Digital Commons Network^™

Effect Of Body Size And Exercise On Mood State, Alexandra Lachance

Graduate Theses and Dissertations

Exercising in the presence of nature (i.e., "green exercise"), has been shown to heighten the physiological and mental benefits of traditional exercise on non-obese individuals. The effects of green exercise on obese individuals are unknown. It is hypothesized that green exercise is more beneficial for obese (greater positive improvements in mental health scores), compared to non-obese individuals. For example, the benefits of green exercise could help lower feelings of depression, improve mood and self-esteem to increase the propensity of obese individuals to meet exercise recommendations. Accordingly, this study investigated the physiological and psychological effects of green exercise on 12 obese …

Energy And Spectral Efficient Wireless Communications, Guoqing Zhou

Graduate Theses and Dissertations

Energy and spectrum are two precious commodities for wireless communications. How to improve the energy and spectrum efficiency has become two critical issues for the designs of wireless communication systems. This dissertation is devoted to the development of energy and spectral efficient wireless communications. The developed techniques can be applied to a wide range of wireless communication systems, such as wireless sensor network (WSN) designed for structure health monitoring (SHM), medium access control (MAC) for multi-user systems, and cooperative spectrum sensing in cognitive radio systems.

First, to improve the energy efficiency in SHM WSN, a new ultra low power (ULP) …

Pre- And Post- Wage Differences Of Trade Adjustment Assistance Job Training Participants In Arkansas, Kimberley Hall Gordon

Graduate Theses and Dissertations

A number of costs are associated with the implementation of trade agreements not the least of which is the cost to the American workforce. The information age ushered in an era of globalization unlike anything the world economy had experienced before. As countries raced forward to dominate emerging markets and grow market share, millions of American workers were left in the wake. A remedy to the plight of the dislocated worker was found in trade adjustment assistance, specifically in job training benefits.

This study examined the wage differences experienced by Trade Adjustment Assistance (TAA) job training participants served through the …

What Is The Participant Learning Experience Like Using Youtube To Study A Foreign Language?, Yuan-Hsiang Lo

Graduate Theses and Dissertations

This research is to explore and understand participants' experience using YouTube to learn a foreign language. YouTube and learning has become more and more popular in the recent years. The finding of this research will be adding more understanding to the emerging body of knowledge of YouTube phenomenon. In this research, there are three interviews and two questionnaires. The interviews are conducted to find in-depth responses from participants; the questionnaires are used to inquire demographic and basic information about the participants. There are twelve themes found in this research. These themes reflect on the perceived experience using YouTube to learn …

Thermal And Electrical Parasitic Modeling For Multi-Chip Power Module Layout Synthesis, Zihao Gong

Graduate Theses and Dissertations

This thesis presents thermal and electrical parasitic modeling approaches for layout synthesis of Multi-Chip Power Modules (MCPMs). MCPMs integrate power semiconductor devices and drive electronics into a single package. As the switching frequency of power devices increases, the size of the passive components are greatly reduced leading to gains in efficiency and cost reduction. In order to increase switching frequency, electrical parasitics in MCPMs need to be reduced through tighter electronic integrations and smaller packages. As package size is decreased, temperature increases due to less heat dissipation capability. Thus, it is crucial to consider both thermal and electrical parasitics in …

A Watershed Scale Evaluation Of Selected Second Generation Biofeedstocks On Water Quality, Gurdeep Singh

Graduate Theses and Dissertations

This study compares a novel simulation approach to the conventional Soil and Water Assessment Tool (SWAT) modeler's approach for targeting biofuel crop production on marginal lands. In conventional SWAT modeling approach, non-spatial definition of hydrological response units (HRUs) results in the simulation of biofuel crops on both marginal and non-marginal land. This study provides an alternative approach in which a marginal-land raster was integrated into the land use and land cover (LULC) raster in such a way that the land uses were divided into marginal and non-marginal components. This modified LULC was used for model setup which resulted in marginal …

