Results 51 to 60 of about 900,219 (313)

Dynamic behaviour of rotating functionally graded Timoshenko beam via B-spline collocation method

Applied and Computational Mechanics
The dynamic behaviour of a rotating Timoshenko functionally graded (FG) beam is investigated, with material properties varying along the height of the beam according to a power-law distribution. The study investigates how key parameters such as the power-
Chichkhede S., Mahapatra D., Sanyal S., Bhowmick S.   +3 more
doaj   +1 more source

The Power Index of a Graph

Graphs and Combinatorics, 2017
The {\em power index} $ ( )$ of a graph $ $ is the least order of a group $G$ such that $ $ can embed into the power graph of $G$. Furthermore, this group $G$ is {\em $ $-optimal} if $G$ has order $ ( )$. We say that $ $ is {\em power-critical} if its order equals to $ ( )$. This paper focuses on the power indices of complete graphs, complete
Ma, Xuanlong, Feng, Min, Wang, Kaishun
openaire   +3 more sources

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

FEBS 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, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

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

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

Relationship between lower limb muscle strength and single-leg sit-to-stand performance in young adults

Journal of Associated Medical Sciences, 2014
Objective: The purpose of this study was to determine the appropriate protocol of the single-leg sit-to-stand (STS) test in terms of number of repetitions for assessment of the lower limb muscle strength in young adults by exploring relationship between ...
Weerasak Tapanya, Samatchai Chamnongkich
doaj  

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

Changes in national power in the Global South: examining the World Power Index (1992-2022)

Revista CIDOB d'Afers Internacionals
This paper examines the evolution of national power in the Global South between 1992 and 2022, using the World Power Index (WPI) as a quantitative and longitudinal measuring tool.
Daniel Morales Ruvalcaba
doaj   +1 more source

Research of comprehensive quantitative evaluation of power quality of coal mine

Gong-kuang zidonghua, 2015
The current harmonic distortion reflecting the maximum load current was defined, and a distortion power factor considering non-sinusoidal current waveform was built according to special requirements of coal mine electrical load.
WANG Qingliang, YAO Miao
doaj   +1 more source

A novel distance‐based system reactive power index for system‐level reactive power reserve assessment

IET Smart Grid, 2023
Voltage stability of the power system is of major concern with ever‐increasing stress in the transmission network. The availability of ample reactive power reserve is essential to ensure voltage stability of the power system. Voltage stability and status
Syed Muhammad Hur Rizvi
doaj   +1 more source

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

FEBS 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, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source