Oxygen plasma treatment for reducing hydrophobicity of a sealed polydimethylsiloxane microchannel

Rapid prototyping of polydimethylsiloxane (PDMS) is often used to build microfluidic devices. However, the inherent hydrophobic nature of the material limits the use of PDMS in many applications. While different methods have been developed to transform the hydrophobic PDMS surface to a hydrophilic surface, the actual implementation proved to be time consuming due to differences in equipment and the need for characterization. This paper reports a simple and easy protocol combining a second extended oxygen plasma treatments and proper storage to produce usable hydrophilic PDMS devices. The results show that at a plasma power of 70 W, an extended treatment of over 5 min would allow the PDMS surface to remain hydrophilic for more than 6 h. Storing the treated PDMS devices in de-ionized water would allow them to maintain their hydrophilicity for weeks. Atomic force microscopy analysis shows that a longer oxygen plasma time produces a smoother surface.     

Pathways to Inclusion: Moving from special school to mainstream

The present study investigated a schools partnership program that has achieved an unusually high level of reintegration of children with Special Educational Needs (SEN) from a special school to neighbourhood mainstream schools. The study explores, through a qualitative methodology, the perspectives of mainstream and special school staff. Factors that were barriers and facilitators in successful inclusion are identified and a measure of social inclusion completed by peers is used to validate the perceptions of staff regarding the success of the children’s social inclusion. The article concludes by considering a model of special school–mainstream school partnerships in promoting inclusion, developed from the factors identified.     

Effects of Third Age Learning Programs on the Life Satisfaction,Self-Esteem,and Depression Level among a Select Group of Community Dwelling Filipino Elderly

With the growing number of older adults becoming a global concern, many countries have focused on education as a means of promoting successful aging. Although third age learning is gaining substantial ground in other countries, it is not well-established in the Philippines. The overall intent of this experimental study was to assess the effectiveness of community-based third age learning programs on the life satisfaction, self-esteem, and level of depression of a select group of Filipino elderly in a community setting. A pre- posttest study design was used on 40 community dwelling Filipino elderly who were randomly assigned to either the experimental or control group. Both groups accomplished the Life Satisfaction Index for the Third Age Short Form (LSITA-SF), Rosenberg's Self-esteem Scale (RSES), and the Geriatric Depression Scale (GDS). The experimental group was exposed to a four-month program consisting of wellness, physical fitness, and livelihood training activities facilitated by volunteer faculty from a local university; the control group received no intervention. The results of t tests showed statistically significant group differences between the experimental and control group, with the former posting higher life satisfaction, self-esteem, and lower depression level compared to the control group. Findings of this study add to the knowledge base that active participation in third age learning programs—which include opportunities for physical activity, cognitive learning, recreation, and social interaction—can improve the psychological and psychosocial health of an older adult.     

STRATEGIES FOR SOLVING THREE FRACTION-RELATED WORD PROBLEMS ON SPEED: A COMPARATIVE STUDY BETWEEN CHINESE AND SINGAPOREAN STUDENTS

This paper presents the results obtained from a study comparing the strategies used by 1,070 Chinese students and 1,002 Singaporean students from primary grade 6 to secondary year 2 in solving three fraction-related problems. It is part of the author's Ph.D. study, which involves more word problems on speed. The Chinese students performed better than the Singaporean students on two of the three problems, while the Singaporean students performed better than the Chinese students on the other. The strategy analyses reveal that the Chinese students used the traditional methods like arithmetic and algebraic strategies more frequently than the Singaporean students, whereas the Singaporean students used the model and unitary methods more frequently than the Chinese students. Implications for the teaching and learning of word problems on speed, as well as problem solving, are also provided.     

Further iterations on using the Problem-analysis Framework

A core component of applied educational and child psychology practice is the skilfulness with which practitioners are able to rigorously structure and conceptualise complex real world human problems. This is done in such a way that when they (with others) jointly work on them, there is an increased likelihood of positive outcomes being achieved for clients. The Problem-analysis Framework as discussed in this paper offers one way of working with such complexity which is grounded in a sound knowledge based in applied psychology. This paper provides further clarity on using the framework within applied practice. The authors were all trained in and use the Problem-analysis Framework and now work in many different types of applied settings within Australia, Iceland, New Zealand, Singapore and the United Kingdom. This paper illuminates important aspects of the problem-analysis approach itself for those currently learning it, as well as providing an aide-mémoire to those using it and those who want to develop their skills in this area.     

