Results 111 to 120 of about 5,196 (220)

Representações e novas tecnologias

open access: yes, 2018
Esta exposição centra a atenção sobre a dificuldade que o paradigma moderno tem de explicar a tecnologia e a sociedade e tenta mostrar como a relação e a mistura entre as duas as constitui, como funciona e como pode ser compreendida. A representação moderna vê o mundo composto por elementos independentes, exteriores uns aos outros, constituindo uma ...
openaire   +1 more source

Cooperative Reactivity of Methylene‐Linked Bis‐Triazolylidene Ligands in Tungsten‐Catalyzed Alcohol Dehydrogenation

open access: yesChemistryEurope, Volume 4, Issue 3, March 2026.
A tetracarbonyl tungsten complex bearing a bis‐triazolylidene ligand exhibits excellent catalytic activity in the acceptorless dehydrogenative coupling of 1‐phenylethanol and 2‐aminobenzyl alcohol to form 2‐phenylquinoline with H2 evolution. Mechanistic investigations combining experimental and DFT studies reveal the unprecedented base‐promoted ...
Beatriz Garcia   +2 more
wiley   +1 more source

Integrating landscape ecology into generic surveillance plans for bark‐ and wood‐boring beetles

open access: yesEcological Applications, Volume 36, Issue 2, March 2026.
Abstract International trade poses a growing threat to global biosecurity, with bark‐ and wood‐boring beetles representing a major concern for forest health. Non‐native species are frequently introduced at points of entry, where populations can establish in the surrounding landscape.
Davide Nardi   +21 more
wiley   +1 more source

Aprendizagens e novas tecnologias

open access: yesRoteiro, 2011
Pretendo aqui, muito preliminarmente, reunir alguns argumentos favoráveis à multiplicidade de oportunidades de aprender que o aluno pode encontrar hoje em ambientes de aprendizagem mediados por novas tecnologias. Centro-me principalmente na desconstrução de algumas resistências pedagógicas (EVANS, 2001) ainda persistentes entre nós como “transmissão de
openaire   +3 more sources

Boundaries Within the Paepalanthus chiquitensis Species Complex (Eriocaulaceae)

open access: yesFeddes Repertorium, Volume 137, Issue 1, March 2026.
ABSTRACT Four morphotypes with associated names are presented toward a more reliable circumscription of Paepalanthus chiquitensis. Morphotype I, associated with the names P. chiquitensis, P. speciosus var. bolivianus, and P. amoenus var. bolivianus, is restricted to savannas of Bolivia and western Brazil.
Marcelo Trovó
wiley   +1 more source

Iron Oxide Synthesized with the Assistance of Açaí Berry Extract as Electrocatalysts for Water Splitting

open access: yesChemistrySelect, Volume 11, Issue 9, 5 March 2026.
ABSTRACT Green hydrogen is a sustainable and clean fuel that has the potential to significantly transform the global energy landscape, while also contributing to reduce the greenhouse gas emissions and mitigate the climate changes. Water electrolysis is an efficient method for the production of green hydrogen, in which water is split into oxygen and ...
Ana Paula Nazar de Souza   +5 more
wiley   +1 more source

Museus e Museologia: novas sociedades, novas tecnologias

open access: yes, 2011
The article discusses the new forms of communication established with the development of new technologies in the information society. Museums are understood as constantly changing institutions. The relationships established in the huge network of computers envision rich possibilities of interaction between museums and societies.
Magaldi, Monique   +1 more
openaire   +1 more source

A Reproducible Workflow for Macrophage Membrane Isolation and Nanocore Selection Toward Bioinspired Nanoparticles Targeting Immunologically Cold Tumors

open access: yesSmall Methods, Volume 10, Issue 5, 9 March 2026.
A reproducible workflow is established for isolating macrophage membranes to enable the efficient preparation and characterization of membrane‐coated nanoparticles. By optimizing M2‐like nanovesicle stability and nanocore compatibility, this procedure advances the engineering of macrophage membrane‐coated nanoparticles with improved tumor targeting ...
Diana Peixoto   +6 more
wiley   +1 more source

Carbon/TiO2 Materials From Textile Waste: A Sustainable Approach for Dye Removal

open access: yesEnvironmental Quality Management, Volume 35, Issue 3, Spring 2026.
ABSTRACT This study synthesized carbon/TiO2 composites from textile waste through titanium isopropoxide impregnation and calcination to address dye contamination in wastewater. The composites exhibited enhanced specific surface area and pore volume with higher TiO2 content.
Brendah Isabelly Moreira Santos   +4 more
wiley   +1 more source

Tecnologias digitais: reflexões sobre usos e excessos ilustradas pelos quadrinhos de Andre Dahmer

open access: yesTexto Livre: Linguagem e Tecnologia, 2015
RESUMO: Este artigo propõe algumas reflexões sobre possíveis atravessamentos/impactos nos processos de subjetivação pela apropriação das tecnologias digitais no século XXI e de como seus usos e (supostos) excessos têm impactado nas constituições ...
Janaina Cabello
doaj  

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