Digital Commons Network^™

Effect Of Direct-Fed Microbials And Monensin On In Vitro Rumen Fermentation, Sheryl Wingard

Theses and Dissertations--Animal and Food Sciences

The impact of supplying a mixed culture of lactate producing bacteria on in-vitro rumen fermentation of forage- (Experiment 1) and concentrate- (Experiment 2) based diets in the presence and absence of monensin was explored. In experiment 1, interactions between DFM and MON were absent (P>0.10) for gas production and fermentative end products. Gas production and fermentative end products were unaffected by DFM alone (P>0.10). Monensin decreased (P<0.001) CH₄ and NH₃ production, rate and total gas production, as well as total VFA concentration and molar proportions of acetate and butyrate. However, MON increased (P<0.001) proportions of propionate, valerate, isobutyrate and isovalerate. Independently, DFM and MON increased (P<0.001) end point pH. In experiment 2, DFM x MON interactions or tendencies (P=0.07, P<0.01, P<0.01) were present, DFM effects were abated by MON, for rate, total gas production and total VFA concentrations. Acetate:propionate ratio was decreased (P<0.01) with MON and was unaffected by DFM. Ammonia-N concentration was increased (P<0.01) by DFM and unaffected (P=0.75) by MON. Both DFM and MON treatment increased (P<0.01) ruminal pH levels. These studies suggest the effects of DFM and MON of in-vitro fermentation are …

Labor Versus Learning: Explaining The State-Wise Variation Of Child Labor In India, Priyam Saharia

Theses and Dissertations--Political Science

What explains the variation of child labor rates across Indian states? This dissertation explores why certain states in India, which are not necessarily the wealthiest, have been able to reduce child labor significantly in the past few decades, while child labor continues to increase at alarming rates in other states. Previous economic and cultural explanations, which focus on household-level poverty or the hierarchical social stratification of Indian society fail to adequately explain variation in child labor rates across Indian states. This research project explores how systematic regional differences in bureaucratic performance and patterns of civic engagement have influenced child labor …

Getting Jurors To Awesome, Cortney E. Lollar

Law Faculty Scholarly Articles

A 2011 American Bar Association report on the death penalty in Kentucky revealed that a shocking two-thirds of the 78 people sentenced to death in Kentucky since reinstatement of the death penalty in 1976 have had their sentences overturned on appeal. Kentucky’s reversal rate is more than twice the national average, with a 31% reversal rate in capital cases and almost four times the 17% national reversal rate in all other case types. With a sentence as irreversible as death, troubling does not begin to describe the depth of concern many experience when viewing such a startling statistic.

A closer …

Keeping Up With New Legal Titles, Tina M. Brooks

Law Faculty Scholarly Articles

In this book review, Tina M. Brooks discusses The Puzzle of Unanimity: Consensus on the United States Supreme Court by Pamela C. Corley, Amy Steigerwalt, and Artemus Ward.

Solving Charity Failures, Brian L. Frye

Law Faculty Scholarly Articles

“Crowdfunding” is a way of using the Internet to raise money by asking the public to contribute to a project. In the past, asking a large number of people to contribute small amounts of money to a project was expensive and inefficient for most organizations and individuals. By greatly reducing transaction costs, crowdfunding enables anyone to inexpensively and efficiently seek small contributions to a project. While crowdfunding is a new model of fundraising, it has already transformed funding for the arts. For example, the crowdfunding platform Kickstarter distributed more than forty million dollars to the creators of almost seventy-five hundred …

An Exploration Of Empowerment, Sexual Violence, And Hiv Among Indian Women, Brigid Kyung-Hwa Cecil

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Empowerment plays a major role in sexual violence and HIV among women worldwide. Findings on empowerment in relation to domestic violence or HIV are scarce and are conflicting. The purpose of this study was to examine the relationship between empowerment and HIV status by means of sexual violence, and to compare this relationship between previously married women (N = 2,658) and currently married women (N = 37,539) living in India. The Baron and Kenny mediated regression model was used, involving simple logistic and multiple logistic regression, drawing from the National Family Health Survey 2005-2006 (NFHS-3). Sexual violence was not found …

