多维理论视域中的能源政治与安全观

关于国际能源政治及其安全的各派理论观点虽视角各异,但其相互间实际上是互为交叉和影响,并日益呈现出共同特征.随着冷战后世界经济全球化进程的加速,各国在能源领域的相互依存日渐加强,既竞争又协调成为国际能源政治的主流.由此各方越来越重视能源领域的国际合作及其国际机制的建设,主张通过国际合作与协调来实现能源安全,将维护能源安全与实现经济和社会的可持续发展、与国家的对外政治和经济关系紧密联系起来.     

论全球化传播语境下的国家形象建构

2008北京奥运会结束之后,中国进入到“后奥运时代”,中国的对外传播从此处在了全球化语境之下。在后奥运时代的全球化传播语境下,为塑造合意的国家形象,中国应该从以下四个方面来努力：讲究符号媒介的跨文化选用、提升对外媒体的公信力、加强政府对世界媒体的公关和营造理性的媒介公共领域。     

Optimal step-stress testing for progressively Type-I censored data from exponential distribution

In this paper, a k  -step-stress accelerated life-testing is considered with an equal step duration τ$\tau$. For small to moderate sample sizes, a practical modification is made to the model previously considered by Gouno et al. [2004. Optimal step-stress test under progressive Type-I censoring. IEEE Trans. Reliability 53, 383–393] in order to guarantee a feasible k  -step-stress test under progressive Type-I censoring, and the optimal τ$\tau$ is determined under this model. Next, we discuss the determination of optimal τ$\tau$ under the condition that the step-stress test proceeds to the k  -th stress level, and the efficiency of this conditional inference is compared to that of the previous case. In all cases considered, censoring is allowed at each point of stress change (viz., iτ$i\tau$, i=1,2,…,k$i=1,2,\dots ,k$). The determination of optimal τ$\tau$ is discussed under C-optimality, D-optimality, and A-optimality criteria. We investigate in detail the case of progressively Type-I right censored data from an exponential distribution with a single stress variable.     

Order restricted statistical inference for scale parameters based on sequential order statistics

In the situation of a multi-sample experiment consisting of differently equipped sequential k-out-of-n systems, scale parameters of underlying distributions from a general location-scale family of distributions are estimated under an order restriction. In each sample, the case of missing the smallest observations is included. Moreover, based on a profile likelihood a homogeneity test against an ordered alternative is proposed and analyzed. This work extends an approach of Bhattacharya [2007. Testing for ordered failure rates under general progressive censoring. J. Statist. Plann. Inference 137, 1775–1786] in the progressive Type-II censoring framework.     

中国与日本分行业TFP水平的国际比较: 1995-2006

 本研究利用以价格表示的国家间分行业全要素生产率（TFP）水平差距的测算模型,测算了1995-2006年中国与日本的TFP水平差距,研究结果表明：中日两国的TFP水平差距在1995年后逐步加大,中国的TFP表现出“没有追赶的快速增长”。     

Finding an unknown number of multivariate outliers

Summary.  We use the forward search to provide robust Mahalanobis distances to detect the presence of outliers in a sample of multivariate normal data. Theoretical results on order statistics and on estimation in truncated samples provide the distribution of our test statistic. We also introduce several new robust distances with associated distributional results. Comparisons of our procedure with tests using other robust Mahalanobis distances show the good size and high power of our procedure. We also provide a unification of results on correction factors for estimation from truncated samples.     

跨国移民与学缘网络——以日本D大学中国人研究者为个案

国际移民的研究中一直以关注移民的文化适应、移民与移入地居民的互动、移民网络的建构及移民社区的形成为主流,但是当今世界的国际移民群体已经发生了分化．不仅存在低人力资本的国际移民,同样存在着高人力资本的移民,他们的受教育程度、社会经济地位普遍高于移人地居民,本研究通过70个样本的个案研究发现,在他们的国际移民实践中,对血缘和地缘网络的依赖程度十分有限,他们更热衷于构建跨越区域空间的学缘网络、这不仅成为他们孤独的移民生活的情感寄托,也成为他们职业发展的需要。     

The op-ed as a strategic tool of public diplomacy: Framing of the 2011 Egyptian revolution

The current study examines how the op-ed section of two prominent international newspapers were used for the articulation of public diplomacy issue stands by international experts who made an attempt to influence both government policy and public opinion abroad.     

International public relations’ influence on media coverage and public perceptions of foreign countries

The purpose of this study is to examine the influence of international public relations on a target country's news coverage and public perceptions toward other countries. This study proposed a public relations influence model of national image formation and tested its relationships based on 27 countries’ public relations effort targeting the U.S. news coverage and publics. This study found that (1) public relations of other countries in the U.S. had a direct impact on how significantly the U.S. public perceived those countries; (2) the more prominently and favorably foreign countries were covered by the U.S. news media, the more significantly and favorably the U.S. public perceived and felt toward those countries.     

International Well-being Index: The Austrian Version

The International Well-being Index (IWI) measures both personal and national well-being. It comprises two subscales: the Personal Well-being Index (PWI) and the National Well-being Index (NWI). The aim of this paper is to test the psychometric properties (validity and reliability) of the translated scale in Austria. Convergent validity is assessed using the Scales of Psychological Well-Being, the Satisfaction with Life Scale and the Positive and Negative Affect Scale. In addition, a Visual–Analog Scales capturing “satisfaction with life as a whole” was applied. The participants were 581 students of the Medical University Innsbruck (female: 47.7%; age: 23.2 ± 3.7). Internal consistency (Cronbach’s α) of the IWI was for both scales > .70 (PWI: .85; NWI: .83). The exploratory factor analysis of the IWI identified a 2-factor-structure identical with the two scales of the IWI explaining 54.2% of the variance. The convergent validity hypotheses were confirmed, construct validity was partly confirmed for the PWI being a deconstruction of a first factor called “satisfaction with life” (38.1% explained variance). Happy participants scored higher on the PWI (84.3 ± 7.9 vs. 68.7 ± 13.7; p < .001) and NWI (64.3 ±  15.8 vs. 57.9 ±  15.1; p < .001) scores than unhappy participants. It is concluded that the Austrian version of the IWI is a reliable and valid instrument to assess personal and national well-being. Further studies including a representative sample should be carried out on a recurring basis to use the IWI as an indicator for social science research in Austria.