Digital Commons Network^™

Bacteria Foraging: A New Tool For Simultaneous Robust Design Of Upfc Controllers, M. Tripathy, S. Mishra, Ganesh K. Venayagamoorthy

Electrical and Computer Engineering Faculty Research & Creative Works

Robust tuning of lead-lag type controller used for regulating FACTS control signal to improve dynamic stability has been an area of interest in research. This paper presents a new approach based on the foraging behavior of E. coli Bacteria in the human intestine, to optimize simultaneously three constants each of four lead-lag type UPFC controller present in a Single Machine Infinite Bus (SMIB) power system. For the tuning purpose, a multi-objective cost function is formulated that accounts for damping factors and ratios of various system modes for a wide range of operating conditions. Robustness of the proposed tuning method is …

Cultural Resilience--A Currency Of Social Capital: Counteracting Student Marginalization In Two Urban--Suburban High Schools, Marci A. Erby

Master's Theses and Doctoral Dissertations

This qualitative research study began as an exploration of the central qualities of the lived experience of students in two urban-suburban high schools where, as an outcome of rapid demographic change, White students now represent the nontraditional racial minority and Black students represent the racial majority. Semistructured interviews, the primary method of data collection, were conducted with students who had graduated from the high schools under study and with adults who had significant ties to the district. Student informants, in particular, shared high school experiences of marginalization that included silence, rendered invisibility, stereotyping, and bias owing in large part to …

Socialization Of Undergraduate Engineering Students Into Work-Experienced Organizations And Occupational Roles Through A Cooperative Education Program, Chris Plouff

Master's Theses and Doctoral Dissertations

This study investigated cooperative education as an organizational phenomenon using a qualitative approach. The objectives of this study were to 1) describe the experiences of students entering an organization through a cooperative education program; 2) describe the organizational processes used to introduce students into an organization and occupational roles through a work experience; 3) understand any common patterns or themes associated with these experiences; 4) develop a model or framework that describes the processes used in these settings; and 5) determine activities and processes that will better facilitate the student’s movement from the education to the work environment through a …

Peptide Deformylase: A Modeling Study Of The Active Sites Of Plants And Bacteria And The Design, Synthesis, And Biological Activity Analysis Of Peptide-Based Inhibitors, Jonathan C. Barnes

University of Kentucky Master's Theses

All nascent polypeptides synthesized in bacteria, mitochondria, or chloroplastsstart with a N-formylmethionine. Peptide deformylase (PDF) is a mononuclear metal ionprotein that is responsible for removing the N-formyl group of nascent proteins found inbacteria and chloroplasts in order for them to become mature proteins. It is possible, asseen from the literature with actinonin, to chelate the enzyme's metal ion and inhibit thefunction of protein production essentially resulting in death of the bacteria, or plant. Thisstudy examines the active site of Arabidopsis thaliana (At) types of PDF (AtDEF1 andAtDEF2, respectively) as well as bacterial DEF2 using sequence alignments andcomputational modeling. This work …

Computational Fluid Dynamics And Experimental Studies Of An Energy-Efficient Uv Disinfection System For Water Treatment, Nancy Goenawan

Theses

In typical commercial UV treatment system, water is flushed through a reactor vessel, where a UV lamp irradiates the flowing water. The distribution of the UV dose is extremely non-uniform. At distances away from the light, the dosage will be too low to kill the microorganism. As a result more power is needed in such a system for an effective treatment. A new energy-efficient UV disinfection system, named "Off Center", was designed, developed, and tested. This "Off Center" system consists of a UV bulb that has been relocated from its traditional central location to a location closer to the 4-in …

Development Of An Automated Template Selection And Alignment Tool For Protein Structure Homology Modeling, David R. Riley

Theses

DNA and protein sequence data sets have exploded in size over the past several years and have stimulated the development of new methods for closing the sequence/structure gap. Bench laboratory methods, while being the most accurate, are still far too time consuming and limited to breech this gap. Thus computational methods have become the standard. The work described here details the development of a system to automatically select a structural template, align the template and query sequence and model the query. The system was implemented fully for antibodies but maintains a modular design that can accommodate a wider variety of …

