Results 21 to 30 of about 13,538 (172)

Productos botánicos y microbiales para el manejo de plagas: Potencial y limitaciones

AIA Avances en Investigación Agropecuaria, 2022
Introducción. Los productos botánicos y microbiales representan una opción amigable al ambiente para el manejo de plagas, debido a los efectos adversos que ocasionan los plaguicidas químicos (Montejo-Canul et al., 2019; Nexticapan-Garcéz et al., 2021 ...
Esaú Ruiz-Sánchez
doaj   +1 more source

Flourensia cernua: Hexane Extracts a Very Active Mycobactericidal Fraction from an Inactive Leaf Decoction against Pansensitive and Panresistant Mycobacterium tuberculosis

Evidence-Based Complementary and Alternative Medicine, Volume 2011, Issue 1, 2011., 2011
The efficacy of decoction in extracting mycobactericidal compounds from Flourensia cernua (Hojasé) leaves and fractionation with solvents having ascending polarity was compared with that of (i) ethanol extraction by still maceration, extraction with a Soxhlet device, shake‐assisted maceration, or ultrasound‐assisted maceration, followed by ...
Gloria María Molina-Salinas, Luis Manuel Peña-Rodríguez, Benito David Mata-Cárdenas, Fabiola Escalante-Erosa, Silvia González-Hernández, Víctor Manuel Torres de la Cruz, Herminia Guadalupe Martínez-Rodríguez, Salvador Said-Fernández   +7 more
wiley   +1 more source

Vigilancia de la publicidad de productos químicos para piscinas comercializados por internet

Revista Española de Comunicación en Salud, 2020
Introducción: La comunicación de los peligros asociados a los productos químicos es un aspecto fundamental para mejorar la confianza de los consumidores en el comercio electrónico.
Joaquín Gámez de la Hoz, Ana Padilla Fortes, Marta Padilla-Ruiz   +2 more
doaj   +1 more source

Actualización de la guía de almacenamiento de productos químicos [PDF]

, 2021
En esta guía se hace referencia al sistema de almacenamiento de sustancias químicas, se establece un marco de recomendaciones para la preparación de las actividades que se realizan en el laboratorio.
Cioni Ramírez, Silvano, Guerrero Ruiz, Mayra Alejandra   +1 more
core  

Wear and Friction Behavior of Cellulose Nanofibers-Based Biogreases

Lubricants
(1) Background: Developing fully bio-based lubricating greases requires eco-friendly alternatives to conventional harmful components. This study highlights unmodified nanocellulose as an effective structuring agent in vegetable oils, enabling 100% bio ...
Claudia Roman, Miguel Ángel Delgado Canto, María García-Pérez, Samuel D. Fernández-Silva, Ke Li, Moisés García-Morales   +5 more
doaj   +1 more source

Production and Characterization of Chitosan–Polyanion Nanoparticles by Polyelectrolyte Complexation Assisted by High-Intensity Sonication for the Modified Release of Methotrexate

Pharmaceuticals, 2020
A promising strategy to improve the effectivity of anticancer treatment and decrease its side effects is to modulate drug release by using nanoparticulates (NPs) as carriers.
Yhors Ciro, John Rojas, Maria J. Alhajj, Gustavo A. Carabali, Constain H. Salamanca   +4 more
doaj   +1 more source

Breaking into nature's secret medicine cabinet: lichens – a biochemical goldmine ready for discovery

New Phytologist, Volume 246, Issue 2, Page 437-449, April 2025.
Summary Secondary metabolites are a crucial source of bioactive compounds playing a key role in the development of new pharmaceuticals. Recently, biosynthetic research has benefited significantly from progress on various fronts, including reduced sequencing costs, improved genome/metabolome mining strategies, and expanding tools/databases to compare ...
Garima Singh, Francesco Dal Grande, Francis M. Martin, Marnix H. Medema   +3 more
wiley   +1 more source

The combination of a microbial and a non‐microbial biostimulant increases yield in lettuce (Lactuca sativa) under salt stress conditions by up‐regulating cytokinin biosynthesis

Journal of Integrative Plant Biology, Volume 66, Issue 10, Page 2140-2157, October 2024.
The combination of a microbial and a non‐microbial biostimulant increased yield of lettuce under salt stress. Application of the non‐microbial biostimulant triggered an abscisic acid‐dependent response and, when applied with the microbial biostimulant, potentiated the responses triggered by the microbial biostimulant and elicited a cytokinin‐dependent ...
Patricia Benito, Marina Celdrán, Javier Bellón, Vicente Arbona, Miguel González‐Guzmán, Rosa Porcel, Lynne Yenush, José M. Mulet   +7 more
wiley   +1 more source

Plan de acción para la cooperación regional en la gestión de productos químicos y desechos en América Latina y el Caribe 2021-2024 : informe de progreso 2021-2022 [PDF]

, 2023
En el marco de la XX Reunión del Foro de Ministras y Ministros de Medio Ambiente, y con arreglo a la Decisión 8 sobre Químicos y Desechos, se establece en el año 2016 la Red Intergubernamental de Químicos y Desechos para América Latina y el Caribe.
Programa de las Naciones Unidas para el Medio Ambiente (PNUMA), Red Intergubernamental de Químicos y Desechos   +1 more
core  

Predisposition in Dynamic Covalent Chemistry: The Role of Non‐Covalent Interactions in the Assembly of Tetrahedral Boronate Cages

Chemistry – A European Journal, Volume 30, Issue 30, May 28, 2024.
Latent intramolecular non‐covalent interactions (NCIs) within the building blocks play a crucial role in the assembly of molecular organic cages (MOCs) via Dynamic Covalent Chemistry (DCC). These intramolecular interactions emerge from induced conformational restrictions during cage assembly, ultimately dictating the reaction outcome in a relay‐like ...
Manuel Rondelli, Jorge Pasán, Israel Fernández, Tomás Martín   +3 more
wiley   +1 more source