Institution
University of São Paulo
Education•São Paulo, Brazil•
About: University of São Paulo is a education organization based out in São Paulo, Brazil. It is known for research contribution in the topics: Population & Health care. The organization has 136513 authors who have published 272320 publications receiving 5127869 citations. The organization is also known as: USP & Universidade de São Paulo.
Topics: Population, Health care, Transplantation, Immune system, Poison control
Papers published on a yearly basis
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TL;DR: In this paper, the particle multiplicity, its dependence on transverse momentum and pseudorapidity and the relationship between the mean transversal momentum and the charged-particle multiplicity are measured.
Abstract: Measurements are presented from proton-proton collisions at centre-of-mass energies of root s = 0.9, 2.36 and 7 TeV recorded with the ATLAS detector at the LHC. Events were collected using a single-arm minimum-bias trigger. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity and the relationship between the mean transverse momentum and charged-particle multiplicity are measured. Measurements in different regions of phase space are shown, providing diffraction-reduced measurements as well as more inclusive ones. The observed distributions are corrected to well-defined phase-space regions, using model-independent corrections. The results are compared to each other and to various Monte Carlo (MC) models, including a new AMBT1 pythia6 tune. In all the kinematic regions considered, the particle multiplicities are higher than predicted by the MC models. The central charged-particle multiplicity per event and unit of pseudorapidity, for tracks with p(T) > 100 MeV, is measured to be 3.483 +/- 0.009 (stat) +/- 0.106 (syst) at root s = 0.9 TeV and 5.630 +/- 0.003 (stat) +/- 0.169 (syst) at root s = 7 TeV.
435 citations
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TL;DR: A review of the current state of knowledge concerning the central stars as nonradially pulsating objects and non-magnetic stars, as far as it concerns large-scale, i.e., mostly dipolar, global fields, can be found in this paper.
Abstract: In the past decade, a consensus has emerged regarding the nature of classical Be stars: They are very rapidly rotating main sequence B stars, which, through a still unknown, but increasingly constrained process, form an outwardly diffusing gaseous, dust-free Keplerian disk. In this work, first the definition of Be stars is contrasted to similar classes, and common observables obtained for Be stars are introduced and the respective formation mechanisms explained. We then review the current state of knowledge concerning the central stars as non-radially pulsating objects and non-magnetic stars, as far as it concerns large-scale, i.e., mostly dipolar, global fields. Localized, weak magnetic fields remain possible, but are as of yet unproven. The Be-phenomenon, linked with one or more mass-ejection processes, acts on top of a rotation rate of about 75 % of critical or above. The properties of the process can be well constrained, leaving only few options, most importantly, but not exclusively, non-radial pulsation and small-scale magnetic fields. Of these, it is well possible that all are realized: In different stars, different processes may be acting. Once the material has been lifted into Keplerian orbit, memory of the details of the ejection process is lost, and the material is governed by viscosity. The disks are fairly well understood in the theoretical framework of the viscous decretion disk model. This is not only true for the disk structure, but as well for its variability, both cyclic and secular. Be binaries are reviewed under the aspect of the various types of interactions a companion can have with the circumstellar disk. Finally, extragalactic Be stars, at lower metallicities, seem more common and more rapidly rotating.
435 citations
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National Institute for Health Research1, University of London2, University of Auckland3, Anglia Ruskin University4, University of Cambridge5, Sun Yat-sen University6, Queen's University Belfast7, The Fred Hollows Foundation8, Mbarara University of Science and Technology9, Ministry of Health and Family Welfare10, University of Geneva11, St Thomas' Hospital12, Leeds Teaching Hospitals NHS Trust13, Southwest University of Visual Arts14, Orbis International15, International Agency for the Prevention of Blindness16, University of Cape Town17, University Hospitals Birmingham NHS Foundation Trust18, University of Michigan19, Emory University20, Johns Hopkins University21, Massachusetts Eye and Ear Infirmary22, University of São Paulo23, University of Nairobi24, Seva Foundation25, Tilganga Institute of Ophthalmology26, Heidelberg University27, The George Institute for Global Health28, University of New South Wales29, L V Prasad Eye Institute30, College of Health Sciences, Bahrain31, Muhimbili University of Health and Allied Sciences32, International Institute of Minnesota33, University of the West Indies34, University of Melbourne35, Kenya Medical Training College36, Federal University of São Paulo37, Capital Medical University38, National University of Singapore39, Singapore National Eye Center40, Pan American Health Organization41, Brien Holden Vision Institute42, University of Calabar43
TL;DR: In this paper, the authors defined eye health as maximised vision, ocular health, and functional ability, thereby contributing to overall health and wellbeing, social inclusion, and quality of life.