Considering The Human And Nonhuman In Literary Studies: Notes For A Biographic Network Approach For The Study Of Literary Objects, Edward L. Bullock

Theses and Dissertations--English

In recent years critical projects spanning philosophy, the social sciences, science studies, and nearly everywhere that has employed the term ecology have engaged in thinking humans and non-humans together as collectively producing outcomes, where objects do work beyond how humans perceive or make use of them. Taking Zelda Fitzgerald’s Save Me the Waltz as its focus, this thesis explores how this reorientation might contribute to literary studies and to literary criticism more specifically. The thesis considers a notion that novels constitute objects with biographies running “against” the biographic material of their authors, mobilizes actor network theory as a manner of …

Development Of A Moldable Composite Bone Graft Substitute Releasing Antibacterial And Osteogenic Drugs, Matthew E. Brown

Theses and Dissertations--Biomedical Engineering

Large infected bone defects (IBD) are very complicated to treat due to their high variability; they often require multiple procedures. Bone autografts are the gold standard for treatment but have several drawbacks, such as a need for a second surgery site, limited grafting material, and donor site morbidity. The objective of this research was to develop a moldable synthetic bone grafting material capable of releasing both antimicrobial and osteogenic drugs over a clinically relevant time course for the treatment of IBDs. Current treatment methods for large IBDs require two separate procedures to treat the bone defect and the infection.

This …

Stabilization Of Extended Diffuse Optical Spectroscopy Measurements On In Vivo Human Skeletal Muscle During Dynamic Exercise, Brad A. Henry

Theses and Dissertations--Biomedical Engineering

This research investigates various applications of diffuse correlation spectroscopy (DCS) on in-vivo human muscle tissue, both at rest and during dynamic exercise. Previously suspected muscle tissue relative blood flow (rBF) baseline shift during extended measurement with DCS and DCS-Near infrared spectroscopy (NIRS) hybrid optical systems are verified, quantified, and resolved by redesign of optical probe and alteration in optical probe attachment methodology during 40 minute supine bed rest baseline measurements. We then translate previously developed occlusion techniques, whereby rBF and relative oxygen consumption rV̇O₂ are calibrated to initial resting absolute values by use of a venous occlusion (VO) and …

Calibration Of Non-Nuclear Devices For Construction Quality Control Of Compacted Soils, Joshua E. R. Wells

Theses and Dissertations--Civil Engineering

Inadequate compaction of a soil subgrade can lead to detrimental outcomes that are not only costly but dangerous to the general public. To avoid this, quality control (QC) devices such as the nuclear density gauge (NDG) are currently being used to monitor the compaction and moisture content of soil subgrades. However, regulatory concerns associated with the NDG have encouraged federal and state agencies, as well as the heavy civil construction industry to consider non-nuclear devices for QC testing of compacted soils. One such non-nuclear device is the Soil Density Gauge (SDG), which utilizes electromagnetic wave propagation to obtain soil properties …

Development Of Cementitious Materials For Adhesion Type Applications Comprising Calcium Sulfoaluminate (Csa) Cement And Latex Polymer, Joshua V. Brien

Theses and Dissertations--Civil Engineering

The objective of this research was to develop high performing polymer modified calcium sulfoaluminate (CSA) cement materials for use in applications requiring superior adhesion characteristics. Little information is available describing interactions of CSA cement containing minor phase tri-calcium aluminate (C₃A) with commonly used admixtures. Given the scarcity of information, a basic approach for developing cementitious materials was followed. The basic approach consisted of four tasks: cement design, admixture design, polymer design and testing developed materials. The iterative, time consuming process is necessary for understanding the influence of specific constituent components on overall system behavior. Results from the cement …

Precise Control Of Carbon Nanotube Membrane Structure For Enzyme Mimetic Catalysis, Nicholas W. Linck

Theses and Dissertations--Chemical and Materials Engineering

The ability to fabricate a charge-driven water pump is a crucial step toward mimicking the catalytic ability of natural enzyme systems. The first step towards making this water pump a reality is the ability to make a carbon nanotube (CNT) membrane with uniform, 0.8 nm pore diameter. Proposed in this work is a method for synthesizing these carbon nanotubes via VPI-5 zeolite templated, transition metal catalyzed pyrolysis. Using a membrane composed of these CNTs, it is possible to get water molecules to flow single file at a high flow rate, and to orient them in such a way that would …

