Digital Commons Network^™

$750 Million Of Neutral News Coverage: A Content Analysis Of Nextel's Media Exposure Before And After Becoming Nascar's Primary Corporate Sponsor., Joshua Tod Watson

Electronic Theses and Dissertations

This study examined the exposure of the Nextel brand name in major U.S. newspapers 1 year before and after Nextel became the primary sponsor of the North American Stock Car Association of Racing. A content analysis of 576 newspaper articles was performed. The hypotheses tested the quantity and quality of Nextel's coverage, as well where the stories were appearing and where the brand was being used in the stories.

The study found the number of Nextel mentions in year two was almost 4 times as many as year one. The data reveal a dramatic increase in cases found in sports …

A Study Of Instructional Technology Resource Teachers In Virginia's Public School Divisions: Who Are They And What Do They Do?, Kimberly M. Hooker

Electronic Theses and Dissertations

The purpose of this research was to examine the role of instructional technology resource teachers (ITRTs) within Virginia's public school divisions focusing on how ITRTs used their time throughout the school year to integrate technology into the curriculum. Based on data from surveys of current ITRTs, the researcher investigated further to find relationships, if any, among the professional and educational backgrounds and work calendar of these teachers and their responses to their actual role. The study also addressed training that the ITRTs have received to assist them in their job duties and explored the participants' perceptions of their roles as …

Indoor Air Quality: Determination Of Voc's In A Reproductive Clinic., Miriam Rachel Trivette

Electronic Theses and Dissertations

The purpose of this study was to perform an indoor air quality (IAQ) investigation at the Center for Applied Reproductive Science (CARS) to assess whether VOCs exist at levels dangerous to embryo. Formaldehyde, n-hexane, benzene, and styrene concentrations were measured at six locations. Formaldehyde concentrations were comparable to office and residential indoor air. N-hexane, benzene, and styrene were not detected. In addition, acetaldehyde, ethanol, and isopropyl alcohol were detected. IAQ parameters (carbon dioxide, temperature, humidity, pressure, and particulates) were measured at 22 sites monthly for one year. Temperature and humidity readings were within Environmental Protection Agency recommendations. Particulate concentrations were …

In Pursuit Of The Ed.D.: A Study Of East Tennessee State University's Doctors Of Education: Who They Are And Why They Persisted., Mata J. Banks

Electronic Theses and Dissertations

According to Kerlin (1995a), first-generation students are not expected to survive to doctorate degree attainment because of vulnerability to negative affects associated with their status; yet persist they do at East Tennessee State University. The desire to study the first-generation East Tennessee State University's Doctors of Education and the limited number of first-generation graduate studies available, especially in the academic field of education, promoted developing this study. It was the intent of this study to offer additional empirical research toward understanding variables associated with first-generation persistence as encountered by East Tennessee State University's Doctors of education.

Quantitative analysis derived through …

Diel And Tidal Rhythms Of Emercenge Events Based On Acousitc Observations In A Shallow Estuary, Mei Sato

Electronic Theses and Dissertations

Field observations of emergence events by epibenthic animals were conducted with two Tracor Acoustic Profiling Systems (TAPS) in the Damariscotta River estuary, Maine, in fall 2005 and summer 2006. Spectral analysis revealed that periodic temporal variability of the acoustic signals was concentrated at four periods. One was the solar day (24 h) and the other three were lunar tidal periods of 25.82 (diurnal or Oi), 12.42 (semidiurnal or M2) and 6.21 h (half the semidiurnal period). The mysid Neomysis americana showed strong nocturnal migration patterns of water-column activity during its peak summer emergence season, regulated by the diel cycle. Toward …

Surface Modification Of Pigments And Its Role In Offset Ink Setting, Wei Gu

Electronic Theses and Dissertations

Ink setting affects offset print quality issues such as print mottle and print gloss. It is known that ink setting depends on many factors, such as the nature of the substrate, the properties of the coating, and the ink formulation. However, the role of pigment surface chemistry in offset ink setting is unknown. From an experimental perspective, it is difficult to determine the role of the surface chemistry as it requires paper coatings that are similar in physical properties and differ only in the pigment surface chemistry. The aim of this study was two-fold. The first was to apply methods …

