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Changes In Caloric Content As A Result Of Sub-Lethal Stress In Neanthes Virens (Sars), Phyllis J. Friello

Biological Sciences Theses & Dissertations

Neanthes virens were subjected to a toxicity test with 1.8, 3.4, 6.7 and 11.0 mg/1 Cd²⁺. Worms were withdrawn on Days 1, 4, 7, 10 and 14 from each of five replicate tanks and their caloric content determined by bomb calorimetry. Analyses of variance and covariance showed no significant differences in worm caloric content with withdrawal day or cadmium concentration.

In a second experimental series, a sediment toxicity test with Neanthes virens was conducted in contaminated sediments from two sites, as well as reference sediments from a control site. Caloric content of the worms was measured by bomb …

An Assessment Of The Characteristics And Attrition Rates Of Physical Therapist Assistant Educational Programs, Pamela Ann Bayliss

Community & Environmental Health Theses & Dissertations

The purpose of this study was to determine the student attrition rate in physical therapist assistant programs accredited by the American Physical Therapy Association (APTA) at the time of the study and to identify factors which may affect student attrition. The survey instrument was designed to gather data on student attrition rates for the classes which graduated in 1984, 1985, and 1986 and on program characteristics such as admission policies and curricular requirements. The mean student attrition rates were 32%, 28.6%, and 26.4% in 1984, 1985 and 1986, respectively. There were no significant differences identified via Chi Square (p

The Effects Of Life Stress And Risk-Taking Style On Risk Perception And Driver Performance, Christine B. Philput

Psychology Theses & Dissertations

This study examined the effects of risk-taking style, stress level, and highway environment on driver performance. In Phase I, 50 subjects were assessed for risk-taking style and stress level. In Phase II, the same subjects were presented with slides of traffic situations that varied in terms of risk of accident. This was a paired comparison task in which they rank-ordered ten highway sites, producing a measure of subjective risk. No significant relationships were identified between these subjective risk judgments and objective data regarding those sites (accidents and fatalities), though this is most likely due to problems with the slide presentation. …

Reducing Stress Of Inservice Teachers, Jeffrey R. Curley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A prototype treatment developed to significantly reduce symptoms of stress among inservice teachers was tested in this experiment. Thirty participants selected for high stress levels were randomly assigned to treatment and control groups. They were assessed on environmental, personality, and emotional variables, using self-report and expert-judge measures, both pre- and posttreatment. The experimental treatment was holistic, incorporating all processes previously found to be related to reducing teacher stress. At posttreatment, the treatment group averaged 1.02 standard deviations lower on the stress measures than the control group. Significant differences in the posttest means, favoring the experimental group, were found for 23 …

Effects Of Estrogen And Progesterone On Tolerance To Thermal Stress, Kris Alan Lyon

UNLV Retrospective Theses & Dissertations

Analysis of variance showed that female Harlan Sprague-Dawley rats treated with E in combination with P (EP) had a significantly higher rectal temperature (Tre) than untreated control animals and those treated with E or P alone. In E treated rats, Tre was significantly higher than control animals and those treated with P; All treatment groups had a significantly lower tail skin temperature as compared to the control animals. The rise in Tre in E and EP treated rats did not appear to result from an increase in metabolism since the rates of oxygen consumption did not differ significantly with hormone …

Occupational And Life Stress In Nursing: Is There A Relationship?, Christopher Billam

Theses : Honours

A population of two hundred and twenty nurses involved in direct patient care in a regional hospital were surveyed to assess if a relationship exists between occupational and life stress. A cross sectional survey design was used. The questionnaire contained four distinct categories: demographic information, Nurses' Stress Scale, a Life Events Inventory and a social support scale. A return rate of 49.5% was obtained, and several completed questionnaires were rejected, leaving the data from 1.04 questionnaires to be analysed. The nurses in this population reported low scores tor both occupational and life stress. However, the instrument used to calculate the …

Relieving Strain In Informal Caregivers Of The Elderly, Roberta Louise Babbage

Theses Digitization Project

No abstract provided.