Experimental And Numerical Investigation Of Plasma-Jet Forming, Sailesh Kumar Tangirala

University of Kentucky Master's Theses

Sheet metal forming has found increasing applications in modern industries. To eliminate use of expensive tools during product development, thermal forming, a rapid prototyping process that is flexible enough to decrease costs has been developed. Thermal forming processes use a heat source to perform the required deformation mainly by creating a thermal difference along the thickness of the sheet. Gas flames, lasers and plasma heat sources have been used for sheet metal bending by thermal forming. An alternative to laser and gas flames, plasma-jet forming has been developed that uses a non-transferred plasma arc as a heat source. The plasma-jet …

Detection Of Malingered Mental Retardation, Lili Odom Graue

University of Kentucky Master's Theses

The 2002 Supreme Court decision (Atkins vs. Virginia, 536 U. S. 304), prohibiting the execution of mentally retarded persons, may potentially increase malingering of mental retardation (MR). There is limited research addressing the detection of feigned MR. The present study compared results from tests of intelligence, adaptive functioning, legal/courtroom knowledge, and psychiatric and neurocognitive feigning to determine how effectively these instruments discriminate between MR participants and community volunteers asked to either approach the test honestly (CVH group) or feign, or malinger, MR (CVM group). CVMs suppressed their IQ scores sufficiently to appear MR. CVMs overestimated deficits on individuals with genuine …

Wear Tolerance Of Seeded And Vegetatively Propagated Bermuda Grasses Under Simulated Athletic Traffic, Theresa A. Bayrer

University of Kentucky Master's Theses

The use of seed-propagated bermudagrasses [Cynodon dactylon (L.) Pers.], particularly for athletic fields, is rapidly increasing. Recently developed seeded cultivars have been bred for improved turfgrass quality (finer texture, darker green color, etc.) and for increased cold tolerance, but their ability to tolerate wear has not been investigated. This study was conducted to determine if three seeded cultivars could tolerate simulated athletic wear as well as one vegetative cultivar commonly used in Kentucky. The seeded cultivars, Riviera, Princess 77 and Yukon were planted at 24.4 and 48.8 kg PLS ha-1 and the vegetative cultivar Quickstand was sprigged at 1250 and …

Parallelization Of A Maximum Parsimony Branch And Bound Algorithm For Phylogenetic Inference, Curtis J. Howard

Theses

Phyiogenetic inference involves the reconstruction of evolutionary relationships among species in the form of branching diagrams called trees. Specifically, certain biological structures common to all living organisms, such as morphological characteristics, protein sequences or DNA sequences can be compared Differences and similarities in these characteristics among species are used to reconstruct the evolutionary relationships and draw trees. Many methods of tree reconstruction are currently used. The method of maximum parsimony for phyiogenetic inference is a widely used algorithm which employs the hypothesis that the most likely tree for a given group of data will be the one which uses the …

Huayru, Cristian Mogrovejo

Theses

For this project, I will design a board game based on Huayru, a traditional ritual game played by some indigenous people from the Andes mountain range for centuries. Mostly played currently at funerals, this tradition is considered to be in extinction [...]. It is not among my objectives to reintroduce the practice of the ritual; instead, I will aim to rescue its memory and trnsmit knowledge about it by designing a different game using the elements of the original as inspiration.

The Relationship Between Emotional Recognition And Personality Traits, Lyndon A. Mitchell

Theses

This study investigated the relationship between personality traits and the ability to recognize emotions from facial expressions. A sample of undergraduate and graduate students (n = 52) were administered the 16 Personality Factor Questionnaire 5th Edition (16PF-5) (Cattell, 1993) and an abbreviated version of Ekman's Pictures of Facial Affect (Ekman & Friesen, 1976). Pearson product-moment correlations revealed that the personality trait, Apprehension, was associated with the accurate recognition of most of the emotions. Further, regression analyses revealed that the recognition of fear was best predicted by the 16PF factors Dominance, Self Reliance and Apprehension. Personality differences were also identified between …

Differential Cryptanalysis Of Substitution Permutation Networks And Rijndael-Like Ciphers, Gnanasekaran Sakthivel

