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   146篇
  免费   17篇
  2024年   2篇
  2023年   3篇
  2021年   3篇
  2020年   5篇
  2019年   5篇
  2018年   27篇
  2017年   12篇
  2016年   7篇
  2015年   10篇
  2014年   15篇
  2013年   21篇
  2012年   8篇
  2011年   6篇
  2010年   7篇
  2009年   6篇
  2008年   7篇
  2007年   2篇
  2006年   3篇
  2004年   2篇
  2003年   1篇
  2002年   2篇
  2001年   2篇
  1999年   1篇
  1997年   2篇
  1995年   2篇
  1993年   1篇
  1990年   1篇
排序方式: 共有163条查询结果,搜索用时 15 毫秒
31.
To most English readers the Lower Paleolithic of the Iberian peninsula is known mainly through a few sites such as Torralba and Ambrona, whose age and behavioral significance remain controversial. In fact, the archaeological data base for this period and region is much larger and more varied than is generally appreciated and includes primary-context sites such as Aridos that have provided unique combinations of evidence on hominid exploitation of elephant carcasses. This paper is both a comprehensive synthesis of our current knowledge and a first attempt to see patterns in the data. Every major occurrence is presented in its regional and geochronological framework; each is critically assessed for data quality and behavioral significance. Major issues addressed in this paper include the working out of regional sequences and intersite correlation, the age and significance of the oldest occurrences, the density and preferred areas of settlement within each region, temporal variation within the Acheulean, and the strength and weaknesses of the data and of our approaches to it.M.S. is responsible for the research and form of this paper; P.V. is responsible for translating, editing, and revising certain sections in consultation with the senior author.  相似文献   
32.
The managers of a growing wall of money are continuously searching for investment opportunities. The financialization literature describes how this mobile capital puts pressure on commodities, debt, public services and economic activities to transform into investable, tradable, financial products. Regarding real estate, these investigations show how opaque, local, non-standardized goods, highly depending on both local legislation and developments, have been transformed into liquid, globally traded financial assets. By analysing the real estate investment strategies of Dutch institutional investors since the 1980s, this paper shows how a quantitative framework increasingly provides the basis for institutional investors’ real estate investment strategies. Direct ownership of properties has been exchanged into shares of properties, that is, fictitious capital, creating an impetus for ‘objectified numbers’ to measure the performance of these indirect investments. As knowledge about real estate has been outsourced, Dutch institutional investors now perceive real estate increasingly as ‘just another asset class’, thereby increasing leverage and volatility. This paper not only shows how finance ‘financialized’ itself by adopting a quantitative investment perspective, but it also offers an empirical account on how investment properties are transformed into financial assets that put pressure on state agencies to mobilize urban planning to deliver more of such assets.  相似文献   
33.
ABSTRACT

The aim of this article is to analyze two Spanish documentary films that reflect on the 2008 financial crisis in Spain, Mercado de futuros (Mercedes Álvarez, 2011) and No estamos solos (Pere Joan Ventura, 2015). These movies could be marked as political for their choice of a collective protagonist and for dealing with the issues of inequality with the purpose of appealing to mobilization and resistance to the neoliberal Western agenda that have provoked social cutbacks after the 2008 crisis. Mercedes Álvarez and Pere Joan Ventura follow the tradition of political documentaries traced by filmmakers such as Dziga Vertov, Joris Ivens, Pere Portabella, and Basilio Martín Patino and open the debate on how people can contribute to searching for renewal policies in times of crisis.  相似文献   
34.
In the scope of European Cooperation in Science and Technology–Wood Science for Conservation of Cultural Heritage (COST IE0601–WoodCultHer) (available at http://www.woodculther.org) it was agreed to produce Guidelines for the Assessment of Historic Timber Structures, covering the principles and possible approaches for the safety assessment of old timber structures of historical relevance that could be used as the basis for possible European Standards, as discussed with CEN/TC346 (Conservation of Cultural Heritage).

This approach was targeted at all those concerned with the conservation of heritage buildings. These guidelines should also help decision-making regarding the need for immediate safety measures. The aim is to guarantee that inspection and assessment measures provide the necessary data for historical analysis, structural safety assessment, and planning of intervention works, while having minimal impact on the building fabric (the original materials, structural systems, and techniques).This article provides information on the criteria to be used in the assessment of load-bearing timber structures in heritage buildings. It covers the preliminary assessment (desk survey, preliminary visual survey, measured survey, structural analysis, and preliminary report), as well as the detailed survey of timbers (with a special emphasis on visual strength grading on site) and carpentry joints. The subsequent diagnostic report and the detailed design of repairs are outside its scope.  相似文献   

35.
This paper focuses on the effects of social capital on industrial clusters. Close networks with strong ties provide benefits for the companies involved in terms of knowledge flow; however, they can also have some negative effects such as knowledge redundancy and obsolescence. We propose an explanatory model to study factors and mediators affecting the redundancy of transmitted knowledge. The model has been applied to a sample of 152 companies in two Spanish industrial clusters. Findings suggest that although strength of ties was associated with redundancy, structural dispersion and local institutions have a negative effect on knowledge redundancy. The findings have a number of relevant implications for individual firms and their policies.  相似文献   
36.
This paper studies the relevance and nature of shifts in relative prices at the regional level in Spain. Deviations in relative prices tend to be small (at most half a point of inflation annually) but persistent. They are determined by features intrinsic to deep economic integration, in particular, wage mechanisms operating at the national level. This is in stark contrast to evidence at the international level. Therefore, while acknowledging that divergent price evolutions are possible in the European Monetary Union, their nature will be different from those observed among Spanish regions.  相似文献   
37.
38.
This paper studies the relation between coalition structures in policy processes and policy change. While different factors such as policy images, learning processes, external events, or venue shopping are important to explain policy change, coalition structures within policy processes are often neglected. However, policy change happens as a result of negotiations and coordination among coalitions within policy processes. The paper analyzes how conflict, collaboration, and power relations among coalitions of actors influence policy change in an institutional context of a consensus democracy. Empirically, I rely on a Qualitative Comparative Analysis to conduct a cross‐sector comparison of the 11 most important policy processes in Switzerland between 2001 and 2006. Coalition structures with low conflict and strong collaboration among coalitions as well as structures with dominant coalitions and weak collaboration both facilitate major policy change. Competing coalitions that are separated by strong conflict but still collaborate strongly produce policy outputs that are close to the status quo.  相似文献   
39.
40.
Carnivore taphonomy has been traditionally used for the interpretation of archaeological sites in order to discriminate human-generated or modified from non-anthropic bone assemblages. In most of this actualistic research, the focus has mainly been placed on hyenas and felids, neglecting other carnivores. This paper analyzes the taphonomic impact of the African wild dog (Lycaon pictus) on equid bones and compares it with the bone modification patterns produced by other canids, such as wolves (Canis lupus) in order to compare medium-/large-sized canid variability on bone modification patterns and elaborate a referential framework which could be feasibly applied to the zooarchaeological record to detect canid intervention on archaeological assemblages in the past.  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