Results 71 to 80 of about 1,353,697 (268)

La participación de padres de familia o tutores en el desempeño académico del estudiante, caso: Colegio Preparatorio Vespertino de Xalapa

open access: yesUniversita Ciencia, 2016
El presente estudió se realizó con el propósito de saber cómo es la participación de los padres de familia o tutores en el desempeño académico del estudiante del Colegio Preparatorio Vespertino de Xalapa.
Revista Universita Ciencia
doaj   +1 more source

A Ciência Aberta: o contributo da Ciência da Informação. viii Encontro Ibérico EDICIC, 2017. [PDF]

open access: yes, 2018
The Biennial Iberian Encounters of the Association of Education and Research in Information Science of Ibero-America and the Caribbean (EDICIC) are part of the events organized by the Iberian Chapter of EDICIC International.
Borges, Maria Manuel   +2 more
core  

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

Colaboradores

open access: yesEducación y Ciencia, 2011
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Educación y Ciencia
doaj   +1 more source

A ciência na literatura infantil e juvenil. O caso de Galileu Galilei [PDF]

open access: yes, 2015
ISSN 0214-7807, Boletín das Ciencias, ano XXVIII, nº 81A exploração de literatura relacionada com a Ciência na educação em Ciências é justificada com o potencial contributo na compreensão do conhecimento científico, do processo de construção da Ciência ...
Afonso, Ana Sofia   +1 more
core  

Evolving Platinum‐Copper Nanostructures for Enhanced Photothermal Therapy and Controlled Copper Release in Cancer Therapy

open access: yesAdvanced Functional Materials, EarlyView.
Platinum‐Copper bimetallic nanoparticles may evolve depending on their synthesis under tumor microenvironment conditions and play a dual role as chemotherapeutic agents after releasing Cu ions and as near infrared photothermal agents with the Pt‐rich remaining frames.
Jose I. Garcia‐Peiro   +7 more
wiley   +1 more source

Sobre a Degola do Boi, segundo Aristóteles [PDF]

open access: yes, 2004
Réplica a Angioni, “Relações causais entre eventos na ciência aristotélica: uma discussão crítica de Ciência e Dialética em Aristóteles, de Oswaldo Porchat”
Porchat Pereira, Oswaldo
core  

Precise Quantification of Angiogenesis in 3D Biomaterials Using in Vitro CAM Models: Enhancing 3Rs in Research and Minimizing in Vivo Dependency

open access: yesAdvanced Functional Materials, EarlyView.
The study develops elastin–fibrin scaffolds and evaluates angiogenesis using the chorioallantoic membrane (CAM) model. Advanced imaging with confocal microscopy and Indocyanine Green dye enables precise 3D quantification of vascular networks. Findings demonstrate superior microvessel visualization compared to micro‐CT using Microfil and Optiray 350 ...
Ece Melis Er   +8 more
wiley   +1 more source

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