Digital Commons Network^™

An Analysis Of Intuitive Eating Among College Students, Danielle Marie Vsetecka

Dissertations and Theses @ UNI

In response to the world's increasing obesity rates, the use of traditional dieting and weight loss techniques is at an all time high. Although dieting rates have rapidly increased, the world's rising obesity rates show no sign of slowing and the effectiveness and effects of dieting have long been questioned. As an alternative to dieting and exercise, a non-dieting approach to weight regulation has emerged. Intuitive eating is one of its main tenants and is defined by allowing individuals to listen to internal body cues to determine hunger and fullness levels to meet nutritional and physical needs. However, few studies …

Optimal Movement Variability: A New Theoretical Perspective For Neurologic Physical Therapy, Nikolaos Stergiou, Regina T. Harbourne, James T. Cavanaugh

Journal Articles

Variability is a natural and important feature of human movement. Using existing theoretical frameworks as a foundation, we propose a new model to explain movement variability as it relates to motor learning and health. We contend that mature motor skills and healthy states are associated with an optimal amount of movement variability. This variability also has form and is characterized by a chaotic structure. Less than optimal movement variability characterizes biological systems that are overly rigid and unchanging, whereas greater than optimal variability characterizes systems that are noisy and unstable. Both situations characterize systems that are less adaptable to perturbations, …

Construction Of A Col11a1 Transgene Vector, Cameron Mckell Beck

Theses and Dissertations

Background: Cartilage disorders affect millions of people in the United States alone, with effects ranging from poor skeletal development and joint pain to shortened lifespan and perinatal lethality. Many of these disorders have their root in defects of collagen, type XI collagen being among the most important. A mouse model of such a type XI collagen defect is the chondrodysplasia (cho) mutant. Mice homozygous for this null mutation in the Col11a1 gene do not express the α1 chain of type XI collagen. This results in a functional knockout of type XI collagen, leading to insufficient skeletal development and perinatal lethality. …

The Effect Of Athletic Training Program Course Progression And Implementation Of Course Progression On First-Time Success Rate On The Board Of Certification Examination, Matthea S. Hungerford

All-Inclusive List of Electronic Theses and Dissertations

Context: For optimal preparation for the Board of Certification (BoC) examination, the environment in which a student learns should be designed to disseminate the appropriate knowledge in a sequenced, timely manner. Objective: To determine if there is a relationship between progression of courses (prevention and care, first evaluation course, rehabilitation, modalities, organization and administration) and their respective timing on first-time pass rate of the written and overall BoC examination. Design: Multiple Pearson correlational analyses. Setting: Web-based survey. Patients or Other Participants: Program directors from 31 Commission on Accreditation of Allied Health Education Programs (CAAHEP) accredited entry-level undergraduate athletic training education …

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 …

Cellular Mechanism Of Arglabin-Dimethylaminohydrochloride Cytotoxicity, Xiaofei Qin

Theses and Dissertations in Biomedical Sciences

Cancer is the second leading killer in the United States. Anticancer drug development is always based on the understanding of molecular and cellular mechanisms of carcinogenesis, as well as comprehensive knowledge of potential anticancer drugs. Arglabin-dimethylaminohydrochloride (arglabin-DMA) represents one of the new classes of anti-cancer agents that have shown promise in suppressing the growth of various tumor cells. However, the cellular mechanism of arglabin-DMA cytotoxic effects on tumor cells is still unclear. The current study was to determine the farnesyltransferase (FTase) inhibitory activity of arglabin-DMA and to investigate the effects of arglabin-DMA on three proteins: Ras, Rho and cyclin kinase …

Exogenous Expression Of Human Na, K-Atpase Isoforms In Insect Cells, Christal Renee' Carpenter

McCabe Thesis Collection

The Na-K-ATPase or Na pump is a membrane bound enzyme that maintains a high concentration of K+ and low concentration of Na+ in most animal cells. Three subunits constitute the Na pump, named alpha (ex), beta (~). and gamma (y). The ex subunit is responsible for the catalytic and transport of the enzyme, the ~ subunit is important for bringing the ex to the plasma membrane of the cell, and y is a regulatory subunit of the Na pump. In addition, there are several molecular variants or isoforms of the ex and ~ subunits. At present four different ex (ex …

Animal Science Alumni Newsletter, Winter 2006

Department of Animal Science: Departmental News

Contents:

