Search results for "Scientific"
showing 10 items of 1193 documents
Blood group related antigens in ocular cicatricial pemphigoid
2004
Aim: To study the MUC5AC and the blood group related antigen expression in ocular cicatricial pemphigoid (OCP) according to the distribution of Lewis and secretor phenotypes in OCP patients compared to normal subjects. Methods: Immunostaining was performed on conjunctival biopsy specimens from 22 consecutive patients suffering from OCP, using monoclonal antibodies (Mabs) directed against the peptidic core MUC5AC mucin (anti-M1/MUC5AC Mabs) and against the saccharide moieties (anti-blood group related antigens). These latter included anti-Lea, anti-Leb, anti-sialyl Lea, and H type 2 Mabs, which immunoreact with Lewis positive and non-secretor (Lea), Lewis positive and secretor (Leb), Lewis p…
InCREDulity in Artificial Societies
2021
This paper describes an artificial society in which the simulated agents behave and interact based on a computational architecture informed by insights from one of the leading social psychological theories in the scientific study of secularization and religion: “credibility-enhancing displays” (or CREDs) theory. After introducing the key elements of the theory and outlining the computational architecture of our CRED model, we present some of our initial simulation results. These efforts are intended to advance the quest within social simulation for more authentic artificial societies and more plausible human-like agents with complex interactive and interpretative capacities.
Modeling Radicalization and Violent Extremism
2020
Given public anxiety about radicalization and violent extremism, it is not surprising that these topics have grabbed the attention of so many scholars in recent years. However, some have expressed concern over the fact that only a few studies in this relatively new field contain empirical data or systematic data analysis or develop causal models of the mechanisms generating these phenomena. We believe that computational modeling and simulation techniques can make a significant contribution to this scientific literature and eventually provide new tools for improving policy analysis. Here we briefly describe (1) an integrative theory of violent extremism proposed by Kruglanski and colleagues …
The role of the Nature of Science in citizens' education
2007
O presente trabalho tem como propósito dar uma nova contribuição para o debate que se vem desenvolvendo, já faz algum tempo, em volta do papel da natureza da ciência na educação científica e, em particular, na formação de uma cidadania para a participação na tomada de decisões. This paper aims to contribute to the debate on the role of the nature of science and technology in science education, paying particular attention to preparing citizens to participate in decision making.
ChemInform Abstract: Electrochemical Allylic Oxidation of Olefins: Sustainable and Safe
2016
The power you're supplying: With the application of an optimized electrochemical approach, the allylic oxidation of olefins, which is an important C-H activation process that provides access to enones, becomes a sustainable, versatile, and potent key reaction for organic synthesis.
Quantitative Vibrational Spectrometry in the 21st Century: A Scientometric Evaluation
2005
Abstract The state of the art of research on vibrational spectrometry–based quantitative methodologies was evaluated from the literature compiled in Analytical Abstracts from 1980. Medium and near infrared, Raman spectrometry, and photoacoustic methods of analysis were considered. The evolution of the number of published papers, the distribution of the literature as a function of the different application fields in which the vibrational methods were employed, and a study of the impact on this area of chemometric and automation studies clearly shows that, from the 1990s until now, the importance of vibrational spectrometry in application analysis has grown to reach maturity. This field provi…
Análisis de las métricas alternativas de Archivos de Bronconeumología durante el periodo 2014-2018
2020
Introduction: Alternative metrics or altmetrics are non-traditional measurements of scientific production that reflect a publication's influence in social networks and similar channels of dissemination. The aim of this study was to analyze the media impact of ARCHIVOS DE BRONCONEUMOLOGÍA according to 2 altmetric aggregators and website visits. Methods: This was an observational study of the original articles and review and consensus articles published in ARCHIVOS DE BRONCONEUMOLOGÍA during the period 2014-2018. Data from the PlumX Metrics and Altmetric aggregators and visits to the ARCHIVOS DE BRONCONEUMOLOGÍA website were analyzed. Five comparisons were made: by specialty area, by funding …
Reduction of Dinitrogen to Ammonia in Irradiated Heterogeneous Systems
1988
The recent developments of the research in the field of dinitrogen reduction to ammonia at mild conditions of pressure and temperature are reported. After a brief historical recapitulation of the traditional thermal process, the new routes for NH3 synthesis (biological photosynthesis, direct electrochemical reduction, and photocatalytic reduction) are presented and critically discussed. A particular attention is devoted to heterogeneous photocatalytic reduction performed by irradiating pure, mixed, and doped semiconducting catalysts in gas-solid and liquid-solid systems. The fixation of dinitrogen in aqueous solutions containing complexes and photoactive particulate systems is also reported…
Contribución de Anales de Pediatría a la visibilidad internacional de la investigación pediátrica española en la Web of Science (2010-2014)
2016
Resumen: Objetivo: Describir el papel de Anales de Pediatría en la difusión de la investigación pediátrica española e identificar las revistas con las que compite internacionalmente. Material y método: Se identificó la producción pediátrica española y la de Anales de Pediatría recogida en la categoría Pediatrics del Science Citation Index de la WoS (2010-2014) analizando su volumen y tipo documental. De los artículos originales y revisiones (artículos) se estudiaron el año, la citación y el tipo de revista de publicación (revistas generales y especializadas). De las generales, se analizó su productividad de acuerdo con su idioma, posición que ocupa en los JCR de 2012 y accesibilidad a sus c…
Fuzziness, Philosophy, and Medicine
2013
In his Handbook of Analytic Philosophy of Medicine, a book that in our view is qualified to be the starting point of a new discourse in the fields of Theoretical Medicine and Philosophy of Medicine, Kazem Sadegh-Zadeh uses two scientific theories that are studied and regarded in many specific sectors of hard and human sciences but not globally well-known in Philosophy of Medicine: Fuzzy Set Theory and Structuralism. This opening contribution briefly discusses those approaches, and introduces the musing, ideas, counterpoints and contributions from many other authors, among them philosophers, logicians, mathematicians and researchers from different and competing disciplines, that constitute t…