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International audience; Along with the study of the brain activity evoked by external stimuli, an important advance in current neuroscience involves understanding the spontaneous brain activity that occurs during resting conditions. Interestingly, the identification of the connectivity patterns in 'resting-state' has been the subject of a great number of electrophysiology-based studies. In this context, the Electroencephalography (EEG) source connectivity method enables estimating resting-state cortical networks from scalp-EEG recordings. However, there is still no consensus over a unified pipeline adapted in all cases (e.g., type of task, a priori on studied networks) and numerous methodological questions remain unanswered. In order to address this problem, we simulated, using neural mass models, EEG data corresponding to the default mode network (DMN), the most widely studied resting-state network, and tested the effect of different channel densities, two inverse solutions and two functional connectivity measures on the correspondence between the reconstructed networks and the reference networks. Results showed that increasing the number of electrodes enhances the accuracy of the network reconstruction, and that eLORETA/PLV led to better accuracy than other inverse solution/connectivity measure combinations in terms of the correlation between reconstructed and reference connectivity matrices. This work has a wide range of implications in the field of electrophysiology connectomics, and is a step towards a convergence and standardization of approaches in this emerging field. © 2022 IEEE.

5h International Symposium on Multidisciplinary Studies and Innovative Technologies, ISMSIT 2021 -- 21 October 2021 through 23 October 2021 -- Underground cables are affected by a many different factors, including the temperature distribution surrounding the cable, the depth of the cable, distances between the cables, the thermal resistivity of the soil, and the material the cable is backfilled. The study and analysis of these factors are exploited as much as possible to carry the maximum possible current through the power transmission cable. Calculations were made for single power cables with a flat configuration at a burial depth (0.8 and 1) meters, (0.8 and 1) km/w soil resistivity, (0.2 and 0.4 (meters)) distances between the cables, and two types of backfill materials: cement-sand mixture backfill (CSB) and thermal backfill for the Aluminum conductor. The proposed model can determine the temperature distribution in the soil, thermal backfill, and around cables. The results essentially show that appropriate thermal backfill, and spatial geometric characteristics are useful for reducing conductor temperature and securing a specific cost metric while being of exceptional importance to take full advantage of cable ampacity. © 2021 IEEE.

Svappavaara is a small Swedish mining town located above the Arctic Circle. Here, in the 1960s, Ralph Erskine had the opportunity to apply a scheme for a model Arctic town that he presented at CIAM'59. The concept for adapting modern housing, and commercial and community uses, to the harsh subarctic climate, envisaged a south facing town, to maximise exposure to the sun. A sequence of wall buildings on the northern outskirts of the town shielded northern winds. The only parts of Erskine's ambitious plan that he designed and that materialised were the 197 metres long wall building known as Ormen Långe (the Long Snake) and some smaller single-family houses. Focusing on the history of the apartment block, Ormen Långe, this paper will show the tensions and struggles between a modern architectural utopia and a local peripheral context. The shrinking population, together with a low appreciation and problematic maintenance, led to premature obsolescence of the building and half of it being demolished in 2010. Since then, new users have appeared on the scene. Following the refugee crisis, a number of immigrants from all over the world moved to and are now living in Svappavaara, including Ormen Långe. Even in its current mutilated condition, Ormen Långe is still a precious surviving element of Erskine's legacy in the northernmost part of Sweden. © of the edition, docomomo International © of the images, their authors and © of the texts, their authors. open access