THE INVESTIGATION OF OSCILLATORY PROCESSES BY PERTURBATION EXPERIMENTS I. THE DYNAMICAL INTERPRETATION OF PHASE SHIFTS*

1973 ◽  
pp. 461-477 ◽  
Author(s):  
Arthur T. Winfree
Keyword(s):  
Phase Shifts ◽  
Dynamical Interpretation ◽  
Oscillatory Processes

Mathematical modeling of oscillatory processes with a free boundary

2017 ◽  
Vol 1 (1) ◽  
pp. 102-112
Author(s):  
A.E. Chistyakov ◽  
◽  
E. A. Protsenko ◽  
E.F. Timofeeva ◽  
◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Free Boundary ◽  
Oscillatory Processes

Phase shifter with high phase shifts using defected ground structures

2005 ◽  
Vol 41 (4) ◽  
pp. 196 ◽  
Author(s):  
S.M. Han ◽  
C.-S. Kim ◽  
D. Ahn ◽  
T. Itoh
Keyword(s):  
Phase Shifter ◽  
Phase Shifts ◽  
Defected Ground Structures ◽  
Ground Structures ◽  
High Phase

scholarly journals General Anaesthesia Shifts the Murine Circadian Clock in a Time-Dependant Fashion

2021 ◽  
Vol 3 (1) ◽  
pp. 87-97
Author(s):  
Nicola M. Ludin ◽  
Alma Orts-Sebastian ◽  
James F. Cheeseman ◽  
Janelle Chong ◽  
Alan F. Merry ◽  
...  
Keyword(s):  
Circadian Clock ◽  
General Anaesthesia ◽  
Wheel Running ◽  
Phase Shifts ◽  
Time Dependent ◽  
Suprachiasmatic Nuclei ◽  
Response Curves ◽  
Inhalational Anaesthetic ◽  
Locomotor Rhythms ◽  
Time Dependent Analysis

Following general anaesthesia (GA), patients frequently experience sleep disruption and fatigue, which has been hypothesized to result at least in part by GA affecting the circadian clock. Here, we provide the first comprehensive time-dependent analysis of the effects of the commonly administered inhalational anaesthetic, isoflurane, on the murine circadian clock, by analysing its effects on (a) behavioural locomotor rhythms and (b) PER2::LUC expression in the suprachiasmatic nuclei (SCN) of the mouse brain. Behavioural phase shifts elicited by exposure of mice (n = 80) to six hours of GA (2% isoflurane) were determined by recording wheel-running rhythms in constant conditions (DD). Phase shifts in PER2::LUC expression were determined by recording bioluminescence in organotypic SCN slices (n = 38) prior to and following GA exposure (2% isoflurane). Full phase response curves for the effects of GA on behaviour and PER2::LUC rhythms were constructed, which show that the effects of GA are highly time-dependent. Shifts in SCN PER2 expression were much larger than those of behaviour (c. 0.7 h behaviour vs. 7.5 h PER2::LUC). We discuss the implications of this work for understanding how GA affects the clock, and how it may inform the development of chronotherapeutic strategies to reduce GA-induced phase-shifting in patients.

scholarly journals Limited-Fronthaul Cell-Free Massive MIMO with Local MMSE Receiver under Rician Fading and Phase Shifts

2021 ◽  
pp. 1-1
Author(s):  
Manijeh Bashar ◽  
Pei Xiao ◽  
Rahim Tafazolli ◽  
Kanapathippillai Cumanan ◽  
Alister G. Burr ◽  
...  
Keyword(s):  
Massive Mimo ◽  
Phase Shifts ◽  
Rician Fading ◽  
Mmse Receiver
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