291 research outputs found

    Worldwide topology of the scientific subject profile: a macro approach in the country level

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    [Background] Models for the production of knowledge and systems of innovation and science are key elements for characterizing a country in view of its scientific thematic profile. With regard to scientific output and publication in journals of international visibility, the countries of the world may be classified into three main groups according to their thematic bias.[Methodology/Principal Findings] This paper aims to classify the countries of the world in several broad groups, described in terms of behavioural models that attempt to sum up the characteristics of their systems of knowledge and innovation. We perceive three clusters in our analysis: 1) the biomedical cluster, 2) the basic science & engineering cluster, and 3) the agricultural cluster. The countries are conceptually associated with the clusters via Principal Component Analysis (PCA), and a Multidimensional Scaling (MDS) map with all the countries is presented.[Conclusions/Significance] As we have seen, insofar as scientific output and publication in journals of international visibility is concerned, the countries of the world may be classified into three main groups according to their thematic profile. These groups can be described in terms of behavioral models that attempt to sum up the characteristics of their systems of knowledge and innovation

    Ethical Issues in Engineering Models: An Operations Researcher’s Reflections

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    This article starts with an overview of the author’s personal involvement—as an Operations Research consultant—in several engineering case-studies that may raise ethical questions; e.g., case-studies on nuclear waste, water management, sustainable ecology, military tactics, and animal welfare. All these case studies employ computer simulation models. In general, models are meant to solve practical problems, which may have ethical implications for the various stakeholders; namely, the modelers, the clients, and the public at large. The article further presents an overview of codes of ethics in a variety of disciples. It discusses the role of mathematical models, focusing on the validation of these models’ assumptions. Documentation of these model assumptions needs special attention. Some ethical norms and values may be quantified through the model’s multiple performance measures, which might be optimized. The uncertainty about the validity of the model leads to risk or uncertainty analysis and to a search for robust models. Ethical questions may be pressing in military models, including war games. However, computer games and the related experimental economics may also provide a special tool to study ethical issues. Finally, the article briefly discusses whistleblowing. Its many references to publications and websites enable further study of ethical issues in modeling

    Is technology optimism justified? A discussion towards a comprehensive narrative

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    This paper is based on a discussion developed by one of the thematic working groups at the Biennial International Workshop Advances in Energy Studies (BIWAES) 2017 hold in Naples, Italy. The topic was the role of technology in energy transition and global problems. Owing to the heterogeneity of the participants in the working group, different viewpoints were put together, leading to some shared conclusions. In particular, the role played by the different narratives used in discussing the role of technology in facing global problems was pointed out as the origin of cognitive dissonance. The presented reflections address some conceptual weaknesses in the current debate on technology and global issues, framed in global policies that appear incapable to obtain tangible results. The technology optimism seems, in fact, to be based on the elusive use of both the concepts of technology and sustainability, that are put together for narrative purposes without an explicit conceptual assessment. On one hand, the factual role of technology and its beneficiary are almost never clearly addressed in the debate. On the other hand, the fact that any new technology will serve the cause of sustainability is not questioned whatsoever, without taking into account the social, political and ethical framework in which technology is supposed to be operated

