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   1365750篇
  免费   102106篇
  国内免费   4345篇
耳鼻咽喉   17163篇
儿科学   44766篇
妇产科学   37124篇
基础医学   201436篇
口腔科学   36306篇
临床医学   135024篇
内科学   263102篇
皮肤病学   26684篇
神经病学   114740篇
特种医学   48811篇
外国民族医学   367篇
外科学   186758篇
综合类   29051篇
现状与发展   1篇
一般理论   508篇
预防医学   118953篇
眼科学   29301篇
药学   100585篇
  6篇
中国医学   3202篇
肿瘤学   78313篇
  2021年   11548篇
  2019年   12359篇
  2018年   17171篇
  2017年   12909篇
  2016年   13922篇
  2015年   15932篇
  2014年   21847篇
  2013年   33706篇
  2012年   46592篇
  2011年   49400篇
  2010年   28452篇
  2009年   26174篇
  2008年   44864篇
  2007年   47231篇
  2006年   47312篇
  2005年   45669篇
  2004年   43493篇
  2003年   41233篇
  2002年   39975篇
  2001年   61030篇
  2000年   62686篇
  1999年   52477篇
  1998年   14913篇
  1997年   13528篇
  1996年   13333篇
  1995年   12621篇
  1994年   11805篇
  1993年   11084篇
  1992年   41674篇
  1991年   40853篇
  1990年   39528篇
  1989年   37421篇
  1988年   34660篇
  1987年   33761篇
  1986年   32232篇
  1985年   30707篇
  1984年   23107篇
  1983年   19652篇
  1982年   11827篇
  1979年   20835篇
  1978年   14839篇
  1977年   12098篇
  1976年   11895篇
  1975年   12132篇
  1974年   14815篇
  1973年   14479篇
  1972年   13368篇
  1971年   12425篇
  1970年   11493篇
  1969年   10415篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
Objectives: The steeling effect suggests that early-life adversity can have a beneficial impact later in life. However, little is known about its underlying mechanisms and long-term outcomes . The study aimed to examine the role of early-life adversity (ELA) on successful aging, and whether this relationship can be explained by mental and physical health.

Method: Socio-demographics, early-life adversity (ELA), individual quality of life (iQoL), and mental and physical health of 270 individuals (Mage = 66.82 years, 71.5% female) were assessed. Polynomial regressions and mediation analyses were conducted.

Results: Significant inverse U-shaped associations were found between ELA and iQoL (β = ?.59, p = .005) and between ELA and mental health (β = ?.64, p = .002), but not between ELA and physical health. Furthermore, mental health significantly mediated the relationship between ELA and iQoL (b = ?.84, BCa CI [?1.66, ?.27]).

Conclusion: Highest level of individual quality of life (i.e. successful aging) was related to a moderate amount of ELA. Additionally, mental health significantly mediated this relationship. These findings suggest that some amount of ELA could be beneficial for successful aging. Resource-focused interventions are needed to improve health and promote successful aging for an underdetected, at-risk subgroup with low early-life adversity.  相似文献   

10.
Abstract

Objectives: This study examined word use as an indicator of interpersonal positive reframing in daily conversations of couples coping with breast cancer and as a predictor of stress.

Design: The Electronically Activated Recorder (EAR) and Linguistic Inquiry and Word Count (LIWC) were used to examine naturally occurring word use conceptually linked to positive reframing (positive emotion, negative emotion, and cognitive processing words).

Sample: Fifty-two couples coping with breast cancer.

Methods: Couples wore the EAR, a device participants wear, that audio-recorded over one weekend (>16,000 sound files), and completed self-reports of positive reframing (COPE) and stress (Perceived Stress Scale). LIWC, a software program, measured word use.

Findings: Both partners’ word use (i.e., positive emotion and cognitive processing words) was associated with their own reported positive reframing, and spouses’ word use was also indicative of patients’ positive reframing. Results also revealed that, in general, words indicating positive reframing predicted lower levels of stress.

Conclusions: Findings supported the hypothesis that partners—and particularly spouses of breast cancer patients—may assist each other’s coping by positively reframing the cancer experience and other negative experiences in conversation.  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