Digital Commons Network^™

Beef Production And Consumption: Sustainable Alternatives, Jennifer W. Macadam, Roslynn Brain

Environment and Society Faculty Publications

Sustainable living involves choosing a lifestyle with minimal environmental impacts. The ultimate goal is to leave future generations with a healthier environment than the one we were born into. How can we do that with beef consumption? Beef is part of American culture, so is there a way to make wiser choices when it comes to purchasing beef ? The short answer is, yes!

Understanding Police-Citizen Conflict: A Neighborhood Environmental Perspective, Demosthenes Long

Education Doctoral

Many sociologists agree that environment influences behavior. What remains not known and difficult to determine is the impact of environmental factors, either singularly or in combination, on behavior. The purpose of the study was to identify factors or conditions present in the city’s neighborhoods and communities associated with allegations of police discourtesy or police use of offensive language during police-citizen encounters. An analysis of 2008 citizen complaint data against police officers in an urban U.S. city was conducted, guided by Turk’s theory of norm resistance and Sykes and Clark’s theory of deference exchange. Frequency analyses, Pearson’s chi-square tests of independence, …

The Role Of Antioxidant Rich Berries In The Prevention Of Postmenopausal Bone Loss, Lydia Karimi Kaume

Graduate Theses and Dissertations

Postmenopausal osteoporosis is the most prevalent form of osteoporosis and results in fragility fractures. Smoking is one of the major risk factors for osteoporosis and is known to aggravate bone loss in postmenopausal women due to increased oxidative stress and inflammation. Diet-based interventions using berries have shown bone protective affects in animal studies partially due to antioxidant and anti-inflammatory properties of their phenolic compounds. The goal of this research was to determine the effects of antioxidant-rich fruits in the prevention of postmenopausal bone loss. Our first study examined the dose dependent effects of blackberries in preventing bone loss in an …

A Daily Temperature Record For Central Texas, 1896-2011, Matthew Kain Taylor

Graduate Theses and Dissertations

A continuous record of 882,693 daily maximum, minimum, and mean temperature measurements for seven weather stations in central Texas dating from August 1, 1896, to August 31, 2011, were screened and corrected for missing values and inhomogeneities. The resulting data were averaged to create a 115-year unbroken regional record of daily temperature for central Texas. This record indicates warming in daily, seasonal, and annual temperatures. Winter warm temperature extremes have increased over the period of record while warm temperature extremes during the summer months have remained largely unchanged. Summer heat wave days and the length of heat waves have increased …

Cell Bioenergetics In Leghorn Male Hepatoma Cells And Immortalized Chicken Liver Cells In Response To 4-Hydroxynonenal Induced Oxidative Stress, Alissa Laura Piekarski

Graduate Theses and Dissertations

Bioenergetic mechanisms responsible for ATP production are essential in carrying out maintenance and cell-specific functions. In this study, hepatocytes (liver cells) were used to test both endogenous and exogenous stress on cellular respiration. The secondary lipid peroxide, 4-hydroxynonenal (HNE), was used because it alters bioenergetics by increasing mitochondrial proton leak that attenuates mitochondrial radical production and, therefore, endogenous oxidative stress. The major objective of this study was to demonstrate effects of HNE-induced oxidative stress on avian hepatocyte bioenergetics. Various chemical which help enable the determination of oxygen (O2) consumption linked to ATP synthesis (oligomycin), maximal O2 consumption (FCCP), and proton …

The Effects Of Symbolic And Realistic Threats On Moral Exclusion From The Scope Of Justice, Dana Charles Leighton

Graduate Theses and Dissertations

Moral exclusion refers to a psychological process that removes others from our moral community--those whom we treat with fairness and concern for their welfare. The present research is concerned with how perceived symbolic threats (threats to the ingroup's values, morals, and worldview) and realistic threats (threats to the ingroup's well-being and resources) are related to moral exclusion. Perceived symbolic and realistic threats from an outgroup (Mexican immigrants) were measured (Study 1) and manipulated (Study 2) to discover their predictive and causal relationships with moral exclusion. It was found that both symbolic and realistic threats predicted moral exclusion and did so …

