Digital Commons Network^™

Foraging Preferences Of Captive Canada Geese Related To Turfgrass Mixtures, Brian E. Washburn, Scott C. Barras, Thomas W. Seamans

Human–Wildlife Interactions

Overabundant populations of Canada geese (Branta canadensis) cause economic and safety concerns associated with collisions with civil and military aircraft. Habitat management techniques that reduce the use of airfield habitats by geese might reduce these concerns. The objective of this study was to determine if captive Canada geese exhibited a foraging preference between a vegetation mixture consisting mostly of perennial ryegrass (Lolium perenne) and white clover (Trifolium repens) versus an endophyte-infected tall fescue- (Festuca arundinacea) based vegetation mixture. We established 6 paired plots of perennial ryegrass-dominated and tall fescue-dominated mixtures at NASA …

Fouling In Silicon Microchannel Designs Used For Ic Chip Cooling And Its Mitigation, Jeffrey L. Perry

Theses

Particulate fouling studies with alumina and silica dispersions were performed in silicon, rectangular microchannels having hydraulic diameters between 220-225 μm. The particulates used ranged from the colloidal size range up to tens of microns in size (for particle aggregates). Data show for the most part the absence of particle depositions within the microchannels. This is even the case when there is an electrostatic attraction between the particles and the microchannel surface. The primary reason for this is due to the high wall shear stress at the microchannel walls. In contrast, the headers for the microchannels are quite susceptible to particulate …

Light Pollution: A Case For Federal Regulation, Timothy Berthaume

Theses

The purpose of this thesis is to examine the body of evidence concerning light pollution and exposure to artificial light and determine if the scientific research warrants regulatory oversight in the United States. The first question that guided this effort was: Does improper artificial lighting and exposure to light-at-night constitute a risk to human health and safety? The follow up question being: Is light pollution a concern to ecological systems, and if so to what extent? A comprehensive literature review was conducted to ascertain the status of the research—if any—in these two areas and what the findings were. The overarching …

Noise-Robust Automatic Speech Recognition Using A Predictive Echo State Network, Mark D. Skowronski, John G. Harris

Electrical and Computer Engineering Faculty Research & Creative Works

Artificial neural networks have been shown to perform well in automatic speech recognition (ASR) tasks, although their complexity and excessive computational costs have limited their use. Recently, a recurrent neural network with simplified training, the echo state network (ESN), was introduced by Jaeger and shown to outperform conventional methods in time series prediction experiments. We created the predictive ESN classifier by combining the ESN with a state machine framework. In small-vocabulary ASR experiments, we compared the noise-robust performance of the predictive ESN classifier with a hidden Markov model (HMM) as a function of model size and signal-to-noise ratio (SNR). The …

Questions For The 07.12.07 Meeting, 2007, Monteverde Institute

Monteverde Institute: Sustainable Design, Planning and Community Development

Questions to be asked of high school and municipal staff relating to the future of education and various facilities (church, welcome center, transportation, conservation and public spaces) in the Monteverde Zone.

In Tension, Alicia Ross

Theses

The conceptual subject matter of in_tension falls between two major categories: the personification of two conflicting female roles (the need to be a nurturer and the longing to be an object of sexual desire) and the amalgamation of biological and societal foundations in which we see ourselves and others. These two major categories are more principally bound by the larger schema of relations between the sexes and the molding of our desires through social conventions. My artwork tends to explore the conflict many women encounter—including myself—of which roles they wish to partake and the friction between the voyeur or the …

Use Of Learning Styles In The Selection Of Instructional Strategies : Does Pedagogy Lead To Practice?, Roger E. Baker

Graduate Research Papers

Much has been written about the importance of learning styles in instructional design. Learning styles can be measured by the use of personality profiles such as the Myers-Briggs Type Indicator (MBTI). Learning styles can also be measured by Learning Style Inventories and defined by cognitive theory such as Gardner's multiple intelligences. This literature review explores the different approaches to the study of learning styles and the practical use of learning style indicators as a tool for selecting instructional strategies.

Many challenges exist in designing instruction to the personal level including costs, time, and instructor limits. Philosophical questions on the benefits …

No Child Left Behind Act : Implications And Strategies For Middle School Science Teaching, Kimberly A. Holmes

Graduate Research Papers

The No Child Left Behind Act was enacted to ensure quality education for all students. Despite the constraints of the No Child Left Behind Act, the teacher has the responsibility to provide quality science education for the students. This paper will guide teachers in selecting instructional strategies that have been supported by research that closely meets the research-based standards provided by the No Child Left Behind Act.

