Digital Commons Network^™

Modeling Effective Work Groups And Teams : An Assessment Of The Inclusion Of Social Value Orientation., Gary Daniel Jones

Electronic Theses and Dissertations

The purpose of this study is to examine research on effective work groups in terms of measurable input characteristics and relevant collective outputs. Antecedents and consequences of group processes are explored; models of work groups and teams are examined and assessed in light of subsequent research. Additionally, social value orientation – a behavioral trait known to predictably influence interpersonal outcomes – is introduced as a concept that is also relevant to group work. A revised model that includes social value orientation as a predictive factor for group productivity is presented and tested. This empirical study is a correlative, quantitative investigation …

Targeting The Major Regulator Of Mitosis., J. Mason Hoffman

Electronic Theses and Dissertations

Mitosis-inhibiting chemotherapeutics (e.g. taxanes) are frequently used to treat multiple cancer types. Recently, there has been much concern about the limited success of these drugs due to resistance and a lack of molecular targets. Thus, there is high demand for new drugs with diverse cellular targets. Targeting the regulators of mitosis is a promising approach. The anaphase promoting complex/cyclosome (APC/C) is an E3 ubiquitin ligase that controls cell cycle progression at multiple points. The interaction of ANAPC2 and ANAPC11, catalytic core subunits, is necessary for APC/C function. An in silico approach was used to identify compounds predicted to prevent assembly …

Metabolic Regulation Of Myocardial Adaptation To Exercise., Andrew Alan Gibb

Electronic Theses and Dissertations

While the benefits of exercise affect several organs, a significant adaptive response occurs within the heart. Exercise promotes cardiac growth, increases angiogenesis, and enhances cardiac function and these adaptations are associated with a cardioprotective phenotype. Additionally, extensive evidence shows that exercise dynamically regulates myocardial metabolism. This can be attributed to both changes in hormonal stimulation, increases in bioenergetic demand, and the bioavailability of circulating substrates. However, it is unclear whether these changes in metabolism contribute to physiologic cardiac growth. We reason that exercise-induced changes in metabolism are required to balance the catabolic and anabolic reactions needed for growth. Specifically, we …

Understanding And Developing Estimates Based On Practical Foundation Methods For Alaska's Discontinuous Permafrost Region, Paul P. Dennison

Theses and Dissertations

This research uses a quantitative analysis to develop a family of curves and a calculator for potential foundation thresholds in the discontinuous permafrost region of Alaska. The United States Pacific Command (PACAF) is bolstering the region by advocating for the F-35, KC-46, and the newly proposed long-range bomber to be stationed in Alaska. These next generation aircrafts and warfighters will need new facilities and beddown plans to efficiently and effectively carry out their mission. The biggest obstacle in the region is permafrost; this unique polar phenomenon is found throughout the northern half of Alaska. Fairbanks in particular has multiple military …

President Broderick's Leadership In Sea Level Rise Initiative Featured In Nation's Top Higher Education Publication, Public Affairs & News Bureau, Old Dominion University

News Items

No abstract provided.

Community Invited To Discuss King Tide Event, Amy Matzke-Fawcett

News Items

No abstract provided.

Odu Sea Level Rise Initiative Featured In Premier Higher Education Publication, Public Affairs & News Bureau, Old Dominion University

News Items

No abstract provided.

Community Discussion: Catch The King Tide, Amy Matzke-Fawcett

News Items

No abstract provided.

The Tri-State High School Band Symposium: An Honor Band Experience For The Region's Finest Wind And Percussion Players And Their Directors, Usu Wind Orchestra, Thomas P. Rohrer, Jazz Orchestra, Jon Gudmundson, Caine Woodwind Quintet, Bonnie Schroeder, Aggie Marching Band, Lane Weaver, Caine Saxophone Quartet, Caine Brass Quintet, Max Matzen, Caine Percussion Quartet, Jason Nicholson, Robert Sheldon, Mathew Inkster

All Music Department Programs

A sampler concert conducted by Robert Sheldon & Mathew Inkster.

Distributions Of Krill And Antarctic Silverfish And Correlations With Environmental Variables In The Western Ross Sea, Antarctica, L. Brynn Davis, Eileen E. Hofmann, John M. Klinck, Andrea Piñones, Michael S. Dinniman

CCPO Publications

Antarctic krill Euphausia superba, crystal krill E. crystallorophias, and Antarctic silverfish Pleuragramma antarctica are key mid-trophic level species in the Ross Sea, connecting primary production to the upper trophic levels. Distributions of these species were constructed from observations made in the western Ross Sea from 1988 to 2004. Distributions of environmental conditions were obtained from a 5-km resolution circulation model (temperature, mixed layer depth, surface speed) and satellite-derived observations (chlorophyll, sea ice cover). A hierarchy of statistical methods determined correlations and relationships between species and environmental conditions. Each species occupies a localized habitat defined by different environmental characteristics. …

