Results 1 to 10 of about 49,903 (309)

Physiological non-Newtonian blood flow through single stenosed artery [PDF]

open access: yesTheoretical and Applied Mechanics, 2016
A numerical simulation to investigate the Non-Newtonian modeling effects on physiological flows in a three dimensional idealized artery with a single stenosis of 85% severity is given. The wall vessel is considered to be rigid.
Mamun Khairuzzaman   +2 more
doaj   +2 more sources

Physiologic blood flow is turbulent [PDF]

open access: yesScientific Reports, 2020
AbstractContemporary paradigm of peripheral and intracranial vascular hemodynamics considers physiologic blood flow to be laminar. Transition to turbulence is considered as a driving factor for numerous diseases such as atherosclerosis, stenosis and aneurysm.
Saqr, Khalid M.   +6 more
openaire   +2 more sources

Fluid Analysis of Double-Layered Blood Flow through a Tapered Overlapping Stenosed Artery with a Porous Wall [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2022
In this present work, we examine the fluid of double-layered blood flow through a tapered overlapping stenosed artery with a porous wall. This two-layered blood flow problem comprises the peripheral layer as Newtonian fluid flows and the central core ...
Moses Dada   +2 more
doaj   +1 more source

Reciprocating intestinal flows enhance glucose uptake in C. elegans

open access: yesScientific Reports, 2022
Despite its physiological and pathological importance, the mechanical relationship between glucose uptake in the intestine and intestinal flows is unclear. In the intestine of the nematode Caenorhabditis elegans, the defecation motor program (DMP) causes
Yuki Suzuki   +3 more
doaj   +1 more source

A novel roller pump for physiological flow [PDF]

open access: yesArtificial Organs, 2020
AbstractHaving physiological correct flow waveforms is a key feature for experimental studies of blood flow, especially in the process of developing and testing a new medical device such as stent, mechanical heart valve, or any implantable medical device that involves circulation of blood through the device.
Albert Chong   +6 more
openaire   +3 more sources

Self-organized canals enable long-range directed material transport in bacterial communities

open access: yeseLife, 2022
Long-range material transport is essential to maintain the physiological functions of multicellular organisms such as animals and plants. By contrast, material transport in bacteria is often short-ranged and limited by diffusion. Here, we report a unique
Ye Li   +6 more
doaj   +1 more source

Pulmonary capillary recruitment and distention in mammalian lungs: species similarities

open access: yesEuropean Respiratory Review, 2022
Pulmonary arterial pressure rises minimally during exercise. The pulmonary microcirculation accommodates increasing blood flow via recruitment of pulmonary capillaries and, at higher flows, by distention of already perfused capillaries.
David Langleben   +4 more
doaj   +1 more source

High bias gas flows increase lung injury in the ventilated preterm lamb. [PDF]

open access: yesPLoS ONE, 2012
BACKGROUND: Mechanical ventilation of preterm babies increases survival but can also cause ventilator-induced lung injury (VILI), leading to the development of bronchopulmonary dysplasia (BPD).
Katinka P Bach   +10 more
doaj   +1 more source

On the physiology of flow: Bridging flow theory with the biopsychosocial model of challenge and threat

open access: yesInternational Journal of Psychophysiology, 2022
We examined the relation between psychological flow and cardiovascular markers of challenge. According to flow theory and the biopsychosocial model of challenge and threat (BPS-CT) optimal motivational states (flow, challenge) arise during activities where task demands meet personal resources. Participants (N = 154) played Tetris in either an underload,
Scheepers, D.T., Keller, J.
openaire   +5 more sources

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