首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 125 毫秒
1.
魔方自发明至今仅30年,却已成为史上最具吸引力的玩具.魔方的魔力和魔方本身一样难以琢磨.为什么人们要把生命浪费在这个晦涩、耗时而无用的东西上呢?对此,魔方发明者的态度是:生活本身就是解谜.在20世纪80年代初,流行着一则关于魔方的传言.著名数学家约翰·康威的一个研究生在玩魔方时,不小心把胡子卷了进去,结果慢慢地整个人都被拽进了魔方.如果能把魔方还原到他被困住之前的状态,他就可以回来.于是康威让剑桥的所有电脑都开始运算,希单能找到匹配的状态,以求在屏幕上看到失踪的研究生.最终,仍无法算出,那个可怜的人被永远地困在了魔方里.  相似文献   

2.
山东工程师奔赴矿难现场智利位于南美洲西南部,安第斯山脉西麓.东与阿根廷为邻,北与秘鲁、玻利维亚接壤,西临太平洋,南与南极洲隔海相望.南北长4352公里,东西宽300多公里(最窄处仅96公里),是世界上地形最狭长的国家.该国地广人稀,但矿产资源丰富,是世界上最大的铜生产和出口国,被誉为"铜之王国".  相似文献   

3.
萨沙 《湖北档案》2016,(6):14-17
在中国远征军反攻缅甸的于邦战役中,驻印军参谋长柏特纳(美国人)竟然命令新38师112团携带轻武器和少量补给孤军深入,最终被数倍日军团团包围.而此时的新38师主力距112团还有20多天的路程.这边,日军王牌野战师团18师团长田中新一命令:55联队和56联队3个步兵大队和3个炮兵大队,立即渡河,寻找112团决战,将他们一举歼灭,同时救援于邦的被围日军.22日,日军主力全部渡过大龙河,112团2个营1000多人,反被日军6000多人团团围困.按照当时的情形,面对5倍日军的强攻,这1000多人能够支持2到3天就是奇迹了.令人惊叹的是,这1000多人居然支持了整整1个多月.这是日军18师团长田中新一做梦也没有想到的,甚至也超过了孙立人将军的预料.  相似文献   

4.
IPTC组织代表在北京期间,利用会议间隙,进行了参观考察。3月31日清晨,还没完全倒过时差的各国外宾,不顾旅途的劳顿,来到了北京奥运场馆考察,并赴奥组委调研座谈,4月3日下午,50多位IPTC代表一行又参观了新华社综合业务大楼。  相似文献   

5.
《新闻三昧》2008,(1):8
2008年1月,作为英国传媒大亨默多克曾经的重要助手,新闻集团前任执行官布鲁斯·多佛公开透露了一个早已成为历史的微妙细节.依照多佛的说法,默多克曾经认为自己在1993年发表的一次演说触怒了中国.在伦敦的演说中,默多克声言"卫星电视和传真等科技给专制政权造成威胁".直到1997年,这位传媒大亨写给中国的最高领导人一封私人信件,就4年前的那次演说引起的"误会"道歉,保证自己是"中国的好朋友","将继续坚定地为中国经济的发展努力".  相似文献   

6.
世界上许多城市都有以古旧书店闻名的街道,比如东京的神保町、伦敦的查令十字路、巴黎的塞纳河畔.但在中国,除了去过的北京的琉璃厂,听说过但没去过的台湾的牯岭街,就几乎没有听说过哪里有这样的古旧书店聚集的地方.然而,当东京、巴黎的这些旧书店继续以都市的文化地标骄傲地每年举办活动和旧书展,吸引世界各地的文化人、爱书人去参观、逛游时,我们的北京琉璃厂却在淡出中国图书的历史舞台--现在每年图书出版界的三次大集市:北京图书订货会、全国书市、北京世界图书博览会当然也一直与它完全沾不上边.为什么伴随着国内出版业一派高歌、蓬勃发展的,却是古旧书店的没落?  相似文献   

