对烟草粉螟高毒力Bt菌的伴孢晶体研究

采用液体双向分离法提纯对烟草粉螟高毒力苏云金杆菌B t33,B t53,B tHB伴孢晶体,其纯度分别达99.93%,99.9%,99.8%.扫描电镜和透射电镜观察发现,不同菌株的晶体形状和数量组成各不相同.SDS-聚丙烯酰胺凝胶电泳分析(SDS-PAFE)发现3个菌株的电泳图谱不同,烟草粉螟二龄幼虫室内生物毒力测定,9天后B t33,B t53菌株100,300倍防治效果超过80%,B tHB菌株100,300,600倍对烟草粉螟二龄幼虫防治效果超过80%.     

数学形态学在圆形目标识别和定位中的应用

利用数学形态学简单准确和便于捕捉图形特征的特点，提出了一种提取圆形目标并定位图像方法。先用形态学开运算去除较小团块，再通过形态学边缘提取算法找出图像中物体边缘，通过圆形的判别标准，提取图像中圆形目标，并定位了圆心的位置。实验表明这是一种有效的提取圆形目标的方法。是实现多种特征定位的有效尝试。     

基于复杂网络的成语构词法分析

依据成语构词法建立复杂网络。词源来自权威成语字典,内容完整全面。通过对成语网络的分析,我们发现此网络满足小世界和无标度特征,且根据此网络度分布函数得出一种新的动态网络生成方法,此动态网络能很好的拟合实际的成语网络,因此可以从某种程度上揭示成语构词的发展规律。     

壮学与民族文学综合研究的领航人——西南边疆语言与文化专家访谈录之三“梁庭望专访”

梁庭望先生是著名的壮学家、民族文学研究专家。他的研究领域涉及壮学、壮侗语族民族历史文化、中国少数民族文学等。他的壮学研究成果推动了壮族文化发展,他用自己所学为壮乡发展做出了突出贡献。他提出的“中华文化板块结构”理论在学界引起很大反响,促进了民族文学理论研究。五十多年来,他在这些领域辛勤耕耘,不断开拓,为我国民族文化与文学研究事业做出了重要贡献。     

莕菜属(Nymphoides)研究的进展

对莕菜属植物的形态结构,生理、生态,药用价值等几个方面的研究现状进行了一定的概述.     

玉林话词法特征

玉林话词法,有不同于普通话的构词形式：“中心语＋定语”;小称形式有小称变调,也有小称变音;名词词缀以及动词、形容词重叠式,与普通话相比有同也有异。     

Morphological evolution from aquatic to terrestrial in the genus Oreolalax （Amphibia, Anura, Megophryidae）

A phylogeny of 17 species in the genus Oreolalax is reconstructed based on 21 morphological characters from adult specimens, skeleton specimens, tadpoles and eggs. Four species groups are recognized, of which the O. rugosus species group is the most primitive, the O. weigoldi species group is the second, the O. omeimontis species group is the third and the O. pingii species group is the most recently diversified. Based on the evolutional tendency of the morphological characters on the phylogenetic tree, it is proposed that the evolution of tympanum, tympanic annulus, columella, spoon-like cartilage and the web between toes reflect the habit changes from aquatic to terrestrial. Thus, Oreolalax is regarded as one important representative genus to study further the evolution of morphological characters from aquatic to terrestrial.     

The zoeal development of Nanocassiope granulipes (Sakai, 1939) (Crustacea: Decapoda: Brachyura: Xanthidae) described from laboratory-reared material

Ovigerous crabs of Nanocassiope granulipes (Sakai, 1939) were collected in South Korean waters and their larvae reared in the laboratory. Four zoeal stages are described and illustrated in detail. Morphological characteristics of zoea I, such as the antennal exopod, the endopod of the second maxilliped and the telson, are compared with other known first-stage zoeas from the Xanthinae. The firststage zoea of N. granulipes appears to be similar to those of Leptodius exaratus (H. Milne Edwards, 1834) and Macromedaeus distinguendus (de Haan, 1835).     

On the taxonomic status and biogeography of the Isolapotamidae Bott, 1970 (Decapoda,Brachyura)

Recent investigations of Asian freshwater crabs of the superfamily Potamoidea Ortmann, 1896 use the Potamidae Ortmann, 1896 as the only valid family, although three families have been described from South-East Asia: the Potamidae Ortmann, 1896, the Isolapotamidae Bott, 1970 and the Sinopotamidae Bott, 1970. Crabs formerly included in the Isolapotamidae are re-examined based on a new understanding of the morphology and function of the male gonopods. In particular, the morphology of the sperm transfer tube of the second gonopod is studied in detail. At least four types of sperm transfer are recognized representing four different modes of sperm transfer. Each type is morphologically constant for a number of genera. On the basis of these results the taxonomic status of the family Isolapotamidae is reconsidered. A new genus Takpotamon is erected for Potamon maesotense Naiyanetr, 1992 from Thailand, the genera Dromotelphusa Naiyanetr, 1992 and Flabellamon Ng, 1996 are re-characterized and the genus Thaiphusa Ng and Naiyanetr, 1993 is synonymized with Demanietta Bott, 1966. All the morphological results show biogeographical relevance and the resulting distribution patterns reflect the palaeogeographic and palaeoclimatic situation of Sundaland during the Tertiary and Quaternary.