翻訳と辞書 Words near each other ・ Phasis pringlei ・ Phase One (Art Ensemble of Chicago album) ・ Phase One (company) ・ Phase One Endurance ・ Phase One Media Pro ・ Phase One Studios ・ Phase Pardhi ・ Phase perturbation ・ Phase plane ・ Phase plug ・ Phase portrait ・ Phase problem ・ Phase qubit ・ Phase resetting in neurons ・ Phase response ・ Phase response curve ・ Phase retrieval ・ Phase rule ・ Phase shaped binary transmission ・ Phase shift module ・ Phase space ・ Phase Space (album) ・ Phase space (disambiguation) ・ Phase Space (story collection) ・ Phase space formulation ・ Phase space method ・ Phase spider ・ Phase splitter ・ Phase Stretch Transform ・ Phase switch Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Phase response curve ： ウィキペディア英語版 Phase response curve A phase response curve (PRC) illustrates the transient change in the cycle period of an oscillation induced by a perturbation as a function of the phase at which it is received. PRCs are used in various fields; examples of biological oscillations are the heartbeat, circadian rhythms, and the regular, repetitive firing observed in some neurons in the absence of noise. ==PRCs in circadian rhythms== In circadian rhythm research, a PRC illustrates the relationship between a treatment's time of administration and the treatment's effect on a circadian rhythm. Normally, the body's various physiological rhythms will be synchronized within an individual organism (human or animal). The sleep–wake cycle is the most familiar of these rhythms; for humans, a treatment designed to affect circadian rhythms will most often be intended to adjust sleep timing, by either ''delaying'' it to later in the day (night), or ''advancing'' it. Extreme morning people may want to delay their sleep timing; extreme evening chronotypes may wish to advance it. A PRC is a graph showing, by convention, time of the subject's endogenous day along the ''x''-axis and the amount of the phase shift (in hours) along the ''y''-axis. The curve has one peak and one nadir in each 24 hour cycle. Relative circadian time is plotted vs. phase shift magnitude. The two common treatments used to shift the timing of sleep are light therapy, directed at the eyes, and administration of the hormone melatonin, usually taken orally. Either or both can be used daily. Each of these treatments has its own PRC which will vary according to the species being studied; its shape may also vary individually, just slightly. The magnitude is dose-dependent. The discussions below are restricted to the human PRCs for the chronobiotics light and melatonin. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Phase response curve」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.