<正> Ⅰ. INTRODUCTIONFor many years it has been well known that in the interaction of free electronwith electro-magnetic wave there exists a scattering effect,
<正> In 1967, the synthetic polyriboinosinic acid: polyribocytidylic acid comlex (PIC) was found by Field to be a potent inducer of interferons. PIC has an anti
<正> In the course of experimental Brucella infection, the determination of circulatory antibody and the allergic reaction can only reflect the reactivity of th
<正> Herschbach’s electronegativity ordering rule is a very useful empirical one. According to the rule, a reaction between a radical (or an atom) and a molecu
<正> Qualitative differences in the actions of various sympathomimetic amines have been proved for many years. Fleckenstein and Burn proposed a classification o
<正> The paper chromatographic separation of selenium, tellurium, and noble metals with systems containing alcohols or ketones has been reported by many investi
<正> The hierachical decomposition method for the input of Chinese characters in computers is an encoding technique for four alphabets or fewer to represent a C
<正> The complex formation of metal ions with DNA, proteins and other bio-molecules plays a vital role in many biological processes and has been an important to
<正> A large body of facts has shown that, for the ionic addition reactions of an unsymmetrical reagent onto an unsymmetrical ethylenic bond, the two possible p
<正> Toward the end of the Middle Ordovician, the whole North China Paraplatform was uplifted. It stood as a land-mass subjected to erosion and denudation till