Digital Commons Network^™

A Review Of The Endocrine Disrupting Properties Of The Organochlorine Pesticides, And A Critique And Comparison Of The Laws And Regulations Governing Their Usage In The United States And The European Union., Kent Mitchell

Theses

Introduction to the effects of organochlorine based pesticides on the immune system so as to better understand the importance of governmental restrictions put on their usage

A Search Into Time, History, And Relevance: Clay/ Steel/ Fiberglass, Brad Spencer

Theses

Not provided.

Analysis Of Space Employee Risk Acceptance, Aliya Bostubayeva

Theses

In the summer of 2002, eighty-one students, faculty and staff of RIT took a survey that was aimed at determining the possible employees expectations about the risk compensation if hired to work in space. Every mission in space entails a certain degree of health damage; the length of stay is directly related with more risk involved. The survey results help understand rough estimations of risk acceptance of the future space labor force (cosmonauts and astronauts not included). Three sets of questions described the consequences of space missions (short, month-long and long), where the extent of health damage is directly dependent …

Animal Kingdom "Re-Creation", Rattapol Chaiyarat

Theses

Not provided.

A Multilevel Discontinuous Galerkin Method, Jay Gopalakrishnan, Guido Kanschat

Mathematics and Statistics Faculty Publications and Presentations

A variable V-cycle preconditioner for an interior penalty finite element discretization for elliptic problems is presented. An analysis under a mild regularity assumption shows that the preconditioner is uniform. The interior penalty method is then combined with a discontinuous Galerkin scheme to arrive at a discretization scheme for an advection-diffusion problem, for which an error estimate is proved. A multigrid algorithm for this method is presented, and numerical experiments indicating its robustness with respect to diffusion coefficient are reported.

A Plan To Reduce Bullying Behaviors At Coginchaug High School, Steve Wysowski

Abraham S. Fischler College of Education ETD Archive

A survey of sophomores taken in 1999 at Coginchaug high School indicated that student harassment was above the national average as established by The Educational Excellence Alliance. Harassment is defined by the Alliance as “being insulted, teased, or made fun of to your face.” Another follow-up survey was administered a year later. The amount of student-reported harassment was greater in the freshman and sophomore years and diminished in the junior and senior years. A survey taken in October 2002 for the New England Association of Schools and Colleges’ self-study indicated that 90% of the 138 respondents do not feel respected …

Mapping Function To Failure Mode During Component Development, Irem Y. Tumer, Robert B. Stone

Mechanical and Aerospace Engineering Faculty Research & Creative Works

When designing aerospace systems, it is essential to provide crucial failure information for failure prevention. Failure modes and effect types of analyses and prior engineering knowledge and experience are commonly used to determine the potential modes of failures a product might encounter during its lifetime. When new products are being considered and designed, this knowledge and information is expanded upon to help designers extrapolate based on their similarity with existing products and the potential design tradeoffs. in this work, we aim to enhance this process by providing design-aid tools which derive similarities between functionality and failure modes. Specifically, this paper …

A Study To Determine Which Class Setting And Delivery Method Would Lead To Improved Test Scores In The Computer Information Systems (Cis) Firm At Bethel High School, Deborah G. Vines

OTS Master's Level Projects & Papers

To answer this problem the following hypothesis was established: There will be a significant difference in CIS Firm students' performance on tests that are taught in a didactic structure when compared to students taught in the simulated-office environment.

A Relationship Between Grades Earned By Sixth Grade Core Science Students And Their End Of Year Grades, Denise Wilda Padrick

OTS Master's Level Projects & Papers

To solve this problem, the following hypothesis was tested: 1. A relationship does not exist between sixth grade level academic grades earned at the end of a first nine weeks grading period and the year end grades.