Theses

A block cipher, in general, consist of several repetitions of a round transformation. A round transformation is a weak block cipher which consists of a nonlinear substitution transformation, a linear diffusion transformation and a key mixing. Differential cryptanalysis is a well known chosen plaintext attack on block ciphers. In this project, differential cryptanalysis is performed on two kinds of block ciphers: Substitution Permutation Networks(SPN) and Rijndael-like Ciphers. In order to strengthen a block cipher against differential attack, care should be taken in the design of both substitution and diffusion components and in the choice of number of rounds. In this …

Managing The Acm Programming Contest, Navin Bhaskar

Theses

The Association for Computer Machinery (ACM) conducts an international collegiate programming contest held on an annual basis. Teams compete to solve multiple questions within the allotted six hour duration of the contest. A panel of judges grades the solutions online. The team that answers the maximum questions correctly wins the contest. This application will assist in the process of selection of winners of the programming contest. It will make the process of submission of solutions, and grading of the answers convenient. The ACM application is a Java based and web-enabled application and therefore platform independent.

Tuple Board: A New Distributed Computing Paradigm For Mobile Ad Hoc Networks, Chaithanya Bondada

Theses

In this project, we introduce a new distributed computing paradigm called "tuple board" which is based on the tuple space abstraction originated by Gelernter and the blackboard architecture popular in distributed artificial intelligence. Most prominent implementations of tuple space systems including JavaSpaces and T-Spaces follow a centralized architecture where the space itself resides on a server, akin to a database server. Recently, researchers have attempted to develop decentralized architectures for tuple space systems. Some work includes LIME and PeerSpaces. In our opinion, the traditional implementation of tuple spaces is not well suited for ad hoc networks where devices frequently lose …

R(W5 , K5) = 27, Joshua Stinehour

Theses

The two-color Ramsey number R(G , H) is defined to be the smallest integer n such that any graph F on n vertices contains either a subgraph isomorphic to G or the complement of F contains a subgraph isomorphic to H. Ramsey numbers serve to quantify many of the existing theorems of Ramsey theory, which looks at large combinatorial objects for certain given smaller combinatorial objects that must be present. In 1989 George R. T. Hendry presented a table of two-color Ramsey numbers R(G , H) for all pairs of graphs G and H having at most five vertices. This …

Ad Hoc File System, Swarup Datta

Theses

Ad hoc File System (AFS) is middleware for peers wishing to share and access data in ad hoc fashion. AFS permits processes to export local files and import files shared by other processes. Communication between hosts is facilitated by the M2MI Framework, a novel paradigm for building collaborative systems. The API provided by AFS allows for data to be exported to the middleware, which become accessible to hosts running AFS. Interested peers can import exported data to their local system, allowing uniform access to local and remote files. Peers can also unexport and unimport data undoing effects of export and …

Hf-Dsr: Dynamic Source Routing For High Frequency Radio Networks, Michael Stringer

Theses

HF-DSR is an ad hoc routing protocol designed to operate efficiently over high frequency (HF) radio networks. Ad hoc routing protocols allow networks to provide dynamic routing between endpoints. In contrast, static routing schemes require networks to be configured with potential routes in advance. As such, ad hoc routing mechanisms can compensate for unanticipated factors such as radio frequency (RF) interference or node mobility. HF-DSR is largely based on Dynamic Source Routing (DSR), a level 3 ad hoc networking protocol that emits network control information on demand. HF-DSR incorporates portions of DSR which minimize the quantity of control information transmitted. …

Development Of Single Nanoparticle Optical Assays For Imaging Single Living Cells, William John Brownlow

Chemistry & Biochemistry Theses & Dissertations

Multi-drug resistance (MDR) has been reported in both prokaryotes and eukaryotes; the pathogenic gram-negative bacteria Pseudomonas aeruginosa can extrude a variety of structurally and functionally diverse substrates via a number of membrane transport systems leading to MDR. We have developed a novel nanoparticle assay to characterize both the membrane transport system composed of the MexAB-OprM efflux pump and the membrane permeability induced by antibiotics. Gold (Au) and silver (Ag) nanoparticles were investigated for use as probes to explore membrane transport in P. aeruginosa.

