Results 51 to 60 of about 3,034 (169)

Covalent Functionalization of NiFe Layered Double Hydroxides using Tris(Hydroxymethyl)Aminomethane

open access: yesSmall, EarlyView.
Covalent functionalization of NiFe layered double hydroxides with tris(hydroxymethyl)aminomethane enables controlled growth, enhanced structural order, and improved processability. Temporary TRIS anchoring promotes stable water‐based inks and binder‐free electrode fabrication, leading to enhanced oxygen evolution activity and long‐term stability under ...
Alvaro Seijas Da Silva   +8 more
wiley   +1 more source

Nanotecnologias e os desafios no campo alimentar: Que futuro nos espera?

open access: yesTomo, 2016
O artigo discute os possíveis impactos sociais que podem ser ge- rados frente aos avanços no campo das nanotecnologias, quan- do utilizadas na produção alimentar.
Tania Elias Magno da Silva   +2 more
doaj   +1 more source

Intervenir en el mundo de los átomos: Feynman y los fulerenos [PDF]

open access: yes, 2017
Hace medio siglo el físico Richard Feynman, ganador del Premio Nóbel, fue invitado a pronunciar un discurso en una institución tecnológica de California.
Sánchez Sánchez, Marcos Manuel
core   +1 more source

Smart NIR‐Emitting Organometallo Pt(II)‐Ionosilica Aerogel for Selective Au(III) Sensing and Recovery

open access: yesSmall, EarlyView.
This study reports a near‐infrared emitting ionic aerogel composed of cationic cyclometalated Pt(II) moieties linked by Si─O─Si bonds. The resulting porous hybrid material enables the selective detection and recovery of Au(III) ions from mixed‐metal solutions. Owing to its reversible luminescent response and thiourea‐assisted gold recovery, the aerogel
Janira Herce   +8 more
wiley   +1 more source

Perspectivas para a regulação das nanotecnologias aplicadas a alimentos e biocombustíveis

open access: yesVigilância Sanitária em Debate: Sociedade, Ciência & Tecnologia, 2013
O artigo aborda as possibilidades de regulação das nanotecnologias aplicadas aos alimentos e aos biocombustíveis. Nesse sentido, busca-se estudar os riscos e perigos advindos dessa junção, bem como algumas alternativas regulatórias, tomando-se como ...
Wilson Engelmann   +2 more
doaj   +1 more source

Pejerrey (Odontesthes bonariensis) Under Siege: Main Infectious Diseases and Their Role in Aquaculture and Wild Populations Amidst Environmental Change

open access: yesJournal of Fish Diseases, Volume 48, Issue 4, April 2025.
ABSTRACT The pejerrey (Odontesthes bonariensis) is a key species for recreational and commercial fisheries in Argentina and holds significant aquaculture potential. It has been introduced to various countries worldwide, including Japan, where intensive aquaculture has developed.
Aarón Torres‐Martínez   +4 more
wiley   +1 more source

La regulación de las nanotecnologías: una mirada desde las diferencias EUA-UE | A regulação das nanotecnologias: um olhar desde as diferenças EUA-UE

open access: yesVigilância Sanitária em Debate: Sociedade, Ciência & Tecnologia, 2016
La regulación de las nanotecnologías está en discusión a nivel mundial. La discusión gira en torno a dos cuestiones principales: los potenciales riesgos a la salud y el medio ambiente; y la normalización y homogenización de criterios para la ...
Guillermo Foladori, Noela Invernizzi
doaj   +1 more source

Gobernanza de la tecnociencia y participación ampliada. Entrevista a Silvio Funtowicz y Javier Echevarría [PDF]

open access: yes, 2007
Dentro de las actividades del grupo de investigación CTS y el Observatorio de Cultura Científica de la Universidad de Oviedo llevadas a cabo en 2006 se celebró el 9 y 10 noviembre el Coloquio "Gobernanza de la ciencia y participación ciudadana ...
Sanz Merino, Noemí
core  

From Hierarchical Capitalism to Developmental Governance: The Emergence of Concerted Skills Formation in Middle‐Income Countries

open access: yesRegulation &Governance, EarlyView.
ABSTRACT Skills formation is a pressing issue for middle‐income countries given the pace of technological change. In Latin America, scholars point to the hierarchical type of capitalism and its segmentalist skills formation system as the main roadblocks to exiting the middle‐income trap.
Aldo Madariaga, Mariana Rangel‐Padilla
wiley   +1 more source

Reflexões acerca das nanotecnologias e as novas densidades técnicas-científicas-informacionais na agricultura

open access: yesEstudios Sociales, 2009
As pesquisas sobre os potenciais usos das nanotecnologias no agronegócio suscitam enormes dúvidas sobre os reais benefícios ou malefícios em relação à adoção desta inovação.
Soraia de Fátima Ramos   +7 more
doaj  

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