Nature Contact
Mostrando 1-12 de 237 artigos, teses e dissertações.
-
1. Risk factors for SARS-CoV-2 infection and epidemiological profile of Brazilian anesthesiologists during the COVID-19 pandemic: cross-sectional study
Abstract Introduction The devasting effects of COVID-19 have caused economic and health impacts worldwide. Anesthesiologists were one of the key professionals fighting the pandemic and have been highly exposed at their multiple sites of clinical practice. Thus, the importance of determining the nature of the infection in this population that provides care t
Brazilian Journal of Anesthesiology. Publicado em: 2022
-
2. SALA DE AULA INVERTIDA NO ENSINO DA QUÍMICA ORGÂNICA: UM ESTUDO DE CASO
The flipped classroom is one of the types of rotation model strategies that aim of increasing interaction and personalized contact time between students and teachers in the classroom setting. In this study, we investigated the application of the flipped classroom strategy in two classes of the different semesters in the discipline of Organic Chemistry. The t
Quím. Nova. Publicado em: 2021-04
-
3. A Formação-Intervenção na Atenção Primária: uma Aposta Pedagógica na Educação Médica
RESUMO A implantação do Sistema Único de Saúde e o reconhecimento da atenção primária à saúde (APS) como reorientadora do modelo de atenção à saúde trouxeram consigo a necessidade de novos processos de formação que incorporassem o ensinar e o aprender aos processos cotidianos de trabalho. Apresentamos um relato de experiência de implementaç�
Rev. bras. educ. med.. Publicado em: 13/01/2020
-
4. Environmental education program in Ecuador: theory, practice, and public policies to face global change in the Anthropocene
Resumo Em 2008, a nova Constituição do Equador reconheceu os Direitos da Natureza para restaurar a pegada ecológica. Por esse motivo, o objetivo principal deste artigo é refletir sobre as teorias, práticas e políticas públicas desenvolvidas nas escolas equatorianas com o Programa de Educação Ambiental ‘Terra de Todos’. Como resultado, este traba
Ensaio: aval.pol.públ.Educ.. Publicado em: 2019-12
-
5. Surface morphology and repellency mechanism investigation of Salvinia molesta plant
ABSTRACT Bionics is a versatile tool with a technological potential, which designers use to search for signs and clues about functional elements and mechanisms in nature that allow for the development of products. The purpose of this study was to analyze the morphology of the aquatic plant Salvinia molesta, aiming to determine the water repellency of its lea
Matéria (Rio J.). Publicado em: 25/11/2019
-
6. Electrospinning synthesis and assessment of physicochemical properties and biocompatibility of cobalt nitrate fibers for wound healing applications
Abstract: The aim of this study was to develop polyurethane (PU) wound dressing incorporated with cobalt nitrate using electrospinning technique. The morphology analysis revealed that the developed composites exhibited reduced fiber and pore diameter than the pristine PU. The electrospun membranes exhibited average porosity in the range of 67% - 71%. Energy-
An. Acad. Bras. Ciênc.. Publicado em: 29/07/2019
-
7. Blood compatibility assessments of electrospun polyurethane nanocomposites blended with megni oil for tissue engineering applications
Abstract: Tissue engineering holds as a prominent technique to repair or replace the damaged human parts to recreate its native function. In this research, a novel scaffold based on polyurethane (PU) comprising megni oil was electrospun for tissue engineering applications. The obtained polyurethane blended with megni oil nanofibers were characterized by scan
An. Acad. Bras. Ciênc.. Publicado em: 19/06/2019
-
8. Quando a experiência é capturada pela representação: governamentalização das drogas na Saúde e no sistema de justiça criminal
A conjunção entre o saber médico e as práticas jurídicas é um importante vetor de governamentalização de verdades que instrumentalizam a intervenção sobre a chamada questão da droga sob a perspectiva de uma gestão populacional. No encontro das experiências em torno de duas pesquisas nesse campo, o presente relato articula as vivências dos pesqu
Interface (Botucatu). Publicado em: 14/02/2019
-
9. Membranas Compuestas: propiedades superficiales y estabilidad térmica
ABSTRACT The composite membranes were manufactured with crosslinking poly(vinyl alcohol) on polyethersulfone porous membranes by coating process. PES membranes were exposed to air plasma for the purpose of surface modification. The coating of the support membrane was carried out by using a polymer matrix with a crosslinking agent. The physico-chemical proper
Matéria (Rio J.). Publicado em: 19/07/2018
-
10. Morphological and Chemical Effects of Plasma Treatment with Oxygen (O2) and Sulfur Hexafluoride (SF6) on Cellulose Surface
Cellulose is a polymer widely available in nature, however its applications may be restrict due to its hydrophilic character. The creation of hierarchical structures on the surface is one of the required factors to obtain the hydrophobicity of this material. In order to compare the morphological and chemical effects caused by the action of different gases in
Mat. Res.. Publicado em: 01/02/2018
-
11. Surface, thermal and hemocompatible properties of novel single stage electrospun nanocomposites comprising polyurethane blended with bio oilTM
ABSTRACT In this work, the physicochemical and blood compatibility properties of prepared PU/Bio oil nanocomposites were investigated. Scanning electron microscope (SEM) studies revealed the reduction of mean fiber diameter (709 ± 211 nm) compared to the pristine PU (969 nm ± 217 nm). Fourier transform infrared spectroscopy (FTIR) analysis exposed the char
An. Acad. Bras. Ciênc.. Publicado em: 26/10/2017
-
12. Comparative toxicity of essential oil and blends of selected terpenes of Ocotea species from Pernambuco, Brazil, against Tetranychus urticae Koch
ABSTRACT Essential oils from the leaves of two species of the genus Ocotea that occur in the Atlantic Forest in the state of Pernambuco, Brazil, were analyzed using gas chromatography-mass spectrometry. The acaricidal activity of these oils as well as 11 selected components and blends were evaluated in fumigation and residual contact tests against the two-sp
An. Acad. Bras. Ciênc.. Publicado em: 31/07/2017