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   499篇
  免费   31篇
  2023年   6篇
  2022年   4篇
  2021年   5篇
  2020年   20篇
  2019年   18篇
  2018年   29篇
  2017年   34篇
  2016年   31篇
  2015年   22篇
  2014年   12篇
  2013年   76篇
  2012年   33篇
  2011年   15篇
  2010年   32篇
  2009年   19篇
  2008年   26篇
  2007年   18篇
  2006年   17篇
  2005年   22篇
  2004年   10篇
  2003年   18篇
  2002年   11篇
  2001年   14篇
  2000年   7篇
  1999年   6篇
  1998年   3篇
  1997年   3篇
  1996年   2篇
  1995年   3篇
  1994年   2篇
  1993年   1篇
  1992年   3篇
  1991年   3篇
  1985年   2篇
  1983年   2篇
  1978年   1篇
排序方式: 共有530条查询结果,搜索用时 15 毫秒
61.
The discovery of a Late Bronze Age trading vessel at Uluburun near Ka? off the Turkish coast offers exciting possibilities for our understanding of Bronze Age trade. On board the ship was a large consignment of glass ingots that were assumed to originate either from Mesopotamia or Egypt. This paper presents the results of major and trace elemental analyses of three deep blue and turquoise glass ingots from the Uluburun wreck, and for the first time securely demonstrates that their composition is consistent with an Egyptian origin. The compositional similarity of the glass ingots to glasses from the Mycenaean world suggests that Egypt was exporting to that region via trading ships such as that from Uluburun.  相似文献   
62.
We report analytical work undertaken in order to identify the geochemical taphonomy of the osteological collection (human and animal bones) recovered from a 1950s excavation at Katsambas, a small cavity in the marly limestone on the west bank of Kairatos River, Crete. The site had funerary use and yielded material of Neolithic and Minoan age with poor stratigraphical association. Disintegration of provenance labels from bags has introduced further uncertainty about the contexts of recovery. Samples of human and animal bones that macroscopically appear to belong to three taphonomic categories were studied by means of FT-IR spectroscopy, TEM microscopy and REE analysis to explore the taphonomical processes the bones have undergone. Although not novel in palaeontological research the use of REE opens a new path to investigating poorly provenanced osteological collections from old excavations. Such geochemical work offers a proxy to their relative dating through the evaluation of the time span bones have remained in the sediments and their respective taphonomic histories.  相似文献   
63.
Bibliometric analysis of osteoarchaeology publications covering the period 2001–2007 in leading journals was carried out. The aims were two‐fold: firstly, to characterise research in this field in the UK and make comparisons with selected other countries, and secondly, to shed light on the use of skeletal collections. It was found that, since a previous survey of this type,covering the period 1991–1995, isotopic and DNA studies have increased. In the UK, work on biodistance studies is minor compared with other countries, and the proportion of palaeopathology work is high. In palaeopathology, substantial effort continues to be devoted to case studies, particularly in the UK where the frequency of problem‐orientated work directed at understanding earlier populations has not increased since the early 1990s. Although it is argued that the case study still has a place in osteoarchaeology, the balance of work needs to shift further in favour of population studies, particularly in the UK. Skeletal collections are vital for primary osteoarchaeological work, and there was little evidence for any great use of skeletal databases such as the Standard Osteological Database. Skeletal collections from the UK were the most used for the research papers analysed, demonstrating the importance of UK‐held collections for research that leads to high profile publication in the international scientific literature. These observations are pertinent since legal, ethical and practical issues in the treatment of human remains, particularly those connected with retention of skeletal collections, are now coming under closer scrutiny in the UK. Copyright © 2008 John Wiley & Sons, Ltd.  相似文献   
64.
张敏  黄贤金  张捷  姚磊 《人文地理》2012,27(3):147-151
本文梳理了南京大学人文地理研究机构的发展历程,总结南京大学人文地理研究机构由基础层、应用层、联合应用层三个层级组成。将南京大学九十年的人文地理学科发展历程划分为三个历史时期,即1919年到建国初期的近代中国人文地理学源地与人才培养的摇篮,建国初期到20世纪70年代末80年代初承担全国性科学研究和生产任务的先行者,20世纪80年代初期至今的优势学科凸显,同时"大人文地理科学"蓬勃发展与国际化阶段。认为南京大学对中国人文地理学科发展有四大贡献,即中国人文地理学的摇篮与创新源地,中国人文地理学思想理论发展的中坚,中国人文地理学主要分支学科建设的引领者,以及中国人文地理学承担国家重大项目的主体。  相似文献   
65.