New Applications Of Mass Spectrometry For Drug And Lipid Analysis, Elizabeth Lauren Emerson

Graduate Theses and Dissertations

Mass spectrometry is an important tool used in many different disciplines and settings that include forensics, drug discovery, environmental analysis, and proteomics. Gas chromatography - mass spectrometry (GC-MS) and matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI - TOF MS) are two of the most important instruments used for analysis of compounds. Chapters 1 and 2 of this discussion use GC-MS for the investigation of synthetic cannabinoids in `K2' incense products and the detection of metabolites in urine samples from individuals suspected of consuming these mixtures. Analytical standards were synthesized and used for identification and confirmation of structures. Detection of …

Design And Analysis Of An Adaptive Asynchronous System Architecture For Energy Efficiency, Brent Michael Hollosi

Graduate Theses and Dissertations

Power has become a critical design parameter for digital CMOS integrated circuits. With performance still garnering much concern, a central idea has emerged: minimizing power consumption while maintaining performance. The use of dynamic voltage scaling (DVS) with parallelism has shown to be an effective way of saving power while maintaining performance. However, the potency of DVS and parallelism in traditional, clocked synchronous systems is limited because of the strict timing requirements such systems must comply with. Delay-insensitive (DI) asynchronous systems have the potential to benefit more from these techniques due to their flexible timing requirements and high modularity. This dissertation …

The Role Of Centromeric Chromatin And Kinetochore-Associated Factors In Chromosome Segregation, Wesley Williamson

Graduate Theses and Dissertations

Previous work in our lab has identified a point mutation in HTA1, one of the genes encoding histone H2A, which causes an increase-in-ploidy phenotype in Saccharomyces cerevisiae. This histone mutant strain was used to carry out a transposon insertion screen to identify suppressors of the increase-in-ploidy phenotype. This screen identified all three subunits of the Hda histone deacetylase complex, HDA1, HDA2, and HDA3. This study aims to elucidate the function of the Hda complex in chromosome segregation by exploring interactions among the members of the complex, as well as interactions between Hda complex and kinetochore components. …

Study Of Current Optocoupler Techniques And Applications For Isolation Of Sensing And Control Signals In Dc-Dc Converters, Jake Williams

Graduate Theses and Dissertations

There is a need for power switches that can operate at high voltage, high temperature, and high switching frequencies with low losses. Power switches fabricated from wide bandgap materials such as silicon carbide (SiC) or gallium nitride (GaN) can outperform conventional silicon switches due to material property advantages. Another common problem in grid-connected applications is the need for high voltage-isolation of gate drivers and control circuitry while operating efficiently at the high switching frequencies, high power density, and high temperatures made possible by wide bandgap devices. Transformers cannot operate at the temperatures of these wide bandgap devices and a new …

The Lived Experience Of The Parents Of High School Dropouts: A Phenomenological Study, Christine Ann Silano

Graduate Theses and Dissertations

The purpose of this study is to describe the experiences and perceptions of parents whose children did not receive a high school diploma. This subpopulation has been rarely studied. The central question is, "What are the perceptions and experiences of the parents of public high school dropouts as they pertain to schools, their children, and themselves?"

This phenomenological study examined the lived experience of the parents of high school dropouts. Five women and one man participated in the study by sitting for interviews. The collected interview data was transcribed and analyzed using qualitative methodology including open and axial coding as …

Pilot Study: A Guide To Equine Welfare Assessment, Taylor A. Fabus, Karen Waite, John Shelle, Janice Siegford, Julie Chapin

Journal of Extension

In response to growing interest in equine welfare and the need for 4-H curriculum, a pilot study of equine welfare curriculum was conducted with 4-H clubs (N=15). An overall low response rate of 26.67% was experienced. An online survey was then conducted in order to determine factors affecting involvement. Time constraints for both youth and leaders were among the most commonly cited deterrents to completion. Survey responses also suggested that following a hybrid (of hard copy and online instruction) may increase usability and effectiveness of A Guide to Equine Welfare Assessment.

