104 research outputs found

    Cours de langues et cultures d’origine et école ordinaire: quelles relations ?

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    Obwohl es in der heutigen globalisierten Welt es immer mehr zur Norm wird, mehrere Sprachen zu sprechen. erfreuen sich die Herkunftsprachen von Kindern mit Migrationshintergrund im schulischen Umfeld nicht des zu erwartenden Ansehens. Immer wieder werden sie bezichtigt, die Schülerinnen und Schüler beim Erlernen der Zweitsprache Französisch zu behindern, manchmal werden sie toleriert, häufig ignoriert und es muss festgestellt werden, dass die Migrationssprachen noch kaum von der Schule anerkannt werden. Welchen Stellenwert muss die Schule ihnen denn tatsächlich einräumen? Welche Wechselwirkungen gibt es zwischen der Schule und dem Unterricht in heimatlicher Sprache und Kultur (HSK)? Welchen Raum sind die Lehrpersonen der Regelklassen bereit, dem HSK-Unterricht einzuräumen? All dies sind Fragen, auf die im vorliegenden Artikel ein Antwort versucht werden soll, indem die verschiedenen institutionellen Rahmenbedingungen, welche auf nationaler und kantonaler Ebene das Umfeld des HSK-Unterrichts definieren, in Bezug gesetzt werden zur tatsächlichen Praxis bei der Zusammenarbeit zwischen Lehrpersonen in Regelklassen und Unterrichtenden der HSK-Kurse. Daneben sollen auf der Grundlage von Forschungsresultaten aus dem Kanton Freiburg (Steiner, 2009) Unterschiede und Übereinstimmungen zwischen diesen beiden Typen von Lehrpersonen dargestellt werden

    Les futurs enseignants et la créativité: quelles conceptions ?

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    Cette contribution présente les résultats obtenus dans le cadre d’une recherche menée par la Haute école pédagogique fribourgeoise (HEP-FR) et visant à capter les conceptions des étudiants au sujet de la créativité. Ce travail, basé sur la passation d’un questionnaire traduit et adapté de Diakidoy et Kanari (1999) et sur une série d’entretiens semi-dirigés menés avec des étudiants ayant développé des séquences d’enseignement – apprentissage en éducation musicale autour de la créativité lors d’un stage d’enseignement, met en évidence un enchevêtrement de conceptions plus ou moins antithétiques ainsi qu’un relatif désintérêt du processus créatif au profit du produit final

    Centro de visitantes da Gruta do Bacaetava

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    Orientador: Emerson José VidigalMonografia (graduação) - Universidade Federal do Paraná, Setor de Tecnologia, Curso de Graduação em Arquitetura e UrbanismoInclui referênciasResumo : Esta monografia constitui-se em uma base teórica, conceitual e metodológica para a posterior elaboração do projeto do Trabalho Final de Graduação, no curso de Arquitetura e Urbanismo da Universidade Federal do Paraná. Através de pesquisa, conceituação do tema, análise de casos e da realidade, busca-se alternativas para solucionar o projeto de um Centro de Visitantes para a Gruta do Bacaetav

    Produção imobiliária residencial, Florianópolis 1980-2010

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    A produção habitacional formal, por suas características e especificidades, ocupa um papel destacado na organização do espaço urbano e projeta sobre ele as relações capitalistas. Se o metabolismo socioeconômico mais geral se altera, também se altera o modo de produção do espaço urbano e da moradia. Esta pesquisa tem por objetivo compreender as principais transformações dos produtos imobiliários residenciais no Distrito Sede de Florianópolis, a partir do estudo de três tipologias: loteamentos, condomínios horizontais e condomínios verticais, no período compreendido entre 1981 e 2010. A partir da produção imobiliária residencial, procurou entender como as transformações mais gerais do sistema socioeconômico modificam - mas também se adaptam - ao tocarem territórios concretos, repletos de história, de conflitos e de interesses não necessariamente alinhados entre si. A pesquisa parte da hipótese de que nas últimas décadas os produtos imobiliários residenciais sofreram transformações importantes, em parte como respostas às mudanças no metabolismo do capitalismo em sua versão neoliberal e financeirizada; em parte condicionada por aspectos específicos de Florianópolis: seu território, seus agentes, suas instituições, seus conflitos e relações de poder.Programa de Educação Tutorial - PET. FNDE/MDE

