836 resultados para Case-based reasoning


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Computer games have become a commonplace but engaging activity among students. They enjoy playing computer games as they can perform larger-than-life activities virtually such as jumping from great heights, flying planes, and racing cars; actions that are otherwise not possible in real life. Computer games also offer user interactivity which gives them a certain appeal. Considering this appeal, educators should consider integrating computer games into student learning and to encourage students to author computer games of their own. It is thought that students can be engaged in learning by authoring and using computer games and can also gain essential skills such as collaboration, teamwork, problem solving and deductive reasoning. The research in this study revolves around building student engagement through the task of authoring computer games. The study aims to demonstrate how the creation and sharing of student-authored educational games might facilitate student engagement and how ICT (information and communication technology) plays a supportive role in student learning. Results from this study may lead to the broader integration of computer games into student learning and contribute to similar studies. In this qualitative case study, based in a state school in a low socio-economic area west of Brisbane, Australia, students were selected in both junior and senior secondary classes who have authored computer games as a part of their ICT learning. Senior secondary students (Year 12 ICT) were given the task of programming the games, which were to be based on Mathematics learning topics while the junior secondary students (Year 8 ICT) were given the task of creating multimedia elements for the games. A Mathematics teacher volunteered to assist in the project and provided guidance on the inclusion of suitable Mathematics curricular content into these computer games. The student-authored computer games were then used to support another group of Year 8 Mathematics students to learn the topics of Area, Volume and Time. Data was collected through interviews, classroom observations and artefacts. The teacher researcher, acting in the role of ICT teacher, coordinated with the students and the Mathematics teacher to conduct this study. Instrumental case study was applied as research methodology and Third Generation Activity Theory served as theoretical framework for this study. Data was analysed adopting qualitative coding procedures. Findings of this study indicate that having students author and play computer games promoted student engagement and that ICT played a supportive role in learning and allowed students to gain certain essential skills. Although this study will suggest integrating computer games to support classroom learning, it cannot be presumed that computer games are an immediate solution for promoting student engagement.

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At a time when global consumption and production levels are 25 percent higher than the Earth’s sustainable carrying capacity, there are worldwide calls to find ways to sustain the Earth for this and future generations. A central premise of this study is that education systems have an obligation to participate in this move towards sustainability and can respond by embedding education for sustainability into curricula. This study took early childhood education as its focus due to the teacherresearcher’s own concerns about the state of the planet, coupled with early childhood education’s established traditions of nature-based and child-centred pedagogy. The study explored the experiences of a class of kindergarten children as they undertook a Project Approach to learning about environmental sustainability. The Project Approach is an adaptation of Chard’s work which is situated within a constructivist theoretical framework (Chard, 2011). The Project Approach involves in-depth investigations around an identified topic of interest. It has three phases: introductory, synthesising and culminating phase. The study also investigated the learning journey of the classroom teacher/researcher who broadened her long-held co-constructivist teaching approaches to include transformative practices in order to facilitate curriculum which embedded education for sustainability. While coconstructivist approaches focus on the co-construction of knowledge, transformative practices are concerned with creating change. An action research case study was conducted. This involved twenty-two children who attended an Australian kindergarten. Data were collected and analysed over a seven week period. The study found that young children can be change agents for sustainability when a Project Approach is broadened to include transformative practices. The study also found that the child participants were able to think critically about environmental and sustainability issues, were able to create change in their local contexts, and took on the role of educators to influence others’ environmental behaviours. Another finding was that the teacher-researcher’s participation in the study caused a transformation of both her teaching philosophy and the culture at the kindergarten. An important outcome of the study was the development of a new curriculum model that integrates and has applicability for curriculum development and teacher practice.

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I believe that studies of men's gendered experiences of information systems are needed. In order to support this claim, I introduce the area of Masculinity Studies to Information Systems research and, using this, present an exploratory analysis of an internet dating website for gay men – Gaydar. The information system, which forms part of the Gaydar community, is shown to shape, and be shaped by the members as they accept and challenge aspects of it as related to their identities. In doing this, I show how the intertwined processes of information systems development and use contribute to the creation of diverse interpretations of masculinity within a group of men. In sum, my analysis highlights different kinds of men and different versions of masculinity that can sometimes be associated with different experiences of information systems. The implications of this work centre on the need to expand our knowledge of men's gendered experiences with information systems, to reflect upon processes of technology facilitated categorisation and to consider the influences that contribute to the roll out of particular software features along with the underlying rationales for market segmentation in the software and software-based services industries.

