全文获取类型
收费全文 | 1024篇 |
免费 | 198篇 |
国内免费 | 88篇 |
专业分类
1310篇 |
出版年
2024年 | 6篇 |
2023年 | 40篇 |
2022年 | 35篇 |
2021年 | 47篇 |
2020年 | 79篇 |
2019年 | 64篇 |
2018年 | 59篇 |
2017年 | 75篇 |
2016年 | 55篇 |
2015年 | 31篇 |
2014年 | 57篇 |
2013年 | 139篇 |
2012年 | 29篇 |
2011年 | 55篇 |
2010年 | 26篇 |
2009年 | 32篇 |
2008年 | 37篇 |
2007年 | 43篇 |
2006年 | 42篇 |
2005年 | 54篇 |
2004年 | 52篇 |
2003年 | 41篇 |
2002年 | 28篇 |
2001年 | 16篇 |
2000年 | 24篇 |
1999年 | 17篇 |
1998年 | 11篇 |
1997年 | 19篇 |
1996年 | 8篇 |
1995年 | 8篇 |
1994年 | 14篇 |
1993年 | 3篇 |
1992年 | 6篇 |
1991年 | 3篇 |
1990年 | 1篇 |
1989年 | 3篇 |
1987年 | 3篇 |
1986年 | 4篇 |
1985年 | 4篇 |
1984年 | 4篇 |
1982年 | 5篇 |
1981年 | 2篇 |
1980年 | 3篇 |
1979年 | 2篇 |
1978年 | 3篇 |
1977年 | 8篇 |
1976年 | 7篇 |
1975年 | 6篇 |
排序方式: 共有1310条查询结果,搜索用时 0 毫秒
91.
Prior research has documented negative, concurrent relations between internalizing symptomatology and academic achievement among adolescents. The present study provided the first rigorous, longitudinal examination of the bi-directional, prospective relations between adolescent internalizing symptomatology and academic achievement. One hundred and thirty adolescents reported depression and anxiety annually from 6th through 10th grades, and GPA records were obtained annually from schools. Results showed that (a) high depression and anxiety at the beginning of a school year predicted lower GPA during that school year, and (b) low GPA in any school year predicted higher depression and anxiety at the beginning of the following school year. These findings underscore the tight link between adolescent internalizing symptomatology and academic achievement. 相似文献
92.
Context Matters for Social-Emotional Learning: Examining Variation in Program Impact by Dimensions of School Climate 下载免费PDF全文
Meghan P. McCormick Elise Cappella Erin E. O’Connor Sandee G. McClowry 《American journal of community psychology》2015,56(1-2):101-119
This paper examines whether three dimensions of school climate—leadership, accountability, and safety/respect—moderated the impacts of the INSIGHTS program on students’ social‐emotional, behavioral, and academic outcomes. Twenty‐two urban schools and N = 435 low‐income racial/ethnic minority students were enrolled in the study and received intervention services across the course of 2 years, in both kindergarten and first grade. Intervention effects on math and reading achievement were larger for students enrolled in schools with lower overall levels of leadership, accountability, and safety/respect at baseline. Program impacts on disruptive behaviors were greater in schools with lower levels of accountability at baseline; impacts on sustained attention were greater in schools with lower levels of safety/respect at baseline. Implications for Social‐Emotional Learning program implementation, replication, and scale‐up are discussed. 相似文献
93.
A conspicuous oversight in recent debates about the vexed problem of the value of knowledge has been the value of knowledge-how. This would not be surprising if knowledge-how were, as Gilbert Ryle [1945, 1949] famously thought, fundamentally different from knowledge-that. However, reductive intellectualists [e.g. Stanley and Williamson 2001; Brogaard 2008, 2009, 2011; Stanley 2011a, 2011b] maintain that knowledge-how just is a kind of knowledge-that. Accordingly, reductive intellectualists must predict that the value problems facing propositional knowledge will equally apply to knowledge-how. We show, however, that this is not the case. Accordingly, we highlight a value-driven argument for thinking (contra reductive intellectualism) that knowledge-how and knowledge-that come apart. 相似文献
94.
