Theory on prospect of population evolution processes

This paper is aimed at investigating the dynamic process of population growth applied to population of the People's Republic of China. The discrete and continuous models of population evolution process are revised and adjusted to suit the social conditions of China. The relationship between two kinds of models is established. A series of new formulae of demographic indices are studied and defined as functions on the negative space of generalized solutions of the population equation. Based on survey data collected in China for recent years, the prospect of population growth according to different projections is offered for a one-hundred-year period from now on.

Postsplenectomy pneumococcemia in adults

We describe two adults with fulminant pneumococcemia and disseminated intravascular coagulation aftertraumatic splenectomy. One died in a few days, and the other survived with amputation of gangrenous toes and fingers. Although the relationship between the serious blood-borne bacterial infection with disseminated intravascular coagulation and lack of adequate splenic tissue has been well established, the mechanism is poorly understood and there are no specific therapeutic measures available. We review the literature in regard to the possible prophylactic measures and discuss the benefits of various measures.