从作者性别批评视角看简·爱和吕蓓卡的人物形象差异

简·爱与《名利场》中的女主角吕蓓卡是英国维多利亚时期文学中两个具有同样独立反叛意识但被作者赋予不同命运结局的女人。从作者的性别视角去解读这两个传统女性形象的本质差异,能看出男女作者对女性反抗压迫行为的不同理解和价值判断,并能更好地发掘出被别的批评视角忽略或误读的文本内涵。     

三种拟信息素对梨小食心虫及桃蛀螟成虫的田间引诱活性研究

为探索拟信息素在梨小食心虫及桃蛀螟两种蛀果害虫性诱剂防治中的应用,初步考察了E8-12:OH、E8-12:Ac及E8-12:Ald三种合成化合物对梨小食心虫和桃蛀螟成虫的田间引诱活性。结果表明,合成化合物单剂诱芯对两种目标成虫均无明显引诱活性,诱芯质量比为m(E8-12:OH)∶m(E8-12:Ac)=1∶4及m(E8-12:Ac)∶m(E8-12:Ald)=1∶1,且每诱芯混剂含量为0.5 mg的二元混剂诱芯对梨小食心虫有一定的引诱活性。     

化为蝴蝶去裙边 一嗅余香死亦甜——解析《聊斋志异》中关于足的性文化符号

《聊斋志异》的足与绣鞋反映了民族特定的文化心理,是意义丰富的性文化符号,足是女子身体最隐秘和最神圣的部位,是男-k-~N调情的性感地带。绣鞋暗示着性,有时候象征着女子的贞洁,是男女之间常用的定情信物。《聊斋志异》的作者蒲松龄立足于社会现实,在作品中利用这两种性文化符号推动故事情节,改变人物命运,刻画人物形象,展示人物性格。     

价值澄清理论对我国大学生性道德教育的启示

作为西方最有影响的道德教育理论之一的价值澄清理论,由于强调道德教育与现实生活紧密结合、学生主体地位得到落实、实施的过程和方法切实可行,因而具有重要的现实价值,同时又因提倡"价值中立"而让自己陷入困境。这就启示我们在当代大学生性道德教育实践中,需要更新观念,以人为本,注重大学生主体能动性的发挥;贴近生活,价值澄清,鼓励大学生在性问题上的合理选择;关注现实,价值引导,重视大学生性道德核心价值观的建构。     

安徽省出生人口性别比失衡的现状及对策——基于第六次全国人口普查数据

自二十世纪八十年代中国政府实行计划生育政策后,安徽省出生人口性别比就开始出现失衡现象,这是多种因素综合产生的结果。它造成了人口结构的不合理,同时还严重影响婚姻市场的配对、人口再生产以及家庭和社会的和谐。必须采取加快经济发展步伐、建立健全社会保障体系、运用社会公共政策等措施来影响人们生育观念的转变,弱化人们的性别偏好,使出生性别比失衡从根本上得到解决。     

太行山猕猴跖骨性差

以39例成年太行山猕猴跖骨为标本(27雌,12雄),测量每根跖骨7个变量,采用SPSS 20.0进行数据分析,用7个跖骨变量建立逐步判别函数.选择性差最大的变量直接进行判别分析.结果表明,大部分变量性差显著(P<0.01),侧别差异很小.逐步判别分析选择出来的最好变量是跖骨长度.雄性判别率为78.6%⁹2.9%,雌性判别率为79.3%92.9%,雌性判别率为79.3%⁹3.1%,平均判别率为79.1%93.1%,平均判别率为79.1%⁹3.0%.交互检验比回代检验判别率略微低一些.结果显示用跖骨长度变量可以很好地鉴定性别.     

The green June beetle (Cotinis nitida) (Coleoptera: Scarabaeidae): local variation in the beetle’s major avian predators and in the competition for mates

The green June beetle (Cotinis nitida) was observed in northern Virginia for a second and third flight season. The study yielded some results that were consistent with earlier findings, namely that mate-locating beetles were vulnerable to attack by avian predators and matings occurred primarily early in the flight season. Novel findings included the following: (1) blue jays (Cyanocitta cristata) were the major predators, not common grackles (Quiscalus quiscala), (2) some jays appeared to selectively prey on female beetles, (3) competition for mates among male beetles could be so intense that some males attempted to copulate with already mated (unreceptive) females, and (4) the sex ratio of the beetle population feeding on wild blackberries remained near equality late in the flight season despite the fact that the sex ratio of the population of beetles at the emergence site became highly female-biased over time.     

Population biology of Sphaeroma serratum Fabricius (Isopoda,Flabellifera) at the Port of Mar del Plata,Argentina

Variations in size distribution, sex ratio, fecundity and morph frequencies in a population of Sphaeroma serratum were studied year-round. Changes in size distribution are most marked during the breeding season. Growth is arrested during the winter months. Young are produced throughout the summer; these overwinter, reproduce and then die. Differences in size of mature males suggest an effect of the timing of birth on life-span. Females are able to produce two broods. Offspring number is positively correlated with female size. Brood pouch mortality is estimated at 39%. Marked changes in sex ratio within the breeding season are thought to be artifacts due to sexual differences in behaviour. Comparison of reproductive traits of this, and other, populations shows a latitudinal pattern related to the duration of the warm season. Analysis of morph frequencies revealed similarities with European populations so far studied.     

太行山猕猴掌骨性差的逻辑回归分析

对猕猴掌骨变量的性差进行逻辑回归分析,用ROC分析来比较掌骨变量、左右侧掌骨和5根掌骨的性差大小.成年掌骨标本44例(14雄,30雌).数据分析采用SPSS20.0软件.选择掌骨的7个变量.采用逐步逻辑回归分析选择最佳变量.结果表明:掌骨长度是最好的性差指示变量,然后是掌骨头和掌骨底变量,最小的是掌骨骨干宽和高.总体性别正确判别率是71.4%~100.0%.ROC分析显示左右侧掌骨性差差异很小,ROC曲线下面积(AUC)分别是0.969和0.978.逻辑回归结果是MC2、MC4和MC5判别率较高(90.0%~94.9%);MC1和MC3判别率较低(85.8%~87.5%).结果提示:猕猴掌骨性差显著.掌骨性差模式可能与人类不同.掌骨变量的性差特征反映了遗传与后天行为因素的交互作用.     

Taxonomic notes on the Asian frogs of the tribe Paini (Ranidae,Dicroglossinae): 1. Morphology and synonymy of Chaparana aenea (Smith, 1922), with proposal of a new statistical method for testing homogeneity of small samples

The species from northern Vietnam described as Rana fansipani Bourret, is shown to be a synonym of the species from northern Thailand described as Rana aenea Smith, . The male secondary sex characters of this species are described in detail for the first time. Combined with a few other characters, they allow this species to be distinguished from the closely related Rana unculuanus Liu, Hu and Yang, 1960 from southern China. Both species should be placed in a subgenus Chaparana (Chaparana), a member of the tribe Paini of the subfamily Dicroglossinae of the Ranidae. In this study, we propose a new statistical method for testing homogeneity of small samples: this consists of considering the values obtained for each specimen and for each regression factor score as morphometric characteristics of this specimen within the frame of this analysis; these values, or some of them, can be used to compare subgroups of specimens by non‐parametric tests such as the Mann–Whitney U test.