理工类专业英语课程教学改革探索与实践

针对当前理工类院校专业英语课程的开设现状,指出专业英语在学生的素质教育中占有重要地位,应得到重视。分析了专业英语教学中存在的问题,结合自身教学实践,提出了相关教学改革的几点建议和对策。     

试析《新编大学英语》的讨论式教学

《新编大学英语》的讨论式教学为广大英语教师进行“以学生为中心”的课堂教学改革提供了有效的途径。讨论式教学能帮助学生在语言实践中把语言知识和技能主动转化为交际能力,能充分发挥学生的主观能动性,激活学生的创新潜能。在讨论过程中,教师要用最新的知识充实讨论内容,以调动学生的学习积极性。     

论高等学校服务社会的功能

指出高等学校必须为社会服务,在本质上具有服务性。地方高校只有在为当地社会经济的发展服务中,才能实现自身的价值,为此,提出建立地方高校服务于当地经济社会发展的机制。     

[0,1]格上有限@-fuzzy双线性方程的解集

在[0,1]格上讨论了有限@-Fuzzy双线性方程,即A@X=B@X或∧ni=1（aiαxi）=∧ni=1（biαxi）,其中,i∈{1,2,…,n}的有解判别条件、解集和结果集.     

What makes learners a good fit for hybrid learning? Learning competences as predictors of experience and satisfaction in hybrid learning space

Compared with fully face-to-face or online learning environments, implementation of hybrid learning spaces is costly given the spaces making all learning options available for learners. Therefore, decisions on investments in hybrid learning are critical for institutions. Satisfaction and experience of learners is one of the important indicators for assessing the cost-effectiveness of learning space implementation; thus, predictions of learners' satisfaction and experience can inform institutions' decision making on learning space investments. Moreover, learning competences are found correlated with learners' satisfaction and experience in general and e-learning settings. Therefore, the present study aimed at exploring predictive learning competences for hybrid learners' experience and satisfaction. A hybrid learning space was built upon a proposed model at Shanghai Open University. 211 students’ learning competences and their satisfaction and experience in the hybrid learning space were examined. The results showed that except cognitive engagement competence, most predictive competences were not significantly associated with hybrid learners' satisfaction and experience. The findings indicated that since hybrid learning keeps all options available, to experience satisfying learning, students need not have certain competences but cognitive engagement competence, which is correlated with learners' cognitive ability to figure out the right mix of learning options.     

Evaluation and application of an efficient plant DNA extraction protocol for laboratory and field testing

Nucleic acids in plant tissue lysates can be captured quickly by a cellulose filter paper and prepared for amplification after a quick purification.In this study,a published filter paper strip method was modified by sticking the filter paper on a polyvinyl chloride resin(PVC)sheet.This modified method is named EZ-D,for EASY DNA extraction.Compared with the original cetyl trimethylammonium bromide(CTAB)method,DNA extracted by EZ-D is more efficient in polymerase chain reaction(PCR)amplification due to the more stable performance of the EZ-D stick.The EZ-D method is also faster,easier,and cheaper.PCR analyses showed that DNA extracted from several types of plant tissues by EZ-D was appropriate for specific identification of biological samples.A regular PCR reaction can detect the EZ-D-extracted DNA template at concentration as low as 0.1 ng/μL.Evaluation of the EZ-D showed that DNA extracts could be successfully amplified by PCR reaction for DNA fragments up to 3000 bp in length and up to 80%in GC content.EZ-D was successfully used for DNA extraction from a variety of plant species and plant tissues.Moreover,when EZ-D was combined with the loop-mediated isothermal amplification(LAMP)method,DNA identification of biological samples could be achieved without the need for specialized equipment.As an optimized DNA purification method,EZ-D shows great advantages in application and can be used widely in laboratories where equipment is limited and rapid results are required.     

Kidney function change after transcatheter aortic valve replacement in patients with diabetes and/or hypertension

Aortic stenosis(AS)is a progressive heart valve disease occurring predominantly in older patients.According to a survey in a western country,the prevalence of AS is nearly 6.4%in patients over 75 years old(Carabello and Paulus,2009).Transcatheter aortic valve replacement(TAVR)is an alternative method for AS patients.Previous studies have described how up to 66%of TAVR patients have concomitant baseline kidney dysfunction(Ferro et al.,2015;Gargiulo et al.,2015).The majority of patients can benefit from the TAVR procedure with the recovery of kidney function.     

“以学生为中心”有效教学模式探索与实践

文章以电路绘图与制版课程为例,对"以学生为中心"的有效教学模式进行了探索性研究和实践,包括其有效教学模式的内涵、教学模式实施的关键、教学模式的实施等几个方面,提出充分发挥在学习过程中学生的主体作用的教学理念,激发学生的学习兴趣,提高教学效率,培养学生自学能力和运用知识的能力。     

Studying the effect of redundancy in a virtual reality classroom

Educational technology research and development - Redundancy effect has been investigated in many controlled experimental studies, however, it is seldom investigated whether the same redundant...     

家庭环境影响青少年发展的模式与对策

家庭环境是影响青少年健康发展的重要因素。文章在梳理生态系统理论、发展情境理论、积极青少年发展理论三种青少年发展理论的基础上,综合考虑家庭环境因素、积极心理品质、人际关系和学校环境系统在青少年发展中的作用,构建了家庭环境影响青少年健康发展的理论模型,并相应提出促进青少年健康发展的教育对策与建议。