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The Effects Of Different Types Of Noise On Human Heart Rate, Jose R. Fabregas

Theses

In an industrial environment, chronic noise exposure is assumed to affect human heart rate. If this is true, people who are more sensitive to noise will run a higher risk of incurring cardiovascular diseases.

Sixteen healthy experimental subjects, all with normal hearing, eight males and eight females, were exposed to five different types of pink and white noise at 60, 70, 80, and 85 dBA in order to determine if any relationship exists between the heart rate and sex. Each individual was exposed for a maximum of thirty seconds for each type and level of noise. Audiometric tests were given …

Detection Of Trypanosome Infections In The Saliva Of Tsetse Flies And Buffy-Coat Samples From Antigenaemic But Aparasitaemic Cattle, P. A.O. Majiwa, R. Thatthi, S. K. Moloo, J. H.P. Nyeko

All Peer-Reviewed Publications

Relatively simple protocols employing non-radioactive DNA probes have been used for the detection of African trypano-somes in the blood of mammalian hosts and the saliva of live tsetse flies. In combination with the polymerase chain reaction (PCR), the protocols revealed trypanosomes in buffy-coat samples from antigenaemic but aparasitaemic cattle and in the saliva of live, infected tsetse flies. Furthermore, the protocols were used to demonstrate concurrent natural infections of single tsetse flies with different species of African trypanosomes. © 1994, Cambridge University Press. All rights reserved.

Detection Of Human Papillomavirus Dna Sequences In Oral Squamous Papillomas, Thun Jano Martha Von

Master's Theses

No abstract provided.

Comparison Of Preparation In Simulated Curved Canals Using Two Types Of Nickel-Titanium Instruments And Hand Instrumentation, Mary Ann Ellenz Campbell

Master's Theses

No abstract provided.

Sem Evaluation Of Margin Geometry And Roughness From Instrumentation Of Extracted Natural Teeth, Hsing-Fu Lin

Master's Theses

No abstract provided.

Chemical Modification Of The Dentin Smeared Layer, Frank A. Cincione

Master's Theses

No abstract provided.

Two Dimensional Force Measurements During Extrusive Tooth Movements, Maria Catherine Haas

Master's Theses

No abstract provided.

An Investigation Of The Relationship Of Dental Implants To Diet And General Health, Linda M. Weinfield

Master's Theses

No abstract provided.

The Insertional Attachment Of The Superior Head Of The Lateral Pterygoid Muscle To The Temporomandibular Joint Components In Humans: An Anatomic Investigation, Thomas Otto Dusek

Master's Theses

No abstract provided.

An Anatomical Study Of The Maxillary Nerve Block Via The Greater Palatine Canal, Donald A. Miller

Master's Theses

No abstract provided.

Integrative Theories Of Medicine: A (W)Holistic Vision, Kathryn B. Forestal

Master's Theses

No abstract provided.

Enhanced Immunogenicity Of Protein-Dextran Conjugates: I. Rapid Stimulation Of Enhanced Antibody Responses To Poorly Immunogenic Molecules, Andrew Lees, Fred Finkelman, John K. Inman, Kim Witherspoon, Penny Johnson, Jasiri Kennedy, James J. Mond

Microbiology, Immunology, and Molecular Genetics Faculty Publications

In view of our observation that anti-immunoglobulin antibody conjugated to high-molecular-weight dextran stimulates high levels of B-cell activation (Brunswick et al. J. Immunol . 1989, 143, 1239), we coupled T cell-dependent antigens to dextran. When mice were immunized, in the absence of adjuvant, with a BSA-dextran conjugate (BSA-dex), a persistent, high-titre anti-BSA IgG1 response was induced. Titres were dose-dependent and seen with as little as 10 I~g of conjugated protein. Anti-BSA titres were detected as early as day 7, usually peaked at about day 14 and persisted for at least 4 weeks. Anti-hapten antibodies were also elicited in mice that …

Partnership For Prevention: A Report Of A Meeting Between Women's Health Advocates, Program Planners, And Scientists, Population Council

Reproductive Health

In May 1994, the Population Council, in conjunction with the Pacific Institute for Women's Health and the International Women's Health Coalition, hosted a meeting for women's health advocates from around the world to discuss the development of microbicides. This process was the first step in building greater understanding and mutual respect among women's health advocates and Population Council staff and scientists with regard to the technology of microbicides. Participants hoped that the recommendations resulting from this initiative would have a positive influence not only on the development of microbicides, but on all reproductive health technologies. This report aims to reproduce …

Localisation And Detection Of A Polymorphism In The Human Skeletal Beta-Tropomyosin Gene (Tpm2), Clive C.J. Hunt

Theses : Honours

Tropomyosin is one of the components of the thin filaments of muscle, binding to actin, and, together with troponin, regulating contraction in a calcium-dependent manner (Cho et al.,1990). There are at least four distinct tropomyosin genes in vertebrates and each may encode at least six different isoforms of tropomyosin by alternate splicing (Novy et al, 1993; MacLeod et al., 1988). The alpha-tropomyosin gene TPM1 has recently been localised to 15q22 (Eyre et al, 1994) and has been shown to be mutated in some cases of familial hypertrophic cardiomyopathy (Thierfelder et al., 1994). The alpha-tropomyosin gene TPM3 has been recently localised …

