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Mostrando 1-12 de 368 artigos, teses e dissertações.
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1. PERFIL SOCIOECONÔMICO DE ESTUDANTES DE QUÍMICA: O CASO DOS CURSOS DA UNESP - ARARAQUARA
Considering the recent expansion and democratization of access to Higher Education in Brazil, this article aims to characterize and compare the socioeconomic profiles of students who are entering the Bachelor (BAC), teacher education degree (LIC) and Chemical Engineering (ENG) at UNESP - Araraquara. A quantitative, longitudinal study was performed according
Química Nova. Publicado em: 2022
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2. Simultaneous Quantification of Amorphous and Crystalline Valsartan in Tablets Using Raman Spectroscopy and Chemometrics Tools
Valsartan is an antihypertensive active pharmaceutical ingredient (API), it is used in the amorphous state in the commercial products. As amorphous materials are metastable, amorphous valsartan can crystallize to valsartan E, promoting changes in the dissolution and bioavailability of the drug. Tablets containing metastable forms of APIs need special conditi
Journal of the Brazilian Chemical Society. Publicado em: 2022
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3. Radially Periodic Metasurface Lenses for Magnetic Field Collimation in Resonant Wireless Power Transfer Applications
Abstract In this paper, a new procedure and topology of magnetic metasurface lens are proposed for improving the performance of Resonant Wireless Power Transfer systems. Firstly, three subwave-length unit cells are optimized in order to get negative magnetic permeability in the same frequency, each one with a different refractive index, and they are experime
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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4. A laparoscopic vascular blocking forceps used for renal carcinoma combined with tumor thrombus
ABSTRACT Objectives: To discuss the feasibility and efficacy of a laparoscopic vessel blocking forceps in laparoscopic inferior vena cava (IVC) thrombectomy (1–3). Materials and methods: The patient was secured in a left lateral decubitus position. The surgical field was built with 4-trocar. The laparoscopic vessel blocking forceps was used to block the
Int. braz j urol.. Publicado em: 2021-06
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5. Special consideration in the dosing of medications for patients with COVID-19 and acute kidney injury
ABSTRACT Objectives: To discuss the feasibility and efficacy of a laparoscopic vessel blocking forceps in laparoscopic inferior vena cava (IVC) thrombectomy (1–3). Materials and methods: The patient was secured in a left lateral decubitus position. The surgical field was built with 4-trocar. The laparoscopic vessel blocking forceps was used to block the
Int. braz j urol.. Publicado em: 2021-06
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6. A RACIST CHALLENGE MIGHT FORCE US APART’: DIVERGENCE, RELIANCE, AND EMPATHY IN PARABLE OF THE SOWER, BY OCTAVIA BUTLER
Abstract This article aims to analyze racial issues in the resistance community depicted in Parable of the Sower (1993), by Octavia Butler, named ‘Acorn’. By researching the critical approaches to this novel, I observed that, as much as they admit race as a force that interferes in the relation between offenders and offended, they have not gone further i
Ilha Desterro. Publicado em: 2021-04
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7. SUBJECT ELLIPSIS IN EARLY CHILD LANGUAGE
Abstract This paper aims to discuss whether parametric analyses can account for missing subjects in child English. I review previous parametric analyses of missing subjects and present a new learning model built upon a more recent version of the Null Subject Parameter (Holmberg, 2010a). Parametric analyses of the phenomenon have the advantage of giving a sim
Ilha Desterro. Publicado em: 2020-12
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8. Virtual Screening of Secondary Metabolites of the Family Velloziaceae J. Agardh with Potential Antimicrobial Activity
The objective of this work was to carry out a bibliographic survey of secondary metabolites isolated from the Velloziaceae family, creating a bank of compounds. After the bank was created, four prediction models for potentially active compounds against pathogenic microorganisms (Candida albicans, Escherichia coli, Pseudomonas aeruginosa and Salmonella sp.) w
J. Braz. Chem. Soc.. Publicado em: 2020-10
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9. MEASURING ACCESSIBILITY: A BIG DATA PERSPECTIVE ON UBER SERVICE WAITING TIMES
RESUMO O presente artigo busca relacionar informações sobre o tempo de espera de serviços de aluguel de carro, especificamente Uber, com variáveis socioeconômicas da cidade de São Paulo, com a intenção de explorar a possibilidade de uso dessas medidas como um proxy de acessibilidade. Foi montada uma base com a média dos dados de tempo de espera do s
Rev. adm. empres.. Publicado em: 10/01/2020
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10. TiO2 Decorated Sand Grains for Photodegradation of Pollutants: Methylene Blue and Ciprofloxacin Study
This study shows a preparation and evaluation of a new non-expensive TiO2 based photocatalyst built over sand grains surfaces as an alternative green technology for water treatment. The semiconductor covalently bonded to the silica sand grains (sand@TiO2) prepared by hydrolysis of isopropoxide orthotitane over sand grains, showed a high surface area 296 m2 g
J. Braz. Chem. Soc.. Publicado em: 2020-01
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11. IDENTIFICAÇÃO DE ADULTERANTES DE BIODIESEL METÍLICO DE CRAMBE EM MISTURAS COM DIESEL, USANDO FT-MIR E CARTAS DE CONTROLE MULTIVARIADAS BASEADAS NO SINAL ANALÍTICO LÍQUIDO
Adulterants in biodiesel/diesel blends modifies its physical and chemical properties. In this work, Fourier Transform Mid-Infrared spectrometry (FT-MIR) and multivariate control charts based on Net Analyte Signal (NAS) were used to monitor the quality of Crambe methyl biodiesel in relation to the biodiesel content and the presence of adulterants. The calibra
Quím. Nova. Publicado em: 2020-01
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12. Geohelminths in the soil of the Laguna dos Patos in Rio Grande do Sul state, Brazil
Resumo Este estudo teve como objetivo analisar a prevalência de ovos e larvas de parasitos - que podem causar doenças em humanos e outros animais - no solo de praças públicas localizadas na orla das praias do Laranjal, na Laguna dos Patos, em Pelotas, Rio Grande do Sul, Brasil. Quatro viagens de campo - uma por estação - foram realizadas em seis praça
Braz. J. Biol.. Publicado em: 09/12/2019