980 resultados para Science studies


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Microgravity fluid physics is an important part of microgravity sciences, which consists of simple fluids of many new systems, gas-liquid two-phase flow and heat transfer, and complex fluid mechanics. In addition to the importance of itself in sciences and applications, microgravity fluid physics closely relates to microgravity combustion, space biotechnology and space materials science, and promotes the developments of interdisciplinary fields. Many space microgravity experiments have been per- formed on board the recoverable satellites and space ships of China and pushed the rapid development of microgravity sciences in China. In the present paper, space experimental studies and the main re- sults of the microgravity fluid science in China in the last 10 years or so are introduced briefly.

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The purpose of the paper is to demonstrate how a research diary methodology, designed to analyse A-level and GNVQ classrooms, can be a powerful tool for examining pedagogy and quality of learning at the level of case study. Two subject areas, science and business studies, are presented as cases. Twelve teachers and thirty-four students were studied over a four-week period in May 1997 and contrasts were drawn between lessons from three A-level physics teachers/three Advanced GNVQ science teachers and two A-level business/economics teachers/four Advanced GNVQ business teachers. Lessons were analysed within a cognitive framework which distinguishes between conceptual and procedural learning and emphasizes the importance of metacognition and epistemological beliefs. Two dimensions of lessons were identified: pedagogical activities (e.g. teacher-led explanation, teacher-led guidance on a task, question/answer sessions, group discussions, working with IT) and cognitive outcomes (e.g. structuring and memorizing facts, understanding concepts and arguments, critical thinking, problem-solving, learning core skills, identifying values). Immediately after each lesson, teachers and students (three per class) completed structured research diaries with respect to the above dimensions. Data from the diaries reveal general and unique features of the lessons. Time-ofyear effects were evident (examinations pending in May), particularly in A-level classrooms. Students in business studies classes reported a wider range of learning activities and greater variety in cognitive outcomes than did students in science classes. Science students self-rating of their ability to manage and direct their own learning was generally low. The phenomenological aspects of the classrooms were consistently linked to teachers' lesson plans and what their teaching objectives were for those particular students at that particular time of the year.

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This report provides case studies of Early Warning Systems (EWSs) and risk assessments encompassing three main hazard types: drought; flood and cyclone. The case studies are taken from ten countries across three continents (focusing on Africa, South Asia and the Caribbean). The case studies have been developed to assist the UK Department for International Development (DFID) to prioritise areas for Early Warning System (EWS) related research under their ‘Science for Humanitarian Emergencies and Resilience’ (SHEAR) programme. The aim of these case studies is to ensure that DFID SHEAR research is informed by the views of Non-Governmental Organisations (NGOs) and communities engaged with Early Warning Systems and risk assessments (including community-based Early Warning Systems). The case studies highlight a number of challenges facing Early Warning Systems (EWSs). These challenges relate to financing; integration; responsibilities; community interpretation; politics; dissemination; accuracy; capacity and focus. The case studies summarise a number of priority areas for EWS related research: • Priority 1: Contextualising and localising early warning information • Priority 2: Climate proofing current EWSs • Priority 3: How best to sustain effective EWSs between hazard events? • Priority 4: Optimising the dissemination of risk and warning information • Priority 5: Governance and financing of EWSs • Priority 6: How to support EWSs under challenging circumstances • Priority 7: Improving EWSs through monitoring and evaluating the impact and effectiveness of those systems

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The Gold Standard for education research promotes randomized controlled trials (RCTs) that can produce generalizable knowledge claims across similar problems and situations. Unfortunately, the Gold Standard does not fully recognize the need for developmental research to better understand the problem space, formulate theory and approaches to teaching and learning, and formulate and pursue associated research questions. This developmental research has been a precursor to the development of interventions together with the necessary instrumentation and technologies required to fully investigate these through the more formal evaluative processes imagined by the Gold Standard. This chapter focuses on longitudinal studies that cover a continuum from such developmental research to research that uses control-experimental features to evaluate interventions. These studies attend to a set of issues dealing with  developmental progressions and learning trajectories that require  investigation over an extended period of time. It will be argued that
these longitudinal studies of a variety of methodological types represent quality research in that rigorous design and implementation produce  evidence-based claims. The chapter examines the nature of the relationship between evidence and claims in these studies, to show the possibility of building in control features every bit as strong as those in classic Gold Standard designs. Further, it will be argued that, given the complexity of learning pathways, a simplistic interpretation of RCTs conducted over the shorter term can be misleading in terms of both internal and external validity claims.

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This thesis offers an account of the history and effects of three curriculum projects sponsored by the Australian Human Rights Commission between 1983 and 1986. Each project attempted to improve observance of human rights in and through Australian schools through participatory research (or critical educational science). That is, the research included, as a conscious feature, the effort to develop new forms of curriculum work which more adequately respect the personal and professional rights of teachers, especially their entitlement as persons and professionals to participate in planning, conducting and controlling the curriculum development, evaluation and implementation that constitutes their work. In more specific terms, the Australian Human Rights Commission's three curriculum projects represented an attempt to improve the practice and theory of human rights education by engaging teachers in the practical work of evaluating, researching, and developing a human rights curriculum. While the account of the Australian Human Rights Commission curriculum project is substantially an account of teachers1 work, it is a story which ranges well beyond the boundaries of schools and classrooms. It encompasses a history of episodes and events which illustrate how educational initiatives and their fate will often have to set within the broad framework of political, social, and cultural contestation if they are to be understood. More exactly, although the Human Rights Commission's work with schools was instrumental in showing how teachers might contribute to the challenging task of improving human rights education, the project was brought to a premature halt during the debate in the Australian Senate on the Bill of Rights in late 1985 and early 1986. At this point in time, the Government was confronted with such opposition from the Liberal/National Party Coalition that it was obliged to withdraw its Bill of Rights Legislation, close down the original Human Rights Commission, and abandon the attempt to develop a nationwide program in human rights education. The research presents an explanation of why it has been difficult for the Australian Government to live up to its international obligations to improve respect for human rights through education. More positively, however, it shows how human rights education, human rights related areas of education, and social education might be transformed if teachers (and other members of schools communities) were given opportunities to contribute to that task. Such opportunities, moreover, also represent what might be called the practice of democracy in everyday life. They thus exemplify, as well as prefigure, what it might mean to live in a more authentically democratic society.