The Contradictory Nature Of Natural Mothering: A Discursive Analysis, Britni Lee Ayers

Graduate Theses and Dissertations

In our contemporary sociopolitical rhetoric breastfeeding is something that is natural and something women ought to do because breast is best. The problem with this contemporary discourse of breastfeeding and motherhood is that the dominant medical, political, technological, and patriarchal discourses surrounding breastfeeding have merged to create an highly unattainable definition of what it means to be a "good mother" (Blum 1993). Moreover, upon a close examination, the most pressing political and Social debates of today surrounding the welfare reform, women's employment, reproductive technologies, and abortion, among many others, construct distinctions between "good mothers" and "bad mothers." However, there has …

A Reexamination Of The Eastern Collared Lizard (Crotaphytus Collaris Collaris) In Arkansas, Ashley A. Grimsley

Graduate Theses and Dissertations

Loss of suitable habitat is a threat to species worldwide. Habitat destruction, including loss, change, and fragmentation of habitat, is the leading cause of species extinction. Eastern collared lizards (Crotaphytus collaris collaris) are habitat specialists on glades. Both C. c. collaris and glade habitats are rare and of special concern in the state of Arkansas. Many glade populations have already been extirpated in the Ozarks of Arkansas and Missouri. Increasing knowledge of the distribution, habitat structure, and population dynamics of C. c. collaris is important to ensure the survival of this species in Arkansas.

A literature review of …

Characterization And Consumer Acceptance Of White Striping In Broiler Breast Fillets, Vivek Ayamchirakkunnel Kuttappan

Graduate Theses and Dissertations

White striping is an emerging issue in the broiler meat industry which causes concerns among the producers. The condition is characterized by the occurrence of white striations, parallel to the direction of muscle fibers, mainly in broiler breast fillets and thighs. Fillets can be categorized as NORM (normal or no striping), MOD (moderate) and SEV (severe) depending on the degree of white striping. As a result of few previous research studies on the condition, there is no information available on the impact of white striping on the consumer acceptance and various meat quality attributes. Our hypothesis was that the occurrence …

Time Waits For No One: Using Time As A Lens In Information Systems Research, Christopher M. Conway

Graduate Theses and Dissertations

Despite considerable research interest, IT projects still fail at a higher rate than other projects. Primary causes for these failures are relational, motivational, and scheduling issues on the team. Using the concept of time as a lens, the four essays in this dissertation examine how the ways that individuals and teams structure time can help explain these failures. The essays formulate the concept of temporal dissonance at the individual and team level, and explore how temporal dissonance causes negative consequences for IT workers and IT teams.

Essay one synthesizes temporal dissonance from concepts of temporal congruity and cognitive dissonance. It …

Water Quality Trends And Nutrient Loads For The Watershed Research And Education Center In Northwest Arkansas, 2009-2012, John Metrailer

Graduate Theses and Dissertations

Nitrogen, phosphorus, and sediment transport is a concern for Northwest Arkansas due to high exports through riverine discharge. Urban, agricultural, and pastured watersheds have been associated with increased N, P, and sediment concentrations when compared to forested catchments. The objective of this study was to evaluate discharge and nutrient loads associated with a small urban, agricultural (row crop), wetland influenced, and pasture/farmland sub-catchment within four ephemeral drainages and located at the Watershed Research and Education Center in Fayetteville, AR. Samples were collected during base flow conditions and periodic storm flow conditions from 2009-2012. Flow adjusted concentration trends were used to …

A Non-Parametric Visual-Sense Model Of Images: Extending The Cluster Hypothesis Beyond Text, Kong-Wah Wan, Ah-Hwee Tan, Joo-Hwee Lim, Liang-Tien Chia

Research Collection School Of Computing and Information Systems

The main challenge of a search engine is to find information that are relevant and appropriate. However, this can become difficult when queries are issued using ambiguous words. Rijsbergen first hypothesized a clustering approach for web pages wherein closely associated pages are treated as a semantic group with the same relevance to the query (Rijsbergen 1979). In this paper, we extend Rijsbergen’s cluster hypothesis to multimedia content such as images. Given a user query, the polysemy in the return image set is related to the many possible meanings of the query. We develop a method to cluster the polysemous images …

