oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 172 )

2018 ( 330 )

2017 ( 345 )

2016 ( 378 )

Custom range...

Search Results: 1 - 10 of 190606 matches for " Elda Raquel Vargas de Oliveira "
All listed articles are free for downloading (OA Articles)
Page 1 /190606
Display every page Item
INFLUêNCIA DO VERMICOMPOSTO NA PRODU O DE MUDAS DE Eucalyptus grandis Hill ex Maiden
Mauro Valdir Schumacher,Marcos Vinicius Winckler Caldeira,Elda Raquel Vargas de Oliveira,Edson Luís Piroli
Ciência Florestal , 2001,
Abstract: Considerando a expressiva área de florestas plantadas com espécies do gênero Eucalyptus e o uso dessa madeira para múltiplos propósitos, sua cultura é de grande importancia econ mica para o Brasil. O uso de substratos com boas características físico-químicas constituem importante fator para a qualidade das mudas produzidas. Neste sentido, o objetivo do trabalho foi avaliar o desenvolvimento de diferentes doses de vermicomposto em tubetes com capacidade de receber aproximadamente 50 cm3 de substrato. O estudo foi conduzido em casa de vegeta o com Eucalyptus grandis, no período de janeiro a abril de 1997. O substrato utilizado para produ o das mudas foi o solo coletado no horizonte A (0-20 cm) da Unidade de Mapeamento S o Pedro (Argissolo Vermelho-Amarelo) acrescido de diferentes doses de vermicomposto (0; 5,0; 10,0; 15,0 e 20,0 cm3 por tubete). O vermicomposto utilizado foi proveniente de produ o de minhocas vermelhas da Califórnia (Eisenia foetida Savigny) valendo-se de esterco de bovino. Após 100 dias de desenvolvimento, observou-se que as mudas de Eucalyptus grandis responderam de maneira distinta às doses aplicadas, n o suportando misturas acima 15,0 cm3 (30%) de vermicomposto por tubete.
Estudo comparativo da toxidez de Palicourea juruana (Rubiaceae) para búfalos e bovinos
Oliveira, Carlos Magno C. de;Barbosa, José Diomedes;Macedo, Raquel S. Cavaleiro de;Brito, Marilene de Farias;Peixoto, Paulo Vargas;Tokarnia, Carlos Hubinger;
Pesquisa Veterinária Brasileira , 2004, DOI: 10.1590/S0100-736X2004000100007
Abstract: an experimental study was performed to establish the toxicity of palicourea juruana for buffaloes and to add new data on the toxicity of this plant for cattle. the clinical and pathological pictures were similar, but a comparison of the lethal doses for buffaloes (1-2g/kg) and cattle (0.25g/kg) shows that the buffalo is at least 4 times more resistant. in experiments performed 10 years earlier with the fresh leaves - collected on the same farm in july, at the beginning of the dry season, only 2 months later than in this second experimental series - the lethal dose for cattle was 2 g/kg. no explanation was found for the extremely high toxicity of the plant observed in the present study.
Fatores que influenciam os enfermeiros a utilizarem a atividade física na assistência a pacientes psiquiátricos
Oliveira, Elda de;Rolim, Marli Alves;
Revista da Escola de Enfermagem da USP , 2003, DOI: 10.1590/S0080-62342003000300012
Abstract: this study addresses the importance of promoting physical activities among psychiatric patients and its goals were to identify the changing behavior potential of the nurses as well as to identify the nurse staff beliefs regarding the benefits of physical activity with the patients, to characterize the way in which these activities are managed inside the psychiatric hospital and finally, to identify the factors which influence the promotion of these activities in the mentioned environment. the fourteen nurses interviewed believe in the benefits of physical exercise, but only nine of them do training. based on the matsudo questionnaire (8), we have noticed that 50% of them are in the action stage, 42.9% are in contemplative stage and only 7.1% are in the pre-contemplative stage.
TECNOLOGIAS DIGITAIS DE INFORMA O E COMUNICA O (TDIC) EM EDUCA O ESCOLAR: UM DIAGNóSTICO A PARTIR DA FORMA O INICIAL DE PROFESSORES DE MATEMáTICA
Raquel Gomes de Oliveira
Nucleus , 2012,