435 citations
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TL;DR: Surgical ventricular restoration improves ventricular function and is highly effective therapy in the treatment of ischemic cardiomyopathy with excellent five-year outcome.
434 citations
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TL;DR: In this paper, water-soluble organic compounds (WSOCs) within the samples were characterized using a combination of 1H Nuclear Magnetic Resonance (NMR) spectroscopy for chemical functional group analysis and Gas Chromatography-Mass Spectrometry (GC-MS) for identification and quantification of individual low-molecular-weight compounds.
Abstract: [1] As part of the European contribution to the Large-Scale Atmosphere-Biosphere Experiment in Amazonia (LBA-EUSTACH), aerosols were sampled at representative pasture and primary rainforest sites in Rondonia, Brazil, during the 1999 “burning season” and dry-to-wet season transition (September-October). Water-soluble organic compounds (WSOCs) within the samples were characterized using a combination of 1H Nuclear Magnetic Resonance (NMR) spectroscopy for chemical functional group analysis, and Gas Chromatography-Mass Spectrometry (GC-MS) for identification and quantification of individual low-molecular-weight compounds. The 1H NMR analysis indicates that WSOCs are predominantly aliphatic or oxygenated aliphatic compounds (alcohols, carboxylic acids, etc.), with a minor content of aromatic rings carrying carboxylic and phenolic groups. Levoglucosan (1,6-anhydro-β-D-glucose), a well-known cellulose combustion product, was the most abundant individual compound identified by GC-MS (0.04–6.90 μg m−3), accounting for 1–6% of the total carbon (TC) and 2–8% of the water-soluble organic carbon (WSOC). Other anhydrosugars, produced by hemicellulose breakdown, were detected in much smaller amounts, in addition to series of acids, hydroxyacids, oxoacids, and polyalcohols (altogether 2–5% of TC, 3–6% of WSOC). Most correlated well with organic carbon, black carbon, and potassium, indicating biomass burning to be the major source. A series of sugar alcohols (mannitol, arabitol, erythritol) and sugars (glucose, fructose, mannose, galactose, sucrose, trehalose) were identified as part of the natural background aerosol and are probably derived from airborne microbes and other biogenic material. The bulk of the WSOCs (86–91% WSOC) eluded analysis by GC-MS and may be predominantly high-molecular weight in nature.
433 citations
Authors
Showing all 138091 results
Name | H-index | Papers | Citations |
---|---|---|---|
George M. Whitesides | 240 | 1739 | 269833 |
Peter Libby | 211 | 932 | 182724 |
Robert C. Nichol | 187 | 851 | 162994 |
Paul M. Thompson | 183 | 2271 | 146736 |
Terrie E. Moffitt | 182 | 594 | 150609 |
Douglas R. Green | 182 | 661 | 145944 |
Richard B. Lipton | 176 | 2110 | 140776 |
Robin M. Murray | 171 | 1539 | 116362 |
George P. Chrousos | 169 | 1612 | 120752 |
David A. Bennett | 167 | 1142 | 109844 |
Barry M. Popkin | 157 | 751 | 90453 |
David H. Adams | 155 | 1613 | 117783 |
Joao Seixas | 153 | 1538 | 115070 |
Matthias Egger | 152 | 901 | 184176 |
Ichiro Kawachi | 149 | 1216 | 90282 |