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Analysis Of Benzo(A)Pyrene-Induced Gene Expression Changes In Fisher 344 Rat Liver By Affymetrix Microarray And Quantitative Real-Time Pcr, Alhaji Umar N’Jai

Dissertations

No abstract provided.

Common Sense Parenting (Csp) Learn At Home Kit: A Clinical Effectiveness Evaluation Of A Commercially Available Video Training Program For Parents, Sean T. Smitham

Dissertations

Much has been made of the gap between psychotherapy research and clinical practice. Most current psychotherapy research is focused on what could be viewed as macro-level efficacy type issues, while practicing clinicians are often most concerned with micro-level effectiveness questions. The current study-an evaluation of a parent training (PT) program provides an example of how scientist-practitioners can contribute meaningfully to psychotherapy research by conducting small scale clinical effectiveness studies. Parent Training (PT) is a well established efficacious treatment approach for child disruptive behaviors and non-compliance. Recent research has also established that self-administered videotape PT programs may also be efficacious. A …

The Relationship Between Student Characteristics And Success In An Online Business Course At West Shore Community College, Amy J. Wojciechowski

Dissertations

This ex-post facto study was conducted to identify characteristics of successful online students with respect to: (a) gender; (b) age; (c) previous courses completed online; (d) ACT English, Reading, and Composite test score; (e) ASSET Reading and Writing test score; (f) grade point average of student upon completion of the course; (g) withdrawal from previous courses; (h) semester format (16-week vs. 8-week); (i) student status (full-time vs. part-time); and (j) attendance at orientation that will predict success. A small, rural community college in western Michigan participated in the study. The subjects included 179students in an online Introduction to Business course …

Two High School Teachers’ Initial Use Of Geometers Sketchpad: Issues Of Implementation, Kathryn G. Shafer

Dissertations

This study documents two teachers' instructional practices as they learn and incorporate Geometer's Sketchpad (GSP) activities into their curriculum. The researcher (as a mentor) worked closely with two high school geometry teachers following a case study methodology. As a secondary goal, this study examined the use of a mentor as a professional development model to assist classroom teachers in the learning and implementation of Geometer'sSketchpad. Data were gathered through interviews, surveys, observations, classroom videotape, participant journal entries, as well as researcher field notes.

Results are reported in the areas of goals of instruction, method of instruction, role of the teacher, …

Divine Minds: The Cognitive Foundations Of God And Religion, Todd Tremlin

Dissertations

Understanding how human brains work bears directly on the study of religion. Introducing the new "cognitive science of religion," this dissertation explains how natural mental processes that shape everyday human thought are also responsible for the arising and persistence of religious ideas and for the content and development of religions. The central claim of this work is that understanding the origin and features of god concepts and the religious systems that form around them requires an understanding of the adapted mind. This argument unfolds in two parts. The first explores the cognitive foundations ofsupernatural beings. It discusses in both evolutionary …

Leadership Competency Needs Of U.S. Campus Law Enforcement Administrators, John Nathaniel Vinson

Dissertations

College campus police administrators operate in a complex administrative environment that produces difficult leadership challenges. In order to manage these challenges, police administrators need to possess certain leadership competencies. This study fills a gap in the academic literature by examining the perceptions of campus law enforcement administrators in the United States as to the kinds of leadership challenges they face, and the nature of the leadership competencies needed to manage these challenges. A nationwide survey of college campus police administrators at four-year colleges and universities was conducted to (1) explore their perceptions regarding the major leadership challenges they currently face, …

The Study Of Nontraditional Student Satisfaction With Academic Support Services Offered At Western Michigan University, Natalie Morton

Dissertations

This study examines the impact from the adaptation of lean manufacturing strategies on key external financial performance measures as reported by a number of management accounting methods. The research is not concerned with creating a justification for lean manufacturing strategies but rather it evaluates the inadequacies of standard financial reporting methods to accurately reflect operational improvements possible in the key performance measures through the early stages of a lean program.

ProModel simulation software is used in conjunction with Microsoft Excel and Visual Basic to create a simulated repetitive manufacturing environment and production planning and control system. The study examines the …

The Differences In Performance Between Large And Small Organizations In Mental Health Settings, Randy Parker

Dissertations

The quantitative part of this study examined the relationship between organizational size and staff performance in mental health group home settings.The data from two hundred and sixty-two group homes from small, medium, and large umbrella organizations were examined. The results of independent third party evaluations were compared across these umbrella organizations. Evaluations measured compliance and performance mandated by federal health and safety regulations.

