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 88 for “"Lichen"”.
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Pattern formation in lichen
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
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Altered Vulvar Microbiomes in Vulvar Lichen Sclerosus
BACKGROUND: Vulvar lichen sclerosus (VLS) is a chronic and progressive dermatosis that most commonly affects the anogenital region of postmenopausal women. VLS etiology is incompletely understood, though a role for immune system dysregulation has been suggested given associations with autoimmune …
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Spectroscopic and synthetic studies of lichen metabolites
Lichen metabolites from various Nephroma and Pseudocyphellaria species have been subjected to a number of spectroscopic and synthetic investigations. Hypoiodite reaction of 15α-acetoxyhopan-17(21)-en-24-ol yielded a complex mixture of products, while similar reaction of 7-oxohopan-22-ol resulted in …
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Altered Vulvar Microbiomes in Vulvar Lichen Sclerosus
The general metadata -- e.g., title, author, abstract, subject headings, etc. -- is publicly available, but access to the submitted files is restricted to UT Southwestern campus access and/or authorized UT Southwestern users.
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The Molecular Biology of Lichen Symbiosis and Development
<p>Lichen-forming fungi employ a successful mode of nutrition as symbiotic partners with green algae and/or cyanobacteria (the photobiont). Nearly one fifth of all known fungi are obligate lichen formers, yet we know little of how they find compatible partners and establish long-lived symbiotic …
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Metabolic differentiation in the lichen Cladonia portentosa from different wet nitrogen deposition regimes’
… chemical parameters in the common heathland lichen Cladonia<br/>portentosa. A more detail analysis of alterations in the metabolic pathways in<br/>Cladonia portentosa collected from different locations within the UK was<br/>undertaken by applying the environmental metabolomics approach. …
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INTERACTIONS OF ENVIRONMENTAL POLLUTANTS WITH MICROALGAE AND LICHEN: INSIGHTS FROM MULTI-PLATFORM METABOLOMICS
… of environmental pollutants with microalgae and lichens were investigated using multi-platform metabolomics. In chapter 2, differentiated metabolites in microalgae Chlorella vulgaris and Scenedesmus obliquus after exposure to triphenyl phosphate revealed perturbation in respiration, …
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Performance of Lichen Species as Air Pollution Biomonitors in the Greater Auckland Urban Area, New Zealand
… and require high technical skills to operate. Lichens as biomonitors are an effective complementary because they accumulate pollutants in line with atmospheric concentrations. This research assesses the performance of lichens as air pollution biomonitors. The study was conducted in New Zealand, …
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The ecology of corticolous lichen communities at various altitudes on Salt Pond Mountain, Giles County, Virginia
A study was conducted of the corticolous lichen community of Q. rubra on the southeast face of Salt Pond Mountain, Giles County, Virginia. These communities were examined according to altitude, vertical level on the tree, total lichen cover, lichen growth form composition, and the presence and …
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Impacts of rock climbing on lichen and bryophyte communities at McLellan Rocks and Sharon Climbing Areas, Spokane County, WA
<p>Saxicolous lichens and bryophytes dominate cliff communities of Eastern Washington State. A recent rise in the outdoor recreation of rock climbing has caused major concerns over its potential negative impacts on cliff-dwelling biodiversity. To better understand how rock climbing is impacting …
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Site factors determining epiphytic lichen distribution in a dieback-affected spruce-fir forest on Whiteface Mountain, New York
… und Balsamtanne (Abies balsamea) miteinander verglichen. Die geschädigten Rotfichten sind flechtenreicher als die gesunden und die Balsamtannen sind flechtenreicher als die Rotfichten. Arthonia caesia war die dominante Flechtenart auf lebenden Tannen sowie auf lebenden und toten Fichten. Tote …
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Lichens Of Ultramafic Rocks: A Multidisciplinary Approach To Understanding The Ecology Of An Understudied Organism In A Well-Studied System
<p>Lichens are among the most prominent and successful life forms of metal-rich habitats, including ultramafic rocks and soils; however, research on lichens of ultramafic habitats is limited, especially on the North American continent. A review of the published literature on lichens of ultramafic …
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