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   426篇
  免费   21篇
  2020年   4篇
  2019年   10篇
  2018年   8篇
  2017年   13篇
  2016年   14篇
  2015年   12篇
  2014年   9篇
  2013年   136篇
  2012年   8篇
  2011年   7篇
  2010年   7篇
  2009年   9篇
  2008年   8篇
  2007年   7篇
  2006年   9篇
  2005年   6篇
  2004年   9篇
  2003年   8篇
  2002年   6篇
  2001年   6篇
  2000年   7篇
  1999年   6篇
  1998年   4篇
  1997年   7篇
  1995年   4篇
  1994年   6篇
  1993年   4篇
  1990年   4篇
  1989年   7篇
  1988年   2篇
  1987年   3篇
  1986年   9篇
  1985年   7篇
  1984年   5篇
  1983年   6篇
  1982年   5篇
  1981年   7篇
  1980年   4篇
  1979年   4篇
  1978年   7篇
  1977年   5篇
  1976年   5篇
  1975年   5篇
  1974年   4篇
  1973年   3篇
  1972年   4篇
  1970年   2篇
  1969年   3篇
  1968年   2篇
  1967年   2篇
排序方式: 共有447条查询结果,搜索用时 15 毫秒
61.
The concept of civil religion has been of considerable interest to students of American culture during recent decades. Little attention has been given, however, to regional variations in the practice of American civil religion. The purpose of this study is to explore basic patterns in the popular observance of the Bicentennial, as one possible approach to understanding the geography of American civil religion. The study is based on the register of Bicentennial events compiled by the American Revolution Bicentennial Administration during 1975 and 1976. Findings indicate that the strongest commitment to public celebration of the Bicentennial occurred in a large region reaching from the western prairie states across the Great Plains into the northern Rocky Mountains. This commitment was expressed both in the region's large number of Bicentennial events and in the distinctively celebrative quality of many of those events. Civil religion's prominence in this region probably reflects several factors: the importance of religion generally in providing a sense of community in a region characterized by cultural isolation; the effect of rural and small-town conformity and the influence of a regional culture that is closely tied to the traditional mainstream of American culture.  相似文献   
62.
Hannaford, Ivan. Race: The History of an Idea in the West. Washington, DC: The Woodrow Wilson Center Press, 1996. xvii + 448 pp. including chapter references and index. $19.95 paper.

Hoberman, John. Darwin's Athletes: How Sports Has Damaged Black America and Preserved the Myth of Race. New York: Houghton Miffin, 1997. xxvi + 341

Williams, Vernon J., Jr. Rethinking Race: Franz Boas and His Contemporaries. Lexington: University Press of Kentucky, 1996. ix +152 pp. including chapter references and index. $34.95 cloth.

Wolpoff, Milford and Rachel Caspari. Race and Human Evolution: A Fatal Attraction. New York: Simon and Schuster, 1997. 463 pp. including chapter references and index. $26.00 cloth.  相似文献   
63.
64.
65.
66.
67.
68.
Abstract

F EWER COLD WAR myths are more enduring in the United Kingdom than that of ‘Buster’ Crabb. In April 1956, Britain’s Secret Intelligence Service (SIS) coaxed Commander Lionel ‘Buster’ Crabb, a naval frogman from the Second World War, out of retirement to dive under the Soviet cruiser Ordzhonikidze, while it was docked in Portsmouth. It had brought the Soviet Premier Nikolai Bulganin and the First Secretary of the Communist Party, Nikita S. Khrushchev, to the United Kingdom on a state visit. The operation, routine by all accounts, ended in both personal and diplomatic failure. Fourteen months later, the decomposed body of a frogman washed up in Chichester harbour. Despite the British government’s hope that the discovery might be the end of the affair, it fired up the conspiracy theorists, who alleged that the body could not be Crabb’s; that, in fact, he had been kidnapped, taken to the Soviet Union, and renamed Korablev.1 The government did little to dispel such myths. A few days after Crabb’s disappearance, The Times succinctly summed up the situation: ‘official reticence about the activities which led to the death of Commander Crabb has caused much speculation.’2 Curiosity was further piqued a few days later when the prime minister, Sir Anthony Eden, stated m the house of commons on 9 May that ‘it would not be in the public interest to disclose the circumstances in which Commander Crabb is presumed to have met his death.’3  相似文献   
69.
Dermal denticles of two thelodont agnathans, Australolepis seddoni gen. et sp. nov., and a possible nikoliviid gen. et sp. indet. are described from the Gneudna Formation, a marine sequence of interbedded limestone and shale exposed on the eastern edge of the Carnarvon Basin, Western Australia. The age and significance of these new forms are discussed. The Gneudna Formation is Late Devonian, probably early Frasnian, which, if confirmed, makes these the youngest thelodonts known to date.  相似文献   
70.
Benson, R.B.J., Fitzgerald, E.M.G., Rich, T.H. & Vickers-Rich, P., 2013. Large freshwater plesiosaurian from the Cretaceous (Aptian) of Australia. Alcheringa 37, 1–6. ISSN 0311-5518

We report a large plesiosaurian tooth from the freshwater early–middle Aptian (Early Cretaceous) Eumeralla Formation of Victoria, Australia. This, combined with records of smaller plesiosaurian teeth with an alternative morphology, provides evidence for a multitaxic freshwater plesiosaurian assemblage. Dental and body size differences suggest ecological partitioning of sympatric freshwater plesiosaurians analogous to that in modern freshwater odontocete cetaceans. The evolutionarily plastic body plan of Plesiosauria may have facilitated niche differentiation and helped them to exclude ichthyosaurs from freshwater environments during the Mesozoic. However, confirmation of this hypothesis requires the discovery of more complete remains.

Roger B.J. Benson [roger.benson@earth.ox.ac.uk], Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX1 3AN, UK; Erich M.G. Fitzgerald [efitzgerald@museum.vic.gov.au], Thomas H. Rich [trich@museum.vic.gov.au], Museum Victoria, GPO Box 666, Melbourne, Victoria 3001, Australia; Thomas H. Rich and Patricia Vickers-Rich [pat.rich@monash.edu], School of Geosciences, Monash University, Clayton, Victoria 3800, Australia. Received 30.10.2012; revised 27.1.2013; accepted 31.1.2013.  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