循证医学在眼科临床实践中的应用

循证医学是在Internet蓬勃发展并极大推动社会信息化和网络化的大背景下,将临床流行病学、现代信息学与临床医学相互交叉融合的新兴边缘学科。它的出现使临床医学面临巨大的挑战,已使得行医模式由理论知识加以个人经验为指导的传统经验医学转向现代循证医学。这将是传统医学模式向循证医学模式转变的一场深刻变革,也是本世纪临床医学发展的必然趋势。     

广州医学院校中医学生与西医学生对中西医结合认识的调查报告

建国以来,我国大力致力于培养中西医结合型人材,然而到目前为止,关于中西医结合的概念在医学层面上仍达不到统一的共识,对于当今的医学生们,他们对中西医结合了解有多少,他们如何看待中西结合,中西医结合课程所起的作用有多大等等,这些都非常值得我们关注。为此,2005年6月份期间对广州市五所医学院校的学生进行了有关问卷调查。     

试论如何运用系统论原理认识细胞

运用系统论的原理分析了细胞的形态、结构与功能.细胞是生物体结构和功能的基本单位,具有多样性和统一性.细胞系统是复杂的物质系统,具有层次性、整体性、动态性及开放性等特征.应用唯物辩证法系统论的原理可以对细胞系统做出更新、更全面的诠释.     

论卫生领域中的政府角色与社会政策

从政府组织存在基本命题、社会政策变革趋势入手,深入探讨卫生领域内政府认知、政府角色、卫生政策现状及发展客观要求,提出新时期公共服务型政府能否制定并执行理性卫生政策,对管理伦理、管理机制和管理意识三方面的必要调整是关键.     

我与美国人讨论宗教、科学……

2006年6月25日至8月12日我到美国参加学术交流活动,前一阶段(6月25日至7月11日)主要参加由中国无神论学会和北美华人基督教学会联合举办的“宗教在中美文化中的作用”为题的国际学术会议;后一阶段(7月12日至8月12日)主要是参     

小学生自我调节学习的特点

本文采用学业自我调节问卷,探讨了小学四、五、六年级学生自我调节学习的特点。结果表明,不同年级小学生在自我调节学习的外部调节、摄入性调节、认同调节和内部动机维度上存在差异;不同调节类型对学习成绩有影响;不同年级、不同调节水平对数学成绩有显著影响,在语文成绩上未达显著;最后,本文对于该方向的未来研究给予了展望。     

On value and culture

Value stands for the significance of things, and concepts of value are ideas, opinions and attitudes about what kind of things are significant. Studies on the concept of value cannot be separated from culture. Every society has its own distinct culture and concept of value shared by its people. The relationship between concept of value and culture shows that the building of the concept of value must be based on culture. Developing culture, providing excellent products of culture and better humanitarian environment are the premise for people’s possession of the correct concept of value. __________ Translated from Hebei Xuekan 河北学刊 (Hebei Academic Journal), 2005 (1) by Dong Lihe     

飞行学员自我妨碍倾向与竞技应对方式研究

以206名飞行学员为被试,采用问卷法对自我妨碍倾向与竞技状态下应对方式的关系进行研究。结果表明:(1)自我妨碍倾向与想象、努力付出等积极应对方式呈负相关关系,与情绪发泄、疏远、分散注意和放弃等消极应对方式呈正相关关系。(2)低自我妨碍倾向的飞行学员更多地使用想象、努力付出和逻辑分析等积极的应对方式;高自我妨碍倾向的飞行学员更多地使用情绪发泄、疏远、分散注意和放弃等消极的应对方式。     

Influence of aging pathways on the evolution of heterogeneous solute-rich features in peak-aged Al-Mg-Si-Cu alloy with a high Mg/Si ratio

We report on a study of the influence of aging pathways on the evolution of solute-rich features in peak-aged Al-Mg-Si-Cu alloys. The concentration and partitioning ratios of Mg, Si and Cu and Mg/Si ratios in the heterogeneous solute-rich features all increase with increasing size, with Si exhibiting the highest partitioning ratio, but notably these ratios change dramatically depending on the aging pathway selected. Accordingly, the short-time age hardening response can be enhanced by promoting both homogeneous and heterogeneous precipitate nucleation, while simultaneous improvements in peak-aged strength and elongation can be attained by a vacancy-assisted aging pathway.     

Effect of heat treatment on the microstructure and mechanical properties of spray-formed 7055 aluminium alloy

7055 Al alloys samples were prepared by spray forming and hot-extrusion followed by two different aging treatment procedures. Their different distributions of GP zones, and nanoscale precipitates η′ (MgZn) and η (MgZn₂) are extensively investigated by transmission electron microscope (TEM). The mechanical properties, including tensile strength, Vickers hardness and elongation of both aged 7055 Al alloys, have also been measured and analysed. It is found that T6 and T76 aging treatment results in quite different microstructure and mechanical properties. The outstanding performance of the 7055 Al alloys after T6 aging treatment is attributed to nanoscale semi-coherent dispersion precipitates.