全文获取类型
收费全文 | 5147篇 |
免费 | 102篇 |
专业分类
管理学 | 681篇 |
民族学 | 24篇 |
人口学 | 525篇 |
丛书文集 | 20篇 |
教育普及 | 1篇 |
理论方法论 | 487篇 |
综合类 | 59篇 |
社会学 | 2389篇 |
统计学 | 1063篇 |
出版年
2023年 | 32篇 |
2021年 | 50篇 |
2020年 | 89篇 |
2019年 | 116篇 |
2018年 | 128篇 |
2017年 | 194篇 |
2016年 | 140篇 |
2015年 | 81篇 |
2014年 | 133篇 |
2013年 | 783篇 |
2012年 | 161篇 |
2011年 | 146篇 |
2010年 | 124篇 |
2009年 | 110篇 |
2008年 | 137篇 |
2007年 | 127篇 |
2006年 | 148篇 |
2005年 | 112篇 |
2004年 | 113篇 |
2003年 | 76篇 |
2002年 | 98篇 |
2001年 | 131篇 |
2000年 | 122篇 |
1999年 | 132篇 |
1998年 | 101篇 |
1997年 | 86篇 |
1996年 | 93篇 |
1995年 | 68篇 |
1994年 | 60篇 |
1993年 | 87篇 |
1992年 | 89篇 |
1991年 | 97篇 |
1990年 | 78篇 |
1989年 | 79篇 |
1988年 | 61篇 |
1987年 | 69篇 |
1986年 | 62篇 |
1985年 | 75篇 |
1984年 | 66篇 |
1983年 | 69篇 |
1982年 | 44篇 |
1981年 | 40篇 |
1980年 | 37篇 |
1979年 | 47篇 |
1978年 | 38篇 |
1977年 | 33篇 |
1976年 | 34篇 |
1975年 | 32篇 |
1974年 | 40篇 |
1973年 | 29篇 |
排序方式: 共有5249条查询结果,搜索用时 15 毫秒
141.
Shumway ST Kimball TG Korinek AW Arredondo R 《Journal of marital and family therapy》2007,33(2):134-148
Employee assistance professionals are expected to be proficient at intervening in organizations and creating meaningful behavioral change in interpersonal functioning. Because of their training in family systems theories and concepts, marriage and family therapists (MFTs) are well suited to serve organizations as "systems consultants." Unfortunately, the authors were unable to identify any family systems-based models for organizational intervention that have been empirically tested and supported. In this article, the authors present a family systems-based model of intervention that they developed while working in an employee assistance program (EAP). They also present research that was used to refine the model and to provide initial support for its effectiveness. 相似文献
142.
Much of the current knowledge pertaining to information technology (IT) and decision making is based on decades old technologies that revolved around a central computing function and application-specific systems. The purpose of this research is to examine the IT decision-making relationship within the emerging organizational computing (OC) environment permeated by spontaneous utilization of both application-and nonapplication-specific computing and communication technologies. Specifically, this study seeks to explore managers' perceptions of the emerging OC environment as a facilitator of their decision-making activities. To achieve a higher level of clarity than previous works, a two-dimensional research framework is developed with the IT dimension consisting of computing and communication, and the decision-making dimension differentiated between operational and managerial decisions. A survey instrument was constructed that measured the computing and communication dimensions of information technology use and their perceived effects upon operational and managerial decisions. The major findings of the study confirmed that managers recognize the value of general, nonapplication-specific information technologies in decision making, and that this recognition is highly associated with how intensively these information technologies are used. Additionally, it was found that the two dimensions of IT differ in their relationships to decision making, and that IT usage relates to managerial decisions differently than operational decisions. These study findings have significant implication for practice and research, especially in the context of information resource management in which the primary purpose of the IS function is the delivery of general information service to users rather than the development of specific IS applications. 相似文献
143.
Population Research and Policy Review - This paper examines the impact of school starting age on teenage marriage and motherhood in Vietnam. The investigation uses data from the 2009 Vietnam... 相似文献
144.
Jinks Lu Kniesner Thomas J. Leeth John Lo Sasso Anthony T. 《Journal of Risk and Uncertainty》2020,60(1):53-76
Journal of Risk and Uncertainty - Texas is the only state that does not mandate that employers carry workers’ compensation (WC) insurance coverage. In place of traditional WC, companies can... 相似文献
145.
Sarah A. Font Elizabeth T. Gershoff 《Social policy report / Society for Research in Child Development》2020,33(3):1-40
Foster care provides round-the-clock substitute care for nearly 700,000 U.S. children who are temporarily or permanently separated from their family of origin each year. Each state manages its own foster care system according to federal regulations. Despite numerous large-scale federal policy reforms over the past several decades, substantial concerns remain about the experiences and outcomes of children in the foster care system. The most recent effort to reform foster care, the Family First Prevention Services Act of 2018, attempts to both reduce the use of foster care and increase the quality of care. In this report, we review how policy has shaped the experiences and outcomes of children in foster care, where policy has succeeded, and where it falls short of achieving its goals. We then identify opportunities for federal and state policy to better support the safety, health, and well-being of children in foster care. 相似文献
146.
147.
This study uses Lovejoy and Saxton's (2012) hierarchy of engagement to analyze how nonprofit human service organizations use Facebook and Twitter to engage stakeholders. Their framework has not been applied to this nonprofit subgroup, and most previous scholarship on this topic focuses on just one platform. We also contribute by drawing on organizational theory to better understand variation in the modes of engagement organizations emphasize. Based on our analysis, we add new subcategories to the hierarchy of engagement. In addition, we find that compared to other nonprofit subgroups examined in previous research, the organizations in our sample placed a greater emphasis on using social media messages to ask stakeholders to take action. We report only modest variations in how organizations were using Facebook and Twitter. Finally, according to our results, resource dependence and stewardship theories help explain the modes of engagement organizations prioritize. 相似文献
148.
Urban Ecosystems - Generalist wildlife species often thrive in urban environments because of increased anthropogenic resources. However, human-wildlife interactions, especially if negative, raise... 相似文献
149.
Urban Ecosystems - Critical resources for birds nesting in cities can support populations in spite of the challenges imposed by urbanization, and the identification of such resources can shed light... 相似文献
150.
Technology is pervasive in homes of families with young children, despite evidence for negative associations between infant exposure to screen‐based media and cognitive development that has led the American Academy of Pediatrics (AAP) to discourage parents from exposing children under the age of 18 months to any kind of screen time (AAP, 2016). Here, we apply a propensity score matching approach to estimate relations between electronic screen‐based media use in infancy and executive function in early toddlerhood. In an international sample of 416 firstborn infants, parental report of regular exposure to screen‐based media at 4 months predicted poorer performance on a test of inhibition at 14 months, but was unrelated to either cognitive flexibility or working memory at 14 months. Results of this study are therefore consistent with the view that early exposure to screen‐based media adversely affects the development of executive function. 相似文献