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Search Results: 1 - 10 of 246 matches for " Deirdre Beecher "
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Upper Bounds for Betti Numbers of Multigraded Modules
Amanda Beecher
Mathematics , 2006,
Abstract: This paper gives a sharp upper bound for the Betti numbers of a finitely generated multigraded $R$-module, where $R=\Bbbk [x_{1},...,x_{m}]$ is the polynomial ring over a field $\Bbbk$ in $m$ variables. The bound is given in terms of the rank and the first two Betti numbers of the module. An example is given which achieves these bounds simultaneously in each homological degree. Using Alexander duality, a bound is established for the total multigraded Bass numbers of a finite multigraded module in terms of the first two total multigraded Bass numbers.
Free modules of a multigraded resolution from simplicial complexes
Amanda Beecher
Mathematics , 2009,
Abstract: Let $R=\Bbbk [x_1,..., x_m]$ be a polynomial ring in $m$ variables over $\Bbbk$ with the standard $\mathbb{Z}^m$ grading and $L$ a multigraded Noetherian $R$-module. When $\Bbbk$ is a field, Tchernev has an explicit construction of a multigraded free resolution called the T-resolution of $L$ over $R$. Despite the explicit canonical description, this method uses linear algebraic methods, which makes the structure hard to understand. This paper gives a combinatorial description for the free modules, making the T-resolution clearer. In doing so, we must introduce an ordering on the elements. This ordering identifies a canonical generating set for the free modules. This combinatorial construction additionally allows us to define the free modules over $\mathbb{Z}$ instead of a field. Moreover, this construction gives a combinatorial description for one component of the differential. An example is computed in the first section to illustrate this new approach.
Presenting evidence-based health information for people with multiple sclerosis: the IN-DEEP project protocol
Sophie Hill, Graziella Filippini, Anneliese Synnot, Michael Summers, Deirdre Beecher, Cinzia Colombo, Paola Mosconi, Mario A Battaglia, Sue Shapland, Richard H Osborne, Melanie Hawkins
BMC Medical Informatics and Decision Making , 2012, DOI: 10.1186/1472-6947-12-20
Abstract: This project is an Australian-Italian collaboration between researchers, MS societies and people with MS. Using a four-stage mixed methods design, a model will be developed for presenting evidence-based health information on the Internet for people with MS and their families. This evidence-based health information will draw upon systematic reviews of MS interventions from The Cochrane Library. Each stage of the project will build on the last. After conducting focus groups with people with MS and their family members (Stage 1), we will develop a model for summarising and presenting Cochrane MS reviews that is integrated with supporting information to aid understanding and decision making. This will be reviewed and finalised with people with MS, family members, health professionals and MS Society staff (Stage 2), before being uploaded to the Internet and evaluated (Stages 3 and 4).This project aims to produce accessible and meaningful evidence-based health information about MS for use in the varied decision making and management situations people encounter in everyday life. It is expected that the findings will be relevant to broader efforts to provide evidence-based health information for patients and the general public. The international collaboration also permits exploration of cultural differences that could inform international practice.Systematic reviews represent the highest level of evidence of the effectiveness of health care interventions [1]. Historically, it has been clinicians who have used evidence from systematic reviews of controlled trials to stay abreast of current research and inform their practice [2]. Increasingly, however, evidence-based health information, including systematic reviews, is also being provided to lay audiences [3].A recognised source of high quality evidence is the Cochrane Collaboration [4]. Cochrane systematic reviews summarise evidence from trials on the effects of treatments (medicines, surgery, rehabilitation), and behavioura
Disentangling the Threads: Analysing Synchronous Online Discussions  [PDF]
Deirdre Grogan
Creative Education (CE) , 2015, DOI: 10.4236/ce.2015.63032
Abstract: This paper investigates features of synchronous chat-communication within a postgraduate e-learning programme that is rooted communities of enquiry (Lave & Wenger, 1991). This project, funded by the Scottish Government, was to provide staff development for teachers throughout Scotland. The paper considers approaches to making sense of disparate threads of online chats between tutors and students and methodological issues in identifying the appropriate unit of analysis. The framework for analysis was derived from promotion of a community of enquiry perspective (Garrison, 2007; Garrison & Vaughan, 2008) which emphasises the importance of the intersection of social, cognitive and teaching presence for achieving shared learning goals. A quantitative content analysis of transcripts from tutor led group chats was used to determine frequencies of teaching presence, social presence, and cognitive presence indicators. Results show that overall, 70% of the contributions were coded as facilitating cognitive discourse. This finding builds on previous research by Ortiz-Rodriguez et al. (2005) which suggests that instructors can influence cognitive presence within synchronous chat. It is suggested that the community of learning enquiry has the potential to help identify critical points for encouraging cognitive presence within synchronous chats. In addition, the study has implications for the growing number of guidelines for the design of online learning environments, particularly in terms of the extent to which synchronous chats have potentially underestimated the value of synchronous learning environments in supporting deeper, critical thinking and shared reflection among learners.
