Results 31 to 40 of about 184 (129)

Catatumbo, frontera, paramilitarismo y disputa geopolítica en el norte de Suramérica

Revista Kavilando
Se analiza la guerra en el Catatumbo como un fenómeno estructural inscrito en una estrategia geopolítica regional que desborda las lecturas centradas en la criminalidad o la debilidad estatal. Desde un enfoque crítico y decolonial, sostiene que el avance
Alfonso Insuasty Rodríguez, Freddy Díaz-García, Yani Vallejo Duque   +2 more
doaj   +1 more source

Cardiovascular involvement and manifestations of systemic Chikungunya virus infection: A systematic review [version 2; referees: 1 approved, 2 approved with reservations]

F1000Research, 2017
Background: In the last three years, chikungunya virus disease has been spreading, affecting particularly the Americas, producing more than two million cases.
María Fernanda Alvarez, Adrián Bolívar-Mejía, Alfonso J. Rodriguez-Morales, Eduardo Ramirez-Vallejo   +3 more
doaj   +1 more source

Sildenafil prevents right ventricular hypertrophy and improves heart rate variability in rats with pulmonary hypertension secondary to experimental diabetes

Clinical and Experimental Hypertension, 2022
Chronic treatment with sildenafil (SILD) is an effective protector on the development of cardiovascular complications of pulmonary hypertension (PH) and diabetes.
Miguel Angel Garcia-Gonzalez, Veronica Vallejo-Ruiz, Fausto Atonal-Flores, Jorge Flores-Hernandez, Oswaldo Torres-Ramírez, Alfonso Diaz-Fonsecae, Francisco Perez Vizcaino, Jose Gustavo Lopez-Lopez   +7 more
doaj   +1 more source

Hybridity of mainly asexually propagating duckweeds in genus Lemna – dead end or breakthrough?

New Phytologist, Volume 250, Issue 1, Page 629-647, April 2026.
Summary The cosmopolitan, mainly vegetatively propagating, organ‐reduced monocotyledonous aquatic duckweeds are the smallest and fastest growing angiosperms, distributed world‐wide and flower rarely in nature. Recently, we reported intra‐ and interspecific hybrids and ploidy variants in the genus Lemna.
Yuri Lee, Luca Braglia, Anton Stepanenko, Jörg Fuchs, Veit Schubert, Silvia Gianì, Leone Ermes Romano, Giovanna Aronne, Chiara Forti, Ingo Schubert, Laura Morello   +10 more
wiley   +1 more source

Między postmodernizmem a klasycyzmem, czyli o fuzji młodości I starości w teorii kultury. Rewizja kanonu w sztuce "Hӧlderlin" Alfonsa Vallejo w świetle teorii lęku przed wpływem

, 2020
In one of his plays entitled Hölderlin Alfonso Vallejo establishes direct and indirectconnections with life and poetry of romantic poet Friedrich Hölderlin.
Szejko, Natalia
core   +3 more sources

¿Independencia?

Revista Kavilando, 2009
La noticia de la instalación en Colombia, de la base militar de Manta, ha generado toda una controversia nacional, pues se piensa trasladar dicha base pero transformando su operatividad por todo el territorio nacional. Este artículo pretende comparar las
Yani Vallejo Duque, Alfonso Insuasty Rodríguez   +1 more
doaj  

Cardiovascular involvement and manifestations of systemic Chikungunya virus infection: A systematic review [version 1; referees: 1 approved, 2 approved with reservations]

F1000Research, 2017
Background: In the last three years, chikungunya virus disease has been spreading, affecting particularly the Americas, producing more than two million cases.
María Fernanda Alvarez, Adrián Bolívar-Mejía, Alfonso J. Rodriguez-Morales, Eduardo Ramirez-Vallejo   +3 more
doaj   +1 more source

Differences between leukemic arthritis and juvenile idiopathic arthritis

Pediatric Rheumatology Online Journal, 2023
Objectives To determine the clinical and laboratory differences between leukemic arthritis (LA) and juvenile idiopathic arthritis (JIA) at the onset of the disease.
Alfonso Ragnar Torres Jimenez, Eunice Solis Vallejo, Adriana Ivonne Cespedes Cruz, Julia Veronica Ramirez Miramontes, Guadalupe del Consuelo Cortina Olvera, Alejandra Velazquez Cruz, Berenice Sanchez Jara   +6 more
doaj   +1 more source

El Contrato Social toca fondo ¿Qué sigue?

Revista Kavilando, 2023
Centro y Sur América, allí Colombia, tienen una condición especial en un escenario de crisis global, la primera es que posee los recursos naturales que requiere el mundo para paliar la crisis y la segunda, es que intenta consolidarse una nueva ola ...
Alfonso Insuasty Rodríguez, Eulalia Borja Bedoya, Yani Vallejo Duque, Luis Alfredo Burbano Narváez, Santiago Salinas Miranda, Brenda Milena Perdomo Rodríguez, David Felipe Céspedes Rodríguez, Mateo Córdoba, Freddy Díaz, Cristóbal Silva González, Héctor Bello   +10 more
doaj   +1 more source

From Light‐Driven to Dark Synthesis: Streamlining Perfluoroalkyl Selenide Ether Formation

European Journal of Organic Chemistry, Volume 29, Issue 5, 7 February 2026.
Two orthogonal and user‐friendly protocols enable the efficient construction of (Se/S)RF bonds from simple dichalcogenides and perfluoroalkyl iodides. Visible‐light irradiation at 395 nm promotes seleno‐ and thioether formation, while a dark KOH/MeCN variant delivers selenoethers in minutes. Both approaches operate under mild, metal‐ and photocatalyst‐
Loydel Torres Barroso, Romina S. Conde, Damian E. Yerien, Agustin A. Zottola, Al Postigo, Sebastian Barata‐Vallejo   +5 more
wiley   +1 more source