Aggregated Approach
Mostrando 1-12 de 41 artigos, teses e dissertações.
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1. Outcomes of endoscopic and open resection of sinonasal malignancies: a systematic review and meta-analysis
Abstract Objective: To compare the efficacy of endoscopic and open resection of sinonasal malignancies. Methods: The search was performed using PubMed (1950–2020), Embase (1974–2020), the Cochrane library, and the website clinicaltrials.gov. The hazard ratio, HR, 95% confidence interval, CI, of the rates of overall survival and disease-free survival an
Brazilian Journal of Otorhinolaryngology. Publicado em: 2022
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2. DEVELOPMENT OF AN ANALYTICAL METHOD FOR THE DETERMINATION OF LEAD BASED ON LOCAL SURFACE PLASMON RESONANCE OF SILVER NANOPARTICLES
Lead is environmental pollutant that even in low trace is harmful for human health and wildlife. In this study we presented a colorimetric method for determination of Pb2+ in water by aggregation of silver nanoparticles capped citrate in the presence of deferoxamine as chelating agent. Silver nanoparticles were prepared by reduction of AgNO3 with NaBH4. In t
Quím. Nova. Publicado em: 2020-06
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3. O Ensino de Matemática em um Número Especial da Revista The New Era, 1934
Resumo Em 1934, a revista The New Era, uma das revistas oficiais da New Education Fellowship (NEF), publicou um número especial sobre o ensino de Matemática. A NEF foi uma organização de natureza internacional, fundada em 1921, no âmbito do movimento internacional da Educação Nova, e que agregava membros de diferentes países, inclusive nomes de educa
Bolema. Publicado em: 02/12/2019
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4. A Tekoá Ka’aguy Porã: Espaço Ancestral e Produção de Subjetividade Mbya-Guarani
Resumo Neste artigo trazemos algumas discussões apresentadas na dissertação “Retomada Mbya-Guarani no Yvyrupá: produção de subjetividade, agenciamentos e criação de estratégias de luta”, que teve como objetivo pesquisar processos de subjetivação, produção de composições e estratégias de enfrentamento/resistência em meio ao movimento dos
Psicol. cienc. prof.. Publicado em: 15/08/2019
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5. Robust Optimal Adaptive Trajectory Tracking Control of Quadrotor Helicopter
Abstract This paper focuses on robust optimal adaptive control strategy to deal with tracking problem of a quadrotor unmanned aerial vehicle (UAV) in presence of parametric uncertainties, actuator amplitude constraints, and unknown time-varying external disturbances. First, Lyapunov-based indirect adaptive controller optimized by particle swarm optimization
Lat. Am. j. solids struct.. Publicado em: 2017-06
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6. Effect of solution concentrations on the morphology of nylon6/66 nanofibrous yarns by blown bubble-spinning
In this paper, a novel method called blown bubble-spinning was employed to produce nanofibers. Compared with the traditional technologies, such as melt blowing and electrospinning, hot airflow is used in blown bubble-electrospinning to overcome the surface tension of the polymer bubbles and to pull multiple jets from the broken bubble into nano scale ones wh
Matéria (Rio J.). Publicado em: 2014-12
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7. Noise Source Distribution of Coaxial Subsonic Jet-Short-Cowl Nozzle
ABSTRACT: The noise source distribution of a short-cowl coaxial jet operating at different velocity ratios is described in this work. This was motivated by an ongoing research about noise prediction of coaxial jets through Acoustic Analogy with purposes of industrial engine application. This research has been carried out between Universidade Federal de Uberl
J. Aerosp. Technol. Manag.. Publicado em: 2014-03
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8. Characterization of human adipose-derived stem cells and expression of chondrogenic genes during induction of cartilage differentiation
OBJECTIVES: Understanding the changes in chondrogenic gene expression that are involved in the differentiation of human adipose-derived stem cells to chondrogenic cells is important prior to using this approach for cartilage repair. The aims of the study were to characterize human adipose-derived stem cells and to examine chondrogenic gene expression after o
Clinics. Publicado em: 2012
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9. Spectroscopic study of molecular dynamics and packing in organic semiconductors / Estudo espectroscópico da dinâmica molecular e empacotamento em semicondutores orgânicos
In this dissertation we present a study of the molecular dynamics and packing in organics semiconductor with different conjugated chains lengths using a of multi-techniques approach, in particular, Nuclear Magnetic Resonance (NMR), Wide Angle X-ray Scattering (WAXS), Differential Scanning Calorimetry (DSC), Raman spectroscopy, UV-Vis absorption and fluoresce
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/07/2011
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10. Concepções e práticas pedagógicas em educação a distância: o caso do curso de administração a distância UAB-UEPB-2006-2010
Distance Education (EaD) has been evolving to meet up with new social demands, and definite as a modality that uses today s most advanced technologies to promote interaction and interactivity to a view of learning among subjects set in a socio-historical context . The EaD s proposal is to insert the individual in the production process of knowledge networkin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/06/2011
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11. An iterative approach for generating statistically realistic populations of households.
Background. Many different simulation frameworks, in different topics, need to treat realistic datasets to initialize and calibrate the system. A precise reproduction of initial states is extremely important to obtain reliable forecast from the model. Methodology/Principal Findings. This paper proposes an algorithm to create an artificial population where in
PLoS ONE. Publicado em: 2011
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12. STOCHASTIC DYNAMIC PROGRAMMING AND CONVEX HULL ALGORITHM IN THE HYDROTHERMAL SYSTEMS OPERATION PLANNING / PROGRAMAÇÃO DINÂMICA ESTOCÁSTICA E ALGORITMO DE FECHOS CONVEXOS NO PLANEJAMENTO DA OPERAÇÃO DE SISTEMAS HIDROTÉRMICOS
This thesis presents a new approach for the expected-cost-to-go functions modeling used in the stochastic dynamic programming (SDP) algorithm. The proposed technique is applied to the long-term operation planning of electrical power systems. Using state space discretization, the convex hull algorithm is used for constructing a series of hyperplanes that comp
Publicado em: 2010