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.
Results
Showing 1 to 20 of 1388 for “"mammals"”.
-
WHALES AND OTHER MAMMALS: ESSAYS
<p>This collection of essays seeks to examine, and comment on, the relationships in our lives: to ourselves, to family, to strangers, to the natural world around us. These essays interrogate, however inadequately, how we relate and what that relation means within the larger context of history and …
-
Cellular Activities During Aging in Mammals
… much is known about manifestations of ageing in mammals, the fundamental cause of ageing has remained obscure. Review of a widely scattered literature has demonstrated a histotypic selectivity in the effect of ageing on cell activities. Several recent examples have shown that certain age changes …
-
Regulation of surface temperature in mammals
Surface temperatures of 56 mammal species were measured using infrared-thermography (IRT) at ambient temperatures from $-$5 to 35 C. Not all species were available at all temperatures. All of the animals' responses were evaluated in terms of effect on heat exchange and thermoregulatory ability. The …
-
Tidal Energy, Underwater Noise and Marine Mammals
… effect of tidal-stream devices on marine mammals. Collision risk is often cited as a key concern. Therefore, my premise was - for marine mammals to avoid a collision with a marine renewable device (assuming they are on a collision course) they must first detect the device. It is well …
-
Studies on protozoan parasites of small mammals
… several different protozoan parasites of small mammals,moles (Talpa europaea), bank voles (Clethrionomys glareolus), fieldvoles (Microtus agrestis), field mice (Apodemus sylvaticus), mice,rats and rabbits are described in this study.In the mole (Talpa europaea) three parasites were …
-
Studies on Fertilization in Vitro in Mammals
The objective of this thesis was to examine, using light and electron microscopy, the behavior of the sperm-egg interaction: (a) during the normal fertilization process; and (b) when the fertilization process was modified chemically and physically. Chemical modification of the fertilization process …
-
Functional large non-coding RNAs in mammals
It is now clear that RNA is more than a messenger and performs vast and diverse functions. These functional RNAs include the ribosomal, transfer, and splicing-associated RNAs along with a cast of tiny RNAs, including microRNAs and other families. In addition to these classic examples, there were a …
-
The evolution of mRNA splicing in mammals
… investigations into the evolution of splicing in mammals. I first investigate a small class of alternative splicing events, tandem splice sites, and show how they are used to introduce and remove coding sequence in a species-specific manner. I then describe the generation and analysis of a large …
-
Bartonella in Small Mammals from Montana and Idaho
… pathogens that infect a diverse range of small mammals, yet their prevalence and distribution remain understudied in many host species. In this study, <em>Bartonella</em> infection was assessed across multiple small mammal species, revealing an overall prevalence of approximately 37% based on …
-
Folate Metabolism in Normal and Tumour Bearing Mammals
The whole animal metabolism and physiological disposition of folate derivatives has been studied in normal and tumour bearing rodents. Within 48 h of administration of radioactive folate tissue radioactivity was incorporated largely into high molecular weight folate conjugates. The major derivative …
-
Swimming sentinels : climate clues from stranded marine mammals
… puzzled by a spate of dead and dying marine mammals. These events are so complicated- influenced by disease, biotoxins, ecosystem changes, and human interaction-that their cause can appear impossible to untangle. Yet a growing body of evidence strongly suggests that climate change has a hand …
-
Small regulatory RNAs in mammals : genomics, function and evolution
… explores two aspects of small regulatory RNAs in mammals: (1) the genomic origin of mammalian piwi-interacting RNAs (piRNAs), (2) the evolutionary and functional implication of the seed-based target recognition mechanism of microRNAs (miRNAs). First, we participated in the discovery of mammalian …
-
A preliminary distributional list of the mammals of Virginia
The objective of this study has been to list the mammals of Virginia and determine their intra-state distribution in so far as possible in the time allotted. Four procedures have been followed in conducting the study, namely, examination of available literature, collecting study material, …
-
Impact of clearcutting on indigenous mammals of southwest Virginia
… make-up of the faunal segment of the community. Mammals generally associated with older plant communities were either absent in the 2-yr cut, or were infrequently captured and rarely observed during the snow track counts. Other species increased in relative numbers over the uncut the more shade …
-
A COMPARATIVE ANALYSIS OF INTRACELLULAR CHOLESTEROL ESTERIFYING ENZYMES IN MAMMALS
In higher eukaryotes, intracellular cholesterol esterification is catalyzed by two isoforms of acyl-CoA:cholesterol O-acyltransferase (ACAT) enzymes. Functional studies indicate that selective inhibition of ACAT2 prevents progression of atherosclerosis whereas deletion of ACAT1 is deleterious in …
-
Mechanisms of sound localization in mammals: ageing, dynamics and adaption
Many mammals assess the differences in timing and level of sounds at the two ears in order to determine the azimuthal location of a sound source. These binaural cues play an important role in the ability of animals, including humans, to orient and communicate. Since the auditory scene is not static …
-
Fish and mammals of the lower Calaveras River, Stockton, CA
… study provides data about the current fish and mammals found in the Lower Calaveras River prior to any restoration efforts. Fish were sampled from February 2008 to February 2009 using a seine net and gill net. Fish were identified to species and length measurements and abundance were recorded. A …
Page 1 of 70