects Of Directness Of One's Voice On Perceived Uncertainty And Performance, Dennis Lawrence Poepsel

Graduate Theses and Dissertations

The purpose of the current investigations was to examine the effects of the amount of voice one is given during decision-making on group behaviors. In particular, across two studies, participants were members of groups that needed to make a decision. In these situations, participants were provided varying degrees of voice during a decision-making process. Depending on the study, participants were either given a direct voice (Personal Voice), an indirect voice (Group Voice), a direct voice and an indirect voice (Composite Voice), or were not allowed a voice (No Voice). The results of Study 1 found that having Personal Voice or …

Iii-V Bismide Optoelectronic Devices, Dongsheng Fan

Graduate Theses and Dissertations

This dissertation explores modeling, molecular beam epitaxy growth, and fabrication of III-V bismide optoelectronic devices, which are of great importance in modern applications of telecommunication, gas sensing, environment monitoring, etc. In the current room-temperature continuous-wave operational GaSb-based type-I InGaAsSb/AlGaInAsSb quantum well laser diodes in 3-4 um mid-wavelength range, the lasing wavelength and performance of the devices are limited due to the lack of hole confinement in the active regions. In this dissertation, a novel GaSb-based GaInAsSbBi material is proposed to replace the conventional InGaAsSb material in the quantum well region, which enables the laser diodes achieve up to 4 µm …

Media Focus In Afghanistan News Coverage, Abdul Qahar Jawad

Graduate Theses and Dissertations

This study explored the Media Focus in Afghanistan News Coverage to examine what categories of Afghanistan-related news received the largest amount of coverage during periods from 2010 to 2012. This study covered reports in The New York Times, The Washington Post, USA Today, and The Daily Outlook Afghanistan, a national Afghan news outlet, as a sample within a period of three months over three years (June 2010, July 2011, and August 2012). The 147 news stories' headlines of the four news organizations were studied to find what categories (process: peace talks, negotiation, and economic development; conflict: violence and military action; …

Landscape Epidemiology And Machine Learning: A Geospatial Approach To Modeling West Nile Virus Risk In The United States, Sean Gregory Young

Graduate Theses and Dissertations

The complex interactions between human health and the physical landscape and environment have been recognized, if not fully understood, since the ancient Greeks. Landscape epidemiology, sometimes called spatial epidemiology, is a sub-discipline of medical geography that uses environmental conditions as explanatory variables in the study of disease or other health phenomena. This theory suggests that pathogenic organisms (whether germs or larger vector and host species) are subject to environmental conditions that can be observed on the landscape, and by identifying where such organisms are likely to exist, areas at greatest risk of the disease can be derived. Machine learning is …

Student Motivation For Pursuing A Minor In Environmental Sustainability, Luanne Woods Lewis

Graduate Theses and Dissertations

Environmental sustainability dominates the global conversation seeking to increase awareness and change the culture of thinking concerning the relationship between humans and the Earth. Because many universities offer programs relative to environmental sustainability, a need exists to understand why students pursue these programs. This study examined student motivation for pursuing an environmental sustainability minor in one institution of higher education. Career, learning, monetary, and Social responsibility were the motivational factors considered in this study. The results of this study indicated significant differences among the motivational factors for pursuing a minor in sustainability among those students surveyed. Significant differences existed for …

Influence Of Horn Flies And Breed Type On Milk Production, Calf Production Traits, Pasture Behavior, And Temperament Measurements In Beef Cattle, Angela Rene Mays

Graduate Theses and Dissertations

An experiment conducted in El Reno, Oklahoma during the fly season (May - September/October) evaluated the effects of horn flies on milk production, calf performance, and pasture behavior and temperament measurements of beef cow calf pairs. Cows (n = 53) sired by Bonsmara (BONS; n = 7), Brangus (BRAN; n = 13), Charolais (CHAR; n = 8), Gelbvieh (GELV; n = 5), Hereford (HERF; n = 12), and Romosinuano (ROMO; n = 8) from Brangus dams and their Angus sired calves (n = 51) were used in the study. Horn fly counts (HFC) and milk yield and quality estimates were …

