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   1103篇
  免费   31篇
  1134篇
  2024年   19篇
  2023年   30篇
  2022年   8篇
  2021年   9篇
  2020年   49篇
  2019年   50篇
  2018年   125篇
  2017年   103篇
  2016年   91篇
  2015年   53篇
  2014年   60篇
  2013年   222篇
  2012年   39篇
  2011年   37篇
  2010年   42篇
  2009年   21篇
  2008年   29篇
  2007年   21篇
  2006年   12篇
  2005年   8篇
  2004年   12篇
  2003年   6篇
  2002年   9篇
  2001年   7篇
  2000年   8篇
  1999年   7篇
  1998年   9篇
  1997年   4篇
  1996年   3篇
  1995年   5篇
  1994年   4篇
  1993年   3篇
  1992年   3篇
  1991年   2篇
  1990年   1篇
  1989年   4篇
  1988年   1篇
  1987年   3篇
  1986年   3篇
  1985年   2篇
  1984年   1篇
  1983年   1篇
  1982年   1篇
  1980年   1篇
  1979年   1篇
  1978年   1篇
  1974年   1篇
  1973年   1篇
  1972年   1篇
  1971年   1篇
排序方式: 共有1134条查询结果,搜索用时 0 毫秒
991.
    
This contribution deals with the observation and evaluation of the issues of local economic development with a focus on the relatively new method of the local multiplier LM3. The main objective of this article is to evaluate the application possibilities of selected tools for the analysis of local economic development, in order to verify the effectiveness of the methodology of the local multiplier LM3 and to discuss the possibilities of its practical use. This LM3 method is perceived to be one of the convenient methods on how to capture certain components of local economic development. This indicator of the power of local economies is verified within field research in two case studies conducted in the ?umava region in Southwest Bohemia. The added value of this contribution is both methodological and practical. Currently, there exist only very few studies using the LM3 method in the Czech Republic and they do not offer satisfying evaluation of possible broader use of this method in the area of local development in the specific Czech regions. Having summarized two new case studies, this article contributes to the methodological discussion of the LM method and includes concrete practical recommendations for future research and also practical use.  相似文献   
992.
    
This exploratory study aims at reconstructing human paleodiets and that of camelids—their staple animal resource—in El Bolsón, an Andean valley in Catamarca Province, NW Argentina, as a way of exploring variations in the strategies and patterns of food procurement, production, preparation, and consumption by local agricultural-pastoralist societies over the last 1500 years. We present the first systematically obtained data on carbon (13C/12C) and nitrogen (15N/14N) isotopic relationships as measured on camelid and human bone collagen. They come from five camelid individuals from Los Viscos archaeological site, dating to the last 1200 years, and from six human individuals from archaeological rescues and isolated finds bracketed between at least ca. 1300 cal CE and ca. 500 cal CE, as no other human samples are available in the study area. The results suggest that camelids consumed predominantly locally available C3 pastures, while the human paleodiet was primarily based on C4 plants, with camelid protein not being central to it. Here, we discuss how local productive strategies would have played a part in the selective diet of the human inhabitants and interpret this picture in the context of the larger area comprising the Andean valleys of NW Argentina.  相似文献   
993.
    
