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Articles 15571 - 15600 of 19641
Full-Text Articles in Entire DC Network
Evaluation Of The Impact Of Pesticide Exposure On The Rat Enteric Nervous System And Pc12 Cells, Sergei V. Kulikov
Evaluation Of The Impact Of Pesticide Exposure On The Rat Enteric Nervous System And Pc12 Cells, Sergei V. Kulikov
Theses and Dissertations
No abstract provided.
Persistence In Escherichia Coli And The Role Of Hipb And Hipb Interactions, Sean Thomas Keating
Persistence In Escherichia Coli And The Role Of Hipb And Hipb Interactions, Sean Thomas Keating
Theses and Dissertations
No abstract provided.
A Content Analysis Of Client Hope In Psychotherapy Sessions, Stacie Lyn Cooper
A Content Analysis Of Client Hope In Psychotherapy Sessions, Stacie Lyn Cooper
Theses and Dissertations
The purpose of this study was to understand the role of hope and how it was expressed by diverse clients in the initial sessions of individual psychotherapy. Five adult clients representing a range of ages, gender, ethnicities, religious/spiritual orientations, and presenting issues were observed in archival videotapes of their 3rd or 5th psychotherapy sessions at two southern California community counseling clinics. Content analysis revealed that client expression of hopefulness during these sessions varied in quantity and quality. Using a modified version of the CHANGE (Change and Growth Experiences Scale; Hayes & Feldman, 2005), the average scores among the 5 participants …
Socializing Youth For Adult Citizenship Roles: The Youth Citizenship Seminar, Melvin L. Musick
Socializing Youth For Adult Citizenship Roles: The Youth Citizenship Seminar, Melvin L. Musick
Theses and Dissertations
This study reports the results of an online questionnaire administered to a sample of adults who participated in a weeklong youth citizenship seminar at a private Christian university between 1986 and 2006. Using constructs put forth by Westheimer & Kahne (2004a), the study finds that former seminar participants demonstrate noteworthy levels of personally responsible and participatory citizenship, but less involvement in justiceoriented citizenship activities. Voting by respondents who were exposed to political issues or discussions held in their home was significant at the <0.05 level. Voting by respondents whose parents were active politically was significant at the <0.01 level. The study is responsive to concerns regarding effective strategies for increasing the probability of adolescents becoming involved citizens as adults. The study also informs the discussion on the developmental roots of civic involvement, and further elaborates the link between adolescent involvement in youth programs and adult civic behavior.
Numerical Analysis Of Respiratory Aerosol Deposition: Effects Of Exhalation, Airway Constriction And Electrostatic Charge, Samir C. Vinchurkar
Numerical Analysis Of Respiratory Aerosol Deposition: Effects Of Exhalation, Airway Constriction And Electrostatic Charge, Samir C. Vinchurkar
Theses and Dissertations
The dynamics of particle laden flows are integral to the analysis of toxic particle deposition and medical respiratory aerosol delivery. Computational fluid-particle dynamics (CFPD) can play a critical role in developing a better understanding of particle laden flows, especially in a number of under-explored areas. The applications considered in this study include both the numerical aspects and the physical phenomena of respiratory aerosol transport. Objective I: Considering the effects of mesh type and grid convergence, four commonly implemented mesh styles were applied to a double bifurcation respiratory geometry and tested for flow patterns and aerosol deposition. Results indicated that the …
Jules, Emily Oye
Jules, Emily Oye
Theses and Dissertations
The short play Jules is a response to August Strindberg's Miss Julie and Patrick Marber's After Miss Julie. Jules is the story of a wealthy young woman celebrating her Sweet 16 birthday at a lavish "Juicy Couture" theme party in Orange County, California. At the party, her best friend tries to disuade her from falling for a young Mexican immigrant who is catering the party. Jules explores the tensions between rich and poor, the attitude of the privilaged towards the working class, the consequences of relationships, and the attitude that characterizes our "girls gone wild" era.
