Medicine and Health Sciences Commons^™

In Vitro Evaluation Of The Reciprocating Disposable Prophylaxis Angle Versus The Rotating Disposable Prophylaxis Angle In Extrinsic Stain Removal Effectiveness, Inma Lacross

Dental Hygiene Theses & Dissertations

The purpose of this study was to determine the extrinsic tooth stain removing effectiveness of a 90° counter-rotating disposable prophylaxis angle (DPA) with rubber cup as compared to the traditional 360° unirotational DPA with rubber cup. Four randomly assigned groups of cleaned, sterilized, extracted human teeth, artificially stained with coffee, tea, tobacco, and red wine were polished on the buccal and lingual surfaces using one of the two rubber cup DP As under study. Each dependent variable (four different stain types) was tested four times with each prophylaxis angle, using each of the four prophylaxis paste conditions, and three different …

2004 Jeffress Research Grant Awards

Virginia Journal of Science

List of winners of the 2004 Jeffress Research Grant Awards.

The Effects Of Ultrashort Pulsed Electric Fields On The Fluorescent Molecule Bodipy Fl C5 Ceramide, Rachael Sara Shevin

Electrical & Computer Engineering Theses & Dissertations

Nanosecond pulsed electric fields are able to manipulate internal cell organelles by taking advantage of the small but finite time required for charge to establish across a capacitive barrier. Pulsed electric fields also affect macromolecular structures such as enzymes and proteins. Application of a single nanosecond pulsed electric field decreases the fluorescence of a commercially available biological dye Bodipy FL C₅ Ceramide, used to observe the Golgi apparatus of living cells. The effect is seen when the fluorophore is exposed to an electric field both in vitro and when incorporated into the Golgi of a living Jurkat cell. Observation …

Characterization Of Β-Lactam Resistant Pandemic Serotypes Of Vibrio Cholerae Isolated From Ships' Ballast Tanks And Coastal Waters, Amanda Lynn Goodrich

OES Theses and Dissertations

Vibrio cholerae serotypes 01 and 0139 are responsible for world-wide epidemics of cholera. These pandemic causing strains must possess genes that encode for the cholera toxin (CTX) and toxin co-regulated pili (TCP) in order to infect their hosts. In this study, 284 isolates of Vibrio cholerae from ballast and coastal waters were serotyped, with 11 % testing positive for serotype 01 and 21 % testing positive for serotype 0139. PCR assays were used to detect the presence of ctxA and tcpA genes in all positive isolates, none of which contained ctxA while 2% of the isolates contained tcpA. The 01 …

Detection Of Panulirus Argus Virus 1 (Pav1) In The Caribbean Spiny Lobster Using Fluorescence In Situ Hybridization (Fish), Caiwen Li, Jeffrey D. Shields, Hamish J. Small, Kimberly S. Reece, Carmony L. Hartwig, Roland A. Cooper, Robert E. Ratzlaff

Biological Sciences Faculty Publications

Panulirus argus Virus 1 (PaV1) is the first virus known to be pathogenic to a wild lobster. It infects the Caribbean spiny lobster P. argus from the Florida Keys, and has a predilection for juveniles. The monitoring of the virus in wild populations and study of its behavior in the laboratory require the development of reliable diagnostic tools. A sensitive and specific fluorescence in situ hybridization (FISH) assay was developed for detection of PaV1. The lower detection limit using a 110 bp DNA probe in a dot-blot hybridization for PaV1 DNA was 10 pg of cloned template PaV1 DNA and …

Vital Tooth Whitening: Effects On Tooth Color Satisfaction, Beliefs About Dentofacial Appearance, And Self-Esteem In Older Adults, Kelly Marie Seeber

Dental Hygiene Theses & Dissertations

The purpose of this study was to explore the effects of vital tooth whitening on tooth color satisfaction, beliefs about dentofacial appearance, and self-esteem in a population 50 years of age and older. A two-group, randomized, pre-test, post-test, single-blind design was utilized following !RB-approval. Sixty-two participants were enrolled. Fifty-three participants (N=53) completed the study with no adverse events reported. Both the control and experimental groups received instructions for a threeweek oral self-care regimen, a toothbrush, toothpaste, and floss. The experimental group also received a tooth whitening product (independent variable) to be used during the same three-week period. Dependent variable measures …

