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数学很好玩,数学很漂亮,在数学家眼里,数学就像一位恋人……
数学家大会上,一位位数学大师用洋溢着激情的字眼描绘数学,但数学真的那么美吗？对于大多数初中生来说,他们都感受不到数学的魅力。现在,初中生对学习数学缺乏兴趣,花的力气不少,但成绩并不好,数学成了学习的负担,另外,初中生的思维往往是被动的,发散的,容易受阻的,此外,教师水平不齐整,教的不够活的原因等等,因此,数学并不枯燥, 相似文献
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《新闻战线》1989,(2)
在关系到改革成败的关键时刻,我们决不能倒退,倒退是没有出路的。我们只能横下一条心,坚持改革到底。就整个现代化进程来说,没有挫折,没有风险,没有失误,没有种种消极的现象,要求一帆风顺取得成功,这只能是一个理想化的要求,实际上是做不到的。因此,我们要充分发挥政治优势,组织、动员全体人民,同心同德,艰苦奋斗,去争取改革、开放和现代化建设的胜利。这就是我们今天的大局。新闻事业就要服从这个大局,服务于这个大局。我们一个10亿人口的国家,要励精图治,奔向现代化,没有强大的新闻舆论的支持,是不可思议的。改革越是深入,就越是需要新闻舆论界的理解和支持。我们相信并期待新闻界的同志们,能够正确把握历史发展的大趋势,深刻地认识我国国情,深刻理解国家大局,民族的大局,深刻理解自身担负的重要责任,继承和 相似文献
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从微观上思考,一本书的出版,乃至一个出版社的发展,编辑者、经营者的作用是重要的,有努力,便有收获,理所当然应重视发挥主观能动性,另一方面,如果宏观地考虑问题,整个出版业的走向如何,不能不把它置于全社会的背景前,具体的局部的搏击,仅可能从量上影响态势,改善现况。上述两种思考,都不可缺少。现在,大家都在讲出版业的“危机”,並热切盼望出版业全力奋斗,走出“低谷”,这对搞出版的人是激励、鞭策。然而,“低谷”, 相似文献
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丁涛的名字,实际是播音艺术家对自身播音艺术事业的涵概和说明。他本名张玉贵,避了俗气,自取丁涛。丁者,小也。涛者,涌也。仅凭这名字,就可以看到奔腾的形象,又可以听到奋进的声音,——那么的风景无边,意境无穷,真是漫天大海,沿着曲曲弯弯的海岸,意无反顾地穿行,从早到晚,总也没有个间歇。 就是这“方寸之土”,把世界揽进自己怀里,又把自己交给了世界。日复一日,年复一年,在太空中打发岁月。三十多次桃花开谢,三十多次莲藕出泥,三十多次桐叶铺地,三十多次大雪纷飞,他都在向世人诉说大地的情怀,星月的妩媚,花草的芬芳,还有那凄凄怜怜哀哀悲悲的故事。 听得次数太多了,于是,丁涛的名字也就记在心里了。 走遍陕西黄土,甚至湖北、成都、河西走廊、山西太原、洛阳郑州,人都知道陕西有个丁涛,丁涛有副好嗓音,大凡荒漠风沙,小桥流水,坊上人家,华灯仪表,全从他的空中舞台传了出来,很是受用。 许多荡人胸怀的新闻,情真意切的通讯,潺潺流水的散文,如汔如诉的诗章,也都是他送到了田野,送到了床边,送到了母亲缝补衣裳的灯下。 确切地说,我不认识丁涛。但他播过我的散文《醉 相似文献
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《庐山》,是风光片,更是文化片,应该说是一部风光文化片。这部十二集专题电视系列片,从各个不同的侧面,把庐山的山,庐山的雾,庐山的洞,庐山的湖,庐山的城,庐山的路,庐山的石头,庐山的瀑布,庐山的天鹅,庐山的日出,把诡谲神奇的自然美,如诗如画地展现在我们的面前,令人神怡,更令人神往。 相似文献
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通讯报道的题材一经选定,主题就形成。这只是初步形成的主题,不是通讯要表现的主题。通讯所表现的主题,需要作者在构思中艰苦思索,予以深化,最后确定。 这是因为,初步形成的主题一般是由作者接触题材的表面所得到的。任何题材,当它以自然存在的时候,同生活的表层有多种多样的联系。单纯和芜杂的现象,伟大和渺小的现象,精深和浅薄的现象,主要和次要的现象就集于一身。有的题材,表面呈现出来的可能是芜杂的,渺小的,浅薄的,次要的现象,如果作者只注意题材的表面现象,满足于对于初步形成主题的一般把握,那么,通讯的主题就一般化。有时,把复盖在题材表面的假象当真相,所形成的主题可能歪曲生活的本质。 相似文献
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《新闻天地》2003,(8)
当孤独的人生之旅走过生命的正午,如火的太阳灸烤着青春的脊背,向前眺望,那梦幻的巅峰仍遥遥无期,空蒙的远方一片迷茫,严寒酷暑,年复一年,那追梦的脚步疲惫了,奔放的热血平静了。蓦然回首,人生的四十年过去了。岁月的沟回,年轮般刻上青春的额角,那飘飞的黑发,让片片初霜飞落鬓角。哦,是谁,站在四十岁的伤感之野,面对苍穹点燃一支心香,遥记那掀去的四十年。那是诗与梦,笑与泪的四十年。梦幻的花朵缤纷绽放,青春的脚步步步生莲。回忆的宫殿里,到处是红帆船,蓝仙子和芝麻开门。在尘世的众生中,青春的头颅高高昂起;在岁月的激流里,年轻的臂膀逆流而上。未来的君主,梦幻的帝王,以青春为骄傲,把明天当作希望。在那流光溢彩的年华里,是谁,忘了把心中回荡的旋律谱成美丽的青春之歌,是谁啊,站在红烟绿雾的岁月河畔,却没有留下一幅人生的画图。回首青春,渺如蔚蓝的天空,美丽,而一无所有。岁月,象蛀虫一样噬咬着人的奋斗意志,泯灭着理想的火焰,偶然一天,当你走进从未去过的医院,竟一住就是四十天。你才知道,生命是如此脆弱。当你在牌桌上耗费一个又一个通宵而不能罢时,你才知道,生命的惰性是如此深重。当青云直上的童年好友面对你急切的请求冷冷一笑,你才知道,什么是世态炎凉。青春的明天就是这些吗?怎能料到,爱情的挫折,疾病的纠缠,生活的变故,人世的暗箭,更有生命的惰性和生活的负担。这一切,如一把把锋利的刀刃,削去青春 相似文献
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《The Journal of Academic Librarianship》2023,49(4):102721
Planning a conference at the best of times is intense. Add in a lingering pandemic and the first attempt at a hybrid conference then planning a conference can become extremely stressful. Selecting sessions for a conference can fall under the responsibilities of librarians contributing to the profession and completing service requirements. This paper maps the research, creation, and implementation of a rubric to guide the evaluation of session proposals for a technical services library conference and the creation of a webpage to inform those thinking of submitting a proposal. The deliverables were a page added to the organization website and a rubric. 相似文献
