全文获取类型
收费全文 | 4180篇 |
免费 | 160篇 |
国内免费 | 83篇 |
专业分类
财政金融 | 170篇 |
工业经济 | 170篇 |
计划管理 | 840篇 |
经济学 | 728篇 |
综合类 | 678篇 |
运输经济 | 49篇 |
旅游经济 | 258篇 |
贸易经济 | 454篇 |
农业经济 | 333篇 |
经济概况 | 743篇 |
出版年
2024年 | 15篇 |
2023年 | 60篇 |
2022年 | 78篇 |
2021年 | 131篇 |
2020年 | 149篇 |
2019年 | 110篇 |
2018年 | 92篇 |
2017年 | 139篇 |
2016年 | 115篇 |
2015年 | 145篇 |
2014年 | 339篇 |
2013年 | 435篇 |
2012年 | 354篇 |
2011年 | 403篇 |
2010年 | 330篇 |
2009年 | 253篇 |
2008年 | 258篇 |
2007年 | 214篇 |
2006年 | 207篇 |
2005年 | 168篇 |
2004年 | 109篇 |
2003年 | 86篇 |
2002年 | 47篇 |
2001年 | 53篇 |
2000年 | 44篇 |
1999年 | 21篇 |
1998年 | 17篇 |
1997年 | 9篇 |
1996年 | 9篇 |
1995年 | 3篇 |
1994年 | 8篇 |
1993年 | 4篇 |
1992年 | 1篇 |
1990年 | 1篇 |
1985年 | 3篇 |
1984年 | 4篇 |
1983年 | 5篇 |
1982年 | 1篇 |
1980年 | 2篇 |
1979年 | 1篇 |
排序方式: 共有4423条查询结果,搜索用时 78 毫秒
81.
Dan Davies 《International Journal of Technology and Design Education》2003,13(3):207-221
This article reports on one outcome from a three-year study with pre-service primary teachers at Goldsmiths' College, University
of London. The purpose of the study was to evaluate the influence of participants' prior educational experience and beliefs
about the relationship between design & technology (D&T) and science on their lesson planning for these subjects during school
placements. Data from the study support a three-domain model of pre-service teachers' thinking and action. When operating
within the pragmatic domain, participants are primarily concerned with survival in the classroom, resulting in short-term planning which may contradict
their epistemological and curricular beliefs. In the pedagogical domain, the focus shifts from the pre-service teacher themselves and their immediate survival to the learning potential of
the activities they plan. There is evidence that some participants have progressed to operating within a philosophical domain, leading to clasroom practice which reflects and re-conceptualises pre-service teachers' core beliefs about the nature
of, and relationship between, D&T and science.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
82.
Following a review of current research in children's learning in technology education, and an examination of the kinds of knowledge demanded in contemporary technology education programs in elementary schools, I argue that what is needed in early technology education programs is the scaffolding of what I am calling technological stance. This construct acknowledges the socio-cultural character of technology as a human endeavor. In contrast to programs which are oriented to application of conceptual and procedural knowledge or to programs in which knowledge is generated through interpretation of interactions with materials and tools, programs which support technological stance position learners as critical inquirers into both tool-related and discursive practices of technology. 相似文献
83.
Much published work over the years has pointed to the differences between business-to-consumer (B2C) and business-to-business (B2B) marketing. An undesirable by-product of this sometimes misdirected distinction is that managers working within B2B environments have generally not considered the use of what are seen as B2C techniques, such as multivariate statistical analysis. This article is structured in three parts. First, the argument for the similarities between B2B and B2C marketing is developed; second, three different multivariate statistical techniques are presented and combined to form a practical tool kit for use by B2B managers on strategic, operational, and tactical levels; and third, the results of an application of the techniques in the life science research chemicals industry is reported, demonstrating that the tool kit substantially enhanced managerial understanding of customer decision processes. 相似文献
84.
Joy Y. Zhang 《Journal of Risk Research》2018,21(1):68-82
AbstractUlrich Beck fundamentally transformed our way of thinking about human interdependence through his three core theses on risk, individualisation and cosmopolitanisation. However, two commonly observed deficiencies in Beck’s grand theory were its Eurocentric orientation and a lack of empirical grounding. Based on 5 focus groups and 14 interviews with participants of the emerging Clean Food Movement in China, this paper extends the Beckian discussion outside Europe. Through examining how individuals understand both ‘traditional’ and ‘new’ risks associated with contemporary food consumption, this paper demonstrates that in the face of unpredictable and incalculable harms, risks are not seen as a ‘thing’, but are translated into ‘causal relations’. Subsequently, for Chinese stakeholders, the best way to safeguard food risks is to enact more visible and functioning interdependent relations in the food system. This in turn has given rise to new forms of communities which cut across conventional geographic, socio-economic and political boundaries. The paper deepens a Beckian theorisation in two ways. First, it demonstrates that the ‘enabling’ effect of risk towards a cosmopolitan society is not limited to obvious global crises, such as climate catastrophes and financial meltdown. In fact, the mundane yet intimate concern of putting ‘good’ food in one’s dinner bowl already presses actors to form new social solidarities that are cosmopolitan in nature. Second, it goes beyond Beck’s assertion that the risk society has culminated in a cosmopolitan moment, and explores how a performative cosmopolitan community reshapes the ‘relations of definition’ to mitigate risks on the ground. 相似文献
85.
