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   1962篇
  免费   139篇
  2101篇
  2023年   27篇
  2022年   21篇
  2021年   50篇
  2020年   69篇
  2019年   76篇
  2018年   88篇
  2017年   95篇
  2016年   103篇
  2015年   62篇
  2014年   69篇
  2013年   242篇
  2012年   107篇
  2011年   113篇
  2010年   47篇
  2009年   51篇
  2008年   81篇
  2007年   63篇
  2006年   57篇
  2005年   61篇
  2004年   34篇
  2003年   32篇
  2002年   32篇
  2001年   14篇
  2000年   16篇
  1999年   15篇
  1998年   13篇
  1997年   19篇
  1996年   15篇
  1995年   11篇
  1990年   18篇
  1989年   15篇
  1988年   11篇
  1987年   14篇
  1986年   14篇
  1985年   11篇
  1984年   14篇
  1983年   13篇
  1982年   22篇
  1981年   19篇
  1980年   12篇
  1979年   11篇
  1978年   15篇
  1977年   13篇
  1976年   16篇
  1975年   15篇
  1974年   16篇
  1973年   12篇
  1965年   9篇
  1964年   10篇
  1961年   9篇
排序方式: 共有2101条查询结果,搜索用时 8 毫秒
141.
Transparency International (TI) is a coalition of individuals that has served as a facilitator against corruption for the past 20 years. The organization first approached its task with a focus on laws concerning corruption and whistleblowing, but corruption does have the capability to win against this institution as well. TI has produced well-known initiatives such as the annual Corruption Perception Index; other formal monitoring includes the Global Corruption Barometer, the Bribe-Payers' Index, the East African Bribery Index, National Integrity Studies, and social auditors present in many nations. Diverse less-familiar initiatives noted here include integrity work in Kenyan election campaigns, monitoring of international professional sports, and integrity clubs at schools and colleges. TI is a coalition of individuals bound together by a common vision of a corruption-free world. A focus on business, a focus on integrity for those within each nation's political system and process, and a truly internationalized process are necessary for these efforts to produce a corruption-free world. The incentive that keeps states interested in acting as safe havens for corrupt persons needs to be eliminated and a new global standard of disclosure adopted.  相似文献   
142.
Research finds that Americans who espouse theologically conservative beliefs about the Bible generally oppose same‐sex marriage. Studies exploring this link, however, have been limited in that their operationalization of fundamentalist belief has been problematically conceptualized and they have potentially confounded the effect of conservative religious identity. The current study asks: (1) How do distinct beliefs about the nature and authority of the Bible influence same‐sex marriage support? (2) Do these beliefs influence same‐sex marriage support independently of conservative religious identity? (3) To what extent do Bible beliefs and conservative religious identity moderate one another's effects? And (4) to what extent are these factors moderated by religious tradition and frequency of Bible reading? Analyses of 2006 Portraits of American Life Study data reveal that while identifying as religiously conservative is the strongest predictor of opposition to same‐sex marriage, believing in inerrancy and creationism remain strong predictors in full models. I also find moderating effects between belief in creationism, inerrancy, inspiration; religious‐conservative identity; and religious tradition. Findings clarify how theological beliefs and religious identity shape support for same‐sex marriage across religious traditions.  相似文献   
143.
The reinforcer pathology model posits that core behavioral economic mechanisms, including delay discounting and behavioral economic demand, underlie adverse health decisions and related clinical disorders. Extensions beyond substance use disorder and obesity, however, are limited. Using a reinforcer pathology framework, this study evaluates medical adherence decisions in patients with multiple sclerosis. Participants completed behavioral economic measures, including delay discounting, probability discounting, and a medication purchase task. A medical decision-making task was also used to evaluate how sensitivity to mild side effect risk and efficacy contributed to the likelihood of taking a hypothetical disease-modifying therapy. Less steep delay discounting and more intense (greater) medication demand were independently associated with greater adherence to the medication decision-making procedure. More generally, the pattern of interrelations between the medication-specific and general behavioral economic metrics was consistent with and contributes to the reinforcer pathology model. Additional research is warranted to expand these models to different populations and health behaviors, including those of a positive health orientation (i.e., medication adherence).  相似文献   
144.
