Results 61 to 70 of about 4,772,800 (256)

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

Electrocardiographic Comparison Between Artificial Cardiac Stimulation of Apex, Septum and Right Ventricular Outflow Tract

open access: yesJournal of Cardiac Arrhythmias, 2020
Background: Ventricular pacing is detrimental to cardiac function, with more deleterious effects when it is apical, widening the QRS complex, so the best cardiac pacing site is still being sought.
Roberto Carlos Alvarez Coello   +1 more
doaj   +4 more sources

Analysis and application of minimum variance discrete time system identification [PDF]

open access: yes
An on-line minimum variance parameter identifier is developed which embodies both accuracy and computational efficiency. The formulation results in a linear estimation problem with both additive and multiplicative noise.
Kaufman, H., Kotob, S.
core   +4 more sources

Key courses of academic curriculum uncovered by data mining of students' grades

open access: yes, 2016
Learning is a complex cognitive process that depends not only on an individual capability of knowledge absorption but it can be also influenced by various group interactions and by the structure of an academic curriculum.
Chołoniewski, Jan   +2 more
core   +1 more source

Effectiveness of Training in Different Natural Environments on Some Biomechanical Variables of Sprint Runners in (100m, 200m, 400m) Events

open access: yesIndonesian Journal of Physical Education and Sport Science
Study purpose. Sprint events (100m, 200m, 400m) are high-performance athletic activities that rely on coordinated movement transfer governed by specific mechanical principles.
Eman Sabeeh Hussein Al-Saadi   +1 more
doaj   +1 more source

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

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

Sensitivity Analysis of Steel Box-Section Girders. [PDF]

open access: yes, 2013
The paper deals with the load–carrying capacity stochastic variance based sensitivity analysis of thin–walled box–section girder subjected to pure bending. The lower– and uppe-r-bound load–capacity estimation is performed. The methodology is based on the
Kotełko, Maria, Lis, Paweł
core  

Prices and Asymptotics for Discrete Variance Swaps

open access: yes, 2013
We study the fair strike of a discrete variance swap for a general time-homogeneous stochastic volatility model. In the special cases of Heston, Hull-White and Schobel-Zhu stochastic volatility models we give simple explicit expressions (improving ...
Bernard, Carole, Cui, Zhenyu
core   +1 more source

Nonlinear models in the comparison of nitrogen fertilizers applied to coffee [PDF]

open access: yesScientia Agricola
Nitrogen (N) is essential to the fertilization of coffee. The fertilizer most used to meet this demand is urea, although it has high rates of N loss due mainly to ammonia volatilization.
Rafaela de Carvalho Salvador   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy