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   173篇
  免费   6篇
  179篇
  2023年   1篇
  2020年   1篇
  2019年   7篇
  2018年   3篇
  2017年   7篇
  2016年   4篇
  2015年   3篇
  2014年   2篇
  2013年   59篇
  2012年   2篇
  2011年   9篇
  2010年   5篇
  2009年   7篇
  2008年   2篇
  2007年   9篇
  2006年   3篇
  2005年   2篇
  2004年   4篇
  1999年   1篇
  1998年   2篇
  1997年   4篇
  1996年   2篇
  1995年   2篇
  1993年   2篇
  1992年   4篇
  1987年   1篇
  1986年   2篇
  1985年   5篇
  1984年   1篇
  1983年   5篇
  1981年   1篇
  1979年   2篇
  1978年   1篇
  1976年   1篇
  1975年   2篇
  1974年   1篇
  1973年   1篇
  1972年   2篇
  1970年   1篇
  1968年   2篇
  1966年   1篇
  1960年   3篇
排序方式: 共有179条查询结果,搜索用时 0 毫秒
71.
72.
In one of the most notable studies on the political economy of the modern Atlantic world, Sidney W. Mintz (Mintz, Sweetness and power: the place of sugar in modern history. Penguin, London, 1985) explored the rise of sugar production in the Caribbean and emphasized Barbados’ role in shaping the trajectory of the sugar industry in the seventeenth century. Yet, while sugar was certainly the defining commodity of the Barbadian economy, not all of the island’s citizens were directly involved in the sugar production process. Residents of the island’s main urban center, Bridgetown, lived at the interface between producers of sugar on rural estates in Barbados and consumers of sugar in metropolitan Europe. They were the glue that held the emerging Atlantic sugar business together and their efforts to develop a functioning urban infrastructure in Barbados helped fuel the trade in this valuable commodity.  相似文献   
73.
Review     
Nature and Nurture: Aboriginal child-rearing in north-central Arnhem Land. By Annette Hamilton. Australian Institute of Aboriginal Studies, Canberra, 1981. Pp. 183, Appendix, Index. Price $9.95 (paper bound).  相似文献   
74.
Pollen from intestinal contents of mummies, backed by macrofloral analysis, provides important clues to diet, medicines, and season of death. Intestinal contents were recovered from the Piraino 1 mummy from the “Sepulcher of the Priests”, Piraino Mother Church, in the province of Messina, Sicily. Using standard palynological methods and pollen concentration technique, we quantified the numbers of pollen grains per gram of coprolite. The pollen spectrum was dominated by Polygalaceae, the Milkwort Family. Polygalaceae pollen is rarely found in archaeological sites. Based on comparison to published keys, we determined that the pollen came from a species of Polygala. Polygala contains species with medicinal value. We found nine other pollen types. Traces of Potamogeton (pondweed) was observed in preliminary scans. Multiple grains of Brassicaceae (mustard family), cereal (cultivated grains), Typha (cattail) and Cheno-am were found. Single grains of Castanea (chestnut), Fabaceae (bean family), Salix (willow), and Solanaceae (tomato family) were found. The preservation of the pollen was poor except for Polygala and the cereal pollen. Brassicaceae and Cheno-am have been part of the natural pollen spectrum in Sicily since ancient times. Cereal grains were consumed with prepared food. Importantly, background arboreal pollen was nearly absent. This indicates that Piraino 1 died during months of low pollination. The absence of olive pollen is important since this plant in Sicily reaches its maximum pollination in May and June and tapers off rapidly by mid-June. Therefore, absence of the key warm season airborne pollen type suggests a post-June death. Macrofossils, especially residue from grape pulp, indicates a death in September to November. His cause of death was likely a result of multiple myeloma. The methodological differences between archaeopalynology and forensic palynology are summarized. We suggest that the palynological methods presented here should be adopted for human remains analysis in forensic palynology.  相似文献   
75.
Molecular analysis of coprolites from Hinds Cave, Texas recovered chloroplast DNA sequences. The sequences were interpreted as evidence of diet. We analyzed 19 Hinds Cave coprolites to evaluate the potential sources of the chloroplast DNA (cpDNA) and compared our results to previous studies. This review shows that some cpDNA sequences could be from well-known prehistoric plants foods. Some other sequences could have come from ambient plant material in the guts of small animals eaten by humans in antiquity. Using pollen concentration analysis, we identify sources of ambient plant material which could have been inhaled or imbibed. It is even possible that cpDNA sequences are from proplastids within ambient pollen grains themselves. However, three sequence types cannot be explained as resulting from only dietary or ambient sources. We suggest instead that these might be from medicinal or hallucinogenic plants. We compared these three sequences to existing sequences in the GenBank. We found that these sequences are 100% matches for Rhamnus, Fouquieria, and Solanum.  相似文献   
76.
77.
78.
79.
An Imperial State at War: Britain from 1689 to 1815. Edited by Lawrence Stone (London: Routledge, 1994), 374 pp., £40.00 cloth.  相似文献   
80.
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