Step-by-Step Solution:1. Understanding the Menstrual Cycle: The menstrual cycle, also known as the sexual cycle, refers to the regular natural changes that occur in the female reproductive system.2. <str
Okumura, N. Sasaki, R. Kogawa, K. Takahasi, H. Mano, M. Kofune, K. Ohkubo, T. Nakai, S. Kunimoto and A. Hirayama, "Monophasic action potential duration alternans after abrupt shortening of the cardiac cycle in humans," Journal of Arrhythmia, vol. 30, p...
An easy arithmetical calculation indicates that the human heart must beat nearly 50,000,000 times in the course of a single year; and this cardiac performance continues undisturbed for three score years and ten in many a person. Even from the standpoint of the mechanism involved, this is a ...
Rheographic studies of the lung and aorta have been performed on 20 patients with atrial fibrillation and on 30 normal individuals before and after Valsalva's manoever. The findings disclose a strongly expressed positive correlation between the duration of the cardiac cycle and the rheographic systol...
Growth factor, steroid, and steroid antagonist regulation of cyclin gene expression associated with changes in T-47D human breast cancer cell cycle progres... Cyclins and proto-oncogenes including c-myc have been implicated in eukaryotic cell cycle control. The role of cyclins in steroidal ...
Effects of Cycle Length Changes in cycle length alter the action potential duration of cardiac cells and thus change their refractory periods. Consequently, the changes in cycle length are important factors in the initiation or termination of certain dysrhythmias. Changes in action potential durations ...
Abnormalities of ventricular action potential cause malignant cardiac arrhythmias and sudden cardiac death. Here, we aim to identify microRNAs that regulate the human cardiac action potential and ask whether their manipulation allows for therapeutic modu
The speed-duration relationship in human exercise, first established over a century ago (Kennelly, 1906), has evolved to provide two important parameters of physiological function: the speed asymptote of a rectangular hyperbola (critical speed), thought to be predominantly aerobic in nature, and the...
human exercise performance. In 1923, Nobel Laureate A.V. Hill proposed that maximal exercise performance is limited by the development of anaerobiosis in the exercising skeletal muscl... Timothy,David,Noakes - 《Physiologie Appliquee Nutrition Et Metabolisme》 被引量: 216发表: 2011年 Life cycle ...
Increased CO levels from space hemolysis can have second-messenger modulatory effects on intracellular processes of the cardiac, vascular, ocular, bone, nutrition, circadian cycle, orthostatic hypotension, brain and muscle systems of astronauts16,17. Space tourism will considerably expand the number of ...