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   2876篇
  免费   298篇
  国内免费   138篇
  2024年   21篇
  2023年   87篇
  2022年   50篇
  2021年   89篇
  2020年   179篇
  2019年   161篇
  2018年   155篇
  2017年   155篇
  2016年   146篇
  2015年   96篇
  2014年   158篇
  2013年   342篇
  2012年   68篇
  2011年   95篇
  2010年   88篇
  2009年   91篇
  2008年   113篇
  2007年   143篇
  2006年   129篇
  2005年   119篇
  2004年   105篇
  2003年   118篇
  2002年   95篇
  2001年   94篇
  2000年   55篇
  1999年   49篇
  1998年   38篇
  1997年   44篇
  1996年   27篇
  1995年   34篇
  1994年   20篇
  1993年   29篇
  1992年   16篇
  1991年   16篇
  1990年   11篇
  1989年   7篇
  1987年   5篇
  1986年   2篇
  1985年   5篇
  1984年   6篇
  1983年   3篇
  1982年   4篇
  1981年   6篇
  1980年   7篇
  1979年   6篇
  1978年   5篇
  1977年   8篇
  1976年   2篇
  1975年   6篇
  1974年   2篇
排序方式: 共有3312条查询结果,搜索用时 31 毫秒
231.
Engineering ethics, individuals, and organizations   总被引:1,自引:0,他引:1  
This article evaluates a family of criticism of how engineering ethics is now generally taught. The short version of the criticism might be put this way: Teachers of engineering ethics devote too much time to individual decisions and not enough time to social context. There are at least six version of this criticism, each corresponding to a specific subject omitted. Teachers of engineering ethics do not (it is said) teach enough about: 1) the culture of organizations; 2) the organization of organizations; 3) the legal environment of organizations; 4) the role of professions in organizations; 5) the role of organizations in professions; or 6) the political environment of organizations. My conclusion is that, while all six are worthy subjects, there is neither much reason to believe that any of them are now absent from courses in engineering ethics nor an obvious way to decide whether they (individually or in combination) are (or are not) now being given their due. What we have here is a dispute about how much is enough. Such disputes are not to be settled without agreement concerning how we are to tell we have enough of this or that. Right now we seem to lack that agreement—and not to have much reason to expect it any time soon. An earlier version of this paper was presented at the 2005 conference, Ethics and Social Responsibility in Engineering and Technology, Linking Workplace Ethics and Education, co-hosted by Gonzaga University and Loyola Marymount University, Los Angeles, CA, USA, 9–10 June 2005.  相似文献   
232.
Pharmaceutical companies are major sponsors of biomedical research. Most scholars and policymakers focus their attention on government and academic oversight activities, however. In this article, I consider the role of pharmaceutical companies’ internal ethics statements in guiding decisions about corporate research and development (R&D). I review materials from drug company websites and contributions from the business and medical ethics literature that address ethical responsibilities of businesses in general and pharmaceutical companies in particular. I discuss positive and negative uses of pharmaceutical companies’ ethics materials and describe shortcomings in the companies’ existing ethics programs. To guide employees and reassure outsiders, companies must add rigor, independence, and transparency to their R&D ethics programs.  相似文献   
233.
It is commonly assumed that persons who hold abortions to be generally impermissible must, for the same reasons, be opposed to embryonic stem cell research [ESR]. Yet a settled position against abortion does not necessarily direct one to reject that research. The difference in potentiality between the embryos used in ESR and embryos discussed in the abortion debate can make ESR acceptable even if one holds that abortion is impermissible. With regard to their potentiality, in vitro embryos are here argued to be more morally similar to clonable somatic cells than they are to in vivo embryos. This creates an important moral distinction between embryos in vivo and in vitro. Attempts to refute this moral distinction, raised in the recent debate in this journal between Alfonso Gómez-Lobo and Mary Mahowald, are also addressed.  相似文献   
234.