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The purpose of this article is to offer a critical discussion about the “practice” lens and its weaknesses in addressing acting and knowledge & competence development in the context of temporary and project-based organizing. I demonstrate that “practice turn” and “phronetic proposal” are dual and opposite perspectives within the “practice” world, none of them being fully relevant to grasp project organizing and that each of them maintain the opposition between the “observer” and the “natives “of the practices. I suggest an alternate style of reasoning in order to address the dissatisfaction in face of problems, antinomies, perplexities and contradictions generated by the dichotomous thinking: a liberation praxeology rooted in Aristotle philosophy aiming, through praxis & phronesis and practical acquired experience & perfecting actualization, at reconciling facts & values and means & ends, and Ethics & Politics in the quest for human happiness and social good through project organizing.

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Pacific Rim Real Estate Society has conducted four property case competitions from 2009 to 2012. The competition provides opportunities for undergraduate students to present their proposal on a given case study. All students were locked down with their four team members for five hours without external help to ensure a level playing field across participants. Students prepared their presentation and defended their arguments in front of experts in property industry and academia. The aim of this paper is reflecting on the feedback received from stakeholders involved in the case competition. Besides exploring what students have gained from the competitions, this paper provides an insight on the opportunities and challenges for the new format of competition to be introduced in 2013. Over the last four competitions, there were three universities participated in all the four consecutive events, four universities partook in two events and another four universities only competed once. Some universities had a great advantage by having previous experiences by participating in similar international business competitions. Findings show that the students have benefited greatly from the event including improving their ability in problem solving and other non-technical skills. Despite the aforementioned benefits, the PRRES closed-book case competition is proven not viable thus future competition needs to minimise the travel and logistic cost.

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The thesis develops an Organisational Culture (OC) based framework for potentially improving the current practice of the infrastructure project selection process (PSP) in Indonesia, particularly for regional road projects. This framework is developed to address the suggestion emanating from the research that there is a need for strengthening the relevant organisational culture dimensions and making changes to current organisational culture profiles to support the effectiveness of the decision-making process of the current PSP. The findings not only benefit existing knowledge but also provide practical contributions for those decision-makers within the Indonesian regional government that are involved in PSP, i.e. by raising the awareness of the influence and the role of organisational culture.

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This paper reports on an adaptation of Callon and Law’s (1995) hybrid collectif derived from research conducted on the usage of mobile phones and internet technologies among the iTadian indigenous people of the Cordillera region, northern Philippines. Results brings to light an indigenous digital collectif—an emergent effect from the translation of both human and non-human heterogeneous actors as well as pre-existent networks, such as: traditional knowledge and practices, kinship relations, the traditional exchange of goods, modern academic requisites, and advocacies for indigenous rights. This is evinced by the iTadian’s enrolment of internet and mobile phone technologies. Examples include: treating these technologies as an efficient communicative tool, an indicator of well-being, and a portable extension of affective human relationships. Alternatively, counter-enrolment strategies are also at play, which include: establishing rules of acceptable use on SMS texting and internet access based on traditional notions of discretion, privacy, and the customary treatment of the dead. Within the boundaries of this digital collectif reveal imbrications of pre-existing networks like traditional customs, the kinship system across geophysical boundaries, the traditional exchange of mail and other goods, and the advocacy of indigenous rights. These imbrications show that the iTadian digital collectif fluently configures itself to a variety of networked ontologies without losing its character.

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In contemporary Western society, including Australia, professional mediation practice has developed with a specifically defined foundational approach - a problem-solving, facilitative method, in which the mediator's intervention is centred on providing the parties with a series of formal steps to assist their communication and to steer them towards a self-determined and mutually agreeable resolution of the issues in dispute. Facilitative mediation developed, in part, as a response to the adversarial system of law and justice. In that system the parties are said to lose control of their dispute, and a decision is imposed on them which invariably puts one party in a losing position. Facilitative mediation has offered an alternative to this inevitable outcome by offering the parties a democratic, cost-effective, party-centred, empowering, interests-based and principled option for resolving their dispute.