The qualitative part of this study involved on-site interviews with group home staff from various organizations at various professional levels which scored either a low or a high number of errors. A qualitative analysis was conducted to …

Underrepresented Doctoral Students: The Cultural And Institutional Barriers That Hinder Their Ability To Graduate, Nancy Greer-Williams

Dissertations

African American, Hispanic/Latino, and American Indian doctoral students continue to have attrition rates substantially higher than their White counterparts (Lovitts, 2001). Attrition was defined as the act of weakening or exhausting by constant harassment, abuse, or attack (Merriam-Webster, 2004). Research todate on this topic has focused on causes and barriers that can be attributed to mainstream groups, not on particular cultural barriers that may adversely affectdoctoral persistence among underrepresented groups. This study collected the lived experiences of these students at three separate university settings and turned them into conceptualized statements in an effort to understand the meaning of their experiences …

Evaluating Progress In Behavioral Programs For Children With Pervasive Developmental Disorders: Continuous Versus Intermittent Data Collection, Anne Rena Cummings

Dissertations

It is well documented that intensive behavioral treatment of early childhood autism can result in significant improvements in adaptive behavior. The typical teaching format in such programs is based on the restricted operant (i.e., discrete trial) in which the performance of an exemplar skill follows a clear instruction and precedes programmed reinforcement or error correction. Because of the often-intensive nature of behavioral treatment, it is not unusual for thousands of learning opportunities to be presented each week. There currently exists a professional debate regarding the frequency of data collection necessary in autism treatment programs. One side of the argument favors …

The Glacial Geology Of Southern St. Joseph County, Michigan, Linda Nicks

Dissertations

The objective of the dissertation was to map the glacial geology in southern St. Joseph County, Michigan. The surficial geology was divided into three distinct land systems which are moraine, outwash and fan deposits. The Sturgis Moraine is the most prominent feature transecting the study area from east to west. The topography is further dissected by southwest-trending channels interpreted as tunnel channels.

Thick accumulations of sand and gravel in the study area indicate that glacial meltwater deposition played a dominant role in shaping the landscape. Based on the relative size of the channels and outwash deposits, the largest contribution from …

Origin Of The Central Kalamazoo River Valley, Southwestern Michigan, Usa, Andrew Kozlowski

Dissertations

Chapter I

Introduction

Southern Michigan's geomorphology is a testament to the glacial processes that buried and sculpted the landscape during the last glaciation. Many glacial landforms in southwestern Michigan, including the Kalamazoo River Valley, provide evidence that aids in understanding the chronology, ice dynamics and glacial processes that occurred in Michigan during the last ice age.

As the climate began to warm about 20,000 yr B.P. (Larson and Schaetzl, 2001) the extensive Laurentide Ice Sheet began to recede from its maximum southern position reached during the Late Wisconsinan (Figure 1). It was at this point that modem surficial drainage systems …

The Effects Of Negotiated Written Feedback Within Formative Assessment On Fourth Grade Students' Motivation And Goal Orientations, Craig Alan Waddell

Dissertations

This research was a field-based investigation into the impact of written feedback on students' perceptions, motivation, and academic performance. Seventy-nine fourth grade students, from five elementary classrooms participated in two studies. Study 1 (n=15) was an ABAB-type, reversal design, intended to provide support for a cause-and-effect relationship between feedback scores (i.e., a rubric-based evaluation of teacher's written feedback) and feedback effectiveness (i.e., a survey-based measure of students' views on the value of written feedback). Study 2 (n=64) was a quasi-experimental study intended to demonstrate: a) the relationship between feedback scores and feedback effectiveness, b) an association between feedback effectiveness and …

Effects Of Disability Disclosure And Acknowledgment On Ratings Of Interviewees With Visible Disabilities, Lisa Lynn Roberts

Dissertations

While some authors stress the benefits of disclosing one's disability prior to the interview in order to eliminate interviewer surprise, attention-related research suggests that such disclosure is likely to result in self-focused thinking by the interviewer, reducing the ability to judge performance accurately. Similarly, verbal acknowledgment of a visible disability during an interview has been predicted to reduce interviewer anxiety, yet some authors contend that acknowledgment is a violation of the rules of interviewing and adds to discomfort. The present research addressed the question: What are the effects of an applicant's pre-interview disability disclosure and disability acknowledgment during the interview? …

The Efficacy Of A School-Based Support Group On Adolescent Self-Esteem And Social Support, Julia Ann Smith Phd

Dissertations

Adolescents are faced with daily obstacles that affect their ability to progress into adulthood successfully. Rising divorce rates and subsequent single parenting, adolescent pregnancy, drug and alcohol abuse, violence, and lack of parental involvement represent only a few of the many issues teens confront. School nurses are on the front lines, attempting to educate youth against an alarming rise in personal and social controversies that impede their ability to come to school ready to learn. As part of the educational team, school nurses are in a prime position to develop and integrate intervention strategies aimed at assisting adolescents during this …

Investigating Graphical User Interface Usability On Task Sequence And Display Structure Dependencies, Tirthankar Sengupta

Dissertations

Designing Graphical User Interfaces (GUI) requires the consideration of task sequence requirements (sequence of operations arising from task structures and application constraints) and display structure (layout of the elements of the interface) relationships. The basic purpose was to understand the usability differences of the interfaces through efficiency, motor performance, and search performance.