    A Randomized Trial of Convalescent Plasma in Covid-19 Severe Pneumonia

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    BACKGROUND:Convalescent plasma is frequently administered to patients with Covid-19 and hasbeen reported, largely on the basis of observational data, to improve clinical outcomes.Minimal data are available from adequately powered randomized, controlled trials. METHODS:We randomly assigned hospitalized adult patients with severe Covid-19 pneumoniain a 2:1 ratio to receive convalescent plasma or placebo. The primary outcome wasthe patient?s clinical status 30 days after the intervention, as measured on a six-pointordinal scale ranging from total recovery to death. RESULTS:A total of 228 patients were assigned to receive convalescent plasma and 105 toreceive placebo. The median time from the onset of symptoms to enrollment inthe trial was 8 days (interquartile range, 5 to 10), and hypoxemia was the mostfrequent severity criterion for enrollment. The infused convalescent plasma had amedian titer of 1:3200 of total SARS-CoV-2 antibodies (interquartile range, 1:800 to1:3200]. No patients were lost to follow-up. At day 30 day, no significant differencewas noted between the convalescent plasma group and the placebo group in thedistribution of clinical outcomes according to the ordinal scale (odds ratio, 0.83(95% confidence interval [CI], 0.52 to 1.35; P=0.46). Overall mortality was 10.96%in the convalescent plasma group and 11.43% in the placebo group, for a risk difference of −0.46 percentage points (95% CI, −7.8 to 6.8). Total SARS-CoV-2 antibodytiters tended to be higher in the convalescent plasma group at day 2 after the intervention. Adverse events and serious adverse events were similar in the two groups. CONCLUSIONS:no significant differences were observed in clinical status or overall mortality between patients treated with convalescent plasma and those who received placebo.(PlasmAr ClinicalTrials.gov number, NCT04383535.)Fil: Simonovich, Ventura A.. Hospital Italiano. Departamento de Medicina. Servicio de Clinica Medica.; ArgentinaFil: Burgos Pratx, Leandro D.. Hospital Italiano. Departamento de Medicina. Servicio de Clinica Medica.; ArgentinaFil: Scibona, Paula. Hospital Italiano. Departamento de Medicina. Servicio de Clinica Medica.; ArgentinaFil: Beruto, Maria Valeria. No especifĂ­ca;Fil: Vallone, Miguel Gabriel. No especifĂ­ca;Fil: VĂĄzquez, C.. No especifĂ­ca;Fil: Savoy, N.. No especifĂ­ca;Fil: Giunta, Diego Hernan. No especifĂ­ca;Fil: PĂ©rez, L.G.. No especifĂ­ca;Fil: SĂĄnchez, M.L.. No especifĂ­ca;Fil: Gamarnik, Andrea Vanesa. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Oficina de CoordinaciĂłn Administrativa Parque Centenario. Instituto de Investigaciones BioquĂ­micas de Buenos Aires. FundaciĂłn Instituto Leloir. Instituto de Investigaciones BioquĂ­micas de Buenos Aires; ArgentinaFil: Ojeda, D.S.. No especifĂ­ca;Fil: Santoro, D.M.. No especifĂ­ca;Fil: Camino, P. J.. No especifĂ­ca;Fil: Antelo, S.. No especifĂ­ca;Fil: Rainero, K.. No especifĂ­ca;Fil: Vidiella, G. P.. No especifĂ­ca;Fil: Miyazaki, E. A.. No especifĂ­ca;Fil: Cornistein, W.. No especifĂ­ca;Fil: Trabadelo, O. A.. No especifĂ­ca;Fil: Ross, F. M.. No especifĂ­ca;Fil: Spotti, M.. No especifĂ­ca;Fil: Funtowicz, G.. No especifĂ­ca;Fil: Scordo, W. E.. No especifĂ­ca;Fil: Losso, M. H.. No especifĂ­ca;Fil: Ferniot, I.. No especifĂ­ca;Fil: Pardo, P. E.. No especifĂ­ca;Fil: Rodriguez, E.. No especifĂ­ca;Fil: Rucci, P.. No especifĂ­ca;Fil: Pasquali, J.. No especifĂ­ca;Fil: Fuentes, N. A.. No especifĂ­ca;Fil: Esperatti, M.. No especifĂ­ca;Fil: Speroni, G. A.. No especifĂ­ca;Fil: Nannini, Esteban. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - Rosario. Instituto de InmunologĂ­a Clinica y Experimental de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias MĂ©dicas. Instituto de InmunologĂ­a Clinica y Experimental de Rosario; ArgentinaFil: Matteaccio, A.. No especifĂ­ca;Fil: Michelangelo, H.G.. No especifĂ­ca;Fil: Follmann, D.. No especifĂ­ca;Fil: Lane, H. Clifford. No especifĂ­ca;Fil: Belloso, Waldo Horacio. Hospital Italiano. Departamento de Medicina. Servicio de Clinica Medica.; Argentin