The surface plasmon absorption (color) of Au nanoparticle solutions was found to change in the presence …

Past Glacial And Interglacial Conditions In The Arctic Ocean And Marginal Seas - A Review, Dennis A. Darby, Leonid Polyak, Henning A. Bauch

OES Faculty Publications

Past changes in the Arctic Ocean and its marginal seas have been profound, even during the last 10,000 years. Understanding these changes, such as those occurring during the transition from glacial to interglacial climates, are important for research on modern processes, because this knowledge provides a framework and unique perspective in which to view the modern physical and biological processes. This paper discusses our current understanding of past environmental change and processes relative to those currently in progress. Special emphasis is placed on the most recent transition from a glacial state to the modern interglacial conditions.

Explaining Disparities In Asylum Claims, Ming Hsu Chen

Faculty Scholarship

No abstract provided.

Clinical Paradox. Man Versus Machine, Shabih Manzar

Saudi Medical Journal

No abstract provided.

Intraligamentary Solid-Cystic Neoplasia With Histomorphological Features Of Sclerosing Stromal Tumor, Zuhal Gucin

Saudi Medical Journal

No abstract provided.

The Use Of Etoricoxib In Patients With Bronchial Asthma Associated With Aspirin Sensitivity, Ibrahim K. Nahar, Abdulaziz T. Muqim, Bassmah I. Al-Qhouti, Adeeba A. Al-Herz, Diaa K. Shehab, Singh S. Uppal, Mousa E. Khadadah

Saudi Medical Journal

No abstract provided.

Age And Tenure Of The Justices And Productivity Of The U.S. Supreme Court: Are Term Limits Necessary?, Joshua C. Teitelbaum

Georgetown Law Faculty Publications and Other Works

This Article examines the relationship between the productivity of the U.S. Supreme Court and the age and tenure of the Supreme Court Justices. The motivation for this Article is the Supreme Court Renewal Act of 2005 (SCRA) and other recent proposals to impose term limits for Supreme Court Justices. The authors of the SCRA and others suggest that term limits are necessary because, inter alia, increased longevity and terms of service of the Justices have resulted in a decline in the productivity of the Court as measured by the number of cases accepted for review and the number of opinions …

Anti-Terrorist Finance In The United Kingdom And United States, Laura K. Donohue

Georgetown Law Faculty Publications and Other Works

This article adopts a two-tiered approach: it provides a detailed, historical account of anti-terrorist finance initiatives in the United Kingdom and United States—two states driving global norms in this area. It then proceeds to a critique of these laws. The analysis assumes—and accepts—the goals of the two states in adopting these provisions. It questions how well the measures achieve their aim. Specifically, it highlights how the transfer of money laundering tools undermines the effectiveness of the states' counterterrorist efforts—flooding the systems with suspicious activity reports, driving money out of the regulated sector, and using inappropriate metrics to gauge success. This …

The Fall Of Legal Ethics And The Rise Of Risk Management, Anthony V. Alfieri

Articles

No abstract provided.

Jewish Law For The Law Librarian, David Hollander

Articles

Mr Hollander provides an introductory guide to the Jewish legal system with the intent of providing law librarians with the basic knowledge necessary to begin to help a patron conduct research in Jewish law.

Out Of Thin Air: Using First Amendment Public Forum Analysis To Redeem American Broadcasting Regulation, Anthony E. Varona

Articles

American television and radio broadcasters are uniquely privileged among Federal Communications Commission (FCC) licensees. Exalted as public trustees by the 1934 Communications Act, broadcasters pay virtually nothing for the use of their channels of public radiofrequency spectrum, unlike many other FCC licensees who have paid billions of dollars for similar digital spectrum. Congress envisioned a social contract of sorts between broadcast licensees and the communities they served. In exchange for their free licenses, broadcast stations were charged with providing a platform for a "free marketplace of ideas" that would cultivate a democratically engaged and enlightened citizenry through the broadcasting of …

The Death Penalty's Future: Charting The Crosscurrents Of Declining Death Sentences And The Mcveigh Factor, Scott E. Sundby

Articles

No abstract provided.