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 8 of 8 for “"UV protection"”.
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Enzyme structure, function, and evolution in flavonoid biosynthesis
… variety of roles in plant physiology including UV protection, pigmentation, and defense against herbivores and pathogens. Flavonoid diversity has increased in conjunction with land plant evolution over the past 470 million years. This dissertation examines the structure, function, and evolution …
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The Use of Sphingomyelin to Protect Against UV Induced DNA Damage in Human Keratinocytes
… serious condition caused by chronic ultraviolet (UV) exposure that leads to DNA damage in skin. UV radiation has the potential to lead to DNA damage, which triggers biochemical pathways within a cell. The result is that the cell either undergoes cell cycle arrest, giving the cell time to repair …
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UVB radiation; a specific regulator of the growth and development of Arabidopsis thaliana
Research into the impacts of UVB radiation on plants and ecosystems began in the 1970’s in answer to concerns about the degradation of the stratospheric ozone layer. Early research focused solely on UVB as an agent of plant stress but recently the thinking surrounding UVB has undergone a paradigm …
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The role of γ-polyglutamic acid in a circular economy: cost-effective production and wide-ranging applications of a bio-derived, biodegradable, and nonimmunogenic biomaterial
… acid in cosmetics was evaluated (Chapter 4). UV protective effects of γ-PGA and seaweed rich, crude γ-PGA extracts was assessed and quantified (Chapter 4) and its potential interaction with skin keratinocytes was quantified. γ-PGA ability to interact with ions was assessed in the context of …
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Ensuring the Stability of Natamycin on Shredded Cheese
… cheese Natamycin is degraded by ultraviolet (UV) light at wavelengths of 350 nm and below. Typical packaging applications do not provide adequate UV protection causing natamycin to degrade. This work was undertaken to determine the efficacy of UV absorber film to prevent UV light degradation …
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Microstructural Analysis and Assessment of the Anterior Ocular Surface Damage Caused by Ultraviolet Light from Natural and Artificial Sources // Възможности за микроструктурен анализ и оценка на уврежданията на предната очна повърхност от ултравиолетови лъчи с естествен и изкуствен произход
Трудът оценява и описва микроструктурните промени на очната повърхност, получени в отговор на излагане на УВ светлина от естествен и изкуствен източник. Резултатите са съпоставени със слънцезащитните навици като се проследява тяхната динамика, използвайки in vivo конфокална микроскопия. За период …
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Evaluating the impact of ultraviolet light on chemical and mechanical properties of human scalp hair through controlled and natural experiments
… from exposure to environmental factors such as UV radiation, have been the focus of some studies. Even though there are a range of environmental variables that could be worthy of consideration, understanding the impact of UV radiation is increasingly important given the inevitability of exposure …
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Subcellular localisation and functional analysis of UVR8, a UV-B specific signalling component in Arabidopsis
UV-B is an integral component of the daylight spectrum that regulates plant gene expression and development, but very little is known about how plants perceive UV-B. Although UV-B-induced damage and repair have been extensively investigated, the mechanisms by which UV-B is perceived as a signal, …