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 6 of 6 for “"active motility"”.
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Motility and Force Generation Based on the Dynamics of Actin Gels
… their famous pro-pulsion mechanism leading to active motility on the cellular scale. In nature the generation of force and motility is regulated by actin binding proteins and the mesoscopic shape of the gel. Here we controlled an analyzed the effect of both, protein regulation and gel …
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Collective Phenomena in Active Systems
… investigates collective phenomena in active systems of biological relavance across length scales, ranging from intracellular actin systems to bird flocks. The study has been conducted via theoretical modeling and computer simulations using tools from soft condensed matter physics and …
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Inhibition of Proteus Swarming by the Metabolic Products of Serratia Marcescens
… agar media. Swarming is a cyclic pattern of active motility and stationary growth away from a point of inoculation giving rise to concentric rings of growth on the agar surface (Fig. 1). On media that is exceptionally moist, the concentric rings may be absent and swarming may only appear as a …
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Low-frequency bias-tone effects on auditory-nerve responses to clicks and tones : investigating multiple outer-hair-cell actions on auditory-nerve firing
Active motility in outer hair cells (OHCs) amplifies basilar-membrane (BM) and auditory-nerve (AN) responses to low-level sounds. The recent finding that medial olivocochlear (MOC) efferents (which innervate OHCs) inhibit AN initial peak (ANIP) responses from mid-to-high-level clicks, but do not …
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Tuning of the Active Hair Bundle
… power both spontaneous and evoked movements. Active hair-bundle motility serves two functions: it mechanically amplifies sensory stimuli; and it regulates their transduction into electrical signals that drive the hair-cell synapse. To characterize these two functions, we consider here a model …
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Investigating the suppressive effects of a low-frequency bias-tone on auditory-nerve responses to tail-frequency tones
… OHCs. This voltage change, through OHC electromotility, feeds back energy that amplifies basilar-membrane motion. For AN fibers with CF > 5 kHz (high-CF fibers), the sharp tuning-curve tip region is flanked on its low-frequency side with a broadly-tuned, less-sensitive "tailfrequency" region …