Clogging Of Fine Sediment Within Gravel Substrates: Macro-Analysis And Momentum-Impulse Model, Davis Huston

Theses and Dissertations--Civil Engineering

An understanding of the clogging of fine sediments within gravel substrates is advanced through the use of dimensional analysis and macro-analysis of clogging experiments in hydraulic flumes. Dimensional analysis is used to suggest that the dimensionless clogging depth can be collapsed using the original and adjusted bed-to-grain ratios, substrate porosity, roughness Reynolds number, and Peclet number. Macro-analysis followed by statistical analysis of 146 experimental test results of fine sediment deposition in gravel substrates suggests that the dimensionless clogging depth can be collapsed using the substrate porosity and roughness Reynolds number reflecting the processes of gravity settling and turbulence induced fluid …

Rent: Same-Sex Prostitution In Modern Britain, 1885-1957, Jonathan Coleman

Theses and Dissertations--History

Rent: Same-Sex Prostitution in Modern Britain, 1885-1957 chronicles the concept of “rent boys” and the men who purchased their services. This dissertation demonstrates how queer identity in Britain, until contemporary times, was largely regulated by class, in which middle-and-upper-class queer men often perceived of working-class bodies as fetishized consumer goods. The “rent boy” was an upper-class queer fantasy, and working-class men sometimes used this fantasy for their own agenda while others intentionally dismantled the “rent boy” trope, refusing to submit to upper-class expectations. This work also explains how the “rent boy” fantasy was eventually relegated to the periphery of queer …

A Characterization Of Serre Classes Of Reflexive Modules Over A Complete Local Noetherian Ring, Casey R. Monday

Theses and Dissertations--Mathematics

Serre classes of modules over a ring R are important because they describe relationships between certain classes of modules and sets of ideals of R. We characterize the Serre classes of three different types of modules. First we characterize all Serre classes of noetherian modules over a commutative noetherian ring. By relating noetherian modules to artinian modules via Matlis duality, we characterize the Serre classes of artinian modules. A module M is reflexive with respect to E if the natural evaluation map from M to its bidual is an isomorphism. When R is complete local and noetherian, take E as …

Cold Warriors In The Sunbelt: Southern Baptists And The Cold War, 1947-1989, Matthew J. Hall

Theses and Dissertations--History

Cold Warriors in the Sunbelt studies the ways in which the Cold War experience shaped the attitudes, values, and beliefs of white evangelicals in the South. It argues that for Southern Baptists in particular—the region’s most dominant religious majority—the Cold War provided a cohesive and unifying fabric that informed the world views Southern Baptists constructed, shaping how they interpreted everything from global communism, the black freedom movement, the Vietnam War, and controversies regarding the family and gender. This dissertation further contends that the Cold War experience, and the formative influence it had over several decades, laid the groundwork for the …

Appalshop Genesis: Appalachians Speaking For Themselves In The 1970s And 80s, Catherine N. Herdman

Theses and Dissertations--History

Appalshop, a multi-media and arts organization in Whitesburg, Kentucky emerged in 1969 at the crossroads of several different developments. It started as a War on Poverty program and its history exhibits the contradictory ideologies that fueled that effort and the political changes that forestalled it. The production company began in the midst of technological advances in media and is an early example of the democratization of technology and the potential of portable video equipment in affecting social change. Most importantly, its genesis is located within the context of a renewed interest in Appalachian history and culture and the related issues …

Black Power In River City: African American Community Activism In Louisville, Kentucky, 1967-1970, Zack G. Hardin

Theses and Dissertations--History

The impact of Black Power rhetoric and ideology in Louisville, Kentucky in 1967-1970 is explored. The role of Black Power in shaping the discourse of Louisville’s black counter-public and civil rights counter-public is analyzed in the context of the 1967 open housing demonstrations, the May, 1968 riot, and the trial of the ‘Black Six’. Black Power played a vital role in community organizing and in displays of black national and cultural pride. It actively challenged the city’s mystique of Southern white paternalism embraced by the mayoral administration of Kenneth Schmied. Despite that administrations allegations, Black power rhetoric in the West …

