Internal noise stochastic resonance in a circadian clock system

2003 ◽  
Vol 119 (22) ◽  
pp. 11508-11512 ◽  
Author(s):  
Zhonghuai Hou ◽  
Houwen Xin
Keyword(s):  
Circadian Clock ◽  
Stochastic Resonance ◽  
Internal Noise ◽  
Clock System

scholarly journals Role of KaiC phosphorylation in the circadian clock system of Synechococcus elongatus PCC 7942

2004 ◽  
Vol 101 (38) ◽  
pp. 13927-13932 ◽  
Author(s):  
T. Nishiwaki ◽  
Y. Satomi ◽  
M. Nakajima ◽  
C. Lee ◽  
R. Kiyohara ◽  
...  
Keyword(s):  
Circadian Clock ◽  
Synechococcus Elongatus ◽  
Clock System ◽  
Synechococcus Elongatus Pcc 7942 ◽  
Pcc 7942

Evolution Analysis of the Circadian Clock Protein KaiB

2013 ◽  
Vol 647 ◽  
pp. 391-395
Author(s):  
Liu Sen ◽  
Song Liu
Keyword(s):  
Circadian Rhythms ◽  
Circadian Clock ◽  
Feedback Loop ◽  
Circadian System ◽  
Circadian Rhythmicity ◽  
Physiological Functions ◽  
Clock System ◽  
Evolution Analysis ◽  
Clock Protein

Regulation of daily physiological functions with approximate a 24-hour periodicity, or circadian rhythms, is a characteristic of eukaryotes. So far, cyanobacteria are only known prokaryotes reported to possess circadian rhythmicity. The circadian system in cyanobacteria comprises both a post-translational oscillator (PTO) and a transcriptional/translational feedback loop (TTFL). The PTO can be reconstituted in vitro with three purified proteins (KaiA, KaiB, and KaiC) with the existence of ATP. Phase of the nanoclockwork has been associated with the phosphorylation states of KaiC, with KaiA promoting the phosphorylation of KaiC, and KaiB de-phosphorylating KaiC. Here we studied the evolution of the KaiB protein. The result will be helpful in understanding the evolution of the circadian clock system.

Association study in a Sardinian sample between bipolar disorder and the nuclear receptorREV-ERBαgene, a critical component of the circadian clock system

2009 ◽  
Vol 11 (2) ◽  
pp. 215-220 ◽  
Author(s):  
Giovanni Severino ◽  
Mirko Manchia ◽  
Paolo Contu ◽  
Alessio Squassina ◽  
Simona Lampus ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Circadian Clock ◽  
Association Study ◽  
Critical Component ◽  
Clock System

Internal noise stochastic resonance of synthetic gene network

2005 ◽  
Vol 401 (1-3) ◽  
pp. 307-311 ◽  
Author(s):  
Zhiwei Wang ◽  
Zhonghuai Hou ◽  
Houwen Xin
Keyword(s):  
Stochastic Resonance ◽  
Gene Network ◽  
Internal Noise ◽  
Synthetic Gene ◽  
Synthetic Gene Network

WATERMARK DETECTION USING DYNAMIC STOCHASTIC RESONANCE

2013 ◽  
Vol 12 (03) ◽  
pp. 1350010 ◽  
Author(s):  
RAJIB KUMAR JHA ◽  
APOORV CHATURVEDI ◽  
RAJLAXMI CHOUHAN
Keyword(s):  
Stochastic Resonance ◽  
Spread Spectrum ◽  
Internal Noise ◽  
External Noise ◽  
Detection Technique ◽  
Discrete Wavelet ◽  
Detection Techniques ◽  
Dynamic Stochastic Resonance ◽  
Watermark Embedding ◽  
Dynamic Stochastic

In this paper, a dynamic stochastic resonance (DSR) based watermark detection technique in discrete wavelet transform (DWT) domain is presented. Pseudo random bit sequence having certain seed value is considered as a watermark. Watermark embedding is done by embedding random bits in spread-spectrum fashion to the significant DWT coefficients. Watermark detection is quantitatively characterized by the value of correlation. The performance of watermark detection is improved by DSR which is an iterative process that utilizes the internal noise present in the image or external noise which is added during attacks. Even under various noise attacks, geometrical distortions, image enhancement and compression attacks, the DSR-based random bits detection is observed to give noteworthy improvement over existing watermark detection techniques. DSR-based technique is also found to give better detection performance when compared with the suprathreshold stochastic resonance-based detection technique.

Hypothesis: Role for the circadian Clock system and sleep in the pathogenesis of adhesions and chronic pelvic pain?

2011 ◽  
Vol 76 (3) ◽  
pp. 453-456 ◽  
Author(s):  
Khaled Sadek ◽  
Nick Macklon ◽  
Kim Bruce ◽  
Felino Cagampang ◽  
Ying Cheong
Keyword(s):  
Circadian Clock ◽  
Pelvic Pain ◽  
Chronic Pelvic Pain ◽  
Clock System
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