Presynaptic Learning And Memory With A Persistent Firing Neuron And A Habituating Synapse: A Model Of Short Term Persistent Habituation, Kiruthika Ramanathan, Ning Ning, Dhiviya Dhanasekar, Guoqi Li, Luping Shi, Prahlad Vadakkepat

Research Collection School Of Computing and Information Systems

Our paper explores the interaction of persistent firing axonal and presynaptic processes in the generation of short term memory for habituation. We first propose a model of a sensory neuron whose axon is able to switch between passive conduction and persistent firing states, thereby triggering short term retention to the stimulus. Then we propose a model of a habituating synapse and explore all nine of the behavioral characteristics of short term habituation in a two neuron circuit. We couple the persistent firing neuron to the habituation synapse and investigate the behavior of short term retention of habituating response. Simulations show …

The Breeding Biology Of The Northern Pygmy Owl: Do The Smallest Of The Small Have An Advantage?, John F. Deshler, Michael T. Murphy

Biology Faculty Publications and Presentations

We explored the breeding biology of the Northern Pygmy-Owl (Glaucidium gnoma) from 2007 to 2009 in a forested reserve in Portland, Oregon. Large body size is often assumed to give animals reproductive advantages, and we tested whether body size affected timing of breeding and examined variation in diet, breeding date, clutch size, and reproductive success to explore whether the presumed benefits of large body size are evident in this species. The average size of 13 clutches was 5.8, and nest success was high (92%); 22 successful nests fledged an average of 5.2 young. Dates of first laying varied …

Livestock Production And Wildlife-Based Tourism: Articulating Land-Use And Policy Conflicts In The Okavango Delta Ramsar Site In Botswana, Nelson Kgamanyane Sello

Graduate Theses and Dissertations

The management of common pool resources and policy conflicts between livestock and wildlife, two land-use types that take place in the same geo-spatial area has been a subject of debate among scholars for decades. This conflict in policies has engendered in communities which are beneficiaries attitudes that are either negative towards wildlife or favorable depending on the benefits they derive from them. This research therefore set out to understand the conflicts in the management of the Okavango Delta Ramsar Site (ODRS) where the OD is situated. The study used the grounded theory to collect and analyze the data in the …

The Effects Of Body Modifications And Dress On Perceived Professionalism And Competency Of A Female Model, Ashley Donell

Graduate Theses and Dissertations

Through the norms of a society, people must meet certain expectations in order to survive and provide for their family. For example, job expectations driven by human judgment on appearance creates a norm that society must follow. The question is how much appearance attributes such as dress and hair color effect others' interpretation of who a person may be? The purpose of this study was to evaluate the relationship between specific appearance and body modifications (dress and hair color) of a young female professional and perceived competency level as determined by a convenience sample of students in selected senior level …

The Impact Of Selected Forage Legumes On Cattle Performance, Forage Production, And Soil Quality, And Evaluation Of Legume Persistence Under Grazing, Bradley Edward Briggs

Graduate Theses and Dissertations

Interest in substituting legumes for N fertilizer in beef cattle grazing systems has recently increased with rising fertilizer prices. Legumes are well known for their ability to fix atmospheric N and decrease dependence on input of N fertilizer. However, there are still difficulties associated with legume utilization including establishment and persistence. Two experiments were conducted to evaluate legume performance under herbivory. The objective of Experiment 1 was to compare forage production and beef cattle gains from annual ryegrass [Lolium multiflorum (L.)] and bermudagrass [Cynodon dactylon (L.) Pers.] pastures fertilized with N or overseeded with legumes. Gelbvieh × Angus …

Flight Period And Species Composition Of Sirex (Hymenoptera: Siricidae) And Associated Deladenus (Nematoda: Neotylenchidae) Within Arkansas Pine Forests, Danielle Keeler

