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   558篇
  免费   21篇
  2021年   2篇
  2020年   8篇
  2019年   17篇
  2018年   20篇
  2017年   19篇
  2016年   22篇
  2015年   12篇
  2014年   24篇
  2013年   145篇
  2012年   12篇
  2011年   14篇
  2010年   23篇
  2009年   10篇
  2008年   16篇
  2007年   13篇
  2006年   14篇
  2005年   12篇
  2004年   14篇
  2003年   6篇
  2002年   4篇
  2001年   7篇
  2000年   7篇
  1999年   7篇
  1998年   8篇
  1997年   8篇
  1996年   3篇
  1995年   4篇
  1994年   5篇
  1993年   6篇
  1992年   7篇
  1991年   8篇
  1989年   6篇
  1988年   7篇
  1987年   3篇
  1986年   8篇
  1985年   11篇
  1984年   10篇
  1983年   6篇
  1982年   5篇
  1981年   2篇
  1980年   7篇
  1979年   4篇
  1978年   5篇
  1977年   9篇
  1976年   2篇
  1975年   3篇
  1974年   2篇
  1972年   2篇
  1971年   2篇
  1970年   3篇
排序方式: 共有579条查询结果,搜索用时 265 毫秒
481.
482.
This paper is concerned with a society experiencing significant change, an industrializing society. Throughout the South Wales coalfield in the second half of the eighteenth century, rural structures were being supplanted by urban-industrial structures, traditional modes of landuse were being dislocated by new enterprises and the former pastoral landscape was being invaded by the paraphernalia of mining and manufacturing. The old cultural region, “Blaenau Morgannwg” was being transmuted into the new cultural region, “The Valleys”.More particularly, this industrializing society experienced a significant change in the attitudes of landowners to their estates and also a change in both the mechanisms and intensity of control. With the recognition of the opportunities for industrial development, many lords evinced an increased concern for the integrity of their manorial perquisites, particularly those related to minerals and their access to them. The assertion of neglected rights, the institution of rigorous estate management and the prosecution of previously neglected abuses constituted a dislocation of local landuse practices and traditional ways of life. To some extent, the experience was similar to that of other areas experiencing increased industrial activities at this time, although the effect of certain local cultural influences may be recognized in the particulars of the response.The specific focus of this study is on the important roles which manorial wastes were to play in these new industrial enterprises. Whereas in the past the wastes had been but peripheral elements of the total estate economy, the industrial demand for minerals, fuel and land occasioned a radical reappraisal of their contribution. Many studies have considered encroachments and enclosure in the context of agricultural systems but it is argued here that in certain parts of Britain, industrial considerations were of paramount importance. The primary challenge to the very existence of manorial wastes and commons, the Enclosure Movement, was contemporaneous with the initial stages of the industrialization of this region. But rather than expediting the elimination of these lands, several factors caused manorial wastelands and commons to bulk large in the early industrialization of the South Wales coalfield.The purpose of this paper, therefore, is to attempt a better understanding of the impact of industrialization upon the wastelands of the South Wales coalfield and of the society formerly dependent upon them. Particular attention will be focused upon the way in which this process affected the attitudes of the various interested parties towards mineral rights, encroachments and parliamentary enclosure, and which in turn required reappraisals of a way of life by an old social order.  相似文献   
483.
484.
485.
486.
This study describes the results of an experiment involving the consumption of a skinned, eviscerated, and segmented insectivore by an adult human male. Bone remains from recovered faecal contents are examined for skeletal element representation, breakage and digestive damage. Detailed examination of each category suggests severe skeletal attrition which is comparable to, and at times in excess of, the damage exhibited in microvertebrate skeletal accumulations originating from the scats of small mammalian carnivores.  相似文献   
487.
488.
489.
490.
In contrast with conventional formulations of urban growth, Tolley proposed a simple, supply-driven model relying upon the intersectoral differential in nonlabor productivity growth as the prime motivator of urbanization in developing countries. In the present paper, we apply Tolley's model to India over the period 1951–1981 and attempt to explain its mixed performance in tracking the pace of urbanization in that country. A modified version, adjusted for inter-regional migration, is then simulated for individual Indian states; the exercise confirms actual urban growth during 1971–81 to have been generally below that predicted by Tolley's model. Tolley's assumptions then are tested through an examination of the relationship between urban growth rates and translog indexes of intertemporal productivity growth. Finally, exploratory analysis of Tolley-model deviations in the various states is used to suggest directions for extending urban growth formulations for India. We conclude with a normative examination of policy implications.  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