全文获取类型
收费全文 | 2034篇 |
免费 | 44篇 |
专业分类
管理学 | 296篇 |
民族学 | 14篇 |
人才学 | 1篇 |
人口学 | 190篇 |
丛书文集 | 4篇 |
理论方法论 | 246篇 |
综合类 | 20篇 |
社会学 | 1029篇 |
统计学 | 278篇 |
出版年
2023年 | 19篇 |
2022年 | 8篇 |
2021年 | 22篇 |
2020年 | 36篇 |
2019年 | 58篇 |
2018年 | 48篇 |
2017年 | 74篇 |
2016年 | 84篇 |
2015年 | 53篇 |
2014年 | 52篇 |
2013年 | 269篇 |
2012年 | 97篇 |
2011年 | 85篇 |
2010年 | 63篇 |
2009年 | 66篇 |
2008年 | 63篇 |
2007年 | 92篇 |
2006年 | 77篇 |
2005年 | 68篇 |
2004年 | 71篇 |
2003年 | 62篇 |
2002年 | 53篇 |
2001年 | 54篇 |
2000年 | 43篇 |
1999年 | 49篇 |
1998年 | 30篇 |
1997年 | 19篇 |
1996年 | 29篇 |
1995年 | 20篇 |
1994年 | 26篇 |
1993年 | 14篇 |
1992年 | 26篇 |
1991年 | 20篇 |
1990年 | 18篇 |
1989年 | 18篇 |
1988年 | 16篇 |
1987年 | 11篇 |
1986年 | 19篇 |
1985年 | 13篇 |
1984年 | 11篇 |
1983年 | 15篇 |
1982年 | 15篇 |
1981年 | 8篇 |
1980年 | 12篇 |
1979年 | 19篇 |
1978年 | 11篇 |
1976年 | 5篇 |
1975年 | 4篇 |
1974年 | 7篇 |
1964年 | 3篇 |
排序方式: 共有2078条查询结果,搜索用时 15 毫秒
81.
Previous research outlines the correlates of childcare expulsion in the USA, yet researchers know little about how these correlates produce expulsion. This in‐depth qualitative analysis of 30 childcare providers’ accounts of expulsion finds a patterned process to expulsion: Teachers search for causes and solutions to challenging behaviours. When interventions fail, overwhelmed teachers shift their focus from ‘struggling’ children to ‘bad families’. Once the explanation of behaviour changes from within to outside of the child, expulsion is imminent. Interventions in teachers’ understandings, not only in children's behaviours, are discussed as a possible way to reduce expulsion. 相似文献
82.
John Stillwell Martin Bell Marcus Blake Oliver Duke-Williams Phil Rees 《Journal of Population Research》2001,18(1):19-39
This paper explores the impact of net migration in Australia and the United Kingdom using measures of migration effectiveness
computed from period-age migration data for four consecutive five-year periods. Results reported in Part 1 of this paper (Stillwellet al. 2000) suggest that while the overall effectiveness of net migration at the scale of city regions has declined over the twenty-year
period in both countries, important geographical variations are evident. Part 2 considers how patterns of migration effectiveness
vary by age and presents a single classification of all the city regions on the basis of age-specific effectiveness. More
detailed analysis includes spatial patterns for particular age groups and net migration profiles of selected regions. Cohort
effects are shown to be important for explaining changes between time periods in these regions. 相似文献
83.
84.
85.
86.
Martin Livingston 《Clinical Social Work Journal》2009,37(3):183-189
Although all psychoanalytically informed approaches to couples therapy recognize the importance of underlying dynamics, there
are important differences in the focus of the treatment. This paper suggests a focus that is based on a self-psychological/intersubjective
viewpoint. Two concepts that exemplify this model, a sustained empathic focus and an appreciation of the experience of vulnerability,
are discussed and applied to a couples session. What is emphasized in this material is a process of focusing on underlying
vulnerability, affect and subjective experience.
相似文献
Martin LivingstonEmail: |
87.
We describe a natural field experiment investigating donation behaviour. The setting was an art gallery where donations could be deposited into a transparent box in the foyer. Two aspects of the donation environment were manipulated: signs on the donation box and the initial contents of the box. We used three sign treatments: a control with no sign, a sign that thanked donors, and a sign that indicated donations would be matched. We used two initial contents treatments: one with relatively little money ($50) and one with four times as much. The average donation per donor was significantly larger in the $200 treatments but this was offset by a decrease in the propensity to donate. In the matching treatments donations were significantly larger both at the per donor and per visitor level. A control variable turned out to have the largest influence on donation behaviour: the day of the week. The average donation per visitor was 51% higher on Sundays, when compared to every other day of the week. 相似文献
88.
89.
Pétremand Gaël Chittaro Yannick Braaker Sonja Brenneisen Stephan Gerner Magdalena Obrist Martin K. Rochefort Sophie Szallies Alexander Moretti Marco 《Urban Ecosystems》2018,21(1):119-132
Urban Ecosystems - Green roofs have recently gained recognition for their potential contribution to urban ecosystems by providing, among other services, habitat for plants and animals, and stepping... 相似文献
90.
The time‐dependent “cure‐death” model investigating two equally important endpoints simultaneously in trials treating high‐risk patients with resistant pathogens 下载免费PDF全文
A variety of primary endpoints are used in clinical trials treating patients with severe infectious diseases, and existing guidelines do not provide a consistent recommendation. We propose to study simultaneously two primary endpoints, cure and death, in a comprehensive multistate cure‐death model as starting point for a treatment comparison. This technique enables us to study the temporal dynamic of the patient‐relevant probability to be cured and alive. We describe and compare traditional and innovative methods suitable for a treatment comparison based on this model. Traditional analyses using risk differences focus on one prespecified timepoint only. A restricted logrank‐based test of treatment effect is sensitive to ordered categories of responses and integrates information on duration of response. The pseudo‐value regression provides a direct regression model for examination of treatment effect via difference in transition probabilities. Applied to a topical real data example and simulation scenarios, we demonstrate advantages and limitations and provide an insight into how these methods can handle different kinds of treatment imbalances. The cure‐death model provides a suitable framework to gain a better understanding of how a new treatment influences the time‐dynamic cure and death process. This might help the future planning of randomised clinical trials, sample size calculations, and data analyses. 相似文献