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   184篇
  免费   11篇
  2023年   10篇
  2021年   2篇
  2020年   12篇
  2019年   12篇
  2018年   21篇
  2017年   15篇
  2016年   20篇
  2015年   6篇
  2014年   12篇
  2013年   31篇
  2012年   11篇
  2011年   4篇
  2010年   6篇
  2009年   5篇
  2008年   4篇
  2007年   4篇
  2006年   1篇
  2005年   2篇
  2004年   3篇
  2002年   4篇
  2000年   4篇
  1994年   1篇
  1992年   2篇
  1980年   1篇
  1972年   2篇
排序方式: 共有195条查询结果,搜索用时 15 毫秒
11.
Population education is one of the strategic measures to encourage giving birth in low-fertility Serbia. The expected result is that such education may have an effect on reproductive intentions and overall people behavior. This study explores the thoughts about reproduction of three different student groups from the University of Belgrade, whereas their specific knowledge about demography ranges from basic to very good. The intention was to clarify whether awareness and knowledge about demographic problems change attitudes on reproduction of future highly educated people. The study was performed via a survey that was conducted among: Demography students, who have studied demographic phenomena for at least 3 years, students who have taken only one course in demography during their studies and students who have not acquainted themselves with demographics throughout their studies. It is based on the students’ views of ideal, desired and expected family size, on an evaluation of factors that affect reproduction, on identifying other beliefs relevant for future reproduction, as well as on a discussion with Demography students. Demographic education did not show to be an essential factor of differentiating reproductive norms of students. “Collective rationality” and a reflection of the economic crisis on reproductive intentions are dominant student responses.  相似文献   
12.
Abstract

This article reconstructs the dynamics of delegitimation of political opponents in the Italian Christian Democratic Party (DC), which had a relative majority and almost uninterruptedly led Italy’s governments from 1945 to 1992. The DC built its strategy of delegitimation on two levels, an ideological-religious one and a systemic one, which were only partly interdependent and overlapping. In almost half a century, the DC aimed its rhetoric and politics of delegitimation mainly at those opposition parties it considered as anti-establishment, that is, the Italian Communist Party (PCI) and the neofascist Italian Social Movement (MSI), and the form of delegitimation changed a great deal over this period. However, it is possible to grasp a specific dynamic: from a rigid form of delegitimation, from time to time it became possible to legitimate (at least in part) the opposition parties at different times and in different ways, depending on the changes in the political sphere and in society. It was a process full of contradictions and ambiguities within which the political enemy gradually gave way to becoming a political opponent.  相似文献   
13.
Abstract

