Institution
University of Barcelona
Education•Barcelona, Spain•
About: University of Barcelona is a education organization based out in Barcelona, Spain. It is known for research contribution in the topics: Population & Transplantation. The organization has 46197 authors who have published 108576 publications receiving 3723377 citations. The organization is also known as: Universitat de Barcelona & UB.
Topics: Population, Transplantation, Medicine, Context (language use), Catalysis
Papers published on a yearly basis
Papers
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TL;DR: Survey data from across 19 countries reveal heterogeneity in attitudes toward acceptance of a COVID-19 vaccine and suggest that trust in government is associated with vaccine confidence.
Abstract: Several coronavirus disease 2019 (COVID-19) vaccines are currently in human trials. In June 2020, we surveyed 13,426 people in 19 countries to determine potential acceptance rates and factors influencing acceptance of a COVID-19 vaccine. Of these, 71.5% of participants reported that they would be very or somewhat likely to take a COVID-19 vaccine, and 48.1% reported that they would accept their employer's recommendation to do so. Differences in acceptance rates ranged from almost 90% (in China) to less than 55% (in Russia). Respondents reporting higher levels of trust in information from government sources were more likely to accept a vaccine and take their employer's advice to do so.
1,923 citations
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TL;DR: An improvement to the BCR sequential extraction procedure through intercomparison exercises is offered, which will allow the obtaining of CRMs to validate analytical data in the analysis of soils and sediments, and it will also facilitate comparability ofData in the European Union.
Abstract: The Standards, Measurements and Testing Programme (formerly BCR) of the European Commission proposed a three-step sequential extraction procedure for sediment analysis, following extensive expert consultations and two interlaboratory studies. This scheme was recently used to certify the extractable trace element contents of a sediment reference material (CRM 601). Although this procedure offers a means to ensure the comparability of data in this field, some difficulties concerning the interlaboratory reproducibility still remain, and a new project is currently being conducted to determine the causes of poor reproducibility in the extraction scheme. The final objective of the project is the certification of new sediment and soil reference materials for their extractable contents of Cd, Cr, Cu, Ni, Pb and Zn. This paper presents the results of a small-scale interlaboratory study, which aimed to test a revised version of the extraction schemes by comparing the original and the modified protocols using the CRM 601 sample. This work offers an improvement to the BCR sequential extraction procedure through intercomparison exercises. This improved procedure will allow the obtaining of CRMs to validate analytical data in the analysis of soils and sediments, and it will also facilitate comparability of data in the European Union.
1,922 citations
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University of Paris1, French Institute of Health and Medical Research2, Rockefeller University3, National Institutes of Health4, University of Tartu5, Lyon College6, Tartu University Hospital7, Utrecht University8, Vita-Salute San Raffaele University9, Yale University10, Pasteur Institute11, Collège de France12, University of Amsterdam13, McGill University Health Centre14, University of New South Wales15, Garvan Institute of Medical Research16, Ghent University Hospital17, University of Barcelona18, University of Vic19, Catalan Institution for Research and Advanced Studies20, Karolinska University Hospital21, Science for Life Laboratory22, Howard Hughes Medical Institute23, Aarhus University Hospital24, Aarhus University25, University of Milano-Bicocca26, University of Lorraine27, University of Bergen28, Karolinska Institutet29, Haukeland University Hospital30, Canadian Real Estate Association31, University of Brescia32, University of Pavia33
TL;DR: A means by which individuals at highest risk of life-threatening COVID-19 can be identified is identified, and the hypothesis that neutralizing auto-Abs against type I IFNs may underlie critical CO VID-19 is tested.
Abstract: Interindividual clinical variability in the course of SARS-CoV-2 infection is immense. We report that at least 101 of 987 patients with life-threatening COVID-19 pneumonia had neutralizing IgG auto-Abs against IFN-ω (13 patients), the 13 types of IFN-α (36), or both (52), at the onset of critical disease; a few also had auto-Abs against the other three type I IFNs. The auto-Abs neutralize the ability of the corresponding type I IFNs to block SARS-CoV-2 infection in vitro. These auto-Abs were not found in 663 individuals with asymptomatic or mild SARS-CoV-2 infection and were present in only 4 of 1,227 healthy individuals. Patients with auto-Abs were aged 25 to 87 years and 95 were men. A B cell auto-immune phenocopy of inborn errors of type I IFN immunity underlies life-threatening COVID-19 pneumonia in at least 2.6% of women and 12.5% of men.
1,913 citations
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TL;DR: A modified version of the Celera assembler is developed to facilitate the identification and comparison of alternate alleles within this individual diploid genome, and a novel haplotype assembly strategy is used, able to span 1.5 Gb of genome sequence in segments >200 kb, providing further precision to the diploids nature of the genome.
