两党博弈媒体媒体倾力助阵——2012美国总统大选冲刺阶段各类媒体评析

刚刚结束的美国总统大选和以往历届一样，要想入主白宫，必须借助于媒体力量方可。笔者在美国期间刚好赶上了本届总统犬选，实地认真地观察了此次选举，对美国国内各类媒体在大选中的具体表现有着切身感受，因而，通过本文对美国几大主流媒体在本届大选中的具体表现，做一番较深入探索，着重从新闻学、传播学、广告学视角探讨各类媒体在大选最后那段日子的所作所为，力争能在传播学研究领域有一个新的启迪。     

The contested spatialities of transnational activism: gendered gatekeeping and gender struggles in an African association of informal workers

In this article I explore the geographies of emerging transnational networks of organized informal workers, with empirical reference to a local association based in Mozambique and a transnational network of which it is part. I uncover the gendered spatialities of this transnational activism to demonstrate how participation is unequal and heavily mediated rather than direct. In particular, I show how influential actors have engaged in practices of gendered gatekeeping that tend to keep women in place. I also explore the tensions that emerged because of these practices and the negotiation of divergent gender ideologies and strategies within the network. In the article, I relate to recent theoretical work that problematizes the unequal and contested geographies of transnational activism, and introduce insights from feminist scholarship to reflect on gender inequalities and gender visions in transnational networks.     

How responsive is U.S. population growth to immigration? A situational sensitivity analysis

There has been public concern about the effect of immigration on population growth in the U.S. But how responsive is population growth to immigration? This paper examines the sensitivity of intrinsic population growth to immigration and situates such sensitivity in fertility and survival changes. The application of second derivatives on a modified Leslie matrix facilitates the analysis of situational sensitivity of U.S. population growth to immigration. The results show that the sensitivity to immigration is not as influential as the sensitivity to fertility, and that the sensitivity to immigration further depends on changes in fertility and survival.     

Familialisation Effects of the State Welfare: Focused on the National Health Insurances in S. Korea and Taiwan

The national health insurances in Korea and Taiwan have maintained the dependent system that includes the insureds and their families. These two cases explicitly exemplify the familialism in East Asian welfare regime. However, comparing the two systems in detail, we can easily note the variation in their familialisation effects despite similar family realities in the two societies. To explain why Korea and Taiwan adopted the NHI of different institutional arrangements, this article focuses on the historical combination of the state's political and fiscal concerns and families' rational choice, which led to the variation in family policy.     

华莱士访华与美国“重返亚洲”

1943年二战战局扭转,美国出于自身全球战略利益的考量将外交政策重心从欧洲转向了亚洲,华莱士访华正是美国“重返亚洲”政策的产物。华莱士访华以经济利益为主导,并对中美战时和战后的经济合作产生了重大的影响,达到了双赢的效果,一方面国民政府获得了梦寐以求的经济军事援助,另一方面美国也收获了一个资源丰富、市场广阔的“小伙伴”作为战后经济发展的“新边疆”。     

战后美国对日本教育的改革新探（1945-1950）

对日本的教育民主化改革是战后美国对日本进行全面改造的一个重要方面,对日本教育的改革是去除日本军国主义和极端民族主义因素以及将日本改造成为一个西方式的民主国家的重要途径。为此在占领日本后,美国不仅对日本的教育管理体制、课程体系进行改革,还对日本的体育、宗教教育进行了大规模的改造。随着冷战的爆发,日本成为了美国与苏联在远东积极争取的目标,为了抵制共产主义在日本的传播,美国开始在日本的教育界展开了反共行动,并利用宗教作为对日本进行反共宣传攻势的重要工具。通过美国对日本的民主化教育改革的内容和过程的追述,认为在对日本的改革中美国采取了以专制的形式培育民主的政策,干涉了日本的学术自由和宗教自由。     

替吉奥联合多西他赛方案治疗晚期及复发性胃癌的近期疗效观察

目的：观察替吉奥联合多西他赛方案治疗晚期及复发性胃癌的近期疗效及不良反应。方法对22例晚期及复发性胃癌采用替吉奥胶囊（维康达）80mg/m2,分2次口服,d1～d14;多西他赛75mg/m2,静脉滴注1小时,d1;21天为1周期,连用2个周期后评价疗效和不良反应。结果22例均完成2周期以上化疗,均可评价,其中2例完全缓解（ CR ）,10例部分缓解（ PR）,7例稳定（ SD）,3例进展（ PD）,总有效率（ CR＋PR）54.5％。主要不良反应为胃肠道反应、骨髓抑制,均较轻,未影响治疗。结论替吉奥联合多西他赛方案治疗晚期及复发性胃癌的近期疗效较好,不良反应可以耐受,值得临床进一步研究。     

对艾森豪威尔时期美国在不发达地区开展经济援助外交的历史考察

冷战时期美国对第三世界国家实施的经济援助外交是其遏制战略的重要组成部分。尽管领袖个人因素和国内因素对美国外交政策选择起到一定作用,但美苏争霸的国际背景和对第三世界的争夺态势,从根本上影响着艾森豪威尔政府的战略考量和决策,因此美国在这一期间对不发达地区的经援外交经历了初期收缩援助——中期重视经援外交——末期加大援助力度这一起伏发展历程。尽管这一时期的经济援助外交成效并不明显,但推进和固化了美苏从意识形态战争到经济冷战的新边界,也为肯尼迪时期将发展援助确定为长期国策打下基础。     

S改性的纳米TiO2的制备及其可见光催化性能研究

以四氯化钛为钛源,硫溶胶为硫源,在室温下采用水解沉淀法制备了单质硫改性的纳米TiO2光催化剂．采用X-射线衍射（XRD）、透射电子显微镜（TEM）、X-射线光电子能谱（XPS）、紫91,-可见（uV—Vis）漫反射光谱和N：吸附-脱附对样品进行了表征分析．以次甲基蓝（MB）溶液为模拟废水,对其可见光催化性能进行了评价,研究了不同热处理温度对光催化活性的影响．结果表明,硫掺杂有效地抑制了纳米TiO2在热处理过程中由锐钛矿向金红石的转变,在低温下热处理得到的样品为单质硫与TiO2的复合,而500℃以上热处理得到的样品为S^4＋的掺杂,S复合与掺杂的纳米TiO2光催化剂在可见光区有明显的吸收,400℃热处理所得样品具有最好的光催化性能．这种硫复合或掺杂的纳米TiO2的催化降解性能显著高于相同方法制备的纯TiO2．催化剂经6次重复使用其光催化活性基本保持不变．