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631.
Zheng Liu Tetsu Ohsuna Kenji Hiraga Masahiro Tobise 《Philosophical Magazine Letters》2013,93(9):729-734
In the course of a study on microstructural changes in Sm2Fe17 during a hydrogenation-disproportionation-desorption-recombination process, a peculiar microstructure has been observed just after the hydrogenation-disproportionation processing. SmH2 crystals, formed as a result of decomposition of the Sm2Fe17 compound, are present with a fibrous shape, about 7 nm in diameter and 1 mum in length. These SmH2 fibres, all with the same orientation, are arranged at nearly regular intervals of about 11nm and with a definite orientation relationship to the alpha-Fe matrix, <110> Fe// <110> SmH2. 相似文献
632.
H. Wei J.J. Liang P. Peng Q. Zheng X.F. Sun B.Z. Sun 《Philosophical Magazine Letters》2013,93(5):299-311
The valence band structures of the NiAl–Mo alloy was investigated by photoelectron spectroscopy. The valence band spectra of the NiAl–Mo alloy was shifted away from the Fermi level so that the Ni-d-band centroid moved to a higher energy by 0.22 eV as Mo was added. A possible explanation lied in the overlap of Ni-d bands in the energy with Mo-d and Al-p bands. The participation of Mo-d bands was correlated with the site preference of Mo in NiAl alloys. 相似文献
633.
Judith S. Brook Lu Zheng Martin Whiteman David W. Brook 《The Journal of genetic psychology》2013,174(2):228-241
This study examined the relation among parenting factors, marital relations, and toddler aggression. A structured questionnaire was administered to both parents of 254 2-year-olds. The authors used correlation and hierarchical multiple regression analyses to assess the extent to which certain personality traits, drug use, parenting style, and marital conflicts were related to the toddlers' aggressive behavior. Results showed that the maternal child-rearing and parental aggression domains had a direct effect on toddler aggression. The domain of maternal child rearing also served as a mediator for the domains of marital relations, paternal child rearing, parental aggression, and parental drug use. The findings indicated that maternal child-rearing practices, personality attributes, and drug use were more important than paternal attributes in relation to toddler aggression. Implications for prevention among families at risk are discussed. 相似文献
634.
Although previous research suggests that mood can influence creativity, the controversy about the effects of positive and negative moods has raged for years. This study investigated how the relationship between induced mood and creativity is moderated by dispositional and situational autonomy. It contrasted the different moderating effects of the 2 kinds of autonomy. In Experiment 1, 93 participants completed a questionnaire about dispositional autonomy and performed a creative task after watching 1 of 3 film clips, which were to induce positive, negative, or neutral moods. The results of experiment 1 indicated that positive moods prompted creativity and negative moods inhibited creativity when individuals were low in dispositional autonomy (low in autonomous orientation or high in impersonal orientation). In Experiment 2, 73 participants engaged in a game to manipulate levels of situational autonomy and induce positive or negative moods. The results of experiment 2 showed that positive moods fostered greater creativity than did negative moods when individuals were in full-autonomy condition. The different moderating effects of dispositional and situational autonomy are discussed. 相似文献
635.
The peak–end rule is used to explain how people make retrospective hedonic evaluations. This study advances our understanding of its mechanism by identifying the different effects of the rule on such evaluations over short and long retention intervals. The results of two experiments show that (i) respondents constructed their retrospective hedonic evaluations on the basis of the peak and end affects only over a short retention interval, not over a long one; and (ii) respondents relied on episodic information to construct their evaluations over a short retention interval, whereas they relied on both semantic and episodic information to construct their evaluations over a long retention interval. Our study also suggests that the “watershed” between short and long retention intervals is likely to lie between 3 and 7 weeks. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
636.
637.
为了探索集体心理干预对癌症患者应对方式的影响,本研究在90名癌症患者中随机选取46人进行干预研究。为考察干预效果,在干预后分别以医学应对方式问卷各维度因子的前测得分为协变量,以医学应对方式问卷各维度因子的后测得分为因变量,进行2(分组:实验组、对照组)×2(性别:男、女)×3(年龄:低龄组、中龄组、高龄组)的三因素协方差分析。结果表明,经过集体心理干预的实验组在应对方式各分量表上的得分要显著高于对照组,集体心理干预在性别和年龄上不存在显著差异。研究结果表明集体心理干预能够有效地改善癌症患者的应对方式。 相似文献
638.
Dynamics of the relationships among work and family resource gain and loss, work-to-family enrichment (WFE), and work-to-family conflict (WFC) over time were examined using the data collected from 382 employees of Chinese firms at two points of time one year apart. Work resource gain at time 1 weakened the positive relationship between WFC at times 1 and 2, and work resource loss at time 1 weakened the positive relationship between WFE at times 1 and 2. However, WFC at time 1 strengthened the positive relationship between work resource gain at time 1 and family resource gain at time 2. Overall, these results suggest the existence of complementary forces that maintain the status quo of individuals' work–family experiences, such that high losses diminish the transfer of gains and high gains diminish the transfer of losses, but also that unexpected gains may result from individuals having to deal with painful situations. Implications of these dynamics for theory, research, and practice are discussed. 相似文献
639.
结构方程模型拟合评鉴:整体拟合、内部拟合与复核效度检验 总被引:1,自引:0,他引:1
该文主要介绍了评价和鉴定结构方程中构建的模型与数据拟合程度的三个方面:整体拟合、内部拟合及复核效度检验.整体拟合评鉴主要是结合拟合指数,当拟合指数处于临界值时,应同时参照其他检验结果并根据模型构建的理论依据进行综合判断;内部拟合从项目质量检验、测验信度、平均变异萃取量和效度四个角度进行检验;复核效度检验在多样本分析中可分为宽松复核、温和复核和严格复核,但如果为研究样本所限,可以通过ECVI来实现. 相似文献
640.