This capacitive venous transfusion alertor is based on rise time of RC circuit and input capture function of timer in the microcontroller. The measure element of alertor is integrated with circuit board, it has the advantages of simple structure and low cost. Combined with narrow band intent of things(NB-IoT) technology to upload data, it can reduce the workload of medical personnel and caregivers, avoid unnecessary trouble and danger.
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http://dx.doi.org/10.3969/j.issn.1671-7104.2019.04.020 | DOI Listing |
Clin Auton Res
October 2024
Department of Paediatrics, New York Medical College, Valhalla, NY, USA.
Purpose: Vasovagal syncope is thought to be mediated by a progressive fall in cardiac output secondary to venous pooling of blood in the splanchnic circulation. How and when this occurs before syncope has not been determined.
Methods: A total of 20 patients who became hypotensive during head-up tilt (age 40.
Br J Pharmacol
November 2024
School of Chemical, Materials, and Biomedical Engineering, University of Georgia, Athens, Georgia, USA.
Cureus
July 2024
Research, Microsoft Engineering, Seattle, USA.
A new prototype of ventilator mode, based on high-frequency ventilation (HFV), aims to address the interrelations among diverse respiratory variables, several intercardiovascular parameters rapports, and instantaneously the intrarespiratory and cardiac interactions. This article proposes a logarithmic network of integrated correlation ratio H/V, R , that primarily relates both dependent respiratory (V) and independent hemodynamic variables (H). Given a constant steady state of the heart and vasculature, a difference between calculated ratio (R calc), and optimized ratio (R opt) could be utilized to adjust many aspects of several parameters and outcomes in critically ill patients.
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September 2024
The Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN (A.T., J.A.N., T.H., Y.N.V.R., B.A.B.).
Planta
May 2024
Department of Forest and Rangeland Stewardship, Colorado State University, 1472 Campus Delivery, Fort Collins, CO, 80523-1472, USA.
Leaf vein network cost (total vein surface area per leaf volume) for major veins and vascular bundles did not differ between monocot and dicot species in 21 species from the eastern Colorado steppe. Dicots possessed significantly larger minor vein networks than monocots. Across the tree of life, there is evidence that dendritic vascular transport networks are optimized, balancing maximum speed and integrity of resource delivery with minimal resource investment in transport and infrastructure.
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