23 research outputs found

    Nonminimal Inflation on the Randall-Sundrum II Brane with Induced Gravity

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    We study an inflation model that inflaton field is non-minimally coupled to the induced scalar curvature on the Randall-Sundrum (RS) II brane. We investigate the effects of the non-minimal coupling on the inflationary dynamics of this braneworld model. Our study shows that the number of e-folds decreases by increasing the value of the non-minimal coupling. We compare our model parameters with the minimal case and also with recent observational data. In comparison with recent observation, we obtain a constraint on the values that the non-minimal coupling attains.Comment: 15 pages, 5 figure

    On the dissipative non-minimal braneworld inflation

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    We study the effects of the non-minimal coupling on the dissipative dynamics of the warm inflation in a braneworld setup, where the inflaton field is non-minimally coupled to induced gravity on the warped DGP brane. We study with details the effects of the non-minimal coupling and dissipation on the inflationary dynamics on the normal DGP branch of this scenario in the high-dissipation and high-energy regime. We show that incorporation of the non-minimal coupling in this setup decreases the number of e-folds relative to the minimal case. We also compare our model parameters with recent observational data.Comment: 32 pages, 6 figures. arXiv admin note: substantial text overlap with arXiv:1001.044

    HistĂłrias em IntercompreensĂŁo: a voz dos autores

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    Este relatĂłrio foi elaborado no Ăąmbito do lote 7 (Inserção Curricular da IntercompreensĂŁo) do projeto MIRIADI. Trata-se de um lote cujo objetivo Ă© desenvolver processos de integração curricular da IntercompreensĂŁo (IC) Ă  distĂąncia em grupos plurilingues, a partir de trabalhos experimentais levados a cabo no terreno e realizados numa lĂłgica de investigação-ação, tendo em vista compreender as “condiçÔes de exequibilidade” desta abordagem didĂĄtica nos curricula de aprendizagem de lĂ­nguas e de formação. Procura-se, em particular, identificar empiricamente permeabilidades e resistĂȘncias dos contextos e dos atores educativos face Ă  IC como conceito prĂĄtico com relevĂąncia profissional, bem como vantagens e limites do ponto de vista da aprendizagem linguĂ­stica que possam justificar o seu valor educativo. A IntercompreensĂŁo tem vindo, nas Ășltimas dĂ©cadas, a percorrer um percurso de destaque em DidĂĄtica de LĂ­nguas (sobretudo Estrangeiras) na Europa e fora dela, em particular no Ăąmbito das atuais abordagens plurais, ocupando um lugar de visibilidade nos discursos e prĂĄticas de investigação e formação desta disciplina e contribuindo para a tonalidade da sua voz mais propriamente politico-ideolĂłgica (AlarcĂŁo, Andrade, AraĂșjo e SĂĄ, Melo-Pfeifer & Santos, 2009). Contudo, a presença do conceito nos espaços concretos de educação em lĂ­nguas (tais como escolas, liceus, universidades e outras instituiçÔes) Ă© extremamente dĂ©bil, limitando-se a algumas experiĂȘncias pontuais, sob o impulso (e mesmo a condução), na maior parte dos casos, dos investigadores e tendo como finalidade principal a produção de conhecimento didĂĄtico (Degache & Tavares, 2011). Assim, pouco se sabe ainda do que pode ser efetivamente o contributo da IC para o projeto educativo das instituiçÔes, e muito menos do modo como o conceito pode ser integrado em prĂĄticas curriculares continuadas e sistemĂĄticas de educação em lĂ­nguas, sabendo-se que estas mesmas prĂĄticas sĂŁo reguladas por mĂșltiplas instĂąncias, internas e externas, objetivas e subjetivas, que atuam a vĂĄrios nĂ­veis (macro, meso, micro) e que nĂŁo podem deixar de ser consideradas. O lote 7 de Miriadi propĂ”e abordar estas questĂ”es, relativas Ă  integração curricular da IC, a partir de uma outra lĂłgica epistemolĂłgica, uma lĂłgica que nĂŁo busca propostas desenhadas a partir dos resultados da investigação e orientadas para a transferĂȘncia do conhecimento, ou seja, que nĂŁo reflete uma perspetiva aplicacionista do saber didĂĄtico. Ao invĂ©s, o trabalho realizado por este lote entende o currĂ­culo como uma construção dinĂąmica que se (re)define e se (re)negocia em função dos contextos especĂ­ficos em que ocorre, atribuindo-lhe por conseguinte uma natureza contingente, situada, intersubjetiva e local. Nesta perspetiva sĂłcio-construtivista, em que o currĂ­culo Ă© uma co-construção que ocorre entre sujeitos precisos nas suas açÔes educativas quotidianas, a integração curricular da IC produz-se no Ăąmbito destas açÔes, ou, dito de outra forma, atravĂ©s