Magnetic Nanoparticles Based On Iron: Synthesis, Characterization, Design, And Application, Michael David Shultz
Magnetic Nanoparticles Based On Iron: Synthesis, Characterization, Design, And Application, Michael David Shultz
Theses and Dissertations
Magnetic nanoparticles are of great interest for a wide range of applications. This work has focused on three primary forms of iron based nanoparticles and combinations thereof: α-iron, iron oxide, and iron carbide or cementite. The synthesis of several core-shell particles including cementite-iron oxide, α-iron-cementite, and α-iron-iron oxide was accomplished through reverse micelle routes and high temperature decomposition of iron pentacarbonyl in various media. Structural analysis to confirm the structures was performed using extended x-ray absorption fine structure (EXAFS) techniques. A rapid characterization technique was developed utilizing a correlation between Fourier transform infrared spectroscopy and EXAFS to determine the full …
Investigation Of Inosine And Hypoxanthine As Biomarkers Of Cardiac Ischemia In Plasma Of Non-Traumatic Chest Pain Patients And A Rapid Analytical System For Assessment, Don E. Farthing
Theses and Dissertations
Each year in the U.S., approximately 7-8 million patients with non-traumatic chest pain visit hospital emergency departments (ED) for medical evaluation. It is estimated that approximately 2-5% of these patients are experiencing acute cardiac ischemia, but due to the shortcomings of current test methods, they are incorrectly diagnosed and discharged without appropriate treatment provided, thus leading to poor patient outcome and potential medical malpractice litigation.The goals of this research were to evaluate plasma samples for potential biomarker(s) of acute cardiac ischemia prior to heart tissue necrosis, and to ultimately develop a rapid method for detection of the potential biomarker(s) in …
The Effects Of Activity, Age And Injury On Ciliary Neurotrophic Factor Regulation In The Rat Supraoptic Nucleus, Jason M. Askvig
The Effects Of Activity, Age And Injury On Ciliary Neurotrophic Factor Regulation In The Rat Supraoptic Nucleus, Jason M. Askvig
Theses and Dissertations
No abstract provided.
Teacher Perceptions Related To Technology Tools For Curriculum Alignment: A Survey Of Teachers' Response To A Curriculum Mapping Tool, Julie A. Mathiesen
Teacher Perceptions Related To Technology Tools For Curriculum Alignment: A Survey Of Teachers' Response To A Curriculum Mapping Tool, Julie A. Mathiesen
Theses and Dissertations
The intent of this descriptive study was to build understanding about the tools, methods and theory behind teacher use of a technology-based tool and process to align K-12 curriculum with state standards. A shift to a standards-driven education policy has created conditions in which teachers are encouraged to align classroom instruction to designated content standards but currently educators lack methods, guidance and appropriate strategies to accomplish this task. Curriculum mapping software is one tool that has been developed to aid in this endeavor. Data from an existing survey instrument was utilized to analyze subsets of teacher perception data and to …
“They Are Men Who Would Die By The Stars And Stripes”: The 2nd Arkansas Cavalry (Us) During The American Civil War, Brian K. Robertson
“They Are Men Who Would Die By The Stars And Stripes”: The 2nd Arkansas Cavalry (Us) During The American Civil War, Brian K. Robertson
Theses and Dissertations
The 2nd Arkansas Cavalry (US) was one of a handful of Federal regiments raised within the state during the Civil War. The men in the unit came from a broad geographic cross-section. Not only were there enlistments from the traditional stronghold of Arkansas Unionism, the Ozark Mountain Region, but there were also a significant number of enlistments from the Ouachita Mountains as well as the Arkansas Delta. While differing little socially or economically from their secessionist neighbors, the men in the unit nonetheless chose to maintain their loyalty to the United States government. An examination of the regiment reveals that …
A Finite Element Study Of Piezoelectric Thin Films On Substrates, Bo Liu
A Finite Element Study Of Piezoelectric Thin Films On Substrates, Bo Liu
Theses and Dissertations
The overall goal of this work has been mainly to advance the understanding of the degradation in the response of piezoelectric thin films after they are deposited on substrates. To have better understanding of the difference in the response between free standing piezoelectric films and those deposited on a substrate, we calculated the normalized "effective" piezoelectric coefficients for BT/MgO, PZT/STO and ZnO/STO respectively. We also studied the impact on the effective coefficients due to the components of the bulk material's piezoelectric coefficients. After studying the clamping effects of the substrate, lattice mismatch, stiffness of the films and the substrates, we …
A Study Of The Long Range Effects Of Reading Recovery On Student Achievement On The Arkansas Benchmark Examination, Elizabeth Jane Wyatt
A Study Of The Long Range Effects Of Reading Recovery On Student Achievement On The Arkansas Benchmark Examination, Elizabeth Jane Wyatt
Theses and Dissertations
The study examined the progress made by discontinued Reading Recovery ® students three years beyond the initial Reading Recovery intervention. It also examined the relationship between former discontinued Reading Recovery students and the need for additional literacy support from second to fourth grade. The students' results on the Arkansas Benchmark Examination were used to determine the progress made three years following the initial Reading Recovery intervention. These results were compared to the average scores of non-Reading Recovery students. Based on the findings, former Reading Recovery students are performing at the basic or above level on the Arkansas Benchmark Examination.
