Digital Commons Network^™

A Classification Of Lower Paleozoic Carbonate-Bearing Rocks For Geotechnical Applications, Bethany L. Overfield

University of Kentucky Master's Theses

An empirically-based classification of lower Paleozoic carbonate-bearing rocks was created for field-based geotechnical applications. Geotechnical parameters were subsequently correlated to that classification. Seven hundred seventy-seven samples were used as the basis for the classification. Thirteen categories based on visual and tactile properties and a hydrochloric acid test were created. Samples were from central, north-central, and south-central Kentucky and represented the majority of Ordovician exposures in the state, and some Mississippian exposures. Few Silurian and Devonian units were included in the sample set. Geotechnical parameters, including density as well as elastic constants (shear and compression wave velocities, Poisson’s ratio, Young’s modulus, …

A Reliability-Based Routing Protocol For Vehicular Ad-Hoc Networks, James Bernsen

University of Kentucky Master's Theses

Vehicular Ad hoc NETworks (VANETs), an emerging technology, would allow vehicles to form a self-organized network without the aid of a permanent infrastructure. As a prerequisite to communication in VANETs, an efficient route between communicating nodes in the network must be established, and the routing protocol must adapt to the rapidly changing topology of vehicles in motion. This is one of the goals of VANET routing protocols. In this thesis, we present an efficient routing protocol for VANETs, called the Reliable Inter-VEhicular Routing (RIVER) protocol. RIVER utilizes an undirected graph that represents the surrounding street layout where the vertices of …

Investigation Of The Toxicity And Efflux Of Polychlorinated Biphenyls And Hydroxylated Polychlorinated Biphenyls In Escherichia Coli, Shen Geng

University of Kentucky Master's Theses

Polychlorinated biphenyls (PCBs) are persistent organic pollutants. Due to their properties, PCBs accumulate in the food-chain and post a threat to the health of human beings and wildlife. Hydroxylated PCBs (OH-PCBs) are oxidative metabolites of PCBs and are more hydrophilic than their parent PCBs. One of the best approaches to break down these contaminants is through bioremediation, which is an environmental friendly process that uses microorganisms to restore natural environment.

Towards this goal, we have investigated the toxicity and accumulation of PCBs and OH-PCBs in a Gram-negative bacterium, Escherichia coli. We have also determined the role played by a …

Healing Healthcare Design For Adolescent Patients: Promoting Holistic Quality Of Life, Eun Young Kim

University of Kentucky Master's Theses

This study examined environmental preferences for adolescent patients in hospital patient rooms and activity rooms to determine age-appropriate healing design elements. The health-related quality of life (HRQOL) concept was adapted to this study as a theoretical framework. In order to develop an age-appropriate healing design, a comprehensive understanding of adolescents‘ cognitive developmental stages and their expectations in hospital settings needs to be recognized. Thirty-two adolescent outpatients aged 15 to 18 participated in the survey. Data collection consisted of three different instruments: Emotional state survey with demographics, Photo analysis with semantic differentials, and environmental preference value survey. Comfort, sadness and stress …

Perceptions Of Support, Likelihood Of Retention, And Differences Between Places Of Origin Among First-Generation College Students, Teresa Radomski

University of Kentucky Master's Theses

First-generation college students are less likely to attend and complete college than their peers whose parents have completed college. Among the reasons cited for this disparity is lack of parental familiarity of the college admissions process and financial aid opportunities. First-generation youth wishing to pursue a college education must rely on others for this knowledge. This study examines first-generation college students' perceptions of support and whether their places of origin have any bearing on their future plans. The study examines interviews with participants through the lens of Tinto's (1993) model of student departure to examine whether their responses, and whether …

Cultivating Miracle Perceptions: Cultivation Theory And Medical Dramas, Rachael A. Record

University of Kentucky Master's Theses

This thesis reports the results of a study designed to investigate the influence of exposure to televised medical dramas on perceptions of medical miracles. Four hundred and eighty-one college students participated in a survey in which they responded to different questions about their medical drama viewership and their different beliefs with regard to medical miracles. Results found that heavy medical drama viewers perceived belief in medical miracles to be less normal than non-viewers. Similarly, heavy viewers perceived medical miracles to occur less often than non-viewers. Interestingly, heavy viewers perceived medical dramas to be less credible than non-viewers. In addition, this …

Deaf Or Hearing: A Hearing Impaired Individual’S Navigation Between Two Worlds, Brittany Nicole Lash