de prĂĄticas situadas nas especificidades e possibilidades que oferecem os contextos concretos, em particular os sujeitos que deles fazem parte. Esta perspetiva de trabalho do lote 7 parece-nos ser a mais coerente com o posicionamento teĂłrico relativamente Ă  IC enquanto conceito didĂĄtico do projeto MIRIADI. Com efeito, estĂĄ amplamente estudado que a IC tem vindo a ser tratada segundo diferentes pontos de vista, de acordo com as escolas epistemolĂłgicas e as proveniĂȘncias e ancoragens disciplinares dos seus autores (para uma revisĂŁo recente, ver AraĂșjo e SĂĄ, 2013; Olliver, 2013). No Ăąmbito do percurso especĂ­fico de investigação/formação/intervenção do grupo e-Gala (www.e-gala.eu), no seio do qual emergiu MIRIADI, em particular das suas mais disseminadas realizaçÔes – as plataformas Galanet (www.galanet.eu) e Galapro (www-galapro.eu/sessions) -, a IC Ă© abordada numa perspetiva socio-construtivista do saber e da relação comunicativa. Dito de outra forma, MIRIADI define a IC como um processo e uma prĂĄtica interacional que ocorre entre sujeitos, atores sociais que vivem em diferentes lĂ­nguas e que se implicam coletivamente num quadro dialĂłgico “oĂč le grand enjeu devient la construction d’un territoire de parole partagĂ©â€ (AraĂșjo e SĂĄ, Degache & Spita, 2010: 26). Esta aceção interacionista (e plurilingue e intercultural) Ă© complementada pelo recurso a meios de comunicação tecnolĂłgicos. Definido o enquadramento conceptual e metodolĂłgico do lote7, importa agora explicitar como se desenvolveu o trabalho ao longo dos seus 36 meses de execução. O lote organizou-se em 3 grandes etapas, que envolveram toda a equipa: Etapa 1. Identificação e caracterização de contextos de ensino e formação linguĂ­stica suscetĂ­veis de poderem beneficiar de uma integração curricular da IC (plurilingue e Ă  distĂąncia) (os resultados desta etapa encontram-se na Prestation 7.1. do projeto, referida na nota anterior). Etapa 2. Planificação e desenvolvimento de mĂșltiplas e diversificadas iniciativas de divulgação da IC nesses mesmos contextos, destinadas Ă  comunidade educativa na generalidade (pĂșblicos, professores/formadores, ĂłrgĂŁos de gestĂŁo, funcionĂĄrios, etc.), tendo em vista a sua familiarização com a IC enquanto conceito didĂĄtico e prĂĄtica de educação em lĂ­nguas, de modo a criar condiçÔes (e aberturas) para a sua integração curricular; uma atenção especial foi dada Ă  formação dos agentes educativos. Etapa 3. Planificação, experimentação e avaliação, numa lĂłgica de investigação-ação e em rede (aproveitando-se as potencialidades das plataformas Galapro e Galanet), de propostas de integração curricular da IC; pretendia-se, em especial, com estas propostas, identificar contributos da IC para a qualidade dos projetos educativos dos contextos de integração caracterizados (na etapa 1), mas tambĂ©m constrangimentos, fragilidades, obstĂĄculos e resistĂȘncias, numa abordagem crĂ­tica do conceito que fosse sensĂ­vel Ă s propriedades dos espaços-alvo de educação em lĂ­nguas. Neste sentido, foram recolhidos, analisados e discutidos, em função das suas caracterĂ­sticas contextuais (definidas na etapa 1), dados empĂ­ricos de natureza diversa (produçÔes dos alunos, transcriçÔes de excertos de aulas, testemunhos espontĂąneos de alunos e professores, respostas a questionĂĄrios, entre outros). Este Rapport Ă© um produto da Etapa 3. Trata-se de um documento multimĂ©dia, que pretende dar acesso sistematizado e crĂ­tico aos discursos e vozes de sujeitos reais que experienciaram propostas didĂĄticas concretas de IC elaboradas durante esta etapa do lote. Mais concretamente, este relatĂłrio oferece 6 narrativas de estudos de caso (3 em contexto de ensino secundĂĄrio e outros 3 no ensino superior), realizados em vĂĄrios paĂ­ses (Brasil, França, ItĂĄlia Portugal e RepĂșblica da MaurĂ­cia), contendo uma descrição detalhada das situaçÔes educativas experimentadas e uma anĂĄlise dos dados recolhidos, com apresentação dos recursos e materiais utilizados e testemunhos dos sujeitos concretos (professores e alunos). Incluem-se igualmente os instrumentos de recolha de dados e alguns exemplos dos mesmos. Cada narrativa obedece a uma mesma estrutura discursiva, de forma a mais facilmente poderem ser comparĂĄveis, permitindo a extração de conclusĂ”es transversais aos vĂĄrios estudos: introdução; descrição do contexto de intervenção; descrição da intervenção (objetivos, atividades, com acesso aos recursos utilizados, e avaliação); resultados obtidos; conclusĂ”es e implicaçÔes A secção final, “TĂ©moignages”, apresenta-se sob a forma de um conjunto de vĂ­deos e podcasts, identificados de acordo com a instituição parceira do projeto que os recolheu e organizados segundo trĂȘs