7.
今年以来,美英传媒业并购进一步升温,已波及更多的世界著名传媒企业.今年4月,创办160年、拥有《洛杉矾时报》《芝加哥论坛报》等大报的美国论坛集团,被芝加哥有实力的投资家以82亿美元的价格收购.5月15日,加拿大汤姆逊公司以88亿英镑的价格收购了具有150多年历史的英国路透社53%的股权,成立了汤姆逊——路透公司.美国传媒大亨默多克,76岁仍然宝刀不老,创业积极性不减当年,被华尔街称为"收购狂人".  相似文献   

8.
尚书权 《传媒》2007,(3):54-55
在办报过程中,我们经常要求编采人员在宏观报道中从微观入手,既高屋建瓴又笔触入微、既有全景又有局部、既要策划又要变化、既要有成熟风格还需一定创新等等,这些都是辩证法在新闻宣传中的运用.也就是说在新闻宣传的主题、采编、写作等各个环节不走极端,不能"过"又不能"不及",要努力把握好"度",把"度"和平衡点作为新闻的支撑点.  相似文献   

9.
预算紧缩下的美国报纸编辑部   总被引:1,自引:0,他引:1  
美国是世界报业强国,但是面对来自新技术、新媒体的严峻挑战,却始终无法摆脱发行量下降、广告收入下滑的局面。处于困境中的美国报业,一方面积极寻求与新媒体的融合,试图找到一条困境突围之路;另一方面,被迫实施一系列成本控制措施,紧缩编辑部预算,以改善财务状况。这些措施虽在一定程度上缓解了当下的财务压力,却对报业长远发展带来不利影响。  相似文献   

10.
早听说扬中有两位雷锋战友,多年来在每年3月5日全国学雷锋纪念日前后义务宣讲雷锋先进事迹.今年2月10日至13日,在毛泽东“向雷锋同志学习”题词发表52周年前夕,笔者有幸约请扬中目前唯一健在的雷锋战友——原雷锋所在团政治处副主任孔繁顺进行了两次访谈.另一位战友,曾任雷锋所在团政治处干事的金国宝已于4年前去世.提起雷锋,孔繁顺老人一脸兴奋,侃侃而谈.在访谈过程中,他向笔者展示了珍藏的一件宝贝——1张4时雷锋穿一身军装手持冲锋枪的正面黑白照片,该照片是1961年雷锋在牺牲前一年赠送给他的.孔繁顺当时在部队是怎样认识雷锋的?与雷锋有哪些交往?雷锋又怎么会把自己的照片送给他的呢?面对疑惑,老人打开了话匣子,娓娓道出许多鲜为人知的雷锋故事.  相似文献   

11.
ABSTRACT

The article examines the most important periodicals of ethnic minorities in Poland. After 1989, many ethnic groups (e.g., Germans and Romanies) were allowed to publish journals and newspapers for the first time since the end of World War II. The publications examined show the rich cultural life of the various ethnic groups as well as their current status in Poland. In addition to popular titles, some scholarly publications are also discussed.  相似文献   

12.
The author answers a reference question on bibliographic sources for the Ukrainian periodical press 1840–1850. Helpful publications include bibliographies, guides, and library catalogs. These potentially make mention of revolutionary developments in Hungary (such as the Twelve Points paragraph of the Demands of the Hungarian Nation in March 1848, the subsequent April Laws, and Hungary's declaration of independence in April 1949), and elsewhere in the Hapsburg Empire.  相似文献   

13.
ABSTRACT

In today's current political environment raising support for millage renewals, bond campaigns or even millage continuations for public libraries is affected by national politics, and a tendency towards tax aversion on principle across the country. The lessons we can learn from the governing boards of small and rural public libraries are worth raising up to a greater national consciousness. Board governance, community consciousness, and facilities management are clear and logical tools that elected boards of public libraries can use to politick for support of libraries.  相似文献   

14.
ABSTRACT

The history of the almanac in Croatia is reconstructed through primary research in bibliographic and archival sources. The almanac is a vehicle for knowledge communication in informal contexts, engaging both oral tradition and literary forms traceable to medieval literacy and ways of structuring knowledge. The history of the almanac in Croatia reflects the changing context of the book trade, literacy, and the evolution of language. Four main stages are identified: (1) the beginning of the annual almanac in the seventeenth century; astrological almanacs reflecting the sensibility of the Baroque period; (2) the Enlightenment's stimulation of almanac publishing in the spirit of contemporary secular reforms in agriculture and education; (3) nineteenth-and twentieth-century almanac trade, showing complex and overlapping networks for the production, distribution and appropriation of printed almanacs;(4) roughly the end of World War II, when the almanac slowly moved out of the role of a popular mass medium and into specialized niches represented by regional, diaspora, and religious almanacs.  相似文献   