Nielsen Named Kermit Wagner Distinguished Professor of Animal Science
Animal Science Alumnus is UNL Masters Week Recipient
From the Department Head’s Desk
Animal Breeding Symposium Honors Dr. Dale Van Vleck
New Faces for Old Places
New Faculty
Larry Larson to Retire
2006 SSR New Investigator Award
UNL Animal Science Students Benefit from the NC/NCW Annual Convention in More Ways than One
Block & Bridle Activities
2007 Upcoming Activities
Ambassador Activities
Beermann and Calkins Attend Congress in Ireland
Mexico 2006 – A Trip to Remember
Former Student Fernando Lagos Experiences
Former Graduates Receive CASNR Awards
Recent Department Awards and Recognitions …

The Effects Of P53 Status And Egf On Timp-2 And Other Proteins Related To Migration In Human Glioblastoma Cell Cultures, Lisa M. Lint

Honors Theses

The effects of epidermal growth factor (EGF) on proteins that have been implicated in the migration of the Grade IV brain tumor, glioblastoma multiforme, were investigated in this study. Differential expression levels of TIMP-2, MMP-2, and MT1-MMP in response to EGF treatment were compared by immunoprecipitation, and immunoblotting. This study involved two different cultured glioma cell lines, U87, which expresses wild-type p53, and T98, which has a mutation in the p53 gene, in order to determine if the status of the p53 tumor suppression gene is a factor in the regulation of proteins involved in this migration pathway. It was …

Synthesising Life-Sciences And Control Engineering: An Outline Survey And A Practical Example, Aidan O'Dwyer

Conference papers

There is an increasing interest in life science related areas in the electrical and control engineering community [1]. One manifestation of this interest is the development of interdisciplinary programmes, such as the B.Sc. in Medical Physics and Bioengineering, offered by the Dublin Institute of Technology from September 2005. A significant amount of research work in control engineering has focused on aspects of human physiological system, for example blood glucose regulation [2], cardiovascular modelling and control [3], and limb control [4]. There is an increasing emphasis on interdisciplinary research; in recognition of this, the Institute of Electrical Engineers (IEE) has starting …

Red And Black Tides: Quantitative Analysis Of Water-Leaving Radiance And Perceived Color For Phytoplankton, Colored Dissolved Organic Matter, And Suspended Sediments, Heidi M. Dierssen, Raphael M. Kudela, John P. Ryan, Richard C. Zimmerman

OES Faculty Publications

Using field measurements and quantitative modeling, we demonstrate that red coloration of the sea surface is not associated with any particular group of phytoplankton and is strongly dependent on the physiology of the human visual system. Red or brown surface waters can be produced by high concentrations of most types of algae, colored dissolved organic matter, or suspended sediment. Even though light reflected by red tides commonly peaks in the yellow spectral region (570–580 nm), human color perception requires consideration of the entire spectrum of light relative to receptors within the human eye. The color shift from green to red …

Effects Of Stretching On Jumping Performance, Carisa Chavez

Masters Theses & Specialist Projects

Stretching has been a part of warm-up for a very long time. Some recent research has shown that stretching could possibly hinder performance and others have shown it enhances performance. The purpose of this study was to examine whether stretching has an effect on vertical jump, and if so, how long the effects last. Twenty Western Kentucky students (10 M and 10 F) performed three trials each. There was a non-stretching group, a pre-stretching group and a between-stretching group; each of the subjects performed all three. The stretching protocol included a static stretching routine of the gluteus maximus, hamstrings, quadriceps, …

In Vitro Toxicity Of Cadmium Oxide Particles In Brl 3a Rat Liver Cells, Janice M. Shelley

Theses and Dissertations

For the last decade or so, in vitro toxicology has been studied as a method for determining human toxicity, as well as hazard identification and characterization. One purpose of in vitro studies is to determine the possibility of developing systems in which the toxicity of chemicals can be quantified, without heavy reliance on animal experimentation. Specific data pertaining to cadmium toxicity in humans through use of in vitro methods and models is sparse, at best. There is a need to complete more studies and collect more data to study particular chemicals and their effects and to complete proper evaluation and …

Medical Technology: Contexts And Content In Science And Technology, Michael A. De Miranda, Mark Doggett, Jane T. Evans

Architectural and Manufacturing Sciences Faculty Publications

No abstract provided.

