全文获取类型
收费全文 | 28212篇 |
免费 | 1175篇 |
国内免费 | 15篇 |
出版年
2020年 | 369篇 |
2019年 | 341篇 |
2018年 | 577篇 |
2017年 | 506篇 |
2016年 | 571篇 |
2015年 | 395篇 |
2014年 | 527篇 |
2013年 | 2177篇 |
2012年 | 925篇 |
2011年 | 987篇 |
2010年 | 557篇 |
2009年 | 629篇 |
2008年 | 870篇 |
2007年 | 874篇 |
2006年 | 780篇 |
2005年 | 731篇 |
2004年 | 705篇 |
2003年 | 674篇 |
2002年 | 645篇 |
2001年 | 911篇 |
2000年 | 874篇 |
1999年 | 693篇 |
1998年 | 334篇 |
1997年 | 315篇 |
1996年 | 273篇 |
1995年 | 262篇 |
1993年 | 266篇 |
1992年 | 569篇 |
1991年 | 500篇 |
1990年 | 545篇 |
1989年 | 455篇 |
1988年 | 428篇 |
1987年 | 419篇 |
1986年 | 441篇 |
1985年 | 507篇 |
1984年 | 400篇 |
1983年 | 351篇 |
1982年 | 276篇 |
1981年 | 260篇 |
1979年 | 380篇 |
1978年 | 319篇 |
1977年 | 273篇 |
1975年 | 347篇 |
1974年 | 403篇 |
1973年 | 384篇 |
1972年 | 297篇 |
1971年 | 273篇 |
1968年 | 328篇 |
1967年 | 274篇 |
1966年 | 311篇 |
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
31.
Do the conditions under which promises are made determine whether they ought to be kept? Philosophers have placed a number of conditions on promising which, they hold, must be met in order to make promise-keeping obligatory. In so doing, they have distinguished valid promises from invalid promises and justified promises from promises that are not justified. Considering such conditions, one by one, we argue that they are mistaken. In the first place, the conditions they lay down are not necessary for either valid or justified promise-making. In the second place, promises need not meet such conditions in order to create moral obligations. In general, such analyses of promising fail because they suffer from a confusion between promise-making and promise-keeping. Philosophers have wrongly supposed that obligations to keep promises are dependent upon, or derivable from, the quality of the promises themselves, at the time they are made, instead of focusing on conditions that must be satisfied at the time when promises are supposed to be kept. It is not the quality of a promise that determines an obligation to keep it but the rightness or wrongness of performing the promised act. 相似文献
32.
33.
Kristine L S P McVea 《Health psychology》2006,25(5):558-562
OBJECTIVE: This report reviews the evidence that informs the role of health and mental health care providers in addressing youth smoking cessation. DESIGN: Qualitative literature review. RESULTS: Physicians do not consistently screen adolescents for tobacco use and fail to provide recommended cessation advice. Challenges to addressing smoking cessation include the need for procedures to ensure confidentiality and the existence of competing demands to provide other services. Few published studies have specifically addressed the effectiveness of clinical interventions. Interventions that require return visits or follow-up phone contacts are technically difficult to implement in this population. Successful interventions may require resources not available in nonresearch settings. Most studies have used brief clinical intervention as a control condition, making it impossible to evaluate its effectiveness. CONCLUSION: There is little evidence that supports current clinical smoking cessation guidelines for adolescents. More research is needed to develop inexpensive, efficient clinical interventions that can provide youths access to smoking cessation help. Future challenges include reorganizing clinical systems to offer greater counseling by support staff or in electronic formats and to provide effective booster messages and follow-up care in a population that is difficult to track. 相似文献
34.
35.
36.
Thomas Teo 《Social and Personality Psychology Compass》2010,4(5):295-303
This article discusses the meaning of epistemological violence in the empirical social sciences. It is argued that the concept is closer to personal than to structural violence in that it has a subject, an object, and an action, even if the violence is indirect and nonphysical: the subject of violence is the researcher, the object is the Other, and the action is the interpretation of data that is presented as knowledge. Using a hypothetical example, the problem of interpretation in empirical research on the Other is discussed. Epistemological violence refers to the interpretation of social-scientific data on the Other and is produced when empirical data are interpreted as showing the inferiority of or problematizes the Other, even when data allow for equally viable alternative interpretations. Interpretations of inferiority or problematizations are understood as actions that have a negative impact on the Other. Because the interpretations of data emerge from an academic context and thus are presented as knowledge, they are defined as epistemologically violent actions. Problems, consequences, and practices surrounding this concept are discussed. 相似文献
37.
38.
39.
Kristen P. Jones Judith A. Clair Eden B. King Beth K. Humberd David F. Arena 《Personnel Psychology》2020,73(3):431-458
Pregnancy reflects a common experience for women in today's workforce, yet recent data suggest that some women scale back or leave the workforce following childbirth. Considering these effects on women's careers, researchers have sought to understand the underlying dynamics of these decisions. Here, we explore a paradoxical reason for weakened postpartum career attitudes: help that women receive during pregnancy. We integrate stereotype threat and benevolent sexism theories to explain how the effects of help on postpartum intentions to quit may be transmitted through reductions in work self-efficacy. In doing so, we consider the role of perceived impact—or the extent to which help interferes with versus enables women's perceived ability to continue performing their work role. Results of a weekly diary study of 105 pregnant employees suggest that work-interfering help led to decreased self-efficacy for work during the following week. Furthermore, there was an indirect effect of average help received at work during pregnancy on postpartum intentions to quit the workforce through reductions in work self-efficacy that was stronger insofar as help was work-interfering versus work-enabling. Taken together, our results highlight unintended negative consequences that occur when others provide ineffective support to women at work during pregnancy. 相似文献
40.