University of Kentucky Master's Theses

identity play an important role in how they communicate and interact with other individuals. One group in which identity construction and navigation is a difficult process is the hearing impaired population. In an effort to understand how these individuals construct their identity and navigate their hearing impairment, this study utilizes Communication Theory of Identity. Through the use of interactive interviews, the researcher was able to examine how 11 participants manage their identity as hearing impaired individuals. The interviews provided insight into the four layers of identity proposed by CTI – personal, relational, enacted, and communal – in the hearing impaired …

Teacher Disclosure: Developing Privacy Rules, Managing Boundaries And Building Relationships, Renee Monique Kaufmann

University of Kentucky Master's Theses

The roles and responsibilities of middle school teachers are never ending. From instructing students on state-mandated curriculum to the enrichment of character and inquiry, teachers make daily decisions about how and what to disclose to their students. The current study reexamines Hosek and Thompson’s (2009) study on how teachers develop privacy rules and coordinate boundaries using Petronio’s Communication Privacy Management as the theoretical framework. Studying middle school teachers, in lieu of college instructors, allows for a better understanding of how privacy rules and boundaries are constructed and used within the middle school. This provides a better understanding of the important …

“What’S Happening” @Twitter: A Uses And Gratifications Approach, Corey Leigh Ballard

University of Kentucky Master's Theses

The uses and gratifications approach places power in the hands of the audience and is a helpful perspective when trying to understand media usage, exposure, and effects. However, while the uses and gratifications approach has been applied regularly to traditional media, research explaining why people use new social media networks as well as the gratifications they obtain from them is scarce at best. This thesis provides a comprehensive overview of the uses and gratifications approach as well as the current literature about social media networks. An argument is built within the thesis to study Twitter as one social media network …

Modeling And Optimization To Evaluate Sustainability Performance Of Customizable Product Service Systems, Ken Harsha Tilakaratne Wijekoon

University of Kentucky Master's Theses

The aim of this thesis is to present a new methodology to evaluate and optimize sustainability of customizable product-service systems while ensuring economic, environmental and societal constraints are also satisfied. Activities across the total product lifecycle are considered to develop a model that evaluates closed-loop flow, while being monitored through the growth, maturity and decline stages of the product to provide a comprehensive analysis. A novel method to evaluate the customer satisfaction is also presented. The research considers a modular product where customization can be achieved by selecting from alternatives while ensuring the compatibility between these alternatives. A manufacturer will …

Developing A Time And Motion Study For A Lean Healthcare Environment, Michael Winston Patton Jr.

University of Kentucky Master's Theses

This thesis outlines the development of a standard methodology for performing a time and motion study in a lean healthcare environment. Time and motion studies have been used in healthcare environments in the past, however they have nearly all been exclusive to a particular healthcare enterprise. To develop the time and motion study methodology, a study was designed to examine how resident doctors spend their time. This study was performed in response to coming changes in the work hours for all residents. Once the methodology was developed, trial observations were conducted. The data from these observations was analyzed to determine …

Defying The Modernist Canon: Mikhail Larionov’S Artistic Experience Beyond The Canvas, Ella Hans

University of Kentucky Master's Theses

In the contemporary art-historical vision, Mikhail Larionov is renowned as the author and the main figure in the polemical discourse of Neoprimitivism and the inventor of the Rayonism style. These aspects, although crucial to his career, are far from exhausting the artist’s legacy. During his most industrious period, from 1910 to 1915, he was equally, if not more, engaged in the development of new forms of art than in the practice of painting; in fact, the conventional cornerstone of the high art in the era of Modernism – a painting – lost its central position and receded to the status …

Local Evaluation For The Cumberland Gap Tunnel Regional Its Deployment, John Crossfield, Len O'Connell, Candice Wallace, Jennifer Walton

Kentucky Transportation Center Research Report

This report is the local evaluation of an Intelligent Transportation System deployment for the Cumberland Gap Tunnel and U.S. 25E corridor in Tennessee and Kentucky. This report examines the planning for the deployment and the systems and components used to achieve the goals of the deployment. The goals and expectations of the ITS deployment were to provide updated travel information to drivers in the vicinity of the Cumberland Gap Tunnel and along the U.S. 25E corridor; to improve the integration of the tunnel systems; to improve incident detection, verification, and response times along the U.S. 25E corridor; and to develop, …

A Model Of The Information Seeking And Decision Making Of Online Coin Buyers, Donald O. Case

Information Science Faculty Publications

Introduction. The Everyday Life Information Seeking approach suggests that much information behaviour takes place in non-work settings, for example in the pursuit of leisure activities such as hobbies. This study focuses on a community of collectors to examine how they gather information to decide whether to purchase an item for their collection when the target item has an ambiguous or deficient description.

