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The site of Lalibela is the result of Tertiary volcanic activity which led to the formation of a vast outcrop of basaltic slag from which churches were carved. This reddish rock which is particularly suitable for carving, is extremely interactive with water. It was beneficial for the impressive excavation phases, but is now problematic for conservation purposes. Digging meant either the penetration of water into the massif and its erosion, but also the protection of the monuments from water stagnation. This is a very paradoxical situation in which water plays an alternately positive and negative role. Due to its sacred dimension, any intervention on the rock must be discussed and validated by the community. 3D technologies were used to carry out an assessment of the state of the site, to create a virtual 3D model that can be accessed and consulted remotely by all the specialists faced to the conservation problem; to trace the historical evolution of the site.

This article presents the process adopted by the France to bring library catalogs to the Web of data and the RDA role in this general strategy. After analising RDA limits and inconsistencies, inherited from the tradition of AACR and MARC21 catalogues, the authors present the French approach to RDA and its positioning in correlation to international standards like ISBD and FRBR. The method adopted in France for FRBRising the catalogues go through a technical work of creating alignment beteween existing data, exploiting the technologies applied to the creation of data.bnf.fr and through a revision of the French cataloguing rules, allowing FRBRised metadata creation. This revision is based on RDA and it is setting up a French RDA application profile, keeping the analysis on the greater differences. RDA adoption, actually, is not a crucial issue in France and not a self standing purpose; it is just a tool for the transition of bibliographic data towards the Web of data.

Este artigo analisa o discurso de diferentes atores no momento do debate sobre o novo currículo de História nacional no Quebec de 2006 a 2010. Duas posições opostas quanto ao lugar do saber histórico e sua construção são identificadas: uma visa ao desenvolvimento de habilidades intelectuais associadas ao pensamento histórico; a outra enfatiza a transmissão e a memorização de uma trama narrativa rígida.

This article presents the process adopted by the France to bring library catalogs to the Web of data and the RDA role in this general strategy. After analising RDA limits and inconsistencies, inherited from the tradition of AACR and MARC21 catalogues, the authors present the French approach to RDA and its positioning in correlation to international standards like ISBD and FRBR. The method adopted in France for FRBRising the catalogues go through a technical work of creating alignment beteween existing data, exploiting the technologies applied to the creation of data.bnf.fr and through a revision of the French cataloguing rules, allowing FRBRised metadata creation. This revision is based on RDA and it is setting up a French RDA application profile, keeping the analysis on the greater differences. RDA adoption, actually, is not a crucial issue in France and not a self standing purpose; it is just a tool for the transition of bibliographic data towards the Web of data.

On several occasions, Gaston Bachelard has suggested that his poetic of elements could be extended beyond the four chemical elements, notably by increasing the specificity of the material imagination related to darkness, to the nocturne element, to the material called “la ténèbre” (the darkness). According to this thinking, we propose a dual examination of some physical concepts which include the adjective "black(/dark)": the black bodies, the black holes, and the dark matters. To understand the nature of these dark thoughts, it is necessary to explain the process by which the physical transforms the meaning of the adjective, but also five free rein to a poetic digression that reveals how the dark "colours" concepts by associating them with other images. The riddle of the black body radiation is no longer simply the opportunity to explore the quantum but also the pattern of a self-awareness rêverie; the black hole is not only a singularity of the theory of general relativity but also a symbol of great depression; the dark matter is no longer just an astrophysics hypothesis but also the object of a fantasized alchemical research. Combining psychoanalysis and epistemology of knowledge about the physical "black" we hope to show how the duality of Bachelard’s philosophy responds to the provocations of material to think and dream.

In this paper we present the digitalisation of the map of the vegetation of France edited by the CNRS in 64 sheets between 1947 and 1991. The geographical covers and the databases built during this work are gathered in a geographical database called “Base de Données Géographique de la VÉGétation de la France” (BDGveg_FR). The main covers show respectively the vegetation succession stages, as a georeferenced scan, at 1/200,000, and the harmonised map of the potential vegetation, in a vector format, at 1/1,000,000. The harmonised map of the potential vegetation is linked with a national 6-level typology synthesised from the keys of the 64 sheets. Possible uses of the BDGveg_FR are shown with some examples on the determination of the factors of vegetation distribution (altitude, geology, soil and climate) by intersecting it with others sources of geographical data (digital elevation model, vector covers at 1/1,000,000 of soil and geology). The BDGveg_FR is actually complementary to the other databases on the vegetation of France presently available thanks to its period of time, its local and national scales, its exhaustive cover and its information on the plant associations. It can be used to assess the impact of global changes (e.g. climate, atmospheric pollution) on ecosystems.

The article describes the experience of setting up a capitalization and knowledge dissemination service within a research institution. More than 2000 documents, dealing with the theme "Future Agricultures Familiales et Mondes", are available in full text. The approach presented focuses on the co-construction of concepts (ontology) and the development of a keyword indexing in graphical form (semantic mapping). The association of the two approaches has many interests and deserves to be deepened in order to improve the sharing of knowledge within research groups and their dissemination.