Modulated Systems
Mostrando 1-12 de 134 artigos, teses e dissertações.
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1. Are Imidazoles Versatile or Promiscuous in Reactions with Organophosphates? Insights from the Case of Parathion
Is the broad mechanistic versatility of imidazole towards organophosphates (OPs), that has inspired many catalysts and sensors, beneficial? Herein, a thorough analysis is given seeking to unravel this puzzle. For OPs from the P=O family, imidazole attacks the phosphorus atom exclusively (N-phosphorylates). With the P=S family which are less reactive, an unus
J. Braz. Chem. Soc.. Publicado em: 21/10/2019
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2. Escoamento Atmosférico sobre uma Colina Isolada Revelado a Partir de Dados de um Veículo Aéreo não Tripulado (VANT)
Resumo Este artigo é uma contribuição do Projeto “uso de VANT para prospecção eólica em sistemas aquáticos”, que consistiu num esforço multi-instrumental e multi-institucional para estudar a camada limite atmosférica influenciada por extensos corpos d’água e pelas feições do entorno como colinas, rampas e mudanças abruptas de rugosidade. O
Rev. bras. meteorol.. Publicado em: 05/08/2019
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3. Potential of hydrogen (pH) differentially modulates cadmium stress response in abscisic acid-deficient sitiens tomato mutant
ABSTRACT Uptake of nutrients and cadmium (Cd) are dependent upon many factors, including plant species, ions concentration and pH. Tolerance to Cd-induced oxidative stress can be modulated by phytohormones such as abscisic acid (ABA), which induce the production of reactive oxygen species, activating proteins and enzymes involved in stress response and possi
Bragantia. Publicado em: 05/08/2019
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4. Uso de VANT para Prospecção Eólica em Sistemas Aquáticos: Desenho Amostral e Avanços Instrumentais
Resumo O Projeto “uso de VANT para prospecção eólica em sistemas aquáticos” consistiu num esforço multi-instrumental e multi-institucional para estudar a camada limite atmosférica influenciada por extensos corpos d’água e pelas feições do entorno como colinas, rampas e mudanças abruptas de rugosidade. Dois trabalhos de campo foram conduzidos
Rev. bras. meteorol.. Publicado em: 05/08/2019
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5. Thermal radical polymerization of Bis(methacrylamide)s
Abstract Methacrylamides monomers for dental applications were synthesized using a one-step procedure starting from methacrylic anhydride and the respective diamine: N,N’-(propane-1,3-diyl)-bis(N-ethyl-2-methylacrylamide) (1), N,N’-(butane-1,4-diyl)-bis(2-methacrylamide) (2), N,N’-(octane-1,8-diyl-)bis(2-methylacrylamide) (3) and N,N’-(1,4-phenylene)
Polímeros. Publicado em: 27/06/2019
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6. Development and evaluation of multiparticulate biphasic system for the treatment of circadian diseases
Multiparticulate systems have biopharmaceutical advantages when compared to the monolithic systems, once they allow different patterns of drug release and can be used in different treatments. The aim of the present work was to develop a biphasic controlled release delivery system, using propranolol hydrochloride (PROP) that can be used for the treatment of c
Braz. J. Pharm. Sci.. Publicado em: 08/04/2019
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7. Radiographic and Immunohistochemical Evaluation of Root Canal Treatment Using Different Irrigation Systems
Resumo O objetivo deste estudo foi avaliar o reparo periapical e a síntese de mediadores inflamatórios após tratamento endodôntico em dentes de cães com lesão periapical, em sessão única, utilizando diferentes protocolos de irrigação. Lesões periapicais foram induzidas experimentalmente em dentes de cães e aleatoriamente divididas em 4 grupos: G1
Braz. Dent. J.. Publicado em: 2019-03
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8. Effectiveness of carbohydrates as a functional ingredient in glycemic control
Abstract High postprandial glycemia in the non-diabetic population is one of the known universal mechanisms for the progression of noncommunicable diseases (NCDs), which have impacted the finances of both individuals and of health systems. In order to highlight the role of carbohydrates in glycemic control and its implications on health, the International L
Food Sci. Technol. Publicado em: 14/11/2018
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9. Analysis of radioprotection and antimutagenic effects of Ilex paraguariensis infusion and its component rutin
DNA repair pathways, cell cycle checkpoints, and redox protection systems are essential factors for securing genomic stability. The aim of the present study was to analyze the effect of Ilex paraguariensis (Ip) infusion and one of its polyphenolic components rutin on cellular and molecular damage induced by ionizing radiation. Ip is a beverage drank by most
Braz J Med Biol Res. Publicado em: 16/07/2018
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10. Nitric oxide modulates ATP-evoked currents in mouse Leydig cells
Testosterone synthesis within Leydig cells is a calcium-dependent process. Intracellular calcium levels are regulated by different processes including ATP-activated P2X purinergic receptors, T-type Ca2+ channels modulated by the luteinizing hormone, and intracellular calcium storages recruited by a calcium-induced calcium release mechanism. On the other hand
Braz J Med Biol Res. Publicado em: 15/03/2018
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11. Photoluminescence of Solvent-Selected Fluorescent Moieties in MEH-PPV Solutions and Films
In this work, we examined how photoluminescence in poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) is affected by morphology, dictated by the mode of preparation. For that, MEH-PPV dilute solutions in good and non-solvents, thick cast films with poly[methylmethacrylate] (PMMA) as inert matrix and spin-coated thin films were prepared. Thes
J. Braz. Chem. Soc.. Publicado em: 2018-03
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12. Multifunctional Nanocomposites between Different Carbon Nanostructures and Styrene Acrylic Latex
This work describes the preparation, characterization and properties study of multifunctional nanocomposites between poly(styrene-co -butyl acrylate) latex and different carbon nanostructures: iron-filled carbon nanotubes (CNT), graphene or graphene oxide. Different approaches were employed to prepare stable aqueous dispersions of these nanostructures, accor
J. Braz. Chem. Soc.. Publicado em: 2017-08