<正> Holley et al. were the first in 1965 to determine the primary sequence of a nucleic acid—yeast alanine transfer RNA. This molecule consists of 76 nucleoti
<正> There have been brief reports about CO2 in groundwater as a precursor of earthquake, but no good examples have been given yet. Since November 1975 we have
<正> The opiate antagonist naloxone could partially reverse acupuncture analgesia. This has provided an indirect support for the hypothesis that endorphins play
<正> Several virus strains were isolated from different organs of the acute or subacute Keshan disease (克山病) sufferers and on them was made a preliminary ser
<正> According to the combinatorial rule, the numbers of possible and distinct invariant or univariant assemblages in unary n+k (n=1, k≥3) phase multisystems m
<正> By earthquake migration (or epicentral migration) is meant that earthquakes occur one after another according to a certain space law. The study of this phe
<正> Of the various factors responsible for the formation of the world’s climate, radiation from the sun, which serves as an inexhaustible source of energy, is
<正> Glucagon is a polypeptide hormone of 29 amino acids which is synthesized by the α-cell of the islets of Langerhans of pancreas. One of its effects is to c
<正> In a previous paper, the distribution of nucleotides of H-RNA* and S-RNA isolated from two silk-glands (Bombyx mori and Attacus ricini) as well as from two