首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   4631篇
  免费   54篇
  国内免费   10篇
教育   3454篇
科学研究   252篇
各国文化   43篇
体育   413篇
综合类   3篇
文化理论   63篇
信息传播   467篇
  2022年   28篇
  2021年   47篇
  2020年   63篇
  2019年   115篇
  2018年   144篇
  2017年   156篇
  2016年   151篇
  2015年   101篇
  2014年   121篇
  2013年   949篇
  2012年   137篇
  2011年   130篇
  2010年   152篇
  2009年   138篇
  2008年   148篇
  2007年   144篇
  2006年   114篇
  2005年   95篇
  2004年   100篇
  2003年   84篇
  2002年   96篇
  2001年   66篇
  2000年   107篇
  1999年   74篇
  1998年   74篇
  1997年   63篇
  1996年   73篇
  1995年   57篇
  1994年   67篇
  1993年   63篇
  1992年   49篇
  1991年   70篇
  1990年   51篇
  1989年   47篇
  1988年   37篇
  1987年   45篇
  1986年   45篇
  1985年   43篇
  1984年   47篇
  1983年   39篇
  1982年   31篇
  1981年   35篇
  1980年   30篇
  1979年   24篇
  1978年   32篇
  1977年   38篇
  1976年   27篇
  1975年   22篇
  1974年   23篇
  1972年   14篇
排序方式: 共有4695条查询结果,搜索用时 11 毫秒
51.
The primary aim was to examine the criterion and construct validity and test–retest reliability of the Lifesource XL-18 pedometer (A&D Medical, Toronto, ON, Canada) for measuring steps under controlled and free-living activities. The influence of body mass index, waist size and walking speed on the criterion validity of XL-18 was also explored. Forty adults (35–74 years) performed a 6-min walk test in the controlled condition, and the criterion validity of XL-18 was assessed by comparing it to steps counted manually. Thirty-five adults participated in the free-living condition and the construct validity of XL-18 was assessed by comparing it to Yamax SW-200 (YAMAX Health & Sports, Inc., San Antonio, TX, USA). During the controlled condition, XL-18 did not significantly differ from criterion (P > 0.05) and no systematic error was found using Bland–Altman analysis. The accuracy of XL-18 decreased with slower walking speed (P = 0.001). During the free-living condition, Bland–Altman analysis revealed that XL-18 overestimated daily steps by 327 ± 118 than Yamax (P = 0.004). However, the absolute percent error (APE) (6.5 ± 0.58%) was still within an acceptable range. XL-18 did not differ statistically between pant pockets. XL-18 is suitable for measuring steps in controlled and free-living conditions. However, caution may be required when interpreting the steps recorded under slower speeds and free-living conditions.  相似文献   
52.
53.
54.
The most granular level at which COUNTER currently requires reporting of usage is for the individual journal. A number of developments have, however, meant that it is now practical to investigate the development of a COUNTER standard for the recording, reporting, and consolidation of usage statistics at the individual article level. The aim of PIRUS2 (Publisher and Institutional Repository Usage Statistics 2) was to take forward the outcomes of the original PIRUS project and build on its recommendations, by developing a prototype service (including technical, organizational, and economic models) that will enable publishers, repositories, and other organizations to generate and share authoritative, trustworthy usage statistics for the individual articles and other items that they host. The PIRUS2 project was completed in June 2011. This article covers the aims, objectives, outputs and recommendations of the project.  相似文献   
55.
Alcohol use during pregnancy poses a significant risk of fetal alcohol syndrome. This study presents the interpretive findings of the formative research phase of a funded grant to develop a community‐based public health media campaign on the topic of drinking during pregnancy. In the initial wave of data collection, 50 rural women were recruited from four Women, Infants, and Children (WIC) clinics in southeastern Iowa to participate in semi‐structured interviews. In the second wave, 10 additional WIC clients were interviewed for member‐checking purposes. Findings revealed two competing discourses that organized these women's attitudes, beliefs, and behaviors surrounding drinking and pregnancy: the discourse of individualism and the discourse of responsible motherhood. These two discourses offer opposing normative guidelines for talk among their close female relatives and friends. The implications of these findings for designing a community‐based media campaign are discussed.  相似文献   
56.
This paper reviews events of SSP 2013 and AAUP 2013 within the context of Nassim Nicholas Taleb's notions of Black Swans (unexpected game changers) to anticipate the formation of competitive arenas (i.e. new models and revenue streams) for scholarly communications. It examines Tim O'Reilly's keynote address at SSP 2013, the advice of Michael Schrage from the opening Plenary at AAUP 2013, and Tim Sullivan's discussion of Harvard Business Publication's use of a topical blog network as new publishing platform to access global digital communications networks. The essay extrapolates from the case studies presented to overlay the strategies of successful practitioner presses and the advice of sought‐after business consultants on the work of academic houses, to imagine the next competitive frontier(s) in scholarly publishing.  相似文献   
57.
In the early 19th century, public libraries in America tended toward grand appearances befitting seriousness of purpose. Library design changed gradually throughout the 20th and 21st centuries, and more dramatically with automation and new technology. True to its roots, the public library continues to maintain areas for quiet, individual study. But, in addition, today’s library has become a cultural center in the community, offering art galleries, auditoriums, meeting rooms, spaces for collaborative work, digital information and instruction, and even cafés. Change is inevitable, as innovations in library design and patron use illustrate. Yet, from the earliest libraries to modern times, one overarching constant defines their purpose: libraries inspire.  相似文献   
58.
MBA program curriculums have been the target of criticism since the financial scandals of the early 2000s, with the main focus being that many programs sacrificed the teaching of useful, real world skills in favor of impractical scientific research, while also neglecting areas such as ethics and social responsibility. The financial collapse prompted many MBA programs to implement reforms which include adding experiential learning programs among other changes. These reforms provide opportunities for librarians to introduce or increase information literacy components in the programs. The current state of MBA information literacy practices is discussed, with several initiatives highlighted and some new approaches suggested.  相似文献   
59.
Humiliation and self-ridicule worked as surprisingly important tools of evangelical outreach in the first decades of the Franciscan Order (c.1210–50). According to early Franciscan texts such as the Assisi Compilation (c.1240s) and Jordan of Giano’s Chronica (c.1260), St Francis and his earliest followers sought to win supporters by stripping naked in public, mocking learned preachers and ludicrously imitating animals. Yet within a few decades of the founder’s death this type of humour had been erased from Franciscan texts. Chronicles now omitted references to Francis’s laughter, while humiliating behaviour came to be condemned by Franciscan preachers, chroniclers and theologians alike. From being a means of undermining dignity and reason, joking was now instead celebrated as a tool of upholding these very same values. Describing the nature of this shift, and contextualising it within the evolving institutional priorities of the Franciscans under the leadership of Bonaventure (d.1274), this article will complicate debates about the development of medieval humour, while also reflecting on laughter’s role as a means of resistance to the significant social and cultural upheavals of the 1200s.  相似文献   
60.
Book reviews     
cAbd al‐Malik b. Habib. Kitāb al‐Ta'rij (La historia). Edición y estudio por Jorge Aguadé. Madrid: Consejo Superior de Investigaciones Científicas & Instituto de Cooperación con el Mundo Arabe, 1991 (Fuentes Arabico‐Hispanas, 1). 163 + 224 pp. [Arabic title: Kltāb al‐Ta'tikh]