Selectivity And Metaplasticity In A Unified Calcium-Dependent Model, Luk C. Yeung, Brian S. Blais, Leon N. Cooper, Harel Z. Shouval

Science and Technology Department Faculty Journal Articles

A unified, biophysically motivated Calcium-Dependent Learning model has been shown to account for various rate-based and spike time-dependent paradigms for inducing synaptic plasticity. Here, we investigate the properties of this model for a multi-synapse neuron that receives inputs with different spike-train statistics. In addition, we present a physiological form of metaplasticity, an activity-driven regulation mechanism, that is essential for the robustness of the model. A neuron thus implemented develops stable and selective receptive fields, given various input statistics

Aircraft Landing Gear Simulation And Control, Sanoopkumar Ambalaparambil

Theses

The focus of this work is the development of a Multi-degree Of Freedom (MOF) model for simulation and control of the landing performances of the SAE Heavy Lift Airplane model built by the Aerodynamics design team of RIT. From dynamic considerations, the landing gear performance has two areas of interest: a) behavior during touchdown impact, and b) response to excitation induced by track roughness during taxi, take-off and later part of the landing runs. As the problem at hand is highly nonlinear and complex, initially a simplified 1-dof model of the same aircraft is derived and analyzed using Lagrange's equations …

Adaptive-Critic-Based Optimal Neurocontrol For Synchronous Generators In A Power System Using Mlp/Rbf Neural Networks, Jung-Wook Park, Ganesh K. Venayagamoorthy, Ronald G. Harley

Electrical and Computer Engineering Faculty Research & Creative Works

This paper presents a novel optimal neurocontroller that replaces the conventional controller (CONVC), which consists of the automatic voltage regulator and turbine governor, to control a synchronous generator in a power system using a multilayer perceptron neural network (MLPN) and a radial basis function neural network (RBFN). The heuristic dynamic programming (HDP) based on the adaptive critic design technique is used for the design of the neurocontroller. The performance of the MLPN-based HDP neurocontroller (MHDPC) is compared with the RBFN-based HDP neurocontroller (RHDPC) for small as well as large disturbances to a power system, and they are in turn compared …

Variability And Relationships Among 12-Hour Ivdmd, Starch, Oil, Protein, And Physical Characteristics Of 16 Sorghum Conversion Lines, Jeffrey F. Pedersen, Kenneth D. Kofoid

Department of Agronomy and Horticulture: Faculty Publications

A factor frequently identified as a key to understanding sorghum [Sorghum bicolor (L.) Moench] feed value to ruminant animals is rate of starch digestion. Recent research in corn (Zea mays L.) has established a strong ability to predict rumen starch degradation from grain physical and chemical parameters. It was therefore important to determine whether similar relationships could be established in sorghum. The objectives of this study were to determine: 1) range of variation for 12-hour in vitro dry matter disappearance (IVDMD), chemical, and physical grain quality parameters among 16 sorghum conversion lines; and 2) to establish the strength …

Growing Corn In A Computer: The Hybrid Hybrid-Maize Simulation Model And Its Application To Production Agriculture, Achim R. Dobermann, Haishun Yang

Department of Agronomy and Horticulture: Faculty Publications

Outline

Yield potential and yield gaps

To achieve yield potential of an environment

Hybrid Hybrid-Maize model

Hybrid Hybrid-Maize validation

Potential applications

EI Lincoln, NE: 2003 Yields

What determines spatial variation in corn yield potential in Nebraska?

Simulated attainable corn yields in different regions of Nebraska

To achieve full climatic site yield potential, management requires:

Optimal management: gain in season length

Corn yield potential in 2003

Potential applications

Summary

Outlook

Optical Properties Of Materials For 157 Nm Lithography, Anatoly Bourov

Theses

A survey of optical properties of sputtered materials in the spectral range of 145 nm to 800 nm has been performed. The optical constants n and k have been measured using ellipsometric techniques. Four combination materials have been created with the properties suitable for application in Attenuated Phase Shift Mask (APSM) manufacturing. The four combination materials have also been characterized, with the results presented.

