Review of several optical non-destructive analyses of an easel painting. Complementarity and crosschecking of the results

Five optical analyses of a given work of art are presented, using multispectral imaging, optical coherence tomography, goniophometry, UV-fluorescence emission spectroscopy and diffuse reflectance spectroscopy. All these methods are non-destructive, contactless, and implementable in situ. They all lead to results in quasi-real time. The multispectral camera allows imaging of the whole painting with very high definition and recording of 240 millions of spectra. Optical coherence tomography allows local 2D and 3D imaging with in-face and in depth stratigraphies inside the painting with a micrometric accuracy. It allows the evaluation of the pigment volume concentration inside a layer, the measurement of the thickness of one or two varnish layers, the detection and measurements of gaps inside the paint layer, the depth of varnish micro-cracks. Goniophotometry allows the measurement of the upper surface state of the painting in different locations, by quantifying the mean slope of the facets making up the surface. UV-fluorescence emission spectroscopy allows the identification of the resin, the binder and the ageing state of varnishes by use of databases of reference varnishes. Diffuse reflectance spectroscopy leads to pigment, pigment mixture and dye identifications again by use of databases. The three last methods are implemented with the same portable multi-function instrument. It allows time saving, locations on request in front of the artwork and easy use by non-scientists. Each instrument is described with its protocol and accuracy. The studied painting is a portrait of a lady painted by the Austrian artist Franz Strotszberg, chosen for its several restorations. The five kinds of results are successively detailed, analysed and compared between themselves. It is shown that the different results are complementary and their crosschecking brings thorough information. For example, the shape of the network of varnish micro-cracks detected on the surface with the multispectral camera is added to the measurement of their depth with optical coherence tomography. Another example allows connecting two different surface states of the upper varnished surface measured by goniophotometry with the identification of these varnish with UV-fluorescence and with their thicknesses measured with optical coherence tomography.     

Exploring doctorate holders’ perceptions of the non-academic labour market and reputational problems they relate to their employment

Doctoral employment outside universities has been increasing, as universities cannot employ all doctorate holders. Nevertheless, it has been argued that the shift from doctoral programs to the non-academic labour market has been limited. In this qualitative study, more than 800 verbal answers given by doctorate holders to a pair of open-ended questions were content-analysed to explore doctorate holders’ perceptions of the non-academic labour market and the reputational problems they relate to their employment. The study identifies four reputational problems which doctorate holders relate to their employment: the oversupply problem, the overeducation problem, the consistency problem and the communication problem. By identifying potential reputational problems on the doctorate holders level, this research contributes novel information in terms of both theory development and practitioner insights.

     

Informal learning: A case study of local curriculum development in Indonesia

Conclusion This paper has examined the informal learning of the Lamaholot people, a relatively small cultural community living in the regency of Flores Timur in eastern Indonesia. The informal learning in Lamaholot areas is different from the formal learning imposed by a central educational board in Jakarta. Informal learning is part of everyday life, and is used to preserve Lamaholot culture, while the formal learning is designed to help students participate in modern economic activities, even though it threatens the survival of the local culture. In order to build a school system that promotes both the acquisition of new knowledge and the preservation of Lamaholot culture, the incorporation of informal approaches into formal learning becomes a necessity. Models and strategies discussed in this paper indicate that it is feasible to implement such an integrated approach. Certainly it is better to try and fuse the traditional with the modern, rather than to perpetuate the imposition of an exclusive national curriculum that is detrimental to the development of local Lamaholot culture. By giving the Lamaholot people the right to preserve their culture within the context of the school, Lamaholot children will be able to acquire modern knowledge without losing their cultural identity. A senior lecturer at the University of Nusa Cendana, Kupang, Nusa Tingara Timur (NTT), Indonesia. At present he is a doctoral candidate in the School of Education at Flinders University in Adelaide, South Australia. His thesis focuses on cultures of knowledge and learning, and incorporates a case study of local curriculum development in the regency of Flores Timur, NTT, Indonesia.     

CLASSROOM CLIMATE IN AN ORTHODOX DAY SCHOOL: The Contribution of Emotional Intelligence,Demographics, and Classroom Context

I had completed a long list of wonderful ideas for the Synagogue School of the 21st Century, and was about to sit down and write my paper, when my eye glanced upon the Spring-Summer 1990 issue of Jewish Education. When I noticed the articles of Alvin Schiff and Rela Geffen Monson, I read through them before beginning to write: Lo and behold, everything I had written down and was already there — in Jewish Education under the title, “Toward the Year 2000.”     

“So it Takes Extra Time and Effort,Pero, Vale la Pena”: A Bilingual Teacher’s Testimonio Revealing Pedagogical Clarity

The Urban Review - This testimonio examines how a 3rd grade bilingual teacher unpacks the learning process as it relates to her agency in implementing culturally relevant (Ladson-Billings, Am Educ...     

Early childhood teachers' understanding of inclusive education and associated practices: reflections from Greece

This paper focuses on Greek regular and special preschool teachers' understanding of inclusion; their views about the engagement of children with disabilities in typical day routines/activities; and their preferred strategies for facilitating children's engagement in classroom activities. Data were gathered through semi-structured interviews with 77 teachers (45 regular and 32 special educators) drawn from 47 preschool mainstream settings in Greece. The analysis revealed that teachers hold conflicting and restrictive beliefs about inclusive education. Further, the teachers' accounts indicated that most of the children with disabilities were experiencing significant difficulties in their engagement during free-play as well as structured/semi-structured activities. Lastly, teachers identified a range of strategies that they deployed for promoting children's involvement in classroom activities. The paper concludes by highlighting the need to shift away from a narrow individualistic-deficit assumption of disability towards a socio-constructivist conceptualisation of ‘diversity’ and the establishment of genuinely inclusive school cultures.