2,070 research outputs found
Ateliers métallurgiques dans l'habitat protohistorique du Fort-Harrouard
No full textMohen Jean-Pierre, Aufaure Cécile, Bouet Béatrice, Collin Véronique, Courty Marie-Agnès, Eluère Christiane, Maillard Catherine, Marguerie Dominique, Menu Michel, Queixalos I., Robbiola Luc, Verney Antoine, Walter Philippe. Ateliers métallurgiques dans l'habitat protohistorique du Fort-Harrouard. In: Bulletin de la Société préhistorique française, tome 86, n°10-12, 1989. Du terrain au laboratoire : Pour un meilleur dialogue en archéologie. pp. 404-408
Authorship in the Interstices of History, Biography, Reality and Memory: Histoire(s) du cinéma and Cabra Marcado para Morrer
No full textEste artigo contrasta Histoire(s) du cinéma de Jean-Luc Godard e Cabra Marcado Para Morrer de Eduardo Coutinho, estão engajadas com a questão da autoria no cinema. Enquanto a imagem de Godard enfatiza a capacidade que tem um filme de transmitir a visão de mundo pessoal de um artista, a presença de Coutinho na tela funciona menos como um meio de subjetivar a obra do que como um catalizador instigando cetas reações nos "atores" filmados
General understanding of outdoor bronze corrosion
No full textThis article aims to enhance the understanding of outdoor bronze alteration in light of a general model, take into account recent developments and according to exposure conditions (sheltered and unsheltered areas). The behaviour of the other alloying elements such as Sn, Zn and Pb is also mentioned. The importance of run-off effects inducing decuprification, the selective copper dissolution of bronze, is underlined on the basis of multi-scale investigation conducted both on natural patinas of outdoor monuments and on corrosion simulation performed in laboratory. A bronze disease affects
outdoor bronze: in sheltered areas, bronze corrosion proceeds from a cyclic phenomenon linked to the repeated action of combined runoff and rainfall events
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
De la laïcité à la française à la théorie normative de la religion (et retour).: Un entretien de Luc Foisneau avec Cécile Laborde
No full textThis interview with Cécile Laborde was conducted by Luc Foisneau in Aubervilliers on 13th April 2023. This interview has been published on the website Politika.io in French and English versions. In addition to Critical Republicanism (Oxford 2008) and a collective volume with John Maynor, Republicanism and Political Theory (Blackwell 2008), Cécile Laborde is the author of Liberalism's Religion (Harvard 2017). She's a Fellow of the British Academy and of the Royal Academy of Belgium.Cet entretien avec Cécile Laborde a été réalisé par Luc Foisneau à Aubervilliers le 13 avril 2023. Cet entretien a été publié sur le site Politika.io en versions française et anglaise. Outre Critical Republicanism (Oxford 2008) et un volume collectif avec John Maynor, Republicanism and Political Theory (Blackwell 2008), Cécile Laborde est l'auteur de Liberalism's Religion (Harvard 2017). Elle est membre de la British Academy et de l'Académie royale de Belgique
A Canonical Form for PROV Documents: Dataset Underpinning Evaluation
No full textDataset supporting:
Luc Moreau (2017) A Canonical Form for PROV Documents and its Application to Equality, Signature, and Validation. ACM Transactions on Internet Technology.
We present a canonical form for PROV that is a normalized way of representing PROV documents as mathematical expressions. As opposed to the normal form specified by the PROV-CONSTRAINTS recommendation, the canonical form we present is defined for all PROV documents, irrespective of their validity, and it can be serialized in a unique way. The paper makes the case for a canonical form for PROV and its potential uses, namely: comparison of PROV documents in different formats, validation, and signature of PROV documents. A signature of a PROV document allows the integrity and the author of provenance to be ascertained; since the signature is based on the canonical form, these checks are not tied to a particular encoding, but can be performed on any representation of PROV.</span
Inhibiting effects of some Schiff bases on the corrosion of bronze exposed to artificial acidic rain
No full textConservation of artistic heritage is of great importance for the future of the historical and
cultural identity of a society. Both ancient and modern bronze artworks are an important part of this cultural heritage and the production of effective and environmentally satisfactory protective treatments is a central and still unresolved issue. The M-ERA.NET project named B-IMPACT (Bronze-IMproved non-hazardous PAtina CoaTings) operates in this context and aims at developing innovative, eco-friendly and non-hazardous protective coatings for bronze surfaces exposed to the outdoor environment.
