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   20871篇
  免费   61篇
  国内免费   59篇
  20991篇
  2024年   4篇
  2023年   17篇
  2022年   9篇
  2021年   14篇
  2020年   15篇
  2019年   15篇
  2018年   3496篇
  2017年   2837篇
  2016年   2259篇
  2015年   203篇
  2014年   91篇
  2013年   131篇
  2012年   582篇
  2011年   2412篇
  2010年   2544篇
  2009年   1500篇
  2008年   1729篇
  2007年   2209篇
  2006年   48篇
  2005年   232篇
  2004年   189篇
  2003年   124篇
  2002年   73篇
  2001年   42篇
  2000年   63篇
  1999年   23篇
  1998年   24篇
  1997年   26篇
  1996年   10篇
  1995年   3篇
  1994年   3篇
  1993年   6篇
  1992年   4篇
  1991年   2篇
  1990年   11篇
  1989年   7篇
  1987年   3篇
  1986年   3篇
  1985年   3篇
  1983年   2篇
  1982年   2篇
  1980年   2篇
  1974年   1篇
  1973年   6篇
  1971年   1篇
  1970年   1篇
  1969年   2篇
  1968年   1篇
  1967年   1篇
  1964年   2篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
92.
Grant Havers 《Sophia》2015,54(4):525-543
The political philosopher Leo Strauss is famous for contending that any synthesis of reason and revelation is impossible, since they are irreconcilable antagonists. Yet he is also famous for praising the secular regime of liberal democracy as the best regime for all human beings, even though he is well aware that modern philosophers such as Spinoza thought this regime must make use of biblical morality to promote good citizenship. Is democracy, then, both religious and secular? Strauss thought that Spinoza was contradictory in teaching that reason and revelation should be separated from each other while also insisting that a secular democratic politics still requires the biblical morality of charity (love thy neighbor as thyself). The paradox that liberal democracy is both religious and secular, which is central to Spinoza, was dismissed by Strauss as a Machiavellian subterfuge or the cynical attempt to use religion for political purposes. In order to adhere to his dualistic separation of reason and revelation, Strauss turned to ancient Greek political philosophy, particularly the ideas of Plato and Aristotle, as the true ground of liberal democracy since this classical tradition was never exposed to biblical revelation. Yet, the illiberal and hierarchical implications of Greek political thought, which clash with Strauss’s modern views on human individuality and dignity, ultimately take him back to the biblically based philosophies of Spinoza and Kierkegaard, who teach the paradox that the Bible is the true foundation of human freedom.  相似文献   
93.
The various problems associated with co-authorship of research articles have attracted much attention in recent years. We believe that this (hopefully) growing awareness is a very welcome development. However, we will argue that the particular and increasing importance of authorship and the harmful implications of current practices of research authorship for junior researchers have not been emphasised enough. We will use the case of our own research area (bioethics) to illustrate some of the pitfalls of current publishing practices—in particular, the impact on the evaluation of one’s work in the area of employment or funding. Even where there are explicit guidelines, they are often disregarded. This disregard, which is often exemplified through the inflation of co-authorship in some research areas, may seem benign to some of us; but it is not. Attribution of co-authorship for reasons other than merit in relation to the publication misrepresents the work towards that publication, and generates unfair competition. We make a case for increasing awareness, for transparency and for more explicit guidelines and regulation of research co-authorship within and across research areas. We examine some of the most sensitive areas of concern and their implications for researchers, particularly junior ones, and we suggest several strategies for future action.  相似文献   
94.
The aim of the study was to evaluate the changes in the subjective quality of life (QoL) and health state of unemployed people at the age of 45 and older in the city environment. The study also aimed at evaluating some social and demographic factors on the quality of life and health of the unemployed. A group of 454 unemployed people aged 45 and older, registered in labour offices in the city of ?ód?, Poland were included in the study. Two groups were formed: short-term and long-term unemployed. QoL was measured with the WHOQOL-Bref questionnaire. The main problems formulated in the study were: Does QoL and health state decrease during the period of unemployment and in what aspects? What factors can modify the changes of QoL of the unemployed? The findings of the analysis indicate that unemployment entails many negative health consequences and the long-term stress connected with being out of work leads to the decline in the quality of life and worsening of mental state. The multidimensional effects of unemployment depend not only on the economic situation of the particular household, but also on perceived health status, personal relationships and the sense of ability to work.  相似文献   
95.
96.
African ethical theories tend to hold that moral agents ought to be partial, in the sense that they should favour members of their family or close community. This is considered an advantage over the impartiality of many Western moral theories, which are regarded as having counterintuitive implications, such as the idea that it is unethical to save a family member before a stranger. The partiality of African ethics is thought to be particularly valuable in the context of bioethics. Thaddeus Metz, in particular, argues that his African-derived theory best accounts for a number of plausible intuitions, such as the intuition that health care practitioners ought to be biased towards the patients for whom they are directly responsible. In this article, I claim that the plausible intuitions drawn on in favour of partiality can be satisfactorily explained on the basis of impartial moral theories. Moreover, I argue that blanket acceptance of partiality has problematic consequences for distributive justice in resource allocation in biomedical contexts. By contrast, impartial theories can justify plausible instances of partiality whilst avoiding the pitfalls of fully partial moral theories. Although this provides grounds for abandoning partiality in principle, I claim that this finding should not be seen as damaging to African medical ethics. Instead, it prompts investigation of underexplored possibilities of impartial African moral theories. To demonstrate the value of this direction, I sketch some novel and attractive conceptions that combine impartiality with elements of African ethics.  相似文献   
97.
98.
Numerous previous investigators have explained species differences in spatial memory performance in terms of differences in foraging ecology. In three experiments we attempted to extend these findings by examining the extent to which the spatial memory performance of echidnas (or "spiny anteaters") can be understood in terms of the spatio-temporal distribution of their prey (ants and termites). This is a species and a foraging situation that have not been examined in this way before. Echidnas were better able to learn to avoid a previously rewarding location (to "win-shift") than to learn to return to a previously rewarding location (to "win-stay"), at short retention intervals, but were unable to learn either of these strategies at retention intervals of 90 min. The short retention interval results support the ecological hypothesis, but the long retention interval results do not. Electronic Publication  相似文献   
99.
100.
The young adult years are particularly important for accruing the education and work experience needed for long-term economic stability. We examine the effects of symptoms of ODD at baseline (i.e., T1 ages 12 to 18 years; N = 662; 48 % male) and of increases in these symptoms on academic and occupational functioning in young adulthood (i.e., T6 ages 22 to 29 years; N = 478; 45 % male) using multiple measures; including achievement levels (i.e., educational attainment, occupational prestige, and income) and financial and work stress (i.e., debt, financial strain, and perceived workplace stress). Our findings show that both adolescent levels of and increases in symptoms of ODD influence academic and occupational functioning in young adulthood. We discuss the implications of ODD symptoms for accruing economic capital in young adulthood, as well as approaches to detecting and intervening that are needed to halt the potentially cascading effects of ODD symptoms.  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