نتایج جستجو برای: clock
تعداد نتایج: 47430 فیلتر نتایج به سال:
In mammals, the circadian system is hierarchical — a brain pacemaker located within the suprachiasmatic nucleus (SCN) is responsible for regulating locomotor activity rhythms and for synchronizing peripheral oscillators [1,2]. Recent genetic evidence in mice indicates that the bHLH transcription factors CLOCK and NPAS2 have partially redundant functions within the SCN [3,4]. To further examine ...
Circadian rhythms of behavior, physiology, and gene expression are present in diverse tissues and organisms. The function of the transcriptional activator, Clock, is necessary in both Drosophila and mammals for the expression of many core clock components. We demonstrate in Drosophila that Clock misexpression in nai;ve brain regions induces circadian gene expression. This includes major compone...
Clock management circuits are relatively new FPGA architectural blocks that are critical to solving clock distribution problems associated with high-speed, high-density designs. We outline the use of three FPGA clock managers in a variety of applications, and consider their application to low-power systems which adjust clock rates based on the amount of computation needed. Dynamic clock managem...
Circadian timing is generated through a unique series of autoregulatory interactions termed the molecular clock. Behavioral rhythms subject to the molecular clock are well characterized. We demonstrate a role for Bmal1 and Clock in the regulation of glucose homeostasis. Inactivation of the known clock components Bmal1 (Mop3) and Clock suppress the diurnal variation in glucose and triglycerides....
Animal circadian clocks consist of central and peripheral pacemakers, which are coordinated to produce daily rhythms in physiology and behaviour. Despite its importance for optimal performance and health, the mechanism of clock coordination is poorly understood. Here we dissect the pathway through which the circadian clock of Drosophila imposes daily rhythmicity to the pattern of adult emergenc...
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