Graduate Theses and Dissertations

The European woodwasp, Sirex noctilio F. (Hymenoptera: Siricidae), which is a known destructive pest of pine in the southern hemisphere was recently discovered in the eastern United States. Before we can understand how S. noctilio may affect pine forests throughout the United States, we need a better understanding of native Sirex and the role they play in the ecosystem. The objectives of this research were to 1) determine species composition and flight period for native Sirex; 2) confirm presence of parasitic nematodes, Deladenus (Nematoda: Neotylenchidae), within adult Sirex; 3) investigate Deladenus parasitism rates; 4) verify the number of Deladenus species …

Groundwater Quality Assessment From Domestic Water Wells In The Fayetteville Shale Gas Play Area In Central Arkansas, Anna Marie Nottmeier

Graduate Theses and Dissertations

This study establishes a spatially distributed domestic water well groundwater quality data set, throughout the Fayetteville Shale Gas Play (FSGP) in central Arkansas. The data set facilitates characterization of the geology and groundwater quality across the study area, benefits residents who may have concerns about the potential impacts on their well water quality, and provides a groundwater quality basis to which complaints can be compared and resolved. The assessment included: research of the study area, site reconnaissance, water sampling and collection, interviews with owners of the property, analytical analysis, Quality Assurance and Quality Control, and groundwater data interpretation.

The study …

Guardians Of The Countryside Public Choice Theory And The Farm Lobby In The Eu's Common Agricultural Policy, Amy J. Costa

Graduate Program in International Studies Theses & Dissertations

Through various waves of reform, the European Union's Common Agricultural Policy remains inefficient without meeting all of its stated goals. The MacSherry reforms of 1992 resulted in the opposite of what leaders intended: higher spending and a growing bureaucracy. Later in the 1990s, Agenda 2000 slashed its originally planned cutbacks after farmers protested. Though support exists for reducing spending on agriculture, market intervention remains.

This thesis explores the problem through the use of public choice theory. -Consumers make too large a group to organize effectively or inform themselves about the issue, while farmers consist of a smaller group with well-defined …

The Place Of Fantasy In A Critical Political Economy: The Case Of Market Boundaries, Jason Glynos

Cardozo Law Review

No abstract provided.

Laughing Out Loud: Art, Culture, And Fantasy, Henrietta L. Moore

Cardozo Law Review

What makes art valuable? Why in times of crisis do people buy contemporary art? This Paper discusses whether or not investment in art can ever be seen as rational, and explores how the contemporary art market is expanding to include not just works of art, but art as a form of cultural practice. Audiences are no longer content simply to visit museums, galleries, and other cultural institutions. They want to participate, but why are art fairs, biennials, and museum events so popular? The contemporary art market has always been segmented, and reputation and display have been important motivators for rich …

The Relationship Between Suicide Ideation And Parasuicide: An Electrophysiological Investigation Using The Loudness Dependence Of Auditory Evoked Potential, Angelika Marsic

Dissertations

The loudness dependence of the auditory evoked potential (LDAEP) has been proposed as a promising valid and a non-invasive indicator of behaviorally relevant central 5-HT functioning. There is limited research on the utility of the LDAEP in discriminating individuals who engage in various degrees of suicidal behavior. The primary purpose of the present study was to examine if the LDAEP, as a measure of central serotonergic functioning, can be useful in distinguishing groups of individuals who: (a) solely experience suicidal ideation (SI group); (b) experience suicidal ideation and have engaged in deliberate self-harm acts (SH group); and (c) individuals with …

Empirical Identification Of Axis I And Axis Ii Symptom Subtypes Of Sex Addiction Using Lateny Profile Analysis, Maria Isabel Nino De Guzman

Dissertations

Sexual addiction is a disorder characterized by lack of control over sexual urges, pathological relationships and lack of intimacy, mood-altering experiences, and adverse consequences that tend to be disregarded by the person affected. Although not classified as a mental disorder in the Diagnostic Statistical Manual-IV-TR (DSM-IV-TR, APA, 2000) this distressful sexual manifestation is increasingly recognized as a clinical and public health problem. Previous studies suggest commonalities with addictive disorders and maladaptive personality traits. The purpose of the current study was to analyze personality configurations of individuals diagnosed as sex addicts and uncover specific subtypes or profiles associated to sexually addictive …

