子宫内膜异位症导致不孕机理探讨

近年来的研究表明了EMT和不孕之间存在较强的相关性,但是两者之间的因果关系和发病机制目前仍存在争议.本文对子宫内膜异位症与不孕之间机理探讨是从分析和综合相结合的认识方法来达到掌握两者关系的本质及其规律性的目的.遵循这样科学的发展战略才能更有利于人类医学领域的繁荣发展.     

Bootstrap探索性因素分析方法及其应用

传统的探索性因素分析方法需要满足正态分布等前提假设,且无法提供研究结果可重复性的证据.而Bootstrap探索性因素分析方法不必满足正态分布的前提假设,利用已有的测试数据,以评估探索性因素分析的可靠性.Bootstrap探索性因素分析方法作为传统的探索性因素分析方法的有力补充,克服了其未提供研究结果可重复性的不足,为心理学研究者特别是量表编制者提升研究结果的社会应用价值及可靠性提供了统计方法学上的支持.     

品牌形象系统的因素结构

采用问卷法以446名大学生为被试,运用探索性因素分析探讨了不同产品类别（牙膏、运动鞋和随身听）的品牌形象的构成因素,然后以整体分配法确定了各因素的权重。结果表明:(1)品牌形象是由若干因素构成的有组织、有序的系统,这些因素分别属于功能成分和意义成分。(2)不同产品类别的品牌形象构成有共性,也有个性。(3)低外显产品的功能成分比高外显产品的功能成分重要。     

普教“升中”考试中测验等值的应用研究——以广东省佛山市“升中”考试为例

以广东省佛山市"升中"考试为例.分析和探讨如何选用合适的等值设计与方法来解决普教"升中"考试不同地区分数转换的问题.采用非随机组锚测验等值设计对三种经典测验等值方法进行比较.结果发现:Tuck-er线性等值方法最优,kvine线性等值方法次之,等百分位等值方法(频数估计)不适合此类等值.等值方差分析表明题型与等值方法具有交互作用,这说明不同的题型宜选用不同的等值方法来进行等值.     

不同认知作业年老化特点的比较研究

本工作应用自行设计的软件程序和微机人机对话方式,完成六项认知作业的年老化特点的比较研究,被试506人,46—75岁。研究结果表明:1)“心算”和“符号数字”两项作业完成速度随年老迅速减慢,但测验成绩随年老缓慢降低,速度变化是该两项作业年老化过程的主要特点;2)“数字鉴别”和“计数”两项作业完成速度随年老减慢较缓;3)“双位数字顺序回忆”和“无意义图形再认”两项作业测验成绩随年老下降迅速,但前者更为明显;4)速度和成绩两项指标的个体差异均随年老有增大趋向。     

熟练双语者负性情绪干扰下的认知优势效应:来自2-back的证据

熟练双语者在空间工作记忆中存在认知优势,但是在负性情绪干扰下熟练双语者在空间工作记忆中是否存在认知优势尚不清楚。空间工作记忆和负性情绪均以大脑右半球为优势脑区,加工效能理论认为空间工作记忆和负性情绪的加工使用同样的认知资源。研究采用情绪空间2-back任务,探究在负性情绪刺激干扰下的空间工作记忆任务中熟练双语者是否存在认知优势。结果表明,熟练双语者在该任务中表现出比非熟练双语者更高的正确率和更短的反应时。这一结果说明,尽管存在负性情绪刺激的干扰,相比非熟练双语者,熟练双语者在空间工作记忆中仍然表现出了认知优势。     

相对剥夺感与大学生社交焦虑的关系：一个有调节的中介模型

采用问卷法对湖北省674名大学生进行调查,探讨了相对剥夺感影响社交焦虑的路径,考察了核心自我评价的中介作用和自我关注的调节作用。结果发现：(1)相对剥夺感可以正向预测大学生社交焦虑;(2)核心自我评价在大学生相对剥夺感与社交焦虑之间起中介作用;(3)自我关注调节了核心自我评价中介效应的后半段路径,即随着自我关注程度提高,核心自我评价对社交焦虑的预测作用增强。     

Filial piety dilemma solutions in Chinese adult children: The role of contextual theme,filial piety beliefs,and generation

Although some studies have revealed that traditional filial piety belief is weakening, few have explored whether and how the role of the belief in social life has changed correspondingly. The present study used questionnaires to examine solutions to filial piety dilemmas and the roles of contextual theme, filial piety beliefs, and generation in a sample of 123 young and 92 middle‐aged Chinese adults. With respect to the solutions adopted to solve parent?child conflicts, preferences varied depending on the dilemma themes. Specifically, participants were more likely to select a self‐sacrifice (rather than an ego‐centered) solution for respect dilemmas than for caring dilemmas, and least likely to do so for obedience dilemmas. Participants were also likely to select a balancing (rather than an ego‐centered) solution for respect or caring dilemmas than for obedience dilemmas. In addition, the concordance between beliefs and solutions was exhibited in reciprocal, but not authoritarian, filial piety beliefs. Individuals with stronger reciprocal filial piety beliefs were more likely to select self‐sacrifice or balancing solutions than ego‐centered solutions whereas authoritarian filial piety showed no influence on solutions for either young or middle‐aged adults. Furthermore, the generation effect was not significant, and the solution selection did not differ between young and middle‐aged adults.     

Leadership and Organizational Citizenship Behavior: OCB-Specific Meanings as Mediators

Purpose  

This study seeks to examine how perceived organizational instrumentality (the extent to which employees believe that OCB contributes to the functionality and effectiveness of their work unit or organization) and perceived individual instrumentality (the extent to which employees believe that OCB is important to their own interests) relate to employee engagement in OCB and how these perceptions mediate the effects of leadership on OCB.     

Deposition-rate dependence of granular size distribution in Cu aggregate on liquid substrate studied by atomic force microscopy

In this article, we report an atomic force microscopy study on the microstructure and the deposition-rate dependence of granular size distribution in copper (Cu) ramified aggregates on a liquid substrate. This study shows that the ramified Cu aggregates are composed of Gaussian size distribution granules, which form immediately after the Cu atoms are deposited. The interesting phenomenon is that the mean diameter Φ_m of the granules exponentially decays and approaches a stable value Φ_c with an increase in the deposition rate f. The granular mean diameter Φ_m slightly changes with the time interval Δt during which the film is kept in the vacuum chamber, owing to the large diffusion coefficient of the Cu granules on the liquid substrates. The experimental behavior strongly depends on the properties of the liquid substrate.