145.
Hardcore actualism (HA) grounds all modal truths in the concrete constituents of the actual world (see, e.g., Borghini and Williams (2008), Jacobs (2010), Vetter (2015)). I bolster HA, and elucidate the very nature of possibility (and necessity) according to HA, by considering if it can validate S5 modal logic. Interestingly, different considerations pull in different directions on this issue. To resolve the tension, we are forced to think hard about the nature of the hardcore actualist’s modal reality and how radically this departs from possible worlds orthodoxy. Once we achieve this departure, the prospects of a hardcore actualist validation of S5 look considerably brighter. This paper thus strengthens hardcore actualism by arguing that it can indeed validate S5–arguably the most popular logic of metaphysical modality–and, in the process, it elucidates the very nature of modality according to this revisionary, but very attractive, modal metaphysics.  相似文献   
146.
Fletcher  Samuel C. 《Synthese》2021,198(9):8873-8900
Synthese - I provide a formally precise account of diachronic emergence of properties as described within scientific theories, extending a recent account of synchronic emergence using similarity...  相似文献   
147.
Justifying intellectual property on the basis of labour is an understandably popular strategy, but there is a tension in basing some intellectual property claims on labour that has gone largely unnoticed in treatments of the subject: many forms of innovation cause people to lose their jobs, which seriously hampers the ability of those who lose work to productively use their own labour. This article shows that even under Lockean and other labour-based justifications of intellectual property rights those who claim property rights to innovations of this type have special obligations to compensate those who lose work because of their inventions. By examining the problem that such innovations create, I hope to contribute to larger debates about automation and the job losses it often brings. Lockean and other labour-based theories of intellectual property are generally taken to secure strong, noninstrumental rights to intellectual property if they are successful. So, if even these theories imply that those who profit from the innovations driving automation have special obligations to those left jobless by it, that is strong evidence that they do in fact have such obligations.  相似文献   
148.
149.
Understanding how parents influence their child’s medical procedures can inform future work to reduce pediatric procedural distress and improve recovery outcomes. Following a pediatric injury or illness diagnosis, the associated medical procedures can be potentially traumatic events that are often painful and distressing and can lead to the child experiencing long-term physical and psychological problems. Children under 6 years old are particularly at risk of illness or injury, yet their pain-related distress during medical procedures is often difficult to manage because of their young developmental level. Parents can also experience ongoing psychological distress following a child’s injury or illness diagnosis. The parent and parenting behavior is one of many risk factors for increased pediatric procedural distress. The impact of parents on pediatric procedural distress is an important yet not well-understood phenomenon. There is some evidence to indicate parents influence their child through their own psychological distress and through parenting behavior. This paper has three purposes: (1) review current empirical research on parent-related risk factors for distressing pediatric medical procedures, and longer-term recovery outcomes; (2) consider and develop existing theories to present a new model for understanding the parent–child distress relationship during medical procedures; and (3) review and make recommendations regarding current assessment tools and developing parenting behavior interventions for reducing pediatric procedural distress.  相似文献   
150.
Five‐month‐old infants selectively attend to novel people who sing melodies originally learned from a parent, but not melodies learned from a musical toy or from an unfamiliar singing adult, suggesting that music conveys social information to infant listeners. Here, we test this interpretation further in older infants with a more direct measure of social preferences. We randomly assigned 64 11‐month‐old infants to 1–2 weeks’ exposure to one of two novel play songs that a parent either sang or produced by activating a recording inside a toy. Infants then viewed videos of two new people, each singing one song. When the people, now silent, each presented the infant with an object, infants in both conditions preferentially chose the object endorsed by the singer of the familiar song. Nevertheless, infants’ visual attention to that object was predicted by the degree of song exposure only for infants who learned from the singing of a parent. Eleven‐month‐olds thus garner social information from songs, whether learned from singing people or from social play with musical toys, but parental singing has distinctive effects on infants’ responses to new singers. Both findings support the hypothesis that infants endow music with social meaning. These findings raise questions concerning the types of music and behavioral contexts that elicit infants’ social responses to those who share music with them, and they support suggestions concerning the psychological functions of music both in contemporary environments and in the environments in which humans evolved.  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