Thirty-two subjects performed experiments in four groups. The experiments differed in display structure and compatibility of task sequences. Subject mouse actions, mouse coordinates and eye positions were recorded. The derived measures, click efficiency, mouse traversal and eye visits to different areas of interest (namely the tool, object, and …

Pitchfork Bifurcations Of Invariant Manifolds, Jyoti Champanerkar

Dissertations

In a parameter dependent, dynamical system, when the qualitative structure of the solutions changes due to a small change in the parameter, the system is said to have undergone a bifurcation. Bifurcations have been classified on the basis of the topological properties of fixed points and invariant manifolds of dynamical systems. A pitchfork bifurcation in R is said to have occurred when a stable fixed point becomes unstable and two new stable fixed points, separated by the unstable fixed point come into existence.

In this thesis, a pitchfork bifurcation of an (in- 1)-dimensional invariant submani-fold of a dynamical system in …

Numerical Simulation Of Microwave Heating Of A Target With Temperature Dependent Electrical Properties In A Single-Mode Cavity, Hoa Kien Tran

Dissertations

This dissertation extends the work done by Hue and Kriegsmann in 1998 on microwave heating of a ceramic sample in a single-mode waveguide cavity. In that work, they devised a method combining asymptotic and numerical techniques to speed up the computation of electromagnetic fields inside a high-Q cavity in the presence of low-loss target. In our problem, the dependence of the electrical conductivity on temperature increases the complexity of the problem. Because the electrical conductivity depends on temperature, the electromagnetic fields must be recomputed as the temperature varies. We then solve the coupled heat equation and Maxwell's equations to determine …

Network Anomaly Detection Using Management Information Base (Mib) Network Traffic Variables, Jun Li

Dissertations

In this dissertation, a hierarchical, multi-tier, multiple-observation-window, network anomaly detection system (NADS) is introduced, namely, the MIB Anomaly Detection (MAD) system, which is capable of detecting and diagnosing network anomalies (including network faults and Denial of Service computer network attacks) proactively and adaptively. The MAD system utilizes statistical models and neural network classifier to detect network anomalies through monitoring the subtle changes of network traffic patterns. The process of measuring network traffic pattern is achieved by monitoring the Management Information Base (Mifi) II variables, supplied by the Simple Network Management Protocol (SNMP) LI. The MAD system then converted each monitored …

Modeling Contaminant Transport And Fate And Subsequent Impacts On Ecosystems, Ming Fan

Dissertations

Assessing risks associated with the release of metals into the environment and managing remedial activities requires simulation tools that depict speciation and risk with accurate mechanistic models and well-defined transport parameters. Such tools need to address the following processes: (1) aqueous speciation, (2) distribution mechanisms, (3) transport, and (4) ecological risk. The primary objective of this research is to develop a simulation tool that accounts for these processes. Speciation in the aqueous phase can be assessed with geochemical equilibrium models, such as MINEQL+. Furthermore, metal distribution can be addressed mechanistically. Studies with Pb sorption to amorphous aluminum (HAG), iron (HFO), …

Continuity Of Bridges Composed Of Simple-Span Precast Prestressed Concrete Girders Made Continuous, Libin Yin

Dissertations

Bridges composed of simple-span, precast, prestressed concrete girders made continuous via cast-in-place decks and diaphragms are continuous only for live loads and superimposed dead loads. The continuity diaphragms often crack due to time dependent effects in the girders. These cracks not only impair bridge ascetics and durability, but also reduce "degree of continuity". A related issue is that joint construction is time consuming and expensive due to reinforcement congestion. This dissertation presents a series of field tests, analytical studies, and laboratory experiments concerning the design and performance of this type of bridge.

Based on a survey of the state departments …

Fluidization Of Nanoparticles, Caroline Hijung Nam

Dissertations

During the past decade, nanoparticles (1-100 nm) and nanocomposites have become the focus of many studies due to the unique properties of nanostructured materials that make them attractive for various applications. Due to their atomic and molecular interactions, nanoparticles and nanocomposites have unique and often favorable catalytic, mechanical, optical, electronic and / or other properties. For instance, nanocrystalline copper is up to 5 times harder than conventional micron sized copper particles. Nanocomposites, such as a homogenous mixture of different nanoparticles, can also exhibit improved properties. Other examples include coating and reacting nanoparticles with a second nanostructured phase. These processes are …

Modeling Usage Of An Online Research Community, Yi Zhang

Dissertations

Although online communities have been thought of as a new way for collaboration across geographic boundaries in the scientific world, they have a problem attracting people to keep visiting. The main purpose of this study is to understand how people behave in such communities, and to build and evaluate tools to stimulate engagement in a research community. These tools were designed based on a research framework of factors that influence online participation and relationship development.

