Finite element modeling for analysis of cracked cylindrical pipes

The characteristic properties of shell element with similar shapes are used to generate a so-called super element for the analysis of the crack problems for cylindrical pressure vessels. The formulation is processed by matrix condensation without the involvement of special treatment. This method can deal with various singularity problems and it also presents excellent results to crack problems for cylindrical shell. Especially,the knowledge of the kind of singular order is not necessary in super element generation; it is very economical in terms of computer memory and programming. This method also exhibits versatility to solve the problem of kinked crack at cylindrical shell.     

Online self-paced high-school class size and student achievement

Educational technology research and development - In the traditional brick-and-mortar classroom, small classes are generally perceived as desirable, but the benefits associated with particular...     

A situation-based flipped classroom to improving nursing staff performance in advanced cardiac life support training course

ABSTRACT

The Advanced Cardiac Life Support (ACLS) training aims to help nurses establish the basic competence of the comprehension of electrocardiograms (ECG/ EKG). However, learners usually have difficulty memorizing the meanings of different EKG waveforms, which could represent clinical symptoms or even the feeling of dying, via traditional instruction. Some serious problems could lead to death if the nursing staff do not make correct judgments and provide timely treatment. Thus, this paper reports an explorative study investigating the effects of a flipped classroom approach on nursing staffs’ ACLS learning achievement. A 2-week experiment was conducted to compare the learning achievement of the nursing staff who learned with the ACLS situation-based flipped classroom approach to those who learned with the ACLS traditional flipped approach. The experimental results show that the nursing staff who learned with the proposed approach had better learning achievements, motivation, and satisfaction than those who learned with the ACLS traditional flipped approach.     

Effects of embedding a problem-posing-based learning guiding strategy into interactive e-books on students’ learning performance and higher order thinking tendency

Owing to the popularity of tablet computers and smart phones, e-books have become an important medium for both formal and informal learning. However, conventional e-books are mainly designed to provide information in the form of multimedia, implying that students spend most of their time memorizing and comprehending what they read from e-books, while seldom engaging in higher order thinking. In this study, a problem-posing framework is proposed for developing an interactive e-book for guiding students to observe and pose questions. An experiment on an elementary school natural science course was conducted to demonstrate the effectiveness of the proposed approach. The participants were 46 fourth-grade students. From the experimental results, it was found that the problem-posing-guiding interactive e-book can significantly improve the students’ learning achievements, critical thinking tendency, and deep motive. It was also found that the proposed approach did not increase the students’ cognitive load owing to the provision of proper supports during the problem-posing process, which has generally been identified as a challenging task.     

Evaluating the Social Validity of Project TEAM: A Problem-Solving Intervention to Teach Transition Age Youth with Developmental Disabilities to Resolve Environmental Barriers

Project TEAM teaches transition-age youth with developmental disabilities (DD) to identify physical and social environmental barriers and supports, generate solutions to barriers, and request modifications to increase participation. Establishing the social validity of this environment focused intervention with youth and their parents is critical, given the significant shift the intervention represents from rehabilitation’s more traditional focus on body structures and function. University researchers and youth research collaborators conducted a participatory evaluation of the purpose, procedures, and perceived benefits of Project TEAM. Youth with DD (n = 42) provided feedback using three methods: activity voting, a survey, and a focus group. Parents (n = 37) also provided feedback. Results suggest that both youth and parents find Project TEAM acceptable and relevant to youth’s current and future lives. The majority of youth and parents felt Project TEAM fostered independence and empowerment, although some youth and parents reported challenges with the unique environment-focused approach.     

Virtual and Traditional Feedback-Seeking Behaviors: Underlying Competitive Attitudes and Consequent Grade Performance

The electronic medium continues to play an increasingly important role in the delivery of management education despite a paucity of empirical studies on its impact and efficacy. Results from a study of competitive attitudes and feedback‐seeking behaviors across seven “hybrid” electronic cum live classes showed that Kiasu‐Negative (a competitive attitude directed at preventing others from getting ahead of oneself) and Kiasu‐Positive (a competitive attitude directed at personal diligence to get ahead of others) ( Hwang, Ang, & Francesco, 2002 ) were related to two electronic discussion board feedback‐seeking behaviors. These feedback‐seeking behaviors, in turn, were related to grade performance as measured by multiple‐choice tests. Traditional feedback‐seeking measures of asking the professor in class or outside the class, and checking with fellow students for their views on class topics did not have a positive influence on multiple‐choice test performance. In light of these findings, educators should consider how best to encourage participation on electronic discussion boards for hybrid type courses, while researchers should further examine the underlying causes of learning from such electronic exchanges. Other implications of these findings are also discussed.     

Cognitive regulations in ICT-supported flipped classroom interactions: An activity theory perspective

In recent years, most studies on flipped classrooms or flipped learning have focused on learners’ motivation, academic achievement and teachers’ and students’ perceptions of the flipped classroom. Little research has involved interactions in the flipped classroom. This study aims to show that in-class collaborative learning in the flipped classroom can not only be conceived as a collective activity consisting of discrete actions, but also as a systematic activity. From the activity-theoretical perspective, contradictions were found between components of an activity such as subject, tools, rules, community, division of labor, object and outcome. This study conducted a pre-experiment, selecting one lesson of the seventh-grade Information Technology Course as the learning content, conducted in a flipped classroom. Three triads with different compositions were specifically observed by recording their interactions. More second-level contradictions existed between subject and tools, and division of labor within the low-level triad than within the other two triads, and more first-level contradictions also occurred within the low-level triad than within the other two triads. Most second-level contradictions within the high-level triad were resolved by self-regulation of cognition. Instead, most second-level contradictions within the mixed-level triad were overcome by co-regulation or shared regulation of cognition. This study sheds light on how to effectively design and implement flipped learning, and provides a new approach for analyzing interactions in the classroom.