Quantum cryptography beyond key exchange

This chapter describes the applicability of quantum cryptography beyond key exchange. The section is devided into two parts: one describing applications of quantum cryptography different from key exchange and the other considering countermeasures to additional threats like coercibility or traffic analysis. Every section ends with a short summary or an appraisal in boldface and in the conclusions all topics of this section are briefly outlined and in an outlook we give a personal statement about the relevance of quantum cryptographic pro tocols and promising future directions of research.     

跨越时空的情谊

<正>1944年9月16日,毛泽东在重庆会见了三位美国大兵:爱德华·贝尔、霍华德·海曼、杰克·艾德尔曼,他们在红岩村历史性的合影,作为中美人民友谊的象征,悬挂在北京中国人民历史博物馆。这三位美国大兵是我的好朋友,我为他们牵线见到中国共产党的领导人毛泽东、周恩来而感到非常荣幸;回想往日我们在一起时的情景,人生有这样弥足珍贵的情谊,真是刻骨铭心啊!     

The activities of VINITI RAS as a key organization of the Commonwealth of Independent States for the exchange of scientific and technological information

The activities of VINITI as a Key Organization of the Commonwealth of Independent States (CIS) which is responsible for the interstate exchange of scientific and technical information are analyzed; major areas of the activities of the Key Organization are presented. One of the main priority areas is the participation, jointly with the National Centers for Scientific and Technological Information and the Interstate Coordination Council for Scientific and Technological Information, in the scientific information and analytical support of research activities and international programs and projects that are implemented by the CIS member states in the area of innovation.     

Continuing education/beyond higher education

Publicly funded institutions, such as NIH, NLM, and state-supported universities, have explicit public service missions that extend beyond the walls of a single institution. During the past few years, national organizations, such as NLM and AAMC, have funded studies and projects to measure how well universities are adapting to technological change and educational reform. The IAIMS models are evidence of universities fostering cooperative rather than duplicative effort. Opportunities and problems facing universities extending systems and services to the private practice setting, to community-based health care HMO's, and to state and local health care agencies are discussed in terms of political, economic, and geographic realities. Instilling lifelong learning concepts begins before the health professional enters practice and is dependent on the emphasis universities place on "excellence in teaching." Without cooperation among core facilities, such as libraries, computer centers, and excellent instructors, continuing education will remain a parochial issue instead of a national thrust toward the continuum of the learning process. If continuing education is to become a high priority for universities and take its place on the education spectrum, flexible policies must be established to accommodate individual practitioners' expectations and interests.     

Censorship in the south and beyond

Although many Americans believe that censorship is mainly a southern problem, in fact the situation in the South is neither worse nor better than in the rest of the country. This article reviews instances of censorship in the South, recent court cases, and federal and state legislation. Oren J. Teicher is president of the American Booksellers Foundation for Free Expression and director of government affairs for the American Booksellers Association     

Quantum mechanics and classical computing

Scaling properties of modular quantum systems will dominate the future of quantum computing as well as the potential role of quantum mechanics in classical computing. We undertake a brief journey through length- and time-scales in order to locate pertinent control schemes. It is argued that ‘‘quantum benefits’’ are more likely to survive in ‘‘imbodied’’ systems like coherently driven materials, sensors or robots than in abstract digital computation.     

Quantum mechanics and classical computing

Scaling properties of modular quantum systems will dominate the future of quantum computing as well as the potential role of quantum mechanics in classical computing. We undertake a brief journey through length- and time-scales in order to locate pertinent control schemes. It is argued that ‘‘quantum benefits’’ are more likely to survive in ‘‘imbodied’’ systems like coherently driven materials, sensors or robots than in abstract digital computation.     

国外数字图书馆研究比较

目前世界各国的数字图书馆研究项目大致可以分为:技术主导型、资源主导型和服务主导型三大类。然而从数字图书馆研究的全局来看,各国的思路和侧重点均存在不同程度的差异。本文对几个国家(如美国、日本、加拿大、英国和德国等)数字图书馆的开展情况进行了深入研究,分别从以下几个方面将各国数字图书馆研究进行比较。1数字图书馆建设的目的促进信息的共享和交流是数字图书馆建设的最终目的。研究表明,各国在发展数字图书馆的过程     

关键词标引的若干问题探讨

分析关键词标引中存在的若干问题,探讨关键词与文献主题、标题词、专业术语、主题词、自由词的关系,提出提高关键词标引质量的对策.     

OneSearch in a dental library: beyond MEDLINE.

MEDLINE, which includes the Index to Dental Literature, has been the database of choice for most search requests generated at Indiana University School of Dentistry. However, many requests extend beyond dentistry and the health sciences into the realms of business, education, psychology, law, and computer technology. For these requests, DIALOG's new OneSearch feature can be a simple and cost-effective mechanism for supplementing searches that would otherwise be confined to MEDLINE.     

The information exchange groups experiment

From 1961 through 1966, the National Institutes of Health operated a facility for the rapid distribution of unevaluated preprints to research workers—an obvious precursor of many of the activities taking place today on the Internet. The experiment began with 32 researchers in a single Information Exchange Group (IEG). It grew to seven IEGs with total membership over 3600. During 1966, more than 1.5 million copies of preprints were produced and distributed. Considerable enthusiasm was generated among researchers who valued the speed of dissemination. Critics charged that the quality of the average preprint deteriorated with increased participation. They also noted that the unplanned burdens on production had often delayed receipt of the preprints until after they had appeared as formally reviewed journal papers. During this period, the Atomic Energy Commission had mounted a similar experimental program of “written informal communications” that was limited to theoretical high energy physics. Note: The NIH experiment ended as described by this summary, which was published inScience (154:843, 18 Nov. 1966). Obviously, no one wished to pay for it any longer. Despite the efforts of librarians at NIH, National Library of Medicine, and National Technical Information Services, we have not been able to locate the promised final report—A.H.