首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   540篇
  免费   4篇
教育   398篇
科学研究   15篇
各国文化   7篇
体育   88篇
综合类   2篇
文化理论   4篇
信息传播   30篇
  2023年   2篇
  2022年   5篇
  2021年   6篇
  2020年   12篇
  2019年   22篇
  2018年   34篇
  2017年   22篇
  2016年   26篇
  2015年   10篇
  2014年   13篇
  2013年   115篇
  2012年   12篇
  2011年   15篇
  2010年   16篇
  2009年   11篇
  2008年   7篇
  2007年   11篇
  2006年   6篇
  2005年   6篇
  2004年   9篇
  2003年   11篇
  2002年   9篇
  2001年   6篇
  2000年   9篇
  1999年   6篇
  1998年   7篇
  1997年   10篇
  1996年   5篇
  1995年   2篇
  1994年   4篇
  1993年   8篇
  1992年   9篇
  1991年   10篇
  1990年   7篇
  1989年   4篇
  1988年   8篇
  1987年   4篇
  1986年   4篇
  1985年   4篇
  1984年   2篇
  1983年   4篇
  1982年   2篇
  1981年   5篇
  1979年   4篇
  1978年   9篇
  1977年   6篇
  1976年   2篇
  1975年   2篇
  1926年   2篇
  1906年   7篇
排序方式: 共有544条查询结果,搜索用时 31 毫秒
11.
12.
13.
This study explored the formation and expression of gender identity among 19 self-identified transgender individuals through the use of qualitative, in-depth interviews. Through the lens of the Communication Theory of Identity (CTI), we examined how trans* individuals form and perform gender identity, the tensions produced between identity frames, and the discursive strategies used to navigate those tensions. We identified the manifestation of three specific identity gaps: personal-enacted, personal-relational, and enacted-relational. Furthermore, we discovered four discursive strategies previously recognized for navigating tensions that emerge from identity gaps: closeted enactment, passing, disengagement, and label changing, and we identified a fifth discursive strategy—hyper-engagement—used to navigate these tensions. Results revealed that these identity layers and discursive strategies collaboratively manifest and coalesce in response to specific communicative contexts. Our results are discussed within the resounding call for greater understanding of trans* identity formation and expression.  相似文献   
14.
Lee AC  Ou Y  Fong D 《Child abuse & neglect》2003,27(11):1323-1329
OBJECTIVE: To describe a pattern of abusive head injury in a series of children older than 4 years of age. METHODS: A hospital chart review of abused children with skull fractures from 1999 to 2001 was carried out. The clinical features, social background, and subsequent outcome and management are described. RESULTS: An 11-year-old girl and a pair of brothers of ages 7 and 9 were identified. The girl was attacked with a hammer during sleep by her stepmother, who committed suicide shortly afterwards. After craniotomy and intensive care, the child survived her multiple depressed fractures, intracranial bleeding, and brain contusion. Two brothers from a second family were attacked from behind with a hammer by their biological father, who was subsequently found to have undiagnosed schizophrenia. A depressed occipital fracture, without intracranial injury, was found in each child. The elder brother also had metacarpal fractures. Both children recovered without surgical intervention. CONCLUSION: A pattern of abusive head injury was described in older children with depressed skull fractures from blunt injury. The abusing parents were seriously mentally disturbed, and the abusive acts closely resembled child homicide.  相似文献   
15.
OBJECTIVE: To show how the results of research on children's memory, communicative skills, social knowledge, and social tendencies can be translated into guidelines that improve the quality of forensic interviews of children. METHOD: We review studies designed to evaluate children's capacities as witnesses, explain the development of the structured NICHD Investigative Interview Protocol, and discuss studies designed to assess whether use of the Protocol enhances the quality of investigative interviews. RESULTS: Controlled studies have repeatedly shown that the quality of interviewing reliably and dramatically improves when interviewers employ the NICHD Protocol. No other technique has been proven to be similarly effective. CONCLUSIONS: Use of the structured NICHD Protocol improves the quality of information obtained from alleged victims by investigators, thereby increasing the likelihood that interventions will be appropriate.  相似文献   
16.
