1,067 research outputs found

    Birmanie

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    Since the 2021 military coup in Myanmar, peaceful protests and the subsequent repression have given way to a full-blown, protracted war between the State Administration Council (SAC) and a myriad of armed resistance groups, now operating across most of the country, and even controlling some significant parts of the territory. However, no clear military victory seems to be in sight for any party. From a political perspective, the SAC has announced elections would be held in 2023 — although unconfirmed, they might represent a possible exit for a junta faced with unprecedented challenges. Meanwhile, the political opposition seeks to roll out a parallel administration, but lacks the resources to gather steam and credibility, within a complex ethnic and political landscape. On the international stage, the SAC faces Western sanctions and even some level of isolation on the ASEAN stage. However, it is bolstering its re-engagement with some pragmatic partners —including Russia, another pariah power. Society as a whole is deeply impacted by the economic crisis, inflation, soaring poverty rates, brain drain, despair, and the criminalization of the economy. These long-term risks represent an additional constraint for any future political transition

    Highly dispersed Ptή+ on TixCe(1−x)O2 as an active phase in preferential oxidation of CO

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    Structure–activity relationships for 1 wt.% Pt catalysts were investigated for a series of TixCe(1−x)O2 (x = 1, 0.98, 0.9, 0.5, 0.2 and 0) supports prepared by the sol–gel method. The catalysts prepared by impregnation were characterized in detail by applying a wide range of techniques as N2-isotherms, XRF, XRD, Raman, XPS, H2-TPR, Drifts, UV–vis, etc. and tested in the preferential oxidation of CO in the presence of H2. Also several reaction conditions were deeply analyzed. A strong correlation between catalyst performance and the electronic properties let us to propose, based in all the experimental results, a plausible reaction mechanism where several redox cycles are involved.Financial support from Generalitat Valenciana and Ministerio de Economía y Competitividad (Spain) through projects PROME-TEOII/2014/004 and MAT2010-21147 is gratefully acknowledged. EOJ also thanks the CNPq – Brazil for her grant. EVRF gratefully acknowledge the Ministerio de Economía y Competitividad (Spain) for his Ramon y Cajal grant (RYC-2012-11427)

    Tissue iron distribution assessed by MRI in patients with iron loading anemias

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    Bone marrow, spleen, liver and kidney proton transverse relaxation rates (R2), together with cardiac R2* from patients with sickle cell disease (SCD), paroxysmal nocturnal hemoglobinuria (PNH) and non-transfusion dependent thalassemia (NTDT) have been compared with a control group. Increased liver and bone marrow R2 values for the three groups of patients in comparison with the controls have been found. SCD and PNH patients also present an increased spleen R2 in comparison with the controls. The simultaneous measurement of R2 values for several tissue types by magnetic resonance imaging (MRI) has allowed the identification of iron distribution patterns in diseases associated with iron imbalance. Preferential liver iron loading is found in the highly transfused SCD patients, while the low transfused ones present a preferential iron loading of the spleen. Similar to the highly transfused SCD group, PNH patients preferentially accumulate iron in the liver. A reduced spleen iron accumulation in comparison with the liver and bone marrow loading has been found in NTDT patients, presumably related to the differential increased intestinal iron absorption. The correlation between serum ferritin and tissue R2 is moderate to good for the liver, spleen and bone marrow in SCD and PNH patients. However, serum ferritin does not correlate with NTDT liver R2, spleen R2 or heart R2*. As opposed to serum ferritin measurements, tissue R2 values are a more direct measurement of each tissue's iron loading. This kind of determination will allow a better understanding of the different patterns of tissue iron biodistribution in diseases predisposed to tissue iron accumulation

    L’Asie du Sud-Est 2023 : bilan, enjeux et perspectives

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    Chaque annĂ©e, l’Institut de recherche sur l’Asie du Sud-Est contemporaine (IRASEC), basĂ© Ă  Bangkok, mobilise une vingtaine de chercheurs et d’experts pour mieux comprendre l’actualitĂ© rĂ©gionale de ce carrefour Ă©conomique, culturel et religieux, au cƓur de l’Indo-Pacifique. Cette collection permet de suivre au fil des ans l’évolution des grands enjeux contemporains de cette rĂ©gion continentale et archipĂ©lagique de plus de 680 millions d’habitants, et d’en comprendre les dynamiques d’intĂ©gration rĂ©gionale et de connectivitĂ©s avec le reste du monde. L’Asie du Sud-Est 2023 propose une analyse synthĂ©tique et dĂ©taillĂ©e des principaux Ă©vĂ©nements politiques et diplomatiques, ainsi que des Ă©volutions Ă©conomiques, sociales et environnementales de l’annĂ©e 2022 dans chacun des onze pays de la rĂ©gion. Ce dĂ©cryptage est complĂ©tĂ© pour chaque pays par un focus sur deux personnalitĂ©s de l’annĂ©e et une actualitĂ© marquante en image. L’ouvrage propose Ă©galement cinq dossiers thĂ©matiques qui abordent des sujets traitĂ©s Ă  l’échelle rĂ©gionale sud-est asiatique : les ressorts institutionnels de l’approche de santĂ© intĂ©grĂ©e One Health, le vieillissement de la population et sa prise en compte par les politiques publiques, les cĂąbles sous-marins au cƓur de la connectivitĂ© sud-est asiatique, l’amĂ©nagement du bassin du MĂ©kong et ses multiples acteurs, et les enjeux politiques et linguistiques des langues transnationales. Des outils pratiques sont Ă©galement disponibles : une fiche et une chronologie par pays et un cahier des principaux indicateurs dĂ©mographiques, sociaux, Ă©conomiques et environnementaux

    Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

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    A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements

    Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation