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   5082篇
  免费   138篇
  2024年   15篇
  2023年   64篇
  2022年   89篇
  2021年   90篇
  2020年   200篇
  2019年   167篇
  2018年   219篇
  2017年   219篇
  2016年   240篇
  2015年   144篇
  2014年   141篇
  2013年   659篇
  2012年   304篇
  2011年   292篇
  2010年   208篇
  2009年   260篇
  2008年   263篇
  2007年   307篇
  2006年   271篇
  2005年   276篇
  2004年   174篇
  2003年   148篇
  2002年   158篇
  2001年   77篇
  2000年   102篇
  1999年   26篇
  1998年   14篇
  1997年   15篇
  1996年   14篇
  1995年   8篇
  1994年   14篇
  1993年   13篇
  1992年   5篇
  1991年   8篇
  1990年   4篇
  1986年   1篇
  1983年   4篇
  1982年   3篇
  1981年   1篇
  1980年   1篇
  1978年   2篇
排序方式: 共有5220条查询结果,搜索用时 15 毫秒
91.
倪亚清  张惠敏 《东南文化》2016,(4):38-42,2,68,129
2001年9月浙江省临安市文物馆组织清理了一座唐五代时期墓葬。墓葬平面略呈船形,为多耳室、多壁龛的券顶砖室石门单室墓。随葬器物以越窑青瓷器为主,有少量的银器和铜钱。墓葬年代早于临安青柯五代墓、晚于临安晚唐钱宽水丘氏夫妇墓。墓主人应为五代钱氏王室成员或功臣,很有可能为钱镠第二子钱元玑墓。该墓的发现为研究五代十国时期墓葬形制、越窑瓷等提供了珍贵的实物资料。  相似文献   
92.
韦正 《东南文化》2016,(4):6-10
政治史取向和类型学方法在保证汉唐考古取得很大成绩的同时,也制约了汉唐考古的研究范围、理论建设,并影响到汉唐考古研究者的知识结构和思维方式。新出土资料的减少迫使汉唐考古改变"能源型"发展模式,其他人文学科的发展则为汉唐考古向"技术型"转变带来机遇。汉唐考古研究者的主要工作从归纳总结考古资料,转变为以历史文献为基础,借鉴其他人文学科的方法论,对汉唐考古材料的内涵和意义进行解释,是汉唐考古研究的发展趋势。  相似文献   
93.
文化遗产基金制度或与文物保护相关的艺术基金制度在西方发达国家已基本完善。基金会通过多渠道广泛地筹集资金,并有效地进行战略管理和再投资;同时,基金会的日常运作公正透明,具有完善的内外部监督机制。这些贯穿于基金运作各层面的制度及运作经验十分值得我国借鉴。  相似文献   
94.
ABSTRACT

The highest number of German scholars and physicians, forced by the National Socialist regime to emigrate for “race” or political reasons, were from Berlin. Language and medical exams were requested differently in their new host country—the United States—leading to a concentration of immigrants in the New York and Boston areas. Very early Emergency Committees in Aid of German Scholars and Physicians were established. Undergraduate students (like F. A. Freyhan, H. Lehmann, and H.-L. Teuber) from Berlin seemed to integrate easily, in contrast to colleagues of more advanced age. Some of the former chiefs and senior assistants of Berlin’s neurological departments could achieve a successful resettlement (C. E. Benda, E. Haase, C. F. List, and F. Quadfasel) and some a minor degree of success (F. H. Lewy and K. Goldstein). A group of neuropsychiatrists from Bonhoeffer’s staff at the Berlin Charité Hospital could rely on the forceful intercession of their former chief. The impact of the émigré colleagues on North American neuroscience is traced in some cases. Apart from the influential field of psychoanalysis, a more diffuse infiltration of German and European neuropsychiatry may be assumed. The contribution to the postwar blossoming of neuropsychology by the émigré neuroscientists K. Goldstein, F. Quadfasel, and H.-L. Teuber is demonstrated in this article.  相似文献   
95.
Conservation of built heritage is a key planning process and goal which shapes urban development outcomes across European cities. In Ireland, conservation of the built heritage is a key part of the planning framework, albeit one that is, in comparative terms, only recently established. While it is widely recognized that the underlying rationale for conservation of built heritage varies considerably (from cultural priorities to place marketing), the literature suggests that heritage and conservation professionals perform a key role in controlling decision-making through an official or “authorized” heritage discourse (AHD), emphasizing expert values and knowledge and based around selective heritage storylines often reflecting elite tastes. Drawing on policy and practice in Ireland, in this paper, we contribute to these debates by further unpacking the AHD, exploring tensions within the heritage policy elite through examination of competing views and representations relating to the purpose of built heritage protection. Based on a discourse analysis following interviews with key national actors, we identify two key narratives—a “museum-curatorial” discourse and an “inclusive heritage” discourse—which in turn frame conservation practices. We argue that subtle variations of heritage meanings have the potential to either reproduce (museum-curatorial discourse) or challenge (inclusive heritage discourse) conventional modes of practice, particularly relating to the relationship between built heritage and identity and the role of public engagement.  相似文献   
96.
