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   1630篇
  免费   314篇
  2023年   4篇
  2021年   16篇
  2020年   15篇
  2019年   114篇
  2018年   88篇
  2017年   92篇
  2016年   136篇
  2015年   96篇
  2014年   100篇
  2013年   374篇
  2012年   93篇
  2011年   106篇
  2010年   81篇
  2009年   57篇
  2008年   79篇
  2007年   73篇
  2006年   49篇
  2005年   25篇
  2004年   39篇
  2003年   35篇
  2002年   26篇
  2001年   23篇
  2000年   33篇
  1999年   5篇
  1998年   17篇
  1997年   18篇
  1996年   15篇
  1995年   18篇
  1994年   16篇
  1993年   6篇
  1992年   7篇
  1991年   5篇
  1990年   4篇
  1989年   5篇
  1988年   2篇
  1987年   8篇
  1986年   3篇
  1985年   5篇
  1984年   5篇
  1983年   3篇
  1982年   5篇
  1980年   6篇
  1979年   7篇
  1978年   2篇
  1977年   8篇
  1976年   3篇
  1975年   5篇
  1974年   3篇
  1969年   2篇
  1968年   2篇
排序方式: 共有1944条查询结果,搜索用时 15 毫秒
61.
62.
While the links between contaminated sites and adverse effects on human health and well‐being are being increasingly recognised, some argue that the magnitude of the health problem is inadequately addressed because it is largely invisible. Health geographies literature has sought to highlight this invisibility by focusing on the link between contaminated sites and health. This study adds to health geographies by presenting unique insights into the geography of residents' worry about the disruptive effect of environmental contamination on health and well‐being. It analyses a sample of residents (n = 485) living near 13 contaminated sites across Australia. Ordinal logistic regression analysis of closed‐format survey questions was combined with coding of open‐ended survey questions to reveal the geography of residents' worry about contamination from nearby sites. First, the study explores some of the main relationships between residents, their environs, and contaminants from nearby source sites, which determines their levels of worry: residents' demographics, residents' proximity to sites, contaminant boundaries and borders, and type of contaminant. Second, the study investigates how worry affects residents' health and well‐being, ranging from effects on their personal functioning through to their sense of ontological security, which depends in part upon their perceptions of contaminants' impacts. Despite having identified a range of diverse and negative effects of worry about contamination on residents, we found that worry for contamination can also prompt coping strategies and problem‐solving, reinforcing the need for more research on this subject.  相似文献   
63.
This study seeks to advance the understanding of the utility of “soft power” by exploring the case of Qatar. The country's approach is conceptualized as “nested power” through the examination of its political strategies before and after the regional blockade in 2017. The role of soft and nested power in Qatar has already been examined through various vantage points, such as small state diplomacy, mediation, and sports. Since the blockade has been for Qatar a great strategic dilemma, examination of how it affected power dynamics reveals the salience as well as the resilience of Qatar's soft and nested power. The article will discuss the concepts of “soft” and “nested” powers and their relevance to the state of Qatar in general and it will focus in the final section on the post‐blockade period. In doing so, we also seek useful approaches, which can be compatible with, and even advance “global international relations” (IR). The movement to make IR more global and inclusive is a welcome feature of the current century, reflective of the burgeoning role of the “Global South.”  相似文献   
64.
65.
66.
67.
68.
Japanese–French negotiation for their 1907 entente revealed contrasting approaches to the application of the Open Door principle in China, particularly to the Fukien province after the Japanese victory in the Russo-Japanese War. Having learned about France's wish to receive Japanese guarantee for the safety of its colony in Indo-China, Japan strove to define Fukien as its additional sphere of influence once it had secured much needed loans in the Paris financial market. France tried to resist Japan's request to define Fukien as its sphere by adopting a secret note, and attempted to restrain Japan's future expansion into China by enmeshing Japan in the web of political and financial ententes with itself and Britain supporting Open Door. This approach of France was a continuation of French policy toward East Asia since the Boxer Uprising, securing its economic interests by supporting Open Door rather than pursuing territorial competition with other great powers in China. In contrast, the Japanese government strenuously attempted to weaken the general application of Open Door doctrine in China, and could define Fukien as Japan's additional sphere by securing a secret explanatory note for such a purpose.  相似文献   
69.
In 2010–11 a pedestrian survey of the western end of Wadi al‐Hijr in northern Oman identified 1507 archaeological features in a 124 km2 area. Data were collected on each feature's architectural characteristics, associated artefact assemblages, topographic and environmental locations, condition of remains, and relations to other archaeological features. The majority of datable features belong to the third millennium BC and divide unequally between the Hafit and Umm an‐Nar periods. While the majority of these third‐millennium BC features were tombs, other feature types were identified, including towers, settlements, quarries, dams, enclosures, and possible platforms. Third‐millennium BC features were organised into clusters and ranged considerably in size, from a few features to several hundred. All of the clusters established during the Hafit period were maintained in the Umm an‐Nar period, suggesting a continuity throughout the third millennium. Some preliminary hypotheses regarding settlement patterns are suggested.  相似文献   
70.
The Royal Artillery Factory of Seville in Spain originated from pre‐existing private bronze foundries dating from the 16th century. The paper analyses the stratigraphy of wall cladding in the areas traditionally known as the ‘Old Foundry’ and the ‘New Foundry’, through its characterization by optical microscopy, scanning electron microscopy with energy‐dispersive X‐ray spectrometry (SEM‐EDX), micro‐X‐ray fluorescence (μ‐XRF) and micro‐X‐ray diffraction (μ‐XRD), in order to analyse the metal deposits that have accumulated since the 17th century. The data obtained allowed the verification of the available historiographical information and the location of the original bronze smelting furnaces. The analysis of patinas deposited on the overlapping layers of lime also confirmed that neither the raw materials nor the composition of the alloys used presented any substantial changes.  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