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   212篇
  免费   16篇
  228篇
  2023年   3篇
  2022年   2篇
  2021年   3篇
  2020年   12篇
  2019年   6篇
  2018年   13篇
  2017年   5篇
  2016年   15篇
  2015年   9篇
  2014年   10篇
  2013年   43篇
  2012年   6篇
  2011年   9篇
  2010年   8篇
  2009年   9篇
  2008年   4篇
  2007年   9篇
  2006年   9篇
  2005年   8篇
  2004年   4篇
  2003年   6篇
  2002年   3篇
  2001年   6篇
  2000年   4篇
  1999年   2篇
  1998年   4篇
  1997年   3篇
  1995年   1篇
  1994年   1篇
  1992年   2篇
  1991年   1篇
  1990年   1篇
  1989年   2篇
  1988年   1篇
  1987年   1篇
  1967年   1篇
  1966年   1篇
  1950年   1篇
排序方式: 共有228条查询结果,搜索用时 15 毫秒
61.
分析萧梁一代县官选任和调动案例可知,“县制七班”“大县六班”是当时客观存在的制度。但在制度的实际运行过程中,许多县官都会出现超班用人,即任职者官资超过县官对应内职班次的现象。正史所见高班大县全部位于扬、南徐二州境内,且主要隶属南朝国家腹心地区的丹阳、吴、吴兴、会稽等郡,这与史书记事的偏向性不无关系,但同时也是上述地区政治地理条件的直观反映。影响县官班次的最主要因素是人口,结合其他制度推测,等第最高的六班大县有可能是以领民满五千户为定等标准。探索县官班次,也可增进对当时人口地理的认知。  相似文献   
62.
63.
Four propositions relative to the laws of nature in the classical period must be noted. 1. Certain regularities in phenomena had been discovered. 2. A concept of law had emerged. 3. Classical science is characterized by the introduction of the notion of the legality of nature. 4. New uses of the word «law» had appeared in scientific texts. This article is devoted to the analysis of only this last proposition, that is to say to a terminological problem. First we will describe the semantic uses of the word «law» that may have contributed to the constitution of its classical meaning: its specific usage, disciplinary usage, usage in physics, in mathematics, in metaphysics. Second we will analyze the various moments of the diffusion of the word in the sciences in the xviith century. The general thesis defended in the end is that if the term «law» had indeed been used in science with no reference to a law-giving God prior to the xviith century, only this reference, that is, the coming together of its physical and its metaphysical usage, allowed its generalization in the period between the xviith and xviiith centuries.  相似文献   
64.
Urban developments can transform adjacent rural areas by degrading their natural resource base and environmental values. In this paper we provide evidence on the implementation of an endogenous sustainable development plan for the rural–urban environment in the city of Las Palmas de Gran Canaria. The objective was the generation of endogenous development in the rural areas by implicating the local population in developing activities in line with natural values and the recuperation of traditional cultures. At the same time, urban societies were expected to benefit from the preservation and availability of these rural environments. The plan was implemented in a large rural valley located between adjacent urban areas. The valley represents an opportunity for urban dwellers to benefit from a large rural park in the urban environment for leisure and cultural activities. The overall accomplishment of the plan was evaluated and contrasted with the benefits to the urban population, which were also measured with a discrete choice experiment. The results highlight that the principal objectives failed because of the lack of political determination to promote the participatory channels that would lead to the preservation of natural resources in a dynamic process of social change.  相似文献   
65.
Le Morne Brabant is an important mountain landscape in the living memory, colonial history, and national identity of Mauritius. This paper presents a kind of salvage project to understand Makak, an elusive, “mythic” settlement along Le Morne’s northern coast. This detailed analysis brings together wide-ranging oral, written, and material evidence to show that Makak is an informal place name for an area first settled by French colonists in the 1700s, then by several prominent “Free Colored” families in the 1800s, and finally depopulated as residents were forcibly removed in the 1940s. The investigation suggests that Makak is a serial settlement, which seemingly was not eking by at the edge of the Indian Ocean, but thrived as a multicultural community, tapped into global trade networks. The project thus provides a new way of framing Le Morne’s history and heritage, while also providing a potential research model for the nascent field of Mauritian historical archaeology.  相似文献   
66.
张乐 《东南文化》2021,(3):155-160
公共空间是博物馆为观众提供社会教育活动、休闲服务、艺术观赏的场所,也是展陈空间的衔接与延续.中国大运河博物馆的展陈空间与公共空间两者在设计与功能上相互影响、和谐共生,共同构成了博物馆的整体形象.中国大运河博物馆根据运河文化与地方特色设计打造每一处空间,将艺术氛围与服务设施巧妙结合,处处体现以人为本的服务理念,为观众提供...  相似文献   
67.
ABSTRACT It is now commonplace for some anthropologists, and others, to say that for Aboriginal Australians in the remote regions, the landscape is ‘sentient’, however, what that means is not always clear. Are the anthropologists using this term metaphorically or do they understand Aboriginal people to be animists? The ‘new animists' have no doubt that the anthropologists are describing what they call the ‘new animism’. Much of this literature refers to the Warlpiri or their near neighbours. Here I examine the evidence for whether Warlpiri speakers are animists.  相似文献   
68.
ABSTRACT This study re‐evaluates the returns to geographic mobility and to the level of education taking into account the interaction between these two variables, and using the distance covered as a proxy for migration costs. We have at our disposal an original French database that permits precise calculation of the distance between the place of education and the location of first employment. For men, we find decreasing returns to spatial mobility as the distance covered rises and increasing returns to mobility with higher levels of education. The marginal returns to spatial mobility for women are lower across the board.  相似文献   
69.
以红花染纺织品作为主要研究对象,通过紫外光和LED两种光老化方式,研究不同褪色因素影响下纺织品中显色组分红花苷的降解变化情况,实验发现不同酸化作用对红花苷造成不同的影响。采用液相色谱质谱联用的方法,鉴定出红花苷、芹菜素等多种组分,并首次从红花中鉴定出国外报道的但一直未确定的组分Ct4的分子结构,实际是三香豆酰亚精胺,一种酚酰胺类化合物,可作为一种染色工艺指标对现代染和古代染色工艺进行区分。以故宫院藏两件红花染褪色纺织品文物为例阐述褪色机理,显色组分红花苷的降解,产生不同程度的裂化产物小分子,使原本微量存在的三香豆酰亚精胺相对含量增高,从而造成褪色明显,文物在长期日晒下正面原本红色外观呈现橘色打底。同时强调了博物馆应高度重视相同类型文物保存环境中的挥发性酸性气体监测。  相似文献   
70.
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