The roles and positioning of non-English speaking background overseas-trained teachers in the Australian public school system

University of Technology Sydney. Faculty of Arts and Social Sciences.This thesis focuses on bilingual/plurilingual school teachers who are working in the Australian education field. The research investigates the ways in which these teachers are differentially denied or allowed access to the Australian education field, and ways in which these teachers, rich in plurilingual and pluricultural experience, are legitimated once they are employed in the public school system. Bourdieu’s key concepts of fields of power, capital and habitus provide the primary analytical lens for this research; Fairclough’s critical discourse analysis is a complementary tool for an investigation into how the teachers are positioned in the field. This qualitative research draws on analyses of institutional documents pertaining to Australian education as well as case study interviews with teachers. Much has been documented concerning the challenges and hurdles facing non-English-speaking-background (NESB) overseas-trained teachers in Australian schools. This research explores where these teachers are located in the field; the habitus of these teachers; the strategies these teachers have demonstrated to accumulate capital, and; how, or indeed whether, these strategies have changed the logic of practice in the field. The study investigates various forms of cultural capital, for example, language awareness and ability, and cultural awareness or understanding, and how these are accumulated and valued in the field. The research maps the linguistic markets within the schools and across communities. The study found that the hegemonic practices of the field, such as the use of English as the solely legitimated language and the ways in which languages other than English are subjugated, are successful in maintaining their dominance over the field and thus delegitimate dominated languages and cultures in the field. The study’s findings and analysis illuminate the impediments facing bilingual/plurilingual teachers in Australia. The thesis provides great insight into the teachers’ dispositions and how their habitus continually shapes and is shaped by the field; it shows how the power relations in the field are established through the interpretations made by dominant agents in the sites of practice. The research uncovers how the logic of practice and doxa of the field are open to interpretations due to the unclear and at times contradictory messages around language practices at the policy/political level. Ultimately, the thesis also shows the ways in which the IEs themselves uphold the hegemonic practices of the field through their misrecognition of the logic of practice of the field

Cryopreservation of hazelnut (Corylus avellana l.) axillary buds from in vitro shoots using the droplet vitrification method

Cryopreservation by droplet vitrification was applied to hazelnut (Corylus avellana L.). axillary buds of the Italian cultivated variety Tonda Gentile Romana, which were collected from in vitro growing shoots, immersed in ice cooled PVS2 or PVS3 for 60 or 90 min, then transferred to a droplet of vitrification solution, placed on a strip of aluminium foil, and plunged into liquid nitrogen (LN). Additionally, the effect on the recovery of the mother plant after cryopreservation was evaluated, following a cold pre-treatment at 4◦C for 3 months. The highest regrowth percentage (56.7%) was obtained after applying PVS3 for 60 min, while the application of PVS2 for the same amount of time reduced regrowth to 41.5%. Increasing the exposure to vitrification solutions to 90 min reduced regrowth to 43.3% when PVS3 was applied, and 35.6% if PVS2 was used. The cold pre-treatment on the mother plant did not significantly improve overall regrowth. The cryopreservation process did not decline the rooting ability of the recovered shoot

Percurso artístico coletivo: o caso da revista Guapa

During covid-19 pandemic outbreak (2020-2022), people from different regions of Brazil gathered remotely to dialogue, reflect, and produce artist books for the online course “Dobras de si” (“folds of oneself”). Its first version was so stimulating that, even after the end of the classes, some of the students decided to continue together to research and produce artist books. Thus, Guapa group was born and, to maintain the vivacity of the creative production, the group founded an artist magazine with semesterly periodicity. In a friendly feast of ideas, the artists offer a productive collective dialogue that enhances individual perceptions. For the development of this article, we accessed documents about the manufacturing processes of the magazine pages that the artists share with the group. Therefore, we corroborate Salles’ assertion about the importance of contemplating the process as part of the work of art history, even if it is transitory. We also consulted other authors who develop studies about creative processes, such as Ostrower. The final discussion is about the result of a collective path that preserves individual artistic production, although above all the creative process carried out together and the dialogue taken over the group become fundamental for the realization of the magazine.Durante o período pandêmico decorrente da Covid-19 (2020-2022), pessoas de distintos lugares do Brasil puderam se reunir de maneira remota para dialogar, refletir e produzir livros de artista no curso on-line “Dobras de si”. A primeira versão do curso foi tão estimulante que, após o término das aulas, alguns participantes resolveram continuar juntos para pesquisar e produzir livros de artista. Surgia o grupo Guapa, que, para manter a vivacidade da produção criativa, criou uma revista de artista com periodicidade semestral. Em um amistoso banquete de ideias, os artistas oferecem um diálogo produtivo e coletivo que potencializa as percepções individuais. Para o desenvolvimento deste artigo, acessaram-se os documentos de registro do processo criativo para a manufatura das páginas da revista que os artistas compartilham entre o grupo, com o propósito de agregar informação à metodologia de produção. Assim, corrobora-se o pensamento de Salles de que o processo faz parte da história da obra e, por isso, deve ser contemplado, mesmo que seja transitório. Textos de outros estudiosos do processo criativo, como Ostrower, também foram consultados. A discussão final é sobre o resultado de um percurso coletivo que preserva a produção artística individual, mas, sobretudo, o aproveitamento de um processo criativo realizado em conjunto e em diálogo, elementos fundamentais para a concretização da revista.

Valorization of Apple Peels through the Study of the Effects on the Amyloid Aggregation Process of κ-Casein

Waste valorization represents one of the main social challenges when promoting a circular economy and environmental sustainability. Here, we evaluated the effect of the polyphenols extracted from apple peels, normally disposed of as waste, on the amyloid aggregation process of κ-casein from bovine milk, a well-used amyloidogenic model system. The effect of the apple peel extract on protein aggregation was examined using a thioflavin T fluorescence assay, Congo red binding assay, circular dichroism, light scattering, and atomic force microscopy. We found that the phenolic extract from the peel of apples of the cultivar "Fuji", cultivated in Sicily (Caltavuturo, Italy), inhibited κ-casein fibril formation in a dose-dependent way. In particular, we found that the extract significantly reduced the protein aggregation rate and inhibited the secondary structure reorganization that accompanies κ-casein amyloid formation. Protein-aggregated species resulting from the incubation of κ-casein in the presence of polyphenols under amyloid aggregation conditions were reduced in number and different in morphology