    The Permafrost-Agroecosystem Action Group: first results and future goals

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    Permafrost-agroecosystems encompass northern social-ecological systems which include both cultivation of arable permafrost-affected soils, and animal husbandry practices. These heterogeneous food and cultural systems are being affected by a warming climate. Examples include increasing opportunities for growing crops through longer growing seasons, as well as impacts on animals’ local and long-distance migratory movements and their food sources. Furthermore, climate change driven permafrost thaw and thaw accelerated by land clearance is rapidly changing the biophysical and socioeconomic aspects of these systems. Therefore, an international collaboration encompassing experts from North America, Europe and Asia is working on increasing our understanding of permafrost-agroecosystems and contributing to the adaptation, resilience, and sustainability strategy of these rapidly evolving systems. The International Permafrost Association Permafrost-Agroecosystem Action Group is composed of ~30 members from 7 countries. The objectives of our action group are to share knowledge and build networking capacities through meetings and webinar presentation as well as to collaborate on publications and produce the first geospatial dataset of permafrost-agroecosystems. Our poster presentation provides an overview of the group’s activities including providing case studies from a range of high-latitude and high-altitude areas as part of a group manuscript in preparation and an update on our mapping activities

    Socioecological dynamics of diverse global permafrost-agroecosystems under environmental change

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    Permafrost-agroecosystems include all cultivation and pastoral activities in areas underlain by permafrost. These systems support local livelihoods and food production and are rarely considered in global agricultural studies but may become more relevant as climate change is increasing opportunities for food production in high latitude and mountainous areas. The exact locations and amount of agricultural production in areas containing permafrost are currently unknown, therefore we provide an overview of countries where both permafrost and agricultural activities are present. We highlight the socioecological diversity and complexities of permafrostagroecosystems through seven case studies: (1) crop cultivation in Alaska, USA; (2) Indigenous food systems and crop cultivation in the Northwest Territories, Canada; (3) horse and cattle husbandry and Indigenous hay production in the Sakha Republic, Russia; (4) mobile pastoralism and husbandry in Mongolia; (5) yak pastoralism in the Central Himalaya, Nepal; (6) berry picking and reindeer herding in northern Fennoscandia; and (7) reindeer herding in northwest Russia. We discuss regional knowledge gaps associated with permafrost and make recommendations to policy makers and land users for adapting to changing permafrost environments. A better understanding of permafrost-agroecosystems is needed to help sustainably manage and develop these systems considering rapidly changing climate, environments, economies, and industries

    Progress and challenges in glacial lake outburst flood research (2017–2021):a research community perspective

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    Glacial lake outburst floods (GLOFs) are among the most concerning consequences of retreating glaciers in mountain ranges worldwide. GLOFs have attracted significant attention amongst scientists and practitioners in the past 2 decades, with particular interest in the physical drivers and mechanisms of GLOF hazard and in socioeconomic and other human-related developments that affect vulnerabilities to GLOF events. This increased research focus on GLOFs is reflected in the gradually increasing number of papers published annually. This study offers an overview of recent GLOF research by analysing 594 peer-reviewed GLOF studies published between 2017 and 2021 (Web of Science and Scopus databases), reviewing the content and geographical focus as well as other characteristics of GLOF studies. This review is complemented with perspectives from the first GLOF conference (7-9 July 2021, online) where a global GLOF research community of major mountain regions gathered to discuss the current state of the art of integrated GLOF research. Therefore, representatives from 17 countries identified and elaborated trends and challenges and proposed possible ways forward to navigate future GLOF research, in four thematic areas: (i) understanding GLOFs - timing and processes; (ii) modelling GLOFs and GLOF process chains; (iii) GLOF risk management, prevention and warning; and (iv) human dimensions of GLOFs and GLOF attribution to climate change.Fil: Emmer, Adam. University of Graz; AustriaFil: Allen, Simon K.. Universitat Zurich; Suiza. Universidad de Ginebra; SuizaFil: Carey, Mark. University of Oregon; Estados UnidosFil: Frey, Holger. Universitat Zurich; SuizaFil: Huggel, Christian. Universitat Zurich; SuizaFil: Korup, Oliver. Universitat Potsdam; AlemaniaFil: Mergili, Martin. University of Graz; AustriaFil: Sattar, Ashim. Universitat Zurich; SuizaFil: Veh, Georg. Universitat Potsdam; AlemaniaFil: Chen, Thomas Y.. Columbia University; Estados UnidosFil: Cook, Simon J.. University Of Dundee; Reino Unido. Unesco. Centre For Water Law, Policy And Science; Reino UnidoFil: Correas Gonzalez, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Das, Soumik. Jawaharlal Nehru University; IndiaFil: Diaz Moreno, Alejandro. Reynolds International Ltd; Reino UnidoFil: Drenkhan, Fabian. Pontificia Universidad Católica de Perú; PerúFil: Fischer, Melanie. Universitat Potsdam; AlemaniaFil: Immerzeel, Walter W.. Utrecht University; Países BajosFil: Izagirre, Eñaut. Universidad del País Vasco; EspañaFil: Joshi, Ramesh Chandra. Kumaun University India; IndiaFil: Kougkoulos, Ioannis. American College Of Greece; GreciaFil: Kuyakanon Knapp, Riamsara. University of Oslo; Noruega. University of Cambridge; Estados UnidosFil: Li, Dongfeng. National University Of Singapore; SingapurFil: Majeed, Ulfat. University Of Kashmir; IndiaFil: Matti, Stephanie. Haskoli Islands; IslandiaFil: Moulton, Holly. University of Oregon; Estados UnidosFil: Nick, Faezeh. Utrecht University; Países BajosFil: Piroton, Valentine. Université de Liège; BélgicaFil: Rashid, Irfan. University Of Kashmir; IndiaFil: Reza, Masoom. Kumaun University India; IndiaFil: Ribeiro De Figueiredo, Anderson. Universidade Federal do Rio Grande do Sul; BrasilFil: Riveros, Christian. Instituto Nacional de Investigación En Glaciares y Ecosistemas de Montaña; PerúFil: Shrestha, Finu. International Centre For Integrated Mountain Development Nepal; NepalFil: Shrestha, Milan. Arizona State University; Estados UnidosFil: Steiner, Jakob. International Centre For Integrated Mountain Development Nepal; NepalFil: Walker-Crawford, Noah. Colegio Universitario de Londres; Reino UnidoFil: Wood, Joanne L.. University of Exeter; Reino UnidoFil: Yde, Jacob C.. Western Norway University Of Applied Sciences; Suiz