15.
Some key questions for publishers in today’s market are: Could Amazon’s recent merger and acquisitions strategy create a disruptive or paradigm shifting business model in the publishing industry? Do their recent actions post mergers and acquisitions illustrate a predicable pattern of behaviour that publishers can strategize around? This paper will explore these questions and look at some of the possible reasons behind Amazon’s business practices and the possible consequences to publishers.  相似文献   

16.
ABSTRACT

German authorities are expecting more than 1 million refugees by the end of 2015. These people come to Germany to seek protection and assistance and to build a new life, therefore it is important to welcome them and to assist them in their integration as soon as possible. This situation creates a versatile and perfectly fitting opportunity for cultural and educational programs, including libraries, which can play a vital role in this integration process. The key to integration is the knowledge of the German language, and the most important challenge now is to teach the necessary language skills to as many asylum-seekers as possible.  相似文献   

17.
Abstract

Many libraries use RSS to syndicate information about their collections to users. A survey of 65 academic libraries revealed their most common use for RSS is to disseminate information about library holdings, such as lists of new acquisitions. Even though typical RSS feeds are ill suited to the task of carrying rich bibliographic metadata, great potential exists for developing applications that can exploit metadata exposed to Web services via RSS. Using the MODS metadata format, entire catalog records can be seamlessly embedded in RSS 2.0 feeds. Existing tools, such as Library of Congress Java toolkits and XSLT stylesheets, can facilitate this process, while a new XSLT stylesheet may be used to create the RSS feeds complete with MODS records. As an example of the added functionality these MODS/RSS feeds can offer, records from a MODS-enriched RSS feed can be ingested into a non-RSS application such as Zotero. As more emerging library technologies use Web services architectures to handle data objects, the ability to syndicate catalog records will become more critical to providing innovative library Web services.  相似文献   

18.
This essay investigates key moments in the history of personal digital assistant (PDA) marketing to women. Analyzing promotional texts for three PDAs that received considerable press coverage from 1999 to 2001, this essay explores the cultural significance of the convergence of anxieties about women's place in the gendered division of labor with the computer industry's changing marketing imperatives. Drawing on an array of promotional texts, including news articles, press releases, promotional Web sites, and ads appearing in newspapers and magazines, this paper tells the story of how the computer industry aimed to sell smaller, faster computing devices to women while promising to mediate and thus reproduce women's overwork as paid and familial laborers. After experimenting with the PDA as a sexy fashionable gadget for working women, marketers approached women as mothers with “Audrey,” an Internet appliance designed for the kitchen.  相似文献   

19.
This study explores the attitudes and actions of bank managers toward communication spending during recession. Results of this study indicate that organizational leaders cut communication spending early during recession and also erroneously rely on the bank's financials to mitigate irrational customer withdrawals. This research is used to illustrate the need for public librarians to meet the needs of bank stakeholders when their institution ceases to communicate during crises, for academic librarians to educate students in undergraduate and graduate programs regarding heightened information needs during recession, and for corporate librarians to understand a potential avenue for competitive advantage during recession.  相似文献   

20.
毛彦妮  王菲菲 《图书情报工作》2012,56(18):93-98,126
指出共链分析已在商务网站评价、竞争情报分析、商业信息挖掘等领域有广泛应用。综合运用共链分析与社会网络分析的方法,对国内市场份额排名前50位的电子商务网站的企业竞争态势与竞争关系及地位进行综合分析,并对企业间潜在竞争关系挖掘进行初步探索,以期能对竞争情报方法论研究和国内电子商务市场的发展提供一定的启示和参考。研究发现,共链网络中节点的程度中心性与企业实际的市场份额之间存在显著的相关关系,且竞争关系多存在于不同组织下业务类型相似的企业实体,而有些互补服务的企业之间则是合作关系的存在,这一发现或许能为未来电子商务市场发展战略规划与制定提供一定的指导和帮助。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号