“栓紧缰绳”与“反攻大陆”:肯尼迪与蒋介石的战略之争

60年代初蒋介石集团企图利用大陆的经济困难实行大举反攻。其计划遭到美国肯尼迪政府的百般阻挠拖延 ,且因大陆方面严阵以待 ,而未能遂行。但蒋介石经过顽固力争 ,终于把美国拖入对其小股侦袭窜扰大陆活动的援助中 ,从而达到了牵制美国不能调整对华关系 ,只能继续支持台湾的战略目标 ,促使美国与中共继续保持敌对状态     

应当关注度量技术供给与需求关系的统计指标

应当关注度量技术供给与需求关系的统计指标丁晓良牛文元ＡＢＳＴＲＡＣＴＴｈｅｐａｐｅｒｄｉｓｃｕｓｓｅｓｆｒｏｍｔｈｒｅｅａｓｐｅｃｔｓｔｈａｔｔｈｅｓｔａｔｉｓｔｉｃａｌｉｎｄｉｃａｔｏｒｓｒｅｆｌｅｃｔｉｎｇｔｈｅｍｅａｓｕｒｅｍｅｎｔｏｆｒｅｌａ...     

Socioeconomic Inequality and Life Satisfaction in Late Childhood and Adolescence: A Moderated Mediation Model

An increasing number of studies have established an association between socioeconomic inequality and life satisfaction, but the underlying mediating and moderating mechanisms of this association have not been fully identified. The present study investigated the effect of family socioeconomic status (SES) on life satisfaction in late childhood and adolescence; examined the mediating effect of optimism in the association between family SES and life satisfaction; and tested whether this mediating process varied across late childhood and adolescence. A sample of 552 Chinese children in late childhood (M _age = 10.73 years, SD = 0.96) and 637 Chinese adolescents (M _age = 14.71 years, SD = 1.60) was recruited to complete questionnaires regarding family SES, optimism, and life satisfaction. Results indicated that socioeconomic inequality was associated with life satisfaction in Chinese children and adolescents. Moreover, optimism partially mediated the relation between family SES and life satisfaction, and developmental period moderated this mediation effect. Specifically, the mediation effect was found in adolescence, but not in late childhood, indicating an adolescent-emergent model (Chen et al. in Psychol Bull 128(2):295–329, 2002; in Soc Sci Med 62(9):2161–2170, 2006). The meaning and implications of socioeconomic inequality in different development periods and applied considerations to improve life satisfaction in late childhood and adolescence are discussed.     

Near-Balanced Incomplete Block Designs,With an Application to Poster Competitions

Judging scholarly posters creates a challenge to assign the judges efficiently. If there are many posters and few reviews per judge, the commonly used balanced incomplete block design is not a feasible option. An additional challenge is an unknown number of judges before the event. We propose two connected near-balanced incomplete block designs that both satisfy the requirements of our setting: one that generates a connected assignment and balances the treatments and another one that further balances pairs of treatments. We describe both fixed and random effects models to estimate the population marginal means of the poster scores and rationalize the use of the random effects model. We evaluate the estimation accuracy and efficiency, especially the winning chance of the truly best posters, of the two designs in comparison with a random assignment via simulation studies. The two proposed designs both demonstrate accuracy and efficiency gain over the random assignment.     

现阶段完全母乳喂养的性别差异研究

本文使用（2001年全国计划生育／生殖健康调查》数据,分析了我国育龄妇女对新生男、女婴在完全母乳喂养时期方面的差异。该研究以被调查妇女的曾生子女为研究单位,利用多层模型（包括母亲与婴儿两层）在控制母亲的人口社会经济特征等异质性的基础上,重点分析家庭既有子女性别构成对男、女婴完全母乳喂养期的影响。研究结果表明,现阶段家庭性别偏好在一定程度上依然存在,并影响到对子女的养育。     

新中国成立以来我国婚姻匹配模式的变迁

伴随着工业化和现代化的进程,我国婚配模式也经历了变迁。本文利用2006年中国综合社会调查数据,分析了在新中国成立以来婚配模式的变迁,检验了工业化理论对我国婚配模式演变的解释效力。研究发现,我国各时期的婚姻匹配模式主要表现为不同社会特征群体的同类婚;此外,各时期的异质性婚配现象呈现明显的对称性。不同社会特征婚姻匹配强度的变化趋势部分印证了工业化理论,自致性特征在婚姻匹配中的重要性不断上升,而先赋性因素的重要性则经历了一个先降后升的过程。对同类婚和异质婚具体形式的进一步分析发现,不同社会阶层的边界可渗透性在各时期存在明显差异,相应的同类婚和异质婚现象也呈现不同的特点。     

《诗经》成语演变研究

对源于《诗经》的成语及其演变进行研究,考察其演变过程。认为社会发展、作家的主观性、讹变、词义的变化是导致《诗经》成语在形式和意义两方面发生演变的主要原因。     

滨海新区依托京津冀发展的途径研究

一、依托京津冀的产业发展与布局 京津冀的产业分工与布局呈现以下状态：一是从区域比较优势和资源优势上看．京津冀核心城市各具特色。河北省属于资源型地区．采掘业、重加工业和农副产品生产、加工业占优势：天津属于加工型地区,以非农产品为原料的加工业占优势：北京属于知识型地区．