The Academic Advantage of Devotion: Measuring Variation in the Value of Weekly Worship in Late Adolescence on Educational Attainment Using Propensity Score Matching 下载免费PDF全文
Jeannie Kim 《Journal for the scientific study of religion》2015,54(3):555-574
This study measures the effect of regular worship attendance at age 17 on total years of schooling by age 25, using data from the National Longitudinal Survey of Youth 1997. Expanding on previous work, this study estimates differences in the impact of worship attendance by race and family income status using propensity score matching. Individuals who frequently attend religious services complete .69 more years of schooling than similar individuals who do not frequently attend services. There are significantly greater returns to attendance for low‐income youth and no significant difference in returns by religious affiliation. These findings suggest that religious observance provides greater benefits for low‐income individuals or perhaps provides resources high‐income individuals have access to elsewhere. Moreover, this study extends previous work by examining a more recent and nationally representative sample of youth and by using methods that allow for greater causal inference. 相似文献
95.
96.
Could superior self-control explain the gender difference in reading achievement favoring girls? To test this idea, we drew on a unique population-based sample (N = 11,336) where self-control was measured in kindergarten using a multimethod battery of assessments. Girls showed substantially higher levels of self-control in kindergarten (β = 0.47) and outperformed boys on standardized tests of reading achievement in third/fourth grade (β = 0.20). Further, kindergarten self-control prospectively predicted reading achievement throughout elementary school (β = 0.37). Connecting these findings, our mediation analyses revealed that the female self-control advantage in kindergarten could account for subsequent gender differences in reading achievement. Our results suggest that early gender differences in self-control may represent a key pathway through which gender disparities in reading skills, vocabulary knowledge, and reading comprehension occur. 相似文献
97.
发表《科学引文索引》 (science citation index, SCI) 论文的多少和论文被引用率的高低, 是国际上通用的评价基础研究成果水平的标准。引进SCI的概念, 对促进我国的科研评价标准化和国际化发挥了积极作用。SCI目前已经成为我国评价科研成果的重要指标, 某些地方甚至成为唯一指标。但SCI主要侧重在基础学科领域的评价, 不能涵盖全面的科技评价。在肯定SCI对规范我国科研的评价体系的积极作用的同时, 对其负面影响也不能忽视。以上海中医药大学为例, 通过介绍SCI和国内SCI论文发表的现状, 对正确认识和全面评价SCI的作用提出建议。 相似文献
98.
酒曲初始应用为酿酒,后我国先民发现酒曲可以用于治疗疾病便将其纳入方剂之中,方剂中的酒曲又逐渐演化成专供药用的药用曲。药用曲在我国古代各个时期具有鲜明的特征,在曲类药物的溯源研究中具有导向性作用。至1956年,《中药成药配制经验介绍》正式提出“曲剂”的名词概念和相关标准,药用曲的完整内涵得以呈现。随着传统中医与西方现代医学的交流与融合,药用曲的工艺科学价值、医药文化价值和学术启示价值得以重塑,其当代价值和实用意义进一步被明确。药用曲的发展历史折射出了我国酒曲药用的深厚认知观念和文化内涵。
相似文献99.
《British journal of psychology (London, England : 1953)》2017,108(1):107-126
Researchers have spent considerable effort examining unrealistic absolute optimism and unrealistic comparative optimism, yet there is a lack of research exploring them concurrently. This longitudinal study repeatedly assessed unrealistic absolute and comparative optimism within a performance context over several months to identify the degree to which they shift as a function of proximity to performance and performance feedback, their associations with global individual difference and event‐specific factors, and their link to subsequent behavioural outcomes. Results showed similar shifts in unrealistic absolute and comparative optimism based on proximity to performance and performance feedback. Moreover, increases in both types of unrealistic optimism were associated with better subsequent performance beyond the effect of prior performance. However, several differences were found between the two forms of unrealistic optimism in their associations with global individual difference factors and event‐specific factors, highlighting the distinctiveness of the two constructs. 相似文献
100.