Homological Algebra With Filtered Modules, Raymond Edward Kremer

Theses and Dissertations--Mathematics

Classical homological algebra is done in a category of modules beginning with the study of projective and injective modules. This dissertation investigates analogous notions of projectivity and injectivity in a category of filtered modules. This category is similar to one studied by Sjödin, Nǎstǎsescu, and Van Oystaeyen. In particular, projective and injective objects with respect to the restricted class of strict morphisms are defined and characterized. Additionally, an analogue to the injective envelope is discussed with examples showing how this differs from the usual notion of an injective envelope.

Analysis Of The Role Of Two Autophagy Pathway Related Genes, Becn1 And Tsc1, In Murine Mammary Gland Development And Differentiation, Amber N. Hale

Theses and Dissertations--Biology

The mammary gland is a dynamic organ that undergoes the majority of its development in the postnatal period in four stages; mature virgin, pregnancy, lactation, and involution. Every stage relies on tightly regulated cellular proliferation, programmed cell death, and tissue remodeling mechanisms. Misregulation of autophagy, an intracellular catabolic process to maintain energy stores, has long been associated with mammary tumorigenesis and other pathologies. We hypothesize that appropriate regulation and execution of autophagy are necessary for proper development of the mammary ductal tree and maintenance of the secretory epithelia during late pregnancy and lactation. To test this hypothesis we examined the …

Paleoseismic And Structural Characterization Of The Hines Creek Fault: Denali National Park And Preserve, Alaska, Sara E. Federschmidt

Theses and Dissertations--Earth and Environmental Sciences

The Hines Creek fault (HCF) is a Holocene-active fault in central Alaska. Its trace has been mapped several times, but data on the history of fault displacement is scarce. As a major crustal-scale geologic boundary with uncertain Quaternary tectonic activity, it is a priority for more to be known about the activity of this fault to better understand the hazards it presents to the Denali National Park and Preserve and Alaskan infrastructure. This study characterizes the late Quaternary activity of the HCF through surficial geologic mapping and paleoseismic investigations. Mapping revealed a very steep (~84°-88° apparent dip), north dipping fault …

Sacred Social Spaces: Finding Community And Negotiating Identity For American-Born Converts To Islam, Sarah A. Soliman

Theses and Dissertations--Geography

This thesis examines the religious experiences of American-born converts to Islam. The social nature of religion has been long ignored in research on the lives of religious people. A review of research on Muslim identities reveals an emphasis on immigrants, women, and youth in the British context. However, there is little to no research on the unique constituency of converts to Islam and the importance of social aspects of faith for establishing a sustainable and transformative practice of Islam. This research closes this gap through a case study of the religious experiences of American-born converts to Islam.

Through in-depth interviews …

Buying A Colonial Dream: The Role Of Lifestyle Migrants In The Gentrification Of The Historic Center Of Granada, Nicaragua, Abigail Foulds

Theses and Dissertations--Geography

This dissertation aims to expand our understanding of how lifestyle migrants from the Global North impact the urban space of a Global South city, particularly the built environment. In order to situate the questions posed in this dissertation, I focus on how lifestyle migrants from the Global North and their foreign capital transform the city of Granada, Nicaragua through processes of gentrification, and how the social and economic climate of the city and its residents are impacted. This research allows for empirically informed theoretical critiques to be made about the economic and social implications of the globalization of gentrification resulting …

Life On The Big Slab: Identity And Mobility In The United States Trucking Industry, Valerie J. Keathley

Theses and Dissertations--Geography

Many changes have occurred in the United States trucking industry over the last thirty years. This study examines the effects of these changes by looking at three related themes: life on the road and life at home, body image and bodily health, and the experiences of women and sexual minorities in the industry. This research is based on a discourse analysis of interviews conducted with truck drivers and trucking industry leaders.

