ACE基因多态性与2型糖尿病的关联研究

目的探讨血管紧张素转化酶(ACE)基因I/D多态性在湖北汉族2型糖尿病发生发展中的作用。方法采用同胞对和随机病例-对照两种实验设计。征集湖北地区汉族49个同胞对及163例随机病例-对照,测定身高、体重、血压、空腹血糖等生理生化指标,应用聚合酶链反应(PCR)方法测定基因型。结果两种实验设计中对照组与病例组的基因型和基因频率均无显著差异。结论ACE基因在湖北汉族人群2型糖尿病的发生发展中可能不起主要作用。     

当代西方独立左翼的社会主义观述评

西方独立左翼及其社会主义观是在社会主义和资本主义两种制度的变化和斗争中兴起和发展的,也是对国际形势变化的回应与反思的结果。西方独立左翼的社会主义观包含着对社会主义本质和价值观的分析、对社会主义民主的重新认识、对未来社会主义经济制度的设想、对未来社会主义主体的界定以及对未来社会特征的预见。尽管见解不一,却为科学社会主义理论和实践提供了有价值的探索和借鉴。     

乡村的感恩与告别——城市“右派”作家的乡村书写

政治身份被否定的城市“右派”作家对乡村的感恩与告别表现出革命知识分子在认同乡村文化无政治束缚的内涵与自我价值实现之间的矛盾，认同与放弃之中深深透示出他们对自己的阶级身份与文化身份定位的努力。     

Population dynamics of the whitebacked planthopper,Sogatella furcifera (Hemiptera: Delphacidae) with special reference to the relationship between its population growth and the growth stage of rice plants

A population census was conducted to describe the effects of the growth stage of rice on the population dynamics ofS. furcifera, in particular, on immigration, seasonal abundance, population growth rate, and wing-form expression. The number of immigrants was highest on rice plants 17 to 30 days after transplanting (DAT), which suggested that immigrants prefer to settle or remain more on rice plants at the tillering stage (approximately 20–30 DAT). Population growth rate from immigration to the 1st generation decreased with an increase in rice plant age. In contrast, population growth rate from the 1st to 2nd generation was not influenced by rice plant age and was negatively density-dependent. The percentage of macropters (flyers) was positively related to the growth stage of rice when rice was in the vegetative or early part of the reproductive stage, and reached 100% at about 10 days before heading (booting stage). Threafter, most adult females molted into macropters regardless of population density. The roles of host plant age and crowding effect on the population dynamics ofS. furcifera are discussed.     

Reproduction and egg diapause of the oriental chinch bug,Cavelerius saccharivorus okajima (Heteroptera: Lygaeidae), in the subtropical winter season in relation to its wing polymorphism

Summary Reproduction and egg diapause of the oriental chinch bug,Cavelerius saccharivorus, in the subtropical winter season were investigated in relation to its wing polymorphism. Macropterous females collected from the southern part of Okinawa Is. in the autumn season delayed their oviposition and were less fecund early in the adult life period, but survived much longer than brachypterous females collected from the same locality. The total fecundity was not significantly different between wing morphs. The diapause of eggs laid by brachypters tended to be terminated more easily at a high temperature than that of eggs laid by macropters. This indicated that the eggs laid by macropters were more intense in their diapause than those laid by brachypters. However, irrespective of the parental wing form, diapause showed considerable variation in its intensity within and between clutches.     

Competitive habitat utilization in the damselfly,Mnais nawai (Zygoptera: Calopterygidae) coexisting with a related species,Mnais pruinosa

Reproductive behaviors related to habitat utilization were studied in males of the damsefly,Mnais nawai, which has two male forms, territorial orange-winged males (nawai) and non-territorial pale-orange-winged males (sahoi), at the upper part of a mountain stream where they partiallycoexist with a related species,Mnais pruinosa, which also has two male forms, territorial orange-winged males (esakii) and non-territorial hyaline-winged males (strigata). These two species showed parapatric distribution; the lower part of the stream was occupied byM. nawai, and the upper part byM. pruinosa. In the present study, cross-matings occurred between bothMnais species, although normal intraspecific matings occurred more frequently than cross-matings. Territorial males of both species copulated with conspecific females that entered their territory and guarded the ovipositing females, probably to avoid sperm displacement resulting from subsequent copulations. Severe competition for oviposition sites by territorial males even occurred between the two species. On the other hand, non-territorial males of both species have alternative mating strategies (including several tactics such as sneaking, takeover and interception). The possible benefits from conflict among territorial males of both species is discussed.     

浙江作家与左翼文艺运动

本文是依据作者主编的<浙江20世纪文设作出重大建树的浙江作家在30年代左翼文艺运动中的卓越贡献,探讨其建构文艺新格局、引领文艺主潮及其创作提升左翼文艺品位的历史经验.     

从身体到精神的解放——解析博亚尔的戏剧诗学

著名的巴西左翼戏剧理论家奥古斯多·博亚尔创立的“被压迫者诗学”继承了自皮斯卡托、布莱希特以来西方左翼戏剧理论传统,在意识形态上接受了西方“新左派”的影响,在戏剧美学上融合了后现代理念。它是一种建立在左翼一贯的反叛精神与革命性基础之上的行动的、解放的诗学;追求被压迫者在身体和精神上的全面解放;强烈的左翼色彩,使它具备了独特的戏剧美学价值和意识形态意义。