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   136篇
  免费   4篇
  2024年   1篇
  2023年   2篇
  2021年   1篇
  2020年   5篇
  2019年   2篇
  2018年   10篇
  2017年   8篇
  2016年   14篇
  2015年   5篇
  2014年   6篇
  2013年   17篇
  2012年   7篇
  2011年   8篇
  2010年   10篇
  2009年   6篇
  2008年   9篇
  2007年   5篇
  2006年   5篇
  2005年   1篇
  2004年   2篇
  2003年   1篇
  2002年   5篇
  2001年   5篇
  1999年   2篇
  1998年   1篇
  1995年   1篇
  1988年   1篇
排序方式: 共有140条查询结果,搜索用时 780 毫秒
111.
小农户是乡村振兴最重要的利益与价值主体,也是乡村地域系统结构—功能及形态建构主体。小农户振兴,即为适应当前乡村地域系统乃至城乡地域系统社会经济形态、地域结构—功能重构,通过对影响农户生计转型发展的内部要素和外缘要素的调控管理,实现小农户生计转型升级及其与乡村地域系统、城乡地域系统结构—功能演化融合协同发展的过程。文章基于小农户概念内涵,分析了小农户振兴与乡村振兴的耦合关系、小农户振兴与城乡地域系统演化发展的联结关系,提出应根据地域差异,在明晰小农户生计转型发展和城乡地域系统类型、要素组成、结构—功能、发展特征与模式的前提下,按“村域—乡村地域系统—城乡地域系统”不同尺度分区分类实施小农户振兴。重点关注小农户振兴与乡村地域系统结构—功能、乡村产业体系、乡村社会功能再组织化及乡村生态环境提质的耦合协同,加强小农户振兴与乡村资源管理、小农户振兴地域类型与特征、小农户振兴规划与政策、小农户振兴路径与模式等方面研究。  相似文献   
112.
This paper provides regression formulae for size estimation of kingsoldier bream (Argyrops spinifer) from measurements taken on bones enabling the reconstruction of the size of fish present in archaeological samples. Bones of Sparidae are commonly recovered from archaeological sites bordering the Arabian Gulf, and, of the species within this family, kingsoldier bream are relatively abundant with the bones also easily identifiable. The marine environment where this fish occurs varies throughout its life cycle, and therefore the reconstructed size of the fish can be used to infer the types of location where past fishing activities took place. Comparison of the estimated size of fish caught from two Late Islamic sites on the northwest coast of Qatar, in combination with other evidence, has been used to indicate differing frequencies of fishing methods at the two sites. This variation in fishing is caused by the topography of the coast in the immediate vicinity of the sites with shallow waters providing a wide tidal zone at the northern of the two with an environment suitable for fishing with stone‐built intertidal fish traps (known in Arabic as al maskar). The topography of the coast at the southern of the two sites is steeper, and the settlement was an important trading port so the coast was utilised primarily as a harbour rather than a fishing ground. The supply of fish at this settlement was provided by fishermen more commonly using basket traps (gargoor) and handlines with fishing taking place from boats. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
113.
叶新霞 《神州》2011,(9X):120-120
文章分析了“有效教学”的主要特征,并指出,为促进学生达到预期的学习结果,教师必须弄清四个问题:教学目的是什么,无效课堂症结何在,教什么与学什么,怎么教是有效教学。  相似文献   
114.
In the last decade, European regional policy has faced considerable changes typified by the introduction of the place-based approach with the Barca Report. One of the most prominent changes in European territorial cooperation (ETC), supposedly reflecting this shift, is the development of macro-regions, the dynamic of which are only just beginning to influence policy-making. This paper aims to analyse contemporary styles of ETC under the place-based narrative by identifying characteristics of macro-regional cooperation. Drawing on empirical studies in the Danube, Alpine and North Sea regions, the paper shows that stakeholders’ primary rationale for getting involved is the opportunity for agenda-setting, and the intention to evoke changes in debates and in other stakeholders’ influence. The main argument the paper follows is that macro-regional experiences reveal a crucial dependence on relatively strong stakeholders. With the term ‘stakeholder-based’, the paper draws attention to the importance of stakeholder settings in these new forms of ETC. The paper concludes that conceptualizations of approaches to European regional policies would need to acknowledge the regional differences of stakeholder settings more explicitly, and highlights the need to better acknowledge the implications for political transparency and relative power in agenda-setting.  相似文献   
115.
The historical agency of the small- and medium-sized historical actors, the so-called Lesser Powers, remains much neglected in the historiography of the Revolutionary and Napoleonic period. The reason for this is that hitherto historians have failed to develop a historical perspective that does justice to the particularities of Lesser Power agency. This article explores the historical agency of two Lesser Powers, Nassau and the Netherlands, in the Revolutionary and Napoleonic era, though with a particular emphasis on the era of the reconstruction of the post-Napoleonic international order, the years 1812–15. By viewing the agency of these historical actors through the prism of the dynastic network of the House of Nassau, rather than through the prism of its component parts, the Walramian Nassaus of Weilburg, Usingen and Saarbrücken and the Ottonian Nassaus, commonly referred to as the House of Orange-Nassau, the ruling dynasty of the Dutch Republic, this article offers a new approach to researching Lesser Power strategies of international conflict resolution, thereby hopefully contributing to the creation of a much-needed historical narrative of Lesser Powers.  相似文献   
116.
