全文获取类型
收费全文 | 822篇 |
免费 | 63篇 |
出版年
2024年 | 2篇 |
2023年 | 17篇 |
2022年 | 20篇 |
2021年 | 24篇 |
2020年 | 27篇 |
2019年 | 25篇 |
2018年 | 56篇 |
2017年 | 54篇 |
2016年 | 50篇 |
2015年 | 38篇 |
2014年 | 38篇 |
2013年 | 111篇 |
2012年 | 42篇 |
2011年 | 37篇 |
2010年 | 34篇 |
2009年 | 15篇 |
2008年 | 45篇 |
2007年 | 36篇 |
2006年 | 30篇 |
2005年 | 26篇 |
2004年 | 20篇 |
2003年 | 19篇 |
2002年 | 12篇 |
2001年 | 5篇 |
2000年 | 19篇 |
1999年 | 6篇 |
1998年 | 4篇 |
1997年 | 5篇 |
1996年 | 5篇 |
1994年 | 6篇 |
1993年 | 6篇 |
1992年 | 3篇 |
1989年 | 3篇 |
1988年 | 7篇 |
1987年 | 2篇 |
1986年 | 5篇 |
1984年 | 6篇 |
1983年 | 2篇 |
1981年 | 2篇 |
1980年 | 1篇 |
1979年 | 3篇 |
1978年 | 1篇 |
1977年 | 3篇 |
1976年 | 1篇 |
1974年 | 1篇 |
1973年 | 2篇 |
1972年 | 1篇 |
1971年 | 1篇 |
1963年 | 1篇 |
1961年 | 1篇 |
排序方式: 共有885条查询结果,搜索用时 31 毫秒
101.
102.
103.
104.
105.
Berislav Marušić 《Pacific Philosophical Quarterly》2017,98(Z1):249-256
There is often something wrong with merely promising to try to φ. In this article I explain what is wrong with such promises. I argue that a promise to try to φ, when it is entirely up to us to φ, is always wrong because it hides a possible choice under the veil of our susceptibility to circumstances beyond our control. I furthermore argue that this is often also the case when matters are not entirely up to us. Finally, I contend that sometimes the promise to try places undue burdens on the promisee. 相似文献
106.
Slavoj Zbreveizbreveek Ph.D. 《Psychoanalytic Dialogues》2013,23(2):271-275
107.
Z. Bujas Silvija Szabo Mirjana Kovačić Am Rohaček 《Attention, perception & psychophysics》1974,15(2):210-214
In spite of a clear increment in absolute thresholds as an effect of self-adaptation, the electrically provoked taste sensation does not show a reduction in subjective intensity during the protracted stimulation time. Chemical cross-adaptation effects on the threshold and suprathreshold levels of electrical taste are observed only when the adapting solutions are electrolytes regardless of their taste qualities. It seems that the stability of perceived intensity during current flow is principally due to some irritation of the sensitive tissue of the tongue, whereas cross-adaptation effects may be attributed to the potential changes across the excitable membranes caused by electrical properties of adapting electrolytic solutions. 相似文献
108.
The realities of human agency and decision making pose serious challenges for research ethics. This article explores six major challenges that require more attention in the ethics education of students and scientists and in the research on ethical conduct in science. The first of them is the routinization of action, which makes the detection of ethical issues difficult. The social governance of action creates ethical problems related to power. The heuristic nature of human decision making implies the risk of ethical bias. The moral disengagement mechanisms represent a human tendency to evade personal responsibility. The greatest challenge of all might be the situational variation in people’s ethical behaviour. Even minor situational factors have a surprisingly strong influence on our actions. Furthermore, finally, the nature of ethics itself also causes problems: instead of clear answers, we receive a multitude of theories and intuitions that may sometimes be contradictory. All these features of action and ethics represent significant risks for ethical conduct in science. I claim that they have to be managed within the everyday practices of science and addressed explicitly in research ethics education. I analyse them and suggest some ways in which their risks can be alleviated. 相似文献
109.
The purpose of this paper is to investigate differences in expressed attitude as a function of the manner in which information on perceived risk is communicated. The experiments are conducted through a choice‐based questionnaire to reflect the consumer‐oriented decision of the purchase of a bottle of wine based on posted prices. The experiments reported in this paper are based on questionnaires distributed to 323 participants in multiple samples and examine the behavior of people when faced with different information on the probability of loss. The present study demonstrates that changes in the manner in which information is presented, without any underlying change in problem structure, affects observed preferences when buying wine. The impact of perceived risk and character on the willingness to buy and to pay for a bottle is analyzed and show that price habits and perceived risk are the main factors affecting the willingness to pay for a bottle of wine. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
110.
Comparison of the Effects of Telephone Suicide Prevention Help by Volunteers and Professional Paid Staff: Results from Studies in the USA and Quebec,Canada
下载免费PDF全文
![点击此处可从《Suicide & life-threatening behavior》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Brian L. Mishara PhD Marc Daigle PhD Cécile Bardon PhD François Chagnon PhD Bogdan Balan MD PhD Sylvaine Raymond MA Julie Campbell MA 《Suicide & life-threatening behavior》2016,46(5):577-587
Research since the 1960s has consistently found that lay volunteers are better at helping suicidal callers than professionals. Yet, professional degrees are increasingly becoming requirements for helpline workers. In our first study, we conducted post hoc comparisons of U.S. helplines with all professional paid staff, all lay volunteers, and a mix of both, using silent monitoring and standardized assessments of 1,431 calls. The volunteer centers more often conducted risk assessments, had more empathy, were more respectful of callers, and had significantly better call outcome ratings. A second study of five Quebec suicide prevention centers used silent monitoring to compare telephone help in 1,206 calls answered by 90 volunteers and 39 paid staff. Results indicate no significant differences between the volunteers and paid employees on outcome variables. However, volunteers and paid staff with over 140 hours of call experience had significantly better outcomes. Unlike the United States, Quebec paid employees were not required to have advanced professional degrees. We conclude from these results and previous research that there is no justification for requiring that suicide prevention helpline workers be mental health professionals. In fact, the evidence to date indicates that professionals may be less effective in providing telephone help to suicidal individuals when compared to trained lay volunteers. 相似文献