This paper explores the effectiveness of policies ‘in’ attracting the foreign research and development (R&D) of multinational enterprises (MNEs) to specific countries in Europe. We develop a macroeconomic investigation covering 29 European countries during the period between 1990 and 2012 in order to address: (a) whether the provision of direct financial support for business R&D is effective for the attraction of foreign R&D; (b) whether direct support is more effective than indirect support for this purpose and (c) whether the link between direct financial support for business R&D and the foreign R&D of MNEs is conditioned by the context within which the support is provided. The results of the analysis show that, first, the provision of direct financial support is generally effective for the attraction of foreign R&D by MNEs. Second, direct support for business R&D is more effective for this purpose than indirect support. Third, the provision of direct financial support for business R&D yields greater returns in contexts that are more socio-economically suitable for knowledge-intensive, innovative activity.  相似文献   
97.
The insights of feminist science and technology studies (STS) into the constructed and situated nature of knowledge have proved crucial to informing feminist geography. Since the rise of emotional geographies, feminist methodologies no longer simply reflect on questions of positionality, partiality, and power relations, but also on the role of emotions in the field. In this article, we argue that a feminist STS perspective has much to offer when thinking about the way emotions are engineered, controlled, and negotiated in research processes. Our engagement with what we call ‘social laboratories’ – i.e., spaces in everyday life where (experimental) research is conducted with human beings – advances debates in feminist geography, as these laboratories crystallize the emotional entanglements feminists encounter in the field. Looking at economic experiments in Ghana and fertility clinics in Mexico, we discuss the difficulties of doing feminist fieldwork in these experimental research spaces. We argue that the constant negotiation of emotions and ethics is crucial to access, assess, and do fieldwork in research settings that do not adhere to feminist ideals, but nevertheless have gendered effects on women's and men's lives. Rethinking ‘the place of emotions in research’ (Bondi 2005, in Emotional Geographies, edited by Joyce Davidson, Liz Bondi, and Mick Smith, 231–246, Aldershot: Ashgate) through social laboratories forges instructive links across feminist/emotional geographies and social studies of science.  相似文献   
98.
Hedwig revisited     
The mainstream success of the 2014 Broadway revival of John Cameron Mitchell’s Hedwig and the Angry Inch is in stark contrast to the precarity of the central protagonist’s life and the communities out of which the original Hedwig production emerged. While these tensions reveal some of the complicities between homonormativity, gentrification, and neoliberalism, by tracing Hedwig’s other genealogies, a more complicated vision of queer possibility emerges.  相似文献   
99.
This paper evaluates chronological trends in the presence and absence of domestic animal bone (sheep, goat, and cattle) and pottery in Namaqualand, the proposed gateway to the rest of South Africa for early herders or hunter-gatherers with sheep and ceramics. We update date calibrations with local ΔR corrections and mixtures of recent calibration curves and include five previously unpublished dates. We use histograms of calibrated medians, sorted in 100-year bins, to assess sustained regional patterns with dates associated with domestic animal bone and pottery (n = 73). While too small to be useful as a population proxy, the current set of dates does reveal three pulses of occupation separated by two clear gaps, which we evaluate with a Bayesian model of three sequential phases. The model's boundaries are used as estimates of the dates of Early (AD 80–210), Middle (AD 490–790), and Late (AD 1180–1690) occupational phases separated by two substantial lapses of 280 and 380 years, respectively. The alternating phases of presence and absence are suggestively correlated with climate shifts, leading to a discussion of the idea that effective moisture was a crucial factor in choosing whether to occupy Namaqualand. The set of archaeological dates has greater temporal and spatial resolution than many regional climate data, so we suggest that these trends may more accurately reflect the variable conditions specific to Namaqualand, at least until they are refined by future climate research.  相似文献   
100.
Tie-rods are essential structural elements, which have been employed for centuries in masonry historical buildings, either during the construction or in successive strengthening interventions, with the aim of containing dangerous horizontal actions. The actual work conditions of these tie-rods, which are strongly influenced by their load history, are difficult to be quantified theoretically, and an effective method for their measure is of great importance in order to ensure the efficiency of these elements during the time and the stability of the entire building. Common measurements are often carried out adopting models based upon significant simplifications, like, for example, hinges at the extremities. These assumptions, rarely represent the real work conditions for anchorages. In this work, a non-destructive testing method is presented, based upon sophisticated dynamical models that can take into consideration many of the circumstances neglected by the simplified models. Four case studies are extensively described, trying to embrace the most common situations in term of peculiar features of the building, structural configuration, and load history. The discussion of the results yields the safety margin of the rod with respect to the material failure and provides important indications about the overall stability of the whole building.  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