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 “"reversal frequency"”.
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Influence of pH and protein ChePep on motility of Helicobacter pylori
… were performed. The mutant ΔChePep shows higher reversal frequency but similar rotation rate as compared with WT. The drastic increase of reversal frequency in ΔChePep reveals the malfunction of chemotaxis system of ΔChePep whose flagellar rotation are over-active.
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Mathematical modelling of motility regulation in Myxococcus xanthus
… feature of M. xanthus motility is the periodic reversal of its direction of movement. The reversal frequency is influenced by chemical and mechanical cues in the surrounding environment. The modulation of the reversal frequency upon physical contact between cells is believed to be a key factor …
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Independence and interdependence: signal transduction of two chemosensory receptors important for the regulation of gliding motility in Myxococcus xanthus
… body formation. The Frz pathway controls reversal frequency, which is fundamental for directed movement by this surface-gliding bacterium. In addition, both pathways are involved in the chemotactic response towards several phosphatidylethanolamine (PE) species such that the Dif pathway is …
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Altered Decision Behavior of Dopamine Receptor Knock-out Mice in a Free Binary Choice Task
… learning task with progressively increasing reversal frequency and in a dynamic foraging task. Performance of D2R-KO mice was progressively impaired in an instrumental learning task as the frequency of reversal increased and profoundly impaired in a dynamic foraging task even with prolonged …
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An investigation into the mode of action of the anthelmintic emodepside: a molecular, pharmacological and electrophysiological characterisation
… mutants are reported to have an increased reversal frequency and an increased sensitivity to the acetylcholine esterase inhibitor aldicarb (Wang et al 2001). Using these phenotypes as a read out of SLO-1 function, the relationship between emodepside sensitivity and SLO-1 function was …
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Biosphere-Atmosphere Exchange of Peroxyacetyl Nitrate: Development of a Flux Measurement System and its Application on a Grassland Ecosystem
… introduce a significant lag time error and high frequency attenuation effects. The simulation of REA fluxes of several scalar quantities revealed that REA fluxes might be generally underestimated from less than 5% to about 50% for typically observed lag time errors. The observed effect of high …