Results 51 to 60 of about 2,431,411 (373)
FEBS Letters, EarlyView.This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley +1 more source
Logarithmic circuit with wide dynamic range [PDF]
, 1978 A circuit deriving an output voltage that is proportional to the logarithm of a dc input voltage susceptible to wide variations in amplitude includes a constant current source which forward biases a diode so that the diode operates in the exponential ...
Manus, E. A., Wiley, P. H.
core +1 more source
Inductive power transfer system with constant current and constant voltage outputs for battery charging based on double‐channel T‐circuit [PDF]
, 2021 Yong Wu +4 more
openalex +1 more source
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
An optically coupled power stimulus isolation unit with high voltage and fast rise time output
Brazilian Journal of Medical and Biological Research, 1999 Recent technological developments have created new devices that could improve and simplify the construction of stimulus isolators. HEXFET transistors can switch large currents and hundreds of volts in nanoseconds.
R.O. Brasil, J.H. Leal-Cardoso
doaj +1 more source
Energy Reports, 2021 This paper presents an input–output linearization (IOL) control strategy to achieve PFC (power factor correction) and output voltage constant in a boost converter.
Gang Li +3 more
doaj +1 more source
Transformer regulated self-stabilizing chopper [PDF]
, 1969 A self-stabilizing voltage regulator is described. Direct current voltage regulation employing a series transistor rendered conductive during various portions of a cycle is controlled by saturation of an autotransformer. The constant volt-second capacity
Raposa, F. L.
core +1 more source
The role of histone modifications in transcription regulation upon DNA damage
FEBS Letters, EarlyView.This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley +1 more source
High‐efficiency multi‐string LED driver based on constant current bus with time‐multiplexing control
Electronics Letters, 2016 A high‐efficiency multi‐string LED driver based on constant current bus with time‐multiplexing control scheme is proposed and analysed. Each LED string is connected to the constant current bus, which is provided by the output of a front‐end high ...
Xueshan Liu +3 more
doaj +1 more source
Input-parallel–output-series control strategy for three-level medium-voltage DC grid-type converter
The Journal of Engineering, 2019 A control topology input-parallel–output-series converter system is investigated, which is suitable for high-voltage and high-output power applications.
Faisal Mehmood Shah +6 more
doaj +1 more source