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81.
Polypropylene (PP)/multi-wall carbon nanotube (MWCNT) nanocomposites were prepared via a melt compounding method using a twin-screw extruder. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used to study the crystallization and thermal stability of the nanocomposites. The DSC analysis results revealed that the existence of MWCNTs in a PP matrix, which acted as a nucleating agent enhancing the crystallization process of PP matrix. This behaviour was manifested by an increase in the crystallization temperature and crystallinity index of the nanocomposites. Additionally, the TGA results showed that the addition of MWCNTs dramatically increased the thermal stability of the PP/MWCNT nanocomposites. Generally, MWCNT type C-70P showed improved crystallization and better thermal stability of the nanocomposites compared to type C-150P. 相似文献
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不同认知方式与标记利用意向对文章标记效应的影响 总被引:8,自引:1,他引:7
本文探讨读者不同认知方式与标记利用意向对文章标记效应影响的实验。实验以初中二年级学生为被试。结果表明 ,文章标记利用的意向对场独立和场依存被试文章信息的保持都有显著的促进作用 ;文章宏观标记与读者的认知方式有显著的交互作用 ,在有文章宏观标记条件下 ,场独立被试与场依存被试之间无显著差异 ,在无宏观标记条件下 ,场独立被试显著优于场依存被试 相似文献
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Samuel O. Salami 《International journal of psychology》2019,54(1):70-79
This study investigated the relationship of family environment, network, parental socio‐economic status, self‐efficacy and proactive personality on entrepreneurial intention of secondary school adolescents and the mediating role of self‐efficacy. The participants were 250 secondary school SS2 adolescents randomly selected from six secondary schools in Ibadan Metropolis, Ibadan, Oyo State, Nigeria. Structural Equation Modelling was used to analyse the data obtained from the participants. The results showed that all the contextual and individual factors had significant relationship with entrepreneurial intention and self‐efficacy partially mediated the relationship. It was suggested that counselling psychologists should consider the contextual and individual variables while assisting students in building their entrepreneurial intention. 相似文献
86.
Maiya Jordan 《Ratio》2019,32(2):122-130
According to doxastic accounts of self‐deception, self‐deception that P yields belief that P. For doxastic accounts, the self‐deceiver really believes what he, in self‐deception, professes to believe. I argue that doxastic accounts are contradicted by a phenomenon that often accompanies self‐deception. This phenomenon – which I term ‘secondary deception’ – consists in the self‐deceiver's defending his professed (deceit‐induced) belief to an audience by lying to that audience. I proceed to sketch an alternative, non‐doxastic account of how we should understand self‐deception in terms of the self‐deceiver's misrepresentation of himself as believing that P. 相似文献
87.
Drawing on appraisal theories of discrete emotions, we propose and test a model in which abusive supervision directed toward oneself and toward work unit peers (coworker abusive supervision) are interactively related to generalized feelings of shame, anger, and fear. These discrete emotions, in turn, tend to precipitate distinct responses that do not directly target the supervisor. We tested our hypotheses with a three-wave, time-lagged survey of 285 full-time workers from 55 work units. Consistent with our theorizing, supervisory abuse was associated with stronger feelings of shame while at work when the abusive supervision reported by one's coworkers was lower (vs. higher), whereas abuse had a stronger association with anger when coworkers also perceived relatively high levels of abuse. The distinct action tendencies associated with shame and anger are related to employees engaging in less voice behavior and more interpersonal deviance, respectively, and fear is related to higher turnover intentions. We discuss the study's implications for theory development concerning abusive supervision. 相似文献
88.
Lucy Campbell 《Canadian journal of philosophy》2019,49(2):230-252
A widespread view in the philosophy of mind and action holds that intentions are propositional attitudes. Call this view ‘Propositionalism about Intention’. The key alternative holds that intentions have acts, or do-ables, as their contents. Propositionalism is typically accepted by default, rather than argued for in any detail. By appealing to a key metaphysical constraint on any account of intention, I argue that on the contrary, it is the Do-ables View which deserves the status of the default position, and Propositionalism which bears the burden of proof. I go on to show that this burden has not been met in the literature. 相似文献
89.
H. Y. Wu Y. H. Chen P. F. Yin Z. R. Zhang X. Y. Han X. Y. Li 《Philosophical Magazine Letters》2019,99(1):29-38
The effects of pressure on the mechanical and dynamical stability of NaAlSi have been fully investigated by first-principles calculations within the generalised gradient approximation (GGA). The obtained results show that the optimised lattice constants, atomic positions and elastic constants at ambient pressure are in good agreement with the available experimental and theoretical data. The lattice constants decrease monotonically with increasing pressure. The elastic constant C11, C12, C13, C33 and C66 increase while C44 decreases with increasing pressure. It is found that NaAlSi is mechanically unstable when the pressure is above 25.97?GPa. The phonon-dispersion curves along several high symmetry lines are obtained. The phonon frequencies at the Z point decrease with increasing pressure and completely soften to zero at 27.52?GPa, further confirming the structural instability of NaAlSi. 相似文献
90.
Hye-eun Kwak Joon-ho Kim Sun-young Kim Ju-eee Jung 《Journal of Psychology in Africa》2019,29(3):230-236
We examined to what extent viewing the Korean dance performance by Beyond The Scene (BTS) at the 2018 Melon Music Awards influenced global viewers’ purchase of Korean cultural products and tourism behaviour intention. We surveyed 230 prospective tourists from the USA (black adult females = 50%; mean age = 34.9, SD = 1.116) in terms of their preference for Korean cultural products and intention to visit Korea. We conducted structural equation modelling to map the paths among cultural product preferences and tourism intentions. We found that viewing the Korean dance performance by BTS not only increased the purchase of Korean cultural products among participants, but also their tourism behaviour intention. We also found that the purchase of Korean cultural products by participants was associated with increased Korea tourism behaviour intention. We conclude from these data that viewing cultural performances by would-be tourists and their purchase preferences are important for promoting tourism through cultural industries. 相似文献