Analytical Modeling With Decoupled Optimal Control Of Biomechanical Sit -To -Stand Movement, Asif Mahmood Mughal
Analytical Modeling With Decoupled Optimal Control Of Biomechanical Sit -To -Stand Movement, Asif Mahmood Mughal
Theses and Dissertations
Biomechanical movements with multiple degrees of freedom exhibit complex coordination and control mechanisms in the presence of physiological constraints. A human body biomechanical model which can mimic diverse 3D physiological movements is a challenging task. In this study, we develop a mathematical framework to study human sit-to-stand (STS) movement using 2D biomechanical models. This analytical framework models the physiological system for feedback controller design. A 2D 4-segment biomechanical model with optimal feedback controller design provides a motivation to extend this scheme for analytical 3D bipedal modeling. We used a newly developed mathematical modeling toolbox (Maple’s DynaFlexPro) to generate 3D 8-segment …
Connections Available On The Land: A Reflection On Place And Writing, Michael Robert Hodge
Connections Available On The Land: A Reflection On Place And Writing, Michael Robert Hodge
Theses and Dissertations
This is a collection of three personal essays, two of which are each coupled with an encyclopedia article also written by the author that deals with significant places in the author's life. Through the experience of writing in diverse forms, the author seeks to resolve for himself the connections between personal writing and more formal genres. As a common subject linking the two different types of writing, the concept of “place” is also explored. The author discusses relevant influences on his writing, reflects on the experience of writing in two different forms and discusses some conclusions in an afterward.
Delineation Of Malignant Areas In Histological Images Of Head -Neck Cancer, Mutlu Mete
Delineation Of Malignant Areas In Histological Images Of Head -Neck Cancer, Mutlu Mete
Theses and Dissertations
Histopathology remains one of the most critical steps in diagnosis and treatment of any kind of cancer. Recently, the improvements in imaging techniques led to the discovery of virtual histological slides, which in fact are high resolution images with a resolution of 0.25 μm/pixel. These images enabled researchers to investigate cancer cell morphologies at the finest level. Traditionally, assessment of tumor margins is done manually by a histopathologist. The procedure requires histological processing of the tumor and examining multiple tissue sections. The number of sections varies based on the size, location, and type of tumor. The recognition of cancer areas …
Effects Of An Interactive Approach To Word Study Versus A Traditional Spelling Approach, Rhonda Rook
Effects Of An Interactive Approach To Word Study Versus A Traditional Spelling Approach, Rhonda Rook
Theses and Dissertations
Historically, spelling instruction in many classrooms has consisted of the rote memorization of words and rules with little connection to the application of these items in reading and writing. The purpose of the study was to examine the effects of the Rook Fourth Grade Word Study Curriculum on students' improvement in word knowledge, usage, and the application of those skills to writing. Data collection included student pretest and posttest assessments of spelling and writing. In addition, teacher perceptions regarding the influence of an interactive word study curriculum on student achievement and instructional practices were investigated by means of open-ended questionnaires …
Evaluating Cancer Protein Identification From Mass Spectroscopy Data, Philip Hudson Williams
Evaluating Cancer Protein Identification From Mass Spectroscopy Data, Philip Hudson Williams
Theses and Dissertations
Early detection of ovarian cancer substantially increases patient survivability. Mass spectrometry data sets for the purpose of research into early detection methods have been funded by the National Ovarian Cancer Early Detection Program, gynecologic oncology clinic at Northwestern University Chicago IL, USA. Researchers have applied different machine learning methods for classification on several of the spectra data sets, (including the most recent produced on an ABI Hybrid Pulsar QqTOF instrument (Q-Star) mass spectrometer) for the purpose of predicting cancer. While identification of the proteins or metabolites within these spectra is not required for early detection, it would give a better …
Growing Up Separate: An Oral History Of The College Educational And Career Outcomes Of Black Graduates From A Rural, Segregated Public High School From 1954 To 1969, George Ann Newsome Stallings
Growing Up Separate: An Oral History Of The College Educational And Career Outcomes Of Black Graduates From A Rural, Segregated Public High School From 1954 To 1969, George Ann Newsome Stallings
Theses and Dissertations
