Enhancing Student Learning in Food Engineering Using Computational Fluid Dynamics Simulations

Abstract: The current generation of students coming into food science and engineering programs is very visually oriented from their early experiences. To increase their interest in learning, new and visually appealing teaching materials need to be developed. Two diverse groups of students may be identified based on their math skills. Food science students tend to find it difficult to use mathematics as a problem‐solving tool for food engineering problems. Food engineering students, on the other hand, should be challenged to use emerging mathematical tools to develop their problem‐solving skills. Therefore, the approach of this project involved the development of a curriculum to train undergraduate food engineers in the effective use of computational fluid dynamics (CFD) software to solve food engineering problems by engaging them in the creation of food engineering teaching tools. These CFD outputs were then used as innovative teaching tools for the food science students. In this paper, this concept will be illustrated by unsteady‐state heat transfer and fluid flow problems. To evaluate the efficiency of the teaching materials developed, a student focus group was asked to answer the same quiz following a conventional and CFD output aided teaching session. The assessment result showed an improved understanding of the subject after the CFD teaching session. These visual aids were excellent tools to illustrate the validity of the formulas presented in class. In addition, the new visual materials enabled a better understanding of the relationships among different process parameters. In general, this helped the food science students better appreciate the food engineering concepts that govern food processing operations.     

Graduate students’ self-reported perspectives regarding peer feedback and feedback from writing consultants

This study reported how ten Taiwanese Master’s students perceived their experiences of receiving feedback given by their peers and writing consultants to revise a shortened version of their thesis proposals. Collected over the course of one semester, data included students’ writing portfolios and interviews with them. Analysis of the data revealed three major themes: (1) The participants felt quite positive about providing and receiving peer feedback, although they seemed cautious toward language-related peer comments; (2) they generally had positive experience with the writing consultants, although the perceived usefulness of the consultants’ feedback varied with individual consultants and (3) the two types of comments served different functions for students, and questions arose from the peer editing process could serve as prompts for writing consultation sessions. Possible future research directions as well as pedagogical implication are outlined to conclude the paper.     

Social Presence in Synchronous Virtual Learning Situations: The Role of Nonverbal Signals Displayed by Avatars

Social factors play an important role in determining whether instructional communication in computer-supported settings will be successful. Social presence is a social factor, specifically addressing the feeling of being present with another person in a virtual environment. This article describes possibilities to influence the feeling of social presence in synchronous learning scenarios using desktop collaborative virtual environments (CVEs). Desktop CVEs are technically simple compared with immersive CVEs and can be adapted according to the needs of the users. In this article, possible adaptations are described using the example of the desktop CVE virtual team room. In CVEs, users are represented as avatars. Avatars may or may not convey nonverbal signals. The focus of the article is on whether the actual use of nonverbal signals can affect the sense of social presence and thus help to establish and maintain the learner's motivation and provide support for structuring social interaction in learning situations. The paper provides a review of exploratory studies and experiments as well as a report on the author's own studies. Future research questions concerning learning in CVEs are discussed.     

Using Electroencephalography to Measure Cognitive Load

Application of physiological methods, in particular electroencephalography (EEG), offers new and promising approaches to educational psychology research. EEG is identified as a physiological index that can serve as an online, continuous measure of cognitive load detecting subtle fluctuations in instantaneous load, which can help explain effects of instructional interventions when measures of overall cognitive load fail to reflect such differences in cognitive processing. This paper presents a review of seminal literature on the use of continuous EEG to measure cognitive load and describes two case studies on learning from hypertext and multimedia that employed EEG methodology to collect and analyze cognitive load data.     

Effectiveness on Mental Health of Psychological Debriefing for Crisis Intervention in Schools

The purpose of this paper is to provide a summary of evidence for the effectiveness and safety of commonly used crisis interventions in schools, such as critical incident stress debriefing (CISD), critical incident stress management (CISM), and psychological debriefing (PD). Two researchers independently searched relevant databases for reviews and meta-analyses in English language peer-reviewed journals using identified keywords. The database search was supplemented by hand searches of the reference lists of database-identified reviews. Selected reviews were compared and analyzed for the effectiveness of CISD/CISM/PD interventions. Research findings suggest that these interventions are ineffective and may be harmful. Evidence of effectiveness of CISD/CISM/PD interventions in schools is very limited. Given evidence of ineffectiveness and potential harm of CISD/CISM/PD interventions in adults and limited evidence of these interventions in schools, there is no compelling reason to implement CISD/CISM/PD following crisis events in schools.     

Cultural Endangerment and Education: Educational Analysis of Changes in Cultural Transmission of the Dongba Dance Tradition of the Naxi People in Lijiang,Yunnan, China

Many traditional ethnic cultural items are being endangered in China. Using the Dongba dance culture of the Naxi people as a case study, this paper seeks to analyze and interpret the endangerment of culture from an educational perspective, based on an analysis of the interaction between the cultural transmission mechanism of Dongba dance and the formal schooling of the Naxi people in Lijiang, China. By describing and comparing the traditional and current forms of Dongba dance transmission, the paper shows how the institution of formal education competes with older modes of cultural transmission, resulting in the endangerment of Dongba dance as a living cultural relic. So, in order to truly realize and improve the function of education in transmitting cultural heritage and to guarantee educational equity, we should prioritize sophisticated ethnic minority cultural items in the assessment and selection phases of education, grant them institutional cultural capital, and put greater effort into developing an appropriate school-based curriculum so that ethnic minority culture may be transmitted and inherited via formal schooling.     

China-ASEAN Relations in Higher Education: An Analytical Framework

China’s dramatic economic rise has tended to overshadow other wider perspectives on the developing China and Association of Southeast Asian Nations (ASEAN) relationship, including in higher education. The article examines contemporary relations between China and ASEAN, set against the longer term development of cultural and trade relations. It is argued that, notwithstanding current territorial disputes, and a history of discrimination against ethnic Chinese in several parts of ASEAN, prospects for a deepening of relations in higher education remain strong. Singapore, Malaysia, and Vietnam are selected as three instances of the developing relationship in higher education and some of the links traced, with the former assessed as best placed to take advantage of its China relations in higher education. The developing sense of regionalism is seen as likely to further enhance China-ASEAN relations in higher education.     

The impact of collective efficacy beliefs on effort and persistence in a group task

Collective efficacy is an important determinant of the motivation of individuals within groups, with increases in collective efficacy producing more effort in a task and greater persistence when faced with failure. To test hypotheses concerning the impact of collective efficacy on effort and persistence, participants (n = 22) were assigned to triads (consisting of the participant and two confederates) and performed three time trials on cycle ergometers. After trial 1, the participants were assigned to either a high or low collective efficacy condition, receiving appropriate bogus performance feedback. All groups received failure feedback after trial 2. Effort was assessed by performance time and maximum heart rate (HRmax) achieved during performance. A 2 (collective efficacy condition) x 3 (trials) analysis of variance with repeated measures on trials revealed significant interaction effects for both performance time and HRmax. Fisher's least significant difference post-hoc tests indicated that, following efficacy manipulation, groups low in collective efficacy significantly reduced both their performance time and HRmax, whereas groups high in collective efficacy maintained performance and HRmax. However, predictions concerning the impact of failure on persistence were not supported. Our results provide partial support for the role of collective efficacy in team sports.