Kedar, Benjamin Z., ed. The Horns of Hattin. Jerusalem and London: Yad Izhak Ben‐Zvi, Israel Exploration Society and Variorum 1992. 368 pp., 12 plates; $74.75 (cloth).

Köprülü, Mehmed Fuad. The Seljuks of Anatolia: Their History and Culture According to Local Muslim Sources. Translated and edited by Gary Leiser. Salt Lake City: University of Utah, 1992. xi +101 pp., $22.00 (cloth).

Cameron, Averil and Conrad, Lawrence I., eds. The Byzantine and Early Islamic Near East: Problems in the Literary Source Material (Papers in the First Workshop on Late Antiquity and Early Islam). Princeton: The Darwin Press, 1992. xiv + 428pp., 12 plates; $29.25 (cloth).

Vereno, Ingolf. Studien zum ältesten alchemistischen Schrifttum. Berlin: Klaus Schwarz Verlag, 1992 (Islamkundliche Untersuchungen, 155). 414pp.

Tolan, John. Petrus Alfonsi and his Medieval Readers. Gainesville, Florida: University Press of Florida, 1993. xv + 288pp., $34.95 (cloth), $16.95 (paper).

Lassner, Jacob. Demonizing the Queen of Sheba: Boundaries of Gender and Culture in Postbiblical Judaism and Medieval Islam. Chicago: University of Chicago, 1994. 281 pp., $19.95 (paper), $49.95 (cloth).

Menocal, María Rosa. Shards of Love: Exile and the Origins of the Lyric. Durham, North Carolina: Duke University Press, 1994. xv + 295pp., $34.95 (cloth), $14.95 (paper).

Massignon, Louis. The Passion of al‐Hallāj, Mystic and Martyr of Islam. Translated and edited by Herbert Mason. Abridged edition, Bollingen Series XCVIII. Princeton: Princeton University Press, 1994. xxxi + 293pp.

Viguera Molins, Maria Jesús. El Islam en Aragón. Saragossa: Caja de Ahorros de la Inmaculada, 1995 (Colección “Mariano de Pano y Ruata”, 9), 174 pp., 182 ills. in colour, maps, diagrams, charts etc No price stated.  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