Rapid and cost-effective fabrication of selectively permeable calcium-alginate microfluidic device using ��modified�� embedded template method

In this paper, we have presented a non-lithographic embedded template method for rapid and cost-effective fabrication of a selectively permeable calcium-alginate (Ca-alginate) based microfluidic device with long serpentine delay channel. To demonstrate the versatility of the presented method, we have demonstrated two different strategies to fabricate serpentine long delay channels without using any sophisticated microfabrication techniques, in formal lab atmosphere. The procedure presented here, also, enables the preparation of a multilayered microfluidic device with channels of varying dimensions, in a single device without using any sophisticated micromachining instrumentation. In addition, we have also qualitatively studied the diffusion of small and large molecules from a Ca-alginate based microfluidic device and proposed a method to effectively control the out-flow of macro biomolecules from the crosslinked Ca-alginate matrix to create a selectively permeable matrix required for various biological and biomimetic applications, as mentioned in the Introduction section of this work.     

Assessing the quality and equality of Hong Kong basic education results from PISA 2000+ to PISA 2006

This paper seeks to examine the quality and equality of basic education of Hong Kong based on the first three cycles of the Program for International Student Assessment (PISA). Results from these three assessments suggested that the Hong Kong students have an outstanding performance in mathematics, science and reading. In particular, the performance of reading improves substantially in PISA 2006. As far as equality in education is concerned, the achievement gap of students from different socio-economic backgrounds in Hong Kong is relatively small compared with other countries. However, the academic performance variation between-schools suggest that, there is still academic segregation among secondary schools in Hong Kong although it has been reduced slightly in the PISA 2006.     

Meeting the highly qualified teachers challenge

The moulding of the future of a nation depends on the teachers and the education they provide in schools. Research evidence from the US. National Assessment of Educational Progress (NAEP) confirms this to be the case. Quantitative analysis of data indicates that measures associated with pre-service teacher preparation are by far the strongest correlates of student achievement (Darling-Hammond 2000). The research report of Wilson, Floden, and Ferrini-Mundy (2001) also suggests a strong relationship between teacher preparation and teacher effectiveness. Other research studies similarly indicate that differences in teacher quality are the most crucial for student achievement when compared with variables such as class size, streaming, or the amount of homework (Anderson & Helms 2001; Mendro 1998; Powell & Anderson 2002; Rivkin, Hanushek & Kain 2001; Saunders & Horn 1994; Strong & Tucker 2000) as possible contributory factors. In the pursuit of improved student achievement, we therefore need to examine seriously the role of teacher variables, ranging from teacher qualifications and their subject matter knowledge, to what motivates them to take up teaching as a career and as a consequence, how they teach in classrooms.     

The Things Girls Shouldn't See: Relocating the penis in sex education in Hong Kong

This article reports on how young women in Hong Kong relate to the penis. A total of nine focus group interviews were conducted at the University of Hong Kong to enable participants to reflect on and talk about their 'experience of the penis'. It is found that despite society's various attempts to restrict their access to the penis, it is very much present and available to the young women in Hong Kong. While most of the participants reported the normative response of disgust, which was expected as part of the 'proper femininity', positive experiences of the penis characterised by agency, mastery and fulfilment were also reported. Some of the things they do, such as watching an exhibitionist or actively consuming sexually explicit materials and pornography, subvert the discursive practice of positioning women as passive sexual objects. It is believed that with more open access to knowledge and experience, women will stand a better chance of achieving a more agentive relationship, not only with the penis as a potential transitional object in intimate relationships, but also with their own sexuality.     

The purposes outdoor education does,could and should serve in Singapore

This paper discusses the purposes that outdoor education does, could and should serve in Singapore. Gert Biesta’s conceptualisation of three functions of education is adapted to frame deliberations on the purposes of outdoor education in Singapore’s socio-political and educational milieu. The author suggests that outdoor education in Singapore could and should give high priority to serving three educational purposes; namely, building resilience, building emotional bonds with the place that constitutes Singapore, and building ecological literacy. In pursuing such purposes, outdoor education in Singapore might lessen the gap between the educational outcomes it currently produces and those it could achieve in the future.     

The impact of organizational learning capacity from the socio-cognitive perspective on organizational commitment

This study is to examine the impact of organizational learning on affective commitment in Korea. In particular, this study addressed the importance of organizational learning as an HRD strategy from the socio-cognitive perspective. Data were collected from four large companies located in the area of Seoul, South Korea. There were 233 usable questionnaires yielding a response rate of 61 %. Multiple regression analysis and principal factor analyses were applied to conduct a data analysis. The results showed that a linear relationship existed between the organizational learning capacity and affective commitment (R ² = .495). Four dimensions were statistically significant with the exception of “feedback.” Participative decision-making is the most important factor. Finally, the study discussed some implications for HRD theory and practice.     

Examining public acquisition of science knowledge from social media in Singapore: an extension of the cognitive mediation model

This study extends the cognitive mediation model (CMM) by examining the role of social media in cultivating public science knowledge. A sample of 901 Singaporeans was collected through an online survey panel. The results showed that the CMM could be applied to a social media context with a focus on science literacy. Specifically, the findings indicated that people with higher levels of surveillance gratification and social utility motivations tended to pay more attention and to elaborate more about science news that they encounter on social media. Likewise, people with greater social utility motivation tended to engage in greater interpersonal discussions on social media. Notably, attention to news on social media had an indirect association with science knowledge through news elaboration and interpersonal discussion on social media. Implications for theory and practice for science communication were discussed.     

Community and School Contexts in Youth Gang Involvement: Combining Social Bonds and Social Organization Perspectives

The Urban Review - Social bonds and social organization theory are combined to examine schools’ roles in regulating youth gang involvement in the context of community changes—an...