全文获取类型
收费全文 | 269篇 |
免费 | 16篇 |
专业分类
管理学 | 15篇 |
民族学 | 3篇 |
人口学 | 22篇 |
丛书文集 | 1篇 |
理论方法论 | 39篇 |
综合类 | 2篇 |
社会学 | 181篇 |
统计学 | 22篇 |
出版年
2023年 | 4篇 |
2021年 | 6篇 |
2020年 | 22篇 |
2019年 | 18篇 |
2018年 | 20篇 |
2017年 | 21篇 |
2016年 | 19篇 |
2015年 | 18篇 |
2014年 | 16篇 |
2013年 | 61篇 |
2012年 | 12篇 |
2011年 | 12篇 |
2010年 | 11篇 |
2009年 | 4篇 |
2008年 | 7篇 |
2007年 | 5篇 |
2006年 | 3篇 |
2005年 | 4篇 |
2004年 | 2篇 |
2003年 | 2篇 |
2002年 | 1篇 |
1998年 | 4篇 |
1997年 | 1篇 |
1996年 | 2篇 |
1994年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1985年 | 2篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1971年 | 1篇 |
1970年 | 1篇 |
排序方式: 共有285条查询结果,搜索用时 0 毫秒
101.
Shelley L. Craig Lauren McInroy Ashley Austin Mark Smith Brett Engle 《Journal of social service research》2013,39(5):688-698
ABSTRACT Sexual minority youth face multiple challenges, yet research regarding evidence-informed practice strategies for this population is limited. This study describes the pilot efforts of Strengths First, the first strengths-based intervention created specifically to promote self-esteem and self-efficacy among multiethnic sexual minority youth. A pretest–posttest design was used to gather preliminary data from program participants (n = 162) about the potential effectiveness of the program during a 2-year period that ranged from the inception of the program in June 2008 to September 2010. Significant increases in self-esteem and self-efficacy were found. Implications for social service research and practice are discussed. 相似文献
102.
A spectral decomposition method is described for obtaining an upper bound on the amount of measurement error in a time series. The method is applied to generated data and to M1b, real GNP, and the CPI. The bounds provide insight into both the amount of measurement error in these series and the stochastic specification of the errors. 相似文献
103.
Richard Ashley 《商业与经济统计学杂志》2013,31(2):129-131
Ashley (1983) gave a simple condition for determining when a forecast of an explanatory variable (Xt ) is sufficiently inaccurate that direct replacement of Xt by the forecast yields worse forecasts of the dependent variable than does respecification of the equation to omit Xt . Many available macroeconomic forecasts were shown to be of limited usefulness in direct replacement. Direct replacement, however, is not optimal if the forecast's distribution is known. Here optimal linear forms in commercial forecasts of several macroeconomic variables are obtained by using estimates of their distributions. Although they are an improvement on the raw forecasts (direct replacement), these optimal forms are still too inaccurate to be useful in replacing the actual explanatory variables in forecasting models. The results strongly indicate that optimal forms involving several commercial forecasts will not be very useful either. Thus Ashley's (1983) sufficient condition retains its value in gauging the usefulness of a forecast of an explanatory variable in a forecasting model, even though it focuses on direct replacement. 相似文献
104.
Ashley J. Bonner 《统计学通讯:模拟与计算》2017,46(5):3794-3811
High-dimensional datasets have exploded into many fields of research, challenging our interpretation of the classic dimension reduction technique, Principal Component Analysis (PCA). Recently proposed Sparse PCA methods offer useful insight into understanding complex data structures. This article compares three Sparse PCA methods through extensive simulations, with the aim of providing guidelines as to which method to choose under a variety of data structures, as dictated by the variance-covariance matrix. A real gene expression dataset is used to illustrate an application of Sparse PCA in practice and show how to link simulation results with real-world problems. 相似文献
105.
106.
