Results 11 to 20 of about 6,434,349 (320)
Flow pumping system for physiological waveforms [PDF]
Medical & Biological Engineering & Computing, 2010 A pulsatile flow pumping system is developed to replicate flow waveforms with reasonable accuracy for experiments simulating physiological blood flows at numerous points in the body.
William Tsai, Ö. Savaş
semanticscholar +5 more sources
Physiologic blood flow is turbulent [PDF]
Scientific 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
Self-organized canals enable long-range directed material transport in bacterial communities
eLife, 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
European 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]
PLoS 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
Critical Care, 2023 Background During high-flow nasal cannula (HFNC) therapy, flow plays a crucial role in the physiological effects. However, there is no consensus on the initial flow settings and subsequent titration.
Jie Li +5 more
doaj +1 more source
Derivation and analysis of a fluid-dynamical model in thin and long elastic vessels
Networks and Heterogeneous Media, 2006 Starting from the three-dimensional Newtonian and incompressible Navier-Stokes equations in a compliant straight vessel, we derive a reduced one-dimensional model by an averaging procedure which takes into consideration the elastic properties of the wall
Debora Amadori +2 more
doaj +1 more source
A comparison of two mathematical models of the cerebrospinal fluid dynamics
Mathematical Biosciences and Engineering, 2019 In this paper we provide the numerical simulations of two cerebrospinal fluid dynamics models by comparing our results with the real data available in literature (see Section 4). The models describe different processes in the cerebrospinal fluid dynamics:
Donatella Donatelli +2 more
doaj +1 more source
Scientific Reports, 2022 Patients with neuromuscular disease often suffer from weak and ineffective cough resulting in mucus retention and increased risk for chest infections. Different airway clearance techniques have been proposed, one of them being the insufflator/exsufflator
Carmen Casaulta +4 more
doaj +1 more source
Сибирский научный медицинский журнал, 2022 Heat and moisture exchange filters create additional dead space, comparable in volume to physiological, in premature newborns. It makes carbon dioxide remove difficultу.
A. N. Shmakov +3 more
doaj +1 more source