Results 11 to 20 of about 80,518 (304)

Preconditioning [PDF]

open access: yesActa Numerica, 2015
The computational solution of problems can be restricted by the availability of solution methods for linear(ized) systems of equations. In conjunction with iterative methods, preconditioning is often the vital component in enabling the solution of such systems when the dimension is large. We attempt a broad review of preconditioning methods.
openaire   +3 more sources

Ischemic and Pharmacological Preconditioning [PDF]

open access: yesОбщая реаниматология, 2011
The review article deals with the problem of ischemic preconditioning, the universal physiological mechanism of cell protection from hypoxia. Preconditioning is the term used to describe a phenomenon of the enhanced tolerance of a cell to a damaging ...
V. V. Likhvantsev   +7 more
doaj   +2 more sources

Mitochondrial preconditioning: a potential neuroprotective strategy

open access: yesFrontiers in Aging Neuroscience, 2010
Mitochondria have long been known as the powerhouse of the cell. However, these organelles are also pivotal players in neuronal cell death. Mitochondrial dysfunction is a prominent feature of chronic brain disorders, including Alzheimer's and ...
Sónia C Correia   +17 more
doaj   +2 more sources

Spotlight on preconditioning [PDF]

open access: yesCardiovascular Research, 2002
The phenomenon of ischaemic preconditioning, in which a period of sublethal ischemia can profoundly protect the cell from subsequent lethal ischemic insult, has without doubt been responsible for an enormous amount of research over the last 15 years. Since the original publication in 1986 by Murry et al.
Derek M, Yellon, James M, Downey
openaire   +2 more sources

A study of optimal concentration range and time window of sevoflurane preconditioning for brain protection in MCAO rats

open access: yesBMC Anesthesiology, 2020
Background Sevoflurane preconditioning improves brain function in MCAO rats, and there are several methods for determining appropriate concentration and time windows for preconditioning.
Ying Deng   +6 more
doaj   +1 more source

Preconditioning of arteriogenesis [PDF]

open access: yesCardiovascular Research, 2005
Last decade, the shear stress caused by increased blood flow in collateral circulation after occlusion of main artery was recognized as a trigger of vascular remodeling and collateral growth. The goal of this study was to differentiate whether the on-going increased blood flow is necessary for the vascular remodeling or the remodeling, once in progress,
Dimitri, Scholz, Wolfgang, Schaper
openaire   +2 more sources

Preconditioning as a method of neuroprotection in a model of brain infarct

open access: yesАнналы клинической и экспериментальной неврологии, 2017
Preconditioning of ischemic and hypoxic type was investigated as a method of protecting brain against acute ischemic injury. The preconditioning methods were applied to experimental rats 24 h before the time when local brain infarct was done by middle ...
R. M. Khudoerkov   +4 more
doaj   +1 more source

The Mechanisms of Peripheral Nerve Preconditioning Injury on Promoting Axonal Regeneration

open access: yesNeural Plasticity, 2021
Two major factors contribute to the failure of axonal regrowth in the central nervous system (CNS), namely, the neuronal intrinsic regenerative capacity and the extrinsic local inhibitory microenvironments.
Xiaoyan Yang   +4 more
doaj   +1 more source

Controversies in preconditioning [PDF]

open access: yesCardiovascular Drugs and Therapy, 1997
Preconditioning is an effective mean of protecting the heart against prolonged ischemia by pretreating it with a minor insult, and the present paper reviews various controversies in this highly active field of research. In many models, adenosine plays a role by triggering the activation of protein kinase C. It may work in conjunction with other agents,
J W, de Jong   +4 more
openaire   +2 more sources

Preconditioning of wavelet BEM by the incomplete Cholesky factorization [PDF]

open access: yes, 2012
The present paper is dedicated to the preconditioning of boundary element matrices which are given in wavelet coordinates. We investigate the incomplete Cholesky factorization for a pattern which includes also the coefficients of all off-diagonal bands ...
Harbrecht, Helmut
core   +1 more source

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