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AIM: Zhi Zhu Wan (ZZW) is a classical Chinese medical formulation used for the treatment of functional dyspepsia that attributed to Spleen-deficiency Syndrome. ZZW contains Atractylodes Rhizome and Fructus Citrus Immaturus, the later originates from both Citrus aurantium L. (BZZW) and Citrus sinensis Osbeck (RZZW). The present study is designed to elucidate disparities in the clinical efficacy of two ZZW varieties based on the pharmacokinetics of naringenin and hesperetin. MEHTOD: After oral administration of ZZWs, blood sample was collected from healthy volunteers at designed time points. Naringenin and hesperetin were detected in plasma by RP-HPLC, pharmacokinetic parameters were processed using mode-independent methods with WINNONLIN. RESULTS: After oral administration of BZZW, both naringenin and hesperetin were detected in plasma, and demonstrated similar pharmacokinetic parameters. Ka was 0.384+/-0.165 and 0.401+/-0.159, T(1/2(ke))(h) was 5.491+/-3.926 and 5.824+/-3.067, the AUC (mg/Lh) was 34.886+/-22.199 and 39.407+/-19.535 for naringenin and hesperetin, respectively. However, in the case of RZZW, only hesperetin was found in plasma, but the pharmacokinetic properties for hesperetin in RZZW was different from that in BZZW. T(max) for hesperetin in RZZW is about 8.515h, and its C(max) is much larger than that of BZZW. Moreover, it was eliminated slowly as it possessed a much larger AUC value. CONCLUSION: The distinct therapeutic orientations of the Chinese medical formula ZZWs with different Fructus Citrus Immaturus could be elucidated based on the pharmacokinetic parameters of constituents after oral administration.

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BACKGROUND AND AIMS: Crohn's disease (CD) is an inflammatory bowel disease (IBD) caused by a combination of genetic, clinical, and environmental factors. Identification of CD patients at high risk of requiring surgery may assist clinicians to decide on a top-down or step-up treatment approach. METHODS: We conducted a retrospective case-control analysis of a population-based cohort of 503 CD patients. A regression-based data reduction approach was used to systematically analyse 63 genomic, clinical and environmental factors for association with IBD-related surgery as the primary outcome variable. RESULTS: A multi-factor model was identified that yielded the highest predictive accuracy for need for surgery. The factors included in the model were the NOD2 genotype (OR = 1.607, P = 2.3 × 10(-5)), having ever had perianal disease (OR = 2.847, P = 4 × 10(-6)), being post-diagnosis smokers (OR = 6.312, P = 7.4 × 10(-3)), being an ex-smoker at diagnosis (OR = 2.405, P = 1.1 × 10(-3)) and age (OR = 1.012, P = 4.4 × 10(-3)). Diagnostic testing for this multi-factor model produced an area under the curve of 0.681 (P = 1 × 10(-4)) and an odds ratio of 3.169, (95 % CI P = 1 × 10(-4)) which was higher than any factor considered independently. CONCLUSIONS: The results of this study require validation in other populations but represent a step forward in the development of more accurate prognostic tests for clinicians to prescribe the most optimal treatment approach for complicated CD patients.

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Knowledge based urban development (KBUD) is seen as a new paradigm in urban planning and development which is now being implemented across the globe in order to increase the competitiveness of cities and regions. The KBUD concept has been widely applied in western and more developed countries over the last decade, and many have been proven successful. This paper, however, aims to provide an overview of the KBUD exercise in a context of a non western country scenario—Malaysia. Literature suggests that the urban development process in non western countries is different and very much focusing on physical elements. Whether this is the case or otherwise, this paper scrutinises the project of Multimedia Super Corridor (MSC), Malaysia, which is regarded as one of the first large scale manifestations of KBUD exercise in South East Asia. Based on development policies analysis and results of the interviews with the major stakeholders, this paper investigates the application of KBUD concept within the Malaysian context by examining the development and evolution of the city of Cyberjaya—the leading intelligent city of the MSC project. In the light of the literature and case findings, the paper provides recommendations and lessons learned, on the orchestration of KBUD, for other non western cities and regions that are working hard to develop KBUD strategies, strengthening their sustainable socio-spatial policies and seeking a global recognition.

