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Theses and Dissertations

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Selection Of Psychophysiological Features Across Subjects For Classifying Workload Using Artificial Neural Networks, Trevor I. Laine Mar 1999

Selection Of Psychophysiological Features Across Subjects For Classifying Workload Using Artificial Neural Networks, Trevor I. Laine

Theses and Dissertations

The issue of pilot workload is important to the United States Air Force because pilot overload or task saturation leads to decreases in mission effectiveness. Additionally, in the most extreme cases, pilot overload may lead to the loss of aircraft and crewmember lives. Current research efforts are utilizing psychophysiological data including electroencephalography (EEG), cardiac, eye-blink, and respiration measures in an attempt to identify workload levels. The primary focus of this effort is to determine if a single parsimonious set of psychophysiological features exists for accurately classifying workload levels between multiple test subjects. To accomplish this objective, the signal-to-noise (SNR) saliency …


Temporally Regulated Gene Expression In The Embryonic Rat Thoracic Spinal Cord., Wendy Chrystine Perryman Feb 1999

Temporally Regulated Gene Expression In The Embryonic Rat Thoracic Spinal Cord., Wendy Chrystine Perryman

Theses and Dissertations

Recent experimental approaches to the study of gene expression in the developing spinal cord have demonstrated the presence of neurotransmitters, growth factors and guidance cues that appear either at discrete times early in development or for extended periods of time throughout prenatal development and even into the postnatal period. Based on morphologic observations we have made previously in the developing rat thoracic spinal cord, the present study is designed to identify genes in the embryonic spinal cord that are expressed at very discrete developmental time points late in embryonic development. Our hypothesis is that previously unknown genes expressed at discrete …


Metastatic Potential And Resistance To Oxidative Stress In Nb2 Lymphoma Cell., Hanqian Liang Feb 1999

Metastatic Potential And Resistance To Oxidative Stress In Nb2 Lymphoma Cell., Hanqian Liang

Theses and Dissertations

Malignant cancers typically become more aggressive with time. This process, termed tumor or malignant progression, is associated with phenotypic changes within the tumor, such as loss of dependence upon growth factors or hormones, development of drug resistance, tissue invasiveness and metastatic ability. The observation of differences in levels of glutathione (GSH) and related enzymes, resistance to activation of apoptosis, and induction of transcription factors suggest that (1) oncogenic progression from growth factor dependency to autonomy in the Nb2 lymphoma cell model is associated with adaptive changes in the redox state of the cell and that these changes potentiate or facilitate …


Cultural Influences On Body Image Perception Of Native American Women., Melody Lafriniere Feb 1999

Cultural Influences On Body Image Perception Of Native American Women., Melody Lafriniere

Theses and Dissertations

Although cultural influences are gaining increased recognition in research in many areas, few studies have considered cultural influences on body image perception. Similarly, literature addressing the issues of American Indian women is lacking. Very little research considers the cultural influence on body image perception of American Indian women.This project considers the influences of culture as it relates to an American Indian woman's perception of her body image. Eighty-four American Indian women, enrolled as students at a small Midwestern university participated in this study to determine their body image perception according to Cash's Multidimensional Body-Self Questionnaire, and the influences of their …


Effect On Length Of Stay And Side Effects Experienced Following Prophylactic Use Of Droperidol Versus Ondansetron, Kory M. Albert Jan 1999

Effect On Length Of Stay And Side Effects Experienced Following Prophylactic Use Of Droperidol Versus Ondansetron, Kory M. Albert

Theses and Dissertations

No abstract provided.


Endogenous Yolk Steroids In Five Species Of Turtles : A Comparison Between Sex Determination Mechanisms, Scott V. Gerum Jan 1999

Endogenous Yolk Steroids In Five Species Of Turtles : A Comparison Between Sex Determination Mechanisms, Scott V. Gerum

Theses and Dissertations

No abstract provided.


American Indian Population With Type 2 Diabetes : Evaluation Of A Foot-Care Program, Bonita F. Conner Jan 1999

American Indian Population With Type 2 Diabetes : Evaluation Of A Foot-Care Program, Bonita F. Conner

Theses and Dissertations

No abstract provided.