critĂ©rios: ‱ as lĂ­nguas dos locutores (espanhol, francĂȘs, italiano e portuguĂȘs); ‱ os contextos de formação onde decorreram as experiĂȘncias de IC (ensino secundĂĄrio e ensino universitĂĄrio); ‱ o tipo de intervenientes nas experiĂȘncias de IC (alunos ou professores). Assume-se mais uma vez, neste Rapport, as dinĂąmicas de trabalho plurilingue da equipa Miriadi, cuja rentabilidade para a produção do conhecimento didĂĄtico foi analisada e evidenciada no Ăąmbito de projetos anteriores (ver Melo-Pfeifer, 2014) e se encontra ilustrada, numa outra linguagem, nos nossos postais (disponĂ­veis no Facebook). Assim, com exceção desta introdução, que foi traduzida para francĂȘs (ver acima), o documento encontra-se nas lĂ­nguas de trabalho dos membros da equipa que o redigiram.Ce rapport a Ă©tĂ© prĂ©parĂ© par le lot 7 (Insertion Curriculaire de l’IntercomprĂ©hension) du projet MIRIADI. Il s'agit d'un lot dont l’objectif est de dĂ©velopper des processus d’intĂ©gration curriculaire de l’IntercomprĂ©hension (IC) Ă  distance dans des groupes plurilingues, Ă  partir de travaux expĂ©rimentaux menĂ©s sur le terrain et rĂ©alisĂ©s dans une logique de recherche-action, pour comprendre les "conditions de faisabilitĂ©" de cette approche didactique dans les programmes d'apprentissage et de formation. Il est question, en particulier, d'identifier empiriquement des permĂ©abilitĂ©s et des rĂ©sistances des contextes (abordĂ©s Ă  partir d’une approche holistique) et des acteurs Ă©ducatifs confrontĂ©s Ă  l’IC en tant que concept pratique Ă  visĂ©e professionnelle. L'intercomprĂ©hension a, au cours des derniĂšres dĂ©cennies, rĂ©alisĂ© un parcours marquant dans l'enseignement des Langues (principalement ÉtrangĂšres) en Europe et en dehors, en particulier dans le contexte des approches plurielles, occupant une place de grande visibilitĂ© dans les discours et dans les pratiques de recherche et de formation de cette discipline et lui apportant une nette tonalitĂ© idĂ©ologique qui contribue pour la dĂ©finition de sa voix politique (AlarcĂŁo, Andrade, AraĂșjo e SĂĄ, Melo-Pfeifer & Santos, 2009). Cependant, la circulation du concept sur les terrains de l'Ă©ducation en langues (tels que les Ă©coles, les collĂšges, les universitĂ©s et autres institutions) est trĂšs faible, limitĂ©e Ă  quelques expĂ©riences ponctuelles, sous l'impulsion (et mĂȘme la conduite), dans la plupart cas, des chercheurs, le but principal Ă©tant la production du savoir didactique (Degache & Tavares, 2011). Ainsi, on en sait peu sur ce que peut effectivement ĂȘtre la contribution de l'IC pour le projet Ă©ducatif des Ă©tablissements d'enseignement, et encore moins sur la maniĂšre dont elle peut ĂȘtre intĂ©grĂ©e dans les pratiques curriculaires continues et systĂ©matiques en langues, sachant que ces mĂȘmes pratiques sont rĂ©glementĂ©es par plusieurs instances, internes et externes, objectives et subjectives, qui agissent Ă  diffĂ©rents niveaux (macro, mĂ©so, micro) et qui ne peuvent manquer d'ĂȘtre prises en considĂ©ration. Le lot 7 de Miriadi propose d’aborder ces questions, liĂ©es Ă  l'intĂ©gration curriculaire de l’IC, Ă  partir d'une autre logique Ă©pistĂ©mologique : une logique qui ne cherche pas des propositions obtenues Ă  partir des rĂ©sultats de la recherche et orientĂ©es vers le transfert de connaissance, c'est-Ă -dire qui ne reflĂšte pas une perspective applicationniste du savoir didactique. Dans un autre sens, on comprend le curriculum comme une construction dynamique qui se fait entre des sujets dans leurs activitĂ©s Ă©ducatives quotidiennes et qui se (re)dĂ©finit et se (re)nĂ©gocie selon les contextes, lui donnant un caractĂšre contingent, situĂ©, intersubjectif et local. Dans cette perspective socio-constructiviste, l'intĂ©gration curriculaire de l’IC se produit dans ces activitĂ©s, Ă  travers des pratiques situĂ©es dans les spĂ©cificitĂ©s et les possibilitĂ©s offertes par les contextes concrets, en particulier par les sujets qui les construisent. Cette approche de travail du lot 7 nous semble ĂȘtre la plus cohĂ©rente par rapport au positionnement thĂ©orique de l’IC en tant que concept didactique du projet MIRIADI. En effet, il est largement connu que l'IC est abordĂ©e selon diffĂ©rents points de vue, dĂ©pendants des Ă©coles Ă©pistĂ©mologiques et des origines et ancrages disciplinaires de leurs auteurs (pour une rĂ©vision, voir AraĂșjo e SĂĄ, 2013; Olliver, 2013 ). Dans le parcours spĂ©cifique du groupe de recherche / formation / intervention e-Gala (www.e-gala.eu), duquel a Ă©mergĂ© MIRIADI, et en particulier de ses rĂ©alisations les plus rĂ©pandues Galanet (www.galanet.eu) et Galapro (www-galapro.eu/sessions), l’IC est abordĂ©e dans une perspective socio-constructiviste du savoir et de la relation