Mesure Des Contaminants Chimiques Et Biologiques Dans L'Air D'Une Porcherie Utilisant La Technique De Litière Biomaîtrisée, Jacques Lavoie, Geneviève Marchand, Yves Beaudet, Brigitte Roberge, Hortense Fournier, Paul Caouette, Jean-Yves Drolet, Gaétan Gingras, Charles Jobin

Rapports de recherche scientifique

Les méthodes habituellement utilisées dans l'élevage du porc exposent les éleveurs à des concentrations élevées de microorganismes, de poussières organiques et à des gaz, tous soupçonnés d'être la cause de plusieurs problèmes de santé. Les ministères de l'agriculture et de l'environnement du Québec via les consultants BPR ont mis à l'essai une nouvelle méthode d'élevage pour les porcs afin de contrôler les contaminants chimiques, biologiques et les odeurs. II s'agit de l'élevage sur litière biomaîtrisée, i.e. une litière composée d'un mélange de déjections solides et liquides, de sciures de bois ou de paille et d'une enzyme issue de la biotechnologie. …

Outlook Magazine, Summer 1994

Outlook Magazine

No abstract provided.

Outlook Magazine, Winter 1994

Outlook Magazine

No abstract provided.

Laccase Production By Chaetomium Elatum, A Soft-Rot Fungus, Wilson H. Howe, Joyce M. Hardin

Journal of the Arkansas Academy of Science

Though enzymes responsible for rotting wood have been studied for some time, the enzymes and enzymatic systems responsible for breaking down lignin have only begun to be discovered. The lignin-degrading enzymes produced by soft-rot fungi, in particular, have not been sufficiently studied. The present study presents evidence that the enzyme called laccase, known to be associated with lignin biodegradation, is produced by the species Chaetomium elatum, a soft-rot fungus. Cerrena unicolor, a positive control, and Chaetomium elatum were grown in culture. These species were tested for the presence of laccase using syringaldazine as a chromogenic substrate. As expected, Cerrena unicolor …

Use Of Visual And Tactile Behaviors By Rats (Rattus Norvegicus) In An Object Discrimination Swimming Task, Todd Wiebers

Journal of the Arkansas Academy of Science

When challenged with a cognitive task, rats demonstrate a behavioral flexibility in use and preference of sensory modalities. The present study describes visual and tactile behaviors used by rats in a two choice object discrimination swimming task. The task was designed to preclude use of other sensory modalities and could not be solved via spatial strategies. Fourteen rats learned to criterion a series of 10 discrimination problems. Rats exhibited three stereotypic visual and two stereotypic tactile behaviors over the course of the study. Data analyses indicated that rats demonstrated these behaviors more frequently as they became more familiar with the …

Isolation Of Borrelia Burgdorferi From Infected Laboratory Mice, Lawrence W. Hinck, Kim Kelly Simpson, Sherlita N. Reeves

Journal of the Arkansas Academy of Science

No abstract provided.

A Comparison Of Two Bathing Methods : Effects On The Haemodynamic And Subjective Responses Of Low Risk Patients Within 48 Hours Post Myocardial Infarction, Heather M. Kidd

Theses: Doctorates and Masters

The purpose of this within subject experimental study was to determine what effect showering by nurses, as compared to bed bathing patients, has on the haemodynamic and subjective responses of low risk patients within 48 hours of having a myocardial infarction. The sample consisted of 50 patients, 8 female and 42 male, with a mean age of 61 years (SD = 10). Twenty-five were randomly assigned to a bed bath, then a shower over 2 consecutive days and the other 25 to the reverse order. The haemodynamic responses consisted of heart rate, rate pressure product (RPP), blood pressure, cardiac rhythm, …

Questioning Strategies: Their Use By Clinical Teachers, Sue Sellappah

Theses: Doctorates and Masters

This study examined clinical teachers' use of questioning and the variations in their use of questioning as a teaching strategy. By using questioning and other appropriate teaching strategies, clinical teachers can facilitate the development of critical thinking, decision making, and problem solving in students. Effective use of questioning strategies involves asking low level and high level questions to facilitate recall of classroom knowledge and promote application of the knowledge to solve patient problems in varying clinical situations. Using a comparative descriptive design, this study used a convenience sample of 26 clinical teachers from one University School of Nursing to examine …

Predictors, Patterns And Levels Of Stress Amongst Group Workers In Community Support Units For Adolescents, Alan Lee

Theses: Doctorates and Masters

This study sets out to determine the patterns, predictors and levels of stress amongst forty two groupworkers employed as care givers in five community based support units known commonly as hostels for troubled and troublesome adolescents. To establish and fully assess work related stress amongst groupworkers, it was necessary to capture not only results from questionnaires, but also individual perceptions of stress. To accomplish this, groupworkers were invited to discuss the topic further in face to face interviews upon completion of the questionnaires. Particular themes emergert from the results that reflect some of the concerns held by the author prior …

The Experience Of Transferring To Adult Health Care For Adolescents With Cystic Fibrosis, Maree T. Russell