There are two main objectives for people to join an online community, information sharing and interpersonal relationship development, such as friends or colleagues. The tools …

Toxicity Of Manufactured Particulate Materials On Plant Root Growth, Ling Yang

Dissertations

The rapid development of particle technology and the growing use of particulate materials in industries are bringing large amounts of manufactured particles into the environment. Epidemiological studies suggest that fine particles (particles with aerodynamic diameter smaller than 2.5 μm, i.e., PM_2.5) have an association with various adverse health effects in humans. Mass studies have been performed on the toxicity and toxicological mechanisms of airborne particles such as PM_2.5 and PM₁₀, but there are very few investigations which contribute to the knowledge base on biological implications of manufactured particulate materials. Up to now, the published toxicity …

Teachers’ Career Decisions In A Cognitive Framework: Logistical Regression Analysis Of A National Data Set, Tamara H. Rosier

Dissertations

Research was conducted in order to determine if extrinsic, cognitive or situative sets of variables could predict teachers' career decisions using the Schools and Staffing Survey (SASS). Questions from the survey were divided into three cognitive perspectives: extrinsic, cognitive, and situative. Stepwise logistic regression analyses were used to predict group membership among those who chose to stay in their current position and those who left the profession.

Results for the extrinsic set of variables indicated that while the model was a good fit, the ability of the model to predict was low. Teachers agreeing that student behavior interferes with ability …

A Comparative Study Of Interrater Reliability Coefficients Obtained From Different Statistical Procedures Using Monte Carlo Simulation Techniques, Ebrima Nying

Dissertations

Reliability estimation is a key research component within the global area of educational assessment. The literature reports numerous studies using different statistical techniques for estimating reliability of educational measures. However, few have focused on the estimation of interrater reliability of performance assessment (Abedi, Baker, & Herl, 1995). Specifically, this study compared three different methods for estimating interrater reliability to determine if there are differences among these estimates as a function of: sample size, measurement scale, number of raters and the theoretical population reliability (rho). The three methods of estimation were the Intraclass Correlation (ICC(2, k )) (Shrout & Fleiss, 1979), …

Examining The Meaning And Experience Of Self-Determination And Its Impact On Quality Of Life For Individuals With Cognitive Disabilities, Carol Marie Sundberg

Dissertations

There is a national agenda for advancing self-determination for persons with disabilities. Broadly defined, self-determination means having control over ones own life. The purpose of this research was to gain a better understanding of self-determination and its effect on the quality of life of persons with cognitive disabilities. A qualitative, phenomenological approach was selected. Ten individuals from a community mental health system in southwest Michigan participated in the study. Participants had a developmental disability and were dependent on others for their care. The research combined qualitative interviews with behavioral observations and proxy interviewing, and included the audiotaping of those interviews. …

Mothers Of Us All: When Does Political Message Take Precedence Over Art In Some Modern And Contemporary Women’S Poetry, Shanda Hansma Blue Easterday

Dissertations

This dissertation contains an essay with the above title, as well as two sections of poems. The first section of poems is entitled Maria Sibylla Merian, Artist and Naturalist , and is a collection of poems about, and in the voice of, Merian. Many of these are what are known as personna poems. The second section of poems is entitled The Beekeeper's Wife , and uses autobiography as a framework for communicating the humor in human relationships, and for illustrating the surrealism in the human race's relationships with the natural world.

My research for my essay entailed the study of …

From Violence-Prone To Violence-Prepared Organizations Assessing The Role Of Human Resources Management In Preventing Workplace Violence In American City Governments, Saleh Abdel Rahman Ahmed

Dissertations

Violence is a significant occupational hazard in the American workplace. Nearly a thousand employees are murdered on the job each year and workplacehomicide has become the leading cause of death for women and the second for men. From 1993 to 1999, there were an average of 1.7 million nonfatal violent victimizations each year, accounting for 18% of all violent crime. Although government employees accounted for 18% of the U.S. workforce, they made up 37% of workplace violence victims.

A review of literature found no unified definition of workplace violence. Recent scientific research regarding this problem is rare, despite its increasing …

Essays On The Econometrics Of Financial Volatility, Yasemin Bardakci

Dissertations

My dissertation consists of three essays on the econometric analysis of financial volatility.

My first essay is titled "The Runs Test for Volatility Forecastibility: Extensions and Comparisons with Tests for GARCH." Recently, Diebold and Christoffersen (2000) introduced a test for forecastable volatility. In this paper, I compare the size and the power of the runs test and the optimal LM test for GARCH by Monte Carlo simulation. For high frequency returns the LM test has superior power to the runs test. For low frequency returns however, the tests have very similar power. I also propose a switching variance model. For …