Results 101 to 110 of about 2,027,025 (314)

Electrochemical Studies of Benzoquinone, Hydrobenzoquinone, Diphenoquinone and Hydrodiphenoquinone‐Based Compounds

open access: yesElectrochemical Science Advances, EarlyView.
The advantages of organic redox mediators over traditional inorganic counterparts are availability; they may in the future enlarge their applicability in all systems involving electron transfer during electrochemical processes. Several quinones, diphenoquinones and respective reduced forms, hydrobenzoquinones and hydrodiphenoquinones, were synthesized,
Flávia Leitão   +4 more
wiley   +1 more source

Assistência e educação da infância pobre nas instituições educativas do Pará nos séculos XIX e XX

open access: yesRevista Cocar, 2018
O objetivo deste trabalho foi identificar as principais instituições educativas destinadas à infância no estado do Pará, nos séculos XIX e XX, destacando aspectos da formação direcionada para as crianças nesses espaços. O estudo se constituiu em um levantamento de pesquisas sobre instituições paraenses concebidas para a infância pobre, no ...
Pinheiro, Welington da Costa   +2 more
openaire   +1 more source

Investigação qualitativa em educação

open access: yesRevista Educação em Questão, 2022
Genira Genira Fonseca de Oliveira   +2 more
semanticscholar   +1 more source

Student Perceptions of Secondary Science Teachers’ Practices Following Curricular Change [PDF]

open access: yes, 2011
Inquiry-based teaching has emerged as a highly valued strategy in science education. In Portugal, the science curriculum has been redesigned in order to promote such teaching. This implies substantial change in teacher practice. It is therefore important
Azevedo, Mário   +6 more
core  

Optimized reconstruction of the absorption spectra of kidney tissues from the spectra of tissue components using the least squares method

open access: yesJournal of Biophotonics, EarlyView.
The absorption coefficient spectra of healthy and cancerous kidney tissues were reconstructed from the absorption spectra of tissue components using constant weights. Both reconstructions allowed to calculate the concentrations of the tissue components and a comparison between the healthy and chromophobe renal cell carcinoma kidney showed an increase ...
Maria R. Pinheiro   +7 more
wiley   +1 more source

Universities and institutionalization of regional innovation policy in peripheral regions: Insights from the smart specialization in Portugal

open access: yesRegional Science Policy &Practice, EarlyView., 2023
Abstract Regional innovation policies are currently influenced by a series of territorial innovation models, with the regional innovation system (RIS) approach being one of the prominent examples. The rationale of smart specialization strategies (S3s) is deeply influenced by the RIS concept and highlights the importance of entrepreneurial discovery and
Hugo Pinto
wiley   +1 more source

Analysis of the experimental absorption spectrum of the rabbit lung and identification of its components

open access: yesJournal of Biophotonics, EarlyView.
The broadband absorption coefficient spectrum of the rabbit lung was reconstructed from the absorption spectra of tissue components. The similar accumulation of melanin and lipofuscin was retrieved from the broadband baseline in the absorption coefficient spectrum, and the calculation of the absorption fold ratios for proteins, DNA and hemoglobin ...
Maria R. Pinheiro   +2 more
wiley   +1 more source

Estudos sobre a criança no/do Norte do Brasil: algumas reflexões acerca do que revelam as pesquisas na área da educação

open access: yesRevista Cocar, 2018
Este texto vincula-se à pesquisa “Infância no Norte do Brasil: inventário da produção acadêmica em dissertações e teses da área da Educação (1998-2012)”. Trata-se de uma pesquisa do tipo “estado da arte” que pretende identificar, no conjunto da produção acadêmica na área da educação, as tendências e as lacunas sobre as quais o
Corrêa, Carlos Humberto Alves   +2 more
openaire   +1 more source

Open teaching practice: reflections on the use of OER educational activities [PDF]

open access: yes, 2018
This article presents results from a study carried out with Brazilian and Portuguese professors whose objective was to understand the dynamic of using and sharing online resources in their pedagogical practices.
Nobre, Ana, Souza, Elizabeth
core  

A global meta‐analysis of ecological functions and regulating ecosystem services of freshwater bivalves

open access: yesLimnology and Oceanography, EarlyView.
Abstract Freshwater bivalves are globally distributed, diverse, and common in benthic communities. Many taxa, particularly in the most species‐rich order, Unionida, are declining due to anthropogenic stressors, while a small number of non‐native species have become increasingly abundant and widespread, commonly replacing native bivalve assemblages.
Alexandra Zieritz   +35 more
wiley   +1 more source

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