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   4555篇
  免费   115篇
  2024年   13篇
  2023年   63篇
  2022年   88篇
  2021年   78篇
  2020年   170篇
  2019年   148篇
  2018年   166篇
  2017年   172篇
  2016年   190篇
  2015年   120篇
  2014年   143篇
  2013年   464篇
  2012年   281篇
  2011年   266篇
  2010年   198篇
  2009年   240篇
  2008年   257篇
  2007年   310篇
  2006年   262篇
  2005年   264篇
  2004年   174篇
  2003年   147篇
  2002年   156篇
  2001年   77篇
  2000年   98篇
  1999年   25篇
  1998年   14篇
  1997年   15篇
  1996年   10篇
  1995年   8篇
  1994年   13篇
  1993年   12篇
  1992年   6篇
  1991年   8篇
  1990年   4篇
  1986年   1篇
  1983年   4篇
  1982年   2篇
  1980年   1篇
  1978年   2篇
排序方式: 共有4670条查询结果,搜索用时 15 毫秒
111.
Because it associates animals with one of the most vital topics in human history, the historiography of the cross‐connections between race and animal‐breeding is at once controversial and inspiring. This article wishes to position this historiography in a more systematic framework than has been done thus far by examining both its merits and failings along with the more and less appropriate ways to write on the subject. The article identifies two main narratives in race–animal‐breeding historiography: the influence narrative and the projection narrative. The first reveals how perceptions of animal breeds and livestock‐breeding practices influenced the rise of racialist and eugenic worldviews. By contrast, the second shows how conceptualizations of human racial segregation contributed to the construction of ideas about the subdivision of domestic animal species into different breeds. The article argues that despite the projection narrative's inherent anthropomorphism, this perspective renders it possible to draft a nonanthropocentric history of the cross‐connections between race and animal‐breeding with a focus on human–animal relations rather than on human society.  相似文献   
112.
This article assesses co-chairs’ roles in affecting the outcomes of Asia-Pacific defence diplomacy, which have been under-examined. Attempting to mend this intellectual gap, our study examines: ‘What shapes specific agreement details?’ We contend that co-chairs’ effectiveness is not borne out of resource possession but in fact derived from their ability to manage the resources. In order to be effective, co-chairpersons must convert the available resources at hands into bargaining leverage. To validate our argument, empirical analysis of military medicine (MM) collaboration under the ASEAN Defence Ministers’ Meeting Plus (ADMM-Plus) framework was conducted. We demonstrate how the Thai and Russian co-chairs altered the bargaining dynamics to shape the outcomes regarding the ASEAN Center of Military Medicine (ACMM). Insights from our analysis not only extends the existing academic literature on Asia-Pacific defence diplomacy and international negotiation, but also provides practitioners with lessons useful for conducting defence diplomacy and enhancing security cooperation in the Asia-Pacific and beyond.  相似文献   
113.
Contemporary Australian Indigenous policy changes rapidly and regularly fails to deliver its stated aims. Additionally, political and social relationships between Aboriginal and Torres Strait Islander peoples and the Australian state remain complex and contested. This article draws on critical Indigenous theory, alongside the increasingly influential scholarly paradigm of settler colonialism, to draw these two elements together. It highlights the ongoing nature of colonial conflict, and the partisan nature of state institutions and processes. While policy is usually framed as a depoliticised, technical practice of public management for Indigenous wellbeing, I suggest that it also seeks to ‘domesticate’ Aboriginal and Torres Strait Islander peoples, perform their dysfunction and demonstrate state legitimacy. This is especially the case in Australia, which has a long tradition of framing domestic welfare policy – rather than legal agreements – as the ‘solution’ to settler colonial conflict.  相似文献   
114.
Voluntary environmental programs (VEPs) have been used as a policy tool in the United States since the early 1990s and come in many forms. Early assessments of VEPs targeting changes in production processes showed that industrial participants improved their environmental performance and VEPs were celebrated as a viable alternative to more traditional regulation. Recent analyses using more sophisticated techniques, however, paint a less favorable picture. On the one hand, firms appear willing to sign up to VEPs, and in some cases, participants may be able to create a shield against future losses in shareholder value. On the other hand, these VEPs targeting production processes appear not to generate significant pollution abatement. The latter finding is particularly disturbing and this article discusses various explanations, including institutional failure and participant motivations. Future research needs to focus on understanding the firm motivation to invest in production‐related pollution abatement under a VEP. For policymakers, the research offers a warning on the limited impact to date of VEPs targeting production processes. However, the multitude of other VEPs, such as those which target new product development and changing market demands, merit a closer look to determine the overall potential of VEPs to engender positive environmental change.  相似文献   
115.
