Global ETD Search
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 20 for “"biological stress"”.
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Investigating the Effects of Markers of Biological Stress on the Association between Adverse Childhood Experiences and Central Artery Stiffness
… yet been fully elucidated; however, increased biological stress has been postulated to play a critical role. Recently, two markers have emerged as being potentially useful measures of biological stress—telomere length (TL) and mitochondrial DNA copy number (mtDNAcn). Here, the potential effects …
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"Nice ink, man": a biocultural, mixed methods approach to tattooing as costly honest signaling among southern women
… cultural model of tattooing on psychological and biological stress in a sample of Southern tattooed women. The handicap principle of sexual selection states that a high risk ornament is utilized by a mate to show high-quality health. The handicap principle in regard to tattooing would mean that …
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The influence of cognitive biases on psychophysiological vulnerability to stress
… bias) report more psychological ill-effects of stress than those with balanced or positively-skewed inclinations. Cognitive Bias Modification (CBM) techniques improve maladaptive biases through implicitly-based association learning, with induced positive biases buffering the future perception of …
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Cameras as Cultural Stressors in Changing the Immune System: Implications for NASA’s Astronaut Program
… also been numerous studies on the effects of stress on the body and how it effects the immune system. No one yet has attempted to link the two and how this could influence astronaut health in current or future missions. This study used salivary cortisol concentrations run through an ELISA for …
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Development of an unsteady state model for the tank bioleaching of sulphide mineral concentrates in flow reactor systems
… exist that can be maintained by application of biological stress trajectories. Reactor models are developed for the purpose of optimising plant operation, understood here as maximising the production rate. Complicating this attempt are a) the non-linear dynamics associated with the kinetics and …
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Stress Reactivity and Cognitive Vulnerability for Depression in Adolescence
… supported risk factors for depression: stress reactivity and cognitive vulnerabilities (CV). To varying degrees, these factors have been examined throughout development; yet, these bodies of literature have been surprisingly separate, which may contribute to the disappointing performance …
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Dynamics of Cell Fate Decisions Mediated by the Interplay of Autophagy and Apoptosis in Cancer Cells: Mathematical Modeling and Experimental Observations
Autophagy is a conserved biological stress response in mammalian cells that is responsible for clearing damaged proteins and organelles from the cytoplasm and recycling their contents via the lysosomal pathway. In cases where the stress is not too severe, autophagy acts as a survival mechanism. In …
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The Shortcomings of Maize: Using Tipu to Assess Maize Consumption and its Impact on Stature and Limb Proportions Among the Maya
… of growth and development by suggesting that biological stress manifests not only in disproportional upper:lower body ratios but in disproportionality <em>within</em> legs.</p>
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Relationships between psychological factors and immune dysregulation in context: a life-course approach
… informed by theories about the life-course, the stress process, the stress response and the inflammatory theory of depression. The first two empirical chapters provide evidence about the contribution of psychosocial factors to immune dysregulation. Immune dysregulation is measured by onsets of …
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Ultrasonication as an abiotic elicitor - effects on antioxidant capacity and overall quality of romaine lettuce
… researches emphasizing on stimulating the biological system of food itself to achieve an enhanced postharvest quality. It is hypothesized that low acoustic power density (APD) ultrasound, as a form of physical energy, could stimulate the biological stress defense response system of a plant …
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Changes in Stormwater Thermal Loads Due to Bioretention Cells
… sufficient to reduce runoff temperatures below biological stress thresholds. In addition, previous literature suggested that deeper cells may provide more cooling benefits as deeper soil layers are cooler and have more stable temperatures. In this study, the deeper cell was not as effective in …
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LC-ESI-MS/MS quantification of hair cortisol, cortisone and DHEA in combined oral contraceptive users
… COC adverse effects coincide with symptoms of stress-related illnesses, including insulin resistance and hypertension, it is believed that these adverse effects are a result of chronic biological stress from long-term COC use and that COC users are at greater risk of developing stress-related …
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Nanoparticle systems that exploit host biology for diagnosis and treatment of disease
… exhibiting a breadth of physical, chemical, and biological properties that have tremendous potential to improve the detection and treatment of disease. Despite this progress, biomedical nanotechnologies have yet to approach the same level of complexity as biological systems, which produce …
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LIFE EVENTS, STRESS AND COPING
… as well as information on predisposing, stressful or precipitating life events. Vulnerability for adverse life events by measuring biological stress markers among suicide attempters was tested. High catecholaminergic markers in CSF (MHPG) and urine (NA/A) were found in suicide attempters, …
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Estradiol and Daily Affective Experiences in Trauma-Exposed Women
… is associated with enduring changes in two biological stress systems: the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. In women, activity in both systems is additionally modulated by fluctuations in levels of sex hormones (e.g., estradiol), which could …
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The Medicalization of Stress: Hans Selye and the Transformation of the Postwar Medical Marketplace
… endocrinologist Hans Selye's concept of biological stress, guiding him to develop a highly individualistic and commercially-appealing disease model that complimented major interests of the postwar medical marketplace: the state, the corporation and the consumer. In the mid-1930s Selye …
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Maternal stress signature and infant neurodevelopment: determining the beneficial effects of human milk oligosaccharides - an in vitro study
… post-birth. Environmental insults, such as stress, negatively impact both foetal neurodevelopment and placental development and function. Specifically, stress has been linked to an altered maternal gut barrier, an increase in inflammatory factors in maternal blood and a shift in tryptophan …