Systematic Dynamic Effects in Multiple Impact Pairs and Distributed Factors

In this paper in general the dynamic effects are considered and described, caused by different stand-ing waves in discrete and distributed systems with impacts and other strongly positional non-linear fac-tors, introduction of which in the models of me-chanical objects is dictated by the necessity to con-sider processes, accompanied with impacts of me-chanical subsystems of different nature.     

Online field experiments

ABSTRACT

Changes in information communication technology across the Asian region have altered our field substantively and methodologically. The rapid growth of digitized communications allows us to find new purchase in examining questions fundamental to our understanding of communication theories, norms, and practices across Asia. While methods such as text mining and user analytics are increasingly popular among computational scholars, here, we focus on online field experiments, an approach to studying communication that has the potential to overcome many existing obstacles to social scientific inquiry but one that has been used relatively rarely in Asia. In this paper, we discuss what online field experiments are and how they differ from traditional experiments as well as online lab and survey experiments. We show how researchers can go about designing and implementing online field experiments, focusing on issues where online field experiments differ from their traditional counterparts – legal and ethical considerations, construct validity, randomization and spillover, and statistical analyses. Finally we discuss how online field experiments can advance our understanding of communication in Asia by helping researchers to gain insight and make causal inferences on attitudes, behaviors, and interactions that were previously unobservable ?.     

仿真实验在药物分析实验教学中的应用

结合本校的实际情况,对目前药物分析实验教学中存在的问题进行分析,讨论了仿真实验在实验教学中的作用、弊端及对策。     

Integration of Scientific Competence into Gross Anatomy Teaching Using Poster Presentations: Feasibility and Perception among Medical Students

Scientific competencies, as defined in the German competency framework, describe the ability to think independently and act scientifically which is a central component of medical education. This report describes integration of scientific competencies into anatomical teaching. Based on findings seen in two consecutive years of dissection courses, students worked on either a case report (n = 70) or an original research study (n = 6) in the format of a scientific poster while learning to use primary literature. Posters were evaluated by juror teams using standardized evaluation criteria. Student perception of the project was assessed by quantitative and qualitative data obtained from the faculty's course evaluation and an online-survey. Overall, students worked collaboratively and invested extra-time (median 3.0 hours) in poster creation. Primary literature was integrated in 90.8% of the posters. Overall poster quality was satisfactory (46.3 ± 8.5 [mean ± standard deviation] out of 72 points), but several insufficiencies were identified. Students integrated information gained from the donor's death certificate, post-mortem full-body computed tomography (CT) scan (22.4%), and histopathological workup (31.6%) in their case reports. Students responded positively about learning new scientific skills (median 4.0 on a six-point Likert scale), but free-text answers revealed that some students experienced the project as an extra burden in a demanding gross anatomy course. In summary, it was feasible to introduce students to scientific skills during the dissection course and to increase interest in science in approximately a third of the survey respondents. Further adjustments to ensure the posters' scientific quality might be necessary for the future.     

高考物理实验与高中物理教学的关系分析

物理是一门实验学科,在高中物理教学中,实验一直贯穿于物理教学的始终。随着近年来我国教育体系的不断改革,在新课标体系下,学校和老师越来越重视高中物理实验。物理实验不仅仅体现在平时的教学中,在高考物理中占据的分数比例也非常大。因此,学校应该加强高中物理实验教学,培养学生的实验意识,提高学生的实验能力水平,从而在高考中取得优异的成绩,为国家人才培养和高等学校录取人才提供强有力的保证。     

提升高分子本科生创新能力的实验体系改革初探

高分子材料科学与工程专业旨在培养高分子材料领域的高级工程技术人才,对学生的实践能力和创新能力都有很高的要求。本文针对武汉理工大学高分子专业大学生的特点及现有体系的问题,提出了几种高分子专业实验体系的改革措施,以期有效提升该专业本科生的创新能力,并辐射至整个工科院校。     

从创新实验中体会教书育人

科学态度不仅是一句口号,更需要在实际科研工作中不断强化。本科生参加创新实验得以与研究生导师近距离接触,在提早感受实验室氛围的同时,不仅可以培养他们的科研兴趣,锻炼他们的动手能力,丰富专业知识,提高沟通、交流的能力,更重要的是,在实验中他们学会克服自身的惰性,培养科研精神。这样,良好的工作态度以及专业的工作素养可以为他们步入社会参加工作带来有力保障。     

NO2与NO气体制备演示一体化微型实验探究

实验室制取NO2、NO的反应,由于其毒性,实验装置的改良备受关注,笔者进行了进一步的改进,旨在减少试剂用量、减轻尾气毒害,人人有机会动手实践,这一点符合绿色化学的发展理念。     

初中生基于速度类运动处方体能素质干预实验研究

通过速度类项目50米跑课外教学实验,施以不同的教学方法,观察学生速度类体能素质经运动处方干预后的变情况,并运用方差分析对所得实验数据进行统计分析.结果显示：采用运动处方的方式干预初中生的速度类体能素质发展效果明显好于一般的教学方式.     

对高校弱质学生开展软式排球教学的实验研究

通过软、硬式排球专项课的教学实验进行比较，结果显示：软式排球的技术难度小，更容易掌握和运用，比赛时来回球的次数、时间明显增多，能够使学生的学习态度、注意力显著改善。同时增强身体素质，体现满意感的心理效益。