Results 41 to 50 of about 363,591 (305)
System clock estimation based on clock wastage minimization [PDF]
, 1991 When synthesizing a hardware implementation from behavioral descriptions, an important decision is the selection of a clock cycle to schedule the datapath operations into control steps.
Gajski, Daniel D., Narayan, Sanjiv
core
Minimizing the Dick Effect in an Optical Lattice Clock
, 2009 We discuss the minimization of the Dick effect in an optical lattice clock. We show that optimizing the time sequence of operation of the clock can lead to a significant reduction of the clock stability degradation by the frequency noise of the ...
J. Lodewyck +8 more
core +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele +19 more
wiley +1 more source
Cellular and Molecular Life SciencesCircadian rhythms, conserved across life, are governed by molecular feedback loops in Drosophila clock neurons, though how these loops adapt in peripheral tissue clocks remains unclear.
Yishi Wang +4 more
doaj +1 more source
Circadian clock genes contribute to the regulation of hair follicle cycling.
PLoS Genetics, 2009 Hair follicles undergo recurrent cycling of controlled growth (anagen), regression (catagen), and relative quiescence (telogen) with a defined periodicity.
Kevin K Lin +9 more
doaj +1 more source
The role of clockwork orange in the circadian clock of the cricket Gryllus bimaculatus
Zoological Letters, 2020 The circadian clock generates rhythms of approximately 24 h through periodic expression of the clock genes. In insects, the major clock genes period (per) and timeless (tim) are rhythmically expressed upon their transactivation by CLOCK/CYCLE, with peak ...
Yasuaki Tomiyama +5 more
doaj +1 more source
Open loop digital frequency multiplier [PDF]
, 1977 An open loop digital frequency multiplier is described which has a multiplied output synchronized to low frequency clock pulse. The system includes a multistage digital counter which provides a pulse output as a function of an integer divisor.
Moore, R. C.
core +1 more source
Cellular Clocks: Coupled Circadian and Cell Division Cycles [PDF]
Current Biology, 2004 Gating of cell division by the circadian clock is well known, yet its mechanism is little understood. Genetically tractable model systems have led to new hypotheses and questions concerning the coupling of these two cellular cycles.
Merrow, Martha, Roenneberg, Till
openaire +2 more sources
Deciphering Solar Magnetic Activity: The Solar Cycle Clock
Frontiers in Astronomy and Space Sciences, 2022 The Sun’s variability is controlled by the progression and interaction of the magnetized systems that form the 22-year magnetic activity cycle (the “Hale Cycle”) as they march from their origin at ∼55° latitude to the equator, over ∼19 years. We will discuss the end point of that progression, dubbed “terminator” events, and our means of diagnosing them.
Robert J. Leamon +3 more
openaire +3 more sources
Treatment Decision‐Making Roles and Preferences Among Adolescents and Young Adults With Cancer
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Decision‐making (DM) dynamics between adolescents and young adults (AYAs) with cancer, parents, and oncologists remain underexplored in diverse populations. We examined cancer treatment DM preferences among an ethnically and socioeconomically diverse group of AYAs and their parents.
Amanda M. Gutierrez +14 more
wiley +1 more source