全文获取类型
收费全文 | 335篇 |
免费 | 12篇 |
专业分类
管理学 | 50篇 |
民族学 | 2篇 |
人口学 | 39篇 |
理论方法论 | 33篇 |
社会学 | 153篇 |
统计学 | 70篇 |
出版年
2024年 | 1篇 |
2023年 | 2篇 |
2022年 | 5篇 |
2021年 | 5篇 |
2020年 | 16篇 |
2019年 | 21篇 |
2018年 | 16篇 |
2017年 | 21篇 |
2016年 | 12篇 |
2015年 | 8篇 |
2014年 | 19篇 |
2013年 | 70篇 |
2012年 | 22篇 |
2011年 | 20篇 |
2010年 | 14篇 |
2009年 | 11篇 |
2008年 | 6篇 |
2007年 | 11篇 |
2006年 | 6篇 |
2005年 | 7篇 |
2004年 | 3篇 |
2003年 | 7篇 |
2002年 | 4篇 |
2001年 | 3篇 |
2000年 | 4篇 |
1999年 | 4篇 |
1998年 | 2篇 |
1997年 | 3篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 3篇 |
1993年 | 3篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1984年 | 2篇 |
1982年 | 1篇 |
1979年 | 1篇 |
1973年 | 1篇 |
1968年 | 2篇 |
1967年 | 1篇 |
排序方式: 共有347条查询结果,搜索用时 234 毫秒
141.
Automotive sound systems vary widely in terms of functions and way of use between different brands and models what can bring difficulties and lack of consistency to the user. This study aimed to analyze the usability of car stereo commonly found in the market. Four products were analyzed by task analysis and after use reports and the results indicate serious usability issues with respect to the form of operation, organization, clarity and quality of information, visibility and readability, among others. 相似文献
142.
Saavedra-Robinson L Quintana LA Fortunato Leal LD Niño M 《Work (Reading, Mass.)》2012,41(Z1):1639-1646
Factors related to the height of the load and the frequency of handling have become a way to predict the acceptable standard weight lifted for workers whose main task is the manual lifting of materials and measuring the conditions is important to determine a maximum weight lifted. This study was conducted to twenty (20) workers between eighteen (18) and forty (40) years old with a minimum six months experience and belonging to the warehouse and packaging area of a dairy products company. Consideration was given to three different heights such as knuckle, shoulder and total height as well as frequencies of 2, 4 and 6 times per minute. Average values for lifted weight were 17.9306 ± 2.37 kg. The conclusions and recommendations included a review of legislation related to Colombian maximum acceptable weight of lifting due to the current law does not match the acceptable weight handled in this research. 相似文献
143.
This paper studies how consumers' reported practices related to food, energy use in housing, daily mobility, and tourism are combined and structured. Social practice theories are the main theoretical framework of this research. Data are drawn from a sensitisation campaign run by the WWF-Belgium and the methods developed to attempt to translate the theoretical focus to practices. Results show that both the low number of ‘green’ practices reported and the multiplicity of combinations of practices indicate a rather important compartmentalisation of ‘green’ practices and seem to refute the hypothesis of vast domino effects in these four different areas. In addition, a wider openness to information on environmentally friendlier practices is associated with a larger number of such practices, which raises questions about the design of such campaigns. Finally, there is no conventionalised way of linking practices and commitments taken by the respondents to reduce their environmental impact. A few policy recommendations are derived for sensitisation campaigns that often assume domino effects between ‘green’ practices, and for tools dealing with personal carbon awareness. 相似文献
144.
Luis A. Gil-Alana 《Journal of applied statistics》2015,42(7):1531-1546
This paper deals with the analysis of the MET Office Hadley Centre's sea surface temperature data set (HadSST3) by using long-range dependence techniques. We incorporate linear and segmented trends using fractional integration, and thus permitting long memory behavior in the detrended series. The results indicate the existence of warming trends in the three series examined (Northern and Southern Hemispheres along with global temperatures), with orders of integration which are in the range (0.5, 1) and thus implying nonstationary long memory and mean reverting behavior. This is innovative compared with other works that assume short memory behavior in the detrended series. Allowing for segmented trends two features are observed: increasing values in the degree of dependence of the series across time and significant warming trends from 1940 onwards. 相似文献
145.
146.
Thomas W. Gillespie John de Goede Luis Aguilar G. Darrel Jenerette Geoffrey A. Fricker Meghan L. Avolio Stephanie Pincetl Timothy Johnston Lorraine W. Clarke Diane E. Pataki 《Urban Ecosystems》2017,20(4):839-849
There has been an increasing interest in urban forests and the levels of biodiversity they contain. Currently there are no spatially explicit maps of tree species richness in urban areas. This research tests and identifies GIS and remote sensing metrics (climate, area, productivity, three-dimensional structure) hypothesized to be associated with species richness in native forests and identifies methods that can be applied to predict and map tree species richness in cities. We quantified tree species richness, floristic composition, and structure in 28 1-ha plots in the city of Los Angeles. Climate and remote sensing metrics from high-resolution aerial imagery (10 cm), QuickBird (60 cm), Landsat (30 m), MODIS (250 m), and airborne lidar (2 m) were collected for each plot. There were 1208 individual stems and 108 trees identified to species. Species richness ranged from 2 to 31 species per ha and averaged 17 species per ha. Tree canopy cover from QuickBird explained the highest portion of variance (54%) in tree species richness followed by NDVI from Landsat (42%). Tree species richness can be higher in residential urban forests than native forests in the United States. Spatially explicit species richness maps at 1 ha can be created and tested for cities in order to identify both hotspots and coldspots of tree species richness and changes in species richness over time. 相似文献
147.
148.
149.
Luis Bernardo Mejia Guinand 《Public Organization Review》2016,16(4):477-491
The central planning agencies in Latin America have undergone multiple transformations in their structural design. These agencies came to life during the late 1950s in response to a development strategy that required the state to provide long-run direction to development by means of economic planning. Five decades later, the same agencies were redeployed to perform an open-market development strategy. What explains the fact that the same agency, created with the purpose of planning economic development, has functioned across time and governments with sharp economic, and political differences? Following Mahoney and Thelen (2010), this paper highlights the idea that the basic properties of institutions provide some forceful elements that permit change. In this sense, the document shows how veto possibilities and compliance are key variables in understanding the changing role of the central planning offices in Latin America. 相似文献
150.
Pablo Fossa María Elisa Molina Sofía de la Puerta Michelle Barr Luis Tapia‐Villanueva 《Australian and New Zealand Journal of Family Therapy》2016,37(1):105-118
This article focuses on dialogic discursive dynamics present in couples’ conversations about unresolved conflicts. The phenomenon of conflict is addressed as a semiotically mediated process of co‐construction of the self and the relationship. The purpose of this article is to report on patterns of meaning construction in couples’ conflict, with the identification of strategies that promote or hinder resolution. A qualitative exploratory approach was used to focus on the interactional process at the micro‐processing level. Eight married couples participated in the study. The procedure considered asking the couple to discuss unresolved conflict. Recorded data of couples’ dialogues were transcribed to text and assessed through semiotic analysis using a microgenetic protocol (Molina, Del Río, & Tapia, 2015). The results document the use of strategies for conflict regulation such as psychological distancing, opposition, and generalisation on the border between protecting the bond and regulating tension. The dynamics of non‐resolution manifested in polarisation and rigid patterns with increased tension. The ‘in‐motion’ nature of dialogue about conflict is pushed by the semiotic tension that induces variations in subjective positions manifested in speech and actions. 相似文献