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Articles 31 - 57 of 57

Full-Text Articles in Physiology

Female Collegiate Gymnasts And Experiences In Sport Retirement Due To Injury, Coleen Harrington Barry Dec 2008

Female Collegiate Gymnasts And Experiences In Sport Retirement Due To Injury, Coleen Harrington Barry

Dissertations

There has been very limited research on sport retirement concerning the experiences that female collegiate athletes face when retiring from a sport due to injury. The purpose of this qualitative study was to explore, understand, and describe experiences that former NCAA Division I female gymnasts had when they retired from gymnastics, part-way through college, due to injury. The main objective of the study was to attempt to understand female collegiate gymnasts' sport retirement experiences and the impact these experiences may have had on their identity development and college experience. The study also considered female collegiate gymnasts' perceived needs and coping …


Mapk Survival Signaling In Melanoma, Matthew W. Vanbrocklin Dec 2007

Mapk Survival Signaling In Melanoma, Matthew W. Vanbrocklin

Dissertations

Extracellular signals activate mitogen-activated protein kinase (MAPK) cascades potentiating biological activities such as cell proliferation, differentiation, and survival. Constitutive activation of MAPK signaling pathways is implicated in the development and progression of many human cancers, including melanoma. Mutually exclusive activating mutations in NRAS or BRAF are found in ∼85% of all melanomas resulting in constitutive activation of the MAPK pathway (RAS-BRAF-MEK-ERK-RSK). We have previously demonstrated that inhibition of this pathway with small molecule MEK inhibitors selectively induces apoptosis in human melanoma cells both in vitro and in vivo, but not in normal melanocytes. These results support the notion that the …


Molecular Analysis Of The Effects Of Atrazine On Xenopus Laevis Frogs, Ronald Edward Celestine Jul 2006

Molecular Analysis Of The Effects Of Atrazine On Xenopus Laevis Frogs, Ronald Edward Celestine

Dissertations

Atrazine, the most commonly used herbicide in the U.S., has been implicated as one of the factors that may be causing the worldwide decline of amphibians. First, I examined effects of atrazine on laboratory raised Xenopus laevis tadpoles, treated from 5 days post fertilization to NF stage 65/66 with a concentrationof 25 ppb of atrazine. This study showed no significant difference in body weight, length and metamorphic rate.

Second, I used DNA microarrays to examine mRNA expression levels of genes in atrazine treated and control Xenopus laevis tadpoles. I found significant changes in gene expression levels of 18 genes. These …


Cloning And Characterization Of A Novel Ion Channel, Jung-Ha Lee Jan 1998

Cloning And Characterization Of A Novel Ion Channel, Jung-Ha Lee

Dissertations

No abstract provided.


Physiologic Studies Of Immune Cell-Derived Peptide Modulation Of Chromaffin Cell Epinephrine Secretion, Jennifer Curran Roberts Jan 1997

Physiologic Studies Of Immune Cell-Derived Peptide Modulation Of Chromaffin Cell Epinephrine Secretion, Jennifer Curran Roberts

Dissertations

No abstract provided.


Regulation Of Sarcoplasmic Reticulum Calcium Atpase (Serca2) Gene Expression In Left Ventricular Hypertrophy And Heart Failure, Ming Qi Jan 1996

Regulation Of Sarcoplasmic Reticulum Calcium Atpase (Serca2) Gene Expression In Left Ventricular Hypertrophy And Heart Failure, Ming Qi

Dissertations

No abstract provided.


Dexamethasone And Insulin Regulation Of Tumor Necrosis Factor And Interleukin 6 Production During Septic Shock, Elisabeth Lilli Hahn Jan 1995

Dexamethasone And Insulin Regulation Of Tumor Necrosis Factor And Interleukin 6 Production During Septic Shock, Elisabeth Lilli Hahn

Dissertations

No abstract provided.


Voltage Clamp Analysis Of Latent Pacemaker Cells Isolated From Cat Right Atrium, Zhengfeng Zhou Jan 1993

Voltage Clamp Analysis Of Latent Pacemaker Cells Isolated From Cat Right Atrium, Zhengfeng Zhou

Dissertations

No abstract provided.


Roles Of Ion Channels In Nervous System Tumor Cell Growth, Yong Soo Lee Jan 1993

Roles Of Ion Channels In Nervous System Tumor Cell Growth, Yong Soo Lee

Dissertations

No abstract provided.


Mechanisms Mediating Sympathoadrenal Activation During Endotoxicosis In The Rat, Zhengzheng Zhou Jan 1992

Mechanisms Mediating Sympathoadrenal Activation During Endotoxicosis In The Rat, Zhengzheng Zhou

Dissertations

No abstract provided.


Norepinephrine-Induced Cardiomyopathy In Rabbits, Frances M. Powers Jan 1992

Norepinephrine-Induced Cardiomyopathy In Rabbits, Frances M. Powers

Dissertations

No abstract provided.


The Physiology And Morphology Of Canine Intracardiac Ganglion Cells, Xiaohe Xi Jan 1992

The Physiology And Morphology Of Canine Intracardiac Ganglion Cells, Xiaohe Xi

Dissertations

No abstract provided.