This research has the objective to identify new effective bronze corrosion inhibitors for the
future entrapment in surface coatings so giving a contribution to the development of alternative efficient surface treatments.
A number of organic compounds proved to be good corrosion inhibitors for copper [1-5], but mainly azoles, such as triazoles [6-8], tetrazoles [6,9], imidazoles [10] and thiadiazoles [6,9,11], were tested for bronze protection. Mostly benzotriazole (BTA) and triazole derivatives were used and applied in the conservation field [6,8], although there are toxicity and perhaps human carcinogenicity concerns due to their handling and leaching in the environment [12,13]. Some Schiff bases derivatives are claimed to be efficient [1,3,14,15] and environment friendly [1] inhibitors of copper corrosion in acid and neutral chloride solution. For these reasons, some specifically synthesized Schiff bases were tested by electrochemical methods, as BTA alternative inhibitors of bronze corrosion, during exposures to concentrated acidic rain. The inhibition mechanism of the most efficient substance was also studied by surface analyses methods (Scanning Electron Microscope (SEM) observations, Raman and X-Ray Photoelectron Spectroscopy (XPS)
Lingots de plomb et barres de fer des épaves romaines des Saintes-Maries-de-la-Mer (Bouches-du-Rhône, France) : Questions de traçabilité comparée
No full textFerrous and non-ferrous metal provenance studies are always handled in disconnected ways. In spite of two clearly different metallurgies, there are nevertheless some methodological and analytical similarities. It is precisely through the study of two types of metallic materials, lead and iron produced and commercialized during Antiquity, that certain aspects of the tracing will be discussed and compared between ferrous and non-ferrous metals. Through the research of the origin of lead ingots and iron bars of the Roman wrecks of Les Saintes-Maries-de-la-Mer, we shall deal with the importance of the geologic knowledge of ores sources, the notions of heritage, partition and pollution of chemical elements through the metallurgical chaîne opératoire, but also with possible convergences of some analytical developments.Les études de traçabilité des métaux ferreux et non ferreux sont toujours traitées de manière parallèle et imperméable. Malgré deux métallurgies clairement différentes, il existe pourtant des similitudes dans les approches méthodologiques et analytiques. C’est à travers l’étude, justement, de deux types de matériaux métalliques, le plomb et le fer produits et commercialisés dans l’Antiquité, que seront discutés certains aspects de la traçabilité entre ferreux et non ferreux. À travers la recherche de provenance des lingots de plomb et des barres de fer des épaves romaines des Saintes-Maries-de-la-Mer, il sera question de l’importance de la connaissance géologique des minerais sources, des notions d’héritage, de partage et de pollution d’éléments chimiques tout au long de la chaîne opératoire des métaux, mais aussi de possibles convergences de développements analytiques.Baron Sandrine, Coustures Marie-Pierre, Béziat Didier, Guérin Mathilde, Huez Juliette, Robbiola Luc. Lingots de plomb et barres de fer des épaves romaines des Saintes-Maries-de-la-Mer (Bouches-du-Rhône, France) : Questions de traçabilité comparée. In: Revue archéologique de Narbonnaise, tome 44, 2011. pp. 71-97
HISTOIRE D'UNE HACHE A DOUILLE DE L'AGE DU BRONZE OU UNE AUTRE VISION DE LA CORROSION DES BRONZES ARCHEOLOGIQUES
No full textAutorisation ARAAFU (Editeur) en date du 24 juin 2010 (Conseil d'Administration de l'Association) - ref. Mail de MA LInternational audienceThis article describes the main phenomena of alteration of archaeological bronzes. The approach is unconventional, the author has decided to resort to an object in bronze: an ax socket dated from Bronze Age. Several key issues are well addressed through this example. The steps of the archaeological object - from conception to current state - the main surface transformation, the corrosion mechanisms and diagnosis of surface states are in turn described and illustrated.Cet article décrit les principaux phénomènes d'altération des bronzes archéologiques. La démarche suivie est peu conventionnelle, l'auteur ayant décidé de faire parler un objet en bronze : une hache à douille de l'âge du bronze. Plusieurs points essentiels sont ainsi abordés à travers cet exemple. Les étapes de l'objet archéologique - de la conception à l'état actuel -, les principales altérations, les mécanismes de corrosion puis le diagnostic des états de surface sont tour à tour décrits et illustrés
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