Nest box entrance hole size can influence nest site selection and nest defence behaviour in Japanese tits

Animal Cognition - Birds have the ability to assess the risk of predation in their environment and adjust their antipredation strategies based on this risk information. However, whether nest site...     

偶像崇拜量表的修订及其理论模型的验证

对偶像崇拜量表进行修订获得较好的测量学指标,经探索性因素分析确定的量表条目为27个,得到五个维度分别命名为"娱乐社交"、"情感投射"、"完全认同"、"关系幻想"、"病理边缘",从低到高表示偶像崇拜的不同迷恋程度。经验证性因素分析,该结构具有良好的结构合理性和一致性,不同人口学背景被试共享该理论模型,模型的因素载荷一致性得到完全验证,题目截距一致性得到较大程度验证,可以用作测量青少年偶像崇拜有效工具。     

学科教学策略对高中生学习适应性的影响

采用自然教育实验法,探讨学科教学策略对学生学习适应性的影响。结果表明：(1)学科教学策略的运用,有效地提高了优秀生和普通生的学习适应性的整体水平;(2)学科教学策略对学生的学习态度、身心健康水平的提高具有积极作用,其中学习独立性、学习计划性、身心健康水平的提高最为明显;(3)学习适应性的提高有助于提高学生的学科学业成绩。     

Help yourself by helping others: The joint impact of group member organizational citizenship behaviors and group cohesiveness on group member objective task performance change

This paper examines how a group member's individual‐targeted citizenship behavior (OCBI) and organization‐targeted citizenship behavior (OCBO) interact with a salient group‐level contextual variable, group cohesiveness, to foster positive change for that group member, starting with job self‐efficacy change, and followed by objective task performance change. Over a span of 6 months, we engaged in multilevel, multisource, multistage data collection and surveyed 587 members in 83 work groups. Our results indicate that a group member's OCBI, in comparison with OCBO, is more positively related to his or her job self‐efficacy change. Group cohesiveness was found to attenuate the relationship between a group member's OCBI and job self‐efficacy change, and conversely, to accentuate the relationship between a group member's OCBO and job self‐efficacy change. Furthermore, a group member's job self‐efficacy change mediated the interactive effects of the group member's OCBI and group cohesiveness (as well as the group member's OCBO and group cohesiveness) on his or her objective task performance change.     

父母教养方式对子女学业成就影响的研究

本研究采用问卷法,以475名初一和初二学生为调查对象．探讨了父母的教养方式通过子女的成就目标定向和学业自我概念对其学业成就所产生的影响。结果表明．父母教养方式通过学生的这两个中介变量．以不同的途径影响着学生的学业成就水平。     

Burger or yogurt? Indulgent consumption in impression management contexts

We conducted three studies to investigate indulgent choice in settings with and without impression management by public–private manipulation with evaluation. Study 1 showed that the participants were less indulgent under public scrutiny due to the employment of impression management. Study 2 focused on the impression management context to test the moderate effect of self‐consciousness in two impression managed contexts. Study 3 focused on context without impression management to test the moderate effects of self‐awareness on choices. We found that depending on differences in primed personality, individuals tended to make choices other than those they favoured privately when anticipating that others might form impressions of them based on the decisions made. The findings of all three studies support our basic prediction that people are less indulgent under impression management and suggest that people tend to manage their impression by eating healthier (less indulgently) in public.     

道安佛学思想及其弥勒净土信仰

道安作为中土早期佛教的一代宗师,于佛教戒定慧三学均有卓越之发明,思想宏富深厚.文章分疏、论析了道安有关戒定慧三学的理趣要旨,阐释了其由早期禅观向般若学转变的理论进路及其弥勒净土信仰之衷曲,力图突显其佛学思想及信仰之于早期中土佛理建设的胜义.     

高血压专业管理的思考和策略

高血压专业管理在不断的循证研究和临床实践中发展,有效的专业管理是预防心脑血管并发症发生、改善高血压转归的迫切需要.最大限度降低总体心血管风险是降压治疗的目标,也是高血压专业管理的方向.     

Stress induces glucocorticoid-mediated apoptosis of rat Leydig cells in vivo

Stress can disrupt endocrine signalling in the male reproductive axis through high concentrations of glucocorticoids, the hallmark of stress. Our previous work revealed that a stress level of exogenous glucocorticoids could induce apoptosis of rat Leydig cells, which are the primary source of testosterone. The aim of this study was to investigate whether stress can induce apoptosis in rat Leydig cells in vivo and, if so, whether the process is the result of a direct effect of glucocorticoids. In a chronically stressed rat model, serum corticosterone concentration was increased significantly whereas serum testosterone was decreased. The frequency of apoptotic Leydig cells in stressed rats was also increased. Adrenalectomised rats subjected to chronic stress showed an elevated serum testosterone, while the apoptotic frequency of Leydig cells was not increased. It was established that glucocorticoid-induced Leydig cell apoptosis is mediated by glucocorticoid receptors (GRs), which translocate from cytoplasm to nucleus. Adenovirus microRNA-induced downregulation of GR expression in vitro alleviated the corticosterone-induced increase in apoptosis of Leydig cells. These results indicate that the stress-induced increase in corticosterone secretion resulted in apoptosis in rat Leydig cells in vivo, and thereby decreased testosterone synthesis.