This article aims to analyse the meaning and implications of cultural rights for cultural policies concerned with sustainable development. Although references to both cultural rights and sustainable development have become widespread within cultural policy documents in recent decades, the actual conceptual and operational implications often remain vague, as an ambitious discourse that may conceal a poverty of resources and capacities. As a result, the ideal horizon suggested by cultural rights and sustainable development may not always be achieved in practice, nor are the mechanisms to achieve it always well known. In this respect, the article aims to dissect the actual requirements posed by cultural rights and sustainable development, including their different notions and areas of synergy and intersections, in order to shed light on relevant cultural policy approaches. To this end, a range of examples taken from a variety of contexts will also be examined as areas of expressed needs or areas of possible solutions.  相似文献   
14.
15.
16.
17.
Within the Near Eastern research canon, the transition to more sedentary lifestyles during the Neolithic is often framed as an economic necessity, linked to plant and animal domestication, climatic change and population stress. In such a framework, an increasingly complex social structure, arising in response to the increasingly complex relations of agricultural production, is presumed. For example, some researchers would argue that feasting-based rituals became an arena of social control and an increasingly complex society began to emerge around ritual leadership and monumental ritual architecture. Yet the research projects conducted at many Near Eastern sites indicate neither that sedentism can be directly linked to the requirements of agriculture, nor that the presence of monumental architecture can be successfully associated with social control based on unequal redistribution of agricultural surplus. While ritual activity appears to be central during the Neolithic, two important questions remain to be explored: (1) what exactly did the rituals control, given that the societies under consideration are commonly perceived to have an ‘egalitarian’ ethos?; and (2) what happened to the ritual control in the second half of the PPNB, when ritual architecture completely disappears from the archaeological record at a time of increased reliance on agriculture? Through a critical review of the use of terms like ‘sedentism’, ‘egalitarianism’ and ‘ritual’, I argue that the architecture of the Early Neolithic is related to the management of social relationships through symbolic place-making activities. Based on a comparative review of burial activity, building continuity and the use of symbolic imagery, I examine the symbolic construction of some of the earliest examples of long-term occupational focus in southeast Anatolia, such as Hallan Çemi, Demirköy, Körtik Tepe, Hasankeyf Höyük, Gusir Höyük, Göbekli Tepe, Çayönü and Neval? Çori, in an attempt to understand the social factors behind the emergence and demise of Early Neolithic monumental architecture. The evidence from the above-mentioned sites suggests that Early Neolithic place-making reflects community formation at a variety of scales, at the center of which lay the continuous reinvention of kinship concepts. While some sites, with concentrations of burials, may have become the locus for construction of more intimate local place-based networks, other sites, such as Göbekli Tepe, may have integrated the extended networks. Arguably, the formation of large scale networks during the PPNA posed a threat to local groups. Thus, a focus on local group formation and close control of social exchanges may have begun during the early PPNB, and the places such as Göbekli Tepe may have fallen out of use during this process. In the context of the symbolism and figurine evidence, I further argue that sex and gender may have become important issues, both in the formation of place-communities during the late PPNA—early PPNB, and in the emergence of autonomous households during the later PPNB.  相似文献   
18.
Abstract

This article aims at a better comprehension of urban–rural interactions as a spatial concept and its utilization for spatial and regional policies. Based on literature review and on interviews with planners and experts, the article explores how the concept of urban–rural interactions is defined, characterized and structured. The understanding of urban and rural, how they are connected provides a basis for capturing complexities and development of urban–rural interactions. The study, reviews urban–rural policies and practises in Latvia. Contemporary built-up areas and lifestyles are influenced by imprints of past urban–rural interactions. Aspects of contextuality, cross-sectorality and informality have to be taken into consideration when urban–rural interactions are applied to the policy field. The article introduces a typology to capture both the diversity and particularity of places in terms of urban–rural connectivity. An insight is given how the current Latvian local government territorial structure can contribute to building target-oriented urban–rural partnerships.  相似文献   
19.
Investment is an important decision for economic development, balanced growth and public welfare. There are many factors influencing investment. Thus, investment must be evaluated with multidimensional methods. Using taxonomy and principal component analysis this study attempts to determine appropriate investment areas in planned provinces in the Black Sea Region. Analyses were based on a number of demographic, economic, health, education, employment and cultural indicators. Results indicated that provinces were grouped into four clusters. Gümü?hane and Bayburt were determined to have the highest priority for investment in the manufacturing industry.  相似文献   
20.
Elimination of extraneous DNA in fossil specimens is of paramount importance for the successful isolation and analysis of authentic DNA; this is especially true when the specimens are of human origin. Bones and teeth are commonly decontaminated with bleach containing the powerful oxidising hypochlorite ion. The procedures involve either submersion in or wiping with the chlorine agent. Using the radioactive isotope Cl36 we showed that submersion of fossil teeth in solutions of small ions such as Cl or hypochlorite, ClO, cause that they migrate right into the pulp. This may lead to the unwanted destruction of authentic DNA. However, using pairs of teeth from the remains of four ancient Europeans (1000–2000 YBP) as well as tooth and hair from an Inuit skull (>300 YBP) we provide evidence that at least some endogenous human fossil DNA survives in powdered pulp/dentin that has been submersed in 2% hypochlorite. Further, we show that powdered pulp/dentin deliberately contaminated with huge amounts of a 414 bp PCR product is effectively decontaminated by suspension in 2% hypochlorite for 5 min. Decontamination of fossil material from teeth may therefore be accomplished by a short direct action of hypochlorite on the powdered specimen rather than less controllable and less efficient external treatments of the whole specimen.  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