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Mostrando 1-12 de 472 artigos, teses e dissertações.
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1. Pode-se utilizar inibidores da enzima conversora de angiotensina (inibidores da ECA) como captopril ou enalapril ou bloqueadores do receptor de angiotensina (BRA) como losartana em pacientes que apresentam insuficiência renal crônica com albuminúria ou associada a diabetes tipo 2?
O uso de inibidores da ECA e BRA não é contraindicado em pacientes que apresentam insuficiência renal crônica com albuminúria ou associada a diabetes. Pelo contrário, nesses pacientes, essas medicações podem e devem ser utilizadas, pois diminuem a excreção urinária de proteínas e retardam a progressão da doença renal.
Para a maioria do
Núcleo de Telessaúde Rio Grande do Sul. Publicado em: 12/06/2023
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2. Quais agentes são responsáveis pela pericementite medicamentosa?
A pericementite medicamentosa pode ser causada por agentes químicos utilizados durante o tratamento endodôntico como substâncias químicas irrigadoras (o hipoclorito de sódio, por exemplo. Quanto maior for a concentração empregada, maior a possibilidade da ação irritante nos tecidos), medicações intracanais sem compatibilidade biológica e mater
Núcleo de Telessaúde Maranhão HU-UFMA. Publicado em: 12/06/2023
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3. Devemos rastrear sífilis em idoso com espectro clínico de demência?
A Neurossífilis pode causar vários tipos de síndromes neuropsiquiátricas. Era causa frequente de demência antes do aparecimento e disseminação do uso da penicilina no tratamento das fases iniciais da doença
. Atualmente não é frequente
, mas, embora incomum, a doença deve fazer parte do diagnóstico diferencial em pessoas de meia
Núcleo de Telessaúde Espírito Santo. Publicado em: 12/06/2023
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4. Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications
Abstract For oxide semiconductors for application in dye-sensitized solar cells (DSSCs), titanium dioxide conjugated with zinc oxide thin films was synthesized and characterized. The UV (ultraviolet) spectrum characterization showed a peak of absorbance at around 355 nm, with a band gap of 3.25 eV and reflectance around 85%. Such characteristics allowed the
Cerâmica. Publicado em: 2023
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5. Analysis and evaluation of structural properties of Co3O4 microparticles obtained at low temperature
Abstract In the present research, the synthesis of cobalt oxide Co3O4 was carried out using the sol-gel technique with subsequent heat treatment at 225 and 235 °C. The final product obtained was characterized by X-ray diffraction (XRD), showing a pure crystalline phase of Co3O4, cell parameters a=b=c=8.071 Å, and a volume of 525.7 Å3. The particle size wa
Cerâmica. Publicado em: 2022
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6. RATIONAL FOR CONTINUING TERLIPRESSIN AFTER ENDOSCOPIC VARICEAL LIGATION IN ACUTE VARICEAL HAEMORRHAGE NEEDS FURTHER EVIDENCE: A PILOT STUDY
RESUMO Contexto A hemorragia varicosa (HV) é emergência médica. A ligadura endoscópica imediata das varizes (LEV) é terapêutica. A terlipressina é usada em HV e contínua por 2—5 dias mesmo após a LEV. Como a hemostasia é alcançada principalmente pela LEV, o benefício do uso contínuo da terlipressina após o evento é desconhecido. Objetivo A
Arquivos de Gastroenterologia. Publicado em: 2022
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7. X-ray line profile analysis and magnetic and optical properties of FexZn0.95-xCr0.05O nanoparticles fabricated by sol-gel route
Abstract FexZn0.95-xCr0.05O nanoparticles have been obtained for the different concentrations of Fe ions by using the sol-gel method. The hexagonal wurtzite structure of all the samples was confirmed by Rietveld refined X-ray diffraction patterns. The addition of Fe ions decreased lattice constants a and c from 3.2487 to 3.2474 Å and 5.2043 to 5.2029 Å, re
Cerâmica. Publicado em: 2022
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8. Thermal, structural and optical properties of magnetic BiFeO3 micron-particles synthesized by coprecipitation method: heterogeneous photocatalysis study under white LED irradiation
Abstract Bismuth ferrite, BiFeO3 (BFO) prepared via a coprecipitation method, was used as an effective photocatalyst for the degradation of methylene blue (MB) using a white light-emitting diode (LED-50 W) lamp. The as-prepared material was characterized by TGA, XRD, SEM-EDX, FTIR, and UV-vis-DRS techniques. The effects of experimental key parameters such as
Cerâmica. Publicado em: 2022
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9. Heterogeneous Fenton-like catalytic degradation of phenazine dye over CeO2 (CP-2) nanoscale powder
Abstract A heterogeneous Fenton-like process was explored for oxidation of phenazine dye using ceria polishing material (CP-2). XRD, SEM, FTIR, UV-vis DRS, and pHPZC techniques were applied to characterize the catalyst features. The performance of the heterogeneous Fenton-like process was investigated under various parameters (reaction time, pH, H2O2 concent
Cerâmica. Publicado em: 2022
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10. Green Synthesis of Upconverting NaYF4 and NaGdF4 Materials and Energy Levels Determination
An alternative green route using a domestic microwave oven to synthesize NaGdF4:Yb,Tm and NaYF4:Yb,Er was successfully developed. Decreasing dopants concentration increased the β-NaREF4/α-NaREF4 ratio in NaGdF4. The scanning electron microscopy (SEM) images of NaGdF4 showed particles ranging from 500 nm to 1 μm with formation of aggregates up to 100 μm,
J. Braz. Chem. Soc.. Publicado em: 2021-08
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11. Complexes with Furyl-Substituted 3-Hydroxychromone: Synthesis, Characterization and Fluorescence Studies
2-(2-Furyl)-3-hydroxychromone (HL) reacts with MII ions in the formation of quadratic [Cu(L)2] (3), octahedral [M(L)2(OH2)2] (M = Co (1), Ni (2), Zn (4), Mn (5)) and seesaw [M(L)2] (M = Sn (6), Pb (7)) complexes. Recrystallization of complexes 1-3 in presence of pyridine lead to [M(L)2(py)2] (1a-3a) aducts. All compounds were characterized by Fourier transfo
J. Braz. Chem. Soc.. Publicado em: 2021-08
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12. First-Principles Calculations of a New Semi-Conductive Carbon Allotrope Named ABF-Carbon
Carbon is an extremely versatile element and can generate a plethora of structures with distinct properties. Proposing new possible metastable allotropic structures for carbon has been the subject of increasing interest over the past few years. In this contribution, we present a new carbon allotrope, named ABF-Carbon, based on the connection of spiropentadie
J. Braz. Chem. Soc.. Publicado em: 2021-04