Derivation Of Change From Sequences Of Snapshots, Dominik Wilmsen

Electronic Theses and Dissertations

Current research in the domain of geographic information science considers possibilities of including another dimension, time, which is generally missing to this point. Users interested in changes have few functions available to compare datasets of spatial configurations at different points in time. Such a comparison of spatial configurations requires large amounts of manual labor. An automatic derivation of changes would decrease amounts of manual labor. The thesis introduces a set of methods that allows for an automatic derivation of changes. These methods analyze identity and topological states of objects in snapshots and derive types of change for the specific configuration …

Engineering Calpastatin To Develop A Sensor To Detect Active Calpain, Lisa M. Vanhooser

Electronic Theses and Dissertations

Calpains, Ca²⁺-activated cysteine proteases are essential for early embryonic development and function in signal transduction, cell adhesion, and apoptosis. Calpains also contribute to cataractogenesis, myocardial infarctions, and neurodegenerative diseases such as Alzheimer's. The various methods currently available to demonstrate these roles do not directly identify spatial or temporal activation of calpain in cells. Therefore, a tool to detect active calpain in situ will be useful. Calpastatin is the ubiquitous, endogenous inhibitor that specifically binds the active conformation of the conventional calpains. Calpastatin consists of four homologous domains each containing three subdomains A, B, and C. The crystal structure …

Yellow Tree: A Distributed Main-Memory Spatial Index Structure For Moving Objects, Hariharan Gowrisankar

Electronic Theses and Dissertations

Mobile devices equipped with wireless technologies to communicate and positioning systems to locate objects of interest are common place today, providing the impetus to develop location-aware applications. At the heart of location-aware applications are moving objects or objects that continuously change location over time, such as cars in transportation networks or pedestrians or postal packages. Location-aware applications tend to support the tracking of very large numbers of such moving objects as well as many users that are interested in finding out about the locations of other moving objects. Such location-aware applications rely on support from database management systems to model, …

Geomorphic Considerations For Restoration Of Headwater Streams Impacted By Mountaintop Mining Hollow Fills., Ben Mater 1982-

Electronic Theses and Dissertations

Within the Appalachian hills of eastern Kentucky, large-scale coal mining operations are directly altering the headwater landscape through the construction of hollow fills. These man-made landforms and their associated in-stream structures alter a longterm, continuous morphologic evolution driven by the natural interaction of erosive forces and material of the earth's surface. Post-mining channel morphology, hillslopes, and hollow fills continue to actively evolve in response to erosive forces. Aquatic ecosystem functionality and hollow fill stability may be jeopardized by this condition, yet they may be preserved through efforts to restore or re-create channel morphology more representative of the natural headwater stream. …

Determining Environmental Drivers Of Fish Community Structure Along The Coast Of Maine, Adrian Jordaan

Electronic Theses and Dissertations

The work presented here was conceived to determine whether structure in marine communities could be related to multiple scaled environmental parameters, as seen in lake and stream systems. Four datasets collected from 2001 to 2005 were used. The datasets ranged from local scale tidepool and estuarine surveys, to more regional intertidal/subtidal surveys and conclude using a coast-wide trawl survey. Initially, a bootstrap program for running principal component analysis (PCA) was developed and tested for utility with additional information from Pearson correlation coefficients. The bootstrap-PC A program was capable of determining confidence limits for correlations amongst species. The results from analysis …

Production Of Ethanol From Hardwood, Jay Mitchell

Electronic Theses and Dissertations

Diminishing crude oil and natural gas supplies, along with concern about greenhouse gas are major driving forces in the search for efficient renewable energy sources. The conversion of lignocellulosic biomass to energy and useful chemicals is a component of the solution. Ethanol is most commonly produced by enzymatic hydrolysis of complex carbohydrates to simple sugars followed by fermentation using yeast.

