The Thermometer and the Calorimeter, or the Best Choice for Data Acquisition in the Sampling of Biological Rhythms |
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Authors: | Jacques Beau |
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Affiliation: | Laboratoire de Génétique Neurogénétique et Comportements, URA 1294 du CNRS, UFR Biomédicale des Saints-Pères, Paris, France. |
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Abstract: | The comparison between measurements effected by different apparati shows that a given class of instruments provides an integral set of measurements. This characteristic has a certain disadvantage: the modification of the spectral bandwidth is limited to an attenuation of 3 dB. However, it also has certain advantages. The integral measurement (or the counting measurement) makes it possible to satisfy Shannon's sampling criteria by avoiding the necessary anti-aliasing filtering which is commonly impossible to realize on measurements of a biological nature. A second advantage is linked to the reduction of the background noise on the band. |
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Keywords: | Chronobiology data processing sampling data acquisition filtering circadian rhythm |
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