Results 101 to 110 of about 1,354,268 (327)

Electronic system for drift clock calculation and synchronization for seafloor observatory [PDF]

open access: yes, 2016
The paper describes a new electronic device that allows an easily measurement of the drift between a reference time source (usually GPS) and an atomic rubidium clock which is normally used in seafloor observatories.
Apponi, Umberto   +3 more
core  

Metrological characterization of the pulsed Rb clock with optical detection

open access: yes, 2011
We report on the implementation and the metrological characterization of a vapor-cell Rb frequency standard working in pulsed regime. The three main parts that compose the clock, physics package, optics and electronics, are described in detail in the ...
A Godone   +10 more
core   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Resveratrol Induces Myotube Development by Altering Circadian Metabolism via the SIRT1-AMPK-PP2A Axis

open access: yesCells
Resveratrol is a polyphenol known to have metabolic as well as circadian effects. However, there is little information regarding the metabolic and circadian effect of resveratrol on muscle cells.
Natalie Avital-Cohen   +2 more
doaj   +1 more source

Investigations of laser pumped gas cell atomic frequency standard [PDF]

open access: yes, 1982
The performance characteristics of a rubidium gas cell atomic frequency standard might be improved by replacing the standard rubidium discharge lamp with a single mode laser diode. Aspects of the laser pumped gas cell atomic clock studied include effects
Camparo, J. C.   +2 more
core   +1 more source

Why emerging leaders should focus on being good postdoctoral supervisors

open access: yesFEBS Letters, EarlyView.
Swamped with work and suddenly a new student is waiting at your doorstep for supervision? Great—this is your chance! In this article, we share tips on how postdocs can strengthen their leadership skills while supervising students. This image has been created using DALL·E. Many postdocs work as leaders later in their career.
Hannah Rostalski   +5 more
wiley   +1 more source

DIAGNÓSTICO DA IMPLANTAÇÃO E IMPLEMENTAÇÃO DA NORMA REGULAMENTADORA 32 NOS ESTABELECIMENTOS DE SAÚDE: UM ESTUDO DE CASO EM UM HOSPITAL PÚBLICO DE JOINVILLE, SC - BRASIL

open access: yesAção Ergonômica, 2016
No Brasil não havia uma legislação federal específica que contemplasse os problemas encontrados nos ambientes laborais existentes no setor saúde. Com o intuito de promover a saúde dos trabalhadores na área da saúde foi aprovada a Norma Regulamentadora 32
Dayane Clock, Eduardo Concepción Batiz
doaj  

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

Inexpensive programmable computer clock [PDF]

open access: yes, 1973
Clock's computer interface accepts pulses from computer (computer commands) and translates them into control signals for clock, and vice versa. Clock is preset by computer to a fixed number of time pulses, and then started.
Vrancik, J. E.
core   +1 more source

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

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