Results 61 to 70 of about 21,163 (302)

Tidal Forcing on the Sun and the 11-Year Solar-Activity Cycle

Solar Physics, 2023
The hypothesis that tidal forces on the Sun are related to the modulations of the solar-activity cycle has gained increasing attention. The works proposing physical mechanisms of planetary action via tidal forcing have in common that quasi-alignments between Venus, Earth, and Jupiter (V-E-J configurations) would provide a basic periodicity of $\approx ...
Rodolfo G. Cionco, Sergey M. Kudryavtsev, Willie W.-H. Soon   +2 more
openaire   +2 more sources

Synchronization‐Dissipation in the Cardiorespiratory System

Advanced Science, EarlyView.
By modeling central nervous coupling and viscoelastic interactions in the cardiorespiratory system we show that synchronization produces a 10% gain in cardiac efficiency in humans. It is surmised that respiratory sinus arrhythmia improves cardiac pumping efficiency by reducing dynamic stress and power dissipation in the pulmonary vasculature.
Joshua R. Border, Alain Nogaret, Andrew Lefevre, Vishal Jain   +3 more
wiley   +1 more source

Algunas características de las corrientes marinas en el Golfo de Nicoya, Costa Rica

Revista de Biología Tropical, 2004
Se estudia la estructura espacial y vertical de las corrientes en el Golfo de Nicoya y su relación con los ciclos de marea usando correntímetros. Se encuentra que en el interior del golfo, la variación vertical de las corrientes marinas aumenta conforme ...
Omar G Lizano, Eric J Alfaro
doaj  

Facies and the Architecture of Estuarine Tidal Bar in the Lower Cretaceous Mcmurray Formation, Central Athabasca Oil Sands, Alberta, Canada

Energies, 2019
In this study, data obtained from the Lower Cretaceous McMurray Formation in the central Athabasca Oil Sands, northeastern Alberta, Canada, are examined and used to establish the architecture of stacked fluvial and estuarine tidal bar deposits.
Mingming Tang, Kexin Zhang, Jixin Huang, Shuangfang Lu   +3 more
doaj   +1 more source

Automatic Cycle Identification in Tidal reathing Signals [PDF]

Journal of Bioengineering & Biomedical Science, 2012
In this paper, we introduce a novel cycle identification algorithm using MATLAB programming to automatically identify cycles in tidal breathing signals. The algorithm was designed in four steps using filtering, derivation, and other signal processing techniques.
openaire   +1 more source

A Synthetic Spring‐Neap Tidal Cycle for Long‐Term Morphodynamic Models

Journal of Geophysical Research: Earth Surface, 2022
Abstract Existing tidal input reduction approaches applied in accelerated morphodynamic simulations aim to capture the dominant tidal forces in a single or double representative tidal cycle, often referred to as a “morphological tide.” These strongly simplified tidal signals fail to represent the tidal extremes and hence poorly allow ...
Reinier Schrijvershof, D.S. (Bas) van Maren, Paul J.J.F. Torfs, A.J.F. (Ton) Hoitink   +3 more
openaire   +3 more sources

A Piezo‐Mimetic Ionic Hydrogel Harnessing Joint Motion for Cartilage Repair

Advanced Science, EarlyView.
A piezo‐mimetic ionic hydrogel converts mechanical deformation into bioactive ionic currents via stress‐induced asymmetric ion migration. Coupled with sustained Mg2+ release, this mechano‐electrochemical platform bridges mechanical loading and cellular signaling, enabling load‐adaptive stimulation and enhanced cartilage regeneration. ABSTRACT Articular
Chenyuan Gao, Xinyu Wang, Zhifeng Wu, Xinya Zhang, Xiao Geng, Ti Zhang, Yue Wang, Hongwei Xia, Jun Zhang, Xianbo Qiu, Cuiru Sun, Yingjie Yu, Wenli Dai, Hua Tian, Qing Cai   +14 more
wiley   +1 more source

Formation of tidal sand waves: Effects of the spring‐neap cycle [PDF]

Journal of Geophysical Research: Oceans, 2010
The effects that the spring‐neap cycle has on the formation of tidal sand waves are investigated by performing a linear stability analysis of the flat bottom configuration of a shallow sea subject to a modulated tidal current. The slow temporal changes of the tidal range tend to accelerate the process which leads to the appearance of tidal sand waves ...
BLONDEAUX, PAOLO, VITTORI, GIOVANNA
openaire   +2 more sources

Natural seabed gas leakage - variability imposed by tidal cycles

, 2020
The likelihood of leakage from sub-seabed Carbon Capture and Storage (CCS) sites has been debated since geological storage was proposed as an effective option to remove greenhouse gas emissions from the climate system.
Davis, John, Li, Jianghui, Leighton, Timothy, Cotterle, Diego, Roche, Ben, Bull, Jonathan, Deponte, Michele, Gordini, Emiliano, White, Paul   +8 more
core  

Targeting PLD3 Reverses the Immunosuppressive Niche by Reprogramming Tumor‐Associated Macrophages and Potentiates Antitumor Immunity

Advanced Science, EarlyView.
PLD3 activates the lysosomal‐AKT‐NF‐κB axis to drive cellular senescence in macrophages, establishing an immunosuppressive TME by limiting the infiltration of cytotoxic T, NK, and NKT cells, which confers resistance to anti‐PD‐1 therapy. Abrine inhibits PLD3 expression, restoring antitumor immunity and synergizing with anti‐PD‐1 treatment.
Xingtu Qin, Qiong Li, Xuemei Xu, Yuhan Wu, Yin Zhu, Jieqiong Wu, Yuan Fang, Qiubei Chen, Shuyang Wang, Jiang Yu, Yaping Ye, Hongli Jiao   +11 more
wiley   +1 more source