Using an oral history format, the qualitative study of graduates from Sparkman Training School, an all-Black small, rural school in Sparkman, Arkansas, sought to identify factors evident in this segregated school that enhanced the chances for those graduates in becoming successful in college. The four research questions of the study sought factors in the segregated experience that motivated participants to attend college, helped prepare them for college, contributed to their academic persistence to college graduation, and contributed to a successful collegiate experience. Seven former teachers and 24 of the 35 identified college graduates from 1954 to the school’s closing in …
Mathematical Models: A Generalization From Population Biology And Time Scales, Martin Eggensperger
Mathematical Models: A Generalization From Population Biology And Time Scales, Martin Eggensperger
Theses and Dissertations
In this work, the theory of time scales calculus that we will employ is developed, as derivatives, integrals, and fundamental results are introduced. When necessary for subsequent discussion, other results are presented. The Hilger Complex Plane, the time scale exponential function, and its properties are given, as is a generalization of the variation of constants formula. The discrete and continuous Malthus population model, and the discrete and continuous Verhulst population models are investigated and analyzed. A unified and extended version of both models is developed and criteria for stability of critical solutions is presented. We investigate the relationship between both …
Non -Major Physical Education Students' And Department Chairpersons' Perceptions Of Current Physical Education Activity Curriculum In The Nine State Supported Universities In Arkansas, Lynn Glover Leggett
Non -Major Physical Education Students' And Department Chairpersons' Perceptions Of Current Physical Education Activity Curriculum In The Nine State Supported Universities In Arkansas, Lynn Glover Leggett
Theses and Dissertations
This study examines perceptions of the department chairpersons and non-major physical education students at seven Arkansas state supported universities. The research study was based on two parts. Part I included a 16 item questionnaire survey to the physical education department chairpersons. The results of this study were analyzed using a qualitative clustering approach. The research was grounded in the department chairperson's questionnaire. Part II included a 26 item questionnaire survey to the non-major physical education students enrolled in physical education activity classes to meet the general education requirement. Twenty four questions were analyzed using a chi-square test to determine differences …
Our Story: A Collection Of Stories Told By The Sons And Daughter Of Alonzo Durward Clark And Wilma Emma Lydia Gibson Clark, Kevin L. Clark
Our Story: A Collection Of Stories Told By The Sons And Daughter Of Alonzo Durward Clark And Wilma Emma Lydia Gibson Clark, Kevin L. Clark
Theses and Dissertations
I have listened to my father tell about his childhood days since I was a little boy. This collection of stories came about because I wanted to know more about what life was like for Dad and his family during their growing-up years. When Dad passed away in November of 2001, I felt a sense of urgency to get these stories on paper. I interviewed Dad's siblings, Marion Clark, Charlie Clark, and Carolyn Waldo, and these stories—told over a period of a few days back in 2001—tell the story of what life was like for the sons and daughter of …
Physical And Computational Models Of Human Lung For Optimizing Respiratory Drug Delivery, Mohammed Ali
Physical And Computational Models Of Human Lung For Optimizing Respiratory Drug Delivery, Mohammed Ali
Theses and Dissertations
Respiratory drug particles aerosolized from the commercially available drug delivery devices may charge electrostatically. Investigations of the relevance of this charge on deposition in the human lung are just quite a few and they started early eighties though the aerosol science study is a decade old discipline. Additionally, the localized deposition of drug particles at desired sites such as inflamed tissue and appropriate receptors has been recognized by clinical investigators as being critical factors for the effective administration of respiratory drugs. To accomplish these tasks, it is imperative to undertake in vitro and in silico studies of medicinal drug aerosol …
Physicians' Communication With Older Patients, Particularly Older African American Women, About Sexual Health And Sexual Risk Behaviors For Human Immunodeficiency Virus (Hiv) And Acquired Immune Deficiency Syndrome (Aids)*, Regina Vaughn Gibson
Theses and Dissertations
HIV/AIDS is rising among people age 50 and older in the U.S. but primary care physicians may not be talking to their older patients about sexual health and high-risk sexual behaviors nor routinely testing them for HIV/AIDS. Do primary care physicians in Arkansas obtain sexual histories on their older patients? Are primary care physicians in Arkansas knowledgeable enough about HIV to impart risk-reduction information to their older patients? These are but two of the questions this research seeks to answer. Contrary to what the medical or general population believes, many older persons remain sexually active throughout their lifetime. The problem …