C₆H_l0O₅ + H₂O −Enxymes→ C₆H₁₂O₆ −Yeast→ 2CH₃CH₂OH + 2C0₂

In the U.S. corn is the primary starting raw material for commercial ethanol production. …

Multivariate Discretization Of Continuous Valued Attributes., Ehab Ahmed El Sayed Ahmed 1978-

Electronic Theses and Dissertations

The area of Knowledge discovery and data mining is growing rapidly. Feature Discretization is a crucial issue in Knowledge Discovery in Databases (KDD), or Data Mining because most data sets used in real world applications have features with continuously values. Discretization is performed as a preprocessing step of the data mining to make data mining techniques useful for these data sets. This thesis addresses discretization issue by proposing a multivariate discretization (MVD) algorithm. It begins withal number of common discretization algorithms like Equal width discretization, Equal frequency discretization, Naïve; Entropy based discretization, Chi square discretization, and orthogonal hyper planes. After …

Amphibian Colonization Of New Habitat : "If You Build It, They Will Come"., Piper Lee Roby-Thomas 1977-

Electronic Theses and Dissertations

In 2003, Wilson Creek running through Bernheim Arboretum and Research Forest in central Kentucky was restored to its original winding path through a valley field. Early 20th century settlers had previously redirected this creek to run a straight path along the eastern hillside in order to maximize the valley for farming. As part of the restoration to its pre-settler path, seven ponds were created in the corridor of the old streambed, which created habitat for pond-breeding amphibians. Sampling began one year after construction was complete, and over two years the amphibian assemblages of these ponds were compared to those of …

Effective Teaching Of African American Students Who Receive Special Education Services., Nancy Stone Bealmear

Electronic Theses and Dissertations

This dissertation is an examination of effective teaching of African American students who receive special education services by teachers who are either National Board Certified Teachers or Highly Qualified Master's Level teachers. It begins with an overview of the history of special education in the United States and the current conditions of special education. It then covers the matter of overrepresentation of African American students in special education and the various contributors to that problem. The conceptual framework is to examine the self-efficacy and best practices of National Board Certified Teachers or Highly Qualified Master's Level teachers from middle and …

Men, Cohesion, And Battle : The Inniskilling Regiment At Waterloo., Mark Richard Bois

Electronic Theses and Dissertations

This thesis is a social and military history of the First Battalion of the 27th Foot, the Inniskilling Regiment, at the Battle of Waterloo. Crucial to success in battle is the cohesion of units and their ability to withstand punishment and keep fighting. This paper offers an examination of the constituent elements of unit cohesion as manifested in the demonstrable staying power of the Inniskillings. The Inniskillings' battlefield experience is a case study in cohesion: by understanding the devastating battlefield experience of the 1/27th, the only all-Irish infantry unit at Waterloo, it is then possible to examine the many elements …

Design Of An Interface For A Decision Support System For Dairy Collection., Charles Milan Braidich 1983-

Electronic Theses and Dissertations

A decision support system (DSS) is a computer-based tool that extends an operator's cognitive abilities and makes him more effective in decision-making situations. This thesis discusses the characteristics and historical applications of decision support systems. It also discusses the contexts, operator requirements, and policies surrounding a SS for dairy security; in this instance security includes both the physical security of the product and the integrity of the data concerning the product. Finally, this thesis discusses the methodology and resulting design of the DSS for dairy security. Specific tools and considerations involved in the design include the human centered design cycle …

Implant Esthetics Using A Nobel Replace Standard Implant Vs. Nobel Perfect Scalloped Implant Placed In Immediate Extraction Sockets In The Esthetic Zone Of The Maxilla., John W. Mcgehee

