Simulation on herd behaviors and behavior groups in case of exigency of social safety by use of cellular automata model;

Non-Profit Organization in Perspective of Social Security;

This article elaborates respectively the definition of social security in broad and narrow sense, and then points out the hidden risks with which the transitional China is faced, which can be characterized by three dimensions: the symbiosis of multi risks, the social vulnerability for keeping itself secure, and the extremization of the social thinking on preventing risks.

?By the analysis of the relations between modern communication technology and world hegemony, internet communication and social security of socialist countries, the thesis analyses the challenge to political system, ideology and cultural tradition of socialist countries from powerful countries of communication.

The Transitional Primary Community and Its Problems of Social Safety;

This article analyzes the structures of a trouble tree and a natural disaster system, considers that the safety protection of the society and the sustainable development can't be divided, and brings up a countermeasure to establish the system for social safety pro.

This paper offers a study on the six relations of the population safety,including the relations between the population safety and the well-off society,and the human safety,and social safety,and population phenomenon,and the population development strategy.

It is like a mould ,which convex is the guarantee of the security of society,and whose concave is the protection of the individual freedom.

From the comparison,the characteristic of the language and texts in the mess media has an important influence in the process of social events generating.