Results 51 to 60 of about 6,183 (188)

Thinking of Melastomataceae: Revisiting Humboldt and Bonpland's Monographie des Melastomacées (1806–1823) from a historical perspective

open access: yesTAXON, Volume 75, Issue 3, June 2026.
Abstract During their voyage to the Americas (1799–1804), Alexander von Humboldt and Aimé Bonpland described and collected American flora, fauna, minerals and other objects. After returning to Europe, they published several works, including Monographie des Melastomacées, initiated by Bonpland to classify this complex botanical family.
Marina Ramos de Azevedo   +1 more
wiley   +1 more source

DINÁMICA SEROLÓGICA DEL VIRUS DE BRONQUITIS INFECCIOSA EN UNA GRANJA DE POLLO DE ENGORDE DEL DEPARTAMENTO DE CUNDINAMARCA

open access: yesRevista de la Facultad de Medicina Veterinaria y de Zootecnia, 2009
El virus de bronquitis infecciosa (IBV) causa una enfermedad altamente contagiosa, distribuida mundialmente, que conlleva graves pérdidas económicas. En algunas oportunidades se asocia con otras