On the one hand,rationality of economic man takes advantage of living ratio-nality and develops the modes of dimi nishing risks through the agents experience and personality and experts;on the other hand,the living rationality is challenged by the rationality o f economic man through cheating both the ac-quaintances and the strangers.

Synthesis and physiological activity of 4-(2′-furfuryl)aminoprimidine derivatives;

Advances in studies on chemical constituents and physiological activity of photosynthetic bacteria;

The preliminary probe of structure and physiological activity of glycosaminoglycan from Pinctada martensis;

The Biological Activity of some4-Chloro-3,5-Dinitrobenzotrifluoride Derivatives;

Study on the Synthesis and Biological Activity of Analogues of SDB-Ethylenediamine;

Synthesis and Biological Activity of "Polyamine-Drug" Conjugates;

This paper surveys the advance of Sesquiterpenes bioactivity in recent years,such as antitumor,antibacterial,antiviral,antimalarie and to liver,to bloodlipide' s effects.

Most of which have a potent bioactivity.

As an exploration of synthesizing gallotannins,the natural products with versatile biological activities 3 o galloyl D glucose (7) was prepared from gallic acid (1) and D glucose (3).

As an exploration of synthesizing gallotannins, the natural products with versatile biological activities, 3-o-galloyl-D-glucose was prepared from gallic acid and D-glucose.

The chemical constituents and biological activities of marine sponge Spongia were reviewed on this paper with 45 references.

Research development of chitooligosaccharides physiological activities;

The structural types,assay and physiological activities of tannins,are summaried.

Because of its good functional properties and physiological activities,it is used in many fields.