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Tanzania has a rich and diverse cultural history based on community cultural life. However, at present, young people have limited opportunity to exploit this richness of creative expressions and engage in creative jobs as their future career. Hence, the significant challenge remains: how to integrate Intangible cultural heritage elements and learning strategy as a means of promoting creative jobs for youth. This paper presents a case study on 'Strategies for youth employment in Tanzania: A creative industries approach'. The case study employed mixed methods incorporating questionnaires, interviews and focus groups and was held in Dar-Es-Salaam, Mwanza, Dodoma, Lindi and Morogoro from July to October, 2012. This paper discusses some of the issues and argues that there is no virtual utilization of the intangible cultural heritage knowledge and skills in 'putting education to work' (UNESCO, 2012) for the better prospects of youth. Although the discussion is specific to Tanzania, the case may also apply to other developing countries.

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China is experiencing rapid progress in industrialization, with its own rationale toward industrial land development based on a deliberate change from an extensive to intensive form of urban land use. One result has been concerted attempts by local government to attract foreign investment by a low industrial land price strategy, which has resulted in a disproportionally large amount of industrial land within the total urban land use structure at the expense of the urban sprawl of many cities. This paper first examines “Comparable Benchmark Price as Residential land use” (CBPR) as the theoretical basis of the low industrial land price phenomenon. Empirical findings are presented from a case study based on data from Jinyun County, China. These data are analyzed to reveal the rationale of industrial land price from 2000 to 2010 concerning the CBPR model. We then explore the causes of low industrial land prices in the form of a “Centipede Game Model”, involving two neighborhood regions as “major players” to make a set of moves (or strategies). When one of the players unilaterally reduces the land price to attract investment with the aim to maximize profits arising from the revenues generated from foreign investment and land premiums, a two-player price war begins in the form of a dynamic game, the effect of which is to produce a downward spiral of prices. In this context, the paradox of maximizing profits for each of the two players are not accomplished due to the inter-regional competition of attracted investment leading to a lose-lose situation for both sides’ in competing for land premium revenues. A short-term solution to the problem is offered involving the establishment of inter-regional cooperative partnerships. For the longer term, however, a comprehensive reform of the local financial system, more adroit regional planning and an improved means of evaluating government performance is needed to ensure the government's role in securing pubic goods is not abandoned in favor of one solely concerned with revenue generation.

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Migraine is a painful and debilitating disorder with a significant genetic component. Steroid hormones, in particular estrogen, have long been considered to play a role in migraine, as variations in hormone levels are associated with migraine onset in many sufferers of the disorder. Steroid hormones mediate their activity via hormone receptors, which have a wide tissue distribution. Estrogen receptors have been localized to the brain in regions considered to be involved in migraine pathogenesis. Hence it is possible that genetic variation in the estrogen receptor gene may play a role in migraine susceptibility. This study thus examined the estrogen receptor 1 (ESRα) gene for a potential role in migraine pathogenesis and susceptibility. A population-based cohort of 224 migraine sufferers and 224 matched controls were genotyped for the G594A polymorphism located in exon 8 of the ESR1 gene. Statistical analysis indicated a significant difference between migraineurs and non-migraineurs in both the allele frequencies (P=0.003) and genotype distributions (P=0.008) in this sample. An independent follow-up study was then undertaken using this marker in an additional population-based cohort of 260 migraine sufferers and 260 matched controls. This resulted in a significant association between the two groups with regard to allele frequencies (P=8×10−6) and genotype distributions (P=4×10−5). Our findings support the hypothesis that genetic variation in hormone receptors, in particular the ESR1 gene, may play a role in migraine.

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Undergraduate research experiences are an increasing component of nursing and midwifery degrees. The Summer Research Scholarship Programme (SRSP) is a tertiary education initiative in Australia to provide an intensive undergraduate research experience. Between 2009 and 2010, six students and four academic faculty mentors in School of Nursing and Midwifery participated in an inaugural SRSP. This study explores the experiences of both students and faculty mentors to determine how this undergraduate research experience impacted student learning and interest in research. A qualitative case study approach was used to explore the research experiences of undergraduate student and faculty participants in an inaugural undergraduate research programme. Based on the results of two surveys four main themes were identified: (1) acquisition of research skills, (2) expectations, (3) academic engagement, and (4) continued interest in research. An intensive undergraduate research experience is a valuable component of student learning that has the capacity to contribute to immediate and longer-term learning and research outcomes.