Unethical Obedience By Subordinate Attorneys: Lessons From Social Psychology, Andrew M. Perlman

Suffolk University Law School Faculty Works

This Article explores the lessons that we can learn from social psychology regarding a lawyer's willingness to comply with authority figures, such as senior partners or deep-pocketed clients, when they make unlawful or unethical demands. The Article reviews some of the basic literature in social psychology regarding conformity and obedience, much of which emphasizes the importance of context as a primary factor in predicting people's behavior. The Article then contends that lawyers frequently find themselves in the kinds of contexts that produce high levels of conformity and obedience and low levels of resistance to illegal or unethical instructions. The result …

Spike-Based Feature Extraction For Noise Robust Speech Recognition Using Phase Synchrony Coding, Ismail Uysal, Harsha Sathyendra, John G. Harris

Electrical and Computer Engineering Faculty Research & Creative Works

We propose a noise robust feature extraction technique for speech signals using phase synchrony. The front-end employs a psychoacoustic cochlea model with inner hair cells to transform speech into a parallel stream of spike trains as observed in the auditory nerve fibers. The degree of phase synchrony among nerve fibers with similar characteristic frequencies is calculated to yield a feature vector which shows little degradation in response to increasing levels of noise. As a benchmark, the feature set is used in a biologically plausible model with a spike-based, liquid state machine classifier for a simple acoustic classification task. Though applied …

Exploring The Nature Of Individual Identity In Faulkner’S As I Lay Dying And Ware’S Jimmy Corrigan: The Smartest Kid On Earth, Elizabeth Spavento

The Oswald Review: An International Journal of Undergraduate Research and Criticism in the Discipline of English

No abstract provided.

Evolutionary Systems Theory, Universities, And Endogenous Regional Economic Development, William M. Bowen

Mid-Western Educational Researcher

Universities today are increasingly being viewed in terms of serving the purpose of economic development. This paper postulates that their chief purpose is to advance knowledge and that in doing so they effectuate regional economic growth and development through processes specified in the endogenous economic growth model. To achieve this purpose and to contribute optimally to regional economic growth and development arguably requires coherent educational policies. The central proposition is that to formulate coherent educational policies for endogenous regional economic development requires placement of a theory of the advancement of knowledge at the center of related policy deliberations. An evolutionary …

The Clep Program: An Evaluation And Assessment At A Small Private University, William Beaver, Stephen T. Paul

Mid-Western Educational Researcher

The Educational Testing Service (ETS) created the College Level Examination Program (CLEP) in 1965 and over the years it has become a staple of American higher education. In order to better understand the ramifications of the CLEP program, this article provides a brief history of CLEP and reexamines some of the findings of earlier research. The present study investigates new areas by addressing several research questions. For instance, what are the impacts of a student’s age, academic ability, gender, and previous learning experiences in regard to passing a CLEP exam? How much time do students spend in preparing for CLEP, …

2007 Rosabeth Moss Kanter Award For Excellence In Work-Family Research Publication, Center For Families, Center For Work And Families

Center for Families Publications

No abstract provided.

Classification Of Microarray Data To Predict Toxic Exposure, Tarek A. Seleem

Browse all Theses and Dissertations

This thesis presents a software system for the analysis of microarray data. Microarrays are a relatively new technology that can be used to examine the state of the genome of an organism at some instant in time. The challenge is the amount of natural variation in biological systems limits our ability to identify specific genes that may be sensitive to changes in an organism's physiology or its environment. The analysis software consists of three modules. The first module filters microarray data to reduce the complexity of the problem. The second module selects subsets of genes for evaluation using a genetic …

Due-B In Chromatin And Nuclear Speckles, Nadia Katrangi

Browse all Theses and Dissertations

The DNA unwinding element binding protein (DUE-B) was first identified by using a yeast one hybrid screen with the DNA unwinding element (DUE) from the c-myc origin as bait. DUE-B's orthologue in the yeast Saccharomyces cerevisiae lacks the last 60 C-terminal amino acids and has been identified as a D-tyrosyl-tRNA deacylase. A substantial group of evidence suggests a role for DUE-B in the regulation of replication initiation. Here we show that DUE-B is focused in nuclear speckles and colocalizes with spliceosome associated protein 145 (SAP145), an mRNA splicing factor 3B subunit. Mass spectrometry results show that SAP145 co-purifies with the …

