全文获取类型
收费全文 | 163篇 |
免费 | 15篇 |
出版年
2023年 | 6篇 |
2021年 | 1篇 |
2020年 | 8篇 |
2019年 | 12篇 |
2018年 | 24篇 |
2017年 | 13篇 |
2016年 | 9篇 |
2015年 | 8篇 |
2014年 | 5篇 |
2013年 | 37篇 |
2012年 | 8篇 |
2011年 | 3篇 |
2010年 | 5篇 |
2009年 | 5篇 |
2008年 | 3篇 |
2007年 | 2篇 |
2006年 | 1篇 |
2004年 | 1篇 |
2003年 | 1篇 |
2002年 | 2篇 |
2001年 | 2篇 |
2000年 | 1篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 3篇 |
1994年 | 3篇 |
1993年 | 4篇 |
1992年 | 3篇 |
1986年 | 1篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1976年 | 1篇 |
1969年 | 1篇 |
排序方式: 共有178条查询结果,搜索用时 15 毫秒
101.
102.
103.
104.
105.
Being competitive requires continuously performing product and process innovations nowadays. Because of this reason, the absorption of externally generated R&D is increasingly important for companies. It is well known that companies differ regarding their aptitude for knowledge absorption. This paper aims at the identification of different firm profiles by means of the identification and valuation of drivers that support the absorption of external R&D. For this, we have carried out an empirical work that is based on a random sample of companies located in the northern Spanish county of Biscay. We identify four company conglomerates according to their attitude to absorb externally generated R&D. 相似文献
106.
ABSTRACT This paper provides an empirical study of the determinants of income inequality across regions of the EU. Using the European Community Household Panel dataset for 102 regions over the period 1995–2000, it analyses how microeconomic changes in human capital distribution affect income inequality for the population as a whole and for normally working people. The different static and dynamic panel data analyses conducted reveal that the relationship between income per capita and income inequality, as well as between a good human capital endowment and income inequality is positive. High levels of inequality in educational attainment are also associated with higher income inequality. The above results are robust to changes in the definition of income distribution and may be interpreted as a sign of the responsiveness of the EU labor market to differences in qualifications and skills. Other results indicate that population ageing, female participation in the labor force, urbanization, agriculture, and industry are negatively associated to income inequality, while unemployment and the presence of a strong financial sector positively affect inequality. Finally, income inequality is lower in social‐democratic welfare states, in Protestant areas, and in regions with Nordic family structures. 相似文献
107.
Nina J. Morris Hazel Christie Jacob Barber 《Journal of Geography in Higher Education》2019,43(3):343-361
There is a widespread debate in higher education about how best to support students in becoming more active and engaged learners. Geographers have occupied a central position in these debates having long been concerned with understanding and creating teaching spaces that encourage active and experiential learning. Recent pedagogical innovations have seen a movement away from a reliance on lecturing as the key pedagogical method and a redefinition of the roles of both teacher and learner. In this paper, we look at the role that assessment, specifically assessed blogs, can play in enhancing student engagement. Drawing on interviews with Course Organizers from two case study courses, student focus groups, and course evaluation surveys we show the various ways in which blogs enhance engagement. We draw attention to how blogging enabled students to personalize their learning and make it more meaningful to them, as well as to foster greater engagement with the course materials including making connections across the course as a whole. Further, we show how blogging enabled students to develop transferable skills that would stand them in good stead for the rest of their time at university and in their future professional lives. 相似文献
108.
Leonor Peña-Chocarro Guillem Pérez Jordà Jacob Morales Mateos Lydia Zapata 《Environmental Archaeology》2015,20(4):379-389
AbstractThis paper presents ethnographic, historic and archaeological data from the western Mediterranean in order to explore the variability of storage methods and the various strategies that may have existed in the past in this region. The paper includes ethnographic information on traditional storage methods collected in farming communities in northern Morocco (Rif area). We record the use of plant fibres such as canes (Arundo donax), dwarf palm (Chamaerops humilis), esparto grass (Stipa tenacissima) and dis (Ampelodesmos mauritanica) to make containers. Recipients made of cow dung and unfired clay, as well as underground silos, have been also used in this region to store food. In addition, we explore historical and ethnohistorical data on the use of large storage structures, including the study of communal granaries, a particular type of granary located at inaccessible places, such as cliff faces or mountain tops, or within fortified buildings, from which harvests can be easily protected and defended. We also examine the archaeological evidence of storage strategies in the Iberian Peninsula during prehistoric times. The paper informs of the large variety of systems and materials used, the functioning of storage structures, and more generally, provides a framework for reflecting on the enormous diversity of solutions that could have existed in the past and that may have left little or none archeological traces. 相似文献
109.
Nawa Sugiyama Raúl Valadez Azúa Bernardo Rodríguez Galicia 《Archaeological and Anthropological Sciences》2017,9(1):61-81
The compilation of the last 40 years of zooarchaeological exploration at Teotihuacan, Mexico, provides a unique opportunity to create more nuanced models of New World vertebrate consumption that did not focus on domesticated animals (dog and turkey). Any single model of ancient food systems fails to represent how varied ecological and social contexts led to a complex web of adaptations, and here, it is argued that Teotihuacan’s arid, highland, and urban environment contributed to a distinct faunal acquisition strategy. Intra-site variation and diverse degrees of animal procurement and management were practiced throughout the site. For example, the low proportion of deer compared to the abundant evidence of rabbit/hare consumption suggests small-scale animal management and breeding programs in the residential complexes supplemented with opportunistic garden hunting and meat purchased through a market economy. Such foodstuffs would have been both more predictable and readily made available to organize large feasting events, a possibility that is strengthened by evidence of extraordinarily high abundances of rabbits in ceremonial contexts. 相似文献
110.