Results 41 to 50 of about 3,903,556 (353)

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS 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

Axial load-displacement response and ductility of sustainable steel-reinforced compression-cast recycled aggregate concrete columns

open access: yesCase Studies in Construction Materials
The newly developed compression casting technology effectively addresses the inherent deficiencies of recycled aggregate concrete (RAC), such as low strength and poor durability, by removing excess water and air through compression.
Fang Yuan   +3 more
doaj   +1 more source

Strain induced dynamic recrystallization nucleation of ZA21 magnesium alloy during compression process at low and medium temperatures

open access: yesJournal of Materials Research and Technology, 2020
Dynamic recrystallization (DRX) behavior of ZA21 magnesium alloy during compression process was investigated through uniaxial compression tests at 110 °C and 210 °C with an initial strain rate of 0.01 s−1.
Yanxia Niu   +4 more
doaj   +1 more source

Compressive strength of delaminated aerospace composites [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012
An efficient analytical model is described which predicts the value of compressive strain below which buckle-driven propagation of delaminations in aerospace composites will not occur. An extension of this efficient strip model which accounts for propagation transverse to the direction of applied compression is derived.
Butler, Richard   +3 more
openaire   +3 more sources

Apparatus for measuring strength in biaxial compression

open access: yesReview of Scientific Instruments, 2022
Most measurements of compressive strength of ductile materials have involved Hopkinson–Kolsky bars or Taylor anvils placing samples in uniaxial compression. In these geometries, strain is limited by the tendency of the sample to petal, in analogy to necking in uniaxial tension.
J. L. Belof, J. I. Katz
openaire   +3 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS 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

Scaling effects in notched composites [PDF]

open access: yes, 2010
A program of scaled tests on unnotched and open-hole tension and compression specimens is summarized. Quasi-isotropic IM7/8552 carbon-fiber epoxy specimens have been tested using two different scaling techniques: sub-laminate-level ([45/90/ - 45/0]ns ...
Hallett, S. R.   +2 more
core   +1 more source

Experimental evaluation of the residual compression strength and ultimate strain of chloride corrosion‐induced damaged concrete

open access: yesStructural Concrete, 2018
In this paper, the effects of chloride corrosion of steel reinforcement on the axial compressive strength and the ultimate strain of concrete materials in reinforced concrete columns have been investigated experimentally.
K. Andisheh, A. Scott, A. Palermo
semanticscholar   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Experimental study on partial compression parallel to grain of solid timber

open access: yesJournal of Wood Science, 2021
This paper describes results and analysis of experimental testing of entire and partial compression strength and stiffness parallel to the grain of solid timber (Japanese cedar).
Marina Totsuka   +3 more
doaj   +1 more source

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