Revenue Sharing And Player Salaries In Major League Baseball, James Richard Hill, Nicholas A. Jolly

Economics Faculty Research and Publications

This article analyzes how changes made to the revenue sharing agreement in the 2007 Major League Baseball collective bargaining agreement influenced the salaries of position players and pitchers. The tax rates associated with revenue sharing decreased following ratification of the 2007 agreement. Theoretically, these changes should increase players’ marginal revenue product and, therefore, salaries. Results indicate that position players experienced an increase in salary following the 2007 agreement. Pitchers’ salaries also increased, but by a smaller amount. The effect of the 2007 agreement was different throughout the salary distribution for position players, but uniform throughout the distribution for pitchers.

Impact Of Terminology Mapping On Population Health Cohorts Impact, Barbara A. Berkovich

Dissertations and Theses (Open Access)

Background and Objectives: The population health care delivery model uses phenotype algorithms in the electronic health record (EHR) system to identify patient cohorts targeted for clinical interventions such as laboratory tests, and procedures. The standard terminology used to identify disease cohorts may contribute to significant variation in error rates for patient inclusion or exclusion. The United States requires EHR systems to support two diagnosis terminologies, the International Classification of Disease (ICD) and the Systematized Nomenclature of Medicine (SNOMED). Terminology mapping enables the retrieval of diagnosis data using either terminology. There are no standards of practice by which to evaluate and …

Shallow Aggregate Ebb-And-Flow System For Greenhouse Lettuce Production, Joseph Chidiac

Graduate Theses and Dissertations

A novel soilless technique for the production of lettuce was developed and evaluated for its viability for ornamental greenhouse growers adapting their ebb-and-flood irrigation benching systems to diversify into growing lettuce, without having to purchase the conventional nutrient film technique (NFT) or deep flow technique (DFT) hydroponic systems. The experimental design was a three by four factorial, with three treatments for aggregate depth (19, 38, and 57 mm) and four treatments for irrigation frequency (once every 1, 2, 4, or 8 hours), for a total of twelve treatment combinations. Each treatment was replicated three times in a randomized complete block …

Local Item Response Theory For Detection Of Spatially Varying Differential Item Functioning, Samantha Robinson

Graduate Theses and Dissertations

Mappings of spatially-varying Item Response Theory (IRT) parameters are proposed, allowing for visual investigation of potential Differential Item Functioning (DIF) based upon geographical location without need for pre-specified groupings and before any confirmatory DIF testing. This proposed model is a localized approach to IRT modeling and DIF detection that provides a flexible framework, with current emphasis being on 1PL/Rasch and 2PL models. Applications to both simulated and empirical survey data, utilizing a box-car kernel weighting scheme with several fixed bandwidths on irregular spatial lattices, are presented both to demonstrate the methodology and to illustrate the benefit of localized IRT modeling. …

Bank Lending Channel And Changing Credit Standards In The Residential Mortgage Market, Salman Tahsin

Graduate Theses and Dissertations

My dissertation examines the relationship between bank conditions and the residential mortgage market. The first essay investigates the effect of bank distress on the residential mortgage market during the 2007-09 financial crisis. We use the county-aggregated change in the ratio of jumbo to nonjumbo mortgage acceptance rate as an instrumental variable to control for endogeneity between bank distress and county economic conditions. The median decrease in the instrumental variable explains an additional 1.5 percentage point decline in county home prices and a 20 basis point rise in the county unemployment rate, which represent 15% and 5%, respectively, of their median …

Transcriptome-Based Gene Networks For Systems-Level Analysis Of Plant Gene Functions, Chirag Gupta

Graduate Theses and Dissertations

Present day genomic technologies are evolving at an unprecedented rate, allowing interrogation of

cellular activities with increasing breadth and depth. However, we know very little about how the

genome functions and what the identified genes do. The lack of functional annotations of genes

greatly limits the post-analytical interpretation of new high throughput genomic datasets. For plant

biologists, the problem is much severe. Less than 50% of all the identified genes in the model plant

Arabidopsis thaliana, and only about 20% of all genes in the crop model Oryza sativa have some

aspects of their functions assigned. Therefore, there is an …

Performance Evaluation And Risk Management: Time Series Bootstrap Analysis Of The Mutual Funds And Banking Sectors, Lifa Huang