An Exploration Of Artists’ Use Of Color, Kate Horn

EVMS School of Health Professions Theses & Dissertations

The use of color creates a varied reaction from person to person within the human experience. Color has been theorized to have many different symbolic meanings. However, no definitive link between color and symbolic meaning has been found. Research about human response to color has been examined in relation to cognitive, psychological, and physiological effects. Within the field of art therapy, color is important for understanding the client’s view. However, the art therapist’s interpretation of client color use may be based on myths perpetrated in the field. In-depth interviews of three professional artists were done in order to explore the …

Gaussian Mixture Models And Neural Networks For Automatic Speaker Identification, Usha Gayatri Chalkapally

Electrical & Computer Engineering Theses & Dissertations

Automatic Speaker Recognition is the process of automatically recognizing who is speaking on the basis of individual information contained in speech signals. This technique of Automatic Speaker Recognition makes it possible to use the speaker's voice to verify their identity and control access to services such as voice dialing, banking by telephone, telephone shopping, database access services, information services, voice mail, security control for confidential information areas, and remote access to computers.

In this thesis, the techniques of Gaussian Mixture Models and Neural Networks for Automatic Speaker Identification are presented. Algorithms for Speaker Identification using Gaussian Mixture Models were developed, …

Bacillus Anthracis Virulent Plasmid Px02 Genes Found In Large Plasmids Of Two Other Bacillus Species, Vicki A. Luna, Debra S. King, K. Kealy Peak, Frank Reeves, Lea Heberlein-Larson, William Veguilla, L. Heller, Kathleen E. Duncan, Andrew C. Cannons, Philip Amuso, Jacqueline Cattani

Bioelectrics Publications

In order to cause the disease anthrax, Bacillus anthracis requires two plasmids, pX01 and pX02, which carry toxin and capsule genes, respectively, that are used as genetic targets in the laboratory detection of the bacterium. Clinical, forensic, and environmental samples that test positive by PCR protocols established by the Centers for Disease Control and Prevention for B. anthracis are considered to be potentially B. anthracis until confirmed by culture and a secondary battery of tests. We report the presence of 10 genes (acpA, capA, capB, capC, capR, capD, IS1627, ORF 48, ORF 61, and repA) and the sequence for the …

Effects Of Daily Oral Care With 0.12% Chlorhexidine Gluconate And A Standard Oral Care Protocol On The Development Of Nosocomial Pneumonia In Intubated Patients: A Pilot Study, Michelle Bopp, Michele Darby, Karin C. Loftin, Sharon Broscious

Dental Hygiene Faculty Publications

Purpose. The purpose of this pilot study was to determine if a difference existed between nosocomial pneumonia rates for intubated critical care unit (CCU) patients who received twice-daily oral hygiene care with 0.12% chlorhexidine gluconate and those who received the standard oral care. Methods. Over seven months (February to August), CCU patients were identified through screening and informed consent procedures, and randomized into 1 of 2 groups. Over the 7 months, due to the critically ill nature of the patients, only 5 subjects were enrolled. While in the study, twice-daily oral hygiene care consisted of brushing the cheeks, teeth, and …

Temporal Calcium Response Of Jurkat Cells To Nanosecond Pulsed Electric Fields, Shaka Shakar Scarlett

Electrical & Computer Engineering Theses & Dissertations

Nanosecond pulsed electric fields (nsPEF) of megavolt per meter field strengths can interact with subcellular structures [1] and consequently trigger a variety of biological events. The exposure can induce apoptosis, as well as an array of differential "sub-lethal effects." One of the most sensitive and immediate responses is the increase in intracellular calcium concentration in pulsed cells [2], [3][4].We investigated the response of Jurkat cells (a human leukemic cell line) to nsPEFs of 60 ns duration and field strengths from 25 tol00 kV/cm. The development of the induced calcium response in individual cells was studied by spinning-disc confocal microscopy with …

Dietary Supplements And Sports Performance: Herbals, Melvin H. Williams

Human Movement Studies & Special Education Faculty Publications

This is the fourth in a series of six articles to discuss the major classes of dietary supplements (vitamins; minerals; amino acids; herbs or botanicals; metabolites, constituents/extracts, or combinations). The major focus is on efficacy of such dietary supplements to enhance exercise or sport performance.