Most truck drivers say that they value the independent nature of their workplace. Yet the independence that is a part of the trucker mystique is challenged by increased surveillance …

Planning And Protest In Memphis: The Limits And Possibilities Of Participatory Discourse, Andrea Craft

Theses and Dissertations--Geography

Recent discussions of participatory urban planning have focused largely on municipal-led initiatives for collaborative resident engagement as an increasingly visible trend of neoliberal urban governance. Critical observers have noted the alliance between local government and business interests, and their capacities to manage, co-opt, and depoliticize diverse community-based efforts, and to marginalize dissent, through public-private partnerships, often facilitated by private consultants. Actual practices of participation demonstrate a variety of alternative meanings. This case study of a community-based planning initiative for public housing redevelopment in Memphis, TN challenges and complicates these narratives. The Memphis Housing Authority invited a local community organization to …

Effectiveness Of A Farm Field Trip, Bonnie S. Sigmon

Theses and Dissertations--Community & Leadership Development

The annual Sigmon Farm Tour was started in 1992 as an agricultural education program where students could experience being on a farm with the goal of increasing the agricultural literacy levels of the participants. Every year the entire 4th grade student population of Rockcastle County spends the day touring the farm and participating in experiential mini lessons given by the cooperating farm service and health agencies. The program has continued for 20+ years without an evaluation as to whether it is achieving its objectives. This evaluation will also exhibit the programs strengths and weakness so it can continue to improve. …

Conceptualizing Citizen Journalism: Definitions And Roles, Kelli A. Long

Theses and Dissertations--Community & Leadership Development

Through in-depth interviews with 12 regular contributors to the Lexington-Herald Leader’s website, www.Kentucky.com, this study attempts to examine how online citizen journalists view the definitions of citizen and professional journalism, as compared to Singer’s three dimensions of professionalism (i.e., cognitive, normative, and evaluative dimensions) as well as their perceived role conceptions of professional and citizen journalists, using Weaver and Wilhoit’s four roles of journalists. Analyses reveal that the main difference in the definitions of the two types of journalists revolved around the cognitive dimension, specifically the education and training that professionals receive. The role conceptions of professional and citizen journalists …

Family Influences On The Educational Aspirations Of Female Youth In Appalachia, Leah K. Vance

Theses and Dissertations--Community & Leadership Development

Family support, both financial and social, can impact the educational aspirations of youth. Studies have shown gender also plays a role in those educational aspirations. While there has been some research done on the educational aspirations of youth in Appalachia, the research on female youth Appalachia is less explored.

This study looks at the educational aspirations of female youth in Appalachia by surveying a group of young women who belong to the Robinson Scholars at the University of Kentucky. Participants completed a brief, one time survey answering questions about the types of social support received and the providers of that …

Sequential Co-Culture Of Anaerobic Bacteria On Switchgrass In A Continuous Flow-Through Reactor For Biofuel Production, Noelia M. Elia

Theses and Dissertations--Biosystems and Agricultural Engineering

Solid substrate cultivation (SSC) using lignocellulosic non-food feedstock, such as switchgrass, is an alternative for advanced biofuel production. Acetone-Butanol-Ethanol (ABE) fermentation in two stages using a sequential culture of microorganisms from the class Clostridia is an approach proposed to increase the butanol production.

The goal was to test the efficacy of a sequential culture on high solid substrate cultivation in batch and continuous cultivation, and to evaluate conditions to optimize butanol production using switchgrass as substrate.

Initial batch experiments were used to determine particle size effect, choice of solvent producer and pretreatment evaluation: The effect of particle size on gas …

Developing A Method For Measuring "Working Out Loud", Dennis E. Pearce

Theses and Dissertations--Finance and Quantitative Methods

Enterprise social network software platforms (ESNs) are increasingly being deployed in firms across almost every industry as a means of fostering employee collaboration. Although benefits in increased productivity, innovation, and employee engagement are highly touted, there is a high failure rate of these deployments. This often occurs because (1) there is a misapplied focus on technology adoption rather than adoption of the employee behaviors that are ultimately required to obtain those benefits, and (2) it is unclear what those behaviors are and how to measure them.

“Working Out Loud” is one possible framework for understanding and measuring the behaviors necessary …