Based on the research of the hypergroup structure of the free Abelian group with one Generator,this paper creates the theory of the hypergroup s structure on the free Abelian group with two Generators,and gives deeply analyse and study.

Particularly,we prove that for any two elements of X,the corresponding hyperstructure obtained by P-join hyperopration is a commutative sub-hypergroup.

In this paper,tree problems are discussed (1) the Hypergroups on a hypergroup of a group;(2) the hyperring;(3) the hypergroups no a free group.

The relationship between multoplication and Set Operations in Hypergroups;

In this paper,the structrure af hypergroups has been discussed in de-tail and has been classified simply.

Isolation of side population of primary rat hepatic cells and analysis of its telomerase activity;

Isolation and identification of side populations from lung metastatic hepatocellular carcinoma in rats

Objectives: Hoechst33342/ fluorescence activated cell sorting method is used in this study to analyze whether the rat primary hepatic cells can be devided into the side population cells and the non-side population cells, which possess different efflux ability of the DNA-binding dye Hoechst33342.

To start with the conception of marginalization, confirm the meaning and categories of marginalized population, then put forwards the conception of marginalized population social medicine, and also analyze the necessity of the research of marginalized population social medicine, then probe into the main health problems of marginalized population.

Some new health problems as follows has appeared in Chinese cities as the development of urbanization: the fertility rate is decreasing further, the “new empty-nest house” and the “old empty-nest house” are concurrent in urban areas, the social medicine problems of marginalized population become more and more obvious, the public safety problem of urban residents is severe.