Neurophysiology Of Frog Dorsal Root Afferent Fibers And Their Intraspinal Processes, Nancy C. Tkacs Jan 1989

Neurophysiology Of Frog Dorsal Root Afferent Fibers And Their Intraspinal Processes, Nancy C. Tkacs

Dissertations

No abstract provided.


Skeletal Muscle Sugar Transport Alterations In Bacteremia, Margaret V. Westfall Jan 1988

Skeletal Muscle Sugar Transport Alterations In Bacteremia, Margaret V. Westfall

Dissertations

No abstract provided.


Methylphenidate Effects On The Learning And Performance Of Four Hyper Active Children, Paul James Yoder Dec 1984

Methylphenidate Effects On The Learning And Performance Of Four Hyper Active Children, Paul James Yoder

Dissertations

The effects of methylphenidate hydrochloride (Ritalin) on the learning and performance of four hyperactive children were evaluated using a repeated acquisition procedure with both learning and performance components. Three dosages of methylphenidate plus a placebo were evaluated under double-blind experimental conditions. Dosages treated included each subject's therapeutic dosage, a dosage 5 milligrams higher, and a dosage 5 milligrams lower. Methylphenidate produced no effect on either the number of errors per session or on the rate of responding across the range of dosages tested suggesting that the medication neither facilitated nor impaired learning or performance. Data were also collected on social …


An Anatomical, Electrophysiological, And Behavioral Comparison Of The Primary And Supplementary Motor Areas Of The Rat, Carl F. Sievert Jan 1984

An Anatomical, Electrophysiological, And Behavioral Comparison Of The Primary And Supplementary Motor Areas Of The Rat, Carl F. Sievert

Dissertations

No abstract provided.


The Role Of Hypoglycemia In The Development Of Cardiovascular Failure Following Escherichia Coli Endotoxin Administration In The Dog, Philip M. Kober Jan 1982

The Role Of Hypoglycemia In The Development Of Cardiovascular Failure Following Escherichia Coli Endotoxin Administration In The Dog, Philip M. Kober

Dissertations

No abstract provided.


Characteristics And Mechanisms Of Norepinephrine Depletion From The Myocardium And Spleen Of Endotoxic Rats, Benet J. Pardini Jan 1982

Characteristics And Mechanisms Of Norepinephrine Depletion From The Myocardium And Spleen Of Endotoxic Rats, Benet J. Pardini

Dissertations

No abstract provided.


Effects Of Electromagnetic Fields On The Visually Evoked Response In The Visual Cortex, Arni Holm Jan 1980

Effects Of Electromagnetic Fields On The Visually Evoked Response In The Visual Cortex, Arni Holm

Dissertations

Problem. This study sought to determine if electromagnetic fields affect the visually evoked response of the visual cortex. From the fact that nerve impulses are propagated by the motions of electrically charged ions, the question arose whether the presence of an external electromagnetic field might affect either the propagation of nerve impulses traveling through the optical nerve pathway or the functioning of the visual cortex itself.

Method. Evoked responses were produced in the visual cortex of cats by visual stimulation (light flashes). Surface electrodes, located at the visual cortex (and connected to a preamplifier and an oscilloscope) detectedthe evoked responses …


Effects Of Chemoreceptor And Baroreceptor Inputs On The Termination Of Inspiration, Dexter Franklin Speck Jan 1980

Effects Of Chemoreceptor And Baroreceptor Inputs On The Termination Of Inspiration, Dexter Franklin Speck

Dissertations

No abstract provided.


The Effect Of Autonomic Mediators Released By Electrical Stimulation Of The Ventricles On Contractile Force And Vulnerability To Fibrillation, David Emerson Euler Jan 1980

The Effect Of Autonomic Mediators Released By Electrical Stimulation Of The Ventricles On Contractile Force And Vulnerability To Fibrillation, David Emerson Euler

Dissertations

No abstract provided.


Central Organization Of The Cardiac Vagus, G. Steven Geis Jan 1979

Central Organization Of The Cardiac Vagus, G. Steven Geis

Dissertations

No abstract provided.


Effect Of Traumatic Injury On Sensitivity To Insulin, Karl M. Nelson Jan 1979

Effect Of Traumatic Injury On Sensitivity To Insulin, Karl M. Nelson

Dissertations

No abstract provided.


The Autonomic Control Of The Canine Left Ventricle, David B. Lippincott Jan 1977

The Autonomic Control Of The Canine Left Ventricle, David B. Lippincott

Dissertations

No abstract provided.


Insulin And Host Resistance To Endotoxemia, Bernard J. Buchanan Jan 1975

Insulin And Host Resistance To Endotoxemia, Bernard J. Buchanan

Dissertations

No abstract provided.


Neurally Induced Cardiac Dysrhythmias, Gilbert Hageman Jan 1975

Neurally Induced Cardiac Dysrhythmias, Gilbert Hageman

Dissertations

No abstract provided.


Quantitative Analysis Of Respiratory Cell Activity, Charles Lewis Webber Jan 1974

Quantitative Analysis Of Respiratory Cell Activity, Charles Lewis Webber

Dissertations

No abstract provided.