<正> High percentage of albino plantlets is a problem in anther culture of cereal plants.Yet, the mechanism of albino is not clear. Some authors suggested that
<正> Ⅰ. THE DYADIC GREEN’S FUNCTION ■ AND THE FIELD DISTRIBUTION It has been known that the field excited by a current source can be expressed by the dyadic
<正> In his papers [1, 2], A. K. Varma discussed some lacunary interpotation splines. In [3] we pointed out the mistake in the proof of Theorem 2 in [1] and gav
<正> Ⅰ. INTRODUCTION The symmetry of non-rigid molecules can be described by Longuet-Higgins’ permutation-inversion groups (PI groups). A PI group is composed
<正> It is of great significance to determine the bandwidth of a graph in computer science and other areas. This is, however, not an easy problem in general. As
<正> The pyrrolizidine alkaloid monocrotaline-N-oxide is synthesized from monocrotaline (C16H23NO6). Many pyrrolizidine alkaloids are known as antitumor agents,
<正> Dipolar aprofic solvents, for example, the dimethyl sulfoxide (DMSO), is known to be a strong alkali metal ions solventors, that make anions with counter-i
<正> In 1977, we gathered a skyblue to bluish mineral in the gabbro and gabbro-diorite country rock of 3? pegmafite, and our studies showed that it is holmquist
<正> Let G be a permutation group on a finite set. A base for G is a sequence X=α1,α2,…,αx of points such that the only element of G fixing all the aj is th
<正> Let Sn+p be a unit (n+p) sphere and f: M→Sn+p an isometric immersion of an n-ditmensional Riemannian manifold M into Sn+p, If the length of the mean curvatu