The Effects Of School Climate On Teacher Efficacy And Retention In High-Poverty Schools, Debbie Lambeth
The Effects Of School Climate On Teacher Efficacy And Retention In High-Poverty Schools, Debbie Lambeth
Theses and Dissertations
High-poverty schools must have teachers who believe they can make a difference in the lives of the students. Teachers with high self-efficacy tend to have the desire to make that difference in the life of a child and persist in the face of adversity. School climate plays an important role in building teacher efficacy and persistence in high-poverty schools. The purpose of the study was to examine the relationship between the school climate created by a comprehensive school reform model, teacher efficacy and teacher persistence in high-poverty schools. The findings revealed a statistical significance between teacher efficacy and teacher persistence. …
The Integrated Implementation Of Surgical Simulations Through Modeling By Means Of Imaging, Comprehension, Visualization, Deformation, And Collision Detection In Virtual Environments, Sinan Kockara
Theses and Dissertations
Advances in information technology based applications in medicine and biology help to improve the conventional methods of delivering health services by enhancing and complementing traditional approaches of medical education, diagnostic techniques, intra-operative assistance, and pre/post operative services etc. Individualized medical training by virtual simulations and the use of advanced visualization techniques in cell biology will impact the way medicine is practiced and biological processes are understood. Although enhancing visualization and presenting the unreality in a form of blended virtuality is exceedingly accepted in medicine and biology, it brings many challenging but intriguing and intertwined multi disciplinary problems that are required …
The Proficiency Of English As A Second Language Students At A U.S. Metropolitan University: A Survey Of The Beliefs And Perceptions Of Core-Course Instructors, Pamela Henline Villines
The Proficiency Of English As A Second Language Students At A U.S. Metropolitan University: A Survey Of The Beliefs And Perceptions Of Core-Course Instructors, Pamela Henline Villines
Theses and Dissertations
The success of English as a Second Language (ESL) students at university level in the United States depends upon their ability to perform at a level of language proficiency deemed adequate by university core-course instructors. This writing begins with the historical derivation of “language proficiency,” and continues on to examine the curricular demands of the Intensive English Language Program (IELP) at the University of Arkansas at Little Rock (UALR). ESL students, both IELP graduates and IELP non-affiliates, may enroll in the core courses required to earn a degree from UALR. This thesis is based on the results of a survey …
Virtual Environments And Their Applications In Surgical Training, Tansel Halic
Virtual Environments And Their Applications In Surgical Training, Tansel Halic
Theses and Dissertations
The advances in the application of Virtual Environments (VE) in medicine help to improve the conventional methods of delivering health services by enhancing and complementing traditional approaches of medical education, diagnostic techniques, intraoperative assistance, pre-post operative services etc. Virtual Reality (VR) and Augmented Reality (AR) are two forms of VEs that revolutionize medical training and fill the deficiencies in the traditional teaching/learning methods in medicine. Although presenting the unreality in a form of blended virtuality is exceedingly accepted in medicine, it brings many challenging but intriguing and intertwined multi disciplinary problems that are required to be addressed. This thesis proposal …
Visual Powerpoint: Photographic Principles To Revitalize Slides, Amy M. Thompson
Visual Powerpoint: Photographic Principles To Revitalize Slides, Amy M. Thompson
Theses and Dissertations
“Visual PowerPoint: Photographic principles to revitalize slides” describes and demonstrates how Microsoft PowerPoint users can incorporate four principles of photography into their slides to enhance their presentation purposes and add visual appeal to their slides. Potential users of the trade book are experienced PowerPoint users who wish to improve their slides. Accompanying the manuscript is an analytic cover piece.
The Ecology Of Eastern Wild Turkeys Translocated Beyond Their Ancestral Range To Northwestern Minnesota, Chad J. Parent
The Ecology Of Eastern Wild Turkeys Translocated Beyond Their Ancestral Range To Northwestern Minnesota, Chad J. Parent
Theses and Dissertations
No abstract provided.