Sara Abdallah

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Fish possess chemoreceptors able to sense increasing levels of ambient CO(2) and initiate various cardiorespiratory reflexes including hyperventilation and bradycardia. These chemoreceptors are localized predominantly to the gills, are oriented to sense the external environment and typically are stimulated by changes in environmental molecular CO(2) rather(More)
Neuroepithelial cells (NECs) of the fish gill are respiratory chemoreceptors that detect changes in O2 and CO2/H+ and are homologous to type I cells of the mammalian carotid body. In zebrafish (Danio rerio), stimulation of NECs by hypoxia or hypercapnia initiates inhibition of K+ channels and subsequent membrane depolarisation. The goal of the present study(More)
This randomized, double-blind, crossover study examined the effects of a clothing ensemble made of a synthetic fabric promoted as having superior cooling properties (COOL) on exercise performance and its physiological and perceptual determinants during cycle exercise in ambient laboratory conditions that mimic environmental conditions of indoor(More)
Adult zebrafish, Danio rerio, exhibit hyperventilatory responses to absolute environmental CO2 levels as low as 1.0 mmHg. The ability of zebrafish to detect and respond to low ambient CO2 appears to be mediated by chemosensory neuroepithelial cells (NECs) of the gill filaments. Recent electrophysiological characterization of this response revealed that the(More)
EXECUTIVE SUMMARY Today, organizational environments are increasingly characterized by an expanding use of advanced technologies. A company's management accounting system should capture the underlying technology, be consistent with corporate commitment to total quality and increased automation, and promote its efforts to compete on the basis of cost,(More)
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