全文获取类型
收费全文 | 281篇 |
免费 | 16篇 |
出版年
2024年 | 1篇 |
2023年 | 1篇 |
2022年 | 5篇 |
2021年 | 4篇 |
2020年 | 11篇 |
2019年 | 17篇 |
2018年 | 8篇 |
2017年 | 8篇 |
2016年 | 17篇 |
2015年 | 10篇 |
2014年 | 7篇 |
2013年 | 38篇 |
2012年 | 23篇 |
2011年 | 24篇 |
2010年 | 9篇 |
2009年 | 13篇 |
2008年 | 9篇 |
2007年 | 14篇 |
2006年 | 9篇 |
2005年 | 7篇 |
2004年 | 3篇 |
2003年 | 3篇 |
2002年 | 5篇 |
2001年 | 7篇 |
2000年 | 3篇 |
1998年 | 5篇 |
1995年 | 3篇 |
1994年 | 1篇 |
1993年 | 2篇 |
1991年 | 1篇 |
1990年 | 5篇 |
1989年 | 2篇 |
1988年 | 2篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1984年 | 1篇 |
1982年 | 1篇 |
1978年 | 1篇 |
1976年 | 3篇 |
1974年 | 1篇 |
1968年 | 1篇 |
1967年 | 4篇 |
1966年 | 1篇 |
1965年 | 1篇 |
1959年 | 1篇 |
1956年 | 2篇 |
排序方式: 共有297条查询结果,搜索用时 197 毫秒
251.
The purpose of this study was to examine the determinants of adolescents’ software piracy over time and discover gender differences based on Self-Control and Problem Behavior theories. Using the Korean Youth Panel Survey data, both random and fixed effects models were estimated although this study focused on within effects. Findings showed that increases in problematic off-line behavior, psychological health problems, and time spent on computers, as well as decrease in self-control, increased the likelihood of computer piracy among Korean adolescents. Additional analyses identified gender differences. Implications for policy and future research as well as limitations are discussed. 相似文献
252.
253.
254.
Hwang Woosang Jung Eunjoo Fu Xiaoyu Zhang Yue Ko Kwangman Lee Sun-A Lee Youn Mi Lee Soyoung You Hyun-Kyung Kang Youngjin 《Journal of child and family studies》2022,31(4):1030-1044
Journal of Child and Family Studies - Helicopter parenting has emerged as a prevalent phenomenon in families with adult children. Due to its developmentally inappropriate nature, helicopter... 相似文献
255.
Cognitive Processing - People’s attention is well attracted to a stimulus matching their memory. For example, when people are required to remember the color of a visual object, stimuli... 相似文献
256.
The identical elements (IE) model (Rickard, Healy, & Bourne, Learning, Memory, and Cognition 32:734–748, 1994) of fact representation predicts that, in both verbal and numerical domains, performance gains with retrieval practice on
multielement items will be specific to the practiced stimulus–response combinations, failing to transfer even to altered stimulus–response
mappings of practiced items. In the case of arithmetic, the model predicts no transfer across either complementary operations
(e.g., 4 × 7 to 28 / 4) or complementary division or subtraction problems (e.g., 28 / 4 to 28 / 7). Although that model has
successfully described transfer effects in the domains of multiplication–division and episodic cued recall, it is challenged
by a recent demonstration of positive cross-operation transfer for addition and subtraction (Campbell & Agnew, Psychonomic
Bulletin & Review 16:938–944, 2009). We report results of a new addition–subtraction transfer experiment, the design of which closely matched that of a prior
multiplication–division experiment that supported the model. The transfer results were consistent with the IE model. A two-component
model of memory retrieval practice effects is proposed to account for the discrepant experimental results for addition and
subtraction and to guide future work. 相似文献
257.
Substantial evidence suggests that impairment of the hypothalamus?pituitary system can occur following an aneurysmal subarachnoid hemorrhage (aSAH). Given that the diurnal cortisol rhythm is primarily controlled by the hypothalamus?pituitary system, this study examined whether changes in diurnal cortisol rhythm occurred after aSAH. Cortisol concentrations were measured in the saliva samples collected from patients after aSAH and other types of cerebral hemorrhage (non-aSAH) in the post-awakening period and at night (21:00?h), and the cortisol awakening response (CAR) and diurnal cortisol decline were determined. The area under the cortisol curve from immediately after to 45?min after awakening (CARauc) in the aSAH patient group was comparable to that in the non-aSAH or healthy control groups. However, an obvious cortisol peak was not found after the awakening period, and the morning/nighttime cortisol ratio in the aSAH patient group was significantly lower than that in other examined groups due to higher nighttime cortisol concentrations. In aSAH patients, the CARauc and nighttime cortisol concentrations were negatively correlated with the Fisher CT grade. These results indicate that the diurnal cortisol rhythm is not regulated normally after aSAH, and cortisol secretory activity decreases as the volume of subarachnoid bleeding increases. Our findings will be helpful to understand altered hypothalamus?pituitary?adrenal axis function after aSAH. 相似文献
258.
Deaf college students seem to have relatively stronger associations from words for taxonomic categories of basic (e.g., snake) to those of super-ordinate (e.g., reptiles) level than vice versa compared with hearing students in word association (Marschark, Convertino, McEvoy & Masteller, 2004). In deciding whether two sequentially presented words for taxonomic categories of different levels are conceptually related, deaf adolescents might therefore have a poorer performance when they see a category name before than when they see it after one of the corresponding exemplar words. Deaf Korean adolescents were found to recognize words for taxonomic categories of super-ordinate level with lower efficiencies than those of basic level. Their accuracy seemed to reflect a reversed typicality effect when they decided that first-presented words for taxonomic categories of basic level were conceptually related to second-presented words for those of super-ordinate level. It was argued that deaf Korean adolescents went through a temporary stage of having iconic representations of several exemplars of the category aroused in working memory before the abstract semantic representation was fully activated when they saw the word for a taxonomic category of super-ordinate level. 相似文献
259.
260.