Single-clock-cycle two-dimensional median filter [PDF]
International Journal of Circuit Theory and Applications, 1996 Median filters are of interest to image processing due to their ability to remove impulsive noise. Conventional digital implementations of the median function, however, require multiple clock cycles, a number that is proportional to the size of the 2-D ...
Pedroni, V. A., Yariv, A.
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Photoperiodic diapause under the control of circadian clock genes in an insect [PDF]
BMC Biology, 2010 Background Most organisms have evolved a circadian clock in order to anticipate daily environmental changes and many of these organisms are also capable of sophisticated measurement of daylength (photoperiodism) that is used to regulate seasonal events ...
Ikeno Tomoko +3 more
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DLL Design with Wide Input Duty Cycle Range and Low Output Clock Duty Cycle Error [PDF]
MicromachinesThis paper presents the design of a Delay-Locked Loop (DLL) with a simple architecture and a wide input clock duty cycle range. The design is tailored to meet the increasing data rate and stringent clock requirements of modern semiconductor chips, with ...
Binyu Qin +4 more
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Coupling between the circadian clock and cell cycle oscillators: implication for healthy cells and malignant growth [PDF]
Frontiers in Neurology, 2015 Uncontrolled cell proliferation is one of the key features leading to cancer. Seminal works in chronobiology have revealed that disruption of the circadian timing system in mice, either by surgical, genetic or environmental manipulation, increased tumor ...
Celine eFeillet +4 more
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The Drosophila circadian clock gene cycle controls the development of clock neurons.
PLoS GeneticsDaily behavioral and physiological rhythms are controlled by the brain's circadian timekeeping system, a synchronized network of neurons that maintains endogenous molecular oscillations.
Grace Biondi +2 more
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Comparison of expression patterns of six canonical clock genes of follicular phase and luteal phase in Small-tailed Han sheep [PDF]
Archives Animal Breeding, 2021 The circadian rhythm is a biological rhythm that is closely related to the rhythmic expression of a series of clock genes. Results from several studies have indicated that clock genes are associated with the estrous cycle in female animals.
Q. Han, X. He, R. Di, M. Chu
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Circadian clock: a regulator of the immunity in cancer
Cell Communication and Signaling, 2021 The circadian clock is an endogenous timekeeper system that controls and optimizes biological processes, which are consistent with a master circadian clock and peripheral clocks and are controlled by various genes.
Zhen Zhang +5 more
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Entrainment of the mammalian cell cycle by the circadian clock: modeling two coupled cellular rhythms. [PDF]
PLoS Computational Biology, 2012 The cell division cycle and the circadian clock represent two major cellular rhythms. These two periodic processes are coupled in multiple ways, given that several molecular components of the cell cycle network are controlled in a circadian manner.
Claude Gérard, Albert Goldbeter
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Control of synchronization ratios in clock/cell cycle coupling by growth factors and glucocorticoids [PDF]
Royal Society Open Science, 2020 The cell cycle and the circadian clock are essential cyclic cellular processes often synchronous in healthy cells. In this work, we use previously developed mathematical models of the mammalian cell cycle and circadian cellular clock in order to ...
S. Almeida, M. Chaves, F. Delaunay
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A small‐area and low‐power all‐digital duty cycle corrector with de‐skew circuit
Electronics Letters, 2023 This paper proposes a small‐area and low‐power all‐digital duty cycle corrector with de‐skew circuit. By adopting the proposed delay unit containing a pre‐charge transistor, half cycle delay line can accurately generate half‐cycle delay, thus ensuring ...
Ya Hai +3 more
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