Dichlorido[1-(2-chloro­eth­yl)-3-(pyridin-4-ylmethyl-κN)urea](η6-hexa­methyl­benzene)­ruthenium(II) chloro­form monosolvate

The RuII atom in the title compound, [RuCl2(C12H18)(C9H12ClN3O)]·CHCl3, exhibits a typical piano-stool coordination, defined by a hexa­methyl­benzene ligand, two chloride ligands and a pyridyl­urea ligand coordinated through the pyridine N atom. In the crystal, a dimeric structure is observed due to two strong N—H⋯Cl inter­actions between the NH groups of urea and the two chloride ligands of neighbouring mol­ecules. In addition, the C=O group of the urea moiety inter­acts with the solvent mol­ecule through weak C—H⋯O interactions

Maria José Casa-Nova, Etnografia e Produção de Conhecimento: Reflexões Críticas a Partir de Uma Investigação com Ciganos Portugueses

Esta obra de Maria José Casa-Nova representa a primeira parte da sua tese de doutoramento em antropologia social, onde a autora cruza uma sociologia e uma antropologia da educação e da cultura. A autora é professora de sociologia da educação e de imigração, minorias e interculturalidade no Departamento de Ciências Sociais da Educação do Instituto de Educa­ção da Universidade do Minho, tendo já vários trabalhos publicados (livros, capítulos de livro, artigos) nos domínios da etnicidade, género..

Robert Sommer, Das KZ-Bordell. Sexuelle Zwangsarbeit in nationalsozialistischen Konzentrationslagern [Le bordel du camp de concentration. Travail sexuel forcé dans les camps de concentration nationaux-socialistes]

 Cet ouvrage est issu de la thèse soutenue par Robert Sommer à l’Université Humboldt de Berlin en 2006. Il s’agit d’un travail entièrement original sur un sujet absent de la recherche, à l’exception de l’enquête pionnière de Christa Paul en 1994. Mais avant la somme de Robert Sommer on ne disposait d’aucune étude systématique de cette ampleur. C’est chose faite avec la minutie et la rigueur adéquates au genre. Par un décret du 9 septembre 1939, Reinhard Heydrich, chef de l’Office central de l..

Robert Sommer, Das KZ-Bordell. Sexuelle Zwangsarbeit in nationalsozialistischen Konzentrationslagern [Le bordel du camp de concentration. Travail sexuel forcé dans les camps de concentration nationaux-socialistes]

 Cet ouvrage est issu de la thèse soutenue par Robert Sommer à l’Université Humboldt de Berlin en 2006. Il s’agit d’un travail entièrement original sur un sujet absent de la recherche, à l’exception de l’enquête pionnière de Christa Paul en 1994. Mais avant la somme de Robert Sommer on ne disposait d’aucune étude systématique de cette ampleur. C’est chose faite avec la minutie et la rigueur adéquates au genre. Par un décret du 9 septembre 1939, Reinhard Heydrich, chef de l’Office central de l..

Résumé de la communication de Jean-Marie Auzias

Auzias appelle, sous forme interrogative plutôt que dogmatique, à ne pas perdre le point de vue anthropologique. Il demande qu’on étudie l’œuvre dans ses effets et dans son contexte. Il veut qu’on questionne l’urbanisme et la fête, pour replacer la culture dans son cadre. Il insiste sur les conséquences des heurts de cultures, à la fois destructeurs et féconds. Il mentionne les échanges entre culture savante et productions anonymes, traditions populaires. Les conditions concrètes d’existence ..

Situation de Gassendi

Si Gassendi est si peu pratiqué c’est qu’il resta l’homme de Digne. D’autre part, il exprime par sa philosophie le courant anticartésien donc anti-français, d’où sa disgrâce. Pourtant il fut un grand homme. Dans cette ville provençale plus que gueuse, mais non pas même parfumée, se forma, enseigna, vécut sa vie de prêtre et de chanoine, prédicant, disputant, chantant laudes et vêpres, dirigeant les affaires du clergé de France, polémiquant même avec le géant Descartes, un homme de science par..

Comprehensive analysis of synthetic learning applied to neonatal brain MRI segmentation

Brain segmentation from neonatal MRI images is a very challenging task due to large changes in the shape of cerebral structures and variations in signal intensities reflecting the gestational process. In this context, there is a clear need for segmentation techniques that are robust to variations in image contrast and to the spatial configuration of anatomical structures. In this work, we evaluate the potential of synthetic learning, a contrast-independent model trained using synthetic images generated from the ground truth labels of very few subjects.We base our experiments on the dataset released by the developmental Human Connectome Project, for which high-quality T1- and T2-weighted images are available for more than 700 babies aged between 26 and 45 weeks post-conception. First, we confirm the impressive performance of a standard Unet trained on a few T2-weighted volumes, but also confirm that such models learn intensity-related features specific to the training domain. We then evaluate the synthetic learning approach and confirm its robustness to variations in image contrast by reporting the capacity of such a model to segment both T1- and T2-weighted images from the same individuals. However, we observe a clear influence of the age of the baby on the predictions. We improve the performance of this model by enriching the synthetic training set with realistic motion artifacts and over-segmentation of the white matter. Based on extensive visual assessment, we argue that the better performance of the model trained on real T2w data may be due to systematic errors in the ground truth. We propose an original experiment combining two definitions of the ground truth allowing us to show that learning from real data will reproduce any systematic bias from the training set, while synthetic models can avoid this limitation. Overall, our experiments confirm that synthetic learning is an effective solution for segmenting neonatal brain MRI. Our adapted synthetic learning approach combines key features that will be instrumental for large multi-site studies and clinical applications