Results 31 to 40 of about 7,061 (111)

Educación, ciencia y tecnología la oportunidad del desarrollo seguro logístico de la Fuerza Aérea

Ciencia y Poder Aéreo, 2006
La oportunidad del desarrollo en ciencia y tecnología en la Fuerza Aérea está intrínsicamente ligada al desarrollo de la educación, como lo demuestra el estudio "Colombia, al filo de la oportunidad", el resultado de 10 meses de investigaciones y estudio ...
Marcos Manuel Guzmán
doaj   +1 more source

Investigación-acción-participativa: alternativa metodológica para el estudio de las comunidades. La visión de Orlando Fals Borda

Revista Scientific, 2021
La influencia del positivismo en el estudio de las ciencias sociales logró la rigidez de la aplicación de método en cuanto al estudio de las comunidades.
Luis Alberto Velásquez, Sandra Yorkley Alvarado Mendoza, Virginia del Valle Barroeta Hidalgo   +2 more
doaj   +1 more source

Highly Versatile Hydrogenative Functionalizations of Phthalimides Catalyzed by an Ag‐Alumina Zeolite Nanocomposite: One‐Pot Synthesis of 3‐Substituted Isoindolinones

Advanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.
Heterogeneous‐catalyzed selective and versatile hydrogenative functionalizations of phthalimides have been developed for the first time. By using a solid nanocomposite formed by [Ag/Al2O3] material in combination with [H‐BETA] zeolite as cocatalyst, a broad range of 3‐functionalized isoindolinones have been accesed in one‐pot from phthalimides, H2 and ...
Carles Lluna‐Galán, Rosa Adam, Jose R. Cabrero‐Antonino   +2 more
wiley   +1 more source

Structure‐Guided Design of an Interface‐Derived Inhibitor Peptide Against Spodoptera frugiperda Digestive Trypsins

Archives of Insect Biochemistry and Physiology, Volume 122, Issue 1, May 2026.
In this study, a rational in silico strategy was employed to design a bioinsecticidal peptide targeting the digestive trypsins of Spodoptera frugiperda, utilizing the Dioscorin–trypsin interface as a structural template. By identifying critical interface hot‐spot residues, an 11‐residue oligopeptide designated as PEP‐11 was engineered, demonstrating ...
José Severiche‐Castro, Maria Fernanda Valerio, Maria Goreti de Almeida Oliveira   +2 more
wiley   +1 more source

La Inteligencia Artificial en el CIETyC 2024: Un Faro de Innovación Transformadora

Ciencia e Ingeniería
El Congreso Internacional de Ciencia, Educación y Tecnología 2024 (CIETyC 2024), celebrado en Armenia, Quindío, Colombia, del 22 al 24 de mayo, ha marcado un hito en la búsqueda de soluciones innovadoras para los desafíos del siglo XXI.
Iris Jiménez Pitre
doaj   +1 more source

Colonization and extinction mediate environmental effects on the phylogenetic diversity of invertebrate communities

Ecology, Volume 107, Issue 5, May 2026.
Abstract Phylogeny offers a powerful framework for understanding mechanisms driving community assembly. Yet, most empirical studies in community phylogenetics rely on observational approaches. In this study, we explore how two important drivers of community assembly—habitat size and predator presence—shape species richness and phylogenetic relatedness ...
Nadia B. Páez‐Rosales, Jessica L. Ware, Diane S. Srivastava   +2 more
wiley   +1 more source

4D Printable Formulations of Mixed Low and High Molecular Weight Liquid Crystalline Units: A Versatile Route to Functional Soft Actuators

Macromolecular Rapid Communications, Volume 47, Issue 9, 5 May 2026.
This work presents a practical approach for formulating 4D printable inks that incorporates substantial fractions of low molecular weight mesogens. By blending low molecular weight diacrylate or monoacrylate constituents with a high molecular weight main‐chain macromer, the resulting mixture proves suitable for direct ink writing, enabling mechanical ...
Lorena Ceamanos, María López‐Valdeolivas, Pengrong Lyu, Danqing Liu, Dirk J. Broer, Carlos Sánchez‐Somolinos   +5 more
wiley   +1 more source

The Role of Moisture Transport Deficits in Modulating Drought and Fire Patterns in the Upper Paraguay River Basin, Brazil

Meteorological Applications, Volume 33, Issue 3, May/June 2026.
The Upper Paraguay River Basin faced intense droughts in 1999, 2007, and 2010, coinciding with extensive wildfires. In 2007, a severe drought episode affected 97.5% of its area. These extreme years were characterized by pronounced negative anomalies and shifts in atmospheric moisture contributions from key source regions, during dry season. ABSTRACT In
Liz Barreto Coelho Belém, Raquel Nieto, Leonardo F. Peres, Nilson Oliveira da Silva, Milica Stojanovic, Marta Vázquez, Ronaldo Albuquerque, Allan Arantes Pereira, Carlos C. DaCamara, Luis Gimeno, Ana M. B. Nunes, Letícia Couto Garcia, Geraldo Alves Damasceno Junior, Fabio de Oliveira Roque, Renata Libonati   +14 more
wiley   +1 more source

La educación en tecnología: hacia una visión humanista en su desarrollo curricular

Revista Iberoamericana de Educación, 2006
En este trabajo se explora la posibilidad de desarrollar una educación tecnológica desde una perspectiva humanista, como ética para una educación en tecnología general, independientemente de cual sea el enfoque curricular que se utilice.
Marcos Martínez Traverso
doaj  

Beech decline reshapes fine root traits, microbial composition and soil carbon–nutrient cycling

Journal of Ecology, Volume 114, Issue 5, May 2026.
This study highlights the critical role of rhizosphere interactions in nutrient cycling and tree health. It was found that tree decline triggers cascading effects that influence fine root, microbial communities and soil enzyme activities in the rhizosphere.
Marta Pastor‐García, Juan Piñeiro, Clara Martínez‐Arias, Gonzalo Monteoliva‐García, Raúl Ochoa‐Hueso, Juan Antonio Martín, Rosana López   +6 more
wiley   +1 more source