女大学生体育运动与身体自尊、社会性体格焦虑的关系

使用体育运动等级量表、社会性体格焦虑问卷及身体自尊量表对336名女大学生进行测量,以比较不同体育运动等级下女大学生社会性体格焦虑及身体自尊的特点,并探讨女大学生体育运动等级、社会性体格焦虑和身体自尊的关系。结果表明：（1）不同体育运动等级水平的女大学生的社会性体格焦虑和身体自尊间存在显著差异。（2）较高的体育运动量与女大学生较高的身体自尊水平、较低的社会性体格焦虑相关;较低的体育运动量与较低的身体自尊水平、较低高的社会性体格焦虑相关。     

Factors contributing to academic achievement: a Bayesian structure equation modelling study

In Iran, high school graduates enter university after taking a very difficult entrance exam called the Konkoor. Therefore, only the top-performing students are admitted by universities to continue their bachelor's education in statistics. Surprisingly, statistically, most of such students fall into the following categories: (1) do not succeed in their education despite their excellent performance on the Konkoor and in high school; (2) graduate with a grade point average (GPA) that is considerably lower than their high school GPA; (3) continue their master's education in majors other than statistics and (4) try to find jobs unrelated to statistics. This article employs the well-known and powerful statistical technique, the Bayesian structural equation modelling (SEM), to study the academic success of recent graduates who have studied statistics at Shahid Beheshti University in Iran. This research: (i) considered academic success as a latent variable, which was measured by GPA and other academic success (see below) of students in the target population; (ii) employed the Bayesian SEM, which works properly for small sample sizes and ordinal variables; (iii), which is taken from the literature, developed five main factors that affected academic success and (iv) considered several standard psychological tests and measured characteristics such as ‘self-esteem’ and ‘anxiety’. We then study the impact of such factors on the academic success of the target population. Six factors that positively impact student academic success were identified in the following order of relative impact (from greatest to least): ‘Teaching–Evaluation’, ‘Learner’, ‘Environment’, ‘Family’, ‘Curriculum’ and ‘Teaching Knowledge’. Particularly, influential variables within each factor have also been noted.     

英语B级成绩的影响因素研究

以英语B级考试117名大专学生为研究对象,采用描述统计、t检验、相关分析和回归分析,探讨高考英语成绩和学习者的情感因素对B级成绩的影响。结果表明：（1）学生在考试之前,外语自我效能感处于一个中等水平,英语考试焦虑和计算机使用焦虑水平较高;（2）B级考试及格学生和不及格学生的高考英语成绩和英语考试焦虑存在显著差异;（3）B级考试成绩和高考英语成绩、自我效能感显著正相关,与英语考试焦虑成显著负相关,与计算机使用焦虑的相关性不显著;（4）高考英语成绩和英语考试焦虑为B级考试成绩的显著预测变量。     

内蒙古地区主要推广玉米品种遗传多样性研究

用农艺性状与分子标记(SSR)相结合的方法分析了24个在内蒙地区选育的玉米品种遗传多样性.结果表明,用30对玉米SSR核心引物进行遗传多样性分析,共检测到234个等位基因变异,每对引物检测到5~15个多态性片段,平均为7.8个.每个位点SSR多态信息含量(PIC)变化为0.408~0.916,平均多态性为0.876.聚类分析(UPGMA)可将24个玉米品种分为5大类.品种间具有较高的遗传变异性.内蒙古地区主栽玉米品种有着较为稳定的遗传特性,基础遗传资源丰富.这对新品种选育、品种改良和亲本选配有着重要的参考意义.     

幼龄福建柏种源生长性状的遗传变异和种源选择

在福建南靖和三明试验点,对来自福建、湖南、江西、贵州、广东和浙江6省的11个福建柏种源进行种源试验。通过对5年生试验林的调查和观测分析发现,福建柏种内存在丰富的遗传变异,福建柏树高、胸径、地径、材积生长在种源间的差异达到显著或极显著的水平,这些性状具有中等以上的遗传力,其变异主要受遗传因素控制。福建柏种源问可能存在随机变异,种源生长的好坏与种源所在地的地理、气候因子间相关不密切。在变异分析的基础上,对参试种源进行选择,从南靖点种源试验林中选出江西上犹、福建龙岩和贵州黎平等3个优良种源、Nz001等14个优良个体,从三明点种源试验林中选出湖南道县和贵州黎平等2个优良种源、Sz001等14个优良个体。这些遗传材料,可用作无性繁殖的母株、种子园的建园材料或杂交亲本。     

社交焦虑高、低分者事后反复回想的信息加工差异

考察社交焦虑高分者和低分者在社交紧张事件后的事后反复回想过程中, 在一般和特殊这两个信息加工维度上是否存在差异。由于一般和特殊的事后反复回想的编码没有标准, 故设计研究一, 为研究二的编码工作做准备。研究一以8名在校大学生为被试, 进行半结构性访谈, 了解在校大学生在社交紧张事件之后的事后反复回想内容, 并对此进行分类, 形成开放式问卷。研究二以45名在校大学生为被试, 用开放性问卷收集被试在近期的一个社交紧张/焦虑事件后的想法, 根据研究一设定编码规则, 然后对这些想法进行编码, 考察高、低社交焦虑水平者的想法在一般和特殊的信息加工维度上是否存在差异。研究发现, 在校大学生在日常的社交紧张/焦虑事件后, 事后反复回想可以分为回忆当时的情境、反事实假设、猜测结果、分析原因、总结规律、制订计划等几类, 并得到两个主要结果: 1) 高社交焦虑者一般的事后反复回想占总想法的比例比低社交焦虑者的高, 差异边缘显著; 2) 一般的事后反复回想占总想法的比例与社交焦虑量表得分呈中等程度的正相关。     

Diastereoselective, large-scale synthesis of β-amino acids via asymmetric aza-Michael addition as α2δ ligands for the treatment of generalized anxiety disorder and insomnia

Scalable synthetic routes to β-amino acids 1 and 2 are presented. These two compounds, which bind to the α2δ subunit of calcium channels and have important medical applications, have been prepared on kilogram scale in our pilot plant through an improved synthesis that avoids the use of highly toxic reagents and hazardous chemistry present in the original Medicinal Chemistry route. The two chiral centers are introduced through asymmetric Michael and aza-Michael reactions with excellent diastereoselectivity.     

大学生体育选项课焦虑成因及应对策略

通过对大学体育选项课实施过程中所引起的大学生焦虑成因进行分析,提出旨在缓解、抑制大学生焦虑的一系列有效应对策略,把增强大学生心理健康作为深化大学体育选项课制度改革的重要内容。     

张爱萍将军人格潜质研究

张爱萍将军的人格潜质特征优异,集中表现为：超常的果敢性、非凡的聪慧性、突出的广适性、惊人的刚毅性、无比的执著性。张爱萍将军所具有的这些优异的人格潜质,不仅为其成长为伟大的无产阶级革命家、军事家奠定了坚实的思想基础和政治基础,对当代青年的成长也具有十分重要的启迪意义。