    Characteristics and properties of nano-LiCoO2 synthesized by pre-organized single source precursors: Li-ion diffusivity, electrochemistry and biological assessment

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    Background: LiCoO2 is one of the most used cathode materials in Li-ion batteries. Its conventional synthesis requires high temperature (>800 degrees C) and long heating time (>24 h) to obtain the micronscale rhombohedral layered high-temperature phase of LiCoO2 ( HT-LCO). Nanoscale HT-LCO is of interest to improve the battery performance as the lithium (Li+) ion pathway is expected to be shorter in nanoparticles as compared to micron sized ones. Since batteries typically get recycled, the exposure to nanoparticles during this process needs to be evaluated. Results: Several new single source precursors containing lithium (Li+) and cobalt (Co2+) ions, based on alkoxides and aryloxides have been structurally characterized and were thermally transformed into nanoscale HT-LCO at 450 degrees C within few hours. The size of the nanoparticles depends on the precursor, determining the electrochemical performance. The Li-ion diffusion coefficients of our - LiCoO2 nanoparticles improved at least by a factor of 10 compared to commercial one, while showing good reversibility upon charging and discharging. The hazard of occupational exposure to nanoparticles during battery recycling was investigated with an in vitro multicellular lung model. Conclusions: Our heterobimetallic single source precursors allow to dramatically reduce the production temperature and time for HT-LCO. The obtained nanoparticles of LiCoO2 have faster kinetics for Li+ insertion/extraction compared to microparticles. Overall, nano-sized - LiCoO2 particles indicate a lower cytotoxic and (pro-)inflammogenic potential in vitro compared to their micron-sized counterparts. However, nanoparticles aggregate in air and behave partially like microparticles

    Comparative genomics of proteins involved in RNA nucleocytoplasmic export

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    Background: The establishment of the nuclear membrane resulted in the physical separation of transcription and translation, and presented early eukaryotes with a formidable challenge: how to shuttle RNA from the nucleus to the locus of protein synthesis. In prokaryotes, mRNA is translated as it is being synthesized, whereas in eukaryotes mRNA is synthesized and processed in the nucleus, and it is then exported to the cytoplasm. In metazoa and fungi, the different RNA species are exported from the nucleus by specialized pathways. For example, tRNA is exported by exportin-t in a RanGTP-dependent fashion. By contrast, mRNAs are associated to ribonucleoproteins (RNPs) and exported by an essential shuttling complex (TAP-p15 in human, Mex67-mtr2 in yeast) that transports them through the nuclear pore. The different RNA export pathways appear to be well conserved among members of Opisthokonta, the eukaryotic supergroup that includes Fungi and Metazoa. However, it is not known whether RNA export in the other eukaryotic supergroups follows the same export routes as in opisthokonts. Methods: Our objective was to reconstruct the evolutionary history of the different RNA export pathways across eukaryotes. To do so, we screened an array of eukaryotic genomes for the presence of homologs of the proteins involved in RNA export in Metazoa and Fungi, using human and yeast proteins as queries. Results: Our genomic comparisons indicate that the basic components of the RanGTP-dependent RNA pathways are conserved across eukaryotes, and thus we infer that these are traceable to the last eukaryotic common ancestor (LECA). On the other hand, several of the proteins involved in RanGTP-independent mRNA export pathways are less conserved, which would suggest that they represent innovations that appeared later in the evolution of eukaryotes. Conclusions: Our analyses suggest that the LECA possessed the basic components of the different RNA export mechanisms found today in opisthokonts, and that these mechanisms became more specialized throughout eukaryotic evolution
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