Logic and Memory Design Based on Unequal Error Protection for Voltage-scalable, Robust and Adaptive DSP Systems

In this paper, we propose a system level design approach considering voltage over-scaling (VOS) that achieves error resiliency using unequal error protection of different computation elements, while incurring minor quality degradation. Depending on user specifications and severity of process variations/channel noise, the degree of VOS in each block of the system is adaptively tuned to ensure minimum system power while providing "just-the-right" amount of quality and robustness. This is achieved, by taking into consideration block level interactions and ensuring that under any change of operating conditions, only the "less-crucial" computations, that contribute less to block/system output quality, are affected. The proposed approach applies unequal error protection to various blocks of a system-logic and memory-and spans multiple layers of design hierarchy-algorithm, architecture and circuit. The design methodology when applied to a multimedia subsystem shows large power benefits ( up to 69% improvement in power consumption) at reasonable image quality while tolerating errors introduced due to VOS, process variations, and channel noise.

Elementary School Principals in Low-Socioeconomic-Status Schools: A University-Based Research Program Designed to Support Mandated Reform

This paper presents a reform initiative, the Supporting Montreal Schools Program (SMSP), created by the government of Quebec to assist 184 low socio-economic-status schools in Montreal implement seven reform strategies prescribed by the government. On a regular basis, the professional team of the SMSP engages in reflection and research with universities concerning one or more of the strategies they are charged with helping schools implement or the functioning of the SMSP more generally. The present research programme is part of the team’s ongoing reflection on a component of Strategy 4: professional development of school administrators and the school team. In this paper, we detail results from this initial and subsequent studies on the work of principals in low-performing schools. We also describe our collaborative relationship with the SMSP team, discuss the effectiveness of the SMSP in promoting the implementation of the seven governmentmandated strategies and critique the utility of our partnership with the SMSP and our use of that programme as a vehicle for linking research to practice.

Cervical cancer services for Indigenous Women: Advocacy, Community-Based Research and Policy Change in Australia

Collaborative research undertaken in the state of Queensland, Australia, resulted in major changes in cervical cancer screening and treatment for Indigenous women. Guided by an Indigenous statewide reference group and with an Indigenous researcher playing a lead role, qualitative data were collected using interviews, focus groups, and larger community meetings; and case studies were conducted with health workers and community members from diverse rural, remote and urban communities, to explore the different cultural and structural factors affecting understanding and awareness of cervical cancer and Indigenous women's use of and access to health services for screening, diagnosis and treatment. These data were supplemented by an analysis of clinical data and health service checklists. We discuss the methodology and summarize the key social and structural factors that discourage women from presenting for screening or returning for follow-up. These include women's misunderstanding of cervical cancer screening, fear of cancer, distrust of health services, poor recall and follow-up systems, and the economic and social burden to women presenting for treatment. We describe how the research process and subsequent activities provided Indigenous women with a vehicle for their own advocacy, resulting in important policy and program changes.

Traversing theory and transgressing academic discourses : arts-based research in teacher education

Pre-service teacher education is marked by linear and sequential programming which offers a plethora of strategies and methods (Cochran-Smith & Zeichner, 2005; Darling Hammond & Bransford, 2005; Grant & Zeichner, 1997). This paper emerges from a three year study within a core education subject in preservice teacher education in Australia. This ‘practitioner’ research (Zeichner, 1999) engaged the problematics of authentic and meaningful learner-centred teaching and learning through an arts-based curriculum. Over the period of the study, two hundred and eighty pre-service teachers participated in a ‘dialogical performance’ (Conquergood, 2003) of pedagogy about curriculum and assessment through the construction of art about curriculum and assessment. The possibilities of an arts-based pedagogy in pre-service education were affirmed by the research. An enacted epistemological move by the teacher educators led to similar shifts by the students. This opened a space for the reappearance of learner through engagements with identities, positionings and agency. This was an act of ‘putting theory to work’ (Lather, 2006, 2007) and invoked transgressive practices of academic discourses.

The process of design based learning : a students' perspective

BACKGROUND : Deakin engineering has used Design Based Learning (DBL) as one of its engineering learning principles for further development in teaching and learning. Whilst the students are surveyed after every unit, this data only provides a generic overview of the process and does not help the academic staff determine if DBL is a preferable learning and teaching approach. What is required to improve the process is a holistic approach from the students’ perspective over the entire degree program.

PURPOSE : Do students see any value in DBL and should it be is further developed for teaching and learning? This study examines students’ perceptions of DBL in their curriculum, DBL in final year project, DBL in engineering career.

DESIGN/METHOD : A survey dedicated to DBL from the students’ point of view has been designed and given to 30 fulltime students in 3rd year in engineering at Deakin. A qualitative and quantitative analysis of this survey will give students’ perspective of DBL as they progress through their degree studies.

RESULTS : The full time students’ surveyed indicated that they believed that DBL was a useful tool and was of value to their career. Also that it would be helpful as part of their final project and that it helps teamwork although they would like to see it used for both team and individual work.

CONCLUSIONS : The full time students’ surveyed displayed a basic understanding of DBL and an eagerness to use it. Students’ perceived that DBL approach got an important value in their learning curriculum and it is a positive sign for the Deakin engineering to use it as one of its engineering learning principle.

Technology integration in project oriented design based learning for distance education

Technology plays critical role in delivering modern education to the next generation. Proper and effective use of technology is extremely important especially for distance education. Students who enroll in distance mode have a number of limitations as most of them work full time along with the commitments to the family. This paper discusses technology integration for the distance students based on the Project Oriented Design Based Learning.