Gender differences in willingness to compete: The role of public observability

A recent literature emphasizes that gender differences in the labor market may in part be driven by a gender gap in willingness to compete. However, whereas experiments in this literature typically investigate willingness to compete in private environments, real world competitions often have a more public nature, which introduces potential social image concerns. If such image concerns are important, and men and women differ in the degree to which they want to be seen as competitive, making tournament entry decisions publicly observable may further exacerbate the gender gap. We test this prediction using a laboratory experiment (N = 784) that varies the degree to which the decision to compete, and its outcome, is publicly observable. We find that public observability does not alter the magnitude of the gender gap in willingness to compete in an economically or statistically significant way.     

川东北地区须家河组二段储层差异性分析

随着勘探程度的深入，为了扩大四川盆地天然气勘探领域、寻找新的勘探接替区，四川盆地的勘探区域由盆内逐渐向盆缘延伸。在这种背景下，川东北地区须家河组二段相继取得新的勘探成果，但在勘探开发过程中逐渐暴露了诸如区块之间气井产能差异大，储层的碎屑组分、结构及厚度、物性、孔隙结构差异明显等问题，制约了勘探开发的步伐。针对上述问题，根据岩芯观察描述、分析化验资料及测井解释成果，从沉积、成岩方面入手，对比剖析了川东北龙岗和营山地区须二段储层特征的差异性及其成因，认为远离物源区和高能水体的反复淘洗是造成储层差异性的首要因素，强烈的压实作用和多期石英加大对储层差异性起关键作用，自生绿泥石衬边胶结和长石选择性溶蚀最终决定了储层差异性。从而解释了气藏勘探开发中遇到的诸多问题，对有效指导该区的下一步勘探开发工作具有重要意义。     

孤独个体与向死而生——多元文化社会中《凡人》的身份认同

美国犹太裔作家菲利普·罗斯的《凡人》讲述了一个关于失去与孤独、疾病与死亡的故事。主人公作为一个犹太裔美国人,因其身份的特殊性与美国主流文化格格不入,显得格外孤独与痛苦,这种孤独个体的特性也贯穿了其一生。与此同时,在他的一生中无时无刻不在与疾病和死亡作斗争,体现了向死而生的特点,即在绝望中蕴含着希望。在美国多元文化社会中,主人公追寻的身份认同正是当代美国人普遍的生存状况,表现了普遍的生存困境。     

Sex Related Factors in the Perception of Threatening Facial Expressions

This study replicated and extended previously reported sex differences involving both viewer and target in the recognition of threatening facial expressions. Based on the assumption that the evolved cognitive mechanisms mediating anger recognition would have been designed by natural selection to operate quickly in the interests of survival, brief tachistoscopic presentation of stimulus photographs was used. Additionally, in contrast to prior published studies, the statistical methods of signal detection research were used to control for the confounding effects of non-random guessing. The main hypothesis, that anger posed by males would be more accurately perceived than anger posed by females, was supported. A secondary hypothesis, that female-posed anger would be more accurately perceived by women than by men, received partial support. Testosterone levels, measured inferentially in terms of diurnal cycles, failed to show the hypothesized positive relationship to accuracy of anger perception.     

两大法系关于环境犯罪立法之比较

两大法系关于环境犯罪都有不少立法 ,但存在一定差异。在环境犯罪的罪过形式上 ,英美法系认为环境犯罪的认定需有故意和过失 ;而大陆法系则采用罪过原则认定环境犯罪。在犯罪行为上 ,作为犯罪是两大法系立法的基本情形 ,不作为犯罪是两大法系立法的例外情形。在刑罚执行上 ,两大法系对刑罚方法的运用各有特点     

外语教学要重视文化因素

不同的民族有着不同的社会文化背景。学习一种外语必须了解这种语言所承载的文化。本文从语言与文化的关系入手 ,分析了中国与英语国家文化的差异。着重强调外语教学必须重视文化因素 ,加强文化的导入。     

单位词用法探析

以单位词为中心词的名词词组的深层结构决定单位词的语法特征和语义特征。该深层结构多半可以通过单位词的转换功能映现为主动句或被动句的表层结构。在表层结构中,主语名词除去语法形位后的最后一个音节和谓语动词的第一个音段的组合在语音上是可接纳的。     

Robustness of a Class of Partial Diallel Cross Designs to the Unavailability of a Complete Block of Observations

Complete and partial diallel cross designs are examined as to their construction and robustness against the loss of a block of observations. A simple generalized inverse is found for the information matrix of the line effects, which allows evaluation of expressions for the variances of the line-effect differences with and without the missing block. A-efficiencies, based on average variances of the elementary contrasts of the line-effects, suggest that these designs are fairly robust. The loss of efficiency is generally less than 10%, but it is shown that specific comparisons might suffer a loss of efficiency of as much as 40%.     

明星个人品牌开发的相关问题研究

文章从明星个人品牌含义展开,提出在明星个人品牌开发中的几个误区及相关解决方案,最后把品牌开发中的“5R”模型引入明星个人品牌开发心理评价体系研究中,从而成功解决了明星个人品牌开发中的心理评价体系问题。     

Children's gender- and age-based categorization in similarity and induction tasks

The present studies examined children's and adults' preferences for gender- or age-based categorization using similarity and inductive inference tasks. Four-year-olds, 6-year-olds, and adults looked at pictures of people and decided which of two was more like a target (similarity condition) or which shared a novel age- or gender-related property with the target (inference condition). Age or gender-based matches were possible. The results are consistent with previous findings that gender-based classification decreases with age. However, they also demonstrate that children use gender more for judging similarity than for making inferences about novel properties. Distinct patterns emerge from the two tasks: 6-year-olds and adults in both conditions categorize more by age than gender; 4-year-olds categorize by gender more than age in the similarity task, but by age more in the induction task. Only adults differentiated by property in the inference condition. These findings suggest that the salience of gender categories cannot entirely be attributed to their inductive potential. Gender has a salience beyond what would be predicted by its power for directing novel generalizations.