The role, opportunities and challenges of 3D and geo-ICT in archaeology

Archaeology joins in the trend of three-dimensional (3D) data and geospatial information technology (geo-ICT). Currently, the spatial archaeological data acquired is 3D and mostly used to create realistic visualizations. Geographical information systems (GIS) are used for decades in archaeology. However, the integration of geo-ICT with 3D data still poses some problems. Therefore, this paper clarifies the current role of 3D, and the opportunities and challenges for 3D and geo-ICT in the domain of archaeology. The paper is concluded with a proposal to integrate both trends and tackle the outlined challenges. To provide a clear illustration of the current practices and the advantages and difficulties of 3D and geo-ICT in the specific case of archaeology, a limited case study is presented of two structures in the Altay Mountains

Le Canada et la consolidation de la paix. La formulation d'une nouvelle approche pour la politique étrangère canadienne

Cet article présente l'approche canadienne sur la consolidation de la paix. L'objectif visé par notre analyse est de montrer comment le gouvernement canadien a développé ce concept dans le but d'en constituer un élément central de sa politique étrangère. Notre thèse est que la mise en oeuvre d'une expertise dans le domaine du peacebuilding permet aux décideurs canadiens de définir un nouveau créneau pour le Canada dans le domaine de la gestion des conflits intra-étatiques.This article examines the Canadian approach to peace building. Our analysis shows why and how Canada developed this new concept of peace building and adapted it to become a central goal of its foreign policy. Our thesis is that implementation of this approach allows Canadian decision-makers to explore new ways by which Canada can attempt retaining a leading role in the area of intrastate conflict management and resolution, a " niche "through which the Middle Power status of its foreign policy can be reasserted

Searching for thermal signatures of persistent currents in normal metal rings

We introduce a calorimetric approach to probe persistent currents in normal metal rings. The heat capacity of a large ensemble of silver rings is measured by nanocalorimetry under a varying magnetic field at different temperatures (60 mK, 100 mK and 150 mK). Periodic oscillations versus magnetic field are detected in the phase signal of the temperature oscillations, though not in the amplitude (both of them directly linked to the heat capacity). The period of these oscillations ($\Phi_0/2$, with $\Phi_0 = h/e$ the magnetic flux quantum) and their evolution with temperature are in agreement with theoretical predictions. In contrast, the amplitude of the corresponding heat capacity oscillations (several $k_{\mathrm{B}}$) is two orders of magnitude larger than predicted by theory

Spatiotemporal data as the foundation of an archaeological stratigraphy extraction and management system

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Spatio-temporal modeling of soil characteristics for soilscape reconstruction

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