The Effect Of Symmetry On The Riemann Map, Jeanine Louise Myers

Graduate Theses and Dissertations

The Riemann mapping theorem guarantees the existence of a conformal mapping or Riemann map in the complex plane from the open unit disk onto an open simply-connected domain, which is not all of the complex plane. Although its existence is guaranteed, the Riemann map is rarely known except for special domains like half-planes, strips, etc. Therefore, any information we can determine about the Riemann map for any class of domains is interesting and useful.

This research investigates how symmetry affects the Riemann map. In particular, we define domains with symmetries called Rectangular Domains or RDs. The Riemann map of an …

A Conceptual Model Of Exploration Wayfinding: An Integrated Theoretical Framework And Computational Methodology, Matthew Lee Tenney

Graduate Theses and Dissertations

This thesis is an attempt to integrate contending cognitive approaches to modeling wayfinding behavior. The primary goal is to create a plausible model for exploration tasks within indoor environments. This conceptual model can be extended for practical applications in the design, planning, and Social sciences. Using empirical evidence a cognitive schema is designed that accounts for perceptual and behavioral preferences in pedestrian navigation. Using this created schema, as a guiding framework, the use of network analysis and space syntax act as a computational methods to simulate human exploration wayfinding in unfamiliar indoor environments. The conceptual model provided is then implemented …

Citizen Support For Northern Ohio Community College Funding Initiatives During An Economic Recession Recovery, Patricia Flores

Graduate Theses and Dissertations

The current research, Citizen Support for Northern Ohio Community College Funding Initiatives during an Economic Recession Recovery, asks the question: Do the citizens of Northern Ohio support community college funding during difficult economic times? Based on the theory of Stakeholder Analysis, the purpose of this concurrent, mixed-methods study was to investigate stakeholder support of community college funding initiatives, particularly for levy-funded community colleges that rely on the voting public to voluntarily contribute property taxes to support their institutions.

A comparison of Ohio community college statements and survey responses regarding stakeholder needs and beliefs indicated a significantly higher instance of …

Narrative Framing Of U.S. Military Females In Combat: Inclusion Versus Resistance, James Scott Herford

Graduate Theses and Dissertations

This study utilizes discursive data to examine how the strategic use of narratives inform policies that shape women's participation in military service overall and more specific, the current controversy over exclusion of women from participation in combat roles within the U.S. military. Specifically, I examine popular military newspapers, blogs and the Department of Defense 2012 Report regarding policies and regulations of female service members. In this study, I provide a sociological analysis of current military-cultural narratives and the institutional narrative discussing women's participation in combat roles in order to provide evidence of the current threat to the military form of …

Reading And Religion: Reconciling Diverse Reading Patterns And The First Year Composition Classroom, Evelyn Baldwin

Graduate Theses and Dissertations

While tolerance is the supposed standard of the first-year composition classroom, the writing patterns and argumentation skills of self-identified Christian students often frustrate teachers and create classroom dissonance and interpersonal divergence. This work looks at what apologetic and devotional texts these students are reading before they enter the classroom and then analyzes these works to see how well their content aligns with Composition I reading and writing requirements. To do this, the study takes information from two very distinct groups: religious leaders of young adults and Composition I instructors. The study begins by surveying religious workers to identify the top …

The Effects Of Summer Reading Programs On The Academic Achievement Of Elementary Students, Renee Deshommes

Graduate Theses and Dissertations

Children with weakened academic skills face the possibility of having less access to higher education, or advanced career opportunities later in life. Such disadvantages, if not addressed, may result in a series of diminished opportunities that may affect a child's overall quality of life. Several educational experts suggest that the negative effects of the academic achievement gap are cumulative, and many educational experts also believe that the achievement gap between high and low socioeconomic students continues to be a persistent problem for which few solutions have materialized. The potential for summer reading programs to be implemented as a mechanism to …

The Final Cut: Music For Film And Electronic Media, Johnathon Edward Paape

Graduate Theses and Dissertations

This thesis contains both music scores and audio files that pertain to the scoring of music for film and video games. My thesis contains five pieces that were written for either film or video games. The scores were made using Finale 2011 and the audio tracks were created using the sequencer Reaper in combination with East West Hollywood Brass, East West Stormdrums 2 and Vienna Symphonic Orchestra virtual instruments. With these, I will demonstrate my ability to effectively compose and orchestrate music for various genres.