Ethics and clinical research
Beecher Henry K.
Bulletin of the World Health Organization , 2001,
Exploring Creative Environments through the Child’s Lens  [PDF]
Deirdre Grogan, Joan Martlew
Creative Education (CE) , 2014, DOI: 10.4236/ce.2014.516170
Abstract: There is strong governmental support within the UK to develop creativity and emphasise the importance of its role in learning and teaching. Sharp (2003) identified issues, gaps and priorities for further research that looked at the impact on children of working with professional artists in terms of their creativity. This paper explores the initial findings of an evaluation report conducted by a university research team, exploring the creative performances designed by Starcatchers , an organisation developing performing arts experiences for children aged birth to 4 years. The research team consisted of four action researchers who were each attached to an artist in residence working in four theatre venues across Scotland. The artists involved represented four different art domains: puppetry, visual arts, artistic experiences informed by playing therapy and installation work. The researchers collaborated with the artists to observe children’s engagement, provide feedback, discuss projects, and record the processes of project development. This paper seeks to explore the artists’ experience of designing and implementing participative performance events and the nature and processes of working with young children in performing arts. It focuses on an exploration of the creative learning processes which were developed by the artists in residence to promote children’s creativity and involvement in the visual arts. The role of the artist is examined and key aspects are suggested with a view to enhancing the creative learning experiences provided for children within educational contexts, indicating points for consideration by adults charged with the responsibility of planning and developing environments which support young children’s creativity.
Plural identities among youth of immigrant backround in Montreal
Meintel, Deirdre;
Horizontes Antropológicos , 2000, DOI: 10.1590/S0104-71832000001400002
Abstract: our research concerns the ethnic identity of youth (18-22yrs) of immigrant parentage (greek, portuguese, chilean, vietnamese and salvadoran, with a comparison group of french-speaking québécois youth) in montreal. despite the questioning of notions of ethnicity and ethnic identity that has been going on for several decades, this area of research is still marked by essentialist perspectives that do not coincide with the results of our research. the young people interviewed express fluid ethnic identities that have changed over time and that are characterised by multiple forms of ethnic belonging. they present their ethnic identity as a source of enrichment rather than of conflict or feelings of inferiority. the oral accounts of youth of immigrant origin in montreal give much evidence of transnationality, that is, ties with the cultural group of origin whether in the country of origin or elsewhere; and of transethnicity, solidarities with other ethnic groups in montreal that are seen as culturally or structurally similar. though these two orientations would seem to be somewhat contradictory, they are, we argue, in fact compatible. both offer numerous advantages to immigrant groups and their members, particularly in the present-day context. we examine our research results in light of contextual factors related to the montreal milieu as well as to the age group of those interviewed. we propose that, without minimising these factors, one must question the conceptualisation of ethnic identity especially as it concerns youth of immigrant origins.
Witch and Priest Juxtaposed: Two Figures from Irish Traditional
Deirdre Nuttall
Folklore : Electronic Journal of Folklore , 1998,
Review of 'Technology, Culture, Family: Influences on Home Life'. Author: Elizabeth B. Silva
Deirdre Hynes
International Journal of Gender, Science and Technology , 2011,
Weavers & Warriors? Gender and Online Identity in 1997 and 2007 V1.0
Deirdre Ruane
Transforming Cultures , 2008,
Abstract: In 1997 the Internet was seen by many as a tool for radical reinterpretation of physicality and gender. Cybertheorists predicted we would leave our bodies behind and interact online as disembodied minds, and that the technology would reshape the way we saw ourselves. However, physicality has proved to be an inextricable part of all our interactions. Changing Internet technology has allowed Net users to find a myriad ways to perform and express their gender online. In this paper I consider attitudes to gender on the Net in 1997, when the main concerns were the imbalance between men and women online and whether it was possible or desirable to bring the body into online interactions. In much of the discourse surrounding gender online, a simple binary was assumed to exist. I go on to consider the extent to which those attitudes have changed today. Through my own experience of setting up a women’s community on Livejournal, and my observations of a men’s community set up in response, I conclude that though traditional attitudes to gender have largely translated to the Net and the binary is still the default view, some shifts have occurred. For example, between 1997 and today there seems to have been a fundamental change in perceptions of women’s attitudes to adversarial debate, and an increase in awareness of genders beyond the binary. In addition, experience and preliminary investigation lead me toward a hypothesis that today’s female-identified Net users are engaged in more conscious and active exploration and performance of their gender online than male-identified users are.
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