Abstract: This paper reports procedures and results of the first phase of a study, whose overall goal is to diagnose the use of Digital Technologies for Information and Communication (TDIC) in initial mathematics teachers under the Student Teaching. In the first phase, held in academic year 2010, sought to know about the initial conceptions of future teachers of mathematics in the use of TDIC in school education and also know the consequences of supervised experiences in Stages on these concepts. The initiation of the use of TDIC by trainees occurred in the first phase of the research by consulting to the Banco Internacional de Objetos Educacionais (BIOE), making use of learning objects that exist in the same. Participants were undergraduate students of the 3rd year of the Course of Mathematics at a public university and mathematics teachers of state schools of basic education. The results show that there were obstacles so that future teachers had used the TDIC in school education. However, the results also show that the use of TDIC can create opportunities for future teachers reflections and elaborations on knowledge, attitudes and procedures significant to the teaching of the mathematics teacher.Este artigo apresenta procedimentos e resultados da primeira fase de uma pesquisa, cujo objetivo geral foi diagnosticar a utiliza o de Tecnologias Digitais de Informa o e Comunica o (TDIC) na forma o inicial professores de Matemática no ambito do Estágio Curricular Supervisionado. Na primeira fase, realizada no ano letivo de 2010, buscou-se saber sobre as concep es iniciais dos futuros professores de Matemática quanto à utiliza o de TDIC na educa o escolar e também saber as consequências das experiências vivenciadas nos Estágios Supervisionados sobre essas concep es. A inicia o à utiliza o de TDIC pelos estagiários ocorreu na primeira fase da pesquisa através de consulta de tecnologias digitais junto ao Banco Internacional de Objetos Educacionais (BIOE), fazendo uso de objetos educacionais que se encontram no mesmo. Os participantes eram licenciandos do 3o ano de um curso de Licenciatura em Matemática de uma Universidade Pública e professores de Matemática das escolas estaduais da Educa o Básica. Os resultados mostram que existiram obstáculos para que os estagiários utilizassem TDIC na educa o escolar. No entanto, os resultados também mostram que a utiliza o de TDIC pode oportunizar aos futuros professores reflex es e elabora es sobre saberes, procedimentos e atitudes significativas ao fazer docente do professor de Matemática.
ENSINAR E APRENDER FRA ES NA ESCOLA: RETOMADAS ATEMPORAIS
Raquel Gomes de Oliveira
Nuances : Estudos sobre Educa??o , 2011,
Abstract: Neste artigo, relata-se uma pesquisa sobre a aprendizagem de fra es na 5a série do ensino fundamental comparando-se dois métodos diferentes de ensino. Os resultados encontrados nesta pesquisa e em outros trabalhos levam a pensar e agir em níveis mais otimizados em rela o ao ensino-aprendizagem escolar do conceito de fra es. A posi o de professor reflexivo parece contribuir para isto.
Preparando enfermeiros para o SUS: o desafio das escolas formadoras
Bernardino, Elizabeth;Oliveira, Elda de;Ciampone, Maria Helena Trench;
Revista Brasileira de Enfermagem , 2006, DOI: 10.1590/S0034-71672006000100007
Abstract: the stuty shows the selection of some strategy to be used for the graduation courses in nursing to arouse in the students more interest in the collective healthy area. the study is about a case study, that took place in a private graduation course in the southern of brazil, which was noticed the systematised option form the students to the hospital area when the choice of trainee fields to the development from the essay when they accomplish the graduation course. it was used a method from situation strategic planning (pes) like a tool to enlarge the analysis of the problem and reach the aim proposed. as a result, the method showed to be efficient in allowing a revaluation of the teaching strategy from the couse to reach the profile expected.
Effect of the Addiction of Metal Oxide Nanoparticles on the Physical, Chemical and Thermal Properties of PVA Based Nanocomposites  [PDF]
Raquel Couto de Azevedo Gon?alves Mota, Emerson Oliveira da Silva, Lívia Rodrigues de Menezes
Materials Sciences and Applications (MSA) , 2018, DOI: 10.4236/msa.2018.95033
Abstract: In this study, poly(vinyl alcohol) (PVA)-based nanocomposites consisting of metallic oxide nanoparticles (TiO2, ZnO, ZrO2) were obtained from an aqueous solution of 7% PVA, in order to compare the microstructural, and physical properties of bionanocomposite films reinforced with various loading contents (0.1%, 0.2% and 0.3% w/w). They were evaluated regarding their molecular toughness through Nuclear Magnetic Resonance (NMR), regarding their chemical structural through Fourier Transform Infrared Spectroscopy (FTIR), regarding their crystallinity throught X-ray Diffraction (XRD), and regarding termal properties through Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC). The NMR results showed that the smallest concentrations of these oxides have a tendency to disperse better in the polymeric matrix, improving the structural toughness. Besides, changes in the termal resistance of the material were found with the use of TGA and DSC.