Graduate Theses and Dissertations

The Financial Services Modernization Act of 1999, also known as the Gramm–Leach–Bliley Act (“Act”), repealed a regulatory proscription in the Glass–Steagall Act of 1933 that prohibited commercial bank holding companies (BHCs) from underwriting most bonds, equities, and insurance policies. After the passage of the Act in November 1999, BHCs that converted to financial holding companies (FHCs) were allowed to engage in securities underwriting without restrictions. The first paper examines whether the removal of barriers to securities underwriting had an adverse impact on the overall stability of the financial sector, and thereby, contributed indirectly to the financial crisis of 2008. The …

Writing For Keeps-Instruction And Achievement, Jason Adams

Graduate Theses and Dissertations

The study was conducted in a small rural Texas district. Students within the district were struggling with successful writing initiatives. Achievement and accountability within the district were below state and regional averages consistently for many years. Writing instruction in the district needed attention to help students and teachers experience writing success. The study aimed to answer the following research questions: (1) What instructional practices do Frazier ISD teachers utilize to teach writing? (2) What aspects of writing do Frazier ISD students struggle to understand? (3) To what extent does the State of Texas Assessments of Academic Readiness (STAAR) test impact …

Motivating Teachers To Lead In Low-Performing Schools: A Qualitative Study Of School Leaders In Three Arkansas High Schools, Joseph D. Fisher

Graduate Theses and Dissertations

This qualitative research study addressed the problem of motivating teachers to take on leadership roles in “low-performing” schools. Coupled with the high demands of the Every Student Succeeds Act (ESSA) being placed on public school principals to ensure that all students achieve and successfully graduate high school, better ways to distribute leadership and share responsibilities among teachers were identified. The research question and purpose of this phenomenological study was to identify the perceived leadership behaviors of high school principals in once labeled “low-performing” schools that support the motivation of teachers to take on leadership roles. Nine identified teacher leaders and …

The Perception Of The Freshman Transition: Taking A Closer Look At The Freshman Academy, Frankie Jo Lizar

Graduate Theses and Dissertations

The purpose of this study was to examine teacher, student, and parent perceptions of the high school transition program within a Freshman Academy at one Midwest high school using a mixed-methods approach with a convergent design. Interviews were done with teachers that teach primarily freshman students, and perception surveys were used with teachers, students, and parents to answer the following research questions:

a) How do freshman teachers believe the Freshman Academy interventions influence students’ successful transition into high school?

b) What are staff’s perceptions of the Freshman Academy in preparing students for success in high school?

c) What are students’ …

Identifying Genetic Factors Influencing Sperm Mobility Phenotype In Chicken Using Genome Wide Association Studies, Primordial Germ Cell Transplantation, And Rnaseq., Sohita Ojha

Graduate Theses and Dissertations

Sperm mobility is a major determinant of male fertility in chicken. In spite of low heritability of reproductive traits, sperm mobility has high heritability index which suggests presence of quantitative trait loci (QTLs) governing the trait. Our research focused on three objectives: i) to identify the QTLs affecting low mobility phenotype in chicken, ii) to understand the impact of Sertoli-cells and germ cells interactions in influencing the mobility phenotype and iii) to identify the genes and gene networks differentially expressed in male and female PGCs. To detect the QTLs, genome wide association studies (GWAS) was conducted which revealed the presence …

Fall Risk In Sedentary, Recreationally Active, And Masters Athlete Older Adults, Felicia Elizabeth Squires

Graduate Theses and Dissertations

The purpose of this study was to examine whether different habitual activity levels may affect balance ability in older adults. Balance must be studied as poor balance increases likelihood of falls. This study examined activity levels in older adults and effect on balance ability. Fifty-nine older adults aged 66.5 ± 9.5 participated. Three groups were separated by physical activity level. First group had 13 masters athletes, older adults performing least 150 minutes of aerobic activity a week and competing in nationally sanctioned event within the last six months. Twenty-seven older adults comprised recreationally active group performing at least 150 minutes …

Free-Space Measurements Of Dielectrics And Three-Dimensional Periodic Metamaterials, Clifford E. Kintner

Graduate Theses and Dissertations

This thesis presents the free-space measurements of a periodic metamaterial structure. The metamaterial unit cell consists of two dielectric sheets intersecting at 90 degrees. The dielectric is a polyetherimide-based material 0.001” thick. Each sheet has a copper capacitively-loaded loop (CLL) structure on the front and a cut-wire structure on the back. Foam material is used to support the unit cells. The unit cell repeats 40 times in the x-direction, 58 times in the y-direction and 5 times in the z-direction. The sample measures 12” × 12” × 1” in total. We use a free-space broadband system comprised of a pair …

Our Land Is Not Just Soil: Knowing, Feeling, And Doing Environmental Activism In The Arkansas Ozarks, Ramey Arlen Moore