Method. Manual scanning of eBay and other online discussion board for coin buyers led to 187 postings indicating an attempt to reach a purchase decision, or to authenticate a purchased coin, through solicitation or posting of advice.

Analysis. …

Sustainable Practices And Related Performance Measures At State Highway Agencies, Lenahan O’Connell

Kentucky Transportation Center Research Report

This report identifies seven ways in which an SHA can harm the environment: (1) excessive consumption of virgin materials; (2) unnecessary levels or amounts of storm water runoff; (3) release of environmental contaminants by SHA employees and contractors; (4) inadequate environmental training of employees and contractors; (5) wasteful use of energy by SHA employees and contractors; (6) the promotion of excessive driving by the public and concomitant release of green house gases; and (7) inadequate oversight mechanisms and procedures to prevent unsustainable practices. The report then identifies the sustainable practices and related performance measures SHAs can use to prevent or …

System And Technique For Retrieving Depth Information About A Surface By Projecting A Composite Image Of Modulated Light Patterns, Laurence G. Hassebrook, Daniel L. Lau, Chun Guan

Electrical and Computer Engineering Faculty Patents

A technique, associated system and program code, for retrieving depth information about at least one surface of an object, such as an anatomical feature. Core features include: projecting a composite image comprising a plurality of modulated structured light patterns, at the anatomical feature; capturing an image reflected from the surface; and recovering pattern information from the reflected image, for each of the modulated structured light patterns. Pattern information is preferably recovered for each modulated structured light pattern used to create the composite, by performing a demodulation of the reflected image. Reconstruction of the surface can be accomplished by using depth …

Physiological Recordings Of High And Low Output Nmjs On The Crayfish Leg Extensor Muscle, Wenhui Wu, Robin L. Cooper

Biology Faculty Publications

We explain in detail how to expose and conduct electrophysiological recordings of synaptic responses for high (phasic) and low (tonic) output motor neurons innervating the extensor muscle in the walking leg of a crayfish. Distinct differences are present in the physiology and morphology of the phasic and tonic nerve terminals. The tonic axon contains many more mitochondria, enabling it to take a vital stain more intensely than the phasic axon. The tonic terminals have varicosities, and the phasic terminal is filiform. The tonic terminals are low in synaptic efficacy but show dramatic facilitated responses. In contrast, the phasic terminals are …

Networks Of European Cities In Worlds Of Global Economic And Environmental Change, Stanley D. Brunn, Lomme Devriendt, Andrew Boulton, Ben Derudder, Frank Witlox

Geography Faculty Publications

Geographers have a long tradition of classifying cities using a number of criteria. Population size, industrial production, capital city functions, airline connections, sites of sporting events and major headquarters and banks are among them. While these studies are useful in looking at cities in an economy and population at a given point of time, they are less useful in assessing rapidly occurring changes within a regional or global system. Our research represents a new approach to classify cities and urban systems; we use the volume and networks/linkages or flows associated with electronic Information or “Knowledge worlds.” We argue that in …

Evaluation Of The Locations Of Kentucky’S Traffic Crash Data, Eric R. Green, Kenneth R. Agent

Kentucky Transportation Center Research Report

This research study evaluated the current accuracy of the location information provided in Kentucky‟s crash data. Since the year 2000, the Kentucky Open Portal System‟s (KYOPS) eCrash form has included latitude and longitude data as well as the more traditional County, Route and Milepoint data (CRMP). The Kentucky Transportation Center conducted a research report in 2004 that evaluated the effectiveness of using latitude and longitude, or GPS, as a means to locate traffic crash data.1 This previous study found that both the CRMP and GPS location data had substantial problems resulting in the location data only being accurate about 50 …

Kennedy Interchange Crash Study, Eric R. Green, Kenneth R. Agent, Jerry G. Pigman

Kentucky Transportation Center Research Report

The Louisville-Southern Indiana Ohio River Bridges project is a construction and reconstruction project being undertaken to address long-term transportation needs in the Louisville metropolitan area. Partial justification for construction of the new downtown bridge and reconstruction of the Kennedy interchange is the existing safety issues and the potential for improved safety. Crash rates for the interchange area have not been fully documented to establish the existing level of safety and degree of the problem relative to state and national statistics. The objective of this study was to analyze and evaluate crash data for the Kennedy Interchange area of Louisville and …

Retention And Loss Of Rna Interference Pathways In Trypanosomatid Protozoans, Lon-Fye Lye, Katherine Owens, Huafang Shi, Silvane M. F. Murta, Ana Carolina Vieira, Salvatore J. Turco, Christian Tschudi, Elisabetta Ullu, Stephen M. Beverley