Education policy borrowing in China: has the West wind overpowered the East wind?

Recent education reform in China reflects the global trend of education policy borrowing from Anglophone countries such as the USA. The reform in China essentially advocates shifting from knowledge reproduction and didacticism to knowledge construction by students through a learner-centredness approach. Aware of the trend of borrowing policy from ‘Western’ countries, some educators in China use the proverb ‘the West wind has overpowered the East wind’ to describe this phenomenon. This paper examines the cultural factors that influence education policy borrowing in China by drawing upon Johnson’s metaphors of the ‘politics of selling’ and the ‘politics of gelling’. This paper argues that there exist fundamental cultural differences between Western and Chinese perspectives on the nature and transmission of knowledge that make education policy transfer in China challenging. This paper further proposes that China borrow education policy judiciously by integrating foreign and indigenous sources of knowledge, teaching and learning.     

Activity identification and classification in wheelchair rugby using fractal dimensions

The purpose of the study was to develop an evidence-based method for identification and classification of wheelchair sports (rugby) activities and performance during a match using fractal dimensions. The approach involves five wheelchair rugby athletes of different classifications who were monitored during six different matches using mobile devices with in-built accelerometers. The linear acceleration signals were processed using two different approaches based on calculating fractal dimensions. One was based on Rényi’s entropy, which produced the probability dimension (S ₀), and the other was based on Hausdorff’s definition, resulting in the Hausdorff dimension (D _H). When both dimensions were individually plotted as cumulative distribution plots, they offered two approaches to analyze the performance of a wheelchair rugby athlete. Combining the two dimensions produced a two-dimensional (2D) mapping that identified five different activities of each athlete during a wheelchair rugby match—(1) no activities, (2) low activities, (3) high-speed coasting, (4) high-speed pushing, and (5) extreme collisions. In the 2D mapping, four boundary lines separate the five different activities, which produced a template for each athlete. It was found in this research that the classification and skill level of the athlete had an effect on the boundary line values that form the template. The outcome of the activity identification was also verified by comparing with video footage of the athletes. The method developed in this research has possible applications for coaching, match analysis, and talent identification.     

A study of Web 2.0 applications in library websites

Web 2.0 represents an emerging suite of applications that hold immense potential in enriching communication, enabling collaboration and fostering innovation. However, little work has been done hitherto to research Web 2.0 applications in library websites. This paper addresses the following three research questions: (a) To what extent are Web 2.0 applications prevalent in libraries?; (b) In what ways have Web 2.0 applications been used in libraries?; and (c) Does the presence of Web 2.0 applications enhance the quality of library websites? Divided equally between public and academic, 120 libraries' websites from North America, Europe and Asia were sampled and analyzed using a three-step content analysis method. The findings suggest that the order of popularity of Web 2.0 applications implemented in libraries is: blogs, RSS, instant messaging, social networking services, wikis, and social tagging applications. Also, libraries have recognized how different Web 2.0 applications can be used complementarily to increase the level of user engagement. Finally, the presence of Web 2.0 applications was found to be associated with the overall quality, and in particular, service quality of library websites. This paper concludes by highlighting implications for both librarians and scholars interested to delve deeper into the implementation of Web 2.0 applications.     

A comparative study on first-time and experienced project-based learning students in an engineering design module

This study aims to compare and evaluate the learning ability and performance differences between two groups of students undergoing project-based learning (PjBL), with one group having prior PjBL experience, while the other group is being freshly exposed to PjBL. More specifically, it examines if there are significant differences in knowledge score, problem-solving ability, and eventual project-deliverable outcomes between the two sets of students. Performances were compared via qualitative and quantitative analyses. Key findings have indicated a significant increase in fundamental formative knowledge; enhanced problem-solving abilities; and production of better performing artefacts with regard to the set of design skills between experienced and first-time PjBL groups. This study also highlighted that experienced PjBL students have less conflicts within their groups, and are more receptive to PjBL compared to first-time PjBL students. Results from this study provide a starting point for educators to seek new learning/facilitating strategies that are relevant based on the experience and learning styles of students.