Graduate Theses and Dissertations

The Ozarks is a holey place, an ancient plateau formed from ancient rocks and the sediment of millions of years of living things. The Ozarks is also, from another perspective a place made from a mesh of overlapping lines, lines of migration, lines of living things, lines of water movement over and through the land. This dissertation engages with the practice of conservation and environmentalism as it is performed and lived by Ozarkers and Arkansawyers, natives and transplants. Based on more than a year of ethnographic fieldwork conducted with the Buffalo River Watershed Alliance, Save the Ozarks, Arkansas Master Naturalists, …

Behavioral Intervention Teams: An Exploration Of Team Member Perceptions At Oklahoma Regional Universities, Sheila J. Self

Graduate Theses and Dissertations

The aim of this study was to examine Behavioral Intervention Teams from the perspective of twelve team members at four regional universities in Oklahoma. This study strengthened the knowledge base regarding team-member perceptions of Behavioral Intervention Team effectiveness, functioning, resources, needs, state factors, and campus impacts, and added qualitative data to the existing body of literature. Behavioral Intervention Teams were designed to be a tool for preventing campus violence and addressing behaviors of concern through information gathering, analysis, and intervention. While it may never be known how many acts of violence, suicides, or other student issues have been prevented or …

Power Interface Design And System Stability Analysis For 400 V Dc-Powered Data Centers, Yuzhi Zhang

Graduate Theses and Dissertations

The demands of high performance cloud computation and internet services have increased in recent decades. These demands have driven the expansion of existing data centers and the construction of new data centers. The high costs of data center downtime are pushing designers to provide high reliability power supplies. Thus, there are significant research questions and challenges to design efficient and environmentally friendly data centers with address increasing energy prices and distributed energy developments.

This dissertation work aims to study and investigate the suitable technologies of power interface and system level configuration for high efficiency and reliable data centers.

A 400 …

Paleozoic Sandstones In The Tri-State Region, Southern Ozarks: Tectono-Stratigraphic Sequence Development And Compositional Evolution, The Source And Delivery Conundrum, And The Regional Tectonic History, Elvis Chekwube Bello

Graduate Theses and Dissertations

The Paleozoic stratigraphic record of the Ozark Region, southern midcontinent has been divided into at least 33 formations, with the most significant thickness of 9692 feet preserved in northwest Arkansas. The potential thickness would have been much greater, but epeirogenic movements and sea-level rise and fall produced regional surfaces of erosion reducing the record. That interplay between tectonics (epeirogenic movements) and eustatic change (transgressive-regressive cycles) preserved in the Ozark sedimentary history provides the basis for recognition of five distinct, but related, tectonostratigraphic units designated TS 1 through TS 5: Late Precambrian-Middle Cambrian (TS 1), Late Cambrian-Earliest Ordovician (TS 2), Early …

A Study Of The Prevalence Of Gastrointestinal Nematodes In Goats Obtained From Northwest Arkansas, Christine Rose Weingartz

Graduate Theses and Dissertations

Parasitic helminths have always been an issue in small ruminant production; pathogens that pose great negative impact on goat health and productivity. Insufficient work has been done to document the prevalence of parasitic helminths in the United States, especially in the south and southeast, where the largest goat populations are found.

The aim of this study was to survey the prevalence of infections by gastrointestinal nematodes in goats in Northwestern Arkansas. Gastrointestinal tracts were examined from 41 goats of various locations around Northwest Arkansas. Worm species were identified and population burdens were determined. Coprology was correlated with the actual worm …

Bacterial And Archaeal Nitrifier Communities After Seven Years Surface Ground Cover And Nutrient Management In An Orchard Soil, Mashael Albalawi

Graduate Theses and Dissertations

Nitrification is oxidation of ammonia to nitrite and subsequently to nitrate. The rate limiting step of nitrification, ammonia oxidation to nitrite, was thought for many years to be carried out primarily by ammonia oxidizing bacteria (AOB). However, using molecular techniques and investigating the amoA gene, ammonia-oxidizing archaea (AOA) were discovered. Understanding how long-term application of surface ground covers and organic fertilizers to perennial systems affect microbial communities is critical for sustainable soil management. An organically managed experimental apple orchard soil received seven years (2006 – 2013) of annual, surface applications of poultry litter or commercial fertilizer compared to no fertilizer …

Bayesian Model For Detection Of Outliers In Linear Regression With Application To Longitudinal Data, Zahraa Al-Sharea

Graduate Theses and Dissertations

Outlier detection is one of the most important challenges with many present-day applications. Outliers can occur due to uncertainty in data generating mechanisms or due to an error in data recording/processing. Outliers can drastically change the study's results and make predictions less reliable. Detecting outliers in longitudinal studies is quite challenging because this kind of study is working with observations that change over time. Therefore, the same subject can produce an outlier at one point in time produce regular observations at all other time points. A Bayesian hierarchical modeling assigns parameters that can quantify whether each observation is an outlier …