Results 21 to 30 of about 2,102,014 (178)

Biciusuarios y violencia vial en los territorios urbanos. Educación física como factor de transformación

Bitácora Urbano Territorial, 2021
Encontrar alternativas para la transformación de dinámicas que vulneran la interacción social en los territorios urbanos destinados a la movilidad, implica un análisis de las condiciones del espacio y de las prácticas que en este se llevan a cabo.
Jeysson Javier González Moreno
doaj   +1 more source

Technological innovation for environmental monitoring of strategic ecosystems: implications for sustainability

Frontiers in Environmental Science
One of the critical challenges in environmental, social, and economic terms is the progressive loss of strategic ecosystems, such as wetlands, moorlands, and mangroves.
Siberman Carvajal Romero, Jairo Rojas Ángel, Mercedes Gaitan-Angulo   +2 more
doaj   +1 more source

Conocimiento y aplicación de los Planes de Movilidad Escolar por parte de los docentes y directivos de algunas instituciones educativas en la ciudad de Bogotá

Práxis Pedagógica, 2022
La presente investigación se desarrolló con el objetivo de dar a conocer cómo se desarrollan los Planes de Movilidad Escolar (pme) establecidos por el Decreto 594 del 2015 en algunas de las instituciones educativas de Bogotá a partir de la descripción y
Luisa Fernanda Salinas Farfán
doaj   +1 more source

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

Advanced Materials, Volume 38, Issue 51, 11 September 2026.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea, Jordan Santiago Martinez, M. Asunción Molina, Jaime Mazarío, Lucy Costley‐Wood, Christian Cerezo‐Navarrete, Carlo Marini, Eduardo Villalobos‐Portillo, Andrew M. Beale, Pascual Oña‐Burgos   +9 more
wiley   +1 more source

Internet-memes como controles de lectura en la materia de diseño geométrico de carreteras

Revista Facultad de Ingeniería, 2022
En la actualidad, el desarrollo y acceso tecnológico está llevando a cambiar diversos hábitos en población, como, por ejemplo, la forma en cómo se consume la información.
Yasmany García-Ramírez
doaj   +1 more source

Volatile Organic Compounds Emitted by Fungi Have Substantial Effects on Growth and Disease Resistance in Arabidopsis thaliana

Plant, Cell &Environment, Volume 49, Issue 9, Page 7168-7190, September 2026.
ABSTRACT Volatile organic compounds (VOCs) emitted by certain fungi have previously been suggested to modulate plant development and their response to stresses. While some fungal species, such as Trichoderma harzianum, are known to produce VOCs, the production of VOCs in other phylogenetically divergent species, such as Mucor mucedo, was previously ...
Sara Yugueros, Asier Largo‐Gosens, Cristina Úbeda, Cristina Hernández‐Fernández, Alba Manga‐Robles, Diego Rebaque, Antonio Encina, Hugo Mélida   +7 more
wiley   +1 more source

Barbituric Acids as Nucleophiles in Enantioselective Mannich Reactions: Organocatalytic Access to Quaternary Aminopyrazolone–Barbiturate Adducts

Advanced Synthesis &Catalysis, Volume 368, Issue 15, 1 August 2026.
An enantioselective Mannich reaction using barbituric acids as nucleophiles provides access to chiral heterocycles bearing quaternary stereocenters. The transformation is catalyzed by a bifunctional thiourea with high selectivity. An immobilized catalyst enables recycling and application under continuous‐flow conditions, offering an efficient and ...
Rodrigo Sánchez‐Molpeceres, Mónica Llorente‐Pérez, Laura Martín, Alicia Maestro, José M. Andrés   +4 more
wiley   +1 more source

Human Leukocyte Elastase Triggered Nanoparticles for Targeted Antimicrobial Delivery and Oral Microbial Modulation

Advanced NanoBiomed Research, Volume 6, Issue 8, August 2026.
This study explores enzyme‐responsive nanoparticles for targeted antimicrobial release in inflamed oral environments. Nanoparticles formed by complexing peptides and chlorhexidine respond to human leukocyte elastase and release chlorhexidine selectively. P7 (ECAAPVCE)‐based formulations show optimal properties and stability, with antimicrobial activity
Mohammed A. Hadis, Ignacio Insua, Farah N. S. Raja, Álvaro Vila, William M. Palin, Michael R. Milward, Paul R. Cooper, Sarah A. Kuehne, Owen Addison, Paco Fernandez‐Trillo   +9 more
wiley   +1 more source

Las reformas del permiso de conducción puestas en marcha en Europa y las investigaciones internacionales en este campo: cómo formar al conductor y a la conductora, cómo educar al hombre y a la mujer

Educar, 2010
En este trabajo se presentan algunos resultados de investigaciones europeas recientes en materia de seguridad vial, teniendo en cuenta dos ejes clave: — La formación del conductor: se mostrará como las nuevas conceptualizaciones sobre el comportamiento ...
Jean-Pascal Assailly
doaj   +1 more source

Single‐Breathhold 3D MR Elastography in the Liver, With Simultaneous R2* and PDFF Mapping

Magnetic Resonance in Medicine, Volume 96, Issue 2, Page 682-697, August 2026.
Purpose To develop a sequence for the rapid acquisition of MR elastography (MRE) parameters in 3D, with simultaneous measurement of proton‐density fat fraction (PDFF) and R2* for multiparametric assessment of liver disease. Methods The proposed sequence uses an interleaved motion‐encoding scheme to acquire 3D volumes of all motion encodings and wave ...
Donovan P. Tripp, Anne‐Sophie van Schelt, Omar Darwish, Karl P. Kunze, Shamsa Al Harthy, Nader S. Metwalli, Ahmed M. Gharib, Claudia Prieto, René M. Botnar, Ralph Sinkus, Radhouene Neji   +10 more
wiley   +1 more source