全文获取类型
收费全文 | 35690篇 |
免费 | 516篇 |
国内免费 | 1篇 |
专业分类
管理学 | 4913篇 |
民族学 | 217篇 |
人才学 | 1篇 |
人口学 | 4456篇 |
丛书文集 | 101篇 |
教育普及 | 1篇 |
理论方法论 | 2807篇 |
综合类 | 726篇 |
社会学 | 16632篇 |
统计学 | 6353篇 |
出版年
2023年 | 162篇 |
2022年 | 115篇 |
2021年 | 178篇 |
2020年 | 422篇 |
2019年 | 617篇 |
2018年 | 2247篇 |
2017年 | 2513篇 |
2016年 | 1724篇 |
2015年 | 572篇 |
2014年 | 732篇 |
2013年 | 4650篇 |
2012年 | 1247篇 |
2011年 | 1859篇 |
2010年 | 1595篇 |
2009年 | 1254篇 |
2008年 | 1429篇 |
2007年 | 1542篇 |
2006年 | 626篇 |
2005年 | 789篇 |
2004年 | 807篇 |
2003年 | 731篇 |
2002年 | 640篇 |
2001年 | 648篇 |
2000年 | 575篇 |
1999年 | 561篇 |
1998年 | 427篇 |
1997年 | 361篇 |
1996年 | 406篇 |
1995年 | 374篇 |
1994年 | 330篇 |
1993年 | 348篇 |
1992年 | 401篇 |
1991年 | 382篇 |
1990年 | 381篇 |
1989年 | 327篇 |
1988年 | 341篇 |
1987年 | 295篇 |
1986年 | 321篇 |
1985年 | 344篇 |
1984年 | 299篇 |
1983年 | 285篇 |
1982年 | 221篇 |
1981年 | 198篇 |
1980年 | 214篇 |
1979年 | 227篇 |
1978年 | 197篇 |
1977年 | 161篇 |
1976年 | 129篇 |
1975年 | 139篇 |
1974年 | 130篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
81.
Research has repeatedly demonstrated that parent and child reports of child behavior and emotional functioning often do not agree in terms of symptom severity or even symptom presence. Given the potential clinical impact that discrepant reports may have on the therapeutic process, a significant amount of research has addressed the factors influencing this observed discrepancy. Traditionally, this research has evaluated the impact of demographic factors on mean differences and obtained correlation coefficients between parent and child reports. The current research improves upon previous research in this area in two ways. First, the current research uses parent and child measures with identical rather than similar items as is commonly found in previous research. Second, the current research moves beyond identifying demographic influences on discrepant reports by explaining observed discrepancies in terms of differences in parent and child perceptions of typical child behavior.David Carlston and Benjamin Ogles are affiliated with Department of Psychology, Ohio University, Athens, USA.Funding for this project was provided by the Ohio Department of Mental Health. 相似文献
82.
D. E. Super's (1957) theory of career development has long been of interest to careers researchers (M. Savickas, 1994; S. C. Whiston & B. K. Brecheisen, 2002). Its insightful illustration of career stages has made it widely applied by careers practitioners. Image norms may influence the career decisions and developmental tasks inherent in each stage. An image norm is the belief that individuals must present or possess a certain image, consistent with occupational, organizational, or industry standards, in order to achieve career success. Understanding the effects of image norms across D. E. Super's (1957) career stages has important implications for individuals, organizations, and career counseling professionals. 相似文献
83.
Michael R. Welch Roberto E. N. Rivera Brian P. Conway Jennifer Yonkoski Paul M. Lupton Russell Giancola 《Sociological inquiry》2005,75(4):453-473
This article provides an overview of social trust, examining its various aspects and components. Trust is best understood in a sociological sense by focusing on its important relational characteristic. Following this lead, the article discusses briefly how social trust relates to social capital and examines factors that shape the development of social trust, along with outcomes related to variations in trust, classifying them by analytical level (i.e., individual, community, group, organizational, and societal). The article concludes by assessing the strengths and weaknesses of existing research and by identifying some important questions that have not yet been adequately addressed. 相似文献
84.
