男权视角下的单一女性观——《因为女人》的悲剧宿命观探讨

阎真的小说《因为女人》描写了男权统治的商品社会中,当代中国女性无法逃脱的悲剧命运。该描写具有一定的现实性,也展现出男性对女性悲剧宿命的善意悲悯,然而这种女性宿命观是建立在"爱情唯一论"基础上的,它从另一个侧面体现出作者失之简单化的男权视角。而人们在思考女性生存境遇时,应该采取的是一种更平和、更灵活、更有包容力的现代多元女性观。     

The genetic and molecular basis of cytoplasmic male sterility and fertility restoration in rice

Cytoplasmic male sterility （CMS） is a maternally inherited characteristic found in many （〉150） plant species. CMS/restoration systems are useful tools for hybrid seed production, and are ideal models for study of the interactions between nuclear and mitochondrial genomes. CMS/restoration systems in rice have been widely used for hybrid seed production, greatly contributing to the food supply. This article reviews the progress of the studies on the genetic and molecular basis of cytoplasmic male sterility and fertility restoration in rice.     

Mating behaviour and sexual selection in the African ball-rolling scarab Khepher platynotus (Bates) (Coleoptera: Scarabaeidae)

Mating behaviour of the ball-rolling dung beetle Kheper platynotus (Bates), adults of which are active in rainy seasons, was studied in southeastern Kenya. Male mating behaviour changed with the progression of the rainy season. In the early season when females made food balls, males attempted forced copulation with wandering and food-ball-making females on dung mounds. As the season progressed, females made brood balls, and males attempted to pair off with such females, as well as attempting forced copulation with wandering and food-ball-making females. A male who paired off with a brood-ball-making female cooperated with the female to make the ball. The male usually copulated after burying the ball (pre-copulatory mate guarding), but sometimes copulated during ball-making. In the latter case the male usually showed post-copulatory mate guarding until ball burial, but sometimes left soon after copulation. In the late season, when available females decreased because of maternal care in the underground nests, males started to make food balls to secure food resources for survival until the next rainy season. Male mate guarding involving ball-making, -rolling and -burying seemed to function to raise paternity confidence, but such assistance seemed to be less beneficial to females. Fights frequently occurred between guarding and intruding males on brood balls. Both residency and relative body sizes of fighters were important asymmetries influencing contest outcome. This seemed to result in not active but passive mate choice by brood-ball-making females.     

哒嗪类小麦化学杂交剂的合成及生物活性研究

建立了一条合成哒嗪类小麦化学杂交剂1-对氯苯基-1,4-二氢-4-氧代-6-甲基哒嗪-5-羧酸的合成路线。以对氯苯胺为主要原料,经过四步工艺合成杀雄嗪酸,合成工艺成本低,反应条件温和,适合工业化生产。对哒嗪类化学杂交剂的生物活性进行了测试。通过对工艺的优化,并对化合物的分离和纯化条件进行了摸索和改进,取得了较好的实验结果。1-对氯苯基-1,4-二氢-4-氧代-6-甲基哒嗪-5-羧酸总收率(以对氯苯胺计)可达到70%。     

毛白杨雌雄株过氧化物酶同工酶的等电聚胶电泳分析

用聚丙烯酰胺等电聚胶电泳分离毛白杨过氧化物酶同工酶,可以克服聚丙烯酰胺凝胶垂直平板电泳的分辨率低、酶易扩散、电泳时间长等缺点。雌株可分离到10～12条电泳区带,雄株仅得到4～5条。电泳时间由原来的7h缩短至4h。另外,雌雄株间的可溶性蛋白质含量、过氧化物酶活性及色谱扫描曲线都有明显的差异。     

男性的放逐与女性的迷失--论张爱玲小说中的女性意识

张爱玲的女性意识可以说是自然流露于小说文本之中.她通过塑造肢体残废和精神疾患两种类型的男性以及压抑焦虑、缄默无助的女性来达到男性的放逐与女性的迷失的文学目的.     

浅析陈染小说中的父亲形象

陈染是女性主义写作的代表作家之一，对父亲形象的颠覆性描写和既恨又爱的感情显示了其作品独特的审美意蕴，它从一个侧面反映了女性在面对男权社会和男人时极端矛盾的心态。     

马铃薯育性和非育性、倍数性和杂种优势研究概况

世界各国近１０年的马铃薯育性和非育性、二倍体和四倍体、杂种优势现象研究取得实质性进展，本文对这些研究进行评述。     

Post-weaning differential housing and testosterone secretion in male mice

Summary The effect of different densities of animals per cage on basal testosterone secretion and its response to some stimuli was studied in prepuberal male mice. Mice housed with 110 or 55 cm² of floor space per animal showed the same basal serum testosterone and hCG-induced testosterone release. Likewise, in a second experiment, the same basal serum testosterone and a similar response to acute noise stress were found in mice housed at 132, 66 or 22 cm² of floor space per animal. These results suggest that post-weaning crowding did not affect Leydig cell function in male mice.