Biogeochemical Processes And Seasonal Effects In Flow-Through Mesocosm Reactors Simulating Constructed Wetlands, Sarah J. Tritschler

Browse all Theses and Dissertations

Due to their distinctive environments, constructed wetlands are utilized to remediate groundwater that has been contaminated with chlorinated ethenes (i.e. perchloroethene) and other such contaminants. This research focuses on vertical flow mesocosm reactors housed in a greenhouse at Wright State University, which simulate a constructed wetland on Wright-Patterson Air Force Base. These reactors were studied to investigate the effects of vegetation and seasonal changes on the redox parameters present. Water samples were collected from six different reactors from late September/early October 2006 until August 2007. The reactors were sampled three days in a row and this sampling was done once …

Vglut And Gad65 Expression In Physiologically Characterized Ia Afferents, Ivonne Nkoli Ukpabi

Browse all Theses and Dissertations

Peripheral nerve injury is known to induce several changes in the physiology and morphology of the injured afferent. These changes include hyperexcitability, decreased dorsal root potentials (DRP), loss of synaptic vesicles as well as loss of the vesicular glutamate transporter, VGLUT1. While many of the changes caused by peripheral injury revert with regeneration, others appear to be permanent. The loss of the stretch reflex for example is a puzzling outcome of recovery after peripheral nerve transection and regeneration, especially given that the electrical counterpart of the stretch reflex (the H-reflex) recovers after regeneration. We hypothesized that stretch induced transmission is …

The Development And Molecular Expression In Mammalian Cells Of An Ha-Tagged Plasmid Encoding For The Target Of Rapamycin (Mtor), Kevin S. Dougherty

Browse all Theses and Dissertations

The protein kinase mammalian Target of Rapamycin (mTOR) is a master controller of cell growth and proliferation due to its ability to integrate growth signals and regulate translation through 4E-BP1 and p70-S6K. We developed four phCMV2-HA-tagged plasmids to overexpress TOR in mammalian cells: Wild Type, D2357E (Kinase Dead), R2109A (PA Binding Deficient) and, S2035T (Rapamycin Resistant) each verified by restriction enzyme digestion and direct sequencing. Plasmid DNA was overexpressed in COS-7 cells and the 289 kDa protein detected in Western blots developed with anti-HA and anti-mTOR antibodies. Kinase activity of the overexpressed protein was detected by in vitro phosphorylation of …

Parameters Affecting Mental Workload And The Number Of Simulated Ucavs That Can Be Effectively Supervised, Bryan A. Calkin

Browse all Theses and Dissertations

The present study investigated performance and mental workload when an operator supervises multiple UCAVs. This study focused on the parameters that affect the operator's performance during a simulated UCAV suppression of enemy air defenses (SEAD) mission, which is expected to be the primary function of the UCAV. All three manipulated factors, including the number of vehicles to be supervised, vehicle airspeed, and difficulty level of attacks (targets engaged by either a single vehicle or multiple vehicles), affected both performance and subjective mental workload measures. A performance mental workload redline was defined as the point at which accomplishment scores no longer …

The Effects Of Physical Activity And A Single Gender Learning Community On The Success Of First Year College Males, Cory D. Taylor

Browse all Theses and Dissertations

Since the 1970's and the passing of Title IX of the educational amendments to the Civil rights Act of 1964, the gender demographic at American colleges and universities has changed dramatically. Today the average American college or university is over 57% female, a number that is projected to exceed 60% by 2020. In addition to the fact that in comparison to their female counterparts, less male students are coming to college, we are also seeing that once in college, male students are less likely to persist through to graduation. This study investigated the effects of weekly physical activity within the …

The Electroanalytical Performance Of Sonogel Carbon Titanium (Iv) Oxide Electrodes Versus Conducting Polymer Electrodes In The Electrochemical Detection Of Biological Molecules, Jelynn A. Stinson

Browse all Theses and Dissertations

The electrochemical performance of a newly developed sonogel carbon titanium (IV) oxide (SGC/TiO2 ) electrode against poly(3-methylthiophene) (P3MT) and poly(2,2'-bithiophene) (PBTP) modified electrodes in the electrochemical detection of biological molecules is reported. The stability of the Titanium (IV) Oxide coating on the sonogel carbon electrode was shown to be greater than the P3MT coating on the conventional size glassy carbon electrode. After 10 consecutive scans, there was a 21% loss of the initial signal at the P3MT modified electrode and a 5% loss of the initial signal at the SGC/TiO2 electrode. The influence of NAD+ on NADH response was tested. …

Amendment (2007)

Amendment, 2004-

Amendment is a VCU student-produced progressive literature and art journal that provides a platform for students to promote equality, tolerance, and social progression through artistic expression.