Posttraumatic Stress Disorder And Art Making, Kelly Andrews

EVMS School of Health Professions Theses & Dissertations

Over the course of history war has brought death and destruction to the men and women who have had to partake in combat. Through advances in technology more soldiers are able to return home alive, however they are not always physically or mentally intact. There are a large number of men and women returning home from the current conflict in the Middle East with increased Posttraumatic Stress Disorder symptoms. Those who return home as amputees will most likely have amplified PTSD symptoms as they are not only returning home with mental scars, but physical wounds.

The psychological impact of war …

Evaluation Of Toxicity Following Electrically Mediated Interleukin-12 Gene Delivery In A B16 Mouse Melanoma Model, Loree Heller, Kathleen Merkler, Jeffrey Westover, Yolmari Cruz, Domenico Coppola, Kaaron Benson, Adil Daud, Richard Heller

Bioelectrics Publications

PURPOSE: Interleukin-12 (IL-12) has potential as an immunotherapeutic agent for the treatment of cancer but is unfortunately associated with toxicity. Delivery of a plasmid encoding IL-12 with electroporation induces an antitumor effect in the B16 mouse melanoma model without serious side effects. To translate this observation to the clinic, an evaluation of toxicity was done in the mouse model.

EXPERIMENTAL DESIGN: Weight change, tumor response, blood chemistry and hematology values, and serum IL-12 levels were evaluated. Multiple tissues were analyzed histopathologically.

RESULTS: A pronounced reduction in tumor volume, including a large percentage of complete regressions, was observed after electrically mediated …

Art Therapy With Adults With Autism, Kimberly Dennler

EVMS School of Health Professions Theses & Dissertations

Research regarding art therapy with adults with autism is limited. The objective of this study was to understand the effect of a specific art therapy intervention upon social interaction and communication of the adults with autism. The hypothesis was that by participating in this intervention, the participants’ communication and socialization would increase and their maladaptive behaviors would decrease. Over a series of nine sessions, the five participants from Bittersweet Farms were introduced to basic techniques for working with clay.

Results were based on qualitative analysis of data from staff surveys, through the use of pre and post questionnaires; observations made …

Color In Children’S Human Figure Drawings, Melanie Metelsky

EVMS School of Health Professions Theses & Dissertations

Color is an important part of our everyday lives and its use in art-based assessment is theorized to relate to aspects of emotional, cognitive, social, and physical development. The Human Figure Drawing (HFD) is a highly utilized projective technique that is also theorized to be related to these areas of development. However, there is little research regarding the use of color in HFDs, particularly in respect to children’s drawings.

This study explored whether or not there is a relationship between children’s age and their use of color in the HFD. This is important to art therapists and other clinicians in …

Implications For Using Transpersonal Art Therapy With African Americans, Robin Coley Wooling

EVMS School of Health Professions Theses & Dissertations

Very little art therapy literature on racial and cultural themes exists. The purpose of this study was to expand on the literature that explores the use of art therapy with African Americans. The goal of this study was to determine if transpersonal art therapy would be an appropriate modality for working with African Americans.

Interaction with art materials, especially among adults, seems to be universal. Adults are initially nervous about their artistic abilities, but once at ease, are able to communicate their thoughts and feelings using the art media. In this study, the workshop participants’ reactions to using art materials …

The Effects Of Music On Art Making With Older Adults, Gertrude W. Goodwin

EVMS School of Health Professions Theses & Dissertations

It is projected that by 2030, older adults will make up 69.4 million of the population in the United States (U.S. Bureau of the Census, 2001). The basic physical, mental, and emotional needs of these older adults must be addressed to ensure an adequate quality of life. Quality of life refers to the degree needs are being met as well as the person’s perception and satisfaction with life. As the population ages there is an increased expectation for a higher quality of life because older adults are healthier, more active, and living longer. The therapeutic use of art and music …

