The role of teacher, student and ICT in enhancing student engagement in multiuser virtual environments

This paper reviews the teaching and learning practices and processes that were adopted in a study that incorporated multi-user virtual environments to support General Paper teaching and learning. The paper discusses the roles of the teacher, student and ICT in facilitating engaged learning. As this project is the first of its kind for the subject in Singapore, the paper seeks to highlight strategies that were adopted or could have been adopted to facilitate the enactment of such teacher and student roles as well as ensure effective deployment of ICT to support engaged learning.     

Quantum lithography: A?non-computing application of quantum information

Quantum information theory holds the promise of revolutionizing technologies other than computing and communications. In this article we show how quantum entanglement can be harnessed to beat the Rayleigh diffraction limit of conventional optical lithography, and to permit nano-devices to be fabricated at a scale arbitrarily shorter than the wavelength used. Given the relative ease of performing optical lithography compared with other schemes, and the relative costs associated in migrating the lithography industry to each new fabrication technology, exploiting quantum entanglement to extend the useful life of optical lithography could be economically attractive.     

Maternal Parenting Stress,Child Exuberance,and Preschoolers’ Behavior Problems

This study investigated whether child exuberance, an aspect of temperament related to emotion regulation, moderates the well-documented association between high parenting stress and increased risk for internalizing and externalizing problems during the preschool years. At 42 months of age child exuberance was observed in 256 children (47% girls) and maternal self-reports on parenting stress were obtained. At 48 months internalizing and externalizing problems were assessed through reports from both parents. Indeed, higher maternal parenting stress increased the risk for internalizing problems, and this association was more pronounced among children with high levels of exuberance. Existent emotion regulation difficulties in highly exuberant children may further heighten the risk conveyed by an unfavorable caregiving environment for developing internalizing problems.     

Assessing students＇ reflective responses to chemistry-related learning tasks

Key to renewed concern on the affective domain of education （Fensham, 2007） and on school graduates＇ readiness for a world of work （DEST, 2008; WDA, 2006） is the student＇s inclination-to-reflect when engaged in a learning or problem-solving task. Reflective learning is not new to education （Dewey, 1933; Ellis, 2001）. Since the inclination-to-reflect may not be obvious even among adults at work （Seibert ＆ Daudelin, 1999）, how much more can we expect from school students？ This article presents part of a research on secondary school students＇ inclination-to-reflect when engaged in chemistry learning tasks. The instrument used is the three-part Chemistry Learning and Thinking Instrument （CLTI）. The first part seeks to characterize students＇ inclination-to-reflect while attempting chemistry learning tasks and the other parts aim to characterize their learning-thinking preferences in the subject. This article shares the construction of the learning tasks in the first part and how students＇ reflective responses to these tasks are encouraged, scored and analyzed. Since assessment is said to drive teaching and learning, an alternative form of assessment, such as these CLTI items, may help students become more reflective in their learning habits and hence mare adantable tn the world of work.     

Ethnic diversity and the nation state: from centralization in the age of nationalism to decentralization amidst globalization

The cause of conflict in multiethnic and multi-religious societies is not diversity in and of itself. Rather, it is one’s attitude towards diversity. Do we share political power and economic development with the regions and minority communities? Do we recognize the cultural identities of the minorities? This requires that the nation-state building process be imagined in more inclusive civic territorial lines rather than exclusive ethnic-genealogical lines. With the above as a backdrop, the article explores nation-state building and the related pursuit of economic growth in Malaysia and some parts of Southeast Asia. The article ends with a call for decentralizing power and resources, and for more research on local level governance and democracy.     

Investigating the effectiveness of three-dimensionally printed anatomical models compared with plastinated human specimens in learning cardiac and neck anatomy: A randomized crossover study

