全文获取类型
收费全文 | 11267篇 |
免费 | 307篇 |
国内免费 | 2篇 |
专业分类
管理学 | 1547篇 |
民族学 | 69篇 |
人才学 | 3篇 |
人口学 | 1014篇 |
丛书文集 | 71篇 |
理论方法论 | 1167篇 |
综合类 | 230篇 |
社会学 | 5814篇 |
统计学 | 1661篇 |
出版年
2020年 | 168篇 |
2019年 | 276篇 |
2018年 | 278篇 |
2017年 | 401篇 |
2016年 | 277篇 |
2015年 | 213篇 |
2014年 | 272篇 |
2013年 | 1857篇 |
2012年 | 376篇 |
2011年 | 367篇 |
2010年 | 284篇 |
2009年 | 277篇 |
2008年 | 271篇 |
2007年 | 305篇 |
2006年 | 277篇 |
2005年 | 291篇 |
2004年 | 264篇 |
2003年 | 197篇 |
2002年 | 234篇 |
2001年 | 281篇 |
2000年 | 242篇 |
1999年 | 219篇 |
1998年 | 173篇 |
1997年 | 165篇 |
1996年 | 159篇 |
1995年 | 151篇 |
1994年 | 152篇 |
1993年 | 155篇 |
1992年 | 156篇 |
1991年 | 152篇 |
1990年 | 155篇 |
1989年 | 152篇 |
1988年 | 136篇 |
1987年 | 155篇 |
1986年 | 116篇 |
1985年 | 149篇 |
1984年 | 164篇 |
1983年 | 146篇 |
1982年 | 126篇 |
1981年 | 94篇 |
1980年 | 113篇 |
1979年 | 117篇 |
1978年 | 104篇 |
1977年 | 87篇 |
1976年 | 89篇 |
1975年 | 99篇 |
1974年 | 97篇 |
1973年 | 71篇 |
1972年 | 62篇 |
1967年 | 53篇 |
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
991.
Mindy E. Scott Alan Booth Valarie King David R. Johnson 《Journal of marriage and the family》2007,69(5):1194-1209
Research indicates that closeness of the father‐child bond following parental divorce is associated with better outcomes for children and adolescents. Unlike other investigations, this study takes a long‐term developmental approach to understanding stability and change in postdivorce father‐adolescent relationship closeness. Drawing on Add Health data (n = 483), we examine factors that explain (a) why some high‐quality father‐adolescent relationships remain the same after divorce whereas others decline, and (b) why some low‐quality relationships are stable following divorce whereas others improve. High mother‐offspring relationship quality and offspring feelings of well‐being prevented close father‐offspring relationships from deteriorating. Offspring’s childbearing and cohabitation following parental divorce increase closeness in father‐offspring relationships that were not close prior to divorce. Although a majority of offspring experienced a decline in closeness following divorce, results from this study show that some very close father‐offspring relationships are maintained and some poor relationships become closer. 相似文献
992.
Tony N. Brown Emily E. Tanner‐Smith Chase L. Lesane‐Brown Michael E. Ezell 《Journal of marriage and the family》2007,69(1):14-25
This study examines child, parent, and situational correlates of familial ethnic/race socialization using nationally representative data gathered as part of the Early Childhood Longitudinal Study, Kindergarten Class of 1998 – 1999 (ECLS‐K). The ECLS‐K sample (N = 18,950) includes White, Black, Hispanic, Asian, Native Hawaiian/Pacific Islander, American Indian, and multiracial kindergarteners, with survey data available at the child, parent/guardian, teacher, and school level. We find that child correlates such as race and gender, parent correlates such as education and warmth of parent‐child relationship, and situational correlates such as percent of minorities at the child’s school and cultural event participation influence how often family members discuss children’s ethnic/racial heritage with them. We advocate for continued research of contextualized family dynamics. 相似文献
993.
Nora Broege Ann Owens † Anthony P. Graesch ‡ Jeanne E. Arnold ‡ Barbara Schneider 《Sociological methodology》2007,37(1):119-149
Two studies of working families are combined to demonstrate a strategy for producing reliable estimates from the combination of self-reported (large N) and observational (small N) data. Both studies examine where and how dual-career families spend time at home. The 500 Family Study is sociological and uses self-reported time diary data from a national sample; the CELF study is anthropological and uses observational scan sampling data from a regional sample of 32 families. The data are combined as if they constitute one sample, and an analytic solution for establishing the reliability of the resulting composite estimates of time use is provided. Merging the data sets provides validation for each study, neither of which is without potential methodological weaknesses. The advantages of combining data from the independent data collection methods are discussed, and selected substantive findings on families' activities are highlighted, illustrating similarities and differences between findings in the independent and combined data sets. Results show that working families spend significant time in a small spectrum of home spaces, particularly kitchens and living rooms, with leisure activities prevailing, but mothers, fathers, and children differ in where and how they spend their time. Overall, a template for merging data from different disciplines and methods is provided. 相似文献
994.
In the presence of Pareto, non-dictatorship, full domain, and transitivity, an extremely weak independence condition disallows
both anonymity and neutrality. 相似文献
995.
996.
997.
A number of case reviews and observations have reported on the effects, on counsellors, of working with victims of violence. In this study two groups of counsellors, sexual assault counsellors (n = 41) and counsellors from a range of other therapy areas (n = 32), were compared on a number of measures including the Maslach Burnout Inventory, Ways of Coping Scale and a Beliefs and Values Questionnaire. The results indicate that sexual assault counsellors experience greater emotional exhaustion and use more escape/avoidance coping strategies. Responses concerning beliefs and values are discussed in terms of McCann and Pearlman's constructivist self-development model and indicate support for the concept of vicarious traumatization. Implications of these findings for Sexual Assault Services are discussed. 相似文献
998.
Assessments of aggregate exposure to pesticides and other surface contamination in residential environments are often driven by assumptions about dermal contacts. Accurately predicting cumulative doses from realistic skin contact scenarios requires characterization of exposure scenarios, skin surface loading and unloading rates, and contaminant movement through the epidermis. In this article we (1) develop and test a finite-difference model of contaminant transport through the epidermis; (2) develop archetypal exposure scenarios based on behavioral data to estimate characteristic loading and unloading rates; and (3) quantify 24-hour accumulation below the epidermis by applying a Monte Carlo simulation of these archetypal exposure scenarios. The numerical model, called Transient Transport through the epiDERMis (TTDERM), allows us to account for variable exposure times and time between exposures, temporal and spatial variations in skin and compound properties, and uncertainty in model parameters. Using TTDERM we investigate the use of a macro-activity parameter (cumulative contact time) for predicting daily (24-hour) integrated uptake of pesticides during complex exposure scenarios. For characteristic child behaviors and hand loading and unloading rates, we find that a power law represents the relationship between cumulative contact time and cumulative mass transport through the skin. With almost no loss of reliability, this simple relationship can be used in place of the more complex micro-activity simulations that require activity data on one- to five-minute intervals. The methods developed in this study can be used to guide dermal exposure model refinements and exposure measurement study design. 相似文献
999.
1000.