Shift Systems
Mostrando 1-12 de 242 artigos, teses e dissertações.
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1. A 2.4 GHz Coplanar Solar Cell Patch Antenna with a Semi-Analytical Evaluation of Temperature Effects
Abstract Solar cells integrated with antennas have aroused scientific interest as an attractive energy source alternative in low power devices for IoT and Wireless Sensor Network applications. Since the space for all components in the systems is scarce, different integration ideas have been proposed in this field. However, further analysis of the performance
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. [5]Helicene-Scaffold Fluorescence Sensing for Selective Detection of Au3+ Ions and Gold Nanoparticle
A new quenching fluorescence sensor (MDP) with high productivity was easily synthesized from a [5]helicene anhydride derivative and propargyl bromide. This MDP sensor has significant photophysical properties, including high fluorescence emission and a large Stokes shift, and it exhibits selectivity and an excellent detection response in distinguishing Au3+ i
J. Braz. Chem. Soc.. Publicado em: 2021-04
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3. METHOD DEVELOPMENT AND VALIDATION FOR THE FLUOROQUINOLONES DETERMINATION BY STABILIZED SILVER NANOPARTICLES
Silver nanoparticles (AgNPs) stabilized with glutathione (GSH) were used as nanosensors for the determination of fluoroquinolones such as ciprofloxacin (CIP), norfloxacin (NOR) and enrofloxacin (ENRO) in aqueous systems. The AgNPs were stabilized with GSH (Ag-GSH NPs), whereas the decrease of the surface plasmon resonance (SPR) band at 400 nm and the bathoch
Quím. Nova. Publicado em: 2020-03
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4. 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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5. Effects of Reduced and Conventional Tillage on Weed Communities: Results of a Long-Term Experiment in Southwestern Spain
RESUMO: Uma desvantagem importante na adoção de técnicas de cultivo mínimo (MT) e plantio direto (NT) é o deslocamento de plantas daninhas frequentemente observado, promovendo espécies adaptadas e, com isso, um controle de plantas daninhas mais precário. Essas mudanças só podem ser detectadas com experimentos de longo prazo, e os resultados podem di
Planta daninha. Publicado em: 02/12/2019
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6. De la sécurité des patients à la résilience des systèmes de soins: un état de l’art
Abstract Patient security has become a priority in public health policies. In 30 years, health systems have adopted the risk management tools designed for industries. The purpose of this review of the literature is to describe the current security models and approaches deployed in health systems and to explore new perspectives. The bibliographic search was c
Ciênc. saúde coletiva. Publicado em: 2019-03
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7. Water-Soluble Benzazole Dyes Fluorescent by ESIPT: Structural Characterization, Photophysical Properties and Its Application as a Probe for Direct Staining of Helminths
A series of four water-soluble benzazole dyes that emit fluorescence by the excited state intramolecular proton transfer (ESIPT) mechanism were structurally characterized by Fourier transform infrared spectroscopy (FTIR), 1H and 13C nuclear magnetic resonance (NMR) attached proton test (APT) and mass spectrometry. Their photophysical properties were systemat
J. Braz. Chem. Soc.. Publicado em: 2019-03
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8. Dynamic analysis of gun barrel vibrations due to effect of an unbalanced projectile considering 2-D transverse displacements of barrel tip using a 3-D element technique
Abstract In this paper, dynamic analysis of two different weapon systems (35 mm Anti-Aircraft Barrel (AAB) and 120 mm Grooved Tank Barrel (GTB)) under the effect of statically unbalanced projectile has been performed with a new 12 DOF 3-D element technique using Finite Element Method (FEM). The muzzle deviations, which negatively affect the barrel shooting a
Lat. Am. j. solids struct.. Publicado em: 06/08/2018
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9. Species descriptions and digital environments: alternatives for accessibility of morphological data
Abstract Taxonomists' efforts throughout history provide significant amount of data that give support for establishing the specific identity of several groups of biological systems. In addition to identifying species, taxonomic research offers a wide range of biological information that can be used in other disciplines, e.g. evolution, ecology, integrated pe
Rev. Bras. entomol.. Publicado em: 2017-12
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10. A tale of two neglected tropical infections: using GIS to assess the spatial and temporal overlap of schistosomiasis and leprosy in a region of Minas Gerais, Brazil
BACKGROUND Despite public health efforts to reduce the global burden of leprosy, gaps remain in the knowledge surrounding transmission of infection. Helminth co-infections have been associated with a shift towards the lepromatous end of the disease spectrum, potentially increasing transmission in co-endemic areas. OBJECTIVES Using this biologically plaus
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-04
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11. Avaliação clínica do equilíbrio em adultos hemiparéticos: uma revisão sistemática
Introdução A hemiparesia é um quadro comum após acidente vascular encefálico e pode levar a alterações do equilíbrio. A avaliação do equilíbrio com instrumentos padronizados pode identificar indivíduos com risco de queda e verificar resultados de intervenções. Objetivos Identificar instrumentos com propriedades psicométricas adequadas e a apl
Fisioter. mov.. Publicado em: 2015-03
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12. A regra de Bent contextualiza a força da ligação de hidrogênio em clusters trimoleculares
This article presents a theoretical study of the molecular properties of trimolecular clusters of CnHm∙∙∙HCN∙∙∙HX formed by the ϖ∙∙∙H and n∙∙∙H hydrogen bonds. The interaction strengths of these interactions are in line with the variations in s-character, and independently, the red-shift rise whether stronger or weaker bound systems
Quím. Nova. Publicado em: 2014