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 595 for “"elevations"”.
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Temperature elevations due to NIR exposure in the brain tissue
Near infrared (NIR) lasers have been used in medical applications both for diagnostic and therapeutic purposes. Temperature elevation profile inside the tissue is a critical factor that needs to be better understood in these applications. The purpose of this study is to determine the temperature …
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Nicotine withdrawal causes transient elevations in brain stimulation reward thresholds
Nicotine withdrawal is associated with dysphoria and depression in humans. In rats, withdrawal from amphetamine, cocaine, or morphine attenuates the motivation to respond for rewarding electrical brain stimulation. It has been proposed that such attenuation of brain stimulation reward reflects …
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Snow Accumulation and Melt Timing at High Elevations in Northwest Montana
The sensitivity of snowmelt driven water supply to climate variability and change is difficult to assess in the mountain west, where strong climatic gradients coupled with complex topography are sampled by sparse ground measurements. We developed a snowmelt model, which ingests daily satellite …
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Snow Accumulation and Melt Timing at High Elevations in Northwest Montana
The sensitivity of snowmelt driven water supply to climate variability and change is difficult to assess in the mountain west, where strong climatic gradients coupled with complex topography are sampled by sparse ground measurements. We developed a snowmelt model, which ingests daily satellite …
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Gender Differences In Cardiomyocyte Remodeling and Adhesion In Response to Chronic Elevations In Myocardial Stress
<p>Estrogen has been documented to attenuate tumor necrosis factor α (TNF-α) mediated proinflammatory effects on the cardiovascular system. The first half of this study sought to determine whether gender difference exists in cardiomyocyte remodeling during chronic volume overload (CVO) induced by …
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The Silver Fraction - A Weathered Inebriation: Plans, Elevations, Sections, Details, Models and Texts for a Brewery and a Biergarten on the bank of the Potomac River, Alexandria, Virginia
Architecture is an exhaustive act. With the Herculean efforts of the patron, the architect and the builder, a building comes into being. Materials are collected and transformed in order to create a place for Man to dwell. That is, materials occurring in their natural state are transformed by the …
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A Survey of Temperatures of Adult Medical Patients
… selected hospital, (2) to find the incidence of elevations of 100 degrees Fahrenheit or above after being below 100 for twenty-four hours or longer. and (3) to find what factor or factors, if any, could be used to identify these patients.</p> <p>The study was conducted on the medical units of a …
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Hummingbird Hovering Energetics and Flight Capacities Across Elevational Gradients
High elevations are characterized by reductions in environmental parameters, including oxygen availability and air density. This can be problematic for volant species, as sustaining flight in hypodense air is more energetically demanding relative to normodensity. Animals meet these challenges by …
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Spartina Alterniflora Productivity and Salt Marsh Stability Relative to Marsh Platform Elevation
… a function of relative elevation. Marsh surface elevations were extracted from LIDAR data collected in 2003. An optimal elevation for <em>Spartina</em> standing biomass was identified at about 35 cm NAVD88. The upper and lower elevation limits for <em>Spartina</em> are related to tidal flooding …
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Nucleus accumbens dopamine and investigatory behavior : modulation by the ventral subiculum of the hippocampus through the dopamine cell bodies of the ventral tegmental area
… NAS and the DA cell body region of the VTA. The elevations in VTA DA reflect dendritically released DA and imply an increase in dopaminergic cell firing; this increase was confirmed by single unit recording of identified VTA dopaminergic neurons. VS-evoked elevations in NAS dopamine were blocked …
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RF and GIS: Field Strength Prediction for Frequencies between 900 MHz and 28 GHz
… the Bresenham algorithm and the corresponding elevations are obtained from a 30m DEM base map. The base map was generated by the procedure outlined in Rose (2001) and includes building elevations. The effect of Fresnel zones on prediction accuracy is considered. The effect of interpolating …
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Competitive status of red spruce (Picea rubens) and Fraser fir (Abies fraseri) at ecotonal transitions in southern Appalachian sky islands
… dominant. Fraser fir dominates at the highest elevations with spruce-fir and spruce-dominated stands at middle elevations and hardwoods associating at lower elevations. A primary concern is encroachment of hardwoods upslope as climate change-driven milder temperatures and high precipitation …
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Packrat middens: A tool for environmental reconstruction and human adaptation analysis
… analogs to estimate the modern equivalent of the elevations of ancient middens. Differences of these reconstructed vegetation elevations relative to modern elevations of vegetation are ordered chronologically, after correction for modern midden data, creating a paleoclimate reconstruction. The …
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The MMPI-2 restructured clinical (RC) scales and measurement of depression in epilepsy
… the conversion V profile tended to have large elevations on RC1 in the absence of comparable elevations on RCd and RC2, and a low score on RC3. Those with a floating profile showed only slight elevations on RCd, RC1 ("health complaints"), RC2, and RC8 ("aberrant experiences"). Subjects …
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Species Distribution and Richness Patterns of Bird Communities in the High Elevation Forests of Virginia
… are governed by large scale processes. The high elevations forests in the Southern Appalachians represent a series of naturally fragmented islands that harbor many isolated populations of species at the southern limits of their range. Understanding the governing forces of population dynamics in …
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Co-Occurring Social Anxiety and Attention-Deficit/Hyperactivity Disorder (ADHD) Symptoms in Emerging Adults: Links with Working Memory and Social Functioning
Adolescents and emerging adults with co-occurring elevations on attention-deficit/hyperactivity disorder (ADHD) and social anxiety symptoms often display poorer social skills and overall social functioning when compared to individuals with elevations on just ADHD or social anxiety symptoms. That …
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Birds on the move : Understanding elevational distributions and shifts of birds across European mountains
… warming is expected to drive species to higher elevations, yet, many species do not move as fast as expected, possibly because of habitat limits, microclimatic conditions, or species traits. Understanding how abiotic factors such as climatic trends, habitat characteristics, and species traits …
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A Survey of Temperatures of Adult Medical and Surgical Patients
… and (2) to show that factors of beginning elevations can be identified without checking patients’ temperatures more than once daily.</p> <p>A survey was conducted of fifty-nine adult medical and forty adult surgical patients' temperatures from the time they were admitted until they were …
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