communicative, c'est-Ă -dire comme un processus et une pratique interactionnelle qui se produit entre individus, acteurs sociaux qui vivent dans diffĂ©rentes langues et qui s’ impliquent collectivement dans un cadre dialogique “oĂč le grand enjeu devient la construction d’un territoire de parole partagĂ©â€ (AraĂșjo e SĂĄ, Degache & Spita, 2010: 26). Ce sens interactionnel (et plurilingue et interculturel) est complĂ©tĂ© par l'utilisation de la communication technologique. L’encadrement conceptuel et mĂ©thodologique du lot 7 Ă©tant dĂ©fini, nous prĂ©sentons maintenant le plan de travail du lot au cours de ses 36 mois de mise en Ɠuvre. Le lot a Ă©tĂ© organisĂ© en trois grandes Ă©tapes, qui ont impliquĂ© la participation de toute l'Ă©quipe: Étape 1. Identification et caractĂ©risation des contextes d'enseignement et de formation linguistique susceptibles de bĂ©nĂ©ficier d'une intĂ©gration curriculaire de l'IC (plurilingue et Ă  distance) (les rĂ©sultats de cette Ă©tape se trouvent dans la Prestation 7.1. du projet, voir note antĂ©rieure). Étape 2. Planification et dĂ©veloppement de multiples initiatives de diffusion de l’IC dans ces contextes, adressĂ©es Ă  la communautĂ© Ă©ducative en gĂ©nĂ©ral (publics-cibles, enseignants / formateurs, organes de gestion, autres personnels, etc.), afin de se familiariser avec l'IC en tant que concept didactique et pratique d’éducation en langues, de maniĂšre Ă  crĂ©er les conditions (et ouvertures) pour son intĂ©gration curriculaire; une attention particuliĂšre est accordĂ©e Ă  la formation des agents Ă©ducatifs. Étape 3. Planification, expĂ©rimentation et Ă©valuation, dans une logique de recherche-action et de mise en rĂ©seau, de propositions d'intĂ©gration curriculaire de l’IC; il visait, en particulier, avec ces propositions, identifier non seulement les contributions de l’IC Ă  la qualitĂ© des projets Ă©ducatifs des contextes d'intĂ©gration caractĂ©risĂ©s (dans l’étape 1), mais aussi les contraintes, les faiblesses, les obstacles et les rĂ©sistances, dans une approche critique du concept qui soit sensible aux spĂ©cificitĂ©s des espaces-cible de l'Ă©ducation en langues. En ce sens, des donnĂ©es empiriques de nature diverse (productions d’étudiants, tĂ©moignages d'Ă©tudiants et d'enseignants, rĂ©ponses Ă  des questionnaires, transcriptions d’extraits de cours, entre autres) ont Ă©tĂ© recueillies, analysĂ©es et discutĂ©es, en fonction de leurs caractĂ©ristiques contextuelles (dĂ©finis Ă  l'Ă©tape 1). Ce Rapport est un produit de l'Ă©tape 3. Il s’agit d’un document multimĂ©dia qui donne accĂšs aux discours et voix des sujets rĂ©els qui ont expĂ©rimentĂ© les propositions didactiques de l’IC dĂ©veloppĂ©s au cours de cette derniĂšre Ă©tape du lot. En particulier, ce rapport propose six rĂ©cits d'Ă©tudes de cas (3 dans un contexte d’enseignement secondaire et 3 autres dans l'enseignement supĂ©rieur), menĂ©es dans divers pays (BrĂ©sil, France, Italie, Portugal et la RĂ©publique de Maurice), contenant une description dĂ©taillĂ©e des situations Ă©ducatives expĂ©rimentĂ©es et une analyse des donnĂ©es recueillies, avec la prĂ©sentation des ressources et des matĂ©riaux utilisĂ©s et des tĂ©moignages de sujets (enseignants et Ă©tudiants). Il comprend Ă©galement des outils de collecte de donnĂ©es et quelques exemples de celles-ci. Chaque rĂ©cit suit la mĂȘme structure du discours, afin qu'ils puissent ĂȘtre plus facilement comparĂ©s, permettant l’obtention de conclusions transversales aux diffĂ©rentes Ă©tudes: introduction; description du contexte d'intervention; description de l'intervention (objectifs, activitĂ©s, avec accĂšs aux ressources utilisĂ©es, et Ă©valuation); rĂ©sultats obtenus; conclusions et implications La derniĂšre section, "TĂ©moignages", se prĂ©sente sous la forme d'un ensemble de vidĂ©os et de podcasts, identifiĂ©s conformĂ©ment Ă  l'institution partenaire du projet qui les a recueilli et organisĂ©s selon trois critĂšres: ‱ les langues des locuteurs (espagnol, français, italien et portugais); ‱ les contextes de formation oĂč ont eu lieu les expĂ©riences de l’lC (enseignement secondaire et universitaire); ‱ le type d’intervenants dans les expĂ©riences d’IC (Ă©tudiants ou enseignants). Dans ce Rapport, nous assumons les dynamiques de travail plurilingue de l’équipe Miriadi, dont la rentabilitĂ© pour la production de la connaissance didactique a Ă©tĂ© analysĂ©e et dĂ©montrĂ©e dans le cadre de projets antĂ©rieurs (voir Melo-Pfeifer, 2014) et qui a Ă©tĂ© illustrĂ©, dans un autre langage, dans nos cartes-postales (disponibles sur Facebook). Ainsi, Ă  l’exception de cette Introduction, qui a Ă©tĂ© traduite du portugais, ce document se trouve rĂ©digĂ© dans les langues de travail des membres de l’équipe qui l’ont Ă©laborĂ©

