Results 11 to 20 of about 149,522 (97)

Responses of the Respiratory Ventilation and Certain ECG to the VO2 Percentage in two Aerobic Stresses depending upon Resistance and Speed [PDF]

open access: yesمجلة الرافدين للعلوم الرياضية, 2019
The pulmonary and electrocardiograph (ECG) variables are from the most interpretative indicators of the cardio-pulmonary system to bump  blood and deliver oxygen for active tissues during various stages of a physical stress.
Ahmed Aldabagh, Ali Jasem Alhyali
doaj   +1 more source

PENGEMBANGAN MULTIMEDIA PEMBELAJARAN INTERAKTIF MATERI SISTEM PEREDARAN DARAH UNTUK MENINGKATKAN MOTIVASI BELAJAR MAHASISWA PGSD

open access: yesKhazanah Pendidikan, 2022
The study aims to (1) produce interactive learning multimedia on circulatory system materials for android and windows that are in accordance with student needs, (2) determine the feasibility and effectiveness of interactive learning multimedia on ...
Anang Fathoni, Herman Dwi Surjono
doaj   +1 more source

Investigation of a non-invasive venous blood flow measurement device

open access: yesCurrent Directions in Biomedical Engineering, 2019
Venous blood circulation can be restricted due to various conditions commonly indicating a related medical condition. However, current non-invasive methods for determining venous blood flow are limited to be either very inaccurate or expensive ...
Stewart Kent   +3 more
doaj   +1 more source

Evaluation of the efficiency of a new pulsatile flow‑generating circulatory-assist system in rotary blood pumps. Research on a mathematical model

open access: yesВестник трансплантологии и искусственных органов, 2022
Objective: to study the effect of a pulsatile flow-generation (PFG) device on the basic hemodynamic parameters of the circulatory system using a mathematical model.Results. Modelling and simulation showed that the use of PFG significantly (76%) increases
G. P. Itkin   +4 more
doaj   +1 more source

On the Morphology of the Drosophila Heart

open access: yesJournal of Cardiovascular Development and Disease, 2016
The circulatory system of Drosophila melanogaster represents an easily amenable genetic model whose analysis at different levels, i.e., from single molecules up to functional anatomy, has provided new insights into general aspects of cardiogenesis, heart
Barbara Rotstein, Achim Paululat
doaj   +1 more source

HOTS assessment in circulatory system learning: Validity, reliability, and item quality

open access: yesJPBI (Jurnal Pendidikan Biologi Indonesia), 2021
Biology learning, based on the curriculum-2013, requires students to be skilled at analyzing, evaluating, and creating to achieve Higher-Order Thinking Skills (HOTS). Thus, HOTS assessment instrument is crucial to be made.
Yosi Laila Rahmi   +3 more
doaj   +1 more source

THE CAUSES OF DEATH IN THE PROVINCE OF ROME BETWEEN 1981 AND 2007: A GEOGRAPHICAL ANALYSIS

open access: yesGeography, Environment, Sustainability, 2011
In this paper we provide an overview of the main causes of death in the province of Rome in 1981 and 2007, showing the most relevant variations which have been recorded over time.
Cristiano Pesaresi   +2 more
doaj   +1 more source

A mathematical model of the metabolic process of atherosclerosis [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2016
A mathematical model of the metabolic process of atherosclerosis is constructed. The functioning of the polyenzymatic prostacyclin-thromboxane system of blood and the influence of a level of “bad cholesterol”, namely low density lipoproteins (LDL), on it
V. I. Grytsay
doaj   +1 more source

Outcomes related to hospital characteristics of heart transplant centers: A National Readmission Database analysis

open access: yesJHLT Open
Background: This study showcases an analysis performed using the National Readmission Database (NRD) from 2016 to 2019 to analyze the impact of ownership, location, size, and teaching status of transplant centers on cardiac transplant outcomes.
Farshad Amirkhosravi, MD, MPH   +9 more
doaj   +1 more source

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