全文获取类型
收费全文 | 4783篇 |
免费 | 190篇 |
专业分类
管理学 | 705篇 |
民族学 | 33篇 |
人才学 | 1篇 |
人口学 | 442篇 |
丛书文集 | 38篇 |
理论方法论 | 503篇 |
综合类 | 41篇 |
社会学 | 2589篇 |
统计学 | 621篇 |
出版年
2023年 | 30篇 |
2022年 | 23篇 |
2021年 | 40篇 |
2020年 | 93篇 |
2019年 | 124篇 |
2018年 | 148篇 |
2017年 | 203篇 |
2016年 | 178篇 |
2015年 | 123篇 |
2014年 | 141篇 |
2013年 | 764篇 |
2012年 | 187篇 |
2011年 | 180篇 |
2010年 | 120篇 |
2009年 | 144篇 |
2008年 | 144篇 |
2007年 | 128篇 |
2006年 | 136篇 |
2005年 | 136篇 |
2004年 | 144篇 |
2003年 | 127篇 |
2002年 | 131篇 |
2001年 | 126篇 |
2000年 | 108篇 |
1999年 | 85篇 |
1998年 | 70篇 |
1997年 | 64篇 |
1996年 | 80篇 |
1995年 | 57篇 |
1994年 | 58篇 |
1993年 | 73篇 |
1992年 | 63篇 |
1991年 | 65篇 |
1990年 | 54篇 |
1989年 | 37篇 |
1988年 | 41篇 |
1987年 | 36篇 |
1986年 | 36篇 |
1985年 | 48篇 |
1984年 | 52篇 |
1983年 | 38篇 |
1982年 | 46篇 |
1981年 | 28篇 |
1980年 | 36篇 |
1979年 | 33篇 |
1978年 | 21篇 |
1977年 | 33篇 |
1976年 | 22篇 |
1975年 | 24篇 |
1974年 | 26篇 |
排序方式: 共有4973条查询结果,搜索用时 390 毫秒
221.
Insha Ullah Matthew D.M. Pawley Adam N.H. Smith Beatrix Jones 《Australian & New Zealand Journal of Statistics》2017,59(4):449-462
Multivariate control charts are used to monitor stochastic processes for changes and unusual observations. Hotelling's T2 statistic is calculated for each new observation and an out‐of‐control signal is issued if it goes beyond the control limits. However, this classical approach becomes unreliable as the number of variables p approaches the number of observations n, and impossible when p exceeds n. In this paper, we devise an improvement to the monitoring procedure in high‐dimensional settings. We regularise the covariance matrix to estimate the baseline parameter and incorporate a leave‐one‐out re‐sampling approach to estimate the empirical distribution of future observations. An extensive simulation study demonstrates that the new method outperforms the classical Hotelling T2 approach in power, and maintains appropriate false positive rates. We demonstrate the utility of the method using a set of quality control samples collected to monitor a gas chromatography–mass spectrometry apparatus over a period of 67 days. 相似文献
222.
223.
Elise Smith 《Accountability in research》2017,24(4):243-267
Misunderstanding and disputes about authorship are commonplace among members of multi/interdisciplinary health research teams. If left unmanaged and unresolved, these conflicts can undermine knowledge sharing and collaboration, obscure accountability for research, and contribute to the incorrect attribution of credit. To mitigate these issues, certain researchers suggest quantitative authorship distributions schemes (e.g., point systems), while others wish to replace or minimize the importance of authorship by using “contributorship”—a system based on authors’ self-reporting contributions. While both methods have advantages, we argue that authorship and contributorship will most likely continue to coexist for multiple ethical and practical reasons. In this article, we develop a five-step “best practice” that incorporates the distribution of both contributorship and authorship for multi/interdisciplinary research. This procedure involves continuous dialogue and the use of a detailed contributorship taxonomy ending with a declaration explaining contributorship, which is used to justify authorship order. Institutions can introduce this approach in responsible conduct of research training as it promotes greater fairness, trust, and collegiality among team members and ultimately reduces confusion and facilitates resolution of time-consuming disagreements. 相似文献
224.
225.
Heather A. Davis Elizabeth N. Riley Gregory T. Smith Richard Milich Jessica L. Burris 《Journal of American college health : J of ACH》2017,65(2):112-121
Objective: To help clarify the effect of gender on the bidirectional relationship between alcohol use and strenuous physical activity in college students. Participants: Five hundred twenty-four (52% female) college students recruited in August 2008 and 2009 and followed up in April 2009 and April 2011, respectively. Methods: Participants reported their alcohol use and strenuous physical activity on 2 occasions (baseline and follow-up) spaced approximately 1 or 2 years apart. Results: For females, alcohol use quantity at baseline was associated with increased strenuous physical activity at 1- and 2-year follow-ups, and alcohol use frequency at baseline was associated with decreased strenuous physical activity at 2-year follow-up. For males, alcohol use frequency at baseline predicted decreased strenuous physical activity at 1-year follow-up. Conclusions: Gender differences may be explained from an eating disorders perspective such that women use physical activity as a compensatory strategy to combat potential weight gain from calories consumed during alcohol use. 相似文献
226.