A Comparative Study Of Middle And Junior High School Athlete And Non-Athlete Self-Perceptions Of Body Image And Satisfaction With Apparel Fit Using 3d Body Scan Technology, Lauren Speight

Graduate Theses and Dissertations

The purpose of this study was to explore the role of athletic program participation in middle and junior high school students' self-perceptions of body image, body satisfaction and apparel fit satisfaction. A survey was used to assess the students' self-perception of individual body image, satisfaction with different areas of the body and satisfaction with apparel fit. The research also assessed the accuracy between the students' perceived body image on a body image scale and their 3D body scan image. By using 3D body scanning technology, body scan images were obtained to accurately determine the size and shape for male and …

Fight Or Flight, Asher Griffith

Graduate Theses and Dissertations

Fight or Flight is a one-act, science-fiction opera. Outwardly the story of an astronaut who is marooned on the Moon, this dark comedy is an allegorical tale of forced isolation and loss; and of the anxiety and sadness that inevitably result. Musically, this piece began as an experiment in the reverse-engineering of mostly improvisatory methods of musical spoken-word delivery such as rap or slam poetry; this compositional device being a means to the more important end of creating a live musical theatre lacking the flippant sparkle commonly associated with Broadway and the like, but also free of the "intellectual" or …

Math, Science, And Social Studies Teachers' Attitudes Toward Diversity And Accommodation Of Diversity With Reference To Culturally And Linguistically Diverse Seventh, Eighth, And Ninth Grade Students In A Mid-South State, Nadia Khrais

Graduate Theses and Dissertations

The purpose of this study was exploring seventh, eighth, and ninth grade teachers' attitudes and beliefs in response to classroom diversity and how that is reflected on their instruction, learning styles, communication patterns, instrumental materials, and assessment patterns in math, science, and Social studies subject areas. In this mixed-method research, the designed survey consisted of 59 questions based on Likert scale and obtained information of ten demographic factors. The survey was delivered in two formats (online link and hard copy) to the participating schools in three urban school districts in a Mid-South State. The survey data were analyzed by using …

Personalized News Recommender Using Twitter, Satya Srinivasa Nirmal Jonnalagedda

Graduate Theses and Dissertations

Online news reading has become a widely popular way to read news articles from news sources around the globe. With the enormous amount of news articles available, users are easily swamped by information of little interest to them. News recommender systems are one approach to help users find interesting articles to read. News recommender systems present the articles to individual users based on their interests rather than presenting articles in order of their occurrence. In this thesis, we present our research on developing personalized news recommendation system with the help of a popular micro-blogging service "Twitter". The news articles are …

Development Of The Cultural Appreciation Of Martial Arts Scale, John Roderick Malmo

Graduate Theses and Dissertations

The purpose of this study was to develop a reliable and valid Social sciences instrument designed to measure the construct of Cultural Appreciation of Martial Arts. Data were collected from 114 adult martial arts participants. Study participants represented Taekwondo schools located in Arkansas and Filipino martial arts schools located in Arkansas, Missouri, Oklahoma, and Texas. Development of the instrument involved the use of an expert panel, a Q-sort, test-retest reliability test, Exploratory Factor Analysis, and Cronbach's alpha.

The study resulted in a 20-item, 3-factor scale that measures Cultural Knowledge, Cultural Sensitivity, and Cultural Awareness and is named the Cultural Appreciation …