现实与超越:论学生主体在教学中的存在

随着社会发展,人的主体与客体一致性逐渐外显,对教学主体的研究提出了新的课题。因此,如何认识学生主体在教学中的存在对学生主体的确定具有迫切的现实意义。人的主体性问题的研究,教育学逻辑起点的辨析和课程论的渐进发展,为确定学生主体在教学中的存在具有方法论指导意义。     

Verification of the stomatal conductance of Nebbiolo grapevine

Wine is one of the most important Italian export products, and Nebbiolo is one of the most respected Italian grapes. In the summer of 2007, a measurement campaign was carried out in a Nebbiolo vineyard located in Vezza d＇Alba, near Cuneo, Italy. Using a gauge of trade gases and some other instruments, we recorded the stomatal conductance and also some physiological parameters useful for estimating the dependence of stomatal conductance on environmental variables. The goal of this experiment was improving the parameterization of grapevine evapotranspiration through the assessment of the stomatal conductance and, in particular, of the functional dependence of the stomatal conductance on the following variables： the photosynthetically active radiation, the atmospheric temperature, the atmospheric moisture deficit, and the carbon dioxide concentration. The observations allowed us to check and, in some cases, to adapt the existing general parameterizations found in literature. The results showed some significant differences with the existing parameterizations concerning the atmospheric temperature, the atmospheric moisture deficit, and the carbon dioxide concentration. The parameterizations obtained in this experiment, although referring to a specific plant and site （namely the Nebbiolo at Vezza d＇Alba）, could allow assessment of the best environmental conditions under which the Nebbiolo grapevine production is the best, and in future could be tested for other grapevines or climates.     

RC消除噪声电路研究

消噪电路可分为有源和无源两种,在有源消噪电路中,突变电压经过电容输出后会趋于平缓．利用这一原理,正确选择元件组成电路,便可消除毛刺型噪声,效果良好．     

加强和改进学生党建工作研究

以我院在校生的入党教育、入党积极分子培养、党员发展和转正工作的调研数据为素材,收集各方面的意见和建议,分析学生党建工作的现状,总结学生党建工作的基本经验,得出我院学生党建工作成效的基本评价,为加强和改进学生党建工作提出建设性意见.     

Gross Anatomy Education in China during the Covid-19 Pandemic: A National Survey

The Covid-19 pandemic launched the use of online courses in Chinese medical schools during February 2020. To evaluate the state of gross anatomy education in China during the pandemic, a nationwide survey was conducted through convenience sampling by email or respondent invitations on social media. A total of 359 questionnaires were received from the respondents. The first response from a given school was included in the study to represent that school, thus, 77 questionnaires were used for analyses. Schools represented were from all provinces in mainland China as well as Hong Kong and Macao. The survey found that before the pandemic, 74.0% and 33.8% of the 77 schools conducted online theoretical and practical sessions, respectively, on gross anatomy, and 36 (46.8% of 77) had temporarily suspended practical sessions at the time the survey was conducted. Body donation programs were also affected with 26.0% and 27.3% of the 77 schools having suspended donation programs or saw a decreased number of donations. During the pandemic, 40.3% of the 77 schools kept or initiated the implementation of active learning, and online assessment was continued in 49.4% of the 77 medical schools. Another 26 (33.8%) schools initiated online assessment during the pandemic. A total of 359 answers were included for the analysis of the “teachers’ perception of the online teaching experience.” Over half (51.0%) of the 359 responded teachers were very statisfied or satisfied with the effectiveness of online teaching during the pandemic. A total of 36.2% of these respondents preferred to implement online teaching of theoretical sessions after the pandemic, and 89 (24.8%) teachers were keen to return to traditional face-to-face anatomy education.     

主动语态与被动语态的内部联系

讨论英语中主动语态与被动语态的联系,两种语态在一定条件下的相互转换以及在教学中应该注意的问题。     

一种类Lorenz系统与Lorenz系统的异结构混沌同步

用两种不同的方法──主动控制法和Lyapunov直接法,实现了一种具有极其丰富的动力学现象的类Lorenz系统和Lorenz系统的异结构同步,并且设计了不同的控制器使得响应系统与驱动系统同步,采用Matlab进行数值仿真,方法切实可行。     

电力系统谐波及滤波技术

主要针对电力系统谐波的危害及其检测分析技术,归纳总结了目前电力系统中进行谐波抑制常用的方法。     

煤制活性炭的研制及其吸附特性

研究了以烟煤为原料制备颗粒活性炭的工艺过程 ,讨论了原煤炭、活化温度、活化时间、活性炭收率等工艺条件对活性炭吸附性能的影响。实验结果表明 ,煤制活性炭的最佳工艺条件 :粒度 180目 ,筛余量小于3% ,粘结剂用量为原料粉的 30 % ,炭化温度 5 6 0℃ - 6 0 0℃ ,合适活化温度 85 0℃ - 90 0℃。文章还讨论了煤制活性炭去除水污染物的效能及机理     

主动学习与学习动机

现代教育十分强调学生以主动积极的心态投入学习对于教学活动以及学生自身发展的重要性。针对小学阶段学生学习动机发展的年龄特点，我们认为，应当将各类动机结合起来，着重培养小学生的认知内驱力，以此使学生养成主动学习的习惯。