Poultry Farmers' Willingness To Participate In Energy Audits, Kimberly L. Jensen, Roland K. Roberts, Burton C. English

Journal of Extension

Farmers' willingness to participate in energy audits of their poultry operations is influenced by a variety of farm characteristics and farmer demographics. Data from a 2008 survey of Tennessee poultry farmers were used in a logit regression to investigate factors influencing willingness to participate in energy audits. Size of operation, energy costs, use of propane, farm income, use of energy efficiency measures, and share of acreage in row crops influenced willingness to participate. Farmer demographics, including farming experience, educational attainment and use of Extension services, also influenced willingness to participate.

An Affordance-Based Framework For Human Computation And Human-Computer Collaboration, R. Jordan Crouser, Remco Chang

Computer Science: Faculty Publications

Visual Analytics is “the science of analytical reasoning facilitated by visual interactive interfaces” [70]. The goal of this field is to develop tools and methodologies for approaching problems whose size and complexity render them intractable without the close coupling of both human and machine analysis. Researchers have explored this coupling in many venues: VAST, Vis, InfoVis, CHI, KDD, IUI, and more. While there have been myriad promising examples of human-computer collaboration, there exists no common language for comparing systems or describing the benefits afforded by designing for such collaboration. We argue that this area would benefit significantly from consensus about …

Optimization Of Nonlinear Switch Cells For Switching Converters, Bradley Alan Reese

Graduate Theses and Dissertations

Switch cells consist of an array of power switches and passive components which can replace the main switches alone in many power topologies, allowing reduced switching loss without altering the power topology directly. This thesis discusses the development of a switch cell topology that utilizes a saturable resonant inductor to reduce the size and power loss of the cell. Additionally, the cell transfers energy stored in the inductor into a capacitor for efficient energy storage during the cell's conduction region. This energy is then transferred back to the system when the cell turns off, thus reducing the total switching energy.

Project Implementation: Classification Of Organic Soils And Classification Of Marls—Training Of Indot Personnel, Alain El Howayek, Antonio Bobet, Sulaiman Dawood, Andrew Ferdon, Marika Santagata, Nayyar Zia Siddiki

JTRP Technical Reports

This is an implementation project for the research completed as part of the following projects: SPR-3005 - Classification of Organic Soils and SPR-3227 – Classification of Marl Soils. The methods developed for the classification of both soils have been incorporated in INDOT standard specification 903.05 and 903.06 respectively. Both projects included recommendations for implementation that reflected input from the project PA and SAC. A specific recommendation from both projects was that INDOT soil technicians be trained to perform the required tests and classify soils based on the revised classification systems. This project was initiated to carry out the implementation of …

Best Practices For Indot-Funded Work Zone Police Patrols, Erdong Chen, Andrew P. Tarko

JTRP Technical Reports

Transportation agencies across the U.S. are expending a great deal of effort to improve highway work zone safety. Among those efforts is a special fund for work zone enforcement established by the Indiana Department of Transportation (INDOT). The allocation of enforcement funding was based on expert knowledge and weights and scores applied to work zone characteristics considered relevant to traffic safety. The objective of the reported project was to develop a rational and defendable tool for programming police enforcement that maximizes the safety benefits of police enforcement in INDOT work zones.

To understand what affects work zone safety, the research …

The Road To Pomp And Circumstance For Ell Students: The Perceived Ambivalent Schooling Experience Of Ell Students With Mexican Ancestry In An Urban Midwestern High School, Kristine M. Sudbeck

Department of Anthropology: Theses and Student Research

Perceptions of high school faculty and staff members about the graduation outcomes of English language learners of Mexican ancestry were explored. Throughout the course of one semester, observations were made and field notes taken in classrooms and other school locations. Interviews were conducted with 25 faculty/ staff members and 7 students, all of whom were former or current English language learners of Mexican ancestry. The author used a mixed methods strategy; interviews were coded for themes to assess qualitative data, and SPSS was used to analyze quantitative data. Faculty/staff perceived the top three indicators of whether or not an ELL …

Still Confronting The Confronting The Consolidation Conundrum, Richard Marcus

Notre Dame Law Review

A correction in the name of Joan E. Steinman published in the issue 4 of the Notre Dame Law Review is presented.

