全文获取类型
收费全文 | 170篇 |
免费 | 19篇 |
国内免费 | 29篇 |
专业分类
218篇 |
出版年
2023年 | 3篇 |
2022年 | 4篇 |
2021年 | 8篇 |
2020年 | 4篇 |
2019年 | 7篇 |
2018年 | 7篇 |
2017年 | 8篇 |
2016年 | 6篇 |
2015年 | 4篇 |
2014年 | 6篇 |
2013年 | 14篇 |
2012年 | 5篇 |
2011年 | 15篇 |
2010年 | 21篇 |
2009年 | 9篇 |
2008年 | 16篇 |
2007年 | 20篇 |
2006年 | 14篇 |
2005年 | 11篇 |
2004年 | 11篇 |
2003年 | 4篇 |
2002年 | 4篇 |
2001年 | 2篇 |
2000年 | 2篇 |
1999年 | 2篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1996年 | 2篇 |
1995年 | 2篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1990年 | 1篇 |
排序方式: 共有218条查询结果,搜索用时 0 毫秒
61.
62.
The current study developed a psychometrically sound multidimensional measure of Internet addiction: the Chinese Internet Addiction Inventory (CIAI). Data were collected from 1,029 Chinese undergraduate students from 14 universities and colleges. The initial sample was split randomly into two samples (N1=516; N2=513). An exploratory factor analysis (EFA) and a confirmatory factor analysis (CFA) were conducted on the two samples respectively. Findings from the EFA suggest that this measure assesses three dimensions of Internet addiction: conflicts, mood modification, and dependence. Items in each dimension showed high internal consistency and acceptable test-retest reliability. Findings from the CFA further confirmed the three-factor measurement structure of CIAI. Test of criterion-related validity also showed good abilities for all three CIAI subscales to discriminate between an Internet addictive group and non-Internet addictive group. The theoretical and clinical implications of CIAI and its limitations are discussed. 相似文献
63.
64.
Chuanjun Li Rui Guo Zhaojing Yuan Weidong Xuan Zhongming Ren Yunbo Zhong 《Philosophical Magazine Letters》2015,95(1):37-43
The nucleation undercoolings of non-magnetic metals like paramagnetic aluminium in high magnetic fields were measured by the differential thermal analysis technique. It was shown that the nucleation undercooling of pure aluminium increased with increasing the magnetic field, while its melting temperature was hardly changed. Based on the model of magnetic dipoles at the interface, it is proposed that the magnetic-field-induced interfacial energy mainly contributes to the increase in undercooling. The change in undercooling in the magnetic field is calculated theoretically, which is in comparison with experimental data. Additionally, the inhibition of atom diffusion in the magnetic field plays a role in the change of undercooling. 相似文献
65.
重大传染病疫情应对可能出现公共利益挤压个人权利的问题,但这种非常态下的权宜之策对阻断病毒传播至关重要,经得起合法性考验。为有效控制重大传染病疫情蔓延,每个人都要承担协调好与他人、与社会的关系,适度让渡个人权利、参与疫情防控、平等对待患者和高风险地区同胞、合理约束自己需求等伦理责任。相关职能部门应当通过完善法律法规、引导树立共同体意识、制定伦理指南、加强沟通解释等方式确保个人的伦理责任落实到位。
相似文献66.
67.
张忠 《医学与哲学(人文社会医学版)》2023,44(23):44-49
基于文献分析的方法,梳理经典焦虑理论的演变历程,揭示焦虑的本质与根源,澄清社会焦虑的主体与性质,界定社会焦虑的概念内涵。同时结合概念界定对当代中国社会焦虑的根源做进一步的探究,认为主要原因在于:欲求向需求的快速转变,阶层流动的固化趋势,以及价值观的拮抗与迷失。最后提出社会焦虑的纾解之道,即充分发挥个人的建设性力量,积极应对时代挑战;坚持以人民为中心,全面推进公正与健康社会建设。
相似文献68.
69.
This study examined the relative importance of contest experience and size differences to behavioral decisions over the course of contests. Using a mangrove rivulus fish, Kryptolebias marmoratus, we showed that although contest experience and size differences jointly determined contest outcomes, they affected contestants’ interactions at different stages of contests. Contest experience affected behavioral decisions at earlier stages of contests, including the tendency and latency to launch attacks, the tendency to escalate contests into mutual attacks and the outcome of non-escalated contests. Once contests were escalated into mutual attacks, the degree of size difference affected the fish’s persistence in escalation and chance of winning, but contest experience did not. These results support the hypothesis that contest experience modifies individuals’ estimation of their fighting ability rather than their actual strength. Furthermore, (1) in contests between two naïve contestants, more than 60 % of fish that were 2–3 mm smaller than their opponent escalated the contest to physical fights, even though their larger opponents eventually won 92 % of escalated fights and (2) fish with a losing experience were very likely to retreat in the face of an opponent 2–3 mm smaller than them without escalating. The result that a 2–3 mm size advantage could not offset the influence of a losing experience on the tendency to escalate suggests that, as well as depending on body size, the fish’s physical strength is influenced by other factors which require further investigation. 相似文献
70.
Is the Lateralized Categorical Perception of Color a Situational Effect of Language on Color Perception? 下载免费PDF全文
This study investigated whether and how a person's varied series of lexical categories corresponding to different discriminatory characteristics of the same colors affect his or her perception of colors. In three experiments, Chinese participants were primed to categorize four graduated colors—specifically dark green, light green, light blue, and dark blue—into green and blue; light color and dark color; and dark green, light green, light blue, and dark blue. The participants were then required to complete a visual search task. Reaction times in the visual search task indicated that different lateralized categorical perceptions (CPs) of color corresponded to the various priming situations. These results suggest that all of the lexical categories corresponding to different discriminatory characteristics of the same colors can influence people's perceptions of colors and that color perceptions can be influenced differently by distinct types of lexical categories depending on the context. 相似文献