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   520篇
  免费   16篇
  2021年   4篇
  2020年   7篇
  2019年   12篇
  2018年   18篇
  2017年   17篇
  2016年   20篇
  2015年   14篇
  2014年   12篇
  2013年   142篇
  2012年   12篇
  2011年   9篇
  2010年   15篇
  2009年   10篇
  2008年   11篇
  2007年   9篇
  2006年   5篇
  2005年   10篇
  2004年   12篇
  2003年   11篇
  2002年   7篇
  2001年   10篇
  2000年   10篇
  1999年   6篇
  1998年   10篇
  1997年   5篇
  1995年   6篇
  1994年   5篇
  1993年   7篇
  1992年   3篇
  1990年   4篇
  1989年   3篇
  1988年   2篇
  1987年   6篇
  1986年   3篇
  1985年   6篇
  1984年   7篇
  1983年   11篇
  1982年   9篇
  1981年   4篇
  1980年   3篇
  1979年   6篇
  1978年   9篇
  1977年   11篇
  1976年   4篇
  1975年   7篇
  1974年   3篇
  1971年   5篇
  1970年   2篇
  1969年   3篇
  1968年   2篇
排序方式: 共有536条查询结果,搜索用时 15 毫秒
191.
Macphail, M.K. & Partridge, A.D., June 2012. First fossil pollen record of Auriculiidites Elsik, 1964 Elsik, W. C. 1964. A new sporomorph genus from eastern Peru. Pollen et Spores, 6: 601604.  [Google Scholar] in Australia. Alcheringa 36, 283–286. ISSN 0311-5518.

Fossil auriculate pollen assigned to Auriculiidites Elsik is preserved in middle early Eocene estuarine facies near Strahan, on the west coast of Tasmania. This is the first record of this otherwise Late Cretaceous–Paleocene morphogenus in Australia and possibly the Southern Hemisphere. Auriculiidites is one of several, now tropical, taxa found at Strahan and underscores the area's importance in understanding the impact of early Eocene global warming at high latitudes.

Mike Macphail [mike.macphail@anu.edu.au], Department of Archaeology & Natural History, College of Asia and the Pacific, Australian National University, ACT 0200, Australia; Alan D. Partridge, Biostrata Pty. Ltd. 302 Waiora Rd., Macleod, Victoria 3085, Australia. Received 28.8.2011, revised 5.2.2012, accepted 16.2.2012.  相似文献   
192.
Two senior World Bank economists provide a broad comparative overview of transition economies, covering the former Soviet Union, East Central Europe, China, and Vietnam. In the process, they assess the experience of each of the 20 European and 8 Asian countries up to 1996, focusing on the wide variation in exposure to economic and political liberalization and distinguishing growing and recovering economies from the lagging. Based on recent measures of key macroeconomic indicators, the authors' classification and analysis embrace the impact of specific factors (e.g., different duration and intensity of reforms; exposure to regional tensions) on economic growth and inflation. Also included in the study is a comparison of inter-industry linkages and macroeconomic feedback in Russia and China. 9 figures, 8 tables, 25 references. Journal of Economic Literature, Classification Numbers: P21, P41, P51, P52.  相似文献   
193.
This article1 1. The authors wish to acknowledge the support of their respective home institutions—the University of Sydney and San José State University, as well as Stanford University (where Dr Reckmeyer served as a Visiting Professor with the Center for International Security and Cooperation in 2009–10)—for the necessary time and funds to conduct this study. View all notes reviews the seminal influences on Australian national security planning and outlines a methodology for assessing national security risk which provides a workable analytical framework for prioritising Australia's national security challenges and allocating scarce resources in a systematic and integrated way. The authors argue for a System of Systems approach that addresses the most serious security challenges as a whole rather than treating them as independent, compartmentalised issues. The ability to develop effective analytical tools for assessing national security risk will be a key determinant of strategic success in the twenty-first century. Nations adept at anticipating developments, discerning trends and evaluating risk among the clutter of confusing and contradictory change indicators will be significantly advantaged over those which are not.  相似文献   
194.
195.
196.
In the middle of the twentieth century psychiatry underwent a transition that is often referred to as the “psychopharmacology revolution.” Implicit in the term revolution is the idea that a paradigm shift occurred. Specifically, it has been argued that psychiatry abandoned the psychoanalytic paradigm in favor of a qualitatively distinct conceptual system based on brain chemistry. The validity of this view requires that psychoanalysis had the status of a paradigm. This paper presents evidence that psychoanalysis did not constitute a paradigm and that the advent of psychopharmacology was not, technically, a scientific revolution. Instead, the rise of modern psychopharmacology was the culmination of a linear growth of biological knowledge that began to develop in the nineteenth century.  相似文献   
197.
Gino Bedani, Politics and Ideology in the Italian Workers’ Movement: Union Development and the Changing Role of the Catholic and Communist Subcultures in Postwar Italy, Berg, Oxford, 1995, xiv + 365 pp., ISBN 0–85496–827‐X, £44.95.

