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 14 of 14 for “"sensory transduction"”.
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Sensory Transduction in Enteroendocrine Cells
… cell models provide valuable insight into transduction mechanisms, studies on primary cell cultures remain paramount.
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Robustness Enhancement of Sensory Transduction by Hair Bundles
… be made robust to parameter perturbation. The sensory hair cells of the cochlea are physiologically vulnerable: small changes in parameter values could compromise hair cells' ability to detect stimuli. Most ears, however, remain highly sensitive despite differences in their physical properties. …
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Chemotactic Sensory Transduction in Bacillus Subtilis: A New Enzyme and a New Pathway
… therefore, B. subtilis must employ a different sensory circuit to mediate such chemotaxis. The results in this study indicate that the sensory circuit mediating chemotaxis towards PTS carbohydrates utilizes the cytoplasmic methyl-accepting subdomain of McpC as a sensor for PTS stimuli. This …
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Control of Chey-P Levels in the Chemotactic Sensory Transduction Cascade of Bacillus Subtilis
… Since environments are ever changing, the signal transduction mechanism controlling this behavior has to be able to respond on a time scale of seconds. This is achieved by phosphorylation of an intracellular signaling molecule CheY (to generate CheY-P) in response to changing environments. As …
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Characterization of the Chemoreceptors in the Bacillus Subtilis Chemotaxis System
… systems in the B. subtilis chemotactic sensory transduction.
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Hair Bundles of a Jawless Vertebrate Employ Tetrapod-Like Tuned Mechanical Amplification
… instead active participants in the process of sensory transduction. They expend chemical energy to exert mechanical work, and can harness this active process to amplify their mechanical response to stimuli. Furthermore, the active process is tuned, allowing a given hair bundle to preferentially …
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Sensory and Neuromodulatory Entrainment of Foraging States in C. Elegans
… sensed physiological needs and external sensory cues with ongoing internal state. Consistent with this, I find that animals acutely unable to eat food drastically increase high arousal behavioral states and food leaving behavior, motivated by internal sensing of the absence of food. I …
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A Hydrodynamic Sensory Antenna Used By Killifish for Nocturnal Hunting
<p>The perception of sensory stimuli by an animal requires several steps, commencing with the capture of stimulus energy by an antenna. As the interface between the physical world and sensory transduction, the antenna modifies the stimulus in ways that enhance the animal's perception. For example, …
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Stabilization of the Cardiac Nervous System During Cardiac Stress Induces Cardioprotection
… secondarily affecting the primary afferent sensory transduction. In response to cardiac stressors, reflex activation of efferent activity modifies mechanical and electrical functions of the heart. Excessive activation of neuronal input to the cardiac nervous system can induce arrhythmias. …
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Biochemical and molecular characterization of methyl-accepting chemotaxis proteins from Bacillus subtilis
… with the biochemical changes associated with sensory transduction.
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Neuroepithelial Signalling in the Colon
… a relative paucity of TRPV4 mRNA within colonic sensory neurons in contrast to the expression of other algogenic receptors and the considerable stimulatory effect of TRPV4 on colonic afferent activity, indicating that non-neuronal cells such as those of the gut mucosa may also contribute to …
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Investigation of the roles of CheD in the Bacillus subtilis chemotactic signal transduction
… The two-component based chemotaxis signal transduction system allows flagellated bacteria to sense their surrounding chemical environment and move towards more favorable conditions. The attractant signals can be sensed by transmembrane chemoreceptors, and then transmitted to the histidine …
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ACID-SENSING ION CHANNELS: TARGETS FOR NEUROPEPTIDE MODULATION AND NEURONAL DAMAGE
… in the peripheral nervous system. In rodent sensory neurons ASICs contribute to sensory transduction and pain. However, little was known about human ASIC channels in sensory neurons. In an effort to address this disparity, I cloned and characterized a novel human ASIC1 transcript variant …
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Neuronal and Molecular Basis of Nociception and Thermosensation in Drosophila melanogaster
… from the activation of pain detecting peripheral sensory neurons (nociceptors) that can detect noxious mechanical, thermal or chemical stimuli. On the other hand, animals also have the ability to discriminate innocuous temperatures and to direct their locomotions to their favorable environmental …