Ashley Warner 《Clinical Social Work Journal》2013,41(1):68-76
This paper explores the contributions of Heinz Kohut and self psychology to the conceptualization of art and healing on an individual and cultural level. The roles of normative narcissistic development, selfobject experience, and empathy are emphasized in the formation and maintenance of creative expression. Crayton Rowe’s addition of the undifferentiated selfobject is also explored. The lives and work of legendary artists, as well as a case example from the ongoing clinical treatment of a creative professional, provide illustration. 相似文献
107.
Ashley Hemrich Laura Pawlow Andrew Pomerantz Dan Segrist 《Journal of American college health : J of ACH》2013,61(8):588-591
Abstract. Objective: To explore tanning behaviors and whether a discrepancy between current and ideal skin tones exists. Participants: The sample included 78 Caucasian women from a mid-sized midwestern university. Methods: Data were collected in spring 2012 via a paper questionnaire. Results: Sixty-two percent of the sample regularly engaged in salon tanning at least once per week, with an average frequency of 2.5 visits per week. Thirteen percent endorsed regularly tanning 4 or more times per week, and 26% reported visiting a tanning bed more than once in a 24-hour period. Ninety-four percent wished their current skin tone was darker, and ideal tone was significantly darker than current tone. Conclusions: The data suggest that the young Caucasian women in this sample tend to be dissatisfied with their current skin tone to an extent that leads the majority of them to engage in risky, potentially cancer-causing behavior by either salon tanning or considering tanning in the future as time and finances become available. 相似文献
108.
Developing the competence, commitment and capacity for change of people is a vital element in the creation and maintenance of competitive advantage and should be an integral part of the strategic equations and business plans of any firm. This theme, examples of ‘good’ practice, and strategies to implement a strategic approach to people have been explained and developed in a brief case ‘action pack’ produce by the authors of this article for the MSC and NEDO. Key factors identified in the development of the three ‘C’s are effective leadership, involvement and good employee communications, stress on performance management, appropriate reward systems and training and development. 相似文献
109.
Karina Kozak Ashley Greaves Jane Waldfogel Jyoti Angal Amy J. Elliott William P. Fifier Natalie Hiromi Brito 《Infancy》2021,26(4):536-550
The United States is the only high-income country that does not have a national policy mandating paid leave to working women who give birth. Increased rates of maternal employment post-birth call for greater understanding of the effects of family leave on infant development. This study examined the links between paid leave and toddler language, cognitive, and socioemotional outcomes (24–36 months; N = 328). Results indicate that paid leave was associated with better language outcomes, regardless of socioeconomic status. Additionally, paid leave was correlated with fewer infant behavior problems for mothers with lower levels of educational attainment. Expanding access to policies that support families in need, like paid family leave, may aid in reducing socioeconomic disparities in infant development. 相似文献
110.
E. Jeffrey Hill L. Ashley Bryce Christoffer L. Loderup Jessica L. Brown-Hamlett Ashley B. LeBaron David B. Allsop 《Community, Work & Family》2019,22(4):527-544
ABSTRACTIn this study we quantitatively and qualitatively explore two research questions: (1) ‘What qualifies a scholar to be classified as an extraordinary contributor to work and family research?’ and, (2) ‘Who are extraordinary contributors to work and family research?’ We first selected a group of top work and family scholars based on total citation counts and a multi-level nomination process. We then qualitatively explored our research questions via e-mail correspondence and telefocus groups. From these data, we distilled eight core themes, or ‘modalities of excellence,’ to categorize extraordinary contributors: (1) publishing (traditional academic metrics), (2) publishing (reputation among scholars), (3) disseminating work and family research (translational research), (4) funding work and family research, (5) service to the work and family field, (6) mentoring future work and family scholars, (7) landmark work and family contributions, and (8) overall reputation. Using quantitative measures (citation counts) and qualitative exploration (e-mail correspondence, telefocus groups, and surveys of work and family scholars), we identified extraordinary contributors in each modality. 相似文献