    SARS-CoV-2 susceptibility and COVID-19 disease severity are associated with genetic variants affecting gene expression in a variety of tissues

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    Variability in SARS-CoV-2 susceptibility and COVID-19 disease severity between individuals is partly due to genetic factors. Here, we identify 4 genomic loci with suggestive associations for SARS-CoV-2 susceptibility and 19 for COVID-19 disease severity. Four of these 23 loci likely have an ethnicity-specific component. Genome-wide association study (GWAS) signals in 11 loci colocalize with expression quantitative trait loci (eQTLs) associated with the expression of 20 genes in 62 tissues/cell types (range: 1:43 tissues/gene), including lung, brain, heart, muscle, and skin as well as the digestive system and immune system. We perform genetic fine mapping to compute 99% credible SNP sets, which identify 10 GWAS loci that have eight or fewer SNPs in the credible set, including three loci with one single likely causal SNP. Our study suggests that the diverse symptoms and disease severity of COVID-19 observed between individuals is associated with variants across the genome, affecting gene expression levels in a wide variety of tissue types

    Gaia Early Data Release 3: Structure and properties of the Magellanic Clouds

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    We compare the Gaia DR2 and Gaia EDR3 performances in the study of the Magellanic Clouds and show the clear improvements in precision and accuracy in the new release. We also show that the systematics still present in the data make the determination of the 3D geometry of the LMC a difficult endeavour; this is at the very limit of the usefulness of the Gaia EDR3 astrometry, but it may become feasible with the use of additional external data. We derive radial and tangential velocity maps and global profiles for the LMC for the several subsamples we defined. To our knowledge, this is the first time that the two planar components of the ordered and random motions are derived for multiple stellar evolutionary phases in a galactic disc outside the Milky Way, showing the differences between younger and older phases. We also analyse the spatial structure and motions in the central region, the bar, and the disc, providing new insights into features and kinematics. Finally, we show that the Gaia EDR3 data allows clearly resolving the Magellanic Bridge, and we trace the density and velocity flow of the stars from the SMC towards the LMC not only globally, but also separately for young and evolved populations. This allows us to confirm an evolved population in the Bridge that is slightly shift from the younger population. Additionally, we were able to study the outskirts of both Magellanic Clouds, in which we detected some well-known features and indications of new ones

    Detailed stratified GWAS analysis for severe COVID-19 in four European populations

