Should we concern about reinfection in COVID-19?

Erythema nodosum :what should we consider about it?

P-138: What Should We Know about Ethical Problem in ART? A Study of Systematic Review

Background: Advances in medical technology have had major impacts on human reproduction. The development of effective contraceptive methods has reduced unwanted fertility, and the development of a variety of drugs and procedures has, for the first time, permitted women with fertility problems to reasonably expect that they can fulfill their desires to have children. So, The aim of this review a...

How Should We Think About Bursts?

Population bursts of action potentials are the most prominent feature of activity recorded from mam-malian neuronal networks grown on MEAs. In the intact brain or spinal cord, they are considered variously as motor patterns, sensory gates, sleep spindles, UP-states, developmental signals, epileptiform activity, or memories. I prefer to remain agnostic about what bursts " mean " in vitro, and to...

Population ageing: what should we worry about?

Approximately half the world's population now has replacement-level fertility or below. The UK experience in accommodating to a changing dependency ratio provides some generalizable insights. A mechanistic approach assuming a fixed retirement age and a need to raise fertility or increase immigration in order to maintain pensions at a fixed proportion of the gross domestic product (GDP) is overs...

What Should we Teach About Petri Nets?

I challenge the traditional choice of topics and the usual style of presentation for introductory courses on Petri nets. For such a course I suggest a number of aspects that usually are not considered fundamental. This includes faithful models, a slight revision of formalisms and terminology, specific techniques to increase the expressive power of Petri net models, aspects derived from distribu...