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   3434篇
  免费   1413篇
  国内免费   41篇
  2024年   1篇
  2023年   8篇
  2022年   11篇
  2021年   82篇
  2020年   91篇
  2019年   385篇
  2018年   273篇
  2017年   388篇
  2016年   370篇
  2015年   345篇
  2014年   302篇
  2013年   532篇
  2012年   278篇
  2011年   208篇
  2010年   253篇
  2009年   224篇
  2008年   209篇
  2007年   136篇
  2006年   116篇
  2005年   126篇
  2004年   92篇
  2003年   98篇
  2002年   101篇
  2001年   83篇
  2000年   70篇
  1999年   34篇
  1998年   6篇
  1997年   9篇
  1996年   2篇
  1995年   5篇
  1994年   6篇
  1993年   2篇
  1992年   5篇
  1991年   5篇
  1990年   3篇
  1989年   5篇
  1988年   1篇
  1987年   3篇
  1986年   3篇
  1985年   2篇
  1984年   4篇
  1983年   3篇
  1982年   2篇
  1981年   1篇
  1980年   1篇
  1977年   1篇
  1976年   1篇
  1975年   1篇
  1972年   1篇
排序方式: 共有4888条查询结果,搜索用时 15 毫秒
981.
982.
比较不同剂量的前列腺素E1注射液在早期2型糖尿病肾病患者中的临床疗效.最终随机纳入91例早期2型糖尿病肾病患者,分别接受10μg/d(A组,n=47)与20μg/d(B组,n=44)的前列腺素E1治疗,2周后观察8小时尿微量白蛋白排泄率(UAER)、血尿素氮(BUN)和肌酐(Cr)的变化.结果显示,两组患者治疗后UAER、BUN、Cr均较治疗前明显下降,都具有统计学差异(P均<0.05),但A、B两组之间UAER下降幅度不一,B组较A组下降幅度更明显,具有统计学差异(P<0.001);两者之间BUN下降幅度相比没有统计学差异(P>0.05).两者之间的Cr下降幅度相比有统计学差异(P<0.05).由此推断,前列腺素El治疗早期糖尿病肾病,降低尿蛋白确实有效,而且前列腺素E1 20μg/d的剂量要比10μg/d降低尿蛋白效果更好.  相似文献   
983.
984.
985.
986.
987.
Kuba Krys  Colin A. Capaldi  Wijnand van Tilburg  Ottmar V. Lipp  Michael Harris Bond  C.‐Melanie Vauclair  L. Sam S. Manickam  Alejandra Domínguez‐Espinosa  Claudio Torres  Vivian Miu‐Chi Lun  Julien Teyssier  Lynden K. Miles  Karolina Hansen  Joonha Park  Wolfgang Wagner  Angela Arriola Yu  Cai Xing  Ryan Wise  Chien‐Ru Sun  Razi Sultan Siddiqui  Radwa Salem  Muhammad Rizwan  Vassilis Pavlopoulos  Martin Nader  Fridanna Maricchiolo  María Malbran  Gwatirera Javangwe  İdil Işık  David O. Igbokwe  Taekyun Hur  Arif Hassan  Ana Gonzalez  Márta Fülöp  Patrick Denoux  Enila Cenko  Ana Chkhaidze  Eleonora Shmeleva  Radka Antalíková  Ramadan A. Ahmed 《International journal of psychology》2018,53(Z1):21-26
Inequalities between men and women are common and well‐documented. Objective indexes show that men are better positioned than women in societal hierarchies—there is no single country in the world without a gender gap. In contrast, researchers have found that the women‐are‐wonderful effect—that women are evaluated more positively than men overall—is also common. Cross‐cultural studies on gender equality reveal that the more gender egalitarian the society is, the less prevalent explicit gender stereotypes are. Yet, because self‐reported gender stereotypes may differ from implicit attitudes towards each gender, we reanalysed data collected across 44 cultures, and (a) confirmed that societal gender egalitarianism reduces the women‐are‐wonderful effect when it is measured more implicitly (i.e. rating the personality of men and women presented in images) and (b) documented that the social perception of men benefits more from gender egalitarianism than that of women.  相似文献   
988.
Loneliness has been found to predict a wide range of physical and mental health problems. It is suggested that China's One‐Child Policy places young Chinese people at a particularly high risk for loneliness. Although loneliness is most prevalent in late adolescence and early adulthood, interventions have primarily targeted children or older adults with limited success. The current study examines a pilot randomized controlled trial of a mindfulness training program among Chinese college students. Participants with elevated loneliness (N = 50, ages 17–25) were randomized into either an 8‐week mindfulness training or a control group. Self‐reported measures of loneliness and mindfulness were administered at baseline and posttest. The training group also completed a program evaluation form and a 3‐month follow‐up assessment. Results provided preliminary evidence indicating that the intervention was feasible and effective at reducing loneliness among Chinese college students. Limitations and future directions were discussed.  相似文献   
989.
One of the most commonly used distinctions in cross‐cultural studies is the one between individualism and collectivism. One of the criticisms levelled at this distinction is that it fails to incorporate the differences that may exist when comparing people from a rural context with little formal education to people from the same group who live in an urban context where formal education is the norm. Bearing in mind these sociodemographic factors, we have compared the self‐concepts among 104 young indigenous people in Chiapas (Mexico), having divided them into three groups: “rural‐traditional,” “rural–urban” and “urban.” These people's self‐concepts were analysed using a task that contrasts personal self‐concept with social self‐concept and a technique in which participants draw themselves along with the things and people they consider most important to them. The results reveal significant differences between the three groups. The personal categories are given a higher value in the “urban” group while the social categories score higher in the “rural‐traditional” group. Regarding the results of the indigenous self‐portraits, from the content analysis of the drawings, 16 categories emerged. These findings are discussed in the light of Greenfield's theory of social change and human development.  相似文献   
990.
This study examined both the development of synchronisation activities and the way emotion affects these activities in children and adults. Children aged from 3 to 8 years, as well as adults, performed a spontaneous motor tempo (SMT) task and a synchronisation task with a 500‐millisecond and 700‐millisecond inter‐stimulus interval (ISI), followed by a continuation task, in both an emotion‐free and an emotional context (High‐Arousal, Low‐Arousal, and Neutral). The results showed that the SMT was faster and more variable in the younger children. In addition, the younger children found it more difficult to slow down their tapping rate in synchrony with the 700‐millisecond ISI, with the result that they quickly returned to their internal tempo in the continuation phase. In contrast, the 8‐year‐olds' synchronisation performance was close to that of the adults. However, despite developmental changes in synchronisation skills, all the participants produced faster tempi in both the SMT and the synchronisation task for the High‐Arousal emotion than for the other emotions. This suggests that emotions induce an automatic distortion of motor timing as has also been observed for the perception of time.  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