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    Given the highly variable clinical phenotype of Coronavirus disease 2019 (COVID-19), a deeper analysis of the host genetic contribution to severe COVID-19 is important to improve our understanding of underlying disease mechanisms. Here, we describe an extended genome-wide association meta-analysis of a well-characterized cohort of 3255 COVID-19 patients with respiratory failure and 12 488 population controls from Italy, Spain, Norway and Germany/Austria, including stratified analyses based on age, sex and disease severity, as well as targeted analyses of chromosome Y haplotypes, the human leukocyte antigen region and the SARS-CoV-2 peptidome. By inversion imputation, we traced a reported association at 17q21.31 to a ~0.9-Mb inversion polymorphism that creates two highly differentiated haplotypes and characterized the potential effects of the inversion in detail. Our data, together with the 5th release of summary statistics from the COVID-19 Host Genetics Initiative including non-Caucasian individuals, also identified a new locus at 19q13.33, including NAPSA, a gene which is expressed primarily in alveolar cells responsible for gas exchange in the lung.S.E.H. and C.A.S. partially supported genotyping through a philanthropic donation. A.F. and D.E. were supported by a grant from the German Federal Ministry of Education and COVID-19 grant Research (BMBF; ID:01KI20197); A.F., D.E. and F.D. were supported by the Deutsche Forschungsgemeinschaft Cluster of Excellence ‘Precision Medicine in Chronic Inflammation’ (EXC2167). D.E. was supported by the German Federal Ministry of Education and Research (BMBF) within the framework of the Computational Life Sciences funding concept (CompLS grant 031L0165). D.E., K.B. and S.B. acknowledge the Novo Nordisk Foundation (NNF14CC0001 and NNF17OC0027594). T.L.L., A.T. and O.Ö. were funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), project numbers 279645989; 433116033; 437857095. M.W. and H.E. are supported by the German Research Foundation (DFG) through the Research Training Group 1743, ‘Genes, Environment and Inflammation’. L.V. received funding from: Ricerca Finalizzata Ministero della Salute (RF-2016-02364358), Italian Ministry of Health ‘CV PREVITAL’—strategie di prevenzione primaria cardiovascolare primaria nella popolazione italiana; The European Union (EU) Programme Horizon 2020 (under grant agreement No. 777377) for the project LITMUS- and for the project ‘REVEAL’; Fondazione IRCCS Ca’ Granda ‘Ricerca corrente’, Fondazione Sviluppo Ca’ Granda ‘Liver-BIBLE’ (PR-0391), Fondazione IRCCS Ca’ Granda ‘5permille’ ‘COVID-19 Biobank’ (RC100017A). A.B. was supported by a grant from Fondazione Cariplo to Fondazione Tettamanti: ‘Bio-banking of Covid-19 patient samples to support national and international research (Covid-Bank). This research was partly funded by an MIUR grant to the Department of Medical Sciences, under the program ‘Dipartimenti di Eccellenza 2018–2022’. This study makes use of data generated by the GCAT-Genomes for Life. Cohort study of the Genomes of Catalonia, FundaciĂł IGTP (The Institute for Health Science Research Germans Trias i Pujol) IGTP is part of the CERCA Program/Generalitat de Catalunya. GCAT is supported by AcciĂłn de DinamizaciĂłn del ISCIII-MINECO and the Ministry of Health of the Generalitat of Catalunya (ADE 10/00026); the AgĂšncia de GestiĂł d’Ajuts Universitaris i de Recerca (AGAUR) (2017-SGR 529). M.M. received research funding from grant PI19/00335 AcciĂłn EstratĂ©gica en Salud, integrated in the Spanish National RDI Plan and financed by ISCIII-SubdirecciĂłn General de EvaluaciĂłn and the Fondo Europeo de Desarrollo Regional (European Regional Development Fund (FEDER)-Una manera de hacer Europa’). B.C. is supported by national grants PI18/01512. X.F. is supported by the VEIS project (001-P-001647) (co-funded by the European Regional Development Fund (ERDF), ‘A way to build Europe’). Additional data included in this study were obtained in part by the COVICAT Study Group (Cohort Covid de Catalunya) supported by IsGlobal and IGTP, European Institute of Innovation & Technology (EIT), a body of the European Union, COVID-19 Rapid Response activity 73A and SR20-01024 La Caixa Foundation. A.J. and S.M. were supported by the Spanish Ministry of Economy and Competitiveness (grant numbers: PSE-010000-2006-6 and IPT-010000-2010-36). A.J. was also supported by national grant PI17/00019 from the AcciĂłn EstratĂ©gica en Salud (ISCIII) and the European Regional Development Fund (FEDER). The Basque Biobank, a hospital-related platform that also involves all Osakidetza health centres, the Basque government’s Department of Health and Onkologikoa, is operated by the Basque Foundation for Health Innovation and Research-BIOEF. M.C. received Grants BFU2016-77244-R and PID2019-107836RB-I00 funded by the Agencia Estatal de InvestigaciĂłn (AEI, Spain) and the European Regional Development Fund (FEDER, EU). M.R.G., J.A.H., R.G.D. and D.M.M. are supported by the ‘Spanish Ministry of Economy, Innovation and Competition, the Instituto de Salud Carlos III’ (PI19/01404, PI16/01842, PI19/00589, PI17/00535 and GLD19/00100) and by the Andalussian government (Proyectos EstratĂ©gicos-Fondos Feder PE-0451-2018, COVID-Premed, COVID GWAs). The position held by Itziar de Rojas Salarich is funded by grant FI20/00215, PFIS Contratos Predoctorales de FormaciĂłn en InvestigaciĂłn en Salud. Enrique CalderĂłn’s team is supported by CIBER of Epidemiology and Public Health (CIBERESP), ‘Instituto de Salud Carlos III’. J.C.H. reports grants from Research Council of Norway grant no 312780 during the conduct of the study. E.S. reports grants from Research Council of Norway grant no. 312769. The BioMaterialBank Nord is supported by the German Center for Lung Research (DZL), Airway Research Center North (ARCN). The BioMaterialBank Nord is member of popgen 2.0 network (P2N). P.K. Bergisch Gladbach, Germany and the Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany. He is supported by the German Federal Ministry of Education and Research (BMBF). O.A.C. is supported by the German Federal Ministry of Research and Education and is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—CECAD, EXC 2030–390661388. The COMRI cohort is funded by Technical University of Munich, Munich, Germany. This work was supported by grants of the Rolf M. Schwiete Stiftung, the Saarland University, BMBF and The States of Saarland and Lower Saxony. K.U.L. is supported by the German Research Foundation (DFG, LU-1944/3-1). Genotyping for the BoSCO study is funded by the Institute of Human Genetics, University Hospital Bonn. F.H. was supported by the Bavarian State Ministry for Science and Arts. Part of the genotyping was supported by a grant to A.R. from the German Federal Ministry of Education and Research (BMBF, grant: 01ED1619A, European Alzheimer DNA BioBank, EADB) within the context of the EU Joint Programme—Neurodegenerative Disease Research (JPND). Additional funding was derived from the German Research Foundation (DFG) grant: RA 1971/6-1 to A.R. P.R. is supported by the DFG (CCGA Sequencing Centre and DFG ExC2167 PMI and by SH state funds for COVID19 research). F.T. is supported by the Clinician Scientist Program of the Deutsche Forschungsgemeinschaft Cluster of Excellence ‘Precision Medicine in Chronic Inflammation’ (EXC2167). C.L. and J.H. are supported by the German Center for Infection Research (DZIF). T.B., M.M.B., O.W. und A.H. are supported by the Stiftung UniversitĂ€tsmedizin Essen. M.A.-H. was supported by Juan de la Cierva Incorporacion program, grant IJC2018-035131-I funded by MCIN/AEI/10.13039/501100011033. E.C.S. is supported by the Deutsche Forschungsgemeinschaft (DFG; SCHU 2419/2-1).Peer reviewe