The Malleability Of Collective Litigation, Shay Lavie

Notre Dame Law Review

The article focuses on two manifestations pertaining to collective litigation procedures including first, class actions can be avoided by defendants through "individualizing" the prospective class and second, they can selectively contract with victims to reduce their capacity to litigate. It discusses the U.S. Supreme Court's decision in Wal-Mart v. Dukes, in which Wal-Mart Stores Inc. avoided collective litigation because the decision for employment was made by local supervisors.

Killing Them With Kindness: Examining Consumer-Friendly Arbitration Clauses After At&T Mobility V. Concepcion, Myriam Gilles

Notre Dame Law Review

The article focuses on the U.S. Supreme Court case AT&T Mobility LLC v. Concepcion, in which California's "Discover Bank rule" was struck by the Court under the Federal Arbitration Act, which was upheld by the California Supreme Court in the court case Discover Bank v. Superior Court. It provides information that the rule is a judge-made rule which depicts that class action waivers are unforceable in arbitration agreements if such agreements are mentioned in standard form consumer contracts.

The Way Forward After Wal-Mart, George Rutherglen

Notre Dame Law Review

The article discusses the case Wal-Mart Stores Inc. v. Dukes, in which the U.S. Supreme denied class action certification in its ruling. It informs that the decision of Supreme Court was opposed by some people in liberal circles, also including Justice Ruth Bader Ginsburg. It presents information that the Justice agreed to a point that a class action certification is not possible under the Federal Rule of Civil procedure 23 (b) (2), which governs class actions in which injunctive relief.

Regulatory Litigation In The European Union: Does The U.S. Class Action Have A New Analogue, S. I. Strong

Notre Dame Law Review

The article discusses an introduction of a regulatory litigation in the European Union (EU) analogous to class actions in the U.S. It mentions that earlier the U.S. was the only country to carry out large scale litigation as well as regulatory litigation but EU changed its present policies to adopt cross border collective redress in February, 2012. It presents a combination of new governance theory and equivalence functionalism to determine whether or not EU has adopted regulatory litigation.

Activity Of The Beta-Cyanoalanine Synthase Pathway Is Associated With The Response To Abiotic Stress By Arabidopsis Thaliana., Marylou Machingura

Dissertations

Cyanide is produced throughout a plant's life cycle alongside the hormone ethylene by oxidation of 1-aminocyclopropane-1-carboxylic acid. Production increases during certain developmental stages such as seed germination, seedling elongation, fruit ripening and senescence. Abiotic stresses increase ethylene production giving rise to `stress cyanide'. Cyanide also comes from metabolism of cyanogenic compounds. Cyanide is however, a toxic chemical which readily binds to metallo-enzymes inhibiting primary metabolic processes. Plants have mechanisms to maintain cyanide homeostasis such as the β-cyanoalanine pathway whereby cysteine reacts with cyanide forming β--cyanoalanine, mediated by β-cyanoalanine synthase and cysteine synthase. A dual nitrilase 4 enzyme then converts the …

Image Bodies, Avatar Ontologies: Rendering The Virtual In Digital Culture, Adam M. Davis

Dissertations

In 2009 five avatar-themed films were released, one of which became the highest grossing film to date, signaling that in addition to their popularity in videogames and virtual worlds, avatars are culturally salient figures which demand scholarly attention. Avatars, virtual environments, and user behavior have evolved significantly since virtual reality captured public and academic attention at the close of the twentieth century, and this dissertation is an attempt to theorize the avatar in contemporary digital culture. By interlacing new media philosophy and analyses of cinematic texts I situate the avatar at the nexus between digital images and interactive bodies, with …

