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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 29 for “"Reproductive Hormones"”.
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Influence of Reproductive Hormones on Resting and Exercise Metabolism in Women
Made available in DSpace on 2014-12-11T22:22:24Z (GMT). No. of bitstreams: 1 7412229.pdf: 4584615 bytes, checksum: 6a400264771ea6a04e56847e0459b640 (MD5) Previous issue date: 1973
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Effects of kiwi-fruit seaweed extract on the metabolism of female reproductive hormones
Hormonal fluctuations are known to affect a female’s quality of life during the different stages of their lifespan. In middle-aged women, hormonal fluctuations are especially known to impact on their mental and physical health. During the peri- menopausal years, a woman’s health can deteriorate and …
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The effect of reproductive hormones on muscle function in young and middle-aged females.
The menopause is associated with a deficiency of reproductive hormones, and accompanied by a significant loss of bone mass. This bone loss is accelerated within the first five years post-menopause. Muscle strength at this time would have important clinical implications for correcting imbalance and …
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A retrospective analysis of semen samples and reproductive hormones in Africa and the middle east
… on semen quality (Africa and Middle East) and reproductive hormones (Middle East) in patients who underwent semen analysis and endocrine investigation at Andrology Laboratories in South Africa and Qatar. The effects of geographical location, age, ejaculatory abstinence and seasonal changes were …
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The relationship between reproductive hormones and asthma-related outcomes in boys residing in the rural Western Cape
… after puberty. It has been suggested that reproductive hormones may play a role in explaining these sex differences after puberty, but the evidence is still limited especially for children living in low- and middle-income countries. Objective: This study investigated the association between …
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The relationship between urinary organophosphate pesticide residues and reproductive development among boys living in the rural Western Cape
… studies have investigated their effect on the reproductive health and growth of pubertal boys. A previous analysis found significant differences in serum reproductive hormone levels and lower anthropometric measurements as well as non-significant lower sexual maturity ratings and testicular …
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Effect of Hormonal and Temporal Factors on Captive Female Manatee (Trichechus Manatus Latirostris) Behavior
Activity patterns, spatial use and reproductive hormones of nine adult-female captive manatees at Homosassa Springs Wildlife State Park (HSWSP) were studied from January 6 to August 10, 2003. This study probed two main topics: 1) activity pattern and spatial use of the facility by manatees over …
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Factors affecting the timing and success of sockeye salmon spawning migrations
… trait. To address the hypothesis that reproductive hormones are principal determinants of migration timing, I physiologically biopsied over 1000 sockeye salmon and monitored their subsequent behaviour with acoustic and radio telemetry as they migrated from the Pacific Ocean toward and …
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Strategies to Improve Reproductive Efficiency in Cattle with Dietary Intervention
This dissertation examines how reproductive efficiency can be improved through dietary intervention. The use of diet to enhance reproduction is theoretically a low-cost and low-input method that will co-align with reproductive technologies' beneficiary effects. Ideally, with improved nutrition …
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Evaluation of salivary progesterone profiles as an indicator of reproductive status in equines
Diagnostic assays of reproductive hormones are usually performed by veterinarians on mares after inconclusive findings from trans-rectal palpation or ultrasound genital examination, or on intractable mares. Of the reproductive hormones, progesterone (P4) is one of the most commonly measured …
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Reproductive Endocrinology and Musth-Behavior of a Captive Male Asian Elephant (Elephas Maximus)
… breeding behavior was not linked to levels of reproductive hormones. Although testosterone levels increased prior to musth, and presumably caused the musth behaviors, the high variability in hormone measurements does not make this a good way to predict the onset of musth.
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EFFECT OF REPRODUCTIVE EFFICIENCY IN REGARDS TO WORKLOAD ON PERIPHERAL CIRCULATIONS OF BLOOD CORTISOL AND LEPTIN IN THE OPEN MARE
<p>ABSTRACT</p> <p>Effect of Reproductive Efficiency in Regards to Workload on Peripheral Circulations of Blood Cortisol and Leptin in the Open Mare</p> <p>(December, 2016)</p> <p>Michaelle Kathleen Coker, B.S., Texas A&M University</p> <p>Thesis Director: Dr. John Michael Mehaffey</p> <p>Quarter …
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The Influence of Hormonal Fluctuation on Stress-Induced Smoking Cravings in Women
… study aimed to clarify the role that changes in reproductive hormones may play in explaining these cycle effects. Furthermore, it tested the hypothesis that stress-induced smoking cravings are more pronounced during the luteal phase. To this end, twenty-two smoking women underwent two laboratory …
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Markers of Circadian Disruption and Reproductive Risk Factors for Breast Cancer
… Circadian disruption is hypothesized to impact reproductive signaling, which in turn has long been linked to breast cancer. The melatonin hypothesis holds that increased exposure to artificial light at night and resulting inhibition of nocturnal melatonin may account for recent increased breast …
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Contrast sensitivity and emotion recognition across the menstrual cycle
… perception may be influenced by fluctuation in reproductive hormones associated with the menstrual cycle. Cyclic shifts in female mate preferences, facial recognition and low-level visual processing have been attributed to such hormonal variations. The cycle shift hypothesis posits that such …
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The Evolution of Extended Sexual Receptivity in Chimpanzees: Variation, Male-Female Associations, and Hormonal Correlates
… 2, I examined female-male relationships across reproductive states to ask whether females can better gain benefits and avoid costs by affiliating promiscuously with all males, or by investing in relationships with preferred males. Finally, I analyzed metabolites of reproductive hormones using …
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Anthropometric measurements, sexual development and serum reproductive hormonal levels among boys in the rural Western Cape
… To investigate the anthrop ometric growth and reproductive hormones alternation of Western Cape Rural boys who are potentially exposed to agricultural pesticides. Methods: A cross-sectional study of 269 boys was conducted in the rural Western Cape in South Africa. Tests included serum …
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Variation in age at menarche and adult reproductive function: the role of energetic and psychosocial stressors
Reproductive ecology has long examined the flexibility of women’s reproductive function in the face of variable environments. The timing of a woman’s first menses, or age at menarche, is both used as a proxy of childhood stressors and correlated with adolescent and adult reproductive function. This …
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Environmental factors, pasture composition, growth rate and puberty in growing Thoroughbreds
… The relationship between IGF-I, and various reproductive hormones has been studied in the adult horse, yet the associations between environmental factors, ADG, and progesterone concentrations demonstrated in growing yearlings further emphasizes the extensive changes occurring during this …
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Estrogen and Cognitive Functioning in the Menopause Transition
… has been devoted to studying the effect of reproductive hormones on cognitive functioning during this transition period. The goal of this study was therefore to improve our understanding of the role that reproductive hormone changes play in triggering perimenopausal cognitive difficulties. …
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