艺术体操运动员的赛前焦虑及自我控制

赛前心理焦虑是运动员最常见的一种情绪体检。本文从运动员赛前产生焦虑的因素入手,结合作者多年从事艺术体操训练心得,提出了一些运动训练中对心理焦虑的自我调控方法,旨在为同行在今后的训练和比赛中提供参考。     

数量性状基因座(QTL)定位的研究进展

对数量性状基因座 (QTL)的几种主要定位方法的统计学原理进行了综述 ,总结了每种方法的优缺点及其发展动态 ,特别是对新发展的多区间作图和多性状作图进行了较详细的介绍 ,并对目前存在的问题和今后的发展进行了讨论     

Comparison of potentials between genotype-based selection and genotypic value-based selection of quantitative traits

According to the difference of selection criteria, methods of marker-assisted selection (MAS) of quantitative traits can be divided into genotype-based selection (GS) and genotypic value-based selection (GVS). By means of computer simulation, potentials of the two methods were compared. Results showed that the two methods had similar basic laws and their efficiencies were not significantly different except that GS behaved better in the case where the number of QTLs was large and QTL effects were equal. From the application point of view, combination of GS and GVS should be the development direction of MAS research in the future.     

大学生考试焦虑与考试成绩关系的初步探讨

通过了解大学生考试焦虑的特点及规律，探讨大学生考试焦虑与考试成绩的关系。采用考试焦虑测量表进行调查。结果显示，考试焦虑在不同性别、不同专业的大学生之间无显著差异，而与人格密切相关，考试焦虑与某些课程的成绩亦有一定关系(p＜0．05)。从而认为轻度考试焦虑对大学生考试成绩有着积极的影响作用。     

构建数量性状基因图的双侧标记基因型均值回归法

提出一种构建数量性状基因（ＱＴＬ）图的双侧标记基因型均值回归法,该方法利用当构体上某一区间的双侧标记基因型的数量性状均值为依变数,以该区间内任一一存在ＱＴＬ的加性效应和显性效应的系数为自变数进行二元回归分析,估计出ＱＴＬ的加性和显性效应,并测验该点是否存在ＱＴＬ,ＱＴＬ的最可能位置则根据测验统计数取最大值的点而确定;同时在某一标记区间测验时,利用多元线性回归方法将该工镜外可能存在的ＱＴＬ进行统计控     

自信心团体辅导对改善硕士生焦虑症状的实验研究

目前一些研究者采用团体心理辅导活动的疗法对焦虑的某种具体症状进行了干预研究,本研究采用实验设计,运用提高自信心的团体心理辅导对不同程度的焦虑症状和不同形式的焦虑症状的硕士生进行了干预研究,取得了显著的效果。     

高职院校英语学习者听力焦虑状况调查

采用问卷方式调查了高职院校英语学习者听力焦虑状况,结果表明:高职院校英语学习者听英语时有中度焦虑感;英语听力焦虑与外语课堂焦虑相关,但两者又彼此独立,英语听力焦虑具有听力技能的特点;英语听力焦虑与听力成绩具有显著负相关,但低度焦虑能提高听力水平高的学生的理解程度。     

七种番茄种质的性状观察

着重对 7种番茄种质的重要经济生物学性状进行了观察记载与评价 .这些性状包括番茄直立性、茎面光滑度、果实形状、果肉颜色、果皮颜色等 13个质量性状以及物候期、果实重量、可溶性固形物含量、含酸量和产量等性状 ,为进一步利用这些宝贵的种质资源提供了理论基础     

民办高校大学生就业焦虑研究——基于社会支持视角

采用"就业焦虑量表"、"就业焦虑问卷"和"社会支持评定量表"随机调研郑州科技学院大三、大四720名学生,发现被试大学生普遍存在就业焦虑,且不同个体差异显著。因此,关注大学生就业心理,降低就业焦虑程度、促进顺利就业,不仅促进学校的可持续发展,还将间接影响地方经济发展和社会秩序稳定。通过本研究丰富大学生就业问题的研究,且为高校制定有关就业的措施提供依据。     

Plasma phospholipid profiling of a mouse model of anxiety disorder by hydrophilic interaction liquid chromatography coupled to high‐resolution mass spectrometry

Glycerophospholipids (PLs), as amphipathic small molecules and the main constituents of biological membranes, play an important role in several cellular processes, even though their accurate identification from complex biological samples remains a challenge. In this paper, we report a fast and comprehensive HILIC‐ESI‐MS method for the analysis of glycerophospholipid classes using high‐resolution mass spectrometry in negative mode. The final method enabled the quantitative analysis of 130 endogenous PL species in mouse plasma. The application of the method developed was to find differences of plasma PL composition in a mouse model of anxiety disorder. In the case of four PL classes and 35 PL species, significant differences were observed comparing low anxiety‐related behavior with high anxiety‐related behavior groups. The most characteristic trend was up‐regulation in both the PL classes and PL species, and decreases were only detected in two phosphatidylcholines among 35 species in mice having elevated anxiety.