Polymer Nanocomposites Used as Scaffolds for Bone Tissue Regeneration  [PDF]
Raquel Couto de Azevedo Gon?alves Mota, Emerson Oliveira da Silva, Lívia Rodrigues de Menezes
Materials Sciences and Applications (MSA) , 2018, DOI: 10.4236/msa.2018.98049
Abstract: Scaffolds are three-dimensional biocompatible structures that can mimic the properties of the extracellular matrix (ECM) of a given tissue, like mechanical support and bioactivity, which provides a platform for cellular adherence, proliferation and differentiation. Consequently, scaffolds are frequently used in tissue engineering with the intention of assisting the regeneration of a damaged tissue, and a major application in bone regeneration. An ideal scaffold needs to be biodegradable, biocompatible, and needs to match the biomechanical properties of bone. Polymers are widely used in this field because they fulfil the first two requirements. However, no polymeric material can achieve mechanical properties similar to the bone. For that reason, polymeric nanocomposites, which consist of ceramic/metallic nanoparticles dispersed in a polymer matrix, are being considered for bone scaffold fabrication in order to overcome this problem, since nanoparticles are known to improve composite mechanical strength, and enhance other properties.
Panorama do poder executivo estadual e suas contribui es para a democracia digital no Brasil
Raquel Gomes de Oliveira,Gra?a Rossetto
Revista Comunica??o Midiática , 2011,
Abstract: The study aims to survey Brazilian digital democracy initiatives, from those offered by the State Government websites. Seeking to answer the question if these websites serve as a means of strengthening democracy in Brazil, we turn to the literature of digital democracy as a theoretical basis and conduct an exploratory descriptive study, examining 26 state government websites and the federal District. In this investigations we make categories that are framed the information and services offered by each government a thus assess the current situation of these initiatives. The results demonstrate that the providing general information and transparency which are prevalent among the initiatives found.
Trigo: avalia??o tecnológica de novas linhagens
Camargo, Celina Raquel de Oliveira;Camargo, Carlos Eduardo de Oliveira;
Bragantia , 1987, DOI: 10.1590/S0006-87051987000200002
Abstract: the new wheat lines iac-22, iac-31, iac-37, iac-41, iac-46, iac-57 and iac-60, obtained from the wheat breeding program of the instituto agron?mico of the state of s?o paulo, brazil, were submitted to technological tests to evaluate the flour quality. samples of wheat from the united states and of the wheat cultivars alondra-s-46 and iac-18 were used as controls. the wheat flours were submitted to chemical tests to determine the protein, lipid, ash, fiber and carbohidrate composition and to rheologic tests using a farinograph, an extensigraph and a viscoamilograph. the final quality of the wheat flour was evaluated through the bread test. the imported wheat, alondra-s-46 and iac-60 showed mill yields slightly superior to the other samples studied. the highest protein levels were found in the lines iac-22, iac-37 and iac-41. these were superior to the levels found for the imported wheat sample, 'alondra-s-46' and 'iac-18'. all wheat flours exhibited maximum viscosity above 1,000 amylograph unities, indicating absence of the alfa amylase enzyme. the imported wheat and the lines iac-31 and iac-41 showed farinographic characteristics typical of medium to strong flour, while 'iac-18' and iac-60 of medium to weak flour. the extensigraphs showed that iac-41, iac-31, iac-57 and iac-46 presented gluten with adequate viscoelasticity characteristics for bread production. the bread tests allowed to conclude that iac-41 and iac-31 gave a "very good" quality bread, similar to the imported wheat; iac-57, iac-37 and iac-60 yielded a "good" quality bread, similar to the 'alondra-s-46'; and iac-46 and iac-22 gave a "regular" quality bread, similar to the 'iac-18'.
Page 1 /190606
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.