Simman模拟人在心肺复苏临床技能教学中的调查研究

目的:探讨Simman模拟人在心肺复苏技能教学中的应用效果。方法:60名临床医学专业学生参加CPR操作培训,实际操作练习,并对所有学生进行匿名问卷调查,分析Simman模拟人系统在心肺复苏技能教学中的应用效果。结果:90%以上的学生认为Simman模拟人模拟真实,重复性强,89%的学生认为Simman模拟人能充分调动学习积极性,88%的学生认为Simman模拟人操作性强,非常认同Simman模拟人出科考核模式。95%的学生认为Simman模拟人能够全面考核学生的临床思维,91%的学生认为Simman模拟人能够进一步巩固和提高学生的理论知识。结论:Simman模拟人系统在心肺复苏技能实践教学中能明显提高临床技能教学的质量。     

高职院校学生道德认知规律及应用路径管窥

党的十八大以来,以习近平同志为核心的党中央高度重视公民道德建设。《新时代公民道德建设实施纲要》指出:“学校是公民道德建设的重要阵地。”高职院校不是与世隔绝的象牙塔,社会道德领域中出现的问题在高职院校有着不同程度的表现。究其原因,高职院校学生的道德认知观念出现了偏差,给不良道德思潮以可乘之机。本文从高职院校学生道德认知规律的价值入手,引起社会对道德认知规律的普遍关注;然后以上海某职业技术学院的调研为基础,管窥高职院校学生道德认知规律;最后结合高职院校特色和学生特点,提出契合学生道德认知规律的针对性应用路径。     

“双一流”背景下大学生“双创”人才培养工作机制探索

“双创”教育作为“双一流”建设人才培养的关键环节,对于提升高校人才培养质量、提升高校国内和国际地位、建设“双一流”高校具有理论指导和实践意义。本文分析了我国目前创新创业发展及普通高校“双创”教育发展现状,提出了建立符合学科特色的“双创”教育人才培养体系、开展“群众型”与“精英型”两个层次的“双创”活动、坚持研究型与应用型并重模式的人才培养工作机制。     

Paving the road toward the use of β-Fe2O3 in solar water splitting: Raman identification,phase transformation and strategies for phase stabilization

Although β-Fe₂O₃ has a high theoretical solar-to-hydrogen efficiency because of its narrow band gap, the study of β-Fe₂O₃ photoanodes for water splitting is elusive as a result of their metastable nature. Raman identification of β-Fe₂O₃ is theoretically and experimentally investigated in this study for the first time, thus clarifying the debate about its Raman spectrum in the literature. Phase transformation of β-Fe₂O₃ to α-Fe₂O₃ was found to potentially take place under laser and electron irradiation as well as annealing. Herein, phase transformation of β-Fe₂O₃ to α-Fe₂O₃ was inhibited by introduction of Zr doping, and β-Fe₂O₃ was found to withstand a higher annealing temperature without any phase transformation. The solar water splitting photocurrent of the Zr-doped β-Fe₂O₃ photoanode was increased by 500% compared to that of the pure β-Fe₂O₃ photoanode. Additionally, Zr-doped β-Fe₂O₃ exhibited very good stability during the process of solar water splitting. These results indicate that by improving its thermal stability, metastable β-Fe₂O₃ film is a promising photoanode for solar water splitting.     

Experiments on Cu-isotope fractionation between chlorine-bearing fluid and silicate magma: implications for fluid exsolution and porphyry Cu deposits

Hydrothermal fluid is essential for transporting metals in the crust and mantle. To explore the potential of Cu isotopes as a tracer of hydrothermal-fluid activity, Cu-isotope fractionation factors between Cl-bearing aqueous fluids and silicate magmas (andesite, dacite, rhyolite dacite, rhyolite and haplogranite) were experimentally calibrated. Fluids containing 1.75–14 wt.% Cl were mixed together with rock powders in Au₉₅Cu₅ alloy capsules, which were equilibrated in cold-seal pressure vessels for 5–13 days at 800–850°C and 2 kbar. The elemental and Cu-isotopic compositions of the recovered aqueous fluid and solid phases were analyzed by (LA-) ICP–MS and multi-collector inductively coupled plasma mass spectrometry, respectively. Our experimental results show that the fluid phases are consistently enriched in heavy Cu isotope (⁶⁵Cu) relative to the coexisting silicates. The Cu-isotope fractionation factor (Δ⁶⁵Cu_FLUID-MELT) ranges from 0.08 ± 0.01‰ to 0.69 ± 0.02‰. The experimental results show that the Cu-isotopic fractionation factors between aqueous fluids and silicates strongly depend on the Cu speciation in the fluids (e.g. CuCl(H₂O), CuCl₂^– and CuCl₃²⁻) and silicate melts (CuO_1/2), suggesting that the exsolved fluids may have higher δ⁶⁵Cu than the residual magmas. Our results suggest the elevated δ⁶⁵Cu values in Cu-enriched rocks could be produced by addition of aqueous fluids exsolved from magmas. Together with previous studies on Cu isotopes in the brine and vapor phases of porphyry deposits, our results are helpful for better understanding Cu-mineralization processes.     

漫话藏书票

藏书票是表明藏书持有者的标志,是人们读书、爱书、藏书的信物,它既有装饰图书的实用功能,又有艺术欣赏价值、历史研究价值。介绍了藏书票的形制、内容及在我国的传播。     

北京民办高校发展的现状与特点

本文对目前北京民办高校发展的数量与规模进行了介绍,并对其发展特点、作用、基本经验及改革措施等几个方面进行了分析。     

数字信号处理教学改革与实践探索

本文结合“数字信号处理”这门课程的特点,为使传统的课堂型教学逐渐过渡到探索型教学,从教学内容、教学方法以及教学实践等方面进行了实践和探讨。     

壶关地区的『祭星』习俗

春节是我国最重要的岁时节日之一。春节期间,各地有不同的民俗活动。在笔者生活的晋东南壶关地区的农村,每年正月初八,家庭主妇都要在自家庭院举行“祭星”仪式。有关这一习俗,清潘荣陛的《帝京岁时纪胜》记载。