Molecular and Cellular Biochemistry Faculty Publications

RNA interference (RNAi) pathways are widespread in metaozoans but the genes required show variable occurrence or activity in eukaryotic microbes, including many pathogens. While some Leishmania lack RNAi activity and Argonaute or Dicer genes, we show that Leishmania braziliensis and other species within the Leishmania subgenus Viannia elaborate active RNAi machinery. Strong attenuation of expression from a variety of reporter and endogenous genes was seen. As expected, RNAi knockdowns of the sole Argonaute gene implicated this protein in RNAi. The potential for functional genetics was established by testing RNAi knockdown lines lacking the paraflagellar rod, a key component of the …

Compositions And Methods For Inhibiting Drusen Complement Components C3a And C5a For The Treatment Of Age-Related Macular Degeneration, Jayakrishna Ambati

Ophthalmology and Visual Science Faculty Patents

Activated C3 (C3a) and its receptor (C3aR) and activated C5 (C5a) and its receptor (C5aR) have been shown to induce vascular endothelial growth factor (VEGF) expression in vitro and in vivo. Compositions and methods for inhibiting C3a, C3aR, C5a and C5aR for the treatment and/or prevention of neovascular disease are provided. Also provided are Novel therapeutic targets and diagnostic markers for choroidal neovascularization.

Restaurant Sales: Grocery, Wholesale & Foodservice Sales, Timothy A. Woods, Miranda Hileman

Agricultural Economics Presentations

No abstract provided.

Global Ky (Fall 2010), University Of Kentucky International Center

Global Kentucky

No abstract provided.

Managing Faculty And Student Expectations At The Circulation Desk, Jennifer A. Bartlett

Library Presentations

Work at main circulation desks in large academic and public libraries involves the ability to manage increasing service demands from patrons, colleagues, and the organization's administration. The perception of circulation as a catch-all department, handling responsibilities that do not fit neatly into other areas, can make this work feel like "emptying the litter pan." This presentation discusses the importance of circulation as the professional face of the library and its centrality to effective and efficient library service in the face of challenges involving mission, perception, and funding.

Alterations In Multiple Measures Of White Matter Integrity In Normal Women At High Risk For Alzheimer's Disease, Brian T. Gold, David K. Powell, Anders H. Andersen, Charles D. Smith

Neuroscience Faculty Publications

There is evidence that disruption of white matter (WM) microstructure is an early event in the course of Alzheimer's disease (AD). However, the neurobiological bases of WM microstructural declines in presymptomatic AD are unknown. In the present study we address this issue using a multimodal imaging approach to the study of presymptomatic AD. Participants were 37 high-risk (both family history of dementia and one or more APOE4 alleles) women and 20 low-risk (neither family history nor APOE4) women. Groups were matched for age, education, neuropsychological performance, and vascular factors that could affect white matter. Whole-brain analyses of diffusion tensor imaging …

Bed Bug Deterrence, Kenneth F. Haynes, Mark H. Goodman, Michael F. Potter

Entomology Faculty Publications

A recent study in BMC Biology has determined that the immature stage of the bed bug (the nymph) signals its reproductive status to adult males using pheromones and thus avoids the trauma associated with copulation in this species. The success of this nymphal strategy of deterrence is instructive. Against the background of increasing problems with bed bugs, this research raises the question whether pheromones might be used to control them.

See research article: http://www.biomedcentral.com/1741-7007/8/121.

Public Health Systems And Services Research: Bridging The Practice-Research Gap., F. Douglas Scutchfield, Cynthia D. Lamberth

Preventive Medicine and Environmental Health Faculty Publications

Public health practitioners understand the principles of evidence-based practice

and the science that should drive their efforts to improve the community’s

health through the implementation of science-driven public health programs.

However, the translation of research to practice still has numerous barriers.

This commentary provides suggestions to strengthen the link between research

and practice.

Training For Equipment Maintenance And Repair, Sam Powdrill, Ismael Cordero, V Srinivasan

Health and Clinical Sciences Faculty Publications

In order to ensure the that equipment functions well, both equipment users and the equipment maintenance and repair team must be trained. Users must be trained in basic care and maintenance of equipment, and the equipment team must be trained to undertake repairs and more complex maintenance tasks.

Adult Development: Preparing Adults For The Youth Development Experience, Ken Jones

Community and Leadership Development

Adult development is a strategy to help adults acquire the skills to build stronger intergenerational relationships, with emphasis on adults partnering effectively with youth in the community.