A Two-Step Approach Bayesian Network Model Selection, Michael John Kane

Theses

It is often desirable to show relationships between unstructured, potentially related data elements, or features, composing a knowledge database (KD). By understanding the interaction between these elements, we may gain insight into the underlying process from which the KD is derived, and as a result, we can often model the process. Bayesian Belief Networks (BBN) in particular, are adept at modeling knowledge databases for two reasons. The first is that BBNs give a structural representation of data elements through a directed acyclic graph (DAG). This ability may make BBNs invaluable in areas such as data mining, where statistical relationships between …

Minimum Inhibitory Concentrations Of Two Common Food Phenolic Compounds And Their Effect On The Microbial Ecology Of Swine Feces In Vitro, Jennifer I. Zaffarano

University of Kentucky Master's Theses

Feeding sub-therapeutic levels of antibiotics to livestock has been associated withdevelopment and spread of antibiotic resistant bacteria. The present experiment was conductedto investigate the effect of antibiotic alternatives (caffeic acid, chlorogenic acid, and carbadox)on the microbial ecology of swine feces in vitro.Minimum inhibitory concentrations of caffeic and chlorogenic acids were determined forseveral pathogens using macrobroth and agar dilution techniques. Gram-negative bacteria werenot inhibited. Caffeic acid inhibited four Staphylococcus aureus strains at 200 ppm or less, andtwo Clostridium perfringens strains at 300 ppm. Chlorogenic acid inhibited all S. aureus strainsat 500 ppm, and one C. perfringens strain at 400 ppm.Effects of …

Elk Calf Survival, Mortality, And Neonatal Habitat Use In Eastern Kentucky, Nathan W. Seward

University of Kentucky Master's Theses

I estimated survival, cause-specific mortality, and neonatal habitat use of elk (Cervus elaphus nelsoni) calves in eastern Kentucky. I also measured habitat characteristics of elk parturition sites and annual calf production . Radio-collared females were fitted with vaginal implant transmitters and monitored for parturition behavior to locate, capture, and radio-collar calves during the springs of 2001 and 2002. Thirty-seven adult females with implant transmitters were translocated from Logan, Utah, to Addington Wildlife Management Area (WMA) in eastern Kentucky. Additional females from previous releases during 1997 and 1998 were monitored for parturition behavior. Mean calf production for all females monitored (n=77) …

Design Of A Lorentz, Slotless Self-Bearing Motor For Space Applications, Barrett Alan Steele

University of Kentucky Master's Theses

The harsh conditions of space, the stringent requirements for orbiting devices, and the increasing precision pointing requirements of many space applications demand an actuator that can provide necessary force while using less space and power than its predecessors. Ideally, this actuator would be able to isolate vibrations and never fail due to mechanical wear, while pointing with unprecedented accuracy. This actuator has many space applications from satellite optical communications and satellite appendage positioning to orbiting telescopes. This thesis presents the method of design of such an actuator a self-bearing motor. The actuator uses Lorentz forces to generate both torque and …

Analysis Of Hydrodynamic Effects Of Microasperity Shapes On Thrust Bearing Surfaces, Ravinder Babu Siripuram

University of Kentucky Master's Theses

The present thesis is a comparative study of the hydrodynamic effects of a few deterministic microasperity shapes in a thrust slider application. Numerical study based on finite difference methods is used to find the trend of important tribological properties such as friction and leakage. Also, this work utilizes a distinctive and practical approach for comparison by considering constant load conditions, instead of constant film thickness, as is expected in an operating thrust bearing. The results are encouraging and clearly reveal the existence of a transition point for asperity area fraction where a reversal in trends for both the coefficient of …

Understanding Ethnicity: The Relation Among Ethnic Identity, Collectivism, And Individualism In African Americans And European Americans, Ignacio David Acevedo

University of Kentucky Master's Theses

This study examined the relation among ethnic group membership, ethnic identity, collectivism and individualism in a sample of European American and African American college students. Findings suggest that African Americans are more collectivist than European Americans only in reference to their ethnic group. There were no significant differences between ethnic groups in collectivism toward friends, family, strangers or colleagues. Contrary to findings of previous research, there was no significant moderating effect of gender on collectivism differences between ethnic groups. In congruence with previous research, ethnic identity mediated the relation between ethnic group membership and collectivism toward the ethnic group. African …

