System Theory
Mostrando 1-12 de 1527 artigos, teses e dissertações.
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1. The Stabilization of Asphaltenes in Different Crude Fractions: A Molecular Approach
The conditions of petroleum extraction may allow asphaltenes to precipitate, causing deposition that clogs wells, pipes and equipment, consequently reducing productivity. In this work, the solubility parameters and precipitation onset of polar fractions of heavy crudes from Brazilian fields were estimated using a simplified system of n-heptane/toluene mixtur
J. Braz. Chem. Soc.. Publicado em: 2021-04
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2. Right to health, judicial review and constitutional state of emergency: a critical perspective of the pandemic
Abstract The article seeks to explore the legal impact of the COVID-19 pandemic on our constitutional system. Starting from the differentiation between a state of exception and a state of constitutional emergency, the issue of facing the pandemic must have an answer within the framework established by the 1988 Constitution. Furthermore, the responses of publ
Rev. Direito Práx.. Publicado em: 2021-04
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3. Dysautonomic Arrhythmogenesis: A Working Hypothesis in Chronic Chagas Cardiomyopathy
Abstract Sudden cardiac arrest (SCA) represents the most dramatic course of chronic Chagas cardiomyopathy (CCC) and is closely related to the presence of ventricular arrhythmias and heart disease. Although several aspects of ventricular arrhythmias in CCC have been elucidated in the last decades, such as the role of impaired cardiac autonomic modulation repo
Int. J. Cardiovasc. Sci.. Publicado em: 2020-12
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4. MOORE’S PARADOX AND THE LOGIC OF BELIEF
Abstract Moore’s Paradox is a test case for any formal theory of belief. In Knowledge and Belief, Hintikka developed a multimodal logic for statements that express sentences containing the epistemic notions of knowledge and belief. His account purports to offer an explanation of the paradox. In this paper I argue that Hintikka’s interpretation of one of
Manuscrito. Publicado em: 2020-06
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5. Pavilhão Mourisco: singular e universal
Abstract Moore’s Paradox is a test case for any formal theory of belief. In Knowledge and Belief, Hintikka developed a multimodal logic for statements that express sentences containing the epistemic notions of knowledge and belief. His account purports to offer an explanation of the paradox. In this paper I argue that Hintikka’s interpretation of one of
Hist. cienc. saude-Manguinhos. Publicado em: 2020-06
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6. Pesquisas em políticas de comunicação em contextos de crise
By way of Density Functional Theory (DFT)-based computational methods with commercially available software, the computational work of which about the molecular properties, the vibrational modes and vibrational frequencies of finasteride were accomplished for the first time. In order to gain a deeper and more thorough understanding of the molecular structure
Intercom, Rev. Bras. Ciênc. Comun.. Publicado em: 2020-05
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7. VIBRATIONAL SPECTROSCOPIC INVESTIGATION AND MOLECULAR STRUCTURE OF A 5α-REDUCTASE INHIBITOR: FINASTERIDE
By way of Density Functional Theory (DFT)-based computational methods with commercially available software, the computational work of which about the molecular properties, the vibrational modes and vibrational frequencies of finasteride were accomplished for the first time. In order to gain a deeper and more thorough understanding of the molecular structure
Quím. Nova. Publicado em: 2020-05
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8. FUZZY SLIDING-MODE TEMPERATURE-CONTROL SYSTEM FOR SOAKING AND GERMINATION OF RICE SEEDS
ABSTRACT The soaking and germination process of rice seeds is the starting point in rice cultivation in cold regions and has a significant effect on grain yield. Efficient techniques for controlling the water temperature in the seed tank are required to enhance germination quality. This paper introduces a fuzzy theory for designing a fuzzy logic-based slidin
Eng. Agríc.. Publicado em: 2020-04
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9. Arantes ACQ. A morte é um dia que vale a pena viver. Alfragide, Portugal: Oficina do livro; 2019.
ABSTRACT The soaking and germination process of rice seeds is the starting point in rice cultivation in cold regions and has a significant effect on grain yield. Efficient techniques for controlling the water temperature in the seed tank are required to enhance germination quality. This paper introduces a fuzzy theory for designing a fuzzy logic-based slidin
Ciênc. saúde coletiva. Publicado em: 2020-04
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10. Screening of the Au:Pt Atomic Ratio Supported in SrCO3: Effects on the Performance of the Solvent-Free Oxidation of Benzyl Alcohol
We have prepared, by a sol-immobilization method, bimetallic catalysts with different Au:Pt atomic ratios supported on commercial SrCO3. The catalytic performance for the oxidation reaction of benzyl alcohol of such materials was compared to the monometallic counterparts, aiming at the obtaining of the best composition of the material. It was found that the
J. Braz. Chem. Soc.. Publicado em: 2020-03
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11. Resenha do Livro: Pensamento Sistêmico: o Novo Paradigma da Ciência
RESUMO O livro Pensamento sistêmico: o novo paradigma da ciência exercerá profundas implicações sobre aqueles que desejam compreender as políticas públicas brasileiras para a educação médica, pois tal paradigma estende seus tentáculos para quase todas as áreas do cotidiano, influenciando nossos modos de ser e estar no mundo. Os dois capítulos da
Rev. bras. educ. med.. Publicado em: 13/01/2020
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12. Terrorismo químico: proposta de modelagem de risco envolvendo ricina em eventos de grande visibilidade no Brasil
RESUMO Grandes eventos estão no centro de estratégias terroristas e vem-se repetindo com frequência no âmbito internacional. Durante os últimos anos, o Brasil é palco de megaeventos esportivos; e este ano sediará a Copa do Mundo Fifa Sub-17. Assume-se que a maior exposição, nesses contextos, aumenta a vulnerabilidade ante as ameaças não convencion
Saúde debate. Publicado em: 13/01/2020