Traditions and transitions in Korean bronze technology   总被引:1,自引:0,他引:1  
Metallurgical examination of Korean bronze artifacts shows that a technical tradition based on casting and use of leaded high-tin alloys was established in Korea at the early stages of bronze use. After the subsequent discovery of quenching methods that suppress formation of the brittle δ phase, new thermo-mechanical techniques were introduced between the 7th and 10th centuries AD. Lead-free alloys were used, and tin contents near that of the peritectic point in the Cu–Sn phase diagram were chosen. Leaded high tin alloys continued in use, but only in cast objects, and with significant composition variation. The unique conditions during the time of innovation suggest that the transition to new metallurgical techniques was gradually achieved through domestic technical innovation inspired by external influences.  相似文献   
116.
Recent research has studied the effects of seasonal variability on waterlogged burial environments. In a new approach to the study of archaeological contexts, the use of controlled laboratory conditions via lysimeters has enabled new insights into the nature of short term fluctuations in saturation, and the impact that these can have on burial contexts. In addition, the protocols used have facilitated interesting insights into burial environments and the way in which fluctuations in saturation and seasonality can impact on the contained organic components within them.  相似文献   
117.
一批流散海外的吐蕃文物的初步考察   总被引:2,自引:0,他引:2  
吐蕃文物曾通过不同途径流散于海外,主要包括金银器与织锦。从中反映出吐蕃作为七世纪以来兴起于青藏高原的强大政治集团与唐、粟特、萨珊波斯等都有着密切的文化联系,并已形成具有自身特色的金银器制作风格;以对兽纹为主题的织锦是吐蕃人最为喜好的"番锦"之一,有可能为粟特锦,也有可能为包含粟特锦、波斯锦等中亚风格在内的"胡锦"。吐蕃银器上的纹饰更是多见于吐善时期的装饰性图案当中,并且影响到以后的藏族艺术。  相似文献   
118.
清代宫廷对白伞盖佛母的崇拜出现了显著的发展,特别在乾隆时期,除在宫中大量制作白伞盖佛母像外,还在北京及其周边地区的各大寺庙制作供奉精美的绘画和雕塑,甚至专门兴建寺院来供奉白伞盖佛母像。其信奉目的和崇拜方式等方面的特点,目前尚很少有专门的论述见诸文献。本文借助清宫档案及现存清代原状佛堂内白伞盖佛母的陈设情况,试图说明清代宫廷是将白伞盖佛母作为重要的福寿保护神来供奉的,并不是简单地继承元代的信仰传统而是另有传承和发展。  相似文献   
119.
六朝隋唐时期,考功郎隶属及其职掌均发生较大变化。魏晋时,考功郎掌百官考课,隶属于吏部尚书;南朝时,功论郎取代考功郎掌考课,隶属于都官尚书;北朝中后期,考功郎中掌考课百官及考试秀孝,隶属于吏部尚书;隋及唐前期,考功郎中、员外郎之隶属及其职掌略同北朝。唐中期以后,考功郎中、员外郎专掌京官与地方官的考课,策试秀孝的职责则转归礼部。六朝隋唐时期考功郎隶属及其职掌的变化,反映了尚书省机构的职能调整及选举与考课各司其责体制的逐渐形成。  相似文献   
120.
魏晋南北朝玉佩研究   总被引:1,自引:0,他引:1  
魏晋南北朝玉佩自发现以来,学术界对其性质和组构样式的判断皆不甚明了。近年南京仙鹤观东晋玉佩的完整发现,为研究其结构与性质提供了详实的研究资料。本文以此为基础,结合国内各地玉佩的发现情况及历史文献资料,分析魏晋南北朝时期玉佩发展、演变的历史原因,并试对玉佩构件进行了初步的复原研究。  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