Analysis Of Genotypic And Phenotypic Differences In Desmognathus Quadramaculatus Across The Southern Appalachians, Deborah Susan Merritt

Theses, Dissertations and Capstones

Populations of Desmognathus quadramaculatus were compared for genotypic and phenotypic differences across 5 states in the Southern Appalachians. Series consisting of 10 salamanders each were collected from West Virginia, Virginia, Tennessee, North Carolina and Georgia. Salamanders were assessed for genotypic differences by using allozyme (proteins with polymorphic loci) electrophoresis staining for 13 loci of the muscle, liver and stomach tissue. Nei’s genetic distance was used to score genetic variation between populations. Phenotypic differences were assessed by comparing 10 external morphological measurements between populations. Mahalanobis’ distance was used to score morphological differences between populations. Both genetic and morphological differences were correlated …

Cytokine Expression By T. Helper Cells Responding To Stress, Dina Zanetti

Master's Theses

Stress causes alterations to the immune system. These alterations have lead to increased susceptibility to antigens. The present study explores shifts in T helper (TH) cell balance (TH1 and TH2), through their cytokine expression. This study was performed in three phases, and focused mainly on animals subjected to a 10 day a chronic unpredictable stress paradigm. Phase one used ELISAs to confirm the cytokine profile produced from TH 1 and TH2 murine cell-lines. Phase two used SDS PAGE and Western Immunoblotting to show that splenocytes from Long Evan's Hooded rats subjected to the stress paradigm, had decreased in intercellular in …

Endocytic Function, Glycosaminoglycan Specificity, And Antibody Sensitivity Of The Recombinant Human 190-Kda Hyaluronan Receptor For Endocytosis (Hare), Ed Harris, Janet A. Weigel, Paul H. Weigel

Department of Biochemistry: Faculty Publications

The human hyaluronan receptor for endocytosis (hHARE) mediates the endocytic clearance of hyaluronan (HA) and chondroitin sulfate from lymph fluid and blood. Two hHARE isoforms (190 and 315 kDa) are present in sinusoidal endothelial cells of liver, spleen, and lymph nodes (Zhou, B., McGary, C. T., Weigel, J. A., Saxena, A., and Weigel, P. H. (2003) Glycobiology 13, 339–349). Here we report the specificity and function of the 190-kDa HARE, expressed without the larger isoform, in Flp-In 293 cell lines (190hHARE cells). Like the native protein, recombinant hHARE contains ~25 kDa of N-linked oligosaccharides, binds HA in a ligand blot …

Implementation And Validation Of A Real-Time Wireless Non-Invasive Physiological Monitoring In A High-G Environment, H. Aydin Akcivi

Theses and Dissertations

The overall purpose of this research is to develop a system capable of real-time personal positioning and physiological monitoring. The system will be composed of a shirt having non-invasive physiological sensors, Global Positioning System (GPS) receiver, wireless data transceiver, and real-time PC-based control station. The specific purpose of this research phase was to determine the performance capabilities of a modified LifeShirt™ alone (without GPS) in a high gravitational force environment with the data being sent wirelessly in real-time. The LifeShirt™ was modified with a real time wireless transmission system.

An Investigation Of Perceived Restrictions On Certified Athletic Trainers Practice, Katy Taake

All-Inclusive List of Electronic Theses and Dissertations

The purpose of this study was to identify the frequency and nature of perceived restrictions by certified athletic trainers (ATCs) and to determine the frequency of perceived restrictions for each practice setting within states that have legislation. This was a qualitative-descriptive study performed with a web-based survey. 10,000 ATCs receiving electronic mail from the National Athletic Trainers' Association (NATA) were invited to participate in this study. 1158 subjects participated in the study, and 724 subjects (295 female and 429 male; age=33.2 ± 8.3yrs) remained after exclusions. A webbased survey was created to evaluate perceived restrictions. Inorder to establish face validity …

The Effect Of Butyrate Feeding On Skeletal Muscle And Adipose Tissue Glucose Uptake, Sean Eric Thatcher

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Sean Eric Thatcher on May 31, 2002.

Do Cellular Phones Cause Headaches?, Jasmine Gay

McCabe Thesis Collection

Many people have recently complained about experiencing headaches in association with the use of their cellular telephones. There is much controversy over this subject because it has not yet been proven that the microwaves emitted by cellular telephones cause headaches. The research questions include the following: What are the effects, if any, of the use of cellular telephones on human health? Do they cause headaches? Are they responsible for the increase in size of some brain tumors?