A concern with the use and abuse of power, how it is exercised, by whom, and to what ends runs throughout the fiction of Catalan writer Jaume Cabré. His 1984 novel Fra Junoy o l'agonia dels sons, which was awarded the Premi Prudenci Bertrana, Crítica Serra d'Or, and Nacional de la Crítica, dramatizes the intransigence of ecclesiastical authorities in conflict with the desire for tolerance of a friar. Cabré employs different temporal and spatial planes, shifting points of view, and one of his favorite strategies, that of beginning his novels in medias res and showing the consequences of actions before narrating the actions themselves. A contrapuntal technique contrasts not just characters, but differing concepts of religion and religious life, and sets quotations from the Bible against passages from the governing documents of the convent where Fra Junoy serves as confessor. The clash between his doubts and the certitude of the convent's rigid abbess calls to mind the contest between Sister Aloysius and Father Flynn in John Patrick Shanley's Doubt: A Parable (2005).  相似文献   
117.
Abstract

While there is a great deal of research on destination branding in general, the study of tourism marketing that deals specifically with destinations suffering from prolonged image problems is less well developed. We integrated theories from crisis communication, image restoration and destination marketing to examine media strategies used by such destinations to attract tourism, and then classified them. We utilized qualitative content analysis of tourism campaigns for destinations – primarily in problematic areas such as the Middle East, Africa, Eastern Europe – that appeared in international tourism magazines, destinations’ websites and video-sharing websites. We classified two approaches of media strategies: the ‘cosmetic approach’, relating to strategies that focus mainly on altering the destination's image and the ‘strategic approach’, relating to strategies that take comprehensive action, changing both the negative image and the problems causing it.  相似文献   
118.
Abstract

Environmentalism is giving way to sustainability in a process that is aided by complementary shifts in economic, social and political arenas. Environmentalism was always a necessary first step. The shift towards sustainability is beginning to take place because the mood of the times is now ready to promote its early stages. However, as we contemplate more fully the fuller significance of sustainability, the very ethos of livelihood and lifestyle enters the frame of enquiry. Livelihood and lifestyle are part of the same set of phenomena defining personal and social identity, and economic well-being. But we can stillask two complementary questions. Are we seriously prepared to metamorphose into a sustainable life style? Can we devise ways to cope by drawing on multiple livelihoods? This will be one of the key issues for human geographers to examine in the coming decade.  相似文献   
119.
Paleoindians of North America entered a continent undergoing rapid climatic and environmental changes. This paper is a preliminary contribution toward obtaining a better picture regarding how climate and environmental change might have impacted the first settlers of North America. The Paleoindian sites we analyzed are, from the oldest to the youngest, Ingleside (Texas), Blackwater Draw Locality No. 1 (New Mexico), Hiscock Site (New York), and Plainview Quarry (Texas). Paleoenvironmental reconstruction involves identifying the dietary traits of ungulate species that might reflect the environmental conditions where they were living, and also where they might have been hunted by Paleoindians. Such an approach is realized through tooth microwear and mesowear analyses. Results indicate that a variety of food resources were available for the ungulates at these sites as well as the likely presence of mosaic environments around these sites which allowed Paleoindians to exploit resources in a large variety of habitats. The application of a method that allows for the estimation of the duration of occupation at archaeological sites reveals that results for Blackwater Draw and Hiscock Site indicate a long-term occupation of probably several months. However, during short events, Paleoindians were most likely hunting herds of horse and bison when these prey were available near the site. Results indicate that Plainview Quarry was likely used only for short-term occupations, with large game hunting focusing on bison. These patterns identified at the archeological sites studied are related to the fact that Paleoindians follow a high-technology forager model and frequently shifted their territory depending on the composition and distribution of the large mammal fauna.  相似文献   
120.
The paper examines Middle Holocene hunter-gatherer adaptive strategies in the Baikal region of Siberia based on diverse data (radiocarbon, mortuary, geochemical, genetic, human osteological, and zooarchaeological) accumulated over the last 10–15 years. The new model emphasizes the cyclical nature of the long-term changes and recognizes similarities between the Early Neolithic and Late Neolithic–Early Bronze Age cultures. The overall impression seems to be that change in the region was rapid rather than gradual. A number of interesting correlations between various cultural and environmental variables have been identified. During the Early Neolithic and Late Neolithic–Bronze Age, the spatial distributions of mortuary sites, open landscape, and good fisheries are all correlated and both intervals are coeval with periods of environmental stability. For the Early Neolithic two additional sets of correlated variables have been identified: (1) the uneven distribution of fish resources, uneven distribution of the human population, and cultural heterogeneity; and (2) poorer overall community health, more extensive male travel and heavier workloads, and higher reliance on fishing. For the Late Neolithic–Early Bronze Age, the sets of correlated variables are somewhat different: (1) more even distribution of terrestrial game resources (herbivores), more even distribution of the human population, and cultural homogeneity; and (2) better overall community health, less travel and lighter workloads, more equitable distribution of labor between males and females, and higher reliance on game hunting. Viewed together, these patterns emphasize the much more dynamic pattern of hunter-gatherer cultural variability, temporally and spatially, compared to what was known before.  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