全文获取类型
收费全文 | 15413篇 |
免费 | 217篇 |
国内免费 | 119篇 |
专业分类
教育 | 10576篇 |
科学研究 | 2044篇 |
各国文化 | 109篇 |
体育 | 1350篇 |
综合类 | 11篇 |
文化理论 | 120篇 |
信息传播 | 1539篇 |
出版年
2020年 | 209篇 |
2019年 | 307篇 |
2018年 | 424篇 |
2017年 | 370篇 |
2016年 | 383篇 |
2015年 | 242篇 |
2014年 | 315篇 |
2013年 | 2618篇 |
2012年 | 297篇 |
2011年 | 337篇 |
2010年 | 242篇 |
2009年 | 240篇 |
2008年 | 252篇 |
2007年 | 287篇 |
2006年 | 274篇 |
2005年 | 270篇 |
2004年 | 254篇 |
2003年 | 247篇 |
2002年 | 238篇 |
2001年 | 255篇 |
2000年 | 271篇 |
1999年 | 274篇 |
1998年 | 142篇 |
1997年 | 149篇 |
1996年 | 183篇 |
1995年 | 169篇 |
1994年 | 131篇 |
1993年 | 142篇 |
1992年 | 216篇 |
1991年 | 222篇 |
1990年 | 230篇 |
1989年 | 258篇 |
1988年 | 209篇 |
1987年 | 225篇 |
1986年 | 219篇 |
1985年 | 250篇 |
1984年 | 222篇 |
1983年 | 211篇 |
1982年 | 176篇 |
1981年 | 168篇 |
1980年 | 157篇 |
1979年 | 244篇 |
1978年 | 190篇 |
1977年 | 180篇 |
1976年 | 148篇 |
1975年 | 132篇 |
1974年 | 151篇 |
1973年 | 132篇 |
1972年 | 107篇 |
1971年 | 119篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
891.
Zoe Rutherford Brendan Gough Sarah Seymour-Smith Christopher R Matthews John Wilcox Dan Parnell 《Soccer & Society》2014,15(6):951-969
The purpose of this study was to examine whether an innovative, inclusive and integrated 12-week exercise, behaviour change and nutrition advice-based weight management programme could significantly improve the cardiovascular risk factors of overweight and obese men and women over the age of 35. One hundred and ninety-four men and 98 women (mean age?=?52.28?±?9.74 and 51.19?±?9.04) attending a community-based intervention delivered by Notts County Football in the Community over one year, took part in the study. Height (m), weight (kg), fitness (meters covered during a 6?min walk) and waist circumference (cm) were measured at weeks 1 and 12 as part of the intervention. Changes in body weight, waist circumference and fitness for men and women were measured by a 2-way repeated measures ANOVA, with significance set to p?<?0.05.Weight, waist circumference and fitness significantly improved over time in both men (4.96?kg, 6.29?cm, 70.22?m; p?<?0.05) and women (4.26?kg, 5.90?cm, 35.29?m; p?<?0.05). The results demonstrated that the FITC lead weight loss intervention was successful in significantly improving cardiovascular risk factors in both men and women. In particular, the weight loss reductions achieved were comparable to those seen in similar, more costly men-only programmes. This is the first study to demonstrate the efficacy of such an intervention in an inclusive, mixed gender programme and more specifically, in women. 相似文献
892.
893.
OBJECTIVE: The goals of this current project were to expand and elaborate on the results of Varia, Abidin, and Dass' (1996) study to better understand what historical parenting factors may contribute in creating a "Minimizing" perception of childhood psychological abuse. A second objective included examining the association between perceptual styles and adult ratings of adult relationship satisfaction. METHOD: Ninety individuals from a non-clinical adult sample completed self-report questionnaires regarding psychological maltreatment and adult relationship satisfaction. Three groups were created and compared using analysis of variance. The groups were (I) "Non-Abused," consistent reporters of no abuse; (II) "Acknowledgers," consistent reporters of abuse; and (III) "Minimizers," reporters of abuse, but do not label themselves as having been abused. RESULTS: Results indicated a continuum effect with the Non-Abused individuals reporting the highest level of maternal warmth and affection, the Acknowledgers reporting the lowest, with the Minimizers in the middle. The Non-Abused group reported the healthiest adjustment in terms of adult relationship satisfaction. While Minimizers and Acknowledgers reported similar levels of psychologically abusive experiences, Acknowledgers reported more difficulties with adult relationships. CONCLUSIONS: This study highlights the importance of studying Minimizers, a group which describes abusive events but minimizes the meaning and scope of these experiences. The relatively higher levels of maternal care which the Minimizers reported is hypothesized to be associated with their perceptions that they were not abused and acted as a protective factor associated with better quality adult relationships. The varying degrees of nurturance and care in the early family environment of abused individuals is speculated to be associated with distinct perceptual styles. 相似文献
894.
895.
896.
897.
898.
R Weitzel 《Bulletin of the Medical Library Association》1976,64(1):32-35
Supplying MEDLINE services to a widely dispersed user population in the developing countries creates numerous problems not encountered by other MEDLINE centres. The inability to interact with the user complicates system promotion and makes search formulation sometimes a gamble. Nevertheless, an evaluation survey has shown high user satisfaction. Of great concern is the still inadequate solution of document delivery. Near-term objectives are the broadening of geographic coverage and the integration of search processing with supporting hard copy supply. 相似文献
899.
Sans résumé 相似文献
900.