Results 71 to 80 of about 10,661,666 (408)
Shape Optimization of hemolysis for shear thinning flows in moving domains [PDF]
arXiv, 2023 We consider the $3$D problem of shape optimization of blood flows in moving domains. Such a geometry is adopted to take into account the modeling of rotating systems and blood pumps for instance. The blood flow is described by generalized Navier-Stokes equations, in the particular case of shear-thinning flows.
arxiv
Rheology of human blood plasma: Viscoelastic versus Newtonian behavior
, 2013 We investigate the rheological characteristics of human blood plasma in shear and elongational flows. While we can confirm a Newtonian behavior in shear flow within experimental resolution, we find a viscoelastic behavior of blood plasma in the pure ...
Arratia, P.E. +6 more
core +1 more source
Inert gas clearance from tissue by co-currently and counter-currently arranged microvessels [PDF]
, 2012 To elucidate the clearance of dissolved inert gas from tissues, we have developed numerical models of gas transport in a cylindrical block of tissue supplied by one or two capillaries. With two capillaries, attention is given to the effects of co-current
Bailey HR +15 more
core +2 more sources
Journal of Cerebral Blood Flow and Metabolism, 2016 Noninvasive imaging of cerebral blood flow provides critical information to understand normal brain physiology as well as to identify and manage patients with neurological disorders. To date, the reference standard for cerebral blood flow measurements is
A. Fan +3 more
semanticscholar +1 more source
Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia
FEBS Letters, EarlyView.This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley +1 more source
Body Position Affects Capillary Blood Flow Regulation Measured with Wearable Blood Flow Sensors
Diagnostics, 2021 In this study we demonstrate what kind of relative alterations can be expected in average perfusion and blood flow oscillations during postural changes being measured in the skin of limbs and on the brow of the forehead by wearable laser Doppler ...
Andrey A. Fedorovich +6 more
doaj +1 more source
Elliptic cross sections in blood flow regulation [PDF]
arXiv, 2023 Arterial deformations arise in blood flow when surrounding tissue invades the space available for a blood vessel to maintain its circular cross section, the most immediate effects being a reduction in blood flow and redistribution of shear stress. Here we consider deformations from circular to elliptic cross sections. Solution of this problem in steady
arxiv
Pancreatic islet blood flow and its measurement
Upsala Journal of Medical Sciences, 2016 Pancreatic islets are richly vascularized, and islet blood vessels are uniquely adapted to maintain and support the internal milieu of the islets favoring normal endocrine function.
L. Jansson +15 more
semanticscholar +1 more source
FEBS Letters, EarlyView.Hermansky‐Pudlak syndrome type 1 (HPS‐1) is a rare, autosomal recessive disorder with poorly understood renal involvement. Urinary extracellular vesicle (uEV) proteomics and a novel Hps1 mouse model reveal mitochondrial abnormalities and lipid accumulation in HPS‐1 kidney proximal tubule cells. Serum ApoA1 correlates with kidney function in our patient
Dawn M. Maynard +7 more
wiley +1 more source
Control of Cerebral Blood Flow by Blood Gases
Frontiers in Physiology, 2021 Cerebrovascular reactivity can be measured as the cerebrovascular flow response to a hypercapnic challenge. The many faceted responses of cerebral blood flow to combinations of blood gas challenges are mediated by its vasculature’s smooth muscle and can ...
James Duffin +9 more
doaj +1 more source