283 research outputs found
Student participation in the design of learning and teaching: Disentangling the terminology and approaches
Background: Students are ever more involved in the design of educational practices, which is reflected in the growing body of literature about approaches to student participation. Similarities and differences between these approaches often remain vague since the terms are used interchangeably. This confusing and fragmented body of literature hampers our understanding the process and outcomes of student participation and choosing the most suitable approach for it. Method: We identified the three most frequently used terms related to the design of learning and teachingâdesign-based research (DBR), participatory design (PD), and co-creationâand disentangled the terminology by focusing on relevant definitions, aims, involvement of students, outcomes, and related terminology. Results: Differences between the approaches to student participation can be found in the degree to which students are the central actors and the degree to which the design is informed by educational theory. Conclusion: It is important to align the level of student participation with the purpose of the approach
Galaxy And Mass Assembly: The xSAGA Galaxy Complement in Nearby Galaxy Groups
Groups of galaxies are the intermediate density environment in which much of
the evolution of galaxies is thought to take place. In spectroscopic redshift
surveys, one can identify these as close spatial redshift associations.
However, spectroscopic surveys will always be more limited in luminosity and
completeness than imaging ones. Here we combine the Galaxy And Mass Assembly
group catalogue with the extended Satellites Around Galactic Analogues (xSAGA)
catalogue of Machine Learning identified low-redshift satellite galaxies. We
find 1825 xSAGA galaxies within the bounds of the GAMA equatorial fields (m <
21), 1562 of which could have a counterpart in the GAMA spectroscopic catalogue
(m < 19.8). Of these, 1326 do have a GAMA counterpart with 974 below z=0.03
(true positives) and 352 above (false positives). By crosscorrelating the GAMA
group catalogue with the xSAGA catalogue, we can extend and characterize the
satellite content of GAMA galaxy groups. We find that most groups have <5 xSAGA
galaxies associated with them but richer groups may have more. Each additional
xSAGA galaxy contributes only a small fraction of the group's total stellar
mass (<<10%). Selecting GAMA groups that resemble the Milky Way halo, with a
few (<4) bright galaxies, we find xSAGA can add a magnitude fainter sources to
a group and that the Local Group does not stand out in the number of bright
satellites. We explore the quiescent fraction of xSAGA galaxies in GAMA groups
and find a good agreement with the literature.Comment: 11 pages, 13 Figures, 2 Tables, accepted by MNRA
Towards a Theoretical Framework for Understanding the Development of Media Related Needs
The question of why people select and prefer particular media activities has led to the development of a number of âneedsâ approaches to media use. Whilst some frameworks have been developed within the context of media use (e.g. uses and gratifications), others (e.g. Tamborini et al, 2011) look to combine general theories of basic human needs, such as Self-Determination Theory (Deci &Ryan, 1985) with hedonic gratifications. Drawing on these approaches, a framework is proposed that maps findings from childrenâs and adolescentsâ media use to four basic human needs: competence, autonomy, relatedness and hedonic needs. The current paper argues that a basic needs approach is useful for understanding how media-related needs emerge and are expressed through development
âItâs like my life but more, and better!â - Playing with the Cathaby Shark Girls: MMORPGs, young people and fantasy-based social play
This article is available open access through the publisherâs website at the link below. Copyright @ 2011 A B Academic Publishers.Digital technology has opened up a range of new on-line leisure spaces for young people. Despite their popularity, on-line games and Massive Multiplayer Online Role Playing Games in particular are still a comparatively under-researched area in the fields of both Education and more broadly Youth Studies. Drawing on a Five year ethnographic study, this paper considers the ways that young people use the virtual spaces offered by MMORPGs. This paper suggests that MMORPGs represent significant arenas within which young people act out a range of social narratives through gaming. It argues that MMORPG have become important fantasy spaces which offer young people possibilities to engage in what were formally material practices. Although this form of play is grounded in the everyday it also extends material practices and offers new and unique forms of symbolic experimentation, thus I argue that game-play narratives cannot be divorced from the everyday lives of their participants
Population policies and education: exploring the contradictions of neo-liberal globalisation
The world is increasingly characterised by profound income, health and social inequalities (Appadurai, 2000). In recent decades development initiatives aimed at reducing these inequalities have been situated in a context of increasing globalisation with a dominant neo-liberal economic orthodoxy. This paper argues that neo-liberal globalisation contains inherent contradictions regarding choice and uniformity. This is illustrated in this paper through an exploration of the impact of neo-liberal globalisation on population policies and programmes. The dominant neo-liberal economic ideology that has influenced development over the last few decades has often led to alternative global visions being overlooked. Many current population and development debates are characterised by polarised arguments with strongly opposing aims and views. This raises the challenge of finding alternatives situated in more middle ground that both identify and promote the socially positive elements of neo-liberalism and state intervention, but also to limit their worst excesses within the population field and more broadly. This paper concludes with a discussion outling the positive nature of middle ground and other possible alternatives
Stellar archeology: a cosmological view of dwarf galaxies
The origin of dwarf spheroidal galaxies (dSphs) is investigated in a global
cosmological context by simultaneously following the evolution of the Milky Way
Galaxy and its dwarf satellites. This approach enable to study the formation of
dSphs in their proper birth environment and to reconstruct their own merging
histories. The proposed picture simultaneously accounts for several dSph and
Milky Way properties, including the Metallicity Distribution Functions of
metal-poor stars. The observed features are interpreted in terms of physical
processes acting at high redshifts.Comment: 8 pages, 5 figures; "Dwarf Galaxies: Keys to Galaxy Formation and
Evolution" JENAM 2010 Symposium S
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