Three-dimensional printing (3DP) technology has been increasingly applied in health profession education. Yet, 3DP anatomical models compared with the plastinated specimens as learning scaffolds are unclear. A randomized-controlled crossover study was used to evaluate the objective outcomes of 3DP models compared with the plastinated specimens through an introductory lecture and team study for learning relatively simple (cardiac) and complex (neck) anatomies. Given the novel multimaterial and multicolored 3DP models are replicas of the plastinated specimens, it is hypothesized that 3DP models have the same educational benefits to plastinated specimens. This study was conducted in two phases in which participants were randomly assigned to 3DP (n = 31) and plastinated cardiac groups (n = 32) in the first phase, whereas same groups (3DP, n = 15; plastinated, n = 18) used switched materials in the second phase for learning neck anatomy. The pretest, educational activities and posttest were conducted for each phase. Miller's framework was used to assess the cognitive outcomes. There was a significant improvement in students' baseline knowledge by 29.7% and 31.3% for Phase 1; 31.7% and 31.3% for Phase 2 plastinated and 3DP models. Posttest scores for cardiac (plastinated, 3DP mean ± SD: 57.0 ± 13.3 and 60.8 ± 13.6, P = 0.27) and neck (70.3 ± 15.6 and 68.3 ± 9.9, P = 0.68) phases showed no significant difference. In addition, no difference observed when cognitive domains compared for both cases. These results reflect that introductory lecture plus either the plastinated or 3DP modes were effective for learning cardiac and neck anatomy.     

Inhibitory activities of microalgal extracts against Epstein-Barr virus DNA release from lymphoblastoid cells

This study aimed to assess the inhibitory activities of methanol extracts from the microalgae Ankistrodesmus convolutus, Synechococcus elongatus, and Spirulina platensis against Epstein-Barr virus (EBV) in three Burkitt's lymphoma (BL) cell lines, namely Akata, B95-8, and P3HR-1. The antiviral activity was assessed by quantifying the cell-free EBV DNA using real-time polymerase chain reaction (PCR) technique. The methanol extracts from Ankistrodesmus convolutus and Synechococcus elongatus displayed low cytotoxicity and potent effect in reducing cell-free EBV DNA (EC(50)<0.01 μg/ml) with a high therapeutic index (>28000). After fractionation by column chromatography, the fraction from Synechococcus elongatus (SEF1) reduced the cell-free EBV DNA most effectively (EC(50)=2.9 μg/ml, therapeutic index>69). Upon further fractionation by high performance liquid chromatography (HPLC), the sub-fraction SEF1'a was most active in reducing the cell-free EBV DNA (EC(50)=1.38 μg/ml, therapeutic index>14.5). This study suggests that microalgae could be a potential source of antiviral compounds that can be used against EBV.     

PUBLIC EDUCATION ABOUT NORMAL FORGETFULNESS AND DEMENTIA: EFFECTIVENESS OF A SYSTEMATICALLY DEVELOPED INFORMATION BROCHURE

Earlier research revealed that many elderly people in The Netherlands are worried about their forgetfulness and are afraid of incipient dementia. Until now, no systematic research has been conducted on the effects of public education about normal forgetfulness and dementia, and therefore an information brochure was developed and evaluated. The main function of this brochure was to reassure people who were unnecessarily worrying about possible dementia. A second function was to motivate people to seek professional help when this seemed advisable. Sixty‐two percent of all respondents (307 of 400) who had been worried about dementia before reading the brochure said that their anxiety decreased or disappeared after reading it; approximately 3% became more worried after reading the brochure. A cognitive test battery was administered to 104 people to determine whether their increased or decreased anxiety was justified. Thirty subjects had low test scores, yet 16 of these subjects had been reassured by the brochure that their forgetfulness was nothing to worry about. This group was characterized as experiencing fewer problems in daily life as a result of their forgetfulness and as having a higher internal locus of control. Seventy‐four subjects performed well on the cognitive tests, yet 18 of them had remained worried about their forgetfulness after reading the brochure. Anxiety for heredity of dementia could be a possible explanation for their persistent concern. Although many people were reassured by the brochure, the results also show that it is important to evaluate information brochures used as intervention instruments—in one third of the present sample, the effects of the brochure were not in accordance with its goal.     

Framework for educational robotics: a multiphase approach to enhance user learning in a competitive arena

Educational robotics involves using robots as an educational tool to provide a long term, and progressive learning activity, to cater to different age group. The current concern is that, using robots in education should not be an instance of a one-off project for the sole purpose of participating in a competitive event. Instead, it should be a sustainable long-term progression spanning the primary school to pre-university level. This article presents a framework for robotics using a multiphase approach to enhance user learning in a competitive arena.