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Validity Of Daytime Urinary Frequency As A Tool For Assessing Hydration, Monica Ziebart

Health, Human Performance and Recreation Undergraduate Honors Theses

Introduction: It is known that 24-h void number is a valid way to assess hydration status. However, no studies have examined if urinary frequency just during the waking hours (~18 h) is a valid indicator of hydration status. Purpose: This study was conducted in order to determine if void number during only the waking hours was a valid indicator of hydration status compared to total voids over a 24-hour period. Methods: The subjects in this study consisted of 14 males and 18 females 18-80 yrs old who were healthy and not currently taking any body fluid altering medications. This study …

Gastrointestinal Health As A Stimulus For Native American Attraction To Medicinal Asteraceae And Further Implications For Human Evolution, Christopher David Stiegler

Graduate Theses and Dissertations

The Asteraceae, or the daisy family, is the largest family of flowering plants in the world, and its ethnobotanical, medical, and economic value is readily apparent cross-culturally. The aim of this thesis is to examine why constituent genera of the Aster family have remained such an integral part of human medicinal plant knowledge, and thereby to reveal any potential physiological, biological, or evolutionary mechanisms underlining human patterns of use regarding the Asteraceae. The present study focuses specifically on Native American plant knowledge made available by the expansive database in the works Daniel Moerman (Moerman 2003). Frequencies of plant use and …

Exploring The Production Of Extracellular Matrix By Astrocytes In Response To Mimetic Traumatic Brain Injury, Addison Walker

Graduate Theses and Dissertations

Following injury to the central nervous system, extracellular modulations are apparent at

the site of injury, often resulting in a glial scar. Astrocytes are mechanosensitive cells, which can create a neuroinhibitory extracellular environment in response to injury. The aim for this research was to gain a fundamental understanding of the affects a diffuse traumatic brain injury has on the astrocyte extracellular environment after injury. To accomplish this, a bioreactor culturing astrocytes in 3D constructs delivered 150G decelerations with 20% biaxial strain to mimic a traumatic brain injury. Experiments were designed to compare the potential effects of media type, number of …

The Influences Of Texture And Mastication Pattern On Flavor Perception Across The Lifespan, Curtis Robert Luckett

Graduate Theses and Dissertations

Texture is an often-overlooked food attribute and is known to influence other food characteristics. More specifically, texture has been repeatedly to influence how we perceive flavor. Several studies have linked this change in flavor perception to the altered mastication patterns that accompany texture changes. This dissertation is composed of four studies that were designed to address how American food consumers view texture and other food attributes as well as characterize how texture and mastication can influence temporal flavor dynamics. The first study was a survey that outlined consumer attitudes towards a variety of different foods. This study solidified that texture …

Cooling Effectiveness Of Modified Cold-Water Immersion Method Following Exercise-Induced Hyperthermia, Katherine Elizabeth Luhring

Graduate Theses and Dissertations

Context: Recommended treatment of exertional heat stroke (EHS) includes whole body cold-water immersion (CWI); however, remote locations, spatial or monetary restrictions challenge CWI feasibility. Thus, the development of a modified, portable CWI method would allow for optimal treatment of EHS when restrictions apply. Objective: Determine cooling efficacy of modified CWI (tarp assisted cooling with oscillation; TACO) following exertional hyperthermia. Design: Randomized, crossover controlled trial. Setting: Environmental chamber (33.4 ± 0.8°C, 55.7 ± 1.9% relative humidity). Patients or Other Participants: Sixteen (9 males, 7 females) volunteers (26 ± 4.7y, 1.76 ± 0.09m, 72.5 ± 9.0kg, 20.7 ± 7.1%body fat) with no …

Visceral Space: Dissection And Michelangelo's Architecture, Chloe Costello

Architecture Undergraduate Honors Theses

This thesis focuses on the architectural work of Renaissance master Michelangelo Buonarroti, who, perhaps, is better known for his painting and sculpture than for his architecture. Nevertheless, his buildings are revered by architectural historians, such as James Ackerman, for their mimicry of bodily motion and emotion. Under the influence of Renaissance humanism, it was not uncommon for architects to validate their designs by reference to the human body, for example, basing the dimensions of a basilica on ideal bodily proportions. But, Michelangelo's approach in his earliest architectural designs, such as the Medici Chapel (1521-1524) and the Laurentian Library (1523-1525) in …

Landscape Visibility And Prehistoric Artifact Distribution At Pea Ridge National Military Park, Jake Lee Mitchael