Molly R. Wolf Rebecca K. Eliseo-Arras Megan Brenner Thomas H. Nochajski 《Journal of Family Social Work》2017,20(1):26-40
ABSTRACTMilitary families face not only the same challenges as other families, but also unique issues due to their military involvement. Parenting programs for civilian families can be helpful, but they do not generally cover the specific issues faced by military families. The purpose of this qualitative study was to gather information from a focus group of eight service providers about the types of issues that affect military families, such that content and delivery of workshops at a social service agency could be formed to specifically cater to military families. This study utilized a phenomenological approach, and analyses revealed areas for social service involvement around the cycle of deployment. Specifically, social services could be helpful by using psychoeducational and normalization techniques around the five major themes that resulted from this study: (1) the issues of servicemembers psychologically withdrawing before deployment, (2) family cohesion and connectedness during and after deployment, (3) family stability during reintegration of the service member, (4) military families experience many of the same challenges that nonmilitary families do (such as domestic violence and financial issues), and (5) utilizing a military culture framework for all military family programs. 相似文献
227.
ABSTRACTService user involvement (SUI) in social work education has gained widespread attention in Europe and other continents. Nevertheless, experiences on including service users in social work education have not been reported from Germany or other German-speaking countries to date. This paper reports preliminary experiences with implementing SUI in a bachelor’s programme of social work in a German University of Applied Sciences. The main goals of the current paper are (1) to provide a background for implementing service user approaches in Germany by introducing the structure of social work education in Germany; (2) to report experiences from a weekend seminar where service users worked together with students of social work in the framework of a curriculum of a German University of Applied Sciences and (3) to formulate some implications of these experiences for SUI across Europe. The main results were that introducing service user involvement into a German curriculum of social work is possible but needs careful reflection and planning. Experiences gathered in the weekend seminar with service users were encouraging for service users, students and teachers. We conclude that systematically implementing SUI into German curricula of social work is important. 相似文献
228.
Jim Orford Jenny Cousins Neil Smith Henrietta Bowden-Jones 《International Gambling Studies》2017,17(2):259-275
Aims were: to compare burden experienced by affected family members (AFMs) attending a problem gambling treatment clinic in London, England with that of AFMs affected by substance problems; to examine socio-demographic correlates of AFM burden; to evaluate change following an intervention designed for AFMs; and to test the assumption of the stress-strain-coping-support (SSCS) model that change in AFM coping is important. AFMs (N = 215) completed a gambling version of the short questionnaire for family members affected by addiction (SQFM-AA) which assesses stressful impact, symptoms of ill health, ways of coping, social support and overall burden. All received a 5-Step Method workbook, based on the SSCS model. The SQFM-AA was repeated three to six months later (n = 96). T-test analyses showed that baseline burden and related variables were comparable to those of family members affected by substance problems, were greater for wives and those living in the same household as the gambling relative, and were significantly reduced at follow-up. Regression modelling indicated the importance, for AFMs’ health, of reduced levels of engaged-emotional coping. Family members affected by gambling, some subgroups especially, experience high levels of burden. They can benefit from a model-based intervention, and coping change may be an important process. 相似文献
229.
Lindsey J. Thomas Jennifer A. Jackl Jenny L. Crowley 《Journal of Family Communication》2017,17(3):238-253
Framed by Relational Dialectics Theory, this study explores the ways adult, former foster children discursively construct meanings of “family.” Contrapuntal analysis of 24 interviews revealed two discourses as competing to constitute family: the Discourse of Family as Irreplaceable and Inescapable (Permanence) and the Discourse of Family as Performative Kinning (Performance). Permanence was constituted by themes of biology and historical connection, reifying normative understandings. Performance, comprised of role enactment, need for tolerance, and unconditional love, challenged the Permanence discourse. Throughout the narratives, Performance competed with Permanence for dominance, illustrating the cultural pervasiveness and power of Permanence yet, in some moments, privileging the marginalized Performance discourse. This discursive competition constructed meanings of family in narratives of life before, during, and after foster care. Overall, participant’s talk constructed complex webs of family relationships, allowing access to an important social institution—family—regardless of the presence/absence of culturally valued markers of family (e.g., biology, legality). 相似文献
230.
Deborah J. Monahan Katie Kietzmann Carrie Jefferson Smith Vernon L. Greene 《Journal of intergenerational relationships》2017,15(4):315-325
Kinship caregivers are a child-care resource for families experiencing stress or temporary parenting due to illness, incarceration, or death of a parent. This article examines whether and how felt caregiver burden influences the reported propensity of caregivers to want to adopt the children in their care. Kinship caregivers who were enrolled in KinNET completed the survey (N = 102) and the data were entered anonymously into SPSS for analysis. Their mean age was 57.51 years (SD = 10.13), 95% were female (SD = .19), and two-thirds were non-white (SD = .73). Using “likelihood of adopting the child in my care,” as the outcome variable in the linear regression analysis, caregiver’s age, monthly income, and total hours employed were significant predictors. Total pressures, family service needs, and physical problems scales were not statistically significant predictors. The adjusted R square was .439 and significant (.006). Understanding the factors that are predictive of adopting children in kinship care will help programs target services more effectively. Helping kinship caregivers and the children in their care is also important in promoting their health and social well-being. 相似文献