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Mostrando 1-12 de 16172 artigos, teses e dissertações.
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1. Synthesis of delafossite CuCrO2 via solution combustion method and its acid functionalization for biodiesel production
Abstract CuCrO2 was synthesized by solution combustion synthesis (SCS) and applied as a heterogeneous catalyst to produce soybean biodiesel. The combustion reaction was carried out using urea as a fuel, and copper (II) and chromium (III) nitrates as precursors. After the powders’ obtention, these were calcined and functionalized in an acidic medium. The po
Cerâmica. Publicado em: 2023
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2. Is the length of time between endometrial scratching and embryo transfer important for pregnancy success? An observational study
SUMMARY OBJECTIVE: This study sought to evaluate the influence of time (early <90 days and late >90 days) and endometrial injury on pregnancy success. METHODS: This is a retrospective study in which all infertile women who underwent at least one in vitro fertilization cycle at Clinica Gera between 2010 and 2015 were considered for inclusion. We included pa
Revista da Associação Médica Brasileira. Publicado em: 2023
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3. Synthesis and Evaluation of Antibacterial Activity of 1,2,3-Triazole and Ether Derivatives of Paeonol
Multi-drug-resistant bacteria (MDR) are the cause of different infections and diseases that have affected humanity for a long time, and have been an emerging global health problem that has led to increased morbidity and mortality. The growing emergence of MDR bacteria has underlined the need for development and discovery of new antibacterial compounds. In th
Journal of the Brazilian Chemical Society. Publicado em: 2023
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4. OBTENÇÃO DE AMINAS PRIMÁRIAS A PARTIR DA REDUÇÃO DE NITROCOMPOSTOS AROMÁTICOS VIA PROTOCOLOS DE REAÇÕES SUSTENTÁVEIS EM MEIO AQUOSO
Aromatic amines are important intermediates in the industry to produce a wide array of products, and the reduction of aromatic nitro compounds is the main methodology for their preparation. Considering this fact, the objective of this review is to describe the development of sustainable methodologies for the reduction of aromatic nitro compounds for their re
Química Nova. Publicado em: 2022
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5. VIVIR Y MORIR CANTANDO: LA MÚSICA EN EL PENTECOSTALISMO CHILENO
RESUMEN El objetivo de este artículo es describir e interpretar el rol de la música en el pentecostalismo chileno, para destacar su relevancia en el fundacionalismo, su imaginario literario y su importancia y significados en los espacios y tiempos mortuorios, velatorios y postmortuorios. Nuestro abordaje, nos permite poner atención en la percepción de la
Perspectiva Teológica. Publicado em: 2022
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6. NATURAL LANGUAGE AT A CROSSROADS: FORMAL AND PROBABILISTIC APPROACHES IN PHILOSOPHY AND COMPUTER SCIENCE
Abstract Philosophy of language and computer science, despite being very distinct fields, share a great interest in natural language. However, while philosophy has traditionally opted for a formalist approach, computer science has been increasingly favoring probabilistic models. After presenting these two approaches in more detail, we discuss some of their m
Manuscrito. Publicado em: 2022
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7. Transmigrar entre planos de existencia. Desanidando las Mitológicas desde el noroeste de México
RESUMEN Entre sociedades amerindias del noroeste mexicano, la muerte de una persona produce un equívoco y un vínculo indebido entre el fallecido y su colectivo de origen; el equívoco debe solucionarse y el vínculo disolverse. Morir implica el inicio de un "Gran viaje" por parte la persona fallecida. Sus parientes y amigos deben trabajar en conjunto para
Revista de Antropologia. Publicado em: 2022
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8. Le cause degli errori giudiziari e i meccanismi di prevenzione e riparazione delle condanne e imputazioni ingiuste
Abstract The paper aims to investigate the multiple factors, including institutional ones, that give rise to judicial errors originate, considered inescapable elements of any trial system. In addition to analysing the influence that the criminal process through the media can have on the judge’s free conviction, the paper examines a number of emblematic cas
Revista Brasileira de Direito Processual Penal. Publicado em: 2022
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9. Vitamin D metabolism and extraskeletal outcomes: an update
ABSTRACT Vitamin D deficiency is a general health problem affecting individuals at all stages of life and on different continents. The musculoskeletal effects of vitamin D are well known. Its deficiency causes rickets, osteomalacia, and secondary hyperparathyroidism and increases the risk of fractures. Clinical and experimental evidence suggests that vitamin
Archives of Endocrinology and Metabolism. Publicado em: 2022
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10. Study for the incorporation of wood ash in soil-cement brick
Abstract This study aimed to produce soil-cement brick with wood ash incorporation coming from the textile industry. The wood ash was a partial substitute for soil and cement in the manufacture of bricks. 7 formulations were made with different proportions of substitution: 10%, 20%, and 30%. It was noticed that the substitution of cement by wood ash in 10% r
Cerâmica. Publicado em: 2022
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11. Interaction of Lead and Calcium with Biochar Produced from Cassava Waste: Perspectives for Agricultural and Environmental Application
Biochar from slow pyrolysis under controlled conditions is favorable in the transformation of waste into materials that serve as soil conditioners, and/or environmental remediation. Thus, this work aimed to produce and characterize biochar from cassava waste under different temperature conditions and evaluate interactions with Ca2+ and Pb2+ for agricultural
Journal of the Brazilian Chemical Society. Publicado em: 2022
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12. Bone, fat, and muscle interactions in health and disease
Abstract Energy metabolism is a point of integration among the various organs and tissues of the human body, not only in terms of consumption of energy substrates but also because it concentrates a wide interconnected network controlled by endocrine factors. Thus, not only do tissues consume substrates, but they also participate in modulating energy metaboli
Archives of Endocrinology and Metabolism. Publicado em: 2022