There have been many experiments performed by various scientists in the field of bioelectromagnetics and by the World Health Organization (WHO); however, these …

The Impact Of Burnout On Human Physiology And On Operational Performance: A Prospective Study Of Soldiers Enrolled In The Combat Diver Qualification Course, Charles A. Morgan Iii, Tracey Cho, Gary Hazlett, Vladimir Coric, Jeff Morgan

National Security Faculty Publications

(from p. 201) "If little is known about the pathophysiology of burnout, even less is known about the actual impact of burnout on military operational performance. This is due to a lack of studies focused on military performance. Whether or not soldiers may feel symptoms of burnout is one thing - whether this state actually affects how they do their job is another. Within the current environment (reduced forces, increased training rates, increased deployment rates, extended tours) we believe that military personnel may be at significant risk for the development of burnout. Further, we wondered if there was a demonstrable …

Biogenesis And Traffic Of The Potassium Channel, Natalie De Souza

Student Theses and Dissertations

Excitability of nerve and muscle cells depends on the number and the types of ion channels expressed at the plasma membrane. This work examines aspects of biogenesis and traffic of the Shaker voltage-gated potassium channel. Shaker is an oligomeric, polytopic membrane protein and, as such, its biogenesis begins at the endoplasmic reticulum (ER). I have studied (i) targeting of Shaker to the ER and stable integration into the lipid bilayer, (ii) N-linked glycosylation, assembly and folding Shaker in the ER, and (iii) export of Shaker from the ER and subsequent traffic to the surface. Targeting to the endoplasmic reticulum, integration …

An Equity Paradigm For Preventing Genetic Discrimination, Anita Silvers, Michael Ashley Stein

Faculty Publications

No abstract provided.

Long Chain Fatty Acids And Pc12 Cell Death, Joel E. Ulloth

Loma Linda University Electronic Theses, Dissertations & Projects

Hypoxic-ischemic and traumatic injury to the central nervous system (CNS) are major sources of morbidity and mortality. The broad goal of this dissertation research is to gain a better understanding of the cascade of injury events that follow hypoxic-ischemic and traumatic injury and how they may contribute to the cell death. To accomplish this goal, one of the major secondary events common to both traumatic and hypoxic-ischemic injury was investigated: the prolonged hydrolysis of membrane phospholipid with the release of massive quantities of free (non-esterified) fatty acid (FFA). The central hypothesis of this dissertation research is that elevated levels of …

Proprioception, Non-Law, And Biolegal History, Owen D. Jones

Vanderbilt Law School Faculty Publications

This Article explores several advantages of incorporating into law various insights from behavioral biology about how and why the brain works as it does. In particular, the Article explores the ways in which those insights can help illuminate the deep structure of human legal systems. That effort is termed "biolegal history."

Comparison Of A Space Shuttle Flight (Sts-78) And Bed Rest On Human Muscle Function, Scott W. Trappe, Todd A. Trappe, Gary A. Lee, Jeffrey J. Widrick, David L. Costill, Robert H. Fitts

Biological Sciences Faculty Research and Publications

The purpose of this investigation was to assess muscle fiber size, composition, and in vivo contractile characteristics of the calf muscle of four male crew members during a 17-day spaceflight (SF; Life and Microgravity Sciences Spacelab Shuttle Transport System-78 mission) and eight men during a 17-day bed rest (BR). The protocols and timelines of these two investigations were identical, therefore allowing for direct comparisons between SF and the BR. The subjects’ age, height, and weight were 43 +/- 2 yr, 183 +/- 4 cm, and 86 +/- 3 kg for SF and 43 +/- 2 yr, 182 +/- 3 cm, …

Variations In The Histamine Content Of Mink Testes Due To Injections Of Gonadotrophic Hormones And Application Of Free Radicals In Vitro, Grant I. Wilson

Biology

It was hypothesized that gonadotropic hormones and oxygen-derived free radicals affect histamine production in the testes. Luteinizing hormone, follicle stimulating hormone, prolactin, a combination of these three hormones, or saline (controls) were injected for either 4 or 7 days into seven wild-type (demi) and seven dark male mink per group. All mink were euthanized with carbon monoxide. Their testes were removed and frozen on dry ice. The histamine content was analyzed using radioimmunoassay. The control wild-type mink injected for either 4 or 7 days had histamine values of 8.15 μg/g and 7.56 μg/g, respectively. In wild-type mink, there was no …

Olfactory Behavior In Apoe Knockout Mice, John P. Yost

Masters Theses

Apolipoprotein E (apoE), a lipid transporting protein, has been shown to play a vital role in nerve repair and remodeling. Since the olfactory system is in a continuous state of remodeling, the present study tested the hypothesis that apoE is required for normal functioning of the olfactory system. Olfactory function of the wild type (WT) and apoE deficient (apoE KO) mice was assessed by using three standard olfactory tests: 1) the buried food pellet (BFP) test; 2) the odor choice (OC) test; and 3) the odor cued taste avoidance (OCTA) test. The visible food pellet test (VFP) was not used …

The Affect Of Low Intensity, Progressive, Aerobic Exercise Training On Cardiovascular Function In The Diabetic Rat, Steven Michael Bauer

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Masters of Science in Biology by Steven Michael Bauer on August 4, 2000.