全文获取类型
收费全文 | 393篇 |
免费 | 15篇 |
专业分类
管理学 | 45篇 |
民族学 | 2篇 |
人口学 | 36篇 |
丛书文集 | 1篇 |
理论方法论 | 31篇 |
综合类 | 3篇 |
社会学 | 164篇 |
统计学 | 126篇 |
出版年
2023年 | 4篇 |
2022年 | 5篇 |
2021年 | 3篇 |
2020年 | 17篇 |
2019年 | 25篇 |
2018年 | 32篇 |
2017年 | 34篇 |
2016年 | 38篇 |
2015年 | 7篇 |
2014年 | 17篇 |
2013年 | 59篇 |
2012年 | 52篇 |
2011年 | 20篇 |
2010年 | 13篇 |
2009年 | 14篇 |
2008年 | 9篇 |
2007年 | 8篇 |
2006年 | 4篇 |
2005年 | 6篇 |
2004年 | 6篇 |
2003年 | 6篇 |
2002年 | 3篇 |
2001年 | 6篇 |
2000年 | 5篇 |
1999年 | 1篇 |
1997年 | 4篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1987年 | 1篇 |
1982年 | 1篇 |
1979年 | 1篇 |
1974年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有408条查询结果,搜索用时 500 毫秒
71.
72.
While firm internationalization processes have been understood as being dynamic, the dimension of speed has rarely been the main focus of research efforts, which, until a decade ago, focused principally on explaining sequences of entry modes and choices of markets. The emergence of the study of international entrepreneurship has enhanced the role of speed, although this has usually been measured in terms of the time lag between a firm's foundation and its initial international action, with little attempt at defining and explaining the speed of the process once it is under way. This study reviews the concept of speed from an internationalization perspective, describes the multidimensional nature of the concept and sets out the different aspects that link timescales with the types of changes – continuous and discontinuous – that take place during internationalizing processes. The paper concludes with a research agenda as a guide for future work on considering the role of speed in the internationalization process. 相似文献
73.
José Dinis-Carvalho Francisco Moreira Sara Bragança Eric Costa Anabela Alves Rui Sousa 《生产规划与管理》2013,24(3):235-247
Value Stream Mapping (VSM) is a very popular tool in lean environments to represent production flows, mapping value stream of a product or family of products, and helps to identify some types of waste. Although very popular, this tool has some limitations as already described in many publications, especially in terms of restrictions in showing most types of waste as well as in its inability to represent various production routes. The purpose of this study is to introduce the waste identification diagram (WID), a new tool to represent production units with its different forms of waste, which overcomes some VSM limitations. The originality of WID comes from the use of its symbols’ dimensions to convey, in a visual and immediate way, relevant information about a production unit. In this paper, WID is applied on a production unit of a lift manufacturer, for testing its performance and comparing it to VSM. The main findings are that WID is in general more effective than VSM in terms of representation of complex production units and in terms of identification of more forms of waste. WID must however overcome some of its limitations such as the lack of information-flow representation and the links to suppliers and clients. 相似文献
74.
Flavio Francisco Marsiglia Stephen Kulis Michael L. Hecht 《Journal of research on adolescence》2001,11(1):21-48
This article explores differences in the self‐reported drug use and exposure to drugs of an ethnically diverse group of 408 seventh‐grade students from a large city in the southwest. We contrast the explanatory power of ethnic labels (African American, non‐Hispanic White, Mexican American, and mixed ethnicity) and two dimensions of ethnic identity in predicting drug use. One dimension focuses on perceived ethnically consistent behavior, speech, and looks, while the other gauges a sense of ethnic pride. Ethnic labels were found to be somewhat useful in identifying differences in drug use, but the two ethnic identity measures, by themselves, did not generally help to explain differences in drug use. In conjunction, however, ethnic labels and ethnic identity measures explained far more of the differences in drug use than either did alone. The findings indicate that the two dimensions of ethnic identity predict drug outcomes in opposite ways, and these relations are different for minority students and non‐Hispanic White students. Generally, African American, Mexican American, and mixed‐ethnicity students with a strong sense of ethnic pride reported less drug use and exposure, while ethnically proud White students reported more. Ethnic minority students who viewed their behavior, speech, and looks as consistent with their ethnic group reported more drug use and exposure, while their White counterparts reported less. These findings are discussed, and recommendations for future research are provided. 相似文献
75.