Electronic Theses and Dissertations

Aims. The primary aim of this study was to compare esthetic outcomes for the Nobel Replace Standard implant vs. the Nobel Perfect Scalloped implant as determined by hard and soft tissue measurements and objective and subjective esthetic indices. Methods. 18 patients with a tooth in the maxillary esthetic zone scheduled for replacement with an immediate implant who had at least one adjacent tooth were included in the study. Nine test patients received a Nobel Perfect scalloped platform implant and 9 positive control patients received a Nobel Replace 2-stage flat platform implant. Prior to suturing a fixture level impression was taken …

A Programmable Mask For Direct Write Lithography., Kunal Pharas 1979-

Electronic Theses and Dissertations

Lithographic processes for printing device structures on integrated circuits plays a major role in the semiconductor industry. This project aims at designing and fabricating a programmable mask for a direct write lithography system which can achieve higher throughput at a reasonable cost for the semiconductor industry in the future. The device has apertures of different sizes which can be used as programmable masks by opening and closing the shutters over them. The shutters are actuated by electrostatic comb drive actuators which are microfabricated nickel structures electroplated on copper over a sacrificial layer and are released later by a sacrificial etch. …

Anxiety And Control In African American Families., L. Kevin Chapman

Electronic Theses and Dissertations

To investigate the effects of anxiety and ethnicity on parental control as well as the effects ethnicity, anxiety, and parental control have on child diagnostic severity, anxious African American and Caucasian families were compared. Sixty-nine parent-child dyads completed the study. Forty-two mothers in the sample suffered from an anxiety disorder whereas twenty-seven mothers did not meet criteria for any current or past psychopathology. Parent-child dyads were videotaped as they completed two mildly stressful tasks together. Parental and child behaviors during the interactions were coded to obtain an objective measure of parents' behavior. Data were reduced to produce four behavioral composites …

The Effect Of Modular Tapered Fluted Stems On Proximal Stress Shielding In The Human Femur., Justin Steve Conway

Electronic Theses and Dissertations

Modular hip implants are currently being used in total hip arthroplasty revision procedures because it is common to have little or no bone left in the proximal region of the femur and it is difficult to accurately size implants based off of radiographs or other medical imaging techniques. The effect of modular systems using tapered fluted stems on proximal stress shielding in the human femur is the focus of this study. Seven modular implants were press-fit into seven femurs, where there was little or no contact between the modular body and the test femur. Finally, hydroxyapatite bone cement was added …

Service-Learning Outcomes At A Faith-Based Institution Of Higher Education., Amy L. Doolittle

Electronic Theses and Dissertations

This quantitative dissertation examines outcomes of a required service-learning program at a faith-based institution. Two hundred and ten students completed a pre/post survey administered to a sophomore level class about background, educational processes, and twelve attitude and knowledge subscales related to service-learning. All subscales met standard reliability standards. Two dependent variables were used to measure critical thinking and students' perceptions of learning. While students entered the class with strong positive attitudes and knowledge on most subscales, four subscales Civic Attitudes, Civic Behavior, Civic Action, and Social Justice showed significant positive changes, and two subscales Motivation for Service and Personal Enrichment …

Mobility-Based Predictive Call Admission Control And Resource Reservation For Next-Generation Mobile Communications Networks., Sherif Said Rashad 1974-

Electronic Theses and Dissertations

Recently, the need for wireless and mobile communications has grown tremendously and it is expected that the number of users to be supported will increase with high rates in the next few years. Not only the number of users, but also the required bandwidth to support each user is supposed to increase especially with the deploying of the multimedia and the real time applications. This makes the researchers in the filed of mobile and wireless communications more interested in finding efficient solutions to solve the limitations of the available natural radio resources. One of the important things to be considered …

A Robotics Testbed : The Design & Implementation With Applications., Travis Alan Riggs

Electronic Theses and Dissertations

In order to study the movements of autonomous mobile robots, a tool is needed to quantify those movements. A testbed is an apparatus that provides a designated space for multiple mobile robots while tracking their position in real-time. That tracking information can also be communicated to the robots themselves to serve as closed-loop feedback. With this tool, many techniques can be developed and validated through various control experiments. A design and implementation of a testbed is presented here. The testbed is analyzed for its performance and several applications are presented to demonstrate its usefulness.

