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Articles 1 - 8 of 8
Full-Text Articles in Life Sciences
Relationship Of Winter Hair Coat Shedding Ability Of Purebred Angus Dams With Mineral Status, Apparent Forage Digestibility, Uterine Artery Hemodynamics, And Calf Growth And Development, Randy Hunter Burnett
Relationship Of Winter Hair Coat Shedding Ability Of Purebred Angus Dams With Mineral Status, Apparent Forage Digestibility, Uterine Artery Hemodynamics, And Calf Growth And Development, Randy Hunter Burnett
Theses and Dissertations
Winter hair coat shedding ability in southern U.S. cattle production has previously been associated with differences in adjusted birth and weaning weights of calves from dams that shed by June or later (Gray et al., 2011; Cauble et al., 2019). This study was developed to research possible avenues of why these relationships exist with winter hair coat shedding ability. The primary objectives of the following experiments were to: 1) evaluate how mineral status relates to winter hair coat shedding ability, 2) evaluate how winter hair coat shedding ability relates to apparent digestibility of forage, 3) evaluate winter hair coat shedding …
The Art Of Amphibian Conservation: Linking In-Situ And Ex-Situ Populations Of Endangered Species Through Genome Banking, Isabella Joann Burger
The Art Of Amphibian Conservation: Linking In-Situ And Ex-Situ Populations Of Endangered Species Through Genome Banking, Isabella Joann Burger
Theses and Dissertations
Limited breeding success in captive breeding programs has necessitated the development of assisted reproductive technologies (ART) to preserve and increase genetic variation and population numbers of both captive and wild amphibian groups. ART has been shown to be successful in numerous anuran species, and current studies focus on the application of ART in ex-situ populations. The focus of this project is to show that linking in-situ and ex-situ amphibian populations through sperm cryopreservation, genome banking, and in-vitro fertilization is possible, with the goal of increasing gene diversity throughout groups in order to produce self-sustaining, wild populations in the future. Specific …
Handgrip Strength In Cancer Survivors: 2011-2014 National Health And Nutrition Examination Survey, Ayla Monet Kibler
Handgrip Strength In Cancer Survivors: 2011-2014 National Health And Nutrition Examination Survey, Ayla Monet Kibler
Theses and Dissertations
Cachexia, or a loss of muscle mass, has been identified as a potential indicator of cancer survival rates. Previous explorations in research have connected muscular strength to muscle loss and cancer survivorship, but nationally generalizable findings are limited. PURPOSE: To investigate handgrip strength in cancer survivors using the National Health and Nutrition Examination Survey (NHANES), a nationally representative sample of US adults. METHODS: The analysis included 368 males and 425 females from the 2011-2014 NHANES dataset. Cancer survivor information (type of cancer and age of diagnosis) was determined by questionnaire. Cancer types were grouped into the following: skin cancers, reproductive …
Effects Of Exercise Intensity And Type On Executive Function In Elementary-Aged Children, Patrick Pommier
Effects Of Exercise Intensity And Type On Executive Function In Elementary-Aged Children, Patrick Pommier
Theses and Dissertations
The interactions of exercise on executive functioning (EF) have been studied thoroughly in previous literature, focusing mostly on the interactions of aerobic exercise (AE) intensity and its effects on inhibition and working memory. Although multiple categories of EF have been shown to improve based on aerobic exercise, the foundation of brain development relies within its ability to utilize all three areas of EF simultaneously. Therefore, the purpose of this study was to determine the effects of exercise intensity and type of exercise (cognitive activation) on EF in elementary-aged children. Design: Eighteen children (mean age=10.4, SD=0.5, 61.1% girls) participated in a …
Modeling Individual Muscle Forces In The Lower Extremity During Loaded And Unloaded Hexbar Vertical Jumps, Abigail Salvadore
Modeling Individual Muscle Forces In The Lower Extremity During Loaded And Unloaded Hexbar Vertical Jumps, Abigail Salvadore
Theses and Dissertations
Hexagonal barbell (HB) loaded jumps are often used in training to increase lower extremity power. Given the importance of coordinated muscular effort in achieving maximal power output, an understanding of how the lower extremity musculature individually performs during loaded jumps would be advantageous. The purpose of this study is to describe the effect of load on individual muscle forces, muscle torques, and the contribution to the net joint moment (NJM) during the concentric phase of loaded HB jumps.10 male collegiate athletes performed 5 maximal HB jumps at 0%, 20%, 40% and 60% of their HB deadlift 1-repetition maximum. Filtered Ground …
Muscarinic Excitation Of Dopamine Neurons In The Ventral Tegmental Area Via Activation Of A Trpc-Like Cation Conductance, Yu Tzu Chen
Theses and Dissertations
Dopaminergic (DA) neurons in the ventral tegmental area (VTA) play a crucial role in reward and motivational behaviors, including the development of drug addictions. VTA DA neurons receive excitatory cholinergic inputs from the mesopontine tegmentum. Blockage of the M5 muscarinic receptor in DA neurons has been shown to attenuate drug-induced DA release and abuse-related behaviors, but the molecular mechanism is unknown. In this study, experiments were designed to identify the electrophysiological effects of muscarinic agonism in the modulation of action potential kinetics and firing patterns in VTA DA neurons of mice. Pharmacology of the muscarinic receptor-evoked current was also characterized. …
A Novel Review Of Heat Shock Protein 110 Kda: A Basis For Research And Continued Experimentation Through Biochemical Analysis, Crist W. Cuffee
A Novel Review Of Heat Shock Protein 110 Kda: A Basis For Research And Continued Experimentation Through Biochemical Analysis, Crist W. Cuffee
Theses and Dissertations
Heat shock protein 110 kDa, Hsp110, is a distinct cellular protector, different in form and function from Hsp70, a close relative of Hsp110. Functioning primarily as a holdase or in tandem with other molecular chaperones, a review of current accomplishments elucidates the uniqueness of this protein and the continued mysteries that surrounds it. Found only in eukaryotes, Hsp110 has been linked to many diseases, ranging from parasitic infection to neurodegenerative disorders. While still lacking, studies of this protein have provided much in the realm of speculation on the mechanisms behind Hsp110s’ contribution to different pathologies. This review will serve as …
A Computational Model Relating Tissue Oxygen Consumption To Oxygen Delivery In A Krogh Cylinder Model Of Skeletal Muscle, Raghad A. Alqahtani
A Computational Model Relating Tissue Oxygen Consumption To Oxygen Delivery In A Krogh Cylinder Model Of Skeletal Muscle, Raghad A. Alqahtani
Theses and Dissertations
Oxygen transport from a capillary to skeletal muscle tissue is a complex process that involves convective and diffusive mechanisms to deliver adequate oxygen to meet tissue metabolic activities. Typically, oxygen uptake in tissue is set by oxygen demand, which is set by metabolic activity. The relationship between the oxygen consumption (VO2) of an isolated perfused tissue and the rate of delivery of oxygen (QO2) to the tissue has been a subject of interest to many investigators over the past century. Experiments have shown that there is a critical value of QO2 below which tissue VO …