共查询到20条相似文献，搜索用时 421 毫秒
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唐丹妮 《记者观察(上半月)》2011,(2):50-52
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
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碧云天 《记者观察(上半月)》2011,(3)
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
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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
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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
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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
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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
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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
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Milan Grba 《Slavic & East European Information Resources》2017,18(3-4):152-164
This article surveys a sample of sources of the information about Romania available to British readers in nineteenth century British newspapers and periodicals. It traces first contacts between the Romanian lands and Britain after the union of the principalities of Wallachia and Moldavia in 1859, then after their independence from the Ottoman Empire. The article highlights an increased Romanian interest in British periodicals, which reported and reviewed Romanian literature and scholarship. The article concludes that nineteenth century British newspapers and periodicals offer a great variety and wealth of new material previously unavailable or unknown to researchers. It also states that only a portion of a large quantity of this material has been indexed and is therefore available via the bibliographic sources mentioned in the article. The author argues for the need of a new and updated British-Romanian bibliography, which can draw on new online resources offering access to thousands of new newspapers and periodical records. 相似文献
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《Slavic & East European Information Resources》2013,14(4):25-33
ABSTRACT The paper looks at library approval plans for material published in Slavic, East European, and Eurasian countries from the selector's point of view. Reasons why a selector would or would not want one are examined. Success with approval plans requires monitoring receipts, as well as good and ongoing communication among the selector, the acquistions department, and the vendor. A preliminary list of vendors offering approval plans for the countries of the region appears in the appendix. 相似文献
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为进一步提升武汉科技信息共享服务平台使用效率,本文从平台资源建设、资源应用、供需对接方式和供需特点等方面分析了武汉科技信息资源服务现状;基于需求和利用的角度,结合平台管理实践和走访用户、问卷调查等研究方法,从信息资源需求主体和平台自身建设管理两个维度,找出制约科技资源供需对接的主要因素;以市场化和制度化为创新理念,从政策创新、机制创新、市场化服务、环境营造、人才培养等方面提出平台建设由“资源集聚”向“需求导向”转变的对策建议. 相似文献
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《Slavic & East European Information Resources》2013,14(1-2):123-143
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
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Jon C. Giullian 《Slavic & East European Information Resources》2013,14(3):278-284
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
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Kelly Ahlfeld 《International Information and Library Review》2017,49(4):285-289
Chromebooks and the G Suite group of products, like Google Search, Gmail, and Google Docs, have rapidly expanded in American schools during the past 5 years. The impact of one-to-one Chromebook devices and the pervasive use of Google's software products in American education cannot be overstated. This article explores some of the influences of these products on research, based on the experiences of a librarian and technology coordinator at an elementary education level. The author has several suggestions for effective research with these products in mind. 相似文献
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《Behavioral & Social Sciences Librarian》2013,32(1):49-54
Library historians can learn a great deal from studying the gender of authorship and institutional affiliation of a scholarly journal. The focus of this study is to examine these two aspects of journal production in library history to see who is producing published research in this field. Twenty-three years of Libraries & Culture were chosen as the target volumes. The study reveals that more men than women published in library history as well as locating which institutions were represented. This type of information is usedful to the library historian engaged in the analysis of published scholarship, and more generally to scholars with an interest in patterns of literature production in fields closely related to the social and behavioral sciences. 相似文献
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《Slavic & East European Information Resources》2013,14(1):25-74
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
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《The Reference Librarian》2013,54(74):121-164
Summary Although the Internet provides access to a wealth of information, there is little, if any, control over the quality of that information. Side-by-side with reliable information, one finds disinformation, misinformation, and hoaxes. The authors of this paper discuss numerous examples of fabricated historical information on the Internet (ranging from denials of the Holocaust to personal vendettas), offer suggestions on how to evaluate websites, and argue that these fabrications can be incorporated into bibliographic instruction classes. 相似文献