    What's new pussycat? A genealogy of animal celebrity

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    Animal celebrity is a human creation informing us about our socially constructed natural world. It is relational, expressive of cultural proclivities, political power plays and the quotidian everyday, as well as serious philosophical reflections on the meaning of being human. This article attempts to outline some key contours in the genealogy of animal celebrity, showing how popular culture, including fairground attractions, public relations, Hollywood movies, documentary films, zoo attractions, commercial sport and mediatised moral panics - particularly those accompanying scientific developments such as cloning - help to order, categorise and license aspects of human understanding and feelings. The nature of [animal] charisma and celebrity are explored with assistance from Jumbo the Elephant, Guy the Gorilla, Paul the clairvoyant octopus, Uggie the film star, NĂ©nette the orang-utan and Dolly the sheep. It argues that the issue of what it is to be human lies beneath the celebritised surface or, as Donna Haraway noted, the issue 'of having to face oneself'

    Tales of future weather

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    Society is vulnerable to extreme weather events and, by extension, to human impacts on future events. As climate changes weather patterns will change. The search is on for more effective methodologies to aid decision-makers both in mitigation to avoid climate change and in adaptation to changes. The traditional approach uses ensembles of climate model simulations, statistical bias correction, downscaling to the spatial and temporal scales relevant to decision-makers, and then translation into quantities of interest. The veracity of this approach cannot be tested, and it faces in-principle challenges. Alternatively, numerical weather prediction models in a hypothetical climate setting can provide tailored narratives for high-resolution simulations of high-impact weather in a future climate. This 'tales of future weather' approach will aid in the interpretation of lower-resolution simulations. Arguably, it potentially provides complementary, more realistic and more physically consistent pictures of what future weather might look like

    Desastres naturais: convivĂȘncia com o risco

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    Estudos sobre riscos de desastres naturais tĂȘm-se aprimorado de uma abordagem fisicalista para uma perspectiva socioambiental. No entanto, planejamento e gestĂŁo ainda seguem o paradigma antropocĂȘntrico da superioridade humana e do poder ilimitado da ciĂȘncia e tecnologia. Evidencia-se uma incapacidade cognitiva, cultural e de ação por parte de especialistas, cientĂ­ficos e tomadores de decisĂŁo (claimmakers) para identificar e atuar sobre as causas sociais da produção de risco. Frente a uma ciĂȘncia cartesiana e positivista na resolução de problemas, baseada na segurança e controle sobre o mundo natural, propĂ”e-se uma ciĂȘncia pĂłs-normal que considera os riscos e incertezas do conhecimento cientĂ­fico e das problemĂĄticas ambientais. Essa nova proposta tambĂ©m incide sobre a participação e o diĂĄlogo entre stakeholders como referĂȘncia para ampliar a qualidade do saber cientĂ­fico e o entendimento da complexidade das questĂ”es ambientais. Este artigo discute a necessidade de se promover um salto epistemolĂłgico sobre a forma de pensar e produzir conhecimentos, bem como implementar a gestĂŁo dos riscos de desastres, tendo como objeto de estudo processos de comunicação e educação para prevenção de desastres.Studies on the risks of natural disasters have improved from a physicalist approach to a social and environmental perspective. However, planning and management still follow the anthropocentric paradigm of human superiority and the unlimited power of science and technology, evincing a cognitive, cultural and action inability on the part of experts, scientists and decision makers (or, rather, claim makers) to identify and act upon the social causes of risk production. In view of the Cartesian and Positivist science used to solve problems, based on security and on control over the natural world, a post-normal science has been proposed that considers the risks and uncertainties of scientific knowledge and environmental issues. This new approach encompasses participation and dialogue among stakeholders as a means to increase the quality of scientific knowledge and acknowledge the complexity of environmental issues. This article discusses the need for an epistemological leap on how we think and produce knowledge, as well as for implementing the management of disaster risk. Its objects of study are communication processes and education for disaster prevention
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