Theses: Doctorates and Masters

As a result of improved treatment and management, adolescents with cystic fibrosis (CF) now have a longer life expectancy. Consequently, more adolescents will be transferred from paediatric to adult health care. Currently, transfer to adult health care takes place on an adhoc basis. Little research however, is available on adolescents with CF and the transfer process to adult health care. This transfer may be viewed as a significant life event for these adolescents and their families. A descriptive approach was used in this study to investigate the experience of transferring to adult health care for adolescents with CF. Seven adolescents …

Securing Health Or Just Health Care? The Effect Of The Health Care System On The Health Of America, Lawrence O. Gostin

Georgetown Law Faculty Publications and Other Works

The author first analyzes why the prevention of illness and promotion of health provide the leading justification for the government to act for the welfare of the population. His analysis focuses principally on the foundational importance of health for human happiness, the exercise of rights and privileges, and the formation of family and social relationships. He explains why health care, although critically important; is not the only, nor even the most important, determinant of health. Most morbidity and mortality in the United States is attributable to environmental conditions, pathogens, and human behavior, which are all more responsive to population-based interventions …

Cooperative Binding Of Ets-1 And Core Binding Factor To Dna., David Wotton, Jacques Ghysdael, Shuwen Wang, Nancy A. Speck, Michael J. Owen

Dartmouth Scholarship

Two phorbol ester-inducible elements (beta E2 and beta E3) within the human T-cell receptor beta gene enhancer each contain consensus binding sites for the Ets and core binding factor (CBF) transcription factor families. Recombinant Ets-1 and purified CBF bound individually to beta E2 and beta E3, in which the Ets and core sites are directly adjacent. In this report, we show that CBF and Ets-1 bind together to beta E2 and beta E3 and that Ets-1-CBF-DNA complexes are favored over the binding of either protein alone to beta E2. Formation of Ets-1-CBF-DNA complexes increased the affinity of Ets-1-DNA interactions and …

An Analysis Of Mitochondrial Dna In Rett Syndrome And Other Neurodegenerative Disorders, Catherine Erickson Burgess

Theses and Dissertations in Biomedical Sciences

Mitochondrial dysfunction resulting from mutations on mitochondrial DNA (mtDNA) is being recognized in a growing spectrum of diseases. These diseases, resulting from single base mutations, large deletions, or insertions, have been largely neuromuscular in origin. However, as an understanding of the effects of mtDNA mutations progresses, attention is now focusing on neurodegenerative diseases. Rett Syndrome (RS), a progressive neurodegenerative disease with predominantly female cases, demonstrates morphologic mitochondrial changes, mitochondrial enzyme deficiencies and maternal inheritance (characteristic of mtDNA diseases). No investigation of mtDNA involvement has been previously conducted and, to date, no biological marker exists for this disorder.

Our preliminary studies …

Pcm-1, A 228-Kd Centrosome Autoantigen With A Distinct Cell Cycle Distribution, Ron Balczon, Liming Bao, Warren E. Zimmer

University Faculty and Staff Publications

We report the identification and primary sequence of PCM-1, a 228-kD centrosomal protein that exhibits a distinct cell cycle-dependent association with the centrosome complex. Immunofluorescence microscopy using antibodies against recombinant PCM-1 demonstrated that PCM-1 is tightly associated with the centrosome complex through G1, S, and a portion of G2. However, late in G2, as cells prepare for mitosis, PCM-1 dissociates from the centrosome and then remains dispersed throughout the cell during mitosis before re-associating with the centrosomes in the G1 phase progeny cells. These results demonstrate that the pericentriolar material is a dynamic substance whose composition can fluctuate during the …

Modulation Of The Humoral Immune Response By The Sympathetic Nervous System, Tracey Lynn Spriggs

Theses and Dissertations

The immune system is critical for the maintenance of homeostasis. Due to the fact that a coordinated effort between organ systems is required for internal stability, it has been postulated that the immune system interacts with the neuroendocrine system. Clinical, anatomical, and receptor studies have provided evidence for a bi-directional communication between the nervous and immune systems. The goal of the present studies was to determine the potential influence of the sympathetic nervous system (SNS) on the primary antibody forming cell (AFC) response.

The adrenergic neurotoxin, 6-hydroxydopamine (6-OHDA), has been utilized extensively by researchers to explore the possible relationship between …

Comparisons Of Performance On The Short Form Of The Bruininks-Oseretsky Test Of Motor Proficiency Between 14-Year-Old Children And 18 To 24-Year-Old Adults, Jenny Eshleman, Elizabeth Michmershuizen, Jennifer Zackrison

Masters Theses

The purpose of this study was to determine the need for normative data for adults on the Bruininks-Oseretsky Test of Motor Proficiency (BOTMP). This was determined by finding differences in performance between the 18 to 24-year-old adults from this study and the 14-year-olds from the original study.; A sample of 33 females and 30 males were administered the Short Form (SF) of the BOTMP. Mean scores and standard deviations were computed from the raw scores of the subjects. These values were compared by t-test among the subjects of this study, and to the original sample of 14-year old children. The …