Art Therapy And Sensory Stimulation To Decrease Agitation: A Pilot Study, Leslie Cristen Lavergne

EVMS School of Health Professions Theses & Dissertations

Dementia affects 1% of older adults in America between the ages of 65 and 74 years, and increases to 10% in those 85 years and older. The cognitive and behavioral symptoms of dementia may restrict an individuals ability to perform activities of daily living, such as self-care, memory, and language. The literature supports the premise that individuals who have dementia can benefit from a treatment approach that focuses on medication regulation, as well as mental stimulation. This study was an art therapy and sensory stimulation intervention designed to reduce agitation, a common non-cognitive symptom of dementia. This study included five …

Professional Outcomes Of Eastern Virginia Medical School Art Therapy Graduates, Heather Tyng

EVMS School of Health Professions Theses & Dissertations

In 1982, Eastern Virginia Medical School (EVMS) awarded the first art therapy graduate with a Master’s Degree. Since then there have been 202 graduates through 2004.

The EVMS art therapy program has had no detailed or current information regarding the professional outcomes of its alumni. This lack of information created a need to survey EVMS art therapy graduates to determine how their careers have progressed to this point.

A survey was designed to investigate the professional outcomes of the EVMS art therapy alumni and to determine their opinions of the strengths and weaknesses of the EVMS art therapy curriculum. Of …

Perceptions Of Art Therapy As Portrayed Through The Media, Heidi Torres

EVMS School of Health Professions Theses & Dissertations

The purpose of this study was to understand the perception of art therapy as portrayed through the media. Two studies were conducted with two facilitated via online surveys and one focus group. All participants were college students from Eastern Virginia Medical School and Old Dominion University. A sample of 14 volunteers participated. It was hypothesized that adolescents from both groups would use art as an effective and desirable means of personal communication and expression.

Results are based on qualitative analysis of data from two questionnaires, pre and post, which included perceptions toward art therapy prior to viewing media sources and …

Art Therapists’ Response To Countertransference: An Exploratory Study, Rachael Smith

EVMS School of Health Professions Theses & Dissertations

This qualitative study explored five practicing art therapists’ common countertransferential reactions and the methods used to attend to their countertransference. Data was collected by recorded interviews, which were reviewed and transcribed using the note-and-quote method. The content was analyzed according to theoretical constructs of The Countertransference Questionnaire, Index of Countertransference Behaviors, and Racker (1968). Disengaged countertransferential reactions were reported most often, followed by special/overinvolved and helpless/inadequate. The researcher found art making a valuable tool for proper identification of countertransference. Themes of decreasing the intensity of countertransference and personal/professional development were motivations for attending to countertransference. This study suggests that identifying …

Stress Management Through Art-Making, Karina Schwarz

EVMS School of Health Professions Theses & Dissertations

Stress is a natural and necessary part of everyday existence; the symptoms related to stress are unavoidable and systemic (Frey, 2001). Acute and chronic stress can adversely affect individuals both physically and emotionally. The literature gives evidence that medical school students are not provided with the adequate tools needed to cope with stress. This study was an art-making intervention designed to decrease stress among medical students. There were 24 participants, 19 women and 5 men enrolled in the Doctor of Medicine program at Eastern Virginia Medical School. The participants completed the Perceived Stress Scale (PSS) to measure their levels of …

An Investigation Into The Coming-Out Experience For Families Of Homosexuals: Understanding Through Personal Artmaking And Dialogue, Micah Bennett

EVMS School of Health Professions Theses & Dissertations

A review of the literature indicated the lack of art therapy research with homosexuals and their families. The need for research into the implications for the use of art processes and materials to assist in the coming-out process of families of self-disclosed homosexuals was established. A qualitative hermeneutic method of research was initially proposed to study this need. Volunteer participants who were parents or adult relatives of self-disclosed homosexuals would participate in an audio-videotaped workshop to include three art-making exercises intended to evoke expressions of the participants’ experiences of the coming-out process. Data would have consisted of the researcher’s written …

The Healing Potential Of Art: A Psychobiographical Study Of Three Artists, Amy Reahard

EVMS School of Health Professions Theses & Dissertations

The statement that art in itself is healing may not always be true as demonstrated by the destructive, often short lives of many artists. This may appear to contradict the fundamental belief, held by many art therapists, that art is healing. Studying the fields of creativity and art history could help understand this apparent contradiction.