Soil And Colloidal Phosphorus Dynamics In Three Ky Soils: Bioavailability, Transport And Water Quality Implications, Konstantinos Christos Makris

University of Kentucky Master's Theses

Particulate P constitutes a significant portion of the total P found in surface runoff water. Water dispersed P-containing particles can travel long distances via surface runoff and reach water bodies causing decrease in water quality. The main objective of the study was to evaluate the potential facilitation of P transport by the water dispersed soil colloids (WDC) using three KY soils with a long-term record of poultry manure, and fertilizer P applications. Sequential fractionation for both whole soils and colloidal samples revealed that the WDC had a greater total and labile P content than the soil as a whole. Also, …

Roadway Related Tort Liability And Risk Management: 5th Edition, Kenneth R. Agent, Daniel S. Turner

Kentucky Transportation Center Research Report

This training material has been prepared to address the tort liability problems faced by the Kentucky Transportation Cabinet and Kentucky local governments. The manual defines the problem by reviewing the national picture of generally growing numbers of suits and escalating financial losses from suits against highway agencies.

The manual also sets out solutions, and reviews actions, which can decrease the exposure of highway agencies to these suits. This risk management concept is emphasized throughout the manual.

Training Teachers To Meet The Developmentally Appropriate Needs Of Preschool Children, Sharon R. Brown

Abraham S. Fischler College of Education ETD Archive

Teachers were having great difficulty meeting the developmental needs of the children. This was evidenced by the teachers’ restriction of unstructured playtime, lack of interaction by the teachers with the children during outdoor play, and the children’s inability to engage in probing, exploratory dialogue.

The solution strategy combined a series of trainings for teachers to learn how to engage children actively in meaningful and age-appropriate learning activities to meet their developmental needs. There were two inservice trainings for the teachers. The topics of the trainings were The Use of Outdoor Space as a Learning Environment for Preschoool Children and How …

The Integration Of Si-Based Resonant Interband, Stephen Sudirgo

Theses

eports the first demonstration of the integration of CMOS and Si/SiGe resonant interband tunnel diode (RITD). In Si-based material, recent breakthrough in Si/SiGe RITD grown using molecular beam epitaxy (MBE) made the integration with CMOS possible. The resultant devices enabled the realization of RITD CMOS circuitry, and a NMOS-RITD MOBILE latch was demonstrated in Si, all enabling digital and ternary circuit design for density storage

Experimental Study Of Heat Transfer From A Moving And Evaporating Meniscus On A Heated Surface, Wai Keat Kuan

Theses

A stable meniscus is formed between a needle dispensing water over a heated circular face of a rotating copper block. The needle is offset from the axis of rotation and thus forms a moving meniscus. The water flow rate, heater surface temperature and the speed of rotation are controlled to provide a stable meniscus with complete evaporation of water without any meniscus break-up. The experimental heat transfer rate is compared with the transient heat conduction model. The results indicate that the transient heat conduction plays a major role in the heat transfer process from a moving meniscus. The study provides …

Photo Binge, Colette Fu

Theses

Not Included

The Natural Center, Brian Frus

Theses

Not Included

Energized Fluid Forms In Metal Work, Yoonjin Kim

Theses

Not listed.

Using Natural Language Parsers For Authorship Attribution, Westerly A D Magnera

Theses

The goal of authorship attribution is to find a set of unconscious writing characteristics or style features that distinguish text written by one person from text written by another. Once these features are found, they can be used to pair a text with the individual who wrote it. It is now well accepted that authors develop distinct and unconscious writing features. Over one thousand stylometric features (style markers) have been proposed in a variety of research disciplines [44] but none of that research has looked at the syntactic structure of the text. I conjectures that the distinct writing features of …