    Detailed stratified GWAS analysis for severe COVID-19 in four European populations

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    Given the highly variable clinical phenotype of Coronavirus disease 2019 (COVID-19), a deeper analysis of the host genetic contribution to severe COVID-19 is important to improve our understanding of underlying disease mechanisms. Here, we describe an extended GWAS meta-analysis of a well-characterized cohort of 3,260 COVID-19 patients with respiratory failure and 12,483 population controls from Italy, Spain, Norway and Germany/Austria, including stratified analyses based on age, sex and disease severity, as well as targeted analyses of chromosome Y haplotypes, the human leukocyte antigen (HLA) region and the SARS-CoV-2 peptidome. By inversion imputation, we traced a reported association at 17q21.31 to a highly pleiotropic ∌0.9-Mb inversion polymorphism and characterized the potential effects of the inversion in detail. Our data, together with the 5th release of summary statistics from the COVID-19 Host Genetics Initiative, also identified a new locus at 19q13.33, including NAPSA, a gene which is expressed primarily in alveolar cells responsible for gas exchange in the lung.Andre Franke and David Ellinghaus were supported by a grant from the German Federal Ministry of Education and Research (01KI20197), Andre Franke, David Ellinghaus and Frauke Degenhardt were supported by the Deutsche Forschungsgemeinschaft Cluster of Excellence “Precision Medicine in Chronic Inflammation” (EXC2167). David Ellinghaus was supported by the German Federal Ministry of Education and Research (BMBF) within the framework of the Computational Life Sciences funding concept (CompLS grant 031L0165). David Ellinghaus, Karina Banasik and SĂžren Brunak acknowledge the Novo Nordisk Foundation (grant NNF14CC0001 and NNF17OC0027594). Tobias L. Lenz, Ana Teles and Onur Özer were funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), project numbers 279645989; 433116033; 437857095. Mareike Wendorff and Hesham ElAbd are supported by the German Research Foundation (DFG) through the Research Training Group 1743, "Genes, Environment and Inflammation". This project was supported by a Covid-19 grant from the German Federal Ministry of Education and Research (BMBF; ID: 01KI20197). Luca Valenti received funding from: Ricerca Finalizzata Ministero della Salute RF2016-02364358, Italian Ministry of Health ""CV PREVITAL – strategie di prevenzione primaria cardiovascolare primaria nella popolazione italiana; The European Union (EU) Programme Horizon 2020 (under grant agreement No. 777377) for the project LITMUS- and for the project ""REVEAL""; Fondazione IRCCS Ca' Granda ""Ricerca corrente"", Fondazione Sviluppo Ca' Granda ""Liver-BIBLE"" (PR-0391), Fondazione IRCCS Ca' Granda ""5permille"" ""COVID-19 Biobank"" (RC100017A). Andrea Biondi was supported by the grant from Fondazione Cariplo to Fondazione Tettamanti: "Biobanking of Covid-19 patient samples to support national and international research (Covid-Bank). This research was partly funded by a MIUR grant to the Department of Medical Sciences, under the program "Dipartimenti di Eccellenza 2018–2022". This study makes use of data generated by the GCAT-Genomes for Life. Cohort study of the Genomes of Catalonia, FundaciĂł IGTP. IGTP is part of the CERCA Program / Generalitat de Catalunya. GCAT is supported by AcciĂłn de DinamizaciĂłn del ISCIIIMINECO and the Ministry of Health of the Generalitat of Catalunya (ADE 10/00026); the AgĂšncia de GestiĂł d’Ajuts Universitaris i de Recerca (AGAUR) (2017-SGR 529). Marta MarquiĂ© received research funding from ant PI19/00335 AcciĂłn EstratĂ©gica en Salud, integrated in the Spanish National RDI Plan and financed by ISCIIISubdirecciĂłn General de EvaluaciĂłn and the Fondo Europeo de Desarrollo Regional (FEDER-Una manera de hacer Europa").Beatriz Cortes is supported by national grants PI18/01512. Xavier Farre is supported by VEIS project (001-P-001647) (cofunded by European Regional Development Fund (ERDF), “A way to build Europe”). Additional data included in this study was obtained in part by the COVICAT Study Group (Cohort Covid de Catalunya) supported by IsGlobal and IGTP, EIT COVID-19 Rapid Response activity 73A and SR20-01024 La Caixa Foundation. Antonio JuliĂ  and Sara Marsal were supported by the Spanish Ministry of Economy and Competitiveness (grant numbers: PSE-010000-2006-6 and IPT-010000-2010-36). Antonio JuliĂ  was also supported the by national grant PI17/00019 from the AcciĂłn EstratĂ©gica en Salud (ISCIII) and the FEDER. The Basque Biobank is a hospitalrelated platform that also involves all Osakidetza health centres, the Basque government's Department of Health and Onkologikoa, is operated by the Basque Foundation for Health Innovation and Research-BIOEF. Mario CĂĄceres received Grants BFU2016-77244-R and PID2019-107836RB-I00 funded by the Agencia Estatal de InvestigaciĂłn (AEI, Spain) and the European Regional Development Fund (FEDER, EU). Manuel Romero GĂłmez, Javier Ampuero Herrojo, RocĂ­o Gallego DurĂĄn and Douglas Maya Miles are supported by the “Spanish Ministry of Economy, Innovation and Competition, the Instituto de Salud Carlos III” (PI19/01404, PI16/01842, PI19/00589, PI17/00535 and GLD19/00100), and by the Andalussian government (Proyectos EstratĂ©gicos-Fondos Feder PE-0451-2018, COVID-Premed, COVID GWAs). The position held by Itziar de Rojas Salarich is funded by grant FI20/00215, PFIS Contratos Predoctorales de FormaciĂłn en InvestigaciĂłn en Salud. Enrique CalderĂłn's team is supported by CIBER of Epidemiology and Public Health (CIBERESP), "Instituto de Salud Carlos III". Jan Cato Holter reports grants from Research Council of Norway grant no 312780 during the conduct of the study. Dr. SolligĂ„rd: reports grants from Research Council of Norway grant no 312769. The BioMaterialBank Nord is supported by the German Center for Lung Research (DZL), Airway Research Center North (ARCN). The BioMaterialBank Nord is member of popgen 2.0 network (P2N). Philipp Koehler has received non-financial scientific grants from Miltenyi Biotec GmbH, Bergisch Gladbach, Germany, and the Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany. He is supported by the German Federal Ministry of Education and Research (BMBF).Oliver A. Cornely is supported by the German Federal Ministry of Research and Education and is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy – CECAD, EXC 2030 – 390661388. The COMRI cohort is funded by Technical University of Munich, Munich, Germany. Genotyping was performed by the Genotyping laboratory of Institute for Molecular Medicine Finland FIMM Technology Centre, University of Helsinki. This work was supported by grants of the Rolf M. Schwiete Stiftung, the Saarland University, BMBF and The States of Saarland and Lower Saxony. Kerstin U. Ludwig is supported by the German Research Foundation (DFG, LU-1944/3-1). Genotyping for the BoSCO study is funded by the Institute of Human Genetics, University Hospital Bonn. Frank Hanses was supported by the Bavarian State Ministry for Science and Arts. Part of the genotyping was supported by a grant to Alfredo Ramirez from the German Federal Ministry of Education and Research (BMBF, grant: 01ED1619A, European Alzheimer DNA BioBank, EADB) within the context of the EU Joint Programme – Neurodegenerative Disease Research (JPND). Additional funding was derived from the German Research Foundation (DFG) grant: RA 1971/6-1 to Alfredo Ramirez. Philip Rosenstiel is supported by the DFG (CCGA Sequencing Centre and DFG ExC2167 PMI and by SH state funds for COVID19 research). Florian Tran is supported by the Clinician Scientist Program of the Deutsche Forschungsgemeinschaft Cluster of Excellence “Precision Medicine in Chronic Inflammation” (EXC2167). Christoph Lange and Jan Heyckendorf are supported by the German Center for Infection Research (DZIF). Thorsen Brenner, Marc M Berger, Oliver Witzke und Anke Hinney are supported by the Stiftung UniversitĂ€tsmedizin Essen. Marialbert Acosta-Herrera was supported by Juan de la Cierva Incorporacion program, grant IJC2018-035131-I funded by MCIN/AEI/10.13039/501100011033. Eva C Schulte is supported by the Deutsche Forschungsgemeinschaft (DFG; SCHU 2419/2-1).N

