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 31 for “"sunlight exposure"”.
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The association between circulating vitamin d levels and body composition in collegiate female athletes
… vitamin D concentrations, vitamin D intake, sunlight exposure, BMI, and body fat percentage in both indoor and outdoor female collegiate athletes during fall and spring seasons. Healthy collegiate female athletes, between the ages of 18-22, had BMI calculated from anthropometric measurements, …
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Attitudes and Behaviors of Adolescents toward Sunbathing and Sunscreen Use.
… that sunscreen partially allows for longer sunlight exposure resulting in higher amounts of UV radiation exposure. Participants who were more likely to wear sunscreen were likewise more likely to spend more time in the sun and to sunburn more frequently.</p>
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Deep Learning of Semantic Image Labels on HDR Imagery in a Maritime Environment
… One particular challenge is the effect of direct-sunlight exposure and specular reflection causing degradation of camera reliability. It is for this reason then, in this work, the use of High-Dynamic Range imagery for deep learning of semantic image labels is studied in a littoral environment. …
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Developing a simulation-based framework for healing building envelopes in healthcare design
… as spatial Daylight Autonomy (sDA) and Annual sunlight exposure (ASE). By using optimization tools such as Colibri and visualization tools like Design Explorer, a wide range of building envelope options are evaluated for different orientations of patient rooms. An integral part of this research …
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Persistence of Bacteroides ovatus under simulated sunlight irradiation
… bacteria species, was evaluated under simulated sunlight exposure and conditions similar to surface water and seawater. By combining propidium monoazide (PMA) treatment and quantitative polymerase chain reaction (qPCR) detection, the decay rates of B. ovatus were determined in the presence of …
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Sunlight'S Influence On Grapevine Powdery Mildew: Direct Effects On Pathogen Development And Attendant Consequences Of Canopy Management And Vineyard Variability
Sunlight inhibits powdery mildew development through at least two mechanisms, i.e., UV radiation's damaging effects on the exposed conidia and thalli of the pathogen and through elevating the temperature of irradiated tissues to a level supraoptimal or inhibitory for pathogen development. …
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Epoxy Siloxane Self-Cleaning Coating using F64PcZn/TiO2 Photocatalyst Composite
… material. After 11 weeks of atmospheric sunlight exposure, the coating containing the composite displayed a small drop in impedance value but still remained >10 GOhm cm<sup>2</sup>, indicating the formation of a strong barrier that is able to protect the underlying metal surface. A …
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The Effect of Acute Bright Light Exposure on Social Affiliation
… point about the direct effects of bright light exposure on social interaction. Accordingly, the present study - utilizing a sample of young adults endorsing at least mild seasonal fluctuations in clinically relevant domains - examined the acute effects of a single 45-minute session of bright …
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The state of prisoner dietary health and the impact of dietary interventions on prisoner health, wellbeing and behaviour
… to obtain from diet, and mainly acquired from sunlight exposure, prisoners are highly vulnerable to deficiency. This PhD aims to: (I), systematically review nutrition studies in prisons, with a focus on mental health, (II) assess how the impact of the food environment on prisoners’ health and …
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Optimizing grape cluster exposure to increase desirable aroma compounds and decrease disease severity
By increasing fruit exposure to sunlight and influencing fruit development, leaf thinning in the fruit zone can improve grape quality and lower disease incidence; however, further investigations on the timing, varietal response and intensity are needed to optimize results and to better understand …
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Vineyard soil matters: exploring the influence of soil physical and chemical properties on Eastern U.S. grape production
… explanatory variables including crop load and sunlight exposure of fruit. Overall, this research increased our understanding of the soil properties that influence vine growth and fruit chemistry in the Eastern US. The results will help growers improve sampling methods, fruit chemistry, and …
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Connecting consumer plastic formulations to marine fates and impacts
… (PE) bag formulations, degradation by sunlight, and dissolved organic carbon (DOC) release to seawater. I found that the bags contained 15-36% inorganic additives, mainly calcium carbonate and titanium dioxide (TiO2). Bags and pure PE produced 3- to 80-fold more DOC during sunlight …
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Quantifying the effects of sunlight on the fate of oil spilled at sea
Oil spilled at sea is transformed by sunlight-driven photochemical reactions. The transformed oil has different properties and behavior in the environment compared to the fresh oil, resulting in different fates and effects. My work in this thesis was to put numbers on these changes, with the goal …
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A Contemporary Appraisal of Ocular Melanoma in New Zealand (Aotearoa)
… to a population change in behaviour towards sunlight exposure, following mass health campaigns directed at reducing cutaneous melanoma. Whilst these studies provide a strong foundation on the epidemiology, referral patterns, investigations and treatment outcomes for ocular melanoma in NZ, …
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Melanocyte survival and response to treatment in Vitiligo Patients
… or 5% khellin cream in combination with daily sunlight exposure for 3 months and their clinical response was then assessed and correlated to the lesional melanocyte status. A good response (>50% repigmentation) was found in 3/5 patients demonstrating both tyrosinase and TRP-2 gene expression, …
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Mechanisms of atopic dermatitis and allergy development in African (AmaXhosa) children between 12-36 months of age
… that the changing diversity of environmental exposures, diet, and lifestyle factors across African societies might provide unique disease promoting effects in populations where a low risk of developing AD and allergic disease was previously documented. To identify novel immunological endotypes …
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Connecting Consumer Plastic Formulations to Marine Fates and Impacts
… (PE) bag formulations, degradation by sunlight, and dissolved organic carbon (DOC) release to seawater. I found that the bags contained 15-36% inorganic additives, mainly calcium carbonate and titanium dioxide (TiO2). Bags and pure PE produced 3- to 80-fold more DOC during sunlight …
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Quantifying the effects of sunlight on the fate of oil spilled at sea
Oil spilled at sea is transformed by sunlight-driven photochemical reactions. The transformed oil has different properties and behavior in the environment compared to the fresh oil, resulting in different fates and effects. My work in this thesis was to put numbers on these changes, with the goal …
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Investigating the Impact of Urban Tree Planting Strategies for Shade and Residential Energy Conservation
… the effects of tree form, tree placement, and sunlight exposure on shade provision for a residential structure model. Simulation results affirmed the conventional strategy in northern latitudes that recommends planting shade trees on the east or west aspect for maximizing beneficial shade while …
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A global sensitivity analysis of solar virus inactivation modeling
… pose a substantial threat to human health. Sunlight-mediated inactivation of waterborne pathogens has been widely studied in natural surface waters, and it has been leveraged as a low-cost approach to disinfection for drinking water and wastewater treatment. Solar-driven disinfection systems …
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