Old Enemies?     
本专栏由英国大使馆文化处供稿,旨在让读者从中学习地道英文,体悟英文百味。本期介绍了英国的四个组成部分——英格兰、苏格兰、威尔士和北爱尔兰之间的“恩怨”与“宿仇”。由于英格兰地域广,政治、经济实力强,不了解英国的人通常误把英格兰当英国。但是,在体育上,其他几个“兄弟”可是要扳回一城的……  相似文献   
17.
The present study examines high school students with a prior history of grade retention (N = 38) compared to a matched control group of nonretained students. The retained students were lower on a number of scholastic variables (i.e., achievement, intelligence, grades), more often absent from school, and lower on three subscales of a self-esteem measure (the Self-Perception Profile for Adolescents). The authors explored the correlates of grade retained with the measured variables and found that the later a student was retained was associated with lower grades, less-positive school attitudes, less time on homework, lower educational expectations, more discipline problems, lower self-control, and a more external locus of control.  相似文献   
18.
This investigation assessed the effect of dietary nitrate (NO3?) supplementation, in the form of beetroot juice (BR), on repeat-sprint performance in normoxia and normobaric hypoxia. 12 male team-sport athletes (age 22.3 ± 2.6 y, VO2peak 53.1 ± 8.7 mL.kg?1.min?1) completed three exercise trials involving a 10 min submaximal warm-up and 4 sets of cycling repeat-sprint efforts (RSE; 9 × 4 s) at sea level (CON), or at 3000 m simulated altitude following acute supplementation (140 mL) with BR (HYPBR; 13 mmol NO3?) or NO3depleted BR placebo (HYPPLA). Peak (PPO) and mean (MPO) power output, plus work decrement were recorded during the RSE task, while oxygen consumption (VO2) was measured during the warm-up. There were no significant differences observed between HYPBR and HYPPLA for PPO or MPO; however, work decrement was reduced in the first RSE set in HYPBR compared with HYPPLA. There was a moderate effect for VO2 to be lower following BR at the end of the 10 min warm-up (ES = 0.50 ± 0.51). Dietary NO3? may not improve repeat-sprint performance in hypoxia but may reduce VO2 during submaximal exercise. Therefore, BR supplementation may be more effective for performance improvement during predominantly aerobic exercise.  相似文献   
19.
The present study aimed to investigate pre-sleep behaviours (including evening electronic device use) and sleep quantity in well-trained athletes. Seventy well-trained athletes (44 females, 26 males) aged 21 ± 4 y from a range of team and individual sports were asked to complete an online sleep diary for 7 days. The sleep diary included questions about pre-sleep behaviours (e.g. napping, caffeine intake), electronic device use in the 2 h prior to bedtime (e.g. type of device and duration of use) and sleep (e.g. time in bed, sleep onset latency). On average, athletes spent 8:20 ± 1:21 h in bed each night. Associations between age, time in bed and sleepiness suggested that younger athletes spent more time in bed (= -0.05, p = 0.001) but felt sleepier (r = -0.32, p < 0.01) than older athletes. On average, athletes mostly used electronic devices for 0–30 min prior to sleep. The use of multiple devices in the evening was associated with more perceived difficulty in falling asleep (= 0.22, p = 0.03), but no associations existed with other sleep variables. In summary, younger athletes may require later start times or improved sleep quality to resolve excessive sleepiness.  相似文献   
20.
The effects of group dependent and group interdependent reinforcement contingencies on the level of socially appropriate behaviors emitted by emotionally handicapped elementary school students were examined. The investigation employed an ABAC design with a systematic replication (ACAB) across a second classroom. The findings suggested that: (a) Both group dependent and group interdependent reinforcement contingencies were effective in incieasing the level of socially appropriate behaviors. (b) For Classroom II, group interdependent reinforcement contingencies more often resulted in higher rates of responding for individual subjects than did group dependent reinforcement contingencies. (c) Group interdependent contingencies were shown to set the occasion for cooperative behavior among class members designed to help each other achieve individual but interdependent goals.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号