Characterization Of Rat Pulmonary Carboxylesterase, Timothy J. Wallace Jan 1999

Characterization Of Rat Pulmonary Carboxylesterase, Timothy J. Wallace

Theses and Dissertations

The 1839 bp cDNA for rat pulmonary carboxylesterase was cloned by reverse transcription polymerase chain reaction (RT PCR) from total rat lung RNA using specific primers derived from the 5' and 3' untranslated regions of rat hepatic cholesteryl ester hydrolase (CEH). The unique cDNA was sequenced and found to have 99% homology with hepatic CEH. This homology extends to the predicted amino acid sequences which show only six amino acid residue differences in the coding region: three conserved and three nonconserved changes. However, the catalytic activitites of the two proteins are dramatically different. While CEH hydrolyzes cholesterol oleate, the pulmonary …


In-Situ Measurement Of Denitrification In The Elk Valley Aquifer, Allen Schlag Jan 1999

In-Situ Measurement Of Denitrification In The Elk Valley Aquifer, Allen Schlag

Theses and Dissertations

Groundwater serves more than half of North Dakota's population as a drinking water source. Nitrate (NO₃¯) is a common groundwater contaminant associated with fertilizers, septic systems and livestock waste in shallow unconfined aquifers. As a suspected carcinogen and cause of potentially lethal methemoglobinemia in infants, the natural attenuation of NO₃¯ by denitrification can be an important process in keeping groundwater as a reliable source of clean drinking water for North Dakota. Organic carbon is often considered the most important electron donor for the chemical reduction of NO₃¯ into harmless nitrogen gas. However, several studies have shown that inorganic electron donors …


The Effect Of Socially Relevant And Physiological Threat Stimuli On Psychophysiological Responses In Anxiety Sensitive Individuals, Jason P. Ediger Jan 1999

The Effect Of Socially Relevant And Physiological Threat Stimuli On Psychophysiological Responses In Anxiety Sensitive Individuals, Jason P. Ediger

Theses and Dissertations

No abstract provided.


Elder Care : Factors Fostering Hope In Noninstitutionalized Senior Citizens, Annette E. Gregoire Jan 1999

Elder Care : Factors Fostering Hope In Noninstitutionalized Senior Citizens, Annette E. Gregoire

Theses and Dissertations

No abstract provided.


Modeling Two-Phase Flow Behavior At Near Vacuum Pressures, Charles Hawkinson Jan 1999

Modeling Two-Phase Flow Behavior At Near Vacuum Pressures, Charles Hawkinson

Theses and Dissertations

No abstract provided.


Pain In The Critically Ill Abdominal Surgical Patient And The Efficacy Of Pca For Pain Management, Jane L. Hartman Jan 1999

Pain In The Critically Ill Abdominal Surgical Patient And The Efficacy Of Pca For Pain Management, Jane L. Hartman

Theses and Dissertations

No abstract provided.


Whitebark Pine (Pinus Albicaulus) Decline And Restoration In Glacier National Park, Kristopher T. Peterson Jan 1999

Whitebark Pine (Pinus Albicaulus) Decline And Restoration In Glacier National Park, Kristopher T. Peterson

Theses and Dissertations

No abstract provided.


Epicardial Epithelial-Mesenchymal Transformations Support Coronary Vasculogenesis In The Embryonic Quail Heart, Kamilla L. Reed Jan 1999

Epicardial Epithelial-Mesenchymal Transformations Support Coronary Vasculogenesis In The Embryonic Quail Heart, Kamilla L. Reed

Theses and Dissertations

No abstract provided.


The Effects Of Subchronic Dosage Of Ginkgo Biloba On Short Term Memory In A Double-Blind, Placebo Controlled Study On Healthy Volunteers, Patricia L. Moulton Jan 1999

The Effects Of Subchronic Dosage Of Ginkgo Biloba On Short Term Memory In A Double-Blind, Placebo Controlled Study On Healthy Volunteers, Patricia L. Moulton

Theses and Dissertations

No abstract provided.


The Effects Of Time Of Day On Gated Speech Perception Of Morning And Evening Type Individuals, Megan S. Bamburak Jan 1999

The Effects Of Time Of Day On Gated Speech Perception Of Morning And Evening Type Individuals, Megan S. Bamburak

Theses and Dissertations

No abstract provided.


