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   4940篇
  免费   73篇
  5013篇
  2021年   56篇
  2020年   86篇
  2019年   95篇
  2018年   158篇
  2017年   153篇
  2016年   147篇
  2015年   94篇
  2014年   86篇
  2013年   417篇
  2012年   198篇
  2011年   188篇
  2010年   103篇
  2009年   121篇
  2008年   144篇
  2007年   142篇
  2006年   126篇
  2005年   111篇
  2004年   105篇
  2003年   84篇
  2002年   73篇
  2001年   134篇
  2000年   95篇
  1999年   83篇
  1996年   42篇
  1993年   44篇
  1992年   63篇
  1991年   71篇
  1990年   59篇
  1989年   58篇
  1988年   67篇
  1987年   58篇
  1986年   51篇
  1985年   60篇
  1984年   60篇
  1983年   48篇
  1982年   53篇
  1981年   41篇
  1979年   57篇
  1978年   59篇
  1977年   51篇
  1976年   45篇
  1975年   64篇
  1974年   61篇
  1973年   58篇
  1972年   52篇
  1971年   52篇
  1969年   37篇
  1968年   49篇
  1967年   60篇
  1966年   43篇
排序方式: 共有5013条查询结果,搜索用时 0 毫秒
51.
Muslim‐Christian relations in modem Sudanese history involve the tensions created by the transition from imperial rule to independence and by the impact of contemporary processes of globalization. The conflicts between Christian missionaries and the newly‐independent government of Sudan in the early 1960s reflected the tensions between old mission‐station style Christian activities and attempts by a military régime to impose measures of ‘national’ unification. Opportunities for creating institutions for constructive interactions were missed or not even conceived. Lessons from the experiences of the early 1960s emphasize the importance of viewing Muslim‐Christian relations in the 1990s in the context of the actual current conditions rather than imposing out‐of‐date images on existing realities.  相似文献   
52.
For years articles have decried the lack of empathy in physicians' relationships with patients. In addition to being empathetic, physicians are called upon to assume the posture of value neutrality, i.e., not imposing one's values when dealing with patients. Empathy is clearly an expression of deeply held values; even the language used to define it is value-laden. Physicians are consistently called upon to exhibit traits which are expressions of their underlying values. However, if proponents of value-neutrality are to be taken literally one must not impose any of one's values on one's patients. But then one wonders how empathy could ever be expressed; further, it is hard to imagine what a truly value neutral physician would be like. It is time we recognize that any relationship between two persons requires the expression of values from both parties. These values help shape that relationship and define its further history. Physicians are not excluded from this process just because they consider themselves professionals. Divulging personal values to patients is both more honest and more in keeping with the concepts of justice, beneficence, non maleficence, and autonomy than to feign value-neutrality. A presentation of some type statement of values is timely and would give patients an idea of where a physician stands on a myriad of issues. Rather than being value-neutral, value non-neutrality seems a more right and reasonable posture for physicians to assume.  相似文献   
53.
54.
55.
Many have asked how and why feminist theory makes a distinctive contribution to bioethics. In this essay, I outline two ways in which feminist reflection can enrich bioethical studies. First, feminist theory may expose certain themes of androcentric reasoning that can affect, in sometimes crude but often subtle ways, the substantive analysis of topics in bioethics; second, it can unearth the gendered nature of certain basic philosohical concepts that form the working tools of ethical theory.  相似文献   
56.
57.
58.
59.
60.
A mathematical model, based on additive subcomponents of grouping, subitizing and adding, was derived to account for quantification latencies of three-dimensional block arrangements. Subitizing is the process that people use to directly quantify a small number of objects without counting. It was found that most people consistently subitized up to four blocks. With more than four blocks, people resorted to grouping and adding, and the model was able to account for these data. The structural variables of compactness, symmetry, linearity, and planarity were shown to have small effects on quantification latencies relative to the large effect of number of blocks. Of these structural variables, compactness had the largest effect, and in terms of the model, it is suggested that visual structure had its effect on the perceptual grouping subcomponent.  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