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How are libraries used as meeting places, and by whom? Through survey data, six categories of places are identified: the library as a “square,” as a place for meeting diverse people, as a public sphere, as a place for joint activities with friends and colleagues, as a metameeting place, and as a place for virtual meetings. Representative samples of the population in three townships in Oslo, each with a markedly different demographic profile, are surveyed. Multivariate regression analyses are performed to analyze why some people use the library for a range of meetings and others do not, as well as to examine variations in the use of the library for different kinds of meetings. Public libraries are shown to be used for a variety of meetings. Community involvement is more important than township and demographic variables in explaining variations in use of the library as a meeting place. Correlations between low income and low education and high use of the library as a meeting place were found, indicating that the library as a meeting place plays a substantial role in equalizing the possibilities of being an active citizen across social and economic differences. The study contributes to understanding the role of the public library in a multicultural context. The public library as a unique and complex meeting place has important implications for future librarianship. 相似文献
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融洽的编者和作者关系促进双方的心理平衡、尊重、理解和认同,彼此间起激励作用;心理契约遭到破坏,编者和作者间产生失望、挫折和欺凌感,影响编者工作积极性和作者信任,甚至产生懈怠、报复或不端行为。本文基于心理契约,从微观视角,探讨编者和作者信任关系的构建与承诺履行机制,分析彼此间心理期望的内容、心理契约违背的感知、违背的危害及基于心理契约的编者和作者关系优化策略。 相似文献
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Wendy Su 《Critical Studies in Media Communication》2017,34(5):480-494
The unprecedented growth in U.S.-China film coproductions and Chinese companies’ high-profile investment in Hollywood studios and U.S. cinemas signal a shift in global power relationships and a reshaping of the global media structure. Combining textual and document analysis with interviews of policy makers and film professionals in China and Hollywood, this article explores the implications of U.S.-China coproduction for global communication. The article proposes three ways of understanding coproductions: as a market-driven and profit-seeking partnership, as a policy and power negotiation, and as a brave experimental adventure. This article contends that the current state of U.S.-China coproduction manifests the contradiction between desire and reality. Although coproductions have the potential to create a space for a new global culture, to develop innovative communication models, and to achieve a China-U.S. consensus, the fulfillment of these potentials will require a steadfast effort and the commitment of more than one generation of filmmakers from both China and the U.S.A. Nevertheless, a global culture and a reshaping of the global media structure are in the making. 相似文献
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Measuring Search Engine Quality 总被引：12，自引：3，他引：9
The effectiveness of twenty public search engines is evaluated using TREC-inspired methods and a set of 54 queries taken from real Web search logs. The World Wide Web is taken as the test collection and a combination of crawler and text retrieval system is evaluated. The engines are compared on a range of measures derivable from binary relevance judgments of the first seven live results returned. Statistical testing reveals a significant difference between engines and high intercorrelations between measures. Surprisingly, given the dynamic nature of the Web and the time elapsed, there is also a high correlation between results of this study and a previous study by Gordon and Pathak. For nearly all engines, there is a gradual decline in precision at increasing cutoff after some initial fluctuation. Performance of the engines as a group is found to be inferior to the group of participants in the TREC-8 Large Web task, although the best engines approach the median of those systems. Shortcomings of current Web search evaluation methodology are identified and recommendations are made for future improvements. In particular, the present study and its predecessors deal with queries which are assumed to derive from a need to find a selection of documents relevant to a topic. By contrast, real Web search reflects a range of other information need types which require different judging and different measures. 相似文献