在河口三角洲地区,河流是与人类活动关系最为密切的自然元素。本研究选取位于珠江三角洲核心区的广州市五眼桥涌地区为典型案例,通过实地调查、标图和深度访谈,结合相关的统计资料和历史文献,解析了快速城市化背景下珠江三角洲河涌环境的演化过程及动力机制,并分析了人-河关系的演进。研究发现案例地的河涌环境在地貌形态和水环境方面都发生了剧烈变化;城市河涌环境演化的主要动力来自于社会生产层面和个人生活层面的人类活动变迁。案例地人与河涌关系的演进经历了亲密和谐、对立隔离、重塑改善三个阶段。  相似文献   
66.
汤茂林  金其铭 《人文地理》2011,26(4):153-160
李旭旦先生是人文地理学家、区域地理学家和地理教育家,毕生致力于地理教育和科学研究,培养了几代地理学人才,桃李满天下。他才思敏捷,知识渊博,治学严谨、执着,有较高的学术造诣。学术上他强调人地协调论和统一地理学,提倡区域研究,致力于地理教育理论的建设,创办《地理知识》杂志,曾任德国《GeoJournal》杂志编委,主编《人文地理学》(中国大百科全书分册)、《人文地理学论丛》、《人文地理学概说》,提出白龙江是我国西部南北地理分界线的科学论断,主张把解决现实问题作为人文地理学的主攻方向,重视野外调查,晚年他提出复兴人文地理学的倡议,把我国人文地理学的发展推向一个新的阶段。他是我国现代人文地理学的奠基人。  相似文献   
67.
汤茂林  蒋永华 《人文地理》2011,26(1):154-159
地理学界关于教学与研究的关系有些研究,关于研究与出版、教学与出版的关系几乎没有研究,但人文地理学界对这两种关系没有什么研究。研究表明,教学与研究相互依赖,研究是教学的基础,教学是研究成果得以普及和传承的途径之一,还可能促进研究的深入。教学和研究的质量和水平与出版有相当的关系。教材建设需要引进足够的重视并根据成果写出,研究的理念需要拓展,需要培养问题意识、学术史意识、与同行对话的意识和理论意识,还应注意著述的学术规范。学术出版要坚持高标准,以品质为导向,兼顾经济效益和社会效益。  相似文献   
68.
The number of computerised tomography (CT) investigations of mummies has increased since the first published study in 1979. However, this approach has never been validated. We present a critical analysis of the literature (1979 to 2005). Relevant articles were selected via a MedLine search and analysed according to CT technique, methodology, and author's speciality. Thirty‐one original articles matched our selection criteria. Of these studies, 42% were authored by radiologists, while 26% had no contribution from radiologists. Hypothesis‐driven papers comprised only 9.7% of the total. While 84% of the studies had a stated purpose for conducting the CT study, only 67% of studies defined their CT protocol clearly. CT was used to study mummification techniques in 74% of instances, and/or to detect disease in 58%. Conclusions based on CT analysis were derived in 84% of studies, but only 32% of these answered specific questions. Furthermore, only 36% of these conclusions were related to the stated purpose of the study. Using the criteria of the grading system we developed, we found that 61% of studies were supported only by weak evidence. We conclude that evidence‐based research with better design should be encouraged in future palaeoradiological studies. Copyright © 2008 John Wiley & Sons, Ltd.  相似文献   
69.
70.
Since the beginning of the 1970s the under‐representation of women in geography has been questioned in several publications. Most articles refer to the situation in English‐speaking countries. This paper examines the vertical and horizontal gender segregation in human geography departments in Dutch universities. In spite of several policy measures to promote equal opportunity, women form only 19 per cent of all human geography faculty. In the conclusion, consequences and dilemmas related to gender representation and segregation are discussed.  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