3-6岁幼儿在分类实验中概括能力的发展

本研究通过设计不同性质的分类实验,探讨3-6岁幼儿抽象概括能力的发展。我们根据年龄将幼儿分为四个组,每组80人,共320人。通过实验获得以下几点。①幼儿在各种不同性质的分类实验中可表现为四级不同的水平,如从根据表面的个别特征进行分类发展到根据内部的本质特征进行分类,从一维角度的分类发展到从两维角度来分类等。⑦达到各个水平的年龄不是截然划分的,而是互相交织的,随着年龄的增加,低级水平的人数不断减少,高级水平的人数不断增加。所以年龄阶段之间既有质的变化,又有量的变化。③对于不同性质的分类材料,各年龄所达到的概括水平也不同,分类材料的难度越大,概括水平越低。④儿童概括水平的高低受教育条件的影响。     

治疗感染性骨不连伴大段骨缺损的探讨与思考

感染性骨不连伴大段骨缺损是目前临床骨科较为常见、多发、治疗极为棘手的病种之一,治疗方法多种多样,但疗效却不理想,且缺乏统一的诊治与疗效判断标准,总结、分析几种临床上主要治疗方法的利弊,为该病探寻一条微创、安全、并发症少及疗效确切的可靠治疗方法.随着对Ilizarov技术的基础与临床研究的不断深入,该技术在治疗传统方法难以治愈的疾病如四肢关节严重畸形、感染性骨不连或伴有骨缺损、皮肤软组织缺损等方面显示出自身的优势,为治疗疑难骨科疾病开辟了一条新的有效途径.     

妊娠晚期亚临床甲状腺功能减退症对母婴合并症的影响

本研究旨在观察妊娠晚期亚临床甲状腺功能减退症对母婴合并症的影响。最终选择2010年1月～2010年11月期间共325例妊娠晚期孕妇分为病例组（A组,n＝65）和正常对照组（B组,n＝260）,观察两组之间母婴合并症的变化。结果显示,两组之间在年龄、住院日、血压、体质量指数（BM I）、心率、分娩时孕周、血糖以及血脂方面差异均无统计学意义（P＞0．05）。但与B组相比较,A组发生母亲合并症及胎儿合并症的发生率明显增加,差异有统计学意义（P＜0．05）。此研究提示妊娠晚期亚临床甲状腺功能减退症增加母婴合并症的风险。     

加强我国卫生领域科研诚信建设的重要性

近几年来,我国的科研不端案例呈不断上升趋势.科技部、教育部、中国科学院,国家自然科学基金委员会、中国科学技术协会等部门或机构已发布了关于科研不端行为的处理规定,然而在我国卫生领域科研不端行为的处理和科研诚信建设方面尚未出台相关政策或指导意见.加强我国卫生领域的科研诚信建设具有重要意义.     

The real and the ideal; gender differences in heterosexual behaviour among Norwegian adolescents

This article focuses on gender differences in early heterosexual behaviour among Norwegian adolescents. The material comprised a random sample of 3000 Norwegian adolescents aged 17–19 years. The response rate was 63%. Data were collected by means of anonymous self-administered questionnaires. Sixty-nine per cent of the girls and 59% of the boys had had sexual intercourse. The majority of the adolescents, and a larger percentage of girls than of boys, had their first intercourse within a relationship of mutual commitment. The boys' first coital partners were 0.2 years younger than the boys themselves and the girls' partners were 2.8 years older than were the girls. Boys had had more coital partners than girls but girls had had intercourse more often than boys. Coital frequency was affected more by how long the adolescents had known the partner than by gender as such. In conclusion, boys and girls aged between 17 and 19 years form part of couples at two different stages of development. For this reason, boys and girls accumulate different sexual experiences in the early stage of their sexual careers.     

The Role of Gender Identification in Social Dominance Orientation: Mediating or Moderating the Effect of Sex?1

Previous research has shown that people's gender identification correlates with their social dominance orientation (SDO). A question is whether gender identification mediates or moderates the effect of biological sex on SDO. We examined the correlations of sex and gender identification with SDO using the Bem Sex Role Inventory in Study 1 and a gender diagnostic measure in Study 2. Both studies showed that gender identification was significantly associated with SDO. In Study 1, gender identification partially mediated the effect of sex on SDO; and in Study 2, this mediation was complete. There were no indications that gender identification moderated the effect of sex on SDO. The results are discussed against the background of the gender invariance hypothesis of SDO.     

青少年网络成瘾人格特征研究

本研究采用问卷调查法,对某初级中学363名初中生的网络成瘾状况与人格特征进行研究。结论表明:初中生网络成瘾检出率为5.79%;初中生在网络成瘾存在性别差异,男生比女生更易成瘾。网络成瘾学生与非成瘾学生在《卡特尔十四种人格因素问题》中的忧虑性、自律性、适应性与焦虑性、孤独倾向、身体症状和冲动倾向等因子上差异显著。与非成瘾学生相比,成瘾学生的自制能力较差,成瘾学生可能更经常体验到孤独、焦虑和不满,并且在生活中较容易出现适应不良现象。     

听觉后见之明偏差的实验研究

后见之明偏差是一种人类认知自我中心。后见之明偏差的研究具有重大的理论价值和应用价值,尤其是其应用价值更不容低估。研究1采用回忆型和假定型研究范式考察听觉领域是否存在后见之明偏差;研究2采用回忆型研究范式,从需要角度考察奖励性动机对去除听觉后见之明偏差的作用。研究发现:听觉领域存在后见之明偏差;两种研究范式的后见之明偏差不存在差异;奖励性动机并不能消除听觉后见之明偏差。     

早期归隐现象与管晏的隐逸观

我国古代的隐逸发生很早,至迟在商周之际就有不少可信的例子,到春秋时期成为一种普遍社会现象。对于隐逸,管、晏进行了具体分析,给予隐士客观评价,并主张国家积极征召隐士。管、晏的隐逸观与他们自身经历有关,也是其“举贤授能”人才思想的一部分。管、晏招隐士的主张,对于当时诸侯笼络人才、赢取民心、稳定社会具有积极作用。