Anna Bull and Paul Corner, From Peasant to Entrepreneur. The Survival of the Family Economy in Italy, Berg, Oxford, 1993, ix + 174 pp., ISBN 0–85496–309‐X, £29.95.

Daniela Luigia Caglioti, Il guadagno difficile. Commercianti napoletani nella seconda metà dell'Ottocento, Ricerca, Il Mulino, Bologna, 1994, 272 pp., ISBN 88–15–04755–7, 36,000 Lire.

Salvatore Casillo and Vincenzo Moretti, False imprese e falsi imprenditori. Dall'industria fantasma allo sviluppo delle aree terremotate nel Mezzogiorno, Koinè, Rome, 1993, 258 pp., 28,000 Lire.

Christopher Duggan, A Concise History of Italy, Cambridge University Press, Cambridge, 1994, xiv + 320 pp., ISBN 0–521–40285–9, £25 hbk, ISBN 0–521–40848–2, £8.95 pbk.

Diego Gambetta, The Sicilian Mafia. The Business of Private Protection, Harvard University Press, Cambridge Mass., 1993, 335 pp., ISBN 0–674–80741–3, £24.95 hbk.

Stefano Zamagni (ed.), Mercati illegaliemafie. L'economia delcrimine organizzato, II Mulino, Bologna, 1993, 410 pp., ISBN 88–15–04159–1, 50,000 Lire.

Marco Giusti and Alberto Piccinini, Ambra, Nuova ERI, Turin, 1994, 121 pp., ISBN 88–397–0902–9, 18,000 Lire.

Antonio Gramsci, Pre‐Prison Writings, edited by Richard Bellamy, translated by Virginia Cox, Cambridge University Press, Cambridge, 1994, 350 pp., ISBN 0–521–41143–2 hbk, £40.00, 0–521–42307–4 pbk, £10.95.

Richard M. Locke, Remaking the Italian Economy, Cornell University Press, Ithaca, NY, 1995, xiii + 232 pp., ISBN 0–8014–2221–3, £23.50.

Luisa Passerini, Mussolini immaginario, Laterza, Bari, 1991, 290 pp., ISBN 88–420–3738–9, 45,000 Lire.

Gian Franco Pompei, Un Ambasciatore in Vaticano. Diario, 1969–1977, a cura di Pietro Scoppola, Il Mulino, Bologna, 1994, 604 pp., ISBN 88–15–04317–9, 60,000 Lire.

Lucy Riall, The Italian Risorgimento. State, Society and National Unification, Routledge, London, 1994, 101 pp., ISBN 0–415–05775–2.

Salvatore Vassallo, Il governo di partito in Italia (1943–93), Il Mulino, Bologna, 1994, 324 pp., ISBN 88–15–04589–9, 42,000 Lire.  相似文献   
198.
199.
ABSTRACT

Tourism can be potentially disruptive for the recipient communities; particularly for residents who do not directly benefit from the spending of tourists. To this end in the 1970s George Doxey derived an ‘irridex’, and this is assessed in this paper in the Manx context. The Isle of man Tourist Trophy Motorcycle Races involve road closures and are potentially disruptive to the lives of many residents. Survey results show that Manx residents do not, however, find the races unacceptably disruptive or intrusive. As such, questions are raised on the nature of environmentally disruptive tourism.  相似文献   
200.
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