Abstract: Presented here is a genome sequence of an individual human. It was produced from ∼32 million random DNA fragments, sequenced by Sanger dideoxy technology and assembled into 4,528 scaffolds, comprising 2,810 million bases (Mb) of contiguous sequence with approximately 7.5-fold coverage for any given region. We developed a modified version of the Celera assembler to facilitate the identification and comparison of alternate alleles within this individual diploid genome. Comparison of this genome and the National Center for Biotechnology Information human reference assembly revealed more than 4.1 million DNA variants, encompassing 12.3 Mb. These variants (of which 1,288,319 were novel) included 3,213,401 single nucleotide polymorphisms (SNPs), 53,823 block substitutions (2–206 bp), 292,102 heterozygous insertion/deletion events (indels)(1–571 bp), 559,473 homozygous indels (1–82,711 bp), 90 inversions, as well as numerous segmental duplications and copy number variation regions. Non-SNP DNA variation accounts for 22% of all events identified in the donor, however they involve 74% of all variant bases. This suggests an important role for non-SNP genetic alterations in defining the diploid genome structure. Moreover, 44% of genes were heterozygous for one or more variants. Using a novel haplotype assembly strategy, we were able to span 1.5 Gb of genome sequence in segments >200 kb, providing further precision to the diploid nature of the genome. These data depict a definitive molecular portrait of a diploid human genome that provides a starting point for future genome comparisons and enables an era of individualized genomic information.
1,843 citations
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Lund University1, European Space Agency2, Dresden University of Technology3, Heidelberg University4, Telespazio5, University of Barcelona6, University of Edinburgh7, University of Cambridge8, University of Paris9, Serco Group10, INAF11, University of Bern12, University of Bordeaux13, University of Turin14, European Space Research and Technology Centre15, University of Padua16, Centre national de la recherche scientifique17, Max Planck Society18, University of Geneva19, Chinese Academy of Sciences20, Las Cumbres Observatory Global Telescope Network21, Liverpool John Moores University22, Altec Lansing23, Leiden University24
TL;DR: In this article, the authors describe the input data, models, and processing used for the astrometric content of Gaia DR2, and the validation of these results performed within the ASTR task.
Abstract: Context. Gaia Data Release 2 (Gaia DR2) contains results for 1693 million sources in the magnitude range 3 to 21 based on observations collected by the European Space Agency Gaia satellite during the first 22 months of its operational phase.Aims. We describe the input data, models, and processing used for the astrometric content of Gaia DR2, and the validation of these resultsperformed within the astrometry task.Methods. Some 320 billion centroid positions from the pre-processed astrometric CCD observations were used to estimate the five astrometric parameters (positions, parallaxes, and proper motions) for 1332 million sources, and approximate positions at the reference epoch J2015.5 for an additional 361 million mostly faint sources. These data were calculated in two steps. First, the satellite attitude and the astrometric calibration parameters of the CCDs were obtained in an astrometric global iterative solution for 16 million selected sources, using about 1% of the input data. This primary solution was tied to the extragalactic International Celestial Reference System (ICRS) by means of quasars. The resulting attitude and calibration were then used to calculate the astrometric parameters of all the sources. Special validation solutions were used to characterise the random and systematic errors in parallax and proper motion.Results. For the sources with five-parameter astrometric solutions, the median uncertainty in parallax and position at the reference epoch J2015.5 is about 0.04 mas for bright (G = 17 mag, and 0.7 masat G = 20 mag. In the proper motion components the corresponding uncertainties are 0.05, 0.2, and 1.2 mas yr−1 , respectively.The optical reference frame defined by Gaia DR2 is aligned with ICRS and is non-rotating with respect to the quasars to within 0.15 mas yr−1 . From the quasars and validation solutions we estimate that systematics in the parallaxes depending on position, magnitude, and colour are generally below 0.1 mas, but the parallaxes are on the whole too small by about 0.03 mas. Significant spatial correlations of up to 0.04 mas in parallax and 0.07 mas yr−1 in proper motion are seen on small ( DR2 astrometry are given in the appendices.
1,836 citations
Authors
Showing all 46622 results
Name | H-index | Papers | Citations |
---|---|---|---|
Joan Massagué | 189 | 408 | 149951 |
Michael Snyder | 169 | 840 | 130225 |
Michael R. Stratton | 161 | 443 | 142586 |
Johan Auwerx | 158 | 653 | 95779 |
Bart Staels | 152 | 824 | 86638 |
David D'Enterria | 150 | 1592 | 116210 |
Thomas E. Starzl | 150 | 1625 | 91704 |
Manel Esteller | 146 | 713 | 96429 |
Peter B. Jones | 145 | 1857 | 94641 |
Carlos Cordon-Cardo | 144 | 589 | 84862 |
Kjell Fuxe | 142 | 1479 | 89846 |
Kenneth M. Yamada | 139 | 446 | 72136 |
John G.F. Cleland | 137 | 1172 | 110227 |
António Amorim | 136 | 1477 | 96519 |
Elias Campo | 135 | 761 | 85160 |