Results 11 to 20 of about 50,759 (202)

Plastic recycling and their use as raw material for the synthesis of carbonaceous materials [PDF]

Heliyon, 2022
Pollution by polymeric materials - in particular plastics - has a negative effect on the health of our planet. Approximately 4.9 billion tons of plastic are estimated to have been improperly disposed of, with the environment as their final destination ...
Rodrigo A. Muñoz Meneses, Gerardo Cabrera-Papamija, Fiderman Machuca-Martínez, Luis A. Rodríguez, Jesús E. Diosa, Edgar Mosquera-Vargas   +5 more
doaj   +2 more sources

Detención fotoacústica de transiciones de fase en cerámicas ferroeléctricas

Boletín de la Sociedad Española de Cerámica y Vidrio, 1999
Phase transition on ferroelectric ceramics were detected by photoacoustic laser technique which allows the measurement of the Curie temperature and ferro-paraelectric transitions.
Castañeda Guzmán, R., Villagrán Muniz, M., Saniger Blesa, J. M.   +2 more
doaj   +2 more sources

Transiciones de fase fuera del equilibrio en fluidos complejos

Educación Química, 2018
En este artículo se exponen brevemente ejemplos de flujos de fluidos complejos en los que se puede dar una transición de fase inducida por la fuerza del flujo fuera del equilibrio termodinámico.
Octavio Manero-Brito
doaj   +2 more sources

Inestabilidad hidrodinámica y teoría de Landau de las transiciones de fase fuera de equilibrio [PDF]

Publicacions Matemàtiques, 1980
Antoranz, J. C., Velarde, M. G.
core   +8 more sources

Introducing a common taxonomy to support learning from failure in conservation

Conservation Biology, Volume 37, Issue 1, February 2023., 2023
Abstract Although some sectors have made significant progress in learning from failure, there is currently limited consensus on how a similar transition could best be achieved in conservation and what is required to facilitate this. One of the key enabling conditions for other sectors is a widely accepted and standardized classification system for ...
Iain Dickson, Stuart H. M. Butchart, Allison Catalano, David Gibbons, Julia P. G. Jones, Katie Lee‐Brooks, Thomasina Oldfield, David Noble, Stuart Paterson, Sugoto Roy, Julien Semelin, Paul Tinsley‐Marshall, Rosie Trevelyan, Hannah Wauchope, Sylvia Wicander, William J. Sutherland   +15 more
wiley   +1 more source

Maternal self‐efficacy development from pregnancy to 3 months after birth

Infant Mental Health Journal: Infancy and Early Childhood, Volume 43, Issue 6, Page 864-877, November 2022., 2022
Abstract The present study uses a prospective longitudinal study design to investigate the development of maternal self‐efficacy in the transition phase to parenthood, drawing on a large sample of socially and/or culturally disadvantaged families (N = 292).
Gizem Samdan, Tilman Reinelt, Natalie Kiel, Birgit Mathes, Sabina Pauen   +4 more
wiley   +1 more source

A systematic review of 20 years of crisis and disaster research: Trends and progress

Risk, Hazards &Crisis in Public Policy, Volume 12, Issue 4, Page 374-392, December 2021., 2021
Abstract The field of crisis and disaster studies has proliferated over the past two decades. Attention is bound to grow further as the world negotiates the prolonged challenges of the Covid‐19 pandemic. In this review, we provide an overview of the main foci, methods, and research designs employed in the crisis and disaster research fields in the ...
Jeroen Wolbers, Sanneke Kuipers, Arjen Boin   +2 more
wiley   +1 more source

Capacidad de investigación en obesidad infantil en Latinoamérica y en las poblaciones latinas de Estados Unidos: estado de la investigación, problemas, oportunidades y líneas de trabajo para el futuro

Obesity Reviews, Volume 22, Issue S5, Octubre 2021., 2021
Resumen La obesidad infantil es un problema grave en Latinoamérica y entre la población latina de EE. UU. Para ser eficaces, las políticas de salud pública tienen que estar guiadas por evidencias contextuales pertinentes, lo cual exige una capacidad de investigación sostenida a través del tiempo.
Deborah Salvo, Diana C. Parra, Alejandra Jáuregui, Eugen Resendiz, Armando Garcia‐Olvera, Daniel Velazquez, Nicolas Aguilar‐Farias, Uriyoán Colón‐Ramos, Adriano A. Hino, Harold W. (Bill) Kohl III, Michael Pratt, Andrea Ramirez Varela, Manuel Ramirez‐Zea, Juan A. Rivera   +13 more
wiley   +1 more source

Enhancing the Photoluminescence and Microstructural Transformations of Al₂O₃/Glass–Ceramic Composite Coatings by Laser Irradiation

Applied Sciences, 2021
This work presents an analysis of the crystallization process and the influence of laser surface modification on the crystalline phases and optical responses of Al2O3/glass–ceramic coatings deposited on a brass substrate. We used a CO2 laser at different
Julio Correa, Jairo Murillo, Javier Jurado, Lina García, Liliana Tirado, Hernán Colorado, Jesús Evelio Diosa, Alessandro Chiasera, Clara Goyes   +8 more
doaj   +1 more source

FASES Y TRANSICIONES DE FASE EN MATERIA CONDENSADA

Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2023
En este trabajo se emplea el enfoque de las transiciones de fase y fenómenos críticos para analizar procesos físicos en la materia condensada, destacando avances recientes que influyen en la física de materiales. Se investigan las transiciones en electrolitos sólidos, presentando resultados de medidas de conductividad (σ) y calor específico (Cp) en ...
openaire   +1 more source