全文获取类型
收费全文 | 166篇 |
免费 | 34篇 |
国内免费 | 62篇 |
出版年
2023年 | 7篇 |
2022年 | 9篇 |
2021年 | 7篇 |
2020年 | 17篇 |
2019年 | 5篇 |
2018年 | 9篇 |
2017年 | 15篇 |
2016年 | 14篇 |
2015年 | 6篇 |
2014年 | 11篇 |
2013年 | 18篇 |
2012年 | 14篇 |
2011年 | 14篇 |
2010年 | 10篇 |
2009年 | 10篇 |
2008年 | 9篇 |
2007年 | 20篇 |
2006年 | 16篇 |
2005年 | 9篇 |
2004年 | 8篇 |
2003年 | 13篇 |
2002年 | 8篇 |
2001年 | 2篇 |
2000年 | 2篇 |
1999年 | 2篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1993年 | 3篇 |
1988年 | 1篇 |
排序方式: 共有262条查询结果,搜索用时 15 毫秒
221.
222.
223.
以年龄在55—79岁的正常人(男40人,女34人,平均年龄64.34±5.67岁)为被试,做视觉诱发电位(VEP),并测试韦氏智力测验的11项分值及智力商数、临床记忆测验的5项分测验及记忆商数、测量血压和头颅CT的脑萎缩程度,根据眼底动脉硬化表现和神经体征确定脑动脉硬化的程度.将上述资料数字化输入计算机进行多因素逐步回归分析。结果表明,智力和记忆力分别与视觉诱发电位的某些指标变量有关,与脑动脉硬化程度有关,与收缩压相关性较大,与舒张压相关性不大,与生理性脑萎缩程度关系不大。还探讨了推测老年人智力和记忆力的计算公式。 相似文献
224.
抚养困难与教养行为的关系及其调节因素 总被引:1,自引:0,他引:1
本研究考察了567名2-5岁幼儿母亲的抚养困难与教养行为的关系,并进一步探讨了在高抚养困难情景下母亲教养行为的可能调节因素.结果发现(1)幼儿母亲的抚养困难感受总分与其教养行为的各个侧面均有非常显著的相关,母亲抚养困难程度越高,则其敏感性、参与性、积极情感及对儿童发展的指导性均较低,而其对儿童的消极情感较多;(2)回归分析表明,来自儿童侧面的"积极强化缺乏"、"多动/注意分散"、"不良心境"与"过度要求"以及来自母亲侧面的"缺乏依恋"、"缺乏能力感"等方面的抚养困难是预测母亲教养行为的重要因素;(3)在母亲抚养困难较高的情况下,夫妻双方的受教育水平分别对母亲教养行为的一些侧面具有调节作用. 相似文献
225.
也子曾经说过:“兴于诗,立于礼,成于乐”。这就是说,一个人只有通过音乐才能真正完成自身,成为一个真正成熟了的人,但是,究竟为什么呢?本文试图回 一问题,论文的观点是,音乐使人摆脱了以视觉为中心的空间视野,把人的完成安置在时间的视域中,这样,“成于乐”就意味着成为一个“即从即成”(即始始终)的“时者”(时间人)。因此,“成于乐”也就是说人的存在成为一项永远都不能完成和终结,到死都在寻求某种新的开始的无尽的事业,换言之,通过“成于乐”,人的存在获得了时间性的维度。 相似文献
226.
对北京市389名儿童入学准备的类型进行研究,探讨不同入学准备类型儿童的特点,并通过追踪数据考察儿童入学准备类型对其一学期后学校适应的影响。结果表明:(1)入学准备可以分为入学准备良好、身体健康和动作技能准备不足、身体健康和动作技能突出/其他领域准备不足和入学准备综合不足四种类型;(2)女生入学准备良好型的比例显著高于男生,而身体健康和动作技能准备不足型、入学准备综合不足型的比例显著低于男生;(3)城区儿童入学准备良好型的比例显著高于郊区,而入学准备综合不足型的比例显著低于郊区;(4)入学准备良好型儿童的学校适应好于身体健康和动作技能准备不足型和入学准备综合不足型,入学准备综合不足型的学校适应最差。 相似文献
227.
陈赟 《Frontiers of Philosophy in China》2009,4(4):537-551
In Zhongyong 中庸 (The Doctrine of the Mean), cheng 诚 (sincerity) is the “Dao of all Daos”, the “virtue of all virtues”, and thus connects the Dao of humans and that of Heaven.
The Dao of humans can reveal the sincerity in the Dao of Heaven in two approaches: to contemplate on sincerity and to conduct
in sincerity. Meanwhile, sincerity in the Dao of Heaven is unfolded in everything’s seeking for its own nature and destiny,
thus the most fundamental approach for the Dao of humans to reveal the sincerity in the Dao of Heaven is for humans to seek
for everything’s own nature and destiny. 相似文献
228.
A reexamination of ethnicity as a risk factor for adolescent suicidal behavior, focusing on whether Mexican American youths are at increased risk, was undertaken. Data from a sample of 4,175 African, European, and Mexican Americans, aged 11-17, are presented. We examined lifetime attempts and past year attempts, thoughts, and plans. Odds ratios, adjusting for covariates, indicate no differences between European and Mexican Americans on past year thoughts, plans, or attempts or lifetime attempts. Although some studies have reported Mexican American youths are at increased risk, we did not find any differences. Possible explanations for disparate results across studies are discussed, in particular methods effects. 相似文献
229.
Yun SH Lee DS Lee H Baeg EH Kim YB Jung MW 《Learning & memory (Cold Spring Harbor, N.Y.)》2007,14(3):190-194
To obtain evidence linking long-term potentiation (LTP) and memory, we examined whether LTP induction modifies functional relationship among neurons in the rat hippocampus. In contrast to neurons in low-frequency stimulated or AP5-treated slices, LTP induction altered 'functional connectivity,' as defined by the degree of synchronous firing, among simultaneously recorded neurons in the CA3 region. Interestingly, functional connectivity changed bidirectionally so that the total sum of functional connectivity remained constant. These results demonstrate LTP-induced changes in neuronal functional connectivity and suggest the existence of a normalization mechanism for the total sum of functional connectivity. 相似文献
230.
Jack Tsai Crystal Yun See Lee Thomas Byrne Robert H. Pietrzak Steven M. Southwick 《American journal of community psychology》2017,60(3-4):599-606
Public attitudes on homelessness can and has influenced policies and services for homeless populations. This study surveyed national public attitudes about homelessness in the 21st century and examined changes in attitudes in the past two decades. An online survey of public attitudes about homelessness was conducted with 541 U.S. adults across 47 states in November 2016 using Amazon Mechanical Turk. Survey results were compared to two public surveys conducted in 1990. Compared to previous surveys, the current sample endorsed more compassion, government support, and liberal attitudes about homelessness. The largest changes were related to increased support for homeless individuals to use public spaces for sleeping and panhandling. When asked about the demographic composition of the homeless population, the contemporary sample tended to overestimate the proportions who were young and racial/ethnic minorities, while underestimating the proportions who were married, or had mental health or substance abuse problems. Together, the findings suggest there has been an increase in compassion and liberal attitudes toward homelessness in the past two decades. Greater support for homeless individuals during an era of economic recessions and governmental homeless initiatives presents opportunities for new public health approaches to address homelessness. 相似文献