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   1548280篇
  免费   104748篇
  国内免费   4378篇
耳鼻咽喉   18304篇
儿科学   51675篇
妇产科学   40892篇
基础医学   219052篇
口腔科学   38279篇
临床医学   149898篇
内科学   295778篇
皮肤病学   27749篇
神经病学   131223篇
特种医学   57665篇
外国民族医学   402篇
外科学   215561篇
综合类   31847篇
现状与发展   1篇
一般理论   550篇
预防医学   137600篇
眼科学   32257篇
药学   110737篇
  7篇
中国医学   3857篇
肿瘤学   94072篇
  2021年   11833篇
  2019年   12651篇
  2018年   37477篇
  2017年   28896篇
  2016年   32082篇
  2015年   16992篇
  2014年   22902篇
  2013年   34998篇
  2012年   53919篇
  2011年   69625篇
  2010年   46120篇
  2009年   37299篇
  2008年   63734篇
  2007年   68549篇
  2006年   48963篇
  2005年   48785篇
  2004年   47911篇
  2003年   46558篇
  2002年   43408篇
  2001年   61758篇
  2000年   63488篇
  1999年   53084篇
  1998年   15450篇
  1997年   14008篇
  1996年   13678篇
  1995年   12995篇
  1994年   12136篇
  1993年   11396篇
  1992年   42136篇
  1991年   41298篇
  1990年   40021篇
  1989年   37819篇
  1988年   35010篇
  1987年   34119篇
  1986年   32494篇
  1985年   31007篇
  1984年   23354篇
  1983年   19943篇
  1982年   12115篇
  1981年   10588篇
  1979年   21067篇
  1978年   15037篇
  1977年   12283篇
  1976年   12091篇
  1975年   12284篇
  1974年   14996篇
  1973年   14669篇
  1972年   13514篇
  1971年   12551篇
  1970年   11641篇
排序方式: 共有10000条查询结果,搜索用时 0 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