应用化学硕士生实验教学理念与实践

"应用化学硕士生实验"是我校自2009年起面向化学化工与生物工程一年级硕士生开设的一门选修课。实施本课程为提高硕士研究生实验能力、建设培养学生创新精神和创新能力发挥了重要作用。     

凯氏定氮法测定虾壳中氮含量

自组一套简易凯氏定氮装置,对提高装置气密性方法进行研究,并采用单次单因子法对加入双氧水测定虾壳中氮含量的消化条件进行了研究,通过与国标法进行对比,确定该方法测定虾壳中氮含量的可行性。结果表明,加氢氧化钠的漏斗采用水封能提高蒸馏装置的气密性;最佳消化条件为:虾壳0.2 g,五水硫酸铜0.2 g,硫酸钾0.6 g,浓硫酸8 mL,双氧水4 mL,消化40 min。所测虾壳氮含量为(63.48±0.88)mg/g(P=0.95),加标回收率在95%~100%。该法准确度与国标法相当,且省时、经济、环保,适用于实验教学、科研和生产实践。     

基于Gabor核函数窗设置的图像识别

提出一种依据Gabor核函数窗的设置对红外图像进行识别,首先给出Gabor核函数窗的定义,分析核函数窗对红外图像识别卷积过程,给出了核函数窗的时窗和频窗,最后在对红外图像滤波识别时给出了最优核函数窗的计算方法。计算机仿真实验表明,只有在优化核函数窗设置设置情况下,才能取得了较好的识别结果。     

高职学院学生综合测评指标体系构建研究

构建学生综合测评管理平台,运用多元互动方式,学生自评互评与教师（辅导员）评价相结合的学生综合测评,保证了学生个人综合素质的发展,评价全学程相伴,促进了学生的教育和管理工作,激励学生完善自我、提高综合素质。     

馆际互借在ALEPH中的应用实践

本文给出了馆际互借的概念,阐述了馆际互借的应用原理,并详细介绍了在本馆图书管理系统ALEPH500中馆际互借的解决方案。     

洞口■溪瑶族民居的艺术特色

湖南洞口■溪瑶族民居融合了当地的民俗和自然的生态环境,形成了自己特有的建筑艺术特色,并具备其独特的艺术性。文章从造型结构、材质、民俗文化等三个方面并结合当地文化生活和风俗习惯简要阐明了其独具一格的艺术特色。     

How to attract university applicants: exploring tertiary education advertising patterns in the Czech Republic

Tertiary Education and Management - In the highly dynamic, competitive and uncertain environment of tertiary education, universities nowadays have to intensify marketing communication to address...     

从解释世界到改变世界——论马克思对康德实践观的超越

马克思在对德国古典哲学的基本命题—主客关系问题进行批判继承的基础上提出了以实践活动为出发点的"实践唯物主义哲学"。马克思的实践唯物主义哲学与作为德国古典哲学源头的康德的实践哲学在实践主体、实践客体、实践的主客体关系及实践的目的等四个方面有着内在的联系和区别,其区别之处正是马克思实践观对康德实践观的超越之处。     

Improving Academic Performance of Sport and Exercise Science Undergraduate Students in Gross Anatomy Using a Near-Peer Teaching Program

Peer and near-peer teaching programs are common in medical undergraduate courses. However, there are no studies that have investigated the effectiveness of a near-peer teaching program on the academic performance of undergraduate students pursuing sport and exercise science coursework. This study was conducted to analyze the effectiveness of such a program for students who participated in a course on the functional anatomy of the locomotor apparatus. A total of 39 student participants were divided into two groups: students in one group voluntarily attended at least one session of a near-peer teaching program, and students in the other group attended no sessions. The final grade (range 0–100%) was recorded and used as an indicator of academic performance. The final grade of students who attended the near-peer teaching program (69.5 ± 16.0%) was 38.7% higher (P = 0.002, d = 1.06) than those who did not (50.1 ± 20.4%). When the academic performance of the same students was evaluated in another course (exercise physiology) that did not offer a near-peer teaching program, there were no significant differences between the groups (students who attended or did not attend the near-peer teaching program). A significant positive association was found between near-peer teaching program frequency and the number of students approved and not approved in the course (P = 0.041). A significant difference (P = 0.001) was found in the attendance at regular classes between the group who participated in the near-peer teaching program (median: 62 hours; IQR [interquartile ranges]: 4.0 hours) and those who did not (median: 58 hours; IQR: 4.0 hours). Gender was not a moderating factor on academic performance or near-peer teaching program attendance. These results highlight the effectiveness of a near-peer teaching program on the academic performance of students from a sport and exercise science degree program while enrolled in an anatomy course. Anat Sci Educ. © 2018 American Association of Anatomists.     

英语委婉语的语用功能

为达到理想的交际效果,人们创造出委婉语这一语言表达形式,使其在交际中扮演着重要的角色做为一种语言现象和一种文化现象的委婉语,从言语交际角度看,其最大特点是间接和含蓄。使用委婉语,不仅显得说话人彬彬有礼,还因照顾了对方的情绪而获得好感和认可。