全文获取类型
收费全文 | 18034篇 |
免费 | 744篇 |
国内免费 | 4篇 |
专业分类
18782篇 |
出版年
2020年 | 170篇 |
2019年 | 275篇 |
2018年 | 323篇 |
2017年 | 293篇 |
2016年 | 328篇 |
2015年 | 213篇 |
2014年 | 311篇 |
2013年 | 1509篇 |
2012年 | 518篇 |
2011年 | 571篇 |
2010年 | 321篇 |
2009年 | 362篇 |
2008年 | 474篇 |
2007年 | 503篇 |
2006年 | 485篇 |
2005年 | 385篇 |
2004年 | 414篇 |
2003年 | 374篇 |
2002年 | 365篇 |
2001年 | 478篇 |
2000年 | 536篇 |
1999年 | 364篇 |
1998年 | 222篇 |
1997年 | 170篇 |
1996年 | 185篇 |
1995年 | 181篇 |
1992年 | 295篇 |
1991年 | 304篇 |
1990年 | 324篇 |
1989年 | 295篇 |
1988年 | 284篇 |
1987年 | 249篇 |
1986年 | 267篇 |
1985年 | 279篇 |
1984年 | 215篇 |
1983年 | 225篇 |
1982年 | 183篇 |
1981年 | 173篇 |
1980年 | 175篇 |
1979年 | 270篇 |
1978年 | 238篇 |
1975年 | 242篇 |
1974年 | 263篇 |
1973年 | 288篇 |
1972年 | 234篇 |
1971年 | 222篇 |
1969年 | 203篇 |
1968年 | 265篇 |
1967年 | 246篇 |
1966年 | 222篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
Robert M. Klassen Rebecca P. Ang Wan Har Chong Lindsey L. Krawchuk Vivien S. Huan Isabella Y.F. Wong Lay See Yeo 《Psychologie appliquee》2010,59(3):361-379
Two studies are reported examining academic procrastination and motivation in 1,145 university students from Canada and Singapore. In Study 1, relationships between procrastination and motivation variables were found to be similar across contexts, with self‐efficacy for self‐regulated learning most strongly associated with procrastination in both contexts. In Study 2, patterns of procrastinating behavior and the negative impact of procrastination were examined and compared in Canadian and Singaporean undergraduates. Participants in both contexts reported writing to be the academic task most prone to procrastination. More Singaporeans than Canadians were classified as negative procrastinators (i.e. rated procrastination as a negative influence on academic functioning). In both contexts, negative procrastinators spent more time procrastinating than neutral procrastinators and displayed lower self‐efficacy for self‐regulated learning. On décrit deux recherches portant sur la motivation et la procrastination universitaire (tendance à remettre au lendemain) de 1145 étudiants du Canada et de Singapour. Dans la première étude, les relations entre la motivation et la procrastination sont apparues être analogues dans les deux pays, la variable la plus fortement associéà la procrastination étant l'auto‐efficience pour l'apprentissage autorégulé. Dans la deuxième étude, les schémas comportementaux de procrastination et son impact négatif ont été analysés et comparés chez les étudiants de 1° cycle canadiens et singapouriens. Les sujets des deux pays ont mentionné la rédaction comme étant la tâche universitaire la plus soumise à la procrastination. Davantage de Singapouriens que de Canadiens été classés en procrastinateurs négatifs (c'est‐à‐dire que la procrastination est considérée comme étant un handicap pour les études). Dans les deux cas, les procrastinateurs négatifs gaspillaient plus de temps que les procrastinateurs neutres et manifestaient une moindre auto‐efficience pour l'apprentissage autorégulé. 相似文献
2.
3.
4.
5.
Samuel Weir 《Philosophical Investigations》2007,30(2):172-178
The received view of Kripke's Wittgenstein on Rules and Private Language is that it fails as an interpretation because, inter alia, it ignores or overlooks what Wittgenstein has to say in the second paragraph of Philosophical Investigations (PI) 201. In this paper, I demonstrate that the paragraph in question is in fact fully accommodated within Kripke's reading, and cannot therefore be reasonably utilised to object to it. In part one I characterise the objection; in part two I explain why it fails; in part three I suggest why commentators might have been motivated to offer it; and in part four I claim that two commentators who have offered it also imply otherwise. 相似文献
6.
NORMAN R. F. MAIER 《Personnel Psychology》1970,23(4):455-461
7.
8.
9.
Abby C King Bess Marcus David Ahn Andrea L Dunn W Jack Rejeski James F Sallis Mace Coday 《Health psychology》2006,25(3):336-347
The authors used recursive partitioning methods to identify combinations of baseline characteristics that predict 2-year physical activity success in each of 3 physical activity interventions delivered in the multisite Activity Counseling Trial. The sample consisted of 874 initially sedentary primary care patients, ages 35-75 years, who were at risk for cardiovascular disease. Predictors of 2-year success were specific to each intervention and represented a range of domains, including physiological, demographic, psychosocial, health-related, and environmental variables. The results indicate how specific patient subgroups (e.g., obese, unfit individuals; high-income individuals in stable health) may respond differently to varying levels and amounts of professional assistance and support. The methods used provide a practical first step toward identifying clinically meaningful patient subgroups for further systematic investigation. 相似文献
10.
ABSTRACT Are there distinctively political values? Certain egalitarians seem to think that equality is one such value. Scheffler's contribution to the symposium seeks to articulate a division of moral labour between norms of personal morality and the principles of justice that regulate social institutions, and using this suggests that the egalitarian critique of Rawls can be deflected. In this paper, instead, I question the status of equality as an intrinsic value. I argue that an egalitarianism which focuses on the status of equality as valuable in itself embraces a theory of value with the worst elements of utilitarianism (in particular its consequentialism) while leaving behind any of the intuitive appeal that utilitarianism has. In its place I press that we need a political conception of egalitarianism which stresses the role of equality as a political ideal without presupposing any values with which we engage beyond those found in the norms of personal morality. 相似文献