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 “"thermal sensitivity"”.
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Effects of REM Sleep Deprivation on Trigeminal Nerves: Increased Thermal Sensitivity
… (REM) sleep deprivation on trigeminal nerve sensitivity by measuring changes in response to thermal stimuli. This device is now commercially available and sold as an accessory to the Plantar Test (Ugo Basile). Using my device, I found that REM sleep deprivation lowered the activation …
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Mechanisms of thermal sensitivity in rodent primary afferent neurons innervating the skin
… induce pain or cold hyperalgesia, a heightened sensitivity to a painful cold stimulus. It is therefore vital to understand the mechanisms by which cold is signalled under normal conditions and to investigate which changes occur under pathological conditions. The thesis will describe sets of …
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Ecohydrology of Natural and Restored Wetlands in a Glacial Plain
… the hydrogeomorphic controls on seasonal thermal regimes of wetlands were not addressed in prior studies. In this study, temperature regimes at multiple sites under uniform climate and geologic settings were investigated to understand the controls on wetland temperature in several of …
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Thermoelectrochemical model for RFB with an application at a grid level for peak shaving to reduce cost of the total electricity
… for aqueous redox flow battery systems is thermal sensitivity. Oper-ating temperature impacts electrolyte viscosity, species solubility, reaction kinetics,and efficiency. Systems that avoid the need for active thermal management whileoperating over a wide temperature range are needed. A …
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Investigating thermal dependence on monolithically-integrated photonic interconnects
… architecture and system perspectives. High thermal sensitivity of the essential optical ring resonator imposes constraints on the applicability of optical links in the electro-optical systems. To investigate the thermal dynamics as well as to develop advanced ring thermal-tuning mechanisms, …
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Exploitation of fibre characteristics in temperature sensing and radio-over-fibre applications
… wavelength multiplexing capability and high sensitivity to temperature, pressure, strain, vibration and acoustic emission. Moreover, optical fibre sensors are more attractive than the electronics sensors as they can perform distributed sensing, in terms of covering a reasonably large area …
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The Effect of Temperature and Digestion on Metabolism in Black Rat Snakes, Elaphe Obsoleta Obsoleta
… of snake energetics due to the strong thermal dependencies of metabolism. To identify sources of metabolic variation in Elaphe obsoleta obsoleta, I investigated the effects of mass, body temperature, and digestion on oxygen consumption at 20, 25, and 30°C. Mass-specific standard …
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STRUCTURE AND PROPERTIES OF NOVEL ENERGETIC COORDINATION COMPLEXES AND THEIR POTENTIAL AS MAGNETICALLY SWITCHABLE EXPLOSIVES
… allows for more energy release upon combustion. Thermal sensitivity modulation is achieved by use of a magnetic field to stabilize a hexanuclear manganese cluster and increase its initiation temperature by 10.4 ± 3.9 °C. Furthermore, nitrotetrazole ligands were used to synthesize novel energetic …
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Multi-scale hydrogeomorphic influences on bull trout spawning habitat in snowmelt-dominated headwater streams
… at least 25 cm. Groundwater provided substantial thermal moderation of stream water for multiple high density spawning reaches. At the valley-scale, redd occurrence tended to be associated with unconfined alluvial valleys. Many previous studies highlight the thermal sensitivity of bull trout. My …
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Multi-scale hydrogeomorphic influences on bull trout spawning habitat in snowmelt-dominated headwater streams
… at least 25 cm. Groundwater provided substantial thermal moderation of stream water for multiple high density spawning reaches. At the valley-scale, redd occurrence tended to be associated with unconfined alluvial valleys. Many previous studies highlight the thermal sensitivity of bull trout. My …
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Phenotypic Consequences of Gestation Temperature in the Northern Watersnake, Nerodia Sipedon
… from the 26°;C group than from the 29°;C group. Thermal influences were persistent over time across temperature treatments. Snakes from the 23°;C treatment swam slower at both testing ages, exhibited lower defensive behavior scores at 1 week of age, and exhibited lower embryonic survival than …
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Development of a system to measure marine turbulence
… beam is very fragile and displays unpredictable thermal effects. An airfoil probe with semiconductor strain gauges on an aluminium cantilever beam has been developed as an alternative to the piezoceramic beam. The probe was calibrated by exciting it with a known shear generated by the water flow …
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Effects of Temperature on Foraging, Endurance, and Sprint Speed in Agkistrodon Piscivorus and Nerodia Sipedon
… important fitness consequences. Studies on the thermal sensitivity of performance in reptiles are useful in understanding how the thermal environment affects ecological function. I examined the effects of temperature on foraging success and locomotion in two sympatric semi-aquatic snakes, the …
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Natural Variation in Arabidopsis thaliana Growth in Response to Ambient Temperatures
… a QTL analysis to identify the genetic basis of thermal sensitivity. Firstly, fine-mapped QTL were identified for hypocotyl length in response to different temperatures. SMALL AUXIN UPREGULATED RNA 38 (SAUR38) is a novel candidate gene for a QTL. Another major-effect QTL ‘Temp22.2’ was also …
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Idealized modeling of the role of stability and shear on mesoscale gravity wave evolution
… cooling is simulated using an imposed cold thermal. Sensitivity studies examine the response of MGW structure to different thermal and shear profiles where the strength and depth of the inversion are varied, as well as the amount of wind shear. MGWs are characterized in terms of response …
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Biolithography : selective joining using antibody-antigen reactions
… reactions, where the selectively is based on the thermal sensitivity of such proteins. Antibodies and antigens can be chemically immobilized to a variety of substrate materials: polymeric, ceramic and metallic. In the present investigation, antibody coated 1 [mu]m polystyrene beads and antigen …
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Thermal responses of marine phytoplankton: Implications to their biogeography in the present and future oceans
… to examine the global patterns in the realised thermal niche and geographic range of marine phytoplankton. In Chapter 3, I investigated the global patterns of thermal traits, thermal sensitivity, and exposure and vulnerability to warming in marine phytoplankton. In Chapter 4 and 5, I conducted …
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Physiological and behavioural responses to temperature and humidity in fossorial amphibians
… acclimatisation (spring versus autumn) on the thermal sensitivity of metabolism and water loss in Ambystoma maculatum. My findings suggested that acute changes in temperature affected energy and water budgets. However, acclimatory changes in temperature affected metabolism but not water loss. I …
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Writing and characterisation methods for UV-photosensitivity based devices and their applications
… on the exploitation and investigation of photosensitivity mechanisms in optical fibres and planar waveguides for the fabrication of advanced integrated optical devices for telecoms and sensing applications. One major scope is the improvement of grating fabrication specifications by introducing …
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The thermal tolerances and preferences of native fishes in the Cape Floristic Region: towards understanding the effect of climate change on native fish species
… behaviour, and life-histories of aquatic biota. Thermal alteration may therefore affect sensitive fish species. The upper thermal limit, determined via the critical thermal method, has been validated as a measure of thermal sensitivity. To better understand the impacts of climate change on the …
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