Francisco Javier García-Castilla Ángel De-Juanas Oliva Eloy Vírseda-Sanz Javier Páez Gallego 《European Journal of Social Work》2019,22(6):897-907
ABSTRACTInformation and communication technologies (ICTs) have enhanced peer communication and contributed to social change and, as such, have become an essential tool in the initial training and professional development of future social work practitioners. In the new millennium, it is particularly important to provide the foundations for delivering appropriate interventions in the fields of social education, social services, healthcare and development cooperation. To face these new challenges, training programmes in the framework of the European Higher Education Area should facilitate the acquisition of skills and competencies through curricula based on ongoing assessment which promote creativity and educational innovation. Through a systematic and comprehensive review of the scientific literature, this article examines the educational potential of e-social work in Spain and the training needs of social workers from an interdisciplinary approach. A critical debate is presented throughout the paper to encourage reflection among professionals. The study highlights the importance of the acquisition of digital skills through the development of educational intervention programmes using the latest technological media and resources with a view to serving citizens in these new spaces of interaction. 相似文献
76.
Nuria Codern Margarita Pla Amaia Saenz de Ormijana Francisco Javier González Enriqueta Pujol Maria Soler Carmen Cabezas 《Risk analysis》2010,30(10):1563-1571
The aim of this qualitative study is to identify the dimensions people used to assess the risk of smoking and then compare them with those used by health professionals in primary healthcare. Five discussion groups were conducted. The field work was carried out in Barcelona (Spain), from February 2005 to January 2006. Data were analyzed following a semantic‐thematic categorical content analysis (ACC‐ts). Results showed that people tend to employ stereotypical discourses when evaluating the risk of smoking. Similarly, they reassess the risk in the context of their life experience and incorporate new nuances to the arguments sustaining their behavior. Once this reassessment takes place, the decision to continue smoking emerges, and smokers come up with additional arguments justifying their habit (i.e., age, benefits related to costs). Professionals are aware of this process and its multidimensional nature. Nevertheless, their discourse loses this multidimensional feature when discussing the strategies they use at smoking cessation interventions. This qualitative study increases the understanding of various meanings that people attribute to their life experience. These assumptions may be useful for developing health practices that are closer to people. As a practical utility of these results, it would be interesting to apply a preliminary assessment of the different meanings that people attribute to smoking from their life context in risk communication. 相似文献
77.
We discuss here an alternative approach for decreasing the bias of the closed-form estimators for the gamma distribution recently proposed by Ye and Chen in 2017. We show that, the new estimator has also closed-form expression, is positive, and can be computed for n?>?2. Moreover, the corrective approach returns better estimates when compared with the former ones. 相似文献
78.
79.
Mirko Antino Francisco Gil-Rodríguez Alfredo Rodríguez-Muñoz Stefano Borzillo 《Revista de Psicología Social》2014,29(3):589-608
Positive leadership is considered a fundamental factor which contributes significantly to the development of healthy organizations. Positive leadership has been address via other leadership models, primarily transformational and authentic leadership, with which some affinities have been established. Although there is a large body of literature on positive leadership, especially related to its practical aspects, the construct is not properly delimited and there are only a few relevant contributions on how to measure it. The purpose of this paper is to conduct a pilot study to examine the psychometric properties of a reduced version of the PLAS (Positive Leadership Assessment Scale). Results from a confirmatory factorial analysis show that a five-correlated factors model achieves a good fit with the empirical data (on a sample of Spanish students). Likewise, this study also offers a range of evidence of validity, showing a relationship with the constructs of both transformational and authentic leadership and engagement. 相似文献
80.
L. Mhalla M. de Carvalho V. Chavez‐Demoulin 《Scandinavian Journal of Statistics》2019,46(4):1141-1167
We propose a vector generalized additive modeling framework for taking into account the effect of covariates on angular density functions in a multivariate extreme value context. The proposed methods are tailored for settings where the dependence between extreme values may change according to covariates. We devise a maximum penalized log‐likelihood estimator, discuss details of the estimation procedure, and derive its consistency and asymptotic normality. The simulation study suggests that the proposed methods perform well in a wealth of simulation scenarios by accurately recovering the true covariate‐adjusted angular density. Our empirical analysis reveals relevant dynamics of the dependence between extreme air temperatures in two alpine resorts during the winter season. 相似文献