In this article, a study is made of the main characteristics and functions of the cardiovascular system and the lungs, indicating how they unite to be able to bring oxygenated blood to the different cells of the human organism, as well as other essential nutrients for the harmonious functioning of our body; In addition, the main diseases that can affect these organs and the causes that could cause them are indicated. A model is made by means of differential equations of the blood oxygenation process and by means of a qualitative study conclusion are given, predicting the future behavior of the process.
In the present work, a study is made of the development of epidemics, in particular the one referring to the epidemic transmitted by SAR CoV 2; a model is developed through a system of Differential Equations that simulates this process, the system is simplified, if it makes a qualitative study of the trajectories of the system giving conclusions regarding the hole behavior of the trajectories, thus proving control of the epidemic; a critical case is treated and an example is presented that responds to the conditions of the introduced critical case, graphically proving the conclusions demonstrated analytically.
In this paper an analysis is made of the characteristics that the infection process by means of the SARS-CoV2 coronavirus must present so that multiple waves can appear. A model is made that simulates this process according to the sign of the preceding numerical value of the infected population. When the sign is different from zero, conclusions are reached regarding the behavior of infected, recovered and susceptible populations, but when this sign is zero, the system that models the process is simplified, and applying the qualitative theory of differential equations conclusions are reached regarding the behavior of the process. At the end, graphs are made corresponding to concrete examples that corroborate the results obtained from the theoretical point of view.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.