Results 111 to 120 of about 1,314,904 (274)

The choroid plexus is an important circadian clock component

open access: yesNature Communications, 2018
Mammalian circadian clocks have a hierarchical organization, governed by the suprachiasmatic nucleus (SCN) in the hypothalamus. The brain itself contains multiple loci that maintain autonomous circadian rhythmicity, but the contribution of the non-SCN ...
J. Myung   +10 more
semanticscholar   +1 more source

Performance Analysis of Time Synchronization Protocols in Wireless Sensor Networks

open access: yesSensors, 2019
The time synchronization protocol is indispensable in various applications of wireless sensor networks, such as scheduling, monitoring, and tracking. Numerous protocols and algorithms have been proposed in recent decades, and many of them provide micro ...
Linh-An Phan   +4 more
doaj   +1 more source

Cnidarians are CLOCKing in

open access: yeseLife
Studies of the starlet sea anemone provide important insights into the early evolution of the circadian clock in animals.
Erica R Kwiatkowski, Patrick Emery
openaire   +3 more sources

Clock mutants of Drosophila melanogaster.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1971
Three mutants have been isolated in which the normal 24-hour rhythm is drastically changed. One mutant is arrhythmic; another has a period of 19 hr; a third has a period of 28 hr.
R. Konopka, S. Benzer
semanticscholar   +1 more source

Time as a Measure: Elementary Students Positioning the Hands of an Analog Clock

open access: yesJournal of Numerical Cognition, 2018
Elementary students have difficulty with the topic of time. The present study investigated students’ actions to position hour and minute hands on an analog clock to indicate particular times of the day. Using one-on-one interviews with students in Grades
Darrell Earnest   +2 more
doaj   +1 more source

Disruption of the Clock Components CLOCK and BMAL1 Leads to Hypoinsulinemia and Diabetes

open access: yesNature, 2010
The molecular clock maintains energy constancy by producing circadian oscillations of rate-limiting enzymes involved in tissue metabolism across the day and night.
B. Marcheva   +17 more
semanticscholar   +1 more source

Time in the theory of relativity: on natural clocks, proper time, the clock hypothesis, and all that [PDF]

open access: yes, 2017
When addressing the notion of proper time in the theory of relativity, it is usually taken for granted that the time read by an accelerated clock is given by the Minkowski proper time.
Valente, Mario Bacelar
core  

Receptive Openness to a Message and Its Dative—Materialist Origin of Time

open access: yesInformation, 2011
Information precipitates the flow of time from scratch. Information as a noun, equivalent of the transitive verb “inform”, stands out in the contrast between a direct and an indirect object of the verb, that is to say, between the messenger of a message ...
Koichiro Matsuno
doaj   +1 more source

Modeling of thermally induced skew variations in clock distribution network [PDF]

open access: yes, 2011
Clock distribution network is sensitive to large thermal gradients on the die as the performance of both clock buffers and interconnects are affected by temperature.
Calimera, Andrea   +5 more
core  

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