39,139 research outputs found

    The role of axonopathy in Parkinson\u27s disease

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    Everyday classroom teaching practices for self-regulated learning

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    This study investigated everyday classroom teaching that provides opportunities for young adolescent students to self-regulate their learning. Evidence drawn from literature in the field of self-regulated learning (SRL) underpins this investigation that was focused on the transition years from primary school to secondary school. Research was conducted in Australia as dual case studies, with data collected through semi-structured interviews and classroom observations from eight teacher participants. The data were analysed through the lens of a conceptual framework that aligns the findings with the fundamentals for SRL. The four themes generated are best understood as teaching approaches that describe how teachers within social learning environments connect the goal orientated learning with purposeful engagement, facilitate the activation of thinking strategies through instructional support, and diversify learning opportunities that enable an expectation of success. The findings are illustrated by classroom examples of the core practices that influence students' self-regulatory capacity. An outcome of this research is the SRL model that offers a vision for pedagogy to support teacher professional dialogue and learning, and a practical decision-making tool intended to guide teachers to reflect, analyse and tailor practices for their everyday classroom teaching. The paper concludes with some suggestions that provide scope for future research

    Message from the Editors

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    Mapping Mass in the Local Universe

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    We only see a small fraction of the matter in the universe, but the rest gives itself away by the impact of its gravity. Peculiar velocities have the potential to be a powerful tool to trace this matter however previous peculiar velocity surveys have struggled to meet their potential because of the large errors on individual measurements, poor statistics and uneven sky coverage. The 2MASS Tully-Fisher (2MTF) survey will make use of existing high quality rotations widths, new HI widths and 2MASS (2 Micron All-Sky Survey) photometry to measure Tully-Fisher distances/peculiar velocities for all bright inclined spirals in the 2MASS redshift survey (2MRS). This survey based on the 2MASS galaxy catalog will provide a qualitatively better sample. It will provide significant improvements in sky coverage especially near the plane of our Galaxy which crosses the poorly understood "great attractor" region. I will give a progress report on the 2MTF survey including a look at over 300 hours of HI observations from the Green Bank Telescope (GBT) and a report on ongoing southern hemisphere observations with the Parke s Radio Telescope. The new spiral I-band field (SFI++) sample is currently the best available peculiar velocity survey for use in the local universe. I will also report on some preliminary results from this sample.Comment: To appear in ASP Conference Series as proceedings of NRAO 50th Anniversary Symposium, "Frontiers of Astrophysics", June 18-21, 2007, A. Bridle, J. Condon and G. Hunt eds. 10 pages including 4 figure

    A Zoo of Galaxies

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    We live in a universe filled with galaxies with an amazing variety of sizes and shapes. One of the biggest challenges for astronomers working in this field is to understand how all these types relate to each other in the background of an expanding universe. Modern astronomical surveys (like the Sloan Digital Sky Survey) have revolutionised this field of astronomy, by providing vast numbers of galaxies to study. The sheer size of the these databases made traditional visual classification of the types galaxies impossible and in 2007 inspired the Galaxy Zoo project (www.galaxyzoo.org); starting the largest ever scientific collaboration by asking members of the public to help classify galaxies by type and shape. Galaxy Zoo has since shown itself, in a series of now more than 30 scientific papers, to be a fantastic database for the study of galaxy evolution. In this Invited Discourse I spoke a little about the historical background of our understanding of what galaxies are, of galaxy classification, about our modern view of galaxies in the era of large surveys. I finish with showcasing some of the contributions galaxy classifications from the Galaxy Zoo project are making to our understanding of galaxy evolution. This publication has been made possible by the participation of more than 200,000 volunteers in the Galaxy Zoo project. Their contributions are individually acknowledged at http://www.galaxyzoo.org/volunteers. KLM acknowledges funding from the Peter and Patricia Gruber Foundation as the 2008 Peter and Patricia Gruber Foundation IAU Fellow, and from a 2010 Leverhulme Trust Early Career Fellowship, as well as support from the Royal Astronomical Society to attend the 28th GA of the IAU.Comment: 15 pages, 8 figures. Proceedings of Invited Discourse at the 27th IAU General Assembly, in Beijing, China, August 2012. To appear in Highlights of Astronomy, Volume 1
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