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中药正性影响骨髓间充质干细胞成骨分化及机制的进展 被引量:4
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作者 张昕 李玛琳 《云南中医学院学报》 2013年第3期91-94,98,共5页
骨髓间充质干细胞(Bone marrow mesenchymal stem cells,BMSCs)具有多能分化能力,并具有易于获得、低免疫排斥性等特点,现今已成为研究热点之一,其已在中药研究中有广泛应用,尤其是在促其成骨相关研究中,中药可有效促进BMSCs成骨,提高... 骨髓间充质干细胞(Bone marrow mesenchymal stem cells,BMSCs)具有多能分化能力,并具有易于获得、低免疫排斥性等特点,现今已成为研究热点之一,其已在中药研究中有广泛应用,尤其是在促其成骨相关研究中,中药可有效促进BMSCs成骨,提高碱性磷酸酶、骨钙素等成骨标志因子的表达,同时研究者对中药促成骨机制也有深入研究。本文就中药正性影响BMSCs成骨分化的研究进行总结。 展开更多
关键词 中药 骨髓间充质干细胞 成骨分化 正性影响 机制 进展
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网络对沟通行为的正性影响 被引量:2
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作者 巩毅梅 易飞燕 陈睿 《科技经济市场》 2006年第10期35-,共1页
本文从沟通的人际交往功能出发,论证了网络作为新型的沟通渠道所具有的隐秘性,包容性、补偿性、时空便捷性迎合了现代人的交往需要,有利于人们在交往中的心理保健、归属感、成就感以及扩大了沟通的范围、提高了群体沟通的效率,这些网络... 本文从沟通的人际交往功能出发,论证了网络作为新型的沟通渠道所具有的隐秘性,包容性、补偿性、时空便捷性迎合了现代人的交往需要,有利于人们在交往中的心理保健、归属感、成就感以及扩大了沟通的范围、提高了群体沟通的效率,这些网络对沟通行为的正性影响使得网络沟通作为一种新型沟通方式显示出极强的生命力。 展开更多
关键词 沟通行为 人际交往功能 网络 正性影响
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健康教育对出院精神分裂症患者的正性影响作用 被引量:1
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作者 肖卫兵 马昌明 +3 位作者 邓圆花 刘梅华 章秋明 刘萍华 《当代医学》 2018年第9期118-119,共2页
目的探究健康教育对出院精神分裂患者所产生的正性影响作用。方法选择本院中2015年1月~2016年3月间收治的精神分裂患者40例作为研究对象,按照患者的入院顺序将其分为对照组和实验组,每组20例;对照组患者在治疗完成出院后,采用常规电话... 目的探究健康教育对出院精神分裂患者所产生的正性影响作用。方法选择本院中2015年1月~2016年3月间收治的精神分裂患者40例作为研究对象,按照患者的入院顺序将其分为对照组和实验组,每组20例;对照组患者在治疗完成出院后,采用常规电话随访方式;实验组患者出院后由护理人员与患者社区联合开展健康教育,对比两组患者的用药依从性以及疾病知识了解度,并统计两组患者的生活习惯改善状况,比较结果。结果结果显示,患者出院半年后,对照组中有9例患者坚持用药,而实验组中有17例患者坚持用药,实验组患者的用药依从性明显优于对照组,并且实验组患者的疾病知识评分较高。实验组中每天运动达标、参与社会活动、拥有良好人际交往患者数较对照组更多;差异有统计学意义(P<0.05)。结论采用健康教育对出院精神分裂症患者进行跟踪随访,能够有效提高患者的用药依从性,并且提高患者对精神分裂症的了解程度,降低了疾病的复发率,提高患者的生活习惯,使患者能够更好的适应社会,从而起到较高治愈的效果。 展开更多
关键词 健康教育 出院精神分裂症 正性影响 社区护理 知识宣教
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Effect of inlet temperature and equivalence ratio on HCCI engine performance fuelled with ethanol:Numerical investigation 被引量:2
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作者 Alireza Rahbari 《Journal of Central South University》 SCIE EI CAS CSCD 2016年第1期122-129,共8页
A numerical model is presented to investigate the performance of homogeneous charge compression ignition(HCCI) engines fueled with ethanol. Two approaches are studied. On one hand, two-step reaction mechanisms with Ar... A numerical model is presented to investigate the performance of homogeneous charge compression ignition(HCCI) engines fueled with ethanol. Two approaches are studied. On one hand, two-step reaction mechanisms with Arrhenius reaction rates are implemented in combustion chemistry modeling. On the other hand, a reduced mechanism containing important reactions of ethanol involving heat release rate and reaction rates compatible with experimental data is employed. Since controls of combustion phenomenon and ignition timing are the main issues of these engines, the effects of inlet temperature and equivalence ratio as the controlling factors on the operating parameters such as ignition timing, burn duration, in-cylinder temperature and pressure of HCCI engines are explored. The results show that the maximum predicted pressures for thermodynamic model are about 71.3×10~5 Pa and 79.79×10~5 Pa, and for chemical kinetic model, they are about 71.48×10~5 Pa and 78.123×10~5 Pa, fairly comparable with corresponding experimental values of 72×10~5 Pa and 78.7×10~5 Pa. It is observed that increasing the initial temperature advances the ignition timing, decreases the burn duration and increases the peak temperature and pressure. Moreover, the maximum temperature and pressure are associated with richer mixtures. 展开更多