The Case Method: Using Case Based Instruction To Increase Ethical Understanding In Engineering Courses, Brock Barry, Aman Yadav

School of Engineering Education Graduate Student Series

The case method: Using case-based instruction to increase ethical understanding in engineering courses Introduction

The paper presents a discussion of how case-based instruction is performed and the perceived benefits of its application. We begin with a brief discussion of the historical background of case- based instruction and then discuss the use of case methodologies within various educational contexts. Connections are then made to its use in general ethics instruction, as well as specifically engineering ethics instruction. Finally, we conclude the paper with a call for rigorous education research to compare the various methods of ethics instruction, including case-based instruction, and …

Elastometric Sensing Using Higher Flexural Eigenmodes Of Microcantilevers, M. Spletzer, A. Raman, R. Reifenberger

Department of Physics and Astronomy Faculty Publications

We present a method to detect with high sensitivity the viscoelastic property changes of sensor coatings on microcantilever arrays due to radiation, analyte binding, or adsorption. The method uses higher order flexural eigenmodes to identify the location and magnitude of the nonuniform elasticity changes in the microcantilever coating. We demonstrate the method by monitoring the time evolution of resonance frequencies and Q factors of different flexural eigenmodes of microcantilevers functionalized with a small drop of a photosensitive polymer as it is exposed to ultraviolet radiation. The method is particularly well suited for measuring quantitatively the time varying viscoelastic properties of …

Storm Chamber Technology For Storm Water Storage And Gray Water Management And Reuse, Purdue Ect Team

ECT Fact Sheets Archive

StormChamber™ is an open bottom, arch-shaped, HDPE infiltration chamber which functions in both permeable and non-permeable soils for subsurface retention, detention, recharge and reuse of storm water, or gray water, designed to overcome the deficiencies of other technologies. It provides a higher level of nutrient and pollutant removal by taking advantage of the natural biological and physical properties of the soil. StormChamber™ systems mimic pre-development conditions by putting post-construction run off back into the ground approximately where it used to go, maintaining base flow to streams, wetlands, lakes, ponds and countering salt-water intrusion in coastal areas.

Air Ventilation Protection System For Building Security, Purdue Ect Team

ECT Fact Sheets Archive

The new technology to solve the limitation of conventional Collective protection equipment (CPE) system has been developed as "Combined ESP/ESF/PCO and microfibrous media CPE application". This concept of this new technology is the combination of the both systems; 1) Microfibrous Material Technology, and 2) Photocataytic Oxidation Technology.

Funnel & Gate System, Purdue Ect Team

ECT Fact Sheets Archive

The limited success and high cost of traditional 'active' ground-water-contaminant plume management efforts (i.e., pump-and-treat systems) has stimulated a search for less expensive 'passive' plume interception and in-situ treatment technologies. The 'funnel and gate system,' which uses heterogeneous (surface-mediated) reactions on porous media to degrade dissolved contaminants, is one passive technology under consideration.

Chemical Cleaning Process For Porable Water Distrubution Pipe Systems, Purdue Ect Team

ECT Fact Sheets Archive

Aging potable water distribution pipe systems are becoming a major concern throughout the world. Deterioration of water quality and service as a result of micro biological tuberculation and corrosion continues to increase. Major costs for replacement or rehabilitation of distribution systems are being faced by most communities. The chemical cleaning solution is an organic oxide scavenger which is mixed with a predetermined quantity of muriatic acid and circulated through an isolated section of the water main.

Plasma Arc Torch Technology, Purdue Ect Team

ECT Fact Sheets Archive

For many years, in-situ thermal vitrification has been recognized as one method to remediate contaminated soils and help stabilize land fills. However, the complexity of the process and the uncertainty of the results have limited the use of this remediation technique.A plasma is a gas that has been ionized by the electric arc of a plasma torch and can therefore respond to electrical and magnetic fields. Plasma arc technology can create plasma using almost any type of gas (oxygen, nitrogen, carbon monoxide, air, etc.) and in a wide range of pressures (vacuum to 20 atmospheres).The process of plasma remediation of …