全文获取类型
收费全文 | 2275篇 |
免费 | 26篇 |
国内免费 | 2篇 |
专业分类
教育 | 1747篇 |
科学研究 | 128篇 |
各国文化 | 36篇 |
体育 | 137篇 |
综合类 | 1篇 |
文化理论 | 24篇 |
信息传播 | 230篇 |
出版年
2021年 | 15篇 |
2020年 | 25篇 |
2019年 | 60篇 |
2018年 | 88篇 |
2017年 | 91篇 |
2016年 | 92篇 |
2015年 | 49篇 |
2014年 | 59篇 |
2013年 | 458篇 |
2012年 | 52篇 |
2011年 | 62篇 |
2010年 | 38篇 |
2009年 | 48篇 |
2008年 | 56篇 |
2007年 | 38篇 |
2006年 | 38篇 |
2005年 | 41篇 |
2004年 | 41篇 |
2003年 | 30篇 |
2002年 | 32篇 |
2001年 | 33篇 |
2000年 | 38篇 |
1999年 | 31篇 |
1998年 | 23篇 |
1997年 | 31篇 |
1996年 | 32篇 |
1995年 | 19篇 |
1994年 | 15篇 |
1993年 | 26篇 |
1992年 | 38篇 |
1991年 | 29篇 |
1990年 | 30篇 |
1989年 | 36篇 |
1988年 | 25篇 |
1987年 | 39篇 |
1986年 | 18篇 |
1985年 | 16篇 |
1984年 | 19篇 |
1983年 | 28篇 |
1982年 | 21篇 |
1981年 | 15篇 |
1980年 | 20篇 |
1979年 | 24篇 |
1978年 | 20篇 |
1977年 | 24篇 |
1976年 | 17篇 |
1974年 | 16篇 |
1973年 | 16篇 |
1971年 | 16篇 |
1969年 | 13篇 |
排序方式: 共有2303条查询结果,搜索用时 15 毫秒
111.
112.
113.
114.
115.
116.
D D Brown W G Mucci R K Hetzler R G Knowlton 《Research quarterly for exercise and sport》1989,60(3):246-250
T'ai Chi Chuan (TCC) is a widely practiced Chinese martial art said to physically develop balance and coordination as well as enhance emotional and mental health. TCC consists of a series of postures combined into a sequential movement providing a smooth, continuous, low-intensity activity. The purpose of this study was to examine the ventilatory and cardiovascular responses to the Long Form of Yang's style TCC. In addition, the subjects' TCC responses were compared to their ventilatory and cardiovascular responses during cycle ergometry at an oxygen consumption (VO2) equivalent to the mean TCC VO2. Six experienced (M = 8.3 yrs) male TCC practitioners served as subjects with data collected during the Cloud H and movement of the TCC exercise. Significantly (p less than .05) lower responses for ventilatory frequency (Vf) (11.3 and 15.7 breaths.min-1), ventilatory equivalent (VE/VO2) (23.47 and 27.41), and the ratio of dead space ventilation to tidal volume (VD/VT) (20 and 27%) were found in TCC in comparison to cycle ergometry. The percentage of minute ventilation used for alveolar ventilation was significantly higher during TCC (p less than .03) than cycle ergometry, with mean values of 81.1% and 73.1%, respectively. Cardiac output, stroke volume, and heart rate were not significantly different between TCC exercise and cycle ergometry at the same oxygen consumption. We concluded that, during TCC, expert practitioners show significantly different ventilatory responses leading to more efficient use of the ventilatory volume than would be expected from comparable levels of exertion on a cycle ergometer. 相似文献
117.
Three librarians who have extensive experience working in libraries or for publishers, vendors, or consortia presented an informal discussion on librarian–vendor relationships. The audience was encouraged to participate. Problems were articulated; speakers and audience members contributed suggestions for better approaches or behaviors when handling difficult situations. 相似文献
118.
Robin Patric Clair Nadia E. Brown Debbie S. Dougherty Hannah K. Delemeester Patricia Geist-Martin William I. Gorden 《Journal of Applied Communication Research》2019,47(2):111-129
#MeToo has breathed new life into the women’s movement and especially into understanding and rectifying sexual harassment, abuse and assault. It has galvanized activists around the globe. And it has placed thousands of stories of the harassed in full view of the public. Sexual harassment, abuse and assault may occur within the organizational context or beyond; but sexual harassment, in particular has been legally labeled an organizational phenomenon. With this in mind, Robin Clair frames the early part of this article around the most recent organizational communication theories (see the appendix for an overview of these theories). Following the essay is a forum, in which invited scholars address questions related to the #MeToo movement. 相似文献
119.
Infant Attachment Security and Early Childhood Behavioral Inhibition Interact to Predict Adolescent Social Anxiety Symptoms
下载免费PDF全文
![点击此处可从《Child development》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Erin Lewis‐Morrarty Kathryn A. Degnan Andrea Chronis‐Tuscano Daniel S. Pine Heather A. Henderson Nathan A. Fox 《Child development》2015,86(2):598-613
Insecure attachment and behavioral inhibition (BI) increase risk for internalizing problems, but few longitudinal studies have examined their interaction in predicting adolescent anxiety. This study included 165 adolescents (ages 14–17 years) selected based on their reactivity to novelty at 4 months. Infant attachment was assessed with the Strange Situation. Multimethod BI assessments were conducted across childhood. Adolescents and their parents independently reported on anxiety. The interaction of attachment and BI significantly predicted adolescent anxiety symptoms, such that BI and anxiety were only associated among adolescents with histories of insecure attachment. Exploratory analyses revealed that this effect was driven by insecure‐resistant attachment and that the association between BI and social anxiety was significant only for insecure males. Clinical implications are discussed. 相似文献
120.