Results 161 to 170 of about 2,259,836 (375)

Effect of Nanoparticles Type and Content on the Antimicrobial Activity of Magnetoelectric Polymer‐Based Composites

Macromolecular Bioscience, EarlyView.
Magnetoelectric P(VDF‐TrFE) nanocomposites containing CFO or Fe3O4 nanoparticles were developed to generate electroactive microenvironments under magnetic stimulation. At 1 Hz, particularly with 20% CFO, strong antimicrobial effects were observed against E. coli and S. aureus. This approach highlights the potential of magnetically activated surfaces to
Joana Moreira, Margarida M. Fernandes, Vitor Correia, Daniela M. Correia, Carmen R Tubio, Vesna Lazic, Senentxu Lanceros‐Mendez   +6 more
wiley   +1 more source

A General Dynamic Programming Approach to the Optimal Water Storage Management for Irrigation

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper proposes a dynamic programming approach targeted to solve a natural resource problem of water storage management for irrigation in an environmentally and socially sustainable way. The problem we address in our formulation, focusing on the control of water storage in tanks, is based on assumptions that are less restrictive than those
Abdelkader Belhenniche, Danilo Pena, A. Pedro Aguiar, Maria do Rosário de Pinho   +3 more
wiley   +1 more source

Interaction of Dirac δ$$ \delta $$‐Waves in the Inviscid Levine and Sleeman Chemotaxis Model

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This article investigates interactions of δ$$ \delta $$‐shock waves in the inviscid Levine and Sleeman chemotaxis model ut−λ(uv)x=0$$ {u}_t-\lambda {(uv)}_x=0 $$, vt−ux=0$$ {v}_t-{u}_x=0 $$. The analysis employs a distributional product and a solution concept that extends the classical solution concept.
Adelino Paiva
wiley   +1 more source

High β‐diversity in fig wasp communities driven by species turnover in widely distributed Neotropical fig trees

Oikos, EarlyView.
Wasp communities associated with fig trees, Ficus spp., are a model system to investigate how local and regional processes shape biodiversity across large geographical ranges. We investigated the β‐diversity of fig wasp assemblages associated with three widely distributed Neotropical fig species – F. citrifolia, F. obtusifolia and F. pertusa – using 27
Elmecelli Moraes de Castro Souza, Fernando Henrique Antoniolli Farache, Luis Francisco Mello Coelho, Finn Kjellberg, Astrid Cruaud, Jean‐Yves Rasplus, Rodrigo Augusto Santinelo Pereira   +6 more
wiley   +1 more source

Using Lignin and Spent Coffee Grounds as Bio‐Additives in 3D‐Printable Poly Lactic Acid/Multi‐Walled Carbon Nanotube Composites for Advanced Electronic Applications

Polymer Composites, EarlyView.
Bio‐based additives derived from lignin and spent coffee grounds (SCG) are used to enhance MWCNT dispersion in PLA composites, enabling improved electrical conductivity and reliable in material extruded strain‐gauge sensors. ABSTRACT In this work, three bio‐based additives, lignin, spent coffee grounds (SCG), and oil extracted from SCG (Ox‐SCG) were ...
Silvia Lage‐Rivera, Ana Ares‐Pernas, M. Sonia Dopico‐García, Carlos M. Costa, Nelson Pereira, Senentxu Lanceros‐Mendez, María‐José Abad   +6 more
wiley   +1 more source

Vera Caslavska Empolga a Nossa Escola

Revista de Educação Física, 2020
[...]
Revisa da Educação Física
doaj  

<b>Consumo alimentar e estado nutricional de pré-escolares de um centro de educação infantil do município de São Paulo<br>Dietary intake and nutritional status of the preschool of public nursery school from São Paulo</b>

Alimentos e Nutrição, 2010
<p align="justify"> O objetivo deste estudo foi avaliar o consumo alimentar e o estado nutricional de 66 pré-escolares de 2 a 6 anos de idade, durante o período de permanência em um Centro de Educação Infantil do Município de São Paulo, SP. Para a avaliação do consumo alimentar foi utilizada a pesagem direta dos alimentos. A determinaçã
C. R. SILVA, B. A. E. T. MARTINS, V. L. M. I. OLIVEIRA, C. K. MIYASAKA   +3 more
openaire   +1 more source

Educational Technologies. Analysis of Master dissertations carried out in Portugal [PDF]

, 2007
Acknowledging the importance scientific research may have in terms of the foundation, orientation and evaluation of the use of technologies in an educational context, it is only natural that there should also be greater knowledge on the research carried ...
Costa, Fernando Albuquerque
core  

Dimensional Stability and Mechanical Performance of Thermally Conditioned High‐Heat Polylactic Acid Parts Produced by Fused Filament Fabrication

Polymer Engineering &Science, EarlyView.
Dimensional accuracy and tensile strength of high‐heat PLA parts printed by FFF as a function of printing temperature and annealing, highlighting the 210‐240°C window where geometry, UTS and model predictions are jointly optimized. ABSTRACT Additively manufactured high‐heat PLA parts must balance dimensional fidelity and tensile performance.
Cleiton Lazaro Fazolo de Assis, Kelvin dos Santos Tiene, Gabriel Boni Magosse   +2 more
wiley   +1 more source