Search results for "Artefact"

Non-invasive characterization of archaeological polychrome pottery and metallic artefacts: advantage and limits of XRF in situ analysis

2014

Le site néolithique final de la Bastide Blanche (Peyrolles-en-Provence, Bouches-du-Rhône) : Premiers résultats 2003-2004

2006

The Bastide Blanche (Peyrolles-en-Provence, Bouches-du-Rhône) is a small settlement perched in edge of the Durance where the principal occupation is ascribable to the extreme end of the Neolithic era. Recognized in the past, it was the subject of multiple excavations but of any study nor of any specific publication. A survey campaign and a first excavation campaign programmed in 2003 and 2004 make it possible today to specify the homogeneity of the assemblies often mentioned in the scientific literature. Beyond the first description of the structures and archaeological furniture put at the day, this short note makes it possible to announce the existence of a sequence for the Rhone-Ouvèze gr…

Narrating Selves amid Library Shelves : Literary Mediation and Demediation in S. by J. J. Abrams and Doug Dorst

2019

This essay focuses on the various forms of narrating, mediating, and interpreting selves within and around a book object, the novel S. (2013) by J. J. Abrams and Doug Dorst. The novel S. is an experiment in producing a deceivingly realistic replica of a maltreated library book object, but its discursive practices also rely on familiar literary forms, harking back to epistolary commonplaces, as well as to marginalia, both ancient and modern. The book object S., which carries the text of the novel-within-a-novel, the readers' multilayered markings, and paraphernalia, forms an archive dramatizing the workings of memory, thought, and emotion. That archive also demonstrates how the characters co…

Automatic Quality Assessment of Cardiac MR Images with Motion Artefacts using Multi-task Learning and K-Space Motion Artefact Augmentation

2022

The movement of patients and respiratory motion during MRI acquisition produce image artefacts that reduce the image quality and its diagnostic value. Quality assessment of the images is essential to minimize segmentation errors and avoid wrong clinical decisions in the downstream tasks. In this paper, we propose automatic multi-task learning (MTL) based classification model to detect cardiac MR images with different levels of motion artefact. We also develop an automatic segmentation model that leverages k-space based motion artefact augmentation (MAA) and a novel compound loss that utilizes Dice loss with a polynomial version of cross-entropy loss (PolyLoss) to robustly segment cardiac st…

Drawings, Gestures and Discourses: A Case Study with Kindergarten Students Discovering Lego Bricks

2020

This paper presents a study aimed at investigating the didactic potentiality of the use of an artefact, useful to construct mathematical meanings concerning the coordination of different points of view, in the observation of a real object/toy. In our view, the process of meaning construction can be fostered by the use of adequate artefacts, but it requires a teaching/learning model, which explicitly takes care of the evolution of meanings, from those personal, emerging through the activities, to the mathematical ones, aims of the teaching intervention. The main hypothesis of this study is that the alternation between different semiotic systems, graphical system, verbal system and system of …

Identification of Precious Artefacts and Stones: The sonic Imprint

2008

The Sonic Imprint to identify and monitor precious artefacts: further developments

2008

A new non-invasive technique, developed to univocally identify and monitor the integrity of precious artefacts, like potteries, statues and objects, generally made of stone, metal or wood, has been already presented (2). This technique responds to the demand, especially felt among museum managers, of an art collection cataloguing which allows the identification of artefacts and the assessment of their physical conditions. This is also linked to the international loan of precious artefacts, which are then subjected to transport stresses and to the connected risks (damages, substitutions, physical deterioration, etc.). Furthermore, in these days many art exhibitions are itinerant, and the art…

Petrographic characterization of quartzite tools from the Palaeolithic site of San Teodoro cave (Sicily): Study on the provenance of lithic raw mater…

2022

A petrographic characterization has been used here, for the first time, in the study of lithic raw materials exploited in prehistoric Sicily. Our research interests one of the oldest archaeological sites with evidence of the early human peopling of the island (∼15kyr ago): San Teodoro Cave, in northeastern Sicily. Two geological Formations, Numidian and Monte Soro Flysch gave origin to well-rounded pebbly quartzite elements scattered in the marine terraces surrounding the cave and likely exploited as one of the sources of the raw materials for the production of lithic tools by the Epigravettian communities having settled the place. The preference for one of the two qualities of quartzite is…

International Vocational Education and Training Research: An Introduction to the Special Issue

2021

The seven articles in this special issue represent a wide range of international comparative and review studies by international research teams from China, Germany, India, Russia, Switzerland and Mexico. The presented projects are part of the national program "Research on the Internationalisation of Vocational Education and Training", funded by the German Federal Ministry of Education and Research (BMBF). An adapted version of Urie Bronfenbrenner���s ecological systems theory forms the conceptual framework of the special issue. The four system levels (micro, meso, exo and macro) are addressed by one article each. The article on the microsystem level focuses on the intended and implemented c…

Characterization of the metal artefacts of the two craft-quarters of the roman vicus Bliesbruck (Moselle)

2014

Diese Arbeit ist ein vollständiges Studium der Metallfunde aus den zwei Handwerkervierteln von Bliesbruck (Moselle, Frankreich). Diese Funde stammen aus vierzigjahrelangen Ausgrabungen. Das Korpus besteht aus 450 Kg Metall (Eisen, Kupferlegierungen, weisse Metalle, Gold) wovon 4 200 Objekte und 22 000 Nägel. Eine Objekt- und Funktionsidentifizierung und eine typologische Nägelzahl haben es ermöglicht, die Objektverbindungen wieder zusammenzusetzen und die Daten nach verschiedenen Kriterien einander gegenüberzustellen : Metall, Lage (Viertel und Grundstück), Chronologie und Befundnummertyp. Diese Datenüberfülle und -verschiedenheit ermöglichen das Korpus nach vielartigen geographischen Maβst…