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Mostrando 1-12 de 375 artigos, teses e dissertações.
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1. Screening, diagnosis and management of hypothyroidism in pregnancy: Number 10 – October 2022
Key points Pregnancy places a metabolic overload on the maternal thyroid, especially in the first trimester, mainly because of the demand imposed by the conceptus. The fetal thyroid becomes functionally mature only around pregnancy week 20. Until then, the fetus depends on the transfer of maternal thyroid hormones (THs). Thyroid hormones are essential for
Revista Brasileira de Ginecologia e Obstetrícia. Publicado em: 2022
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2. Uma trajetória sinuosa: o Museu Paulista e as apropriações da Fundação de São Paulo, de Oscar Pereira da Silva
RESUMO O artigo analisa a tela Fundação de São Paulo, feita por Oscar Pereira da Silva, em 1907, sob a perspectiva da sua relação com o Museu Paulista, local em que foi exposta desde 1929. Tomando a tela como um enunciado, pretende-se situá-la em seus contextos, evidenciando as suas ressignificações, advindas das múltiplas percepções em relação
An. mus. paul.. Publicado em: 05/12/2019
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3. Application challenges for information and automation technologies in an underground mine in Brazil
Abstract Organizations can establish a value-added sustainable strategy by increasing asset utilization. WLAN infrastructure in underground mines tends to be a consistent platform for reliability in data/information management, and assertive governance practices. It enables remote monitoring, registering and data transfer from a control room, avoiding unnece
REM, Int. Eng. J.. Publicado em: 2017-03
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4. Electrodeposition of Gold Films from a Glycerol Solution on Carbon Paste Electrode and the Effect of Chemical and Electrochemical Parameters of Electrodeposition on the Electrode Performance in Potassium Ferrocyanide Solution
The gold electrodeposition process from a glycerol solution on a carbon paste electrode (CPE) was investigated by voltammetry and the morphologies of the electrodeposits were analyzed by scanning electron microscopy (SEM). Voltammetric study indicated that AuCl4− was reduced to Au0 and the process was mixed controlled (mass transport and electron transfer)
J. Braz. Chem. Soc.. Publicado em: 2017-01
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5. Biotechnology of polyketides: new breath of life for the novel antibiotic genetic pathways discovery through metagenomics
The discovery of secondary metabolites produced by microorganisms (e.g., penicillin in 1928) and the beginning of their industrial application (1940) opened new doors to what has been the main medication source for the treatment of infectious diseases and tumors. In fact, approximately 80 years after the discovery of the first antibiotic compound, and despit
Braz. J. Microbiol.. Publicado em: 2013-12
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6. Thermal Protection System and Trajectory Optimization for Orbital Plane Change Aeroassisted Maneuver
ABSTRACT: The aim of this paper was to identify, for a specific maneuver, the optimal combination between the trajectory and the associated heat shield configuration, namely the locations and thicknesses of the ablative and reusable zones, that maximize the allowable payload mass for a spacecraft. The analysis is conducted by considering the coupling between
J. Aerosp. Technol. Manag.. Publicado em: 2013-03
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7. Otimização na alocação dinâmica de veículos no transporte rodoviário de cargas completas entre terminais
The domain of logistics is concerned with providing customers with the right product in the right place at the right time. In our modern economy, the faster pace and wider scope of logistic operations has led to complex management problems that have drawn the attention of both industry and the academic world Optimizing the number of vehicles for a determined
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/06/2012
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8. O PROGRAMA DE ERRADICAÇÃO DO TRABALHO INFANTIL (PETI) NO MUNICÍPIO DE PONTA GROSSA PR: UMA AVALIAÇÃO SOBRE A POLÍTICA PÚBLICA DE ENFRENTAMENTO AO TRABALHO INFANTIL (2010)
The present study aimed to identify and analyze the potential impacts of the Program for the Eradication of Child Labor (PETI) in the lives of children and adolescents and their contracting families in the municipality of Ponta Grossa, in the year 2010. Such program constitutes itself as strategic public policy of the federal Government to address the proble
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2012
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9. Perfis de espalhamento Raman ressonante em estruturas unidimensionais de carbono: cadeias lineares e nanotubos quiralmente enriquecidos
In resonant Raman scattering experiments using several laser lines, the intensity profile of the spectra as a function of the laser energy is related to the vibrational and electronic structure of the material. In this work, we have measured and interpreted the resonant Raman profiles for samples of chirality enriched single-walled carbon nanotube and for po
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/12/2011
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10. Diferenciação de fluxos sem manutenção de estados em roteadores
O tráfego da Internet é dominado por transações de curta duração. Todavia, apesar da grande quantidade, os fluxos curtos são responsáveis por uma pequena porção da carga total dos enlaces e ainda disputam, injustamente, recursos com conexões que transportam grandes volumes de dados. O desempenho de sessões TCP (Transmission Control Protocol) oper
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/12/2011
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11. Ethanol production from xylose by Pichia stipitis NRRL Y-7124 in a stirred tank bioreactor
The ethanol production by Pichia stipitis was evaluated in a stirred tank bioreactor using semi-defined medium containing xylose (90.0 g/l) as the main carbon source. Experimental assays were performed according to a 2² full factorial design to evaluate the influence of aeration (0.25 to 0.75 vvm) and agitation (150 to 250 rpm) conditions on ethanol product
Brazilian Journal of Chemical Engineering. Publicado em: 2011-03
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12. DeterminaÃÃo do coeficiente de transferÃncia de cargas nas fundaÃÃes de silos verticais cilÃndricos de base semi-V
Engineering structures are designed according to the imposed stress. In the case of silos, there is not a Brazilian standard regulation to prescribe their projects and actions. This limitation leads designers to use the foreign standards requirements which, however, differ from one another. This paper shows the evolution of knowledge about the subject, and a
Publicado em: 2010