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   3175篇
  免费   129篇
  国内免费   1篇
  2023年   29篇
  2022年   19篇
  2021年   37篇
  2020年   68篇
  2019年   80篇
  2018年   89篇
  2017年   97篇
  2016年   79篇
  2015年   51篇
  2014年   69篇
  2013年   368篇
  2012年   104篇
  2011年   131篇
  2010年   99篇
  2009年   138篇
  2008年   107篇
  2007年   99篇
  2006年   110篇
  2005年   94篇
  2004年   100篇
  2003年   92篇
  2002年   94篇
  2001年   39篇
  2000年   43篇
  1999年   40篇
  1998年   42篇
  1997年   44篇
  1996年   38篇
  1995年   48篇
  1994年   35篇
  1993年   40篇
  1992年   29篇
  1991年   39篇
  1990年   33篇
  1989年   35篇
  1988年   26篇
  1987年   26篇
  1986年   34篇
  1985年   38篇
  1984年   38篇
  1983年   40篇
  1982年   43篇
  1981年   51篇
  1980年   24篇
  1979年   34篇
  1978年   33篇
  1977年   31篇
  1976年   32篇
  1975年   29篇
  1974年   21篇
排序方式: 共有3305条查询结果,搜索用时 15 毫秒
1.
2.
The received view of Kripke's Wittgenstein on Rules and Private Language is that it fails as an interpretation because, inter alia, it ignores or overlooks what Wittgenstein has to say in the second paragraph of Philosophical Investigations (PI) 201. In this paper, I demonstrate that the paragraph in question is in fact fully accommodated within Kripke's reading, and cannot therefore be reasonably utilised to object to it. In part one I characterise the objection; in part two I explain why it fails; in part three I suggest why commentators might have been motivated to offer it; and in part four I claim that two commentators who have offered it also imply otherwise.  相似文献   
3.
OBJECTIVE: Compare the efficacy of a multicomponent social support intervention to standard-of-care counseling on medication adherence among HIV-infected patients initiating antiretroviral therapy. DESIGN: Randomized controlled trial. Generalized estimating equations tested for differences in the percentage of participants achieving 90% adherence. MAIN OUTCOME MEASURES: Pill-taking, electronically monitored over 6 consecutive months; plasma viral load (VL), assessed at 3 and 6 months following initiation of therapy. RESULTS: Of 226 participants who were randomized and began the trial, 87 (38%) were lost to the study by 6 months. The proportion of adherent participants declined steadily over time, with no time by group interaction. Sustained adherence was associated with increased odds of achieving an undetectable VL (OR=1.78; 95% CI=1.01, 3.13). In intention-to-treat analyses, a larger proportion of the intervention group than the control group was adherent (40.15% vs. 27.59%, p=.02) and achieved an undetectable VL p=.04). However, the majority of participants who remained on study experienced some reduction in VL (>or=1-log drop or undetectable), regardless of experimental condition. CONCLUSION: The multicomponent social support intervention significantly improved medication adherence over standard-of-care counseling; evidence for improved virologic outcomes was inconsistent. Early discontinuation of care and treatment may be a greater threat to the health of HIV patients than imperfect medication-taking.  相似文献   
4.
5.
ABSTRACT Are there distinctively political values? Certain egalitarians seem to think that equality is one such value. Scheffler's contribution to the symposium seeks to articulate a division of moral labour between norms of personal morality and the principles of justice that regulate social institutions, and using this suggests that the egalitarian critique of Rawls can be deflected. In this paper, instead, I question the status of equality as an intrinsic value. I argue that an egalitarianism which focuses on the status of equality as valuable in itself embraces a theory of value with the worst elements of utilitarianism (in particular its consequentialism) while leaving behind any of the intuitive appeal that utilitarianism has. In its place I press that we need a political conception of egalitarianism which stresses the role of equality as a political ideal without presupposing any values with which we engage beyond those found in the norms of personal morality.  相似文献   
6.
7.
8.
9.
10.
Native Hawaiian high school students, N = 1779, were surveyed for symptoms of psycho-pathology and suicide attempts in the previous 6 months. Seventy-seven (4.3%) of the students reported making a suicide attempt. There were no significant differences in prevalence rates for males and females. Depression, anxiety, aggression, substance abuse symptoms, and low family support, but not peer support, were significantly correlated with suicide attempts. On logistic regression, depression, substance abuse, and family support independently predicted attempts. The lack of gender difference may indicate a cultural characteristic of the Hawaiian population that differentiates it from mainstream American populations but likens it to the Native American population.  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