《Futures》2016
Complexity science is increasingly cited as an essential component of a Futures Studies (FS) capable of assisting with the wide-ranging and complex societal problems of the 21st century. Yet, the exact implications of complexity science for FS remain somewhat opaque. This paper explicitly sets out the challenges for FS that arise from six complexity science concepts: (1) irreversibility of time (2) path dependence 3) sensitivity to initial conditions (4) emergence and systemness (5) attractor states (6) complex causation. The discussion highlights the implications of these challenges for FS tools such as horizon scanning and weak signals, and sets out the benefits of overcoming the challenges to create an explicitly complexity-orientated FS. The discussion concludes with a set of questions summarising the challenge for FS from complexity science with the aim of stimulating a discussion as to how they can be met. The concluding remarks make some initial suggestions in this regard. 相似文献
86.
近年来增强化学发光技术得到快速发展,在生物学和医学中得到逐步应用,具有很大的应用价值。本文就增强化学发光技术的工作原理、增强化学发光的基因加测系统、增强化学发光的酶联免疫研究、增强化学发光的蛋白质检测系统、增强化学发光的寡核苷酸标记与检测系统进行全面分析,以促进增强化学发光技术在生物学与医学中的实践应用更加广泛。 相似文献
87.
本文以美国阿拉莫学院(Alamo Colleges)为例,总结分析其成功办学经验,提出对我国现代职业教育的建立和筹资的若干启示和建议。 相似文献
88.
Studies have demonstrated the inadequacy of relying on existing administrative boundaries or simple proximity to define an affected community. The proposal and siting of hazardous facilities can have a range of impacts upon people across wide areas, with some more affected than others as a result of living with the physical impacts of construction or the fear associated with perceived risk. We term those most affected the directly affected population and propose a two-stage model for identifying an affected community which places those most affected at the centre of the definition. The second stage is to identify the relationships those most affected have with the wider elements of the sense of community to discover the existing community or communities which are affected. Illustrated by the siting of a low-level radioactive waste disposal facility at Dounrey in the north of Scotland, we show that elements of the lived community experience may have very different shapes, extents and conflicting interests which pose challenges for their incorporation into a siting process. The two-stage model presented in this paper, by placing those most directly affected at the centre and working from there out into the existing communities, identifies issues early in any siting process to improve their incorporation and amelioration. 相似文献
89.
John Joe Schlichtman Jason Patch 《International journal of urban and regional research》2014,38(4):1491-1508
Schlichtman and Patch suggest that there is an elephant sitting in the academic corner: while urbanists often use ‘gentrification’ as a pejorative term in formal and informal academic conversation, many urbanists are gentrifiers themselves. Even though urbanists have this firsthand experience with the process, this familiarity makes little impact on scholarly debate. There is, Schlichtman and Patch argue, an artificial distance in accounts of gentrification because researchers have not adequately examined their own relationship to the process. Utilizing a simple diagnostic tool that includes ten common aspects of gentrification, they compose two autoethnographic memoirs to begin this dialogue. 相似文献
90.
李振兴 《全球科技经济瞭望》2014,(2):64-69
英国的技术前瞻研究工作发源于1994年的技术预测计划,现已成为英国政府的一项常规工作。英国技术前瞻研究组挂靠在商业、创新和技能部下属的政府科学办公室,有优秀的研究队伍和稳定的经费支持,其开展的项目涉及新兴科学和技术面临的挑战和机遇以及围绕科技能发挥作用的重大社会问题,例如,全球变化、应对肥胖和洪涝灾害等。技术前瞻研究项目的研究报告和提出的有关建议,不仅对英国政府制定政策提供了重要参考,也对国际社会关于一些重大问题的判断和应对措施产生了较大影响。通过对英国技术前瞻研究工作的由来、已经完成和正在开展的项目、核心研究团队、项目的遴选标准和特点等进行系统介绍,并以案例的形式阐述了其前瞻研究项目对政府部门的影响,旨在为我国开展相关工作提供参考借鉴。 相似文献