Graduate Theses and Dissertations

Pea Ridge National Military Park, in the north east corner of Benton County, Arkansas, is the 4,300 acre site of a crucial Civil War Battle. Human occupation of the Ozark Highland landscape, however, extends far into pre-history. A 2005 report to the National Park Service details the findings of a four year cultural resource survey of the park. The sampling strategy employed in the research design (random sample site selection and 2.5% park coverage) provides an excellent dataset to assess prehistoric land use. This dataset is not dependent on artificially defined sites, representing singular activity in a limited geographical space. …

Development Of A Heart Rate Variability Measurement System Using Embedded Electronics, Naresh Kumar Velmurugan

Graduate Theses and Dissertations

Recent advances in embedded electronics have a remarkable influence on the health care system. One of the most important applications is to monitor the health care of the patients at anytime and anyplace. In the last two decades, many researchers have focused mainly on heart rate variability (HRV) measurements. Patient's heart rate variability should be continuously monitored to help them in case of emergency. Under these circumstances, patients are required to have a HRV measuring kit for a constant observation.

The proposed project focuses on the development of a heart rate variability measurement system with the use of embedded electronics. …

Effects Of Breathing Cool Air During Cycling Exercise In The Heat, Christian B. Ridings

Graduate Theses and Dissertations

INTRODUCTION: The purpose of this study was to establish the ability of the Core Cooler device to prevent rises in physiological heat strain of trained male cyclists during cycling exercise in the heat. METHODS: 15 healthy male cyclists cycled at 50-70% VO2max for 75 minutes in a heat chamber of 31°C & 55% RH while breathing through the Core Cooler device under three different conditions: 1:4 ratio without ice termed control (CN), 1:4 ratio with ice termed low intermittent (LI), and at 1:1 ratio with ice termed high intermittent (HI). Data collected every 15 minutes assessing intestinal temperature (TGI), heart …

Stability Of Nano-Encapsulated Rice Bran Derived Bioactive Pentapeptide In Apple Juice, Fatima Mohammed Alessa

Graduate Theses and Dissertations

Cereal grains and their components derived Bioactive compounds such as rice bran can promote health and can be derived from Rice bran contains 12-20 % protein and could be a good source for extracting bioactive peptides. A pentapeptide with a secqunce of amino acids Glu-Gln-Arg-Pro-Arg (EQRPR) has been prepared from heat stablized defatted rice bran (HDRB) and has demonstrated anti-cancer proprerties in-vitro. This bioactive pentapeptide can thus be used as a nutraceutical by incorporating it into a suitable food system. Fruit juces can be vehicles to incorporate this pentapeptide. Fruit juices contribute to about 60% of the consumed beverages in …

Kirschner's Modal Ontological Argument, Andrew Kirschner

Graduate Theses and Dissertations

Ontological Arguments for the existence of God, first discovered by St. Anselm (1033-1109), attempt to deduce the existence of God from the concept of God. It is the aim of this thesis to champion a modal version of the Ontological Argument as philosophically sound by demonstrating it to be logically valid and by successfully defending the argument's premises as true. Kirschner's version of the Ontological Argument states:

P1 For every type of entity, instances of that type of entity either actually exist, merely possibly exist, or necessarily do not exist.

P2 If an entity can be conceived, then that entity …

Effects Of High-Velocity Versus Low-Velocity Resistance Training On Resting Metabolic Rate And Functional Performance In Older Adults, Laura Ashleigh Morgan

Graduate Theses and Dissertations

The purpose of this study was to compare the effects of a 12-week high-velocity resistance training (HVRT) protocol to a traditional low-velocity resistance training (LVRT) protocol on resting metabolic rate (RMR) and other selected measures of muscular and functional fitness in older adults. Nineteen adults between the ages of 65 and 82 participated: 8 HVRT, 7 LVRT, and 4 controls (CTRL). Initially, no differences existed between groups except for age (p = .016). HVRT (75.6 years) was older than LVRT (69.6 years) and CTRL (69.3 years). The exercise intervention consisted of 2 days/week sessions for 12 weeks at 3 sets …

Life History Variation Of Common Terns In The Gulf Of Maine, Jeffery Bryant Kimmons

Graduate Theses and Dissertations

Life history is the inheritable rules that determine energy and time allocation towards different competing functions in the energy budget of an organism. Reproductive effort varies as organisms make reproductive decisions based on available energy. Factors influencing life histories are those that change energy and time budgets such as diet, competition, and environmental conditions.

