全文获取类型
收费全文 | 689篇 |
免费 | 37篇 |
出版年
2023年 | 6篇 |
2022年 | 6篇 |
2021年 | 12篇 |
2020年 | 19篇 |
2019年 | 21篇 |
2018年 | 23篇 |
2017年 | 28篇 |
2016年 | 44篇 |
2015年 | 24篇 |
2014年 | 19篇 |
2013年 | 89篇 |
2012年 | 29篇 |
2011年 | 38篇 |
2010年 | 13篇 |
2009年 | 16篇 |
2008年 | 18篇 |
2007年 | 20篇 |
2006年 | 15篇 |
2005年 | 11篇 |
2004年 | 11篇 |
2003年 | 16篇 |
2002年 | 15篇 |
2001年 | 15篇 |
2000年 | 16篇 |
1999年 | 9篇 |
1998年 | 22篇 |
1997年 | 7篇 |
1996年 | 7篇 |
1995年 | 5篇 |
1992年 | 4篇 |
1991年 | 8篇 |
1990年 | 8篇 |
1989年 | 8篇 |
1988年 | 9篇 |
1987年 | 7篇 |
1986年 | 4篇 |
1985年 | 10篇 |
1984年 | 7篇 |
1983年 | 6篇 |
1982年 | 4篇 |
1981年 | 4篇 |
1979年 | 7篇 |
1978年 | 4篇 |
1974年 | 5篇 |
1973年 | 7篇 |
1971年 | 5篇 |
1969年 | 8篇 |
1968年 | 7篇 |
1967年 | 4篇 |
1965年 | 4篇 |
排序方式: 共有726条查询结果,搜索用时 15 毫秒
721.
ABSTRACT Young children have difficulty learning from two-dimensional (2D) sources (e.g., television). One reason for this may be that 2D media lacks the contingent feedback present in social interactions. Touchscreens can provide contingent, reciprocal responses in the absence of a social partner, and thus may have the potential to overcome the challenges of learning by viewing. We assessed 30- to 48-month-old children’s memory for eBook content and traced objects after interactive or observational touchscreen exposure. The degree of interactivity with the touchscreen varied by three conditions of (1) close-mapping in which the touchscreen input corresponded closely with the output, (2) far-mapping, and (3) watching a screen recording. Children who watched the screen recording did best on delayed object recognition for traced objects, whereas results for the eBook material revealed a condition by gender by age (months) interaction. Girls’ memory for eBook material improved with increasing age after interacting via near- or far-mapping. Results are discussed in terms of gender and age differences in executive functioning and the capacity of cognitive load, and the limitations of contingent interactions. 相似文献
722.
723.
724.
Rachel E. Lovell Cyleste C. Collins Margaret J. McGuire Laura T. Overman Misty N. Luminais Daniel J. Flannery 《Journal of aggression, maltreatment & trauma》2019,28(1):8-24
ABSTRACTIn 2013, Cuyahoga County, Ohio, began DNA testing and investigating nearly 5000 previously unsubmitted sexual assault kits (SAKs) from 1993 through 2009. We examined case files from a sample of SAKs that were tested but not previously adjudicated (n = 429). More than 10% (n = 45) involved victims who reported to police that a former or current intimate partner sexually assaulted them. This article integrates the available data on the offenders, the victims, the initial investigation, and the specifics of the assaults to provide a more complete understanding of intimate partner sexual assault (IPSA). More than one-third of the IPSA offenders were serial sex offenders; that is, the offenders sexually assaulted an intimate partner and another person(s). Comparing IPSAs to all other sexual assaults, IPSAs more frequently involved bodily force, less frequently involved a weapon, and IPSA investigations were more frequently closed because (1) the victims stated they lied or the police doubted the victims and (2) the victims declined to prosecute. The most common sequencing of events was a demand for sex by the offender followed by a verbal refusal by the victim and the use of bodily force in the sexual assault. The findings, however, indicate a great deal of variation in the sequencing of events surrounding the sexual assault, with over 25% involving no physical confrontation before or after the sexual assault and no demands for sex. Unsubmitted SAK data provide a unique window into understanding the understudied and underreported issue of IPSA. 相似文献
725.
726.