One way to combine the studies of creativity, the healing power of art, and art history is through the practice of psychobiography. The psychobiographer who studies the life of a prominent artist combines various psychological approaches with the literary records, art history, and visual evidence …

Characteristics Of Human Figure Drawings Created By Students With Learning Disabilities, Monika L. Isip

EVMS School of Health Professions Theses & Dissertations

Previous research concerning the artistic indicators of learning disabilities has yielded inconsistent results. Children with learning disabilities comprise a heterogeneous population, with diverse strengths and challenges. There has been a lack of research on the graphic indicators of learning disabilities, which takes this diversity into account. This study aimed at exploring the characteristics of Human Figure Drawings (HFDs) created by students with learning disabilities.

The study examined the HFDs of 2 Virginia Beach Public School 2nd graders who were identified by their parents as having learning disabilities; one child’s disability was described as being a decoding deficit and the other …

The Study Of Nitric Oxide Synthase Expression, Function, And Regulation In The Renal Vasculature During Postnatal Renal Development, Brian Blake Ratliff

Theses and Dissertations in Biomedical Sciences

The newborn kidney is vulnerable to vasomotor acute renal failure (ARF) from adverse perinatal events or complications of prematurity. Nitric oxide (NO) vasodilation is vitally protective in this type of ARF, but its relationship with other vasoactive factors, such as angiotensin II (AII) has not been examined. In the immature kidney, nitric oxide synthase (NOS) isoforms, specifically eNOS and nNOS, are developmentally regulated, but their specific role and regulation are unknown.

The enhanced vasodilatory role of NO in the immature kidney was hypothesized to be attributed to regulatory, expressional, and functional differences in eNOS and nNOS isoforms from the adult. …

Traumatic Experiences Contributing To Juvenile Delinquency: A Look At Gender Differences, Alexis L. Correia

Sociology & Criminal Justice Theses & Dissertations

This study investigates the following two research questions: To what extent, if any, do traumatic experiences contribute to juvenile delinquency? To what extent, if any, does gender affect the relationship between trauma and juvenile delinquency? The extent of trauma was reviewed to include various studies relating to the impact trauma has on juveniles. Robert Agnew's General Strain Theory provided support for the differences that exist between males and females when it comes to trauma contributing to juvenile delinquency. Gender differences in emotional response to strain were reviewed, focusing on post-traumatic stress disorder (PTSD). The data that provided support for the …

A Framework For The Representation Of Cohesion In Small Combat Units, William Eugene Warner

Computational Modeling & Simulation Engineering Theses & Dissertations

Current combat simulations deal well with large unit formations, weapon systems, and physical effects such as attrition. Human factors such as morale, cohesion, and effects of stress are modeled much less adequately. Of the human factors affecting the psychology of a combat unit, military psychologists have identified cohesion as one of the most important. The concept of cohesion, referring to both the interpersonal relationships between soldiers in a military unit and to the morale solidarity of a military force, has been central to military analysis for many years.

A model framework has been developed that can operationalize the concept of …

Effectiveness Of Chlorhexidine-Coating In Controlling Bacterial Quantity On Toothbrush Filaments, Lisa A. Turner

Dental Hygiene Theses & Dissertations

The purpose of this study was to determine if a significant difference exists in the effectiveness· of chlorhexidine-coated nylon brush filaments as compared to uncoated nylon filaments in reducing the quantity of bacteria. Methods: An IRB-approved, two-group, double-blind, randomized, post-test only design was conducted. Sixty-four individuals were randomly assigned to two equal groups of 32. After using the control or experimental toothbrushes for 30-days, participants returned the toothbrushes to the researchers in sealed autoclave bags. In the laboratory, microorganisms were detached from the toothbrush filaments by sonification and vortexing, then plated on both selective and non-selective media at various dilutions …