We employ vector autoregressive techniques to determine the current state of the labor queue. Unemployment rate differentials
have narrowed in recent years, potentially due to a change in the queue ordering, though a tight labor market and a stable
queue would yield similar results. We find no evidence that the queue ordering has changed, which brings into question the
resiliency of gains made by minority groups. We employ the same techniques to reveal the state of the queue across geographic
regions and find that substantial differences exist across regions, implying variation in the relative labor force status
of demographic groups. 相似文献
85.
土木工程类复合型执业人才培养的研究与实践 总被引:1,自引:0,他引:1
根据复合型执业人才培养模式的要求,对土木工程专业理论课程教学内容进行合并、增删、优化组合;在实践教学环节方面,安排大四学生在施工现场实践近1年,由项目经理、工程监理和发包方驻地工程师进行综合指导。理论与实践紧密结合的复合型执业人才培养的改革实践获得了极好的效果。 相似文献
86.
Hunter LM 《Population research and policy review》2006,25(2):157-174
In many developing regions, women and young girls spend several hours daily in the collection of natural resources. Still the link between these household resource strategies and stakeholder perceptions of development priorities remains unexplored. This project examines this association with survey data representative of the adult population from Ghana’s Coastal Region. Although natural resource scarcity and the sustainability of resource use represent key development challenges, there are others (e.g., energy, sanitation, employment, and educational opportunities). As such, even in the face of natural resource scarcity, individuals may place greater importance on other dimensions of development, especially if household resource strategies are perceived as relatively efficient. The analytical focus here is on water and the results suggest that gender roles shape household water collection strategies, while also shaping these strategies’ perceived opportunity costs. Specifically, Ghanian adults more often see drinking water provision as their primary development need when water sources are distant and/or when male household members collect water (particularly male heads). In the end, I argue that social science inquiry benefits by contextualizing social dynamics within environmental context, particularly within cultural settings in which human subsistence is intimately tied to the state of the natural environment. 相似文献
87.
James P. Davis 《Journal of popular culture》2005,38(6):1011-1021
88.
89.
The authors review the trends in the use of computers in the delivery and support of career guidance and counseling identified at the symposium International Perspectives on Career Development. The papers presented emphasized that 20th‐century computer‐based systems continue to be used, mainly delivered via the World Wide Web. These systems are enhanced through audio, video, graphics, strategies to provide needs assessment, and support by cybercounselors or expert system design. The papers also revealed a new trend: the use of elegant Web sites to store and search immense libraries of resources needed by professionals and clients and to facilitate communication and collaboration among professionals in cyberspace. Concerns, issues, and resources related to many areas, including the readiness of clients to use computer‐based systems, were also raised; existing sources of guidelines are noted. 相似文献
90.
Generalized additive models for location, scale and shape 总被引:10,自引:0,他引:10
R. A. Rigby D. M. Stasinopoulos 《Journal of the Royal Statistical Society. Series C, Applied statistics》2005,54(3):507-554
Summary. A general class of statistical models for a univariate response variable is presented which we call the generalized additive model for location, scale and shape (GAMLSS). The model assumes independent observations of the response variable y given the parameters, the explanatory variables and the values of the random effects. The distribution for the response variable in the GAMLSS can be selected from a very general family of distributions including highly skew or kurtotic continuous and discrete distributions. The systematic part of the model is expanded to allow modelling not only of the mean (or location) but also of the other parameters of the distribution of y , as parametric and/or additive nonparametric (smooth) functions of explanatory variables and/or random-effects terms. Maximum (penalized) likelihood estimation is used to fit the (non)parametric models. A Newton–Raphson or Fisher scoring algorithm is used to maximize the (penalized) likelihood. The additive terms in the model are fitted by using a backfitting algorithm. Censored data are easily incorporated into the framework. Five data sets from different fields of application are analysed to emphasize the generality of the GAMLSS class of models. 相似文献