Facial Expressions And Their Relationship To Pain Perception In Female Headache Sufferers During A Cold Pressor Procedure, Dana M. Borowiak Jan 1999

Facial Expressions And Their Relationship To Pain Perception In Female Headache Sufferers During A Cold Pressor Procedure, Dana M. Borowiak

Theses and Dissertations

No abstract provided.


Gulf War Syndrome And The Self, Eric J. Burton Jan 1999

Gulf War Syndrome And The Self, Eric J. Burton

Theses and Dissertations

No abstract provided.


Sub-Lethal Effects Of Hypoxia/Hypercapnia On Callinectes Sapidus In The York River Estuary, Virginia, Sandra R. Hypes Jan 1999

Sub-Lethal Effects Of Hypoxia/Hypercapnia On Callinectes Sapidus In The York River Estuary, Virginia, Sandra R. Hypes

Theses and Dissertations

This research examined effects of hypoxic environments on blue crabs, Callinectes sapidus in an estuarine environment. Hypoxic conditions were treated as a multiple stressor involving low dissolved oxygen (D.O.), increased carbon dioxide (hypercapnia), and low pH concurrently. The objectives were to: 1) identify hypoxiahypercapnia by monitoring D.O. and pH as an indicator of hypercapnia in shallow regions of the York River, 2) measure blue crab abundance, and 3) describe blue crab responses to hypoxiahypercapnia via field work at Taskinas Creek and lab measurements of respiration. Ambient D.O. and pH were positively correlated in the Taskinas Creek and York River sites …


Dna Footprinting Of Dnab Using Tus And Dna Footprinting Of Tus Mutants, David M. Mahli Jan 1999

Dna Footprinting Of Dnab Using Tus And Dna Footprinting Of Tus Mutants, David M. Mahli

Theses and Dissertations

No abstract provided.


Pesticide Issues And Public Policy Interaction, Elroy E. Haadem Jan 1999

Pesticide Issues And Public Policy Interaction, Elroy E. Haadem

Theses and Dissertations

No abstract provided.


Satisfaction Of Patients Receiving Interscalene Anesthesia For Shoulder Arthroscopy In An Outpatient Setting, Shawn L. Mcneally Jan 1999

Satisfaction Of Patients Receiving Interscalene Anesthesia For Shoulder Arthroscopy In An Outpatient Setting, Shawn L. Mcneally

Theses and Dissertations

No abstract provided.


The Impact Of Health Locus Of Control On Exercise Behaviors Of Health Care Workers, Kristin A. Posner Jan 1999

The Impact Of Health Locus Of Control On Exercise Behaviors Of Health Care Workers, Kristin A. Posner

Theses and Dissertations

No abstract provided.


The Effects Of 16kda Prolactin On Renal Hemodynamics And Fluid And Electrolyte Excretion In The Male Rat, Natalie D. Beiswenger Jan 1999

The Effects Of 16kda Prolactin On Renal Hemodynamics And Fluid And Electrolyte Excretion In The Male Rat, Natalie D. Beiswenger

Theses and Dissertations

No abstract provided.


Coping With Exercise Barriers : A Comparison Of Long-Term Exercisers And Exercise Relapsers, Karissa K. Adams Jan 1999

Coping With Exercise Barriers : A Comparison Of Long-Term Exercisers And Exercise Relapsers, Karissa K. Adams

Theses and Dissertations

No abstract provided.


The Nicu Environment : Perceptions Of Professionals And Caregivers Regarding Space Availability And Privacy, Jennifer K. Knighton Jan 1999

The Nicu Environment : Perceptions Of Professionals And Caregivers Regarding Space Availability And Privacy, Jennifer K. Knighton

Theses and Dissertations

No abstract provided.


Study Of Children's Ratings Of Perceived Exertion During Two Modes Of Exercise, Stacie A. Larson Jan 1999

Study Of Children's Ratings Of Perceived Exertion During Two Modes Of Exercise, Stacie A. Larson

Theses and Dissertations

No abstract provided.


Women's Leisure As It Relates To Work And Family Life, Brenda Johnson Jan 1999

Women's Leisure As It Relates To Work And Family Life, Brenda Johnson

Theses and Dissertations

No abstract provided.


The Genetic Population Structure Of Rana Sylvatica In Itasca State Park, Minnesota, Tina M. Squire Jan 1999

The Genetic Population Structure Of Rana Sylvatica In Itasca State Park, Minnesota, Tina M. Squire

Theses and Dissertations

No abstract provided.