The use of alternative teaching methods to lectures is one of the keys to develop a more participatory and effective education. In the teaching of Geography, greater interaction of students with elements of the landscape through the active use of photography could be one of the ways to achieve this efficiency. This article describes an experiment conducted in 2016 with students of the subject Physical Geography of the Iberian Peninsula. Two different teaching methodologies were applied to two groups of students. The first one was based on dividing the time of each class between participatory comments of landscape photographs and imparting theoretical knowledge through lectures. The second methodology consisted only of lectures, following a more traditional approach. Additionally, some students from the first group actively participated by uploading and tagging their own field pictures to a photographic repository of the University of Seville. The effectiveness of the different activities in each group was assessed through four tests, performed monthly. The results indicate that the use of landscape photographs as a participative teaching resource allows a more efficient learning of theoretical concepts. Therefore, the proposed methodology should be considered by those interested in improving the quality and effectiveness of their teaching of Geography.  相似文献   
994.
This paper presents the results of a pilot study using dental microwear analysis on 23 sheep and goat teeth dated to the 6th century BC from the Iron Age site of El Turó Font de la Canya (Barcelona, Spain). This study aimed to reconstruct livestock management practices and landscape use. The dental microwear pattern indicates that sheep and goats could have been grazing in the same area where vegetation was composed of shrubs, bushes and non-graminaceous plants on an eroded landscape, although additional supplies of fodder cannot be excluded. This scenario is compatible with the archaeological and palaeoenvironmental data which suggest a possibly increased territoriality, land degradation and an increase of woodland clearance during Iron Age in the North-east of the Iberian Peninsula. Furthermore, we applied two recent microwear approaches which provide more information about mortality events and the possibility of distinguishing between an intensive and extensive management. This paper demonstrates how this method can be used to better understand animal husbandry practices and landscape use in Late Prehistory.  相似文献   
995.
996.
    
ABSTRACT

For many European rural areas, the rural development programmes based on the LEADER approach constitute the main policy for promoting tourism. Going a step further than a rural development programme, LEADER represents an ideal method for overcoming some of the challenges involved in rural tourism development, such as the integration of tourism supply through public-private organizations or the coordination of multi-level policies. Despite its potential, there are difficulties involved in putting this approach into practice. This article aims to provide in-depth understanding of the challenges faced by some managers responsible for developing tourism strategies through the LEADER approach. To do this, semi-structured in-depth interviews have been held with Local Action Groups managers from Castilla-La Mancha (Spain). The main findings reveal that the actions of regional governments lead to the limitation and strangulation of the principle of subsidiarity according with the LAG manager? opinion.  相似文献   
997.
    
Abstract

Based on our experience of years of research, teaching and academic administration, this text gathers reflections on the past, present and future developments of feminist geography in Spain. We first show how a gendered perspective was introduced into geography in the late eighties. We then reflect on what we call ‘the stage of consolidation’ alongside territorial inequalities at the turn of the century. And we finally present some notes what the current situation is and identify future challenges. Despite the difficulties, we offer a positive vision of a long journey that has no turning back.  相似文献   
998.
    
  相似文献   
999.
    
ABSTRACT

The signing of the Anglo-Irish Treaty on 6 December 1921 was a watershed moment in modern Irish history. In addition to copper-fastening the partition of the island, the agreement catalysed the bifurcation of revolutionary Sinn Féin and set in train the processes that culminated, ultimately, in the outbreak of a bitter Civil War the following June. The events that led to the Treaty and the debates on it in Dáil Éireann have received extensive treatment from historians. However, scholars have paid far less attention to the impact of the Treaty on British politics; in particular, they have neglected to explore how the concession of limited Irish self-government impacted Britain’s national self-image at a time of crucial imperial adjustment following the Great War. This article will examine the range of arguments proffered for and against the Treaty in the House of Commons and the House of Lords and suggest that Parliamentary opposition to the settlement was underpinned by a sense of imperial-national feeling, one guided by an attitude of conscious superiority to non-British elements that can be understood productively as a form of British nationalism.  相似文献   
1000.
    
A large sample of human bones from a series of archaeological sites in the south‐eastern Iberian Peninsula was selected for δ13C and δ15N stable isotope analysis. Except for some contrast samples, the remains date from the first half of the second millennium cal BC and are ascribed to the Argar Culture, which developed during the Bronze Age in south‐eastern Iberia. Most authors have considered that this region reached a high degree of social hierarchical organization at this time, as demonstrated by the funerary record, both with regard to the grave goods and to the evidence of physical effort and diseases on the human remains. Results of the isotope analysis revealed the existence of differences among the settlements studied, as well as differences over time within every settlement and among the various individuals tested. Some variances can be assigned to social classes/status and others are linked to chronological factors. In particular, changes in δ13C can be explained by the increasing aridity of the first half of the second millennium cal BC, although other causes can be put forward too.  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