引导关系实证研究—上证A股指数与上证B股指数的引导关系检验

由于我国证券市场中A股与B股产生的原因及一直以来的走势，业内人士对A、B股指之间的关系有不同的意见。本文在理论上对不同观点进行验证，对上证A、B股近两年来500个收盘指数用线性回归模型进行引导关系检验，分析检验结果认为：它们的走势之间基本上独立发展，在部分时间段存在互动关系，股指大幅波动时有A指滞后引导B指的情况，而B指滞后引导A指的情况则很少发生。     

Internetworking and the Politics of Science: NSFNET in Internet History

This article presents an account of the process of development of the NSFNET and its significance for the emergence of the Internet of the 1990s. The fact that the development of the interconnected system of computer networks occurred within the realm of academic research is not incidental. The dynamics of the world of scientific research were intimately related to the shaping of the network and to the way in which it spread to other sectors of society. The construction of computer networks crossed the boundaries between science and society in order to build the scientific realm by transforming the world in which it is embedded.     

Peace and Human Rights Education in the Middle East: Comparing Jewish and Palestinian Experiences

The Washington agreement of 1993 gave a new impetus to attempts by Palestinian and Israeli leaders to find a peaceful solution to their differences. The author asks to what extent this process has been accompanied by peace/human rights education programmes for Israeli and Palestinian children. While such programmes exist, they are very limited and have so far made little impact in reversing the long educational legacy of mutual distrust and hostility, which the article examines in detail. Furthermore, the continuing conflicts between the two communities make peace/human rights education difficult. However, despite the enormous obstacles, the author concludes that the efforts of peace/human rights educators are not wasted.     

The Entrepreneurial University: a Fine Answer to a Difficult Problem?

The recent changes in the relationship between universities and society and the change of attitudes of governments towards higher education institutions are analysed. The different possible reactions of the institutions to the more demanding attitude of society as a whole are discussed. The authors present a critical view of the concept of entrepreneurial universities based on the work of Burton Clark and on the results of the quality audits of the Association of European Universities (CRE), and offer some comments about their applicability and usefulness to European higher education systems.     

CAD的现状及发展趋势

介绍了CAD技术的发展过程及现状,指出了CAD技术的发展趋势是智能化、集成化和网络化。     

试论信息高速公路与图书馆

信息高速公路是以计算机技术、网络通讯技术为基础,以光纤、数字卫星系统为主要信息传输载体的社会基础设施。信息高速公路将彻底改变传统图书馆信息资源的搜集、整理、加工的工艺流程、工作手段、服务方式和生存、发展空间。行驶在信息高速公路上的图书馆的现代化程度也...     

Young Children Are Wishful Thinkers: The Development of Wishful Thinking in 3- to 10-Year-Old Children

Previously, research on wishful thinking has found that desires bias older children’s and adults’ predictions during probabilistic reasoning tasks. In this article, we explore wishful thinking in children aged 3- to 10-years-old. Do young children learn to be wishful thinkers? Or do they begin with a wishful thinking bias that is gradually overturned during development? Across five experiments, we compare low- and middle-income United States and Peruvian 3- to 10-year-old children (N = 682). Children were asked to make predictions during games of chance. Across experiments, preschool-aged children from all backgrounds consistently displayed a strong wishful thinking bias. However, the bias declined with age.     

Dynamic Transition Patterns in Acculturation Among Hispanic Adolescents

Acculturation consists of multiple domains (i.e., cultural practices, identifications, and values). However, less is known about how acculturation processes influence each other across multiple domains of acculturation. This study was designed to investigate transition patterns of acculturative processes within and across domains in a sample of 302 recent-immigrant Hispanic adolescents, M_age (SD) = 14.51 years (0.88) at baseline; male = 53%). Adolescents were assessed six times over a 3-year period. Latent profile analyses identified two profiles (high [or increasing] vs. low) for each domain at each timepoint. We found largely stable transition patterns in each domain over six timepoints. Importantly, sequential associations among profiles in acculturation domains were also detected. Implication for acculturation theory and research are discussed.     

The Quality and Readability of English Wikipedia Anatomy Articles

Forty anatomy articles were sampled from English Wikipedia and assessed quantitatively and qualitatively. Quantitatively, each article’s edit history was analyzed by Wikipedia X-tools, references and media were counted manually, and two readability indices were used to evaluate article readability. This analysis revealed that each article was updated 8.3 ± 6.8 times per month, and referenced with 33.5 ± 24.3 sources, such as journal articles and textbooks. Each article contained on average 14.0 ± 7.6 media items. The readability indices including: (1) Flesch–Kincaid Grade Level Readability Test and (2) Flesch Reading Ease Readability Formula demonstrated that the articles had low readability and were more appropriate for college students and above. Qualitatively, the sampled articles were evaluated by experts using a modified DISCERN survey. According to the modified DISCERN, 13 articles (32.5%), 24 articles (60%), 3 articles (7.5%), were rated as “good,” “moderate,” and “poor,” respectively. There were positive correlations between the DISCERN score and the number of edits (r = 0.537), number of editors (r = 0.560), and article length (r = 0.536). Strengths reported by the panel included completeness and coverage in 11 articles (27.5%), anatomical details in 10 articles (25%), and clinical details in 5 articles (12.5%). The panel also noted areas which could be improved, such as providing missing information in 28 articles (70%), inaccuracies in 10 articles (25%), and lack or poor use of images in 17 articles (42.5%). In conclusion, this study revealed that many Wikipedia anatomy articles were difficult to read. Each article’s quality was dependent on edit frequency and article length. Learners and students should be cautious when using Wikipedia articles for anatomy education due to these limitations.