Human beings with diminished decision-making capacities are usually thought to require greater protections from the potential harms of research than fully autonomous persons. Animal subjects of research receive lesser protections than any human beings regardless of decision-making capacity. Paradoxically, however, it is precisely animals’ lack of some characteristic human capacities that is commonly invoked to justify using them for human purposes. In other words, for humans lesser capacities correspond to greater protections but for animals the opposite is true. Without explicit justification, it is not clear why or whether this should be the case. Ethics regulations guiding human subject research include principles such as respect for persons—and related duties—that are required as a matter of justice while regulations guiding animal subject research attend only to highly circumscribed considerations of welfare. Further, the regulations guiding research on animals discount any consideration of animal welfare relative to comparable human welfare. This paper explores two of the most promising justifications for these differences␣between the two sets of regulations. The first potential justification points to lesser moral status for animals on the basis of their lesser capacities. The second potential justification relies on a claim about the permissibility of moral partiality as␣found in common morality. While neither potential justification is sufficient to justify the regulatory difference as it stands, there is possible common ground between supporters of some regulatory difference and those rejecting the current difference.  相似文献   
235.
Differential reinforcement of alternative behavior (DRA) is used frequently as a treatment for problem behavior. Previous studies on treatment integrity failures during DRA suggest that the intervention is robust, but research has not yet investigated the effects of different types of integrity failures. We examined the effects of two types of integrity failures on DRA, starting with a human operant procedure and extending the results to children with disabilities in a school setting. Human operant results (Experiment 1) showed that conditions involving reinforcement for problem behavior were more detrimental than failing to reinforce appropriate behavior alone, and that condition order affected the results. Experiments 2 and 3 replicated the effects of combined errors and sequence effects during actual treatment implementation.  相似文献   
236.
Distribution-free tests of stochastic dominance for small samples   总被引:1,自引:0,他引:1  
One variable is said to “stochastically dominate” another if the probability of observations smaller than x is greater for one variable than the other, for all x. Inferring stochastic dominance from data samples is important for many applications of econometrics and experimental psychology, but little is known about the performance of existing inferential methods. Through simulation, we show that three of the most widely used inferential methods are inadequate for use in small samples of the size commonly encountered in many applications (up to 400 observations from each distribution). We develop two new inferential methods that perform very well in a limited, but practically important, case where the two variables are guaranteed not to be equal in distribution. We also show that extensions of these new methods, and an improved version of an existing method, perform quite well in the original, unlimited case.  相似文献   
237.
This multifaceted work on chess played without sight of the pieces is a sophisticated psychologist's examination of this topic and of chess skill in general, including a detailed and comprehensive historical account. This review builds on Hearst and Knott's assertion that chess can provide a uniquely useful model for research on several issues in the area of cognitive skill and imagery. A key issue is the relationship between viewing a stimulus and mental imagery in the light of blindfold chess masters' consistent reports that they do not use or have images. This review also proposes a methodology for measuring and quantifying an individual's skill shortfall from a theoretical maximum. This methodology, based on a 1951 proposal by Claude Shannon, is applicable to any choice situation in which all the available choices are known. The proposed “Proficiency” measure reflects the equivalent number of “yes—no” questions that would have been required to arrive at a best choice, considering also the time consumed. As the measure provides a valid and nonarbitrary way to compare different skills and the effects of different independent variables on a given skill, it may have a wide range of applications in cognitive skill research, skill training, and education.  相似文献   
238.
239.
The author offers a critique on current counseling psychology research from her perspective as a US counseling psychology researcher and editor. She notes that unless something happens to change the trajectory, future US counseling psychology research will be open to the same criticisms. She summarizes counseling psychology values and argues that counseling psychology research reflects those values. She then identifies five ways that counseling psychology could be different in the future by: building theory-based research, embracing diversity of populations, research questions and methodologies, informing (and being informed) by other psychological disciplines, and informing policy and practice.  相似文献   
240.
临床医学八年制内科学床旁教学应用传统的教学模式及基于案例的学习(CBL)单一教学方法难以满足教学要求.将CBL与基于问题的学习(PBL)及研讨会(Seminar)结合的立体教学模式应用于呼吸科的床旁教学实践中,激发了学生学习的积极性、创新性,培养了学生良好的团队合作精神和临床思维模式,提高了学生们解决临床问题的能力,并能加深师生互动交流,达到教学相长的目的.  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