Results 91 to 100 of about 637,657 (352)

The roles and applications of extracellular vesicles in cancer

Molecular Oncology, EarlyView.
Extracellular vesicles (EVs) are minute versions of cells limited by a lipid bilayer containing cytoplasm from the cell that releases them, but without a nucleus and thus unable to self‐reproduce. EVs contain multiple molecules (proteins, lipids, glycans, and nucleic acids) they can induce complex responses in cells.
Clotilde Théry, Daniel Louvard
wiley   +1 more source

Drilling fluid loss model and loss dynamic behavior in fractured formations

Petroleum Exploration and Development, 2014
In view of the lost circulation in fractured formations, a two-dimensional transient model for describing a power-law drilling fluid loss in an arbitrarily-oriented, compressible, permeable, rough-walled fracture was introduced.
Lichun JIA, Mian CHEN, Bing HOU, Zhen SUN, Yan JIN   +4 more
doaj  

Influence of hydrodynamic and functional nonlinearities of blood flow in the cerebral vasculature on cerebral perfusion and autoregulation pressure reserve

Scientific Reports, 2023
Ensuring the transport of oxygenated blood to the brain is one of the priorities of the human body. In the literature, there are many models of cerebral circulation with different levels of complexity used to assess pathological conditions, support ...
Adam Piechna, Krzysztof Cieślicki
doaj   +1 more source

Effect of slip on circulation inside a droplet [PDF]

arXiv, 2013
Internal recirculation in a moving droplet plays an important role in several droplet-based microfluidic devices as it enhances mixing, chemical reaction and heat transfer. The occurrence of fluid slip at the wall, which becomes prominent at high shear rates and lower length scales, results in a significant change in droplet circulation.
arxiv  

Earth's rotation forms the general circulation of the atmosphere [PDF]

arXiv, 2023
The general circulation of the atmosphere determines the long-term variability of weather processes. This circulation is driven by the temperature differences between the poles and the equator, causing air to move along the Earth's surface. However, this requires enhanced pressure at the poles, which is not observed.
arxiv  

The motion of the 2D hydrodynamic Chaplygin sleigh in the presence of circulation [PDF]

, 2013
We consider the motion of a planar rigid body in a potential flow with circulation and subject to a certain nonholonomic constraint. This model is related to the design of underwater vehicles.
A. V. Borisov, A. V. Borisov, B. N. Shashikanth, B. N. Shashikanth, D. V. Zenkov, E. Kanso, F. Fassò, G. R. Kirchhoff, H. Lamb, I. S. Gradshteyn, J. Hermans, J. Roenby, J. Vankerschaver, J. Vankerschaver, Joris Vankerschaver, L. C. García-Naranjo, L. Milne-Thomson, Luis C. García-Naranjo, M. J. Field, N. E. Leonard, P. Appell, P. Ashwin, P. G. Saffman, P. K. Newton, R. H. Rand, S. A. Chaplygin, S. A. Chaplygin, S. Kelly, S. M. Ramodanov, T. Chambrion, T. Chambrion, T. Levi-Civita, Yu. N. Fedorov, Yu. N. Fedorov, Yu. N. Fedorov, Yuri N. Fedorov   +35 more
core   +3 more sources

Universal Proteomic Signature After Exercise‐Induced Muscle Injury in Muscular Dystrophies

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Several neuromuscular disorders (NMDs) are characterized by progressive muscle damage and are marked by the elevation of circulating muscle proteins from activity‐related injury. Despite a diverse array of genetic drivers, many NMDs share similar patterns of exercise intolerance and higher concentrations of muscle injury proteins ...
Mads G. Stemmerik, Benjamin Barthel, Nanna R. Andersen, Sofie V. Skriver, Alan J. Russell, John Vissing   +5 more
wiley   +1 more source

Study on the internal two-phase flow of the inverted-umbrella aerator

Advances in Mechanical Engineering, 2019
In order to reveal the gas–liquid two-phase flow pattern of inverted-umbrella aerator, the high-speed photography technology, particle image velocimetry, and Volume of Fluid model are employed to capture the free-surface dynamics and velocity ...
Liang Dong, Jiawei Liu, Houlin Liu, Cui Dai, Dmitry Vladimirovich Gradov   +4 more
doaj   +1 more source

Cerebrospinal fluid dynamics and intracranial pressure elevation in neurological diseases

Fluids and Barriers of the CNS, 2019
The fine balance between the secretion, composition, volume and turnover of cerebrospinal fluid (CSF) is strictly regulated. However, during certain neurological diseases, this balance can be disrupted.
Steven William Bothwell, Damir Janigro, Adjanie Patabendige   +2 more
doaj   +1 more source

Breaking Kelvin: Circulation conservation and vortex breakup in MHD at low Magnetic Prandtl Number [PDF]

arXiv, 2018
In this paper we examine the role of weak magnetic fields in breaking Kelvin's circulation theorem and in vortex breakup in two-dimensional magnetohydrodynamics for the physically important case of a low magnetic Prandtl number (low $Pm$) fluid. We consider three canonical inviscid solutions for the purely hydrodynamical problem, namely a Gaussian ...
arxiv