Results 41 to 50 of about 1,086,533 (280)

In Silico Analysis of BMAL1 and CLOCK SNPs in the Ensembl Database

open access: yesEuropean Journal of Biology, 2022
Objective: A circadian rhythm in mammals controls the sleep-wake cycle, blood pressure, hormone secretion, metabolism and many other physiological processes. The circadian clock mechanism is regulated by four genes: Bmal1, Clock, Cry, and Per.
Şeref Gül
doaj   +1 more source

Collisional losses, decoherence, and frequency shifts in optical lattice clocks with bosons

open access: yes, 2009
We have quantified collisional losses, decoherence and the collision shift in a one-dimensional optical lattice clock with bosonic 88Sr. The lattice clock is referenced to the highly forbidden transition 1S0 - 3P0 at 698 nm, which becomes weakly allowed ...
Lisdat, Ch.   +4 more
core   +1 more source

Probabilistic Timed Automata with Clock-Dependent Probabilities [PDF]

open access: yes, 2017
Probabilistic timed automata are classical timed automata extended with discrete probability distributions over edges. We introduce clock-dependent probabilistic timed automata, a variant of probabilistic timed automata in which transition probabilities ...
A Abate   +13 more
core   +2 more sources

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar   +8 more
wiley   +1 more source

System clock estimation based on clock wastage minimization [PDF]

open access: yes, 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  

Lego clocks: building a clock from parts [PDF]

open access: yesGenes & Development, 2008
A new finding opens up speculation that the molecular mechanism of circadian clocks in Synechococcus elongatus is composed of multiple oscillator systems (Kitayama and colleagues, this issue, pp. 1513–1521), as has been described in many eukaryotic clock model systems.
Brunner, Michael   +2 more
openaire   +3 more sources

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

Non-obesogenic doses of palmitate disrupt circadian metabolism in adipocytes

open access: yesAdipocyte, 2019
Saturated fatty acids, such as palmitate, lead to circadian disruption. We aimed at studying the effect of low doses of palmitate on circadian metabolism and to decipher the mechanism by which fatty acids convey their effect in adipocytes.
Yael Tal, Nava Chapnik, Oren Froy
doaj   +1 more source

Endoplasmic reticulum–nuclei signaling enzyme-1 knockdown modulates effect of hypoxia and ischemia on the expression of circadian genes in glioma cells

open access: yesБіологічні студії, 2011
The main molecular components of circadian clock system are proteins which play a significant role in the control of both metabolism and malignant tumor growth.
L. L. Karbovskyi   +4 more
doaj   +1 more source

The Clock Takes Shape—24 h Dynamics in Genome Topology

open access: yesFrontiers in Cell and Developmental Biology, 2022
Circadian rhythms orchestrate organismal physiology and behavior in order to anticipate daily changes in the environment. Virtually all cells have an internal rhythm that is synchronized every day by Zeitgebers (environmental cues). The synchrony between
Kévin Tartour, Kiran Padmanabhan
doaj   +1 more source

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