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以144名大学生为被试,使用关系复杂性变化的三种虚拟外星生物实验材料,创设功能预测任务和自由分类、限定分类任务,探查关系复杂性和分类方式对个人关系类别间接性学习的影响.结果发现:(1)随着关系复杂性的增高,各学习阶段下,三种学习材料功能预测成绩彼此间均无显著差异;(2)关系复杂性和分类方式对个人关系类别间接性学习的分类结果存在交互影响作用,具体表现为,关系复杂性较低时自由分类和限定分类结果的杰卡德相似性无显著差异,关系复杂性较高和高时限定分类极其显著高于自由分类,自由分类方式下,关系复杂性不同的三种学习材料间差异不显著,限定分类方式下,关系复杂性较高和高两种学习材料分类结果的杰卡德相似性间无显著差异,但均极其显著高于关系复杂性较低的学习材料. 相似文献
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Social Media as Social Capital of LGB Individuals in Hong Kong: Its Relations with Group Membership,Stigma, and Mental Well‐Being 下载免费PDF全文
Eddie S. K. Chong Yin Zhang Winnie W. S. Mak Ingrid H. Y. Pang 《American journal of community psychology》2015,55(1-2):228-238
Social media are found to facilitate social information exchange among lesbian, gay, and bisexual (LGB) individuals who are subjected to social stigma. This study tested the protective role of LGB‐tailored social media uses and gratifications in promoting LGB group membership, which we hypothesized to reduce LGB stigma and enhance mental health among LGB individuals in Hong Kong. Based on a sample of 233 Chinese LGB individuals in Hong Kong, structural equation modeling showed evidence for our hypotheses, χ(df=62)2 = 88.20, GFI = 0.95, CFI = 0.98, NNFI = 0.98, SRMR = 0.07, RMSEA = 0.04. Community surveillance, identity expression, and emotional support on social media may promote mental health by instilling a sense of group membership and reducing stigma. Social media may build camaraderie and bolster resilience among LGB individuals that may otherwise be difficult in conservative regions. 相似文献
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Masahiko Nishijima Makoto Matsuura Yan Zhang Akihiro Makino 《Philosophical Magazine Letters》2015,95(5):277-284
Microstructure of a nanocrystalline soft magnetic Fe85Si2B8P4Cu1 alloy (NANOMET®) was investigated by the state of the art spherical aberration-corrected TEM/STEM. Observation by TEM shows that the microstructure of NANOMET® heat treated at 738 K for 600 s which exhibits the optimum soft magnetic properties has homogeneously distributed bcc-Fe nanocrystallites with the average grain size of 30 nm embedded in an amorphous matrix. Elemental mappings indicate that P is excluded from bcc-Fe grains and enriched outside the grains, which causes to retard the grain growth of bcc-Fe crystallites. The aberration-corrected STEM-EDS analysis with the ultrafine electron probe successfully proved that Cu atoms form nanometre scale clusters inside and/or outside the bcc-Fe nanocrystallites. 相似文献
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The plastic stability of bimetals composed of a Ti-based metallic glass composite (MGC) and a pure titanium (PT) under tension has been investigated. The results reveal that the plastic stability of the MGC/PT bimetal is strongly dependent on the thickness fraction of the MGC: when the thickness fraction of the MGC decreases to a critical value, a homogeneous plastic deformation occurs in the MGC/PT bimetals, i.e. the strain localization and necking of the MGC is effectively suppressed. This unique phenomenon is explained using the normalized strain-hardening rate, and the quantitative relationship between the normalized strain-hardening rate of the MGC/PT bimetals and the thickness fraction of the MGC is thereby established. 相似文献
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