International Social Work Best Practices Curriculum For Schools Of Social Work., Stephen Ulrich

Electronic Theses and Dissertations

In 1979, the U.S. President's Commission on Foreign Language and International Studies stated that to function successfully in the next century, all adults would need more knowledge about our interdependent world, awareness of other peoples, and greater sensitivity to global attitudes and customs. Social work is deeply rooted in the tradition of promoting social justice and in the profession's commitment to concern for culturally diverse groups. It is increasingly felt that social workers must acquire skills and attitudes that will enable them to effectively intervene with clients from diverse cultures and ethnic backgrounds. The inclusion of international content into social …

Animal Experiment (Rabbit) To Demonstrate Changes In Trabecular Bone Mechanical Properties Over Time Using Finite Element Analysis., Shuo Yang 1974-

Electronic Theses and Dissertations

Decreased strength of trabecular bone is a direct effect of osteoporosis, which can be evaluated by finite element analysis. However, computational limitations have restricted previous trabecular bone analyses primarily to the linear domain. In addition, previous work was largely invasive and the corresponding finite element models were typically homogeneous. Nonlinear heterogeneous finite element analysis was used to calculate trabecular bone apparent strength directly from in vivo micro computational tomography (micro-CT) scans. Through a series of validation experiments, it was shown that this nonlinear modeling is more accurate in evaluating trabecular bone mechanics in osteoporosis than previous work. A parameter driven …

Parental Investment And Male Ornamentation In The Eastern Bluebird (Sialis Sialis), Daniel Paul Wetzel

Electronic Theses and Dissertations

Bright plumage coloration in most birds is thought to be a product of sexual selection. Brighter, more-ornamented males are preferred by females because their plumage conveys information regarding the quality of the individual. One measure of male quality is willingness to invest in offspring. In birds, investment is usually measured as the rate at which nestlings are provisioned. However there are other forms of parental investment. The purpose of this study is to quantify the relationship between two measures of parental investment and their association with structural plumage coloration in male Eastern Bluebirds (Sialia sialis). I found there was no …

The Introduction Of Christianity Into Scandinavia, Iceland, And Finland., Tracy Marie Legel 1974-

Electronic Theses and Dissertations

The conversion of Scandinavia, Iceland and Finland occurred over many years and resulted in the formation of Scandinavian monarchies, a strong Icelandic parliament, and an loosely organized Finnish nation. The conversion of Northern Europe was completed Viking style with aggressive tactics, involvement of few as outside leaders as possible, and reward seeking converts. Viking explorations introduced the Northern European communities to Christianity and Northern Europeans acknowledged the religion in their own societies even though they did not completely embrace it. When their status quo was upset, Northern Europeans looked to Christianity as a solution to their woes. Promoted by the …

The Social Development Model And Delinquent Behavior : A Case Study., Jessica Noel Mullikin

Electronic Theses and Dissertations

This study was conducted to examine the impact that extreme economic deprivation has on adolescent social development. Data for this study was collected from the 2000 U.S. Census Bureau. This study uses the Developmental Prevention model as a theoretical basis, a theory which posits that extreme economic deprivation, as measured by income, poverty, crime rates, racial composition of neighborhoods, and prevalence of mothers and grandparents as sole caregivers, is a risk factor for all delinquent behaviors. The specific delinquent behaviors examined in this study were teen pregnancy, school dropout, poor school attendance, and criminality. A study was conducted to compare …

Variation Within Shape Determining Processes., Abigail Lindsay Oesterritter

Electronic Theses and Dissertations

This thesis briefly describes my current body of work, both formally and conceptually. The section titled Pattern Within Form, describes the concepts behind the use of stamps and molds, and the process of separately throwing segments of a single form and attaching them together. It also discusses the visual influences of industrial materials that I have translated onto the surface of the vessel. Process and Material describes a typical reduction cool firing within a wood kiln. It explains the differences between cottonwood, elm, box elder, and pine, as well as the comparisons between a firing that is shut off at …