Results 11 to 20 of about 15,974 (115)

Tailoring Microstructure and Hardness in Maraging 300 Steel via 2.4 wt.% Niobium Addition and Controlled Aging Treatments

steel research international, EarlyView.
High Nb (2.4 wt.%) addition to Maraging 300 steel drives lattice distortion and nanoscale Nb–Mo‐rich precipitation, confirmed by energy‐dispersive X‐ray spectroscopy mapping (Mo ~5.4 wt.%, Nb ~2.5 wt.%). Nanoindentation reveals strong matrix hardening (H >4.8 GPa) at 480°C aging, while 560°C induces ~1.92 vol.% reverted austenite, enabling tunable ...
Laylla Sharon B. Peixoto, Mohammad Masoumi, Luís Henrique N. de Lima, Marcos Natan da Silva Lima, Luis Flávio Gaspar Herculano, Isabel Ferreira de Barros, Geronimo Perez, Maria Vittoria Moraschini Reis, Hamilton Ferreira Gome Abreu, Marcelo J. Gomes da Silva   +9 more
wiley   +1 more source

The PhenoChange network protocol for monitoring leaf phenology in tropical dry ecosystems using phenocameras

Methods in Ecology and Evolution, EarlyView.
Abstract Tropical dry ecosystems (TDEs) cover half of the tropics and play a key role in global carbon dynamics. TDEs present distinct canopy and ground layers that often exhibit contrasting phenological patterns. On‐the‐ground observations of phenology by the human eye, though valuable, may suffer from limited temporal resolution and observer biases ...
Desirée Marques Ramos, Francisco Maiato P. Gonçalves, Magna Soelma de Moura, Mário Marcos do Espírito‐Santo, Ítalo Antônio Cotta Coutinho, Vera De Cauwer, Bruna de Costa Alberton, Jonathan Muledi, Casey M. Ryan, Manuel Jundo Cachissapa, Millena C. N. Santana, Gabriel Ileni K. Uusiku, Antonia Mirelle Lopes Marques, Frances O'Leary, Renata D. Françoso, Nattália do Prado Neves, John L. Godlee, Maria Maraíza P. Santos, Leena Naftal, David Nkulu, Mathew Williams, Albert B. Phillimore, Andrew D. Richardson, Matúš Seči, Milcíades Chicomo, Natasha Wesely, David T. Milodowski, Sam B. Harrison, Ludovica Oddi, Consolata Siniscalco, Fabrícia Conceição M. Mota, Jurandy Almeida, Ricardo da Silva Torres, Mario B. B. Siqueira, Kyle G. Dexter, Leonor Patricia C. Morellato   +35 more
wiley   +1 more source

Evidence of internal structure validity of the nursing outcome “Mechanical Ventilation Weaning Response: Adult (0412)” for critically ill COVID‐19 patients

International Journal of Nursing Knowledge, EarlyView.
Abstract Purpose To evaluate the evidence of internal structure validity of the nursing outcome (NO) “Mechanical Ventilation Weaning Response: Adult (0412)” of the NOs classification for critically ill COVID‐19 patients. Methods A methodological study focused on internal structural validation, part of a multicenter study, was carried out in the ...
Aline Batista Maurício, Viviane Martins da Silva, Agueda Maria Ruiz Zimmer Cavalcante, Larissa Giardini Bruni, Sue Ann Moorhead, Elizabeth Swanson, Karen Dunn Lopez, Marcos Venícios de Oliveira Lopes, Alba Lucia Bottura Leite de Barros   +8 more
wiley   +1 more source

Comparación del conocimiento de física entre nivel medio superior y superior

Revista Digital Internacional de Psicología y Ciencia Social
La alfabetización científica se refiere al desarrollo de habilidades y competencias necesarias para conceptualizar los fenómenos naturales. Estos conocimientos ayudan a enfrentarse de manera efectiva a problemáticas cotidianas y pueden ser modificados ...
José Vladimir Ruiz Pérez, María Luisa Cepeda Islas, Eduardo Fernández Nava, Alexis Raziel Valdés Rodríguez   +3 more
doaj   +1 more source

Descrição atualizada da paralisia cerebral

Developmental Medicine &Child Neurology, EarlyView.
Resumo A paralisia cerebral (PC) é um termo descritivo amplamente utilizado para um espectro de deficiências motoras causadas por lesão ou malformação cerebral não progressiva ocorrida durante as fases iniciais do desenvolvimento. Avanços recentes nas áreas da genética, de pesquisa em inflamação e em neurofisiologia têm refinado a compreensão ...
Bernard Dan, Peter Rosenbaum, Lucinda Carr, Martin Gough, John Coughlan, Nonyelum Nweke   +5 more
wiley   +1 more source

Dinámica del movimiento rotacional: propuesta de experiencias sencillas para facilitar su comprensión

Revista Brasileira de Ensino de Física
Presentamos una propuesta de innovación en la enseñanza del movimiento rotacional a través de la realización de experiencias sencillas. La implementación de experiencias de fácil realización permitiría una mejor articulación entre el abordaje ...
N Beraha, M.F Carusela, C.D El Hasi
doaj   +1 more source

Process‐Induced Anisotropy and Fracture Behavior of Pellet‐3D Printed PLA and PLA/Flax Biocomposites

Polymer Composites, Volume 47, Issue 18, Page 16442-16462, 20 September 2026.
Fused Granular Fabrication of PLA and PLA/flax biocomposites, followed by tensile testing and fracture surface analysis to evaluate the effects of raster orientation and layer number on anisotropy and fracture behavior. ABSTRACT Fused granular fabrication (FGF) enables cost‐effective, large‐scale polymer additive manufacturing; however, the mechanical ...
Fernando Ancio, Luis Távara, Luis Miguel Ferreira   +2 more
wiley   +1 more source

¿Es [formula] igual a [formula] + [formula]?

Momento, 1995
En este artículo analizamos desde un punto de vista crítico una interpretación errónea de la derivada respecto al tiempo de la cantidad de movimiento lineal en la segunda ley de Newton, frecuentemente enseñada en los cursos elementales de Mecánica.
Eduardo Zalamea G., Roberto París E., Oscar Ocaña G., Jairo Arbey Rodríguez M.   +3 more
doaj  

Endurecimiento superficial de aceros y fundiciones mediante láser de Nd: YAG

Revista de Metalurgia, 2001
En el trabajo se presentan los resultados del tratamiento térmico superficial, con técnica láser, de superficies metálicas. Con el empleo de un láser de Nd:YAG se procedió al endurecimiento superficial de los aceros AISI 1045, W1, W112 y fundiciones de ...
R. Sagaró, H. Carvajal, J. S. Ceballos, R. Cabrera, J. Mascarell   +4 more
doaj   +1 more source

What drives citizen action to promote systemic change—Insights into circular citizenship behaviours from five European countries

Environmental Psychology Research, Volume 1, Issue 3, September 2026.
Abstract Introduction Addressing environmental challenges requires transforming our current economic and societal systems towards more circularity. Though governments and businesses play key roles in promoting systemic change, citizens can also drive systemic change by engaging in circular citizenship behaviours (CCBs).
Isabel M. Pacheco, Ellen van der Werff, Linda Steg   +2 more
wiley   +1 more source