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结合我国社会主义新农村建设中存在的问题,主张使科技期刊智库、桥梁、转化器的社会功能达到进一步开发与拓展,在科技推广中扮演裁判、教练、媒人角色,当好“龙头”,培养新型农民,以技术链延伸产业链和价值链,形成资源节约型、环境友好型农村技术体,提升我国农业强国的地位。 相似文献
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Nathan Stormer 《Critical Studies in Media Communication》2013,30(3):212-240
Mass representations of the sublime use apostrophe as a mode of address that normalizes a moment of expected failure of discourse. Regardless of whether a viewer experiences “sublimity,” mass representations of what is supposedly beyond discourse embody the expected limits of communication, aestheticizing conditions of impossibility for discourse, and thereby constituting a space wherein the humanist subject may become a recognizable self in a public sense. Constituting a relationship between the spectator as human and the sublime objects as greater than human, a mass reproduced sublime thus helps establish discursive spaces of humanism. Although the aesthetics of the sublime can be exceptionally varied, the essay applies these ideas to popular Ansel Adams photographs, which illustrate the problems of attempting to represent the unrepresentable and the invocation of a particular kind of subjectivity as a commonplace. 相似文献
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Angela P. Branyon 《Public Library Quarterly》2017,36(3):185-198
This phenomenological study examines the unique perceptions of immigrant women concerning the public library as a meeting place, a support to integration into American culture, and a provider of programs for acquisition of the English language. The library offers a place for observing the culture of the new country from a distance to active participation; it is an arena for comfort and consolation in a difficult life situation as well as an arena for activity and participation. It provides support in developing friendships, acclimating to a new culture, learning a new language, and providing avenues to employment. Three mothers, who fulfilled the criteria for the study, were selected from an initial focus group. Women from Kurdistan, Mexico, and Indonesia were interviewed individually to gain an understanding on the issues brought forth in the focus group. They participated in interviews over the course of 6 months. These programs became a fortuitous blending of an established community with a group of families looking for a support community in a new country. This study has implications for institutions serving immigrants as they look to find a community of support, to learn English, and to acclimate to American culture as they create a comfortable identity that blends their home country with the new country. 相似文献
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《广播与电子媒介杂志》2013,57(4):703-722
A scene is proposed as the unit of analysis in broadcast news studies as a way to measure a more accurate representation of perspectives and arguments of a story. Based on film studies, a scene is defined as a unit that represents continuity in time, place, character, ideas, or themes in a news story. The role of a scene in a news story is analyzed by examining how the position, length, and proportion of a scene frame and valence are related to story frame and valence. 相似文献