Results 81 to 90 of about 4,194,806 (302)

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Seismic Response Analysis of Double-Layer Isolation Structures in High-Rise Buildings

open access: yesBuildings
(1) Research background: The aim of this study was to investigate the response patterns of double-layer isolation structures under seismic actions. (2) Methods: A numerical model of an 18-story reinforced concrete frame, with a core tube double-layer ...
Guangxing Zhao   +3 more
doaj   +1 more source

Survey of impact damper performance [PDF]

open access: yes
An overall picture of the impact damper is obtained by using time-history solutions of the system motion for the oscillator in free decay. The impactor behavior depends very strongly on oscillator amplitude, and free decay can sample the full range of ...
Brown, Gerald V.
core   +1 more source

Design Spectrum Analysis in NASTRAN [PDF]

open access: yes, 1984
The utility of Design Spectrum Analysis is to give a mode by mode characterization of the behavior of a design under a given loading. The theory of design spectrum is discussed after operations are explained.
Butler, T. G.
core   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

open access: yesFEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang   +8 more
wiley   +1 more source

Stochastic finite element analysis of time-history response of vibration system with uncertain damping.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1985
不確定な減衰による時刻歴応答の確率的変動を二次摂動法に基づく確率有限要素法により解析する手法を定式化した.比例形,非比例形減衰に関する運動方程式のモード分解法を示し,後者の場合の直接時間積分は1階非せい次常微分方程式の積分に帰し,摂動解が効率よく演算され得ることを示した.確率変数のモーメントを想定して,塔状構造物の変位と応力時刻歴応答の期待値と分散を数値計算により評価した.
Shigeru NAKAGIRI   +2 more
openaire   +2 more sources

Three methods for the description of the temporal response to a SH plane impulsive seismic wave in a soft elastic layer overlying a hard elastic substratum [PDF]

open access: yes, 2006
We treat the case of a flat stress-free surface (i.e., the ground in seismological applications) separating air from a homogeneous, isotropic, solid substratum overlain by a homogeneous, isotropic, solid layer (in contact with the ground) solicited by a ...
Wirgin, Armand
core   +2 more sources

Paleoceanography of the eastern equatorial Pacific during the Neogene: Synthesis of Leg 138 drilling results [PDF]

open access: yes, 1995
The primary objective of Leg 138 was to provide detailed information about the ocean\u27s response to global climate change during the Neogene. Two north-south transects were drilled (95° and 110°W) within the region of equatorial divergence-driven ...
Mayer, Larry A.   +2 more
core   +2 more sources

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

Torsional Response Induced by Lateral Displacement and Inertial Force

open access: yesFrontiers in Built Environment, 2018
Eccentric distribution of stiffness, damping, and mass of a structure, and spatially non-uniform ground motion input to a long or large base mat of a structure are well-known causes of torsional response.
Masayuki Kohiyama, Hiroki Yokoyama
doaj   +1 more source

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