    A first update on mapping the human genetic architecture of COVID-19

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    Omecamtiv mecarbil in chronic heart failure with reduced ejection fraction, GALACTIC‐HF: baseline characteristics and comparison with contemporary clinical trials

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    Aims: The safety and efficacy of the novel selective cardiac myosin activator, omecamtiv mecarbil, in patients with heart failure with reduced ejection fraction (HFrEF) is tested in the Global Approach to Lowering Adverse Cardiac outcomes Through Improving Contractility in Heart Failure (GALACTIC‐HF) trial. Here we describe the baseline characteristics of participants in GALACTIC‐HF and how these compare with other contemporary trials. Methods and Results: Adults with established HFrEF, New York Heart Association functional class (NYHA) ≄ II, EF ≀35%, elevated natriuretic peptides and either current hospitalization for HF or history of hospitalization/ emergency department visit for HF within a year were randomized to either placebo or omecamtiv mecarbil (pharmacokinetic‐guided dosing: 25, 37.5 or 50 mg bid). 8256 patients [male (79%), non‐white (22%), mean age 65 years] were enrolled with a mean EF 27%, ischemic etiology in 54%, NYHA II 53% and III/IV 47%, and median NT‐proBNP 1971 pg/mL. HF therapies at baseline were among the most effectively employed in contemporary HF trials. GALACTIC‐HF randomized patients representative of recent HF registries and trials with substantial numbers of patients also having characteristics understudied in previous trials including more from North America (n = 1386), enrolled as inpatients (n = 2084), systolic blood pressure < 100 mmHg (n = 1127), estimated glomerular filtration rate < 30 mL/min/1.73 m2 (n = 528), and treated with sacubitril‐valsartan at baseline (n = 1594). Conclusions: GALACTIC‐HF enrolled a well‐treated, high‐risk population from both inpatient and outpatient settings, which will provide a definitive evaluation of the efficacy and safety of this novel therapy, as well as informing its potential future implementation
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