3D preserving xviii century barroque masterpiece: Challenges and results on the digital preservation of Aleijadinho's sculpture of the Prophet Joel

We present our recent efforts in the digital preservation of a set of baroque sculptures made by Antônio Francisco Lisboa, known as O. Aleijadinho, which is an important American baroque artist. The set was made in the beginning of the xix century and is composed of 12 near real sized sculptures, hand-carved in soapstone. These sculptures represent 12 of the 16 prophets from the Holy Bible and are part of a UNESCO World Heritage Site. Our group has been collaborating with UNESCO in a project that aims to preserve all these statues. We hereby present our initial efforts, consisting of the 3D digital preservation of the Prophet Joel sculpture. We developed a complete 3D digital preservation pipeline composed of four main stages: data acquisition, 3D reconstruction, texture generation and 3D model visualization. By evaluating our results in this first sculpture, we discuss the improvements we conceived before applying our pipeline in the remaining ones. Finally, we present the 3D model of the Prophet which registers the sculpture's current state and will be used in restoration, research and educational activities. We believe this contribution may be useful to guide further research on similar scenarios, showing how to avoid some practical mistakes and achieve good results.     

Emancipation,equality and education: Rancière's critique of Bourdieu and the question of performativity

Jacques Rancière's work has had significant impact in philosophy and literary theory, but remains largely undiscussed in the field of education. This article is a review of the relevance of Rancière's work to education research. Rancière's argument about education emerges from his critique of Bourdieu, which states that Bourdieu reinforces inequality by presuming it as the starting point of his analysis. What is at stake is the question of performativity, and the means by which discourse has effects. This debate has implications for considering the basis of claims to truth in literary and social science discourse. Parallels are drawn between Judith Butler's and Rancière's portrayal of the relationship between discourse and subjection, as well as their attention to discursive ‘imitation’ in making inequality representable. The article concludes with a discussion of the problematic which Rancière's work suggests for education research.     

Motivators and Inhibitors for University Faculty in Distance and e-learning

This article reports on four United States studies of how rewards systems, extrinsic and intrinsic, could play an important role in providing incentives for university faculty to teach (or remain teaching) electronic and distance education courses. The first three studies conducted prior to 2003 reported faculty were inherently motivated to teach e-learning and distance education. The fourth study in 2003 reported key findings that differed from the earlier studies. Using a principal components analysis, the researchers found nine indicators of motivation to participate or not participate in electronic or distance education. The implications from the fourth study indicated that, while faculty members were inherently committed to helping students, faculty members wanted their basic physiological needs met by university administration through extrinsic motivators, such as salary increases and course releases.     

Motivation and attrition in engineering students

In the engineering profession we need to reflect continually on the students we are training, their suitability and ability to become the next generation of engineers, facing an ever-changing future. We need to face our responsibility in helping to develop the skills required for graduates of tomorrow and ensuring that we are not losing our best students to other professions. A survey has been conducted at Imperial College highlighting problem areas of students at risk from demotivation within engineering courses. Forty students who had not completed their course at the college were surveyed and 10 students were interviewed. The issues they raised have been analysed and intervention strategies have been identified which are presently being developed at the college as part of the ongoing quality improvement of courses. It is hoped that the approaches discussed can be disseminated further within Imperial College and to other universities.     

Learning: The pupil's voice

Summaries are given of research on the learner's role in learning and pupils' attitudes to school and it is argued that few studies have collected the views of young children on learning. This provides the rationale for a pilot study which probed the perceptions of a sample of 44 Year 2 and Year 6 children in schools in and around London. The findings indicate that children as young as seven can conceptualise 'learning' and are able to articulate learning strategies and processes they use. It is suggested that the pupil's voice is an increasingly important element in furthering our understanding of teaching and learning more generally.     

Development of dyslexic subgroups:

There is a consensus that dyslexia is on a continuum with normal reading skill and that dyslexics fall at the low end of the normal range in phonological skills. However, there is still substantial variability in phonological skill among dyslexic children. Recent studies have focused on the high end of the continuum of phonological skills in dyslexics, identifying a “surface” dyslexic, or “delayed” profile in which phonological skills are not out of line with other aspects of word recognition. The present study extended this work to a longitudinal context, and explored differences among subgroups of dyslexics on a battery of component reading skills. Third grade dyslexics (n=72) were classified into two subgroups, phonological dyslexics and delayed dyslexics, based on comparisons to younger normal readers at the same reading level (RL group). The children were tested at two points (in third and fourth grade). The results revealed that the classification of dyslexics produced reliable, stable, and valid groups. About 82 percent of the children remained in the same subgroup category when retested a year later. Phonological dyslexics were lower in phoneme awareness and expressive language. Delayed dyslexics tended to be slower at processing printed letters and words but not at rapid automatic naming of letters, and relied more heavily on phonological recoding in reading for meaning than did phonological dyslexics. A subset of the delayed dyslexics with the traditional “surface dyslexic” pattern (relatively high pseudoword and low exception word reading) was also identified. The surface subgroup resembled the RL group on most measures and was not very stable over one year. The results are discussed in light of current models of dyslexia and recent subgrouping schemes, including the Double-Deficit Hypothesis.