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 “"polar environment"”.
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A genomic analysis using RNA-Seq to investigate the adaptation of the psychrophilic diatom Fragilariopsis cylindrus to the polar environment
… with a silicate cell wall. They often dominate polar marine ecosystems, driving the major biogeochemical cycles in these areas. The obligate psychrophilic diatom Fragilariopsis cylindrus is a keystone species in the Southern Ocean. It thrives both in open waters and sea ice and has become a …
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Studies of Atmospheric Ozone and Related Constituents in the Arctic and at Mid-latitudes
… spectrometers (GBSs) were installed at the Polar Environment Atmospheric Research Laboratory (PEARL) in the Canadian High Arctic (80.1o N, 86.4o W). These two instruments have been used to measure stratospheric trace gases since 1999 and 2006 respectively. In 2010 and 2014, two …
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Identification Of Psychological Stressors For Long Duration Space Missions: Psychological Stressors Among Five Astronauts And Cosmonauts
… Those that are present primarily focused on the polar environment as a space analogue. In order to answer the question of how stressors may affect future astronauts and cosmonauts, the evolutoinary reasons behind stress must be considered not only the type and intensity of the stressors.</p> …
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ECOLOGICAL AND PHYSIOLOGICAL MECHANISMS OF BIOLOGICAL RHYTHMS IN A POLAR-BREEDING SEABIRD
… for scheduling activity in predictably cyclic environments. During summer above the polar circle, the primary timing cue, the geophysical light-dark cycle, is highly attenuated or absent, yet some animals will exhibit diel rhythms of behavior and physiology under these conditions. How and why …
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Studies of Stratospheric and Tropospheric Ozone, NO2, and BrO Using UV-Visible Spectroscopy in the Arctic and at Mid-latitudes
… or GBSs) have been taking measurements at the Polar Environment Atmospheric Research Laboratory (PEARL, 80.05°N, 86.42°W) since 1999 and 2006, respectively.The GBS dataset, combined with other measurements at PEARL, was used to validate ozone and NO2 measurements from the Atmospheric Chemistry …
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Expression of cysteine-rich pig gastric mucin (Muc5AC) domains in Pichia pastoris and their pH-dependent properties
… underlying gastric epithelium from the luminal environment of acid, enzymes, bacteria and shear forces. Pig gastric mucin (PGM) forms a viscoelastic gel exhibiting a sol-gel transition at the low pHs found in the stomach. Our laboratory has demonstrated that the non-glycosylated cysteine-rich …
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Static and dynamic properties of soluble surfactants at the air/water interface
… and a hydrophobic tail. The headgroup is polar or ionic and likes water, the tail is typically an aliphatic chain that cannot be accommodated in a polar environment. The prevailing molecular asymmetry leads to a spontaneous adsorption of amphiphiles at the air/water or oil/water …