关键词 HCCI engine ETHANOL two-step reaction mechanism model chemical kinetic model
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Political Connection, the Nature of Property Rights, and Enterprise M&A Performance——Empirical Study based on the Panel Data of Listed Companies
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作者 Wenping YE Xianhui KUANG 《International Journal of Technology Management》 2014年第5期29-32,共4页
Mergers and acquisitions (M&A) are the important methods to quickly acquire external resources, achieve the economies of scale and the economies of scope, improve market share, and expand the scale of enterprise, w... Mergers and acquisitions (M&A) are the important methods to quickly acquire external resources, achieve the economies of scale and the economies of scope, improve market share, and expand the scale of enterprise, while M&A performance is an important index to measure if enterprise M&A is successful. In this paper, the influence of entrepreneurs' political connection on the M&A driving factors and M&A efficiency of the enterprises with different property rights are analyzed using 357 mergers and acquisitions of China' s 189 listed companies in 2005-2011 as samples based on the distinction between political connection and the nature of enterprise property rights. The results show that the political connection plays a very significant positive influence on the M&A performances of the central state-owned enterprises and private enterprises, but exerts a very significant negative influence on the local state-owned enterprises; the intensity of entrepreneurs' political connection also plays a certain influence on enterprise merger and acquisition, and the central political connection and the local political connection are significantly different in the influence on the enterprise M&A performance. 展开更多
关键词 Political Connection the Nature of Property Rights M&A Performance
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Research on English Majors' Willingness to Communicate Inside Classroom
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作者 LIU Jing 《Sino-US English Teaching》 2013年第8期615-620,共6页
As a new affective variable in the field of L2 (Second Language) Acquisition, the study of WTC (Willingness to Communicate) has attracted widespread attention since the 1990s, which is not only an effective way to... As a new affective variable in the field of L2 (Second Language) Acquisition, the study of WTC (Willingness to Communicate) has attracted widespread attention since the 1990s, which is not only an effective way to promote language learning but also an important language target itself. Based on the data got from the questionnaire, the present study intends to explore the level, gender difference, correlation with academic .performance, and influencing factors of English majors' WTC inside classroom using both quantitative and qualitative research method. The results reveal that English majors' WTC inside classroom is comparatively high; there is no significant gender difference in English majors' WTC inside classroom, and there is significant positive correlation between WTC inside classroom and academic achievement; furthermore, language capacity, language anxiety, and communicative atmosphere are the main influencing factors 展开更多
关键词 WTC (Willingness to Communicate) inside classroom gender differences correlation analysis influencing factors
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