Understanding Reading Through The Eyes Of Third-Grade Struggling Readers, Christine Elizabeth Wiggs

Dissertations

AN ABSTRACT OF THE DISSERTATION OF CHRISTINE E. WIGGS, for the Doctor of Philosophy degree in EDUCATION, presented on October 19, 2012, at Southern Illinois University Carbondale. TITLE: UNDERSTANDING READING THROUGH THE EYES OF THIRD-GRADE STRUGGLING READERS MAJOR PROFESSORS: Dr. Marla H. Mallette / Dr. Lynn C. Smith Within the vast research base on struggling readers, very few studies address the nature of struggling readers from their own perspectives; that is, how struggling readers experience reading instruction. The purpose of this qualitative case study research was to gain a deeper understanding of how three third-grade struggling readers viewed themselves as …

Characterization Of Starch By Vibrational Spectroscopy, Brandon H. Holder

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

To develop a dispersive Raman spectroscopic method for measuring amylose-amylopectin ratios of corn starch mixtures, 67 mixtures were prepared by randomly mixing waxy and normal corn starches. Amylose contents were measured using a dual wavelength iodine binding colorimetric method. Raman data were collected from 250 to 3200 cm^-1 using optimized instrument parameters. Partial least-squares (PLS) and principal components regression (PCR) were used to prepare multivariate calibration models; however, PLS commonly outperformed PCR. Truncating the spectra to 250 to 2000 cm^-1 improved the results (r² of validation = 0.831, SEP = 2.90%). Removal of a cold water swelling …

Cortical Thickness In Neuropsychologically Near-Normal Schizophrenia, Derin J. Cobia, John G. Csernansky, Lei Wang

Faculty Publications

Schizophrenia is a chronic and potentially disabling disorder with widespread neuroanatomical abnormalities thought to be caused by progressive brain changes (Andreasen, 2010), and an equally wide variety of impairments in cognitive functioning (Palmer et al., 2009). In general, individuals with schizophrenia demonstrate significantly impaired performance on a full range of neuropsychological tasks, often reaching greater than one standard deviation below the norm (Dickinson et al., 2007). One particularly puzzling issue is that approximately 15–30% of schizophrenia patients have been found to perform in the normal range of neuropsychological functioning (Kremen et al., 2000; Palmer et al., 1997). Given hypothesized relationships …

Studies On Spreading Depolarization In Healthy And Metabolically Compromised Brain Tissues, Isamu Aiba

Biomedical Sciences ETDs

Spreading depolarization (SD) is a slowly propagating wave of depolarization of neurons and glia. Since its original discovery in 1944, SD has been observed in various experimental settings, both in vitro and in vivo. SD has recently been detected in brains of human patients with various injuries, and a contribution of SD to deleterious consequences of acute brain injury is increasingly accepted. iv The present dissertation work focus mainly on the characterization of SD and cellular events associated with it. Main interests of these studies are on underlying mechanisms that convert non-injurious factors into mediators of acute neuronal injury. One …

Agent-Based Virtual Humans In Co-Space: An Evaluative Study, Yilin Kang, Ah-Hwee Tan, Fiona Fui-Hoon Nah

Research Collection School Of Computing and Information Systems

Co-Space refers to interactive virtual environment modelled after the real world in terms of look-and-feel, functionalities and services. We have developed a 3D virtual world named Nanyang Technological University (NTU) CoSpace populated with virtual human characters. Three key requirements of realistic virtual humans in the virtual world have been identified, namely (1) autonomy: agents can function on their own; (2) interactivity: agents can interact naturally with players; and (3) personality: agents can exhibit human traits and characteristics. Working towards these challenges, we propose a brain-inspired agent architecture that integrates goal-directed autonomy, natural language interaction and human-like personality. We conducted an …