Common tern (Sterna hirundo) life history phenotypes vary between islands in the Gulf of Maine. Common terns on offshore islands (>10km from mainland) and nearshore islands (5 to 10km from mainland) lay smaller clutches, hatching chicks with slower growth rates than common terns …

A Reexamination Of The Eastern Collared Lizard (Crotaphytus Collaris Collaris) In Arkansas, Ashley A. Grimsley

Graduate Theses and Dissertations

Loss of suitable habitat is a threat to species worldwide. Habitat destruction, including loss, change, and fragmentation of habitat, is the leading cause of species extinction. Eastern collared lizards (Crotaphytus collaris collaris) are habitat specialists on glades. Both C. c. collaris and glade habitats are rare and of special concern in the state of Arkansas. Many glade populations have already been extirpated in the Ozarks of Arkansas and Missouri. Increasing knowledge of the distribution, habitat structure, and population dynamics of C. c. collaris is important to ensure the survival of this species in Arkansas.

A literature review of …

The Effects Of Physical Activity Education On Exercise Self-Efficacy And Physical Activity: A Comparison Study Between Exercise Science And Physical Education Teacher Education, Megan Wojcicki

Health, Human Performance and Recreation Undergraduate Honors Theses

The purpose of this study was to understand the adjustment families undergo when a child is diagnosed with deafness as well as their adjustment to the child hearing after a cochlear implant is in place. The participants of the study were four hearing adults between the ages of 18-28 who have a younger sibling with a cochlear implant. The qualitative study used reports from four participants to reflect on how hearing loss and subsequent cochlear implantation impacted the family’s lives. Contrary to expecting findings, the themes did not change and all four reported nurturing and personal growth as key themes.

Annual Report, 2011, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering

Biological and Agricultural Engineering Department Annual Report

No abstract provided.

Annual Report, 2010, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering

Biological and Agricultural Engineering Department Annual Report

No abstract provided.

Impact Of Stressing A Pen Mate On Physiological Responses Of Growing Pigs, Brent Koonce, Elizabeth B. Kegley, Doug Galloway, Jason Apple

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Crossbred barrows and gilts (n = 36), weighing 16.59 ± 2.1 kg, were used to test the effects of stressing a pen mate on the physiological responses of growing pigs. Pigs were randomly allotted to 6 groups after stratifying according to gender, litter origin, and body weight. Dominance order was determined within each group, and 1 to 3 d prior to the stress treatment the most- and least-dominant pigs within a group were fitted with indwelling catheters in their vena cavas. Over 3 d, groups were either: 1) isolated from audile and visual contact with stressed pigs in a separate …

Cultivatingbigideas, September 2007, University Of Arkansas, Fayetteville. Technology Development Foundation

Cultivating Big Ideas

No abstract provided.

Annual Report, 2007, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering

Biological and Agricultural Engineering Department Annual Report

No abstract provided.

Annual Report, 2006, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering

Biological and Agricultural Engineering Department Annual Report

No abstract provided.

Annual Report, 2005, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering

Biological and Agricultural Engineering Department Annual Report

No abstract provided.

Annual Report, 2004, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering

Biological and Agricultural Engineering Department Annual Report

No abstract provided.

Annual Report, 2003, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering

Biological and Agricultural Engineering Department Annual Report

No abstract provided.

Partners, December 2002, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville). Center Of Excellence For Poultry Science

Partners

No abstract provided.

Partners, April 2000, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville). Center Of Excellence For Poultry Science

Partners

No abstract provided.

Toward A Concise Definition And Perspective For Biology, Arthur V. Brown, Kristine Basinger Brown

Journal of the Arkansas Academy of Science

The content of introductory biology courses at the high school and college levels are currently being re-examined. Many biological educators favor revision of the high school biology courses to a format that directly addresses current social issues to "promote good citizenship". We believe it would be more meaningful to teach the fundamental principles of biology, the study of living systems. Properly defining biology, by defining a living system, should help identify important topics to include in a basic biology course. Emphasis should be placed on subjects which would contribute most to the development of a basic understanding of how all …

Evaluation Of Undergraduate Courses Taught By Biology Teachers, Jewel E. Moore, Robert T. Kirkwood

Journal of the Arkansas Academy of Science

No abstract provided.

Unusual Results From Pellet Analysis Of The American Barn Owl, Tyto Alba Pratincola (Bonaparte), Kenneth N. Paige, Chris T. Mcallister, C. Renn Tumlison

Journal of the Arkansas Academy of Science

No abstract provided.

How Should Science Be Taught To Aid In Our Present Emergency?, Irvin A. Wills

Journal of the Arkansas Academy of Science

No abstract provided.