Results 101 to 110 of about 1,593,419 (296)

Innate Immune Reprogramming Mediated by Endogenous Retroelement Dysregulation Drives Multiple Sclerosis Progression

Annals of Clinical and Translational Neurology, EarlyView.
Epigenetic reprogramming in hematopoietic stem and progenitor cells (HSPCs) and downstream myeloid cells, mediated by H3.3 downregulation and endogenous retroelement (ERE) overexpression, contributes to the progression of multiple sclerosis (MS). ABSTRACT Background Skewed myelopoiesis in the bone marrow has been identified as a key driver of multiple ...
Li‐Mei Xiao, Qiu‐Ping Zhao, Run‐Yun Li, Wei Chen, Huan‐Huan Song, Wan‐Jin Chen, Ying Fu   +6 more
wiley   +1 more source

Taylor–Couette flow of a fractional second grade fluid in an annulus due to a time-dependent couple

Nonlinear Analysis, 2011
Exact solutions for the velocity field and the associated shear stress, corresponding to the flow of a fractional second grade fluid between two infinite coaxial cylinders, are determined by means of Laplace and finite Hankel transforms.
M. Imran, M. Kamran, M. Athar, A. A. Zafar   +3 more
doaj  

Contribution of PPP with Ambiguity Resolution to the Maintenance of Terrestrial Reference Frame

Remote Sensing
Precise Point Positioning (PPP) provides static positioning at the millimeter level and kinematic positioning ranging from millimeters to decimeters globally.
Ruyuan Wang, Junping Chen, Yize Zhang, Weijie Tan, Xinhao Liao   +4 more
doaj   +1 more source

A Fine Velocity and Strain Rate Field of Present-Day Crustal Motion of the Northeastern Tibetan Plateau Inverted Jointly by InSAR and GPS

Remote Sensing, 2019
Interferometric synthetic aperture radar (InSAR) data from 6 Envisat ASAR descending tracks; spanning the 2003⁻2010 period; was used to measure interseismic strain accumulation across the Northeastern Tibetan Plateau.
Xiaogang Song, Yu Jiang, Xinjian Shan, Wenyu Gong, Chunyan Qu   +4 more
doaj   +1 more source

Periodic Pattern in the Residual-Velocity Field of OB Associations

, 2008
An analysis of the residual-velocity field of OB associations within 3 kpc of the Sun has revealed periodic variations in the radial residual velocities along the Galactic radius vector with a typical scale length of lambda=2.0(+/-0.2) kpc and a mean ...
A. K. Dambis, A. K. Dambis, A. K. Dambis, A. M. Mel’nik, A. M. Mel’nik, A. M. Mel’nik, A. M. Mel’nik, A. S. Rastorguev, A. S. Rastorguev, A. S. Rastorguev, B. G. Elmegreen, B. G. Elmegreen, C. Blaha, C. C. Lin, C. D. Garmany, C. J. Jog, E. V. Glushkova, G. Bertin, G. Bertin, L. N. Berdnikov, L. N. Berdnikov, L. N. Berdnikov, M. Barbier-Brossat, M. Creze, P. G. Kulikovskii, P. T. Zeeuw de, R. M. Humphreys, R. P. Fenkart, T. G. Sitnik, T. G. Sitnik, T. G. Sitnik, T. P. Gerasimenko, V. A. Ambartsumyan, W. B. Burton, W. B. Burton, W. H. Press, W. W. Morgan, W. W. Roberts, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Mishurov, Yu. N. Mishurov, Yu. N. Mishurov, Yu. N. Mishurov   +44 more
core   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source

Study of the Discharge Stream from a Standard Rushton turbine impeller

Acta Polytechnica, 2004
The discharge stream from a standard Rushton turbine impeller exhibits special flow properties different from the characteristics of the velocity field in other parts of the volume of an agitated liquid in a cylindrical baffled vessel, e.g.
J. Kratěna, I. Fořt
doaj  

Study of vortex state of the atmosphere

Наука. Инновации. Технологии, 2022
The earth's atmosphere as a whole has a very complex system of movements, changing over time. The main features of these movements from year to year are repeated and are well represented on medium and climate maps, which are the source for conclusions ...
Julia Alexandrovna Semenova, Robert Gurgenovich Zakinayn, Julia Leontievna Smerek, Nina Evgenevna Danilova, Arthur Robertovich Zakinayn   +4 more
doaj  

The Equivalence of the Lagrangian-Averaged Navier-Stokes-{\alpha} Model and the Rational LES model in Two Dimensions

, 2011
In the Large Eddy Simulation (LES) framework for modeling a turbulent flow, when the large scale velocity field is defined by low-pass filtering the full velocity field, a Taylor series expansion of the full velocity field in terms of the large scale ...
Bouchet, Freddy, Nadiga, Balasubramanya T.   +1 more
core   +1 more source

The Role of Calcitonin Gene‐Related Peptide in High‐Altitude Headache: A Prospective Field Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐altitude headache (HAH) is a common neurological condition associated with rapid ascent to high altitude. The pathophysiological mechanisms underlying HAH remain incompletely understood. Calcitonin gene‐related peptide (CGRP), a neuropeptide implicated in migraine pathophysiology, may play a key role in the pathophysiology of ...
Roman Schniepp, Ludwig Karrasch, Helena Breitenstein, Andreas Straube, Katharina Kamm   +4 more
wiley   +1 more source