纵纹线虫属一新种（圆形目：绕体科）

在雅安高山姬鼠、黑线姬鼠、大足鼠和黄毛鼠的小肠内检获线虫２３条（雄虫７条，雌虫１６条）。经鉴定本种与爱氏纵纹线虫和舒氏纵纹线虫近似但有明显区别，定名为雅安纵纹线虫，新种（Ｌｏｎｇｉｓｔｒｉａｔａｙａａｎｅｎｓｉｓｓｐ．ｎｏｖ）。

双冠属线虫一新种(圆形目:盅口科)

本文记述从中卫县马属动物大肠中检获的双冠属线虫一新种,命名为中卫双冠线虫(Cylicodontophorus zhongweiensis sp.nov.),对新种的形态特征作了详细描述,并与近似种麦氏双冠线虫C.mettami进行了对比。

食道口线虫与食道口线虫病的研究进展

食道口线虫病（Oesophagostomiasis）是由属于圆形目（Strongyloidea）的食道口属（Oesophagostomum）的多种线虫寄生于动物肠道所引起,因有些种的幼虫在肠壁内形成结节状病变,故有＂结节虫＂之称。食道口线虫通常只在反刍动物、猪和猴子中发现,但也有感染人的报道,

莫圆属线虫中国新记录种的记述

为了确定采自广东省龙门县的大蹄蝠(Hipposideros armiger)和广东省广州市的东亚伏翼(Pipistrellus abramus)消化道线虫的分类学地位,使用数码显微镜对线虫进行形态学观察并描述。该线虫的形态特征为细小乳白色线虫,具头泡。体表具细小横纹,有两个侧翼。腹面和背面各有3条从头泡一直延伸的尾端的纵脊。雄虫交合伞由2个大的侧叶和1个小的背叶组成,交合伞肋的排列方式为3-2型。背肋的各分叉明显,分支细长。交合刺细长,末端分为两支。引带近端呈不规则斧头状,远端类似纺锤的一端。雌虫尾端有3个相同且粗壮的瘤状突起和1根细长刺。根据其形态学特征确定该线虫为莫圆属中国新记录种——等刺莫圆线虫(Molinostrongylus spasskii Andrejko,Pinchuk&Skvorzov,1968)。

Shape Optimization and Assessment of Wind Induced Stresses in Domes

Domes are popularly used for column free areas. They are employed as covers to reservoirs and treatment units and also as containment in nuclear reactors. Inverted domes are popular as foundations. Structures are built with an intended end use for a specified utility period. The functional requirement is to serve the purpose and the structural requirement constitutes stability, strength, safety, serviceability and durability. Satisfaction of these requirements at affordable costs is the goal of structural optimization. This paper demonstrates the need and scope for optimization of domes by formulating and solving the problem by use of calculus （volume of material is the objective function being minimized using first principles of calculus）. A simple but elegant method is suggested for determination of wind stresses by statics which compares very well with that obtained by rigorous method.