全文获取类型
收费全文 | 1671篇 |
免费 | 52篇 |
出版年
2022年 | 13篇 |
2021年 | 20篇 |
2020年 | 30篇 |
2019年 | 32篇 |
2018年 | 36篇 |
2017年 | 55篇 |
2016年 | 52篇 |
2015年 | 23篇 |
2014年 | 41篇 |
2013年 | 184篇 |
2012年 | 60篇 |
2011年 | 75篇 |
2010年 | 45篇 |
2009年 | 56篇 |
2008年 | 58篇 |
2007年 | 59篇 |
2006年 | 54篇 |
2005年 | 49篇 |
2004年 | 67篇 |
2003年 | 46篇 |
2002年 | 48篇 |
2001年 | 35篇 |
2000年 | 35篇 |
1999年 | 45篇 |
1998年 | 39篇 |
1997年 | 28篇 |
1996年 | 16篇 |
1995年 | 29篇 |
1994年 | 28篇 |
1993年 | 25篇 |
1992年 | 24篇 |
1991年 | 21篇 |
1990年 | 18篇 |
1989年 | 12篇 |
1988年 | 14篇 |
1987年 | 12篇 |
1986年 | 10篇 |
1985年 | 11篇 |
1984年 | 13篇 |
1983年 | 10篇 |
1982年 | 9篇 |
1981年 | 9篇 |
1980年 | 10篇 |
1978年 | 13篇 |
1977年 | 10篇 |
1975年 | 11篇 |
1974年 | 21篇 |
1972年 | 10篇 |
1970年 | 12篇 |
1968年 | 13篇 |
排序方式: 共有1723条查询结果,搜索用时 51 毫秒
1.
Philosophia - Salmon (1970) was the first to speak explicitly of paradoxes of kinematics. In this short note I introduce a new class of infinity puzzles. Following natural terminology, they should... 相似文献
2.
Sense of community and well-being are considered core tenets in the field of community psychology, acting as focal points for theory, research, and action. This integrative review synthesizes the empirical literature on sense of community and well-being with respect to four research questions focused on the relationships between these variables, the methodologies used to study those relationships, and how future research might expand upon the current literature. A search of the available literature produced 30 articles that met the search criteria, based primarily on conceptualizations and measurement of both sense of community and hedonic and eudaimonic well-being. This review suggests a general consensus across the literature of a positive relationship between sense of community and well-being among both youth and adults in a variety of settings, and discusses the strengths and limitations of this area of research, pointing to the need for more nuanced, ecologically valid research that incorporates more qualitative and critical methodologies. We hope that this review can promote a more thorough understanding of how sense of community and individual well-being relate to each other, and that ongoing research in this area can be a catalyst for action research and interventions that are applied to pressing contemporary issues as well as strengths-based approaches focused on how to foster and support the well-being of individuals within their community contexts. 相似文献
3.
Michael T. McKay James R. Andretta Noah R. Padgett Jon C. Cole 《International journal of psychology》2020,55(6):901-906
Using data from a longitudinal study, the present study employed a latent class mover-stayer analytical strategy to examine both the cross-sectional and longitudinal (+33 months) relationship between membership of stress classes, and subjective life expectancy. Participants were from 21 High schools in Scotland and Northern Ireland. Data were collected in the first year of High school (mean age = 12.5 years), and at +33 months (fourth year, or school year 11). Sample 1 consisted of 1171 adolescents (40.82% females, 2.56% unreported) in Northern Ireland. Sample 2 consisted of 1059 adolescents (52.79% females, 1.32% unreported) in Scotland. Adolescents with the lowest levels of stress projected the highest subjective life expectancy scores. Longitudinal analyses were jumbled and not in keeping with cross-sectional results. More research may be needed on the trajectory of subjective life expectancy over time before it can be depended upon as a reliable outcome variable in adolescent development. 相似文献
4.
Jon Carlson 《Counseling and values》2010,54(2):154-156
From the standpoint of a former journal editor and long‐time professional, this commentary challenges the direction of the profession as demonstrated in this special section. The ongoing creation of more and more ethical constraints not only harms the profession but also loses sight of fundamental ethical principles. 相似文献
5.
6.
7.
8.
9.
10.
The present experiments were designed to teach pigeons to discriminate two locations represented by color photographs. Two sets of photographs were taken at two distinctive locations on a university campus. These sets represented several standpoints at each location. For the true-discrimination group, pictures from the two locations were differentially associated with reward; for the pseudodiscrimination group, half of the views from each location were arbitrarily but consistently associated with reward. The former group acquired the discrimination much more rapidly. These birds also showed good transfer to new views from the standpoints used in training and to a new standpoint at each location not used in training. In a second experiment, another group of pigeons could terminate any training trial by pecking an “advance” key. Three of 4 subjects used this option to reduce the duration of trials in which pictures from the negative location were presented. These data suggest that pigeons can integrate views shown in pictures into a “concept” of a location. The method used here may be the experimental analogue of a common, natural process by which animals learn to identify locations. 相似文献