Aquatic ecosystems face major transformations as humans increasingly alter their environment by introducing exotic species and changing the temperature regime and nutrient availability of freshwater systems. The impacts of such alterations of...
Effective supply chain design relies on robust analytical models and decision tools. Many such models and tools have been developed to address the supplier selection and order allocation (SSOA) problem, ranging from simple techniques such as...
Many species of fungi undergo a dimorphic transition to switch from a unicellular yeast-like growth form to a filamentous growth form. Ustilago maydis undergoes such a transition, in response to successful mating events and subsequent host cues, to...
This dissertation explores the physical and biological factors that control zooplankton population growth rates in the Ohio River (USA). I employed both observational studies and a mesocosm experiment to ascertain zooplankton population and...
This work presents a novel comprehensive effort to understand the fluid dynamics within orbiting dishes and the effects of the resulting oscillating fluid flow on shear and endothelial cellular responses within the dishes. It is well documented...
The research problem presented herein involved the
structural determination of several a,~-unsaturated acids
and esters. The solution to this problem was sought in the
nuclear magnetic resonance (n.m.r.) spectra of these compounds.
The n.m.r....
This study investigates the placebo effect in randomized controlled trials of low back pain. This effect has not been analyzed over time or in respect to low back pain. A meta-analysis was performed using the Pubmed/Medline database for low back...
Characterization of the optical and electrical properties of organic solar cell materials is of prime importance to organic solar cell design. This thesis describes the use of capacitive photocurrent measurements to study the exciton generation and...
Orbital shakers are commonly used in the cell culture industry due to their ease of use, but the fluid dynamics of this system have not been extensively modeled as the system is difficult to quantify analytically. It is desirable to understand how...
African American men--Mental health; Depression in men; Depression, Mental--Social aspects
Background: In any given year depression affects as many as 121 million people worldwide and 20 percent or 19 million people in the U.S. suffer from at least one episode of depression during their lifetime. In the U.S., depression has a substantial...
In this dissertation, standardized methods for measuring electron emission (EE) from nanostructured materials are established. Design of an emitter array platform, synthesis and nanomanipulation of different types of are successfully conducted....
Self-control in children; Crime and race; Parent and teenager; Teenagers--Family relationships
This study seeks to examine whether racial disparities in offending can be explained through self-control theory. The study utilized longitudinal responses of a nationally representative sample of 1700 adolescents. Parenting and self-control...
Nosocomial infections; Catheterization--Complications; Drug resistance in microorganisms
Catheters represent an essential part of the management of critically and chronically ill patients. However, their use is often plagued by catheter related blood stream infections (CRBSIs), which are associated with increased morbidity, hospital...
Cynicism--Kentucky--Louisville; Public opinion--Kentucky--Louisville; Metropolitan government--Kentucky--Louisville
The government's ability to gain and hold a high proportion of citizens' trust is essential to the functioning of an efficient and successful administration at the federal, state, and local levels. This thesis is a quantitative study aimed at...
This thesis is an examination of the viability of a low pH hydrogen peroxide scrubbing process for removing H 2 S acid gas present in typical biogas streams generated from dairy farm anaerobic digesters. Biogas ranges in composition based on the...
Educational tests and measurements--Social aspects--Kentucky; Test bias--Kentucky; Academic achievement--Social aspects--Kentucky
This study investigates the progress of standards-based accountability in eliminating the effects of student background and school composition factors on student achievement and school performance in a large, urban district in Kentucky. The factors...
Children with visual disabilities--Services for--Kentucky; Children with visual disabilities--Education--Kentucky; Self-help devices for people with disabilities--Kentucky; Students with disabilities--Services for--Kentucky
Assistive technology (AT) helps make the curriculum accessible to students with visual impairments. Studies have shown that half of these students are using assistive technologies. The purpose of this study was to seek a better understanding of the...
INTRODUCTION: Attention Deficit/Hyperactivity Disorder (ADHD) is a disorder that is prevalent throughout the world. It is believed that 5% of school aged children suffer from ADHD, with some estimates indicating as high as 10% may suffer from the...
Energy independence requires that the nation reduce its dependence on foreign oil imports. This can be achieved through electrification of transportation vehicles if proper battery technology can be developed. In addition, the renewable energy...
III-nitrides (InN, GaN, AlN) are some of the most promising materials for making blue light emitting diodes (LED), blue laser diodes (LD) and high power, high temperature field effect transistors (FET). Current techniques produce GaN films with...