Arms Control And European Security, Stephen J. Blank Dr., Louis H. Jordan Col

Books, Monographs & Collaborative Studies

The following three papers comprise one of the panels from a conference on U.S.-Russia relations that SSI co-sponsored with the Carnegie Council at Pocantico, NY, from June 1-3, 2011: Carnegie Council's Program on “U.S. Global Engagement: A Two-Year Retrospective.” The papers offer three contrasting looks at one of the major issues in today’s arms control agenda, namely the future of the Conventional Forces in Europe Treaty (CFE). The three papers were written by leading experts in the field from the United States, the United Kingdom, and Russia and provide a revealing glimpse into the very different assessments that are being …

Ambient Habitat Noise And Vibration At The Georgia Aquarium, Peter M. Scheifele, Michael T. Johnson, Laura W. Kretschmer, John G. Clark, D. Kemper, G. Potty

Electrical and Computer Engineering Faculty Research and Publications

Underwater and in-air noise evaluations were completed in performance pool systems at Georgia Aquarium under normal operating conditions and with performance sound tracks playing. Ambient sound pressure levels at in-pool locations, with corresponding vibration measures from life support system (LSS) pumps, were measured in operating configurations, from shut down to full operation. Results indicate noise levels in the low frequency ranges below 100 Hz were the highest produced by the LSS relative to species hearing thresholds. The LSS had an acoustic impact of about 10 dB at frequencies up to 700 Hz, with a 20 dB re 1 μPa impact …

Comparing Single-Sex And Reformed Coeducation: A Constitutional Analysis, Nancy Chi Cantalupo

San Diego Law Review

One of the most enduring educational debates of the past three decades has dealt with the legality and advisability of sex-segregated education. This debate can often look confusing, given a large number of debaters and the diversity of their perspectives and agendas. More than this diversity, however, the debate is confusing because the debate has been structured as a contest between the "innovation" of sex-segregated education and status quo coeducation. Missing from the debate is a comparison between reformed coeducation and a single-sex alternative, a comparison that is markedly more useful in determining what ought to be done about the …

Adolescent Identity Versus The First Amendment: Sexuality And Speech Rights In The Public Schools, Steven J. Macias

San Diego Law Review

This Article examines the legal tensions that currently exist between public schools' attempts to protect gay students from bullying and harassment and antigay students' First Amendment rights to engage in allegedly harassing speech. First, it looks at the popular conception of the relationship between childhood or adolescence and sexuality by considering the political and legal fallout of the same-sex marriage debate. Then this Article turns to a conception of public schooling that would allow for the constitutionally permissible regulation of antigay-identity speech. Next, through the use of critical theory, this Article explains why First Amendment defenses to gay harassment have …

The Informational And Institutional Theories Of Off-Label Promotion, Miguel A. Lopez

San Diego Law Review

This Article contends that there are two distinct theories of the offense of off-label promotion—the informational theory and the institutional theory. One is concerned with controlling the flow of medical knowledge and the other is concerned with protecting regulatory legitimacy. Different kinds of evidence are key under each theory. I argue that although the Federal Food, Drug, and Cosmetic Act (FD&C Act) and its accompanying regulations emphasize the informational theory, federal prosecutors rely more heavily on the legal arguments that underpin the institutional theory of enforcement. A corollary to this contention is that the informational theory of off-label promotion does …

Automatic Compositional Verification Of Timed Systems, Shang-Wei Lin, Yang Liu, Jun Sun, Jin Song Dong, Étienne André

Research Collection School Of Computing and Information Systems

Specification and verification of real-time systems are important research topics with crucial applications; however, the so-called state space explosion problem often prevents model checking to be used in practice for large systems. In this work, we present a self-contained toolkit to analyze real-time systems specified using event-recording automata (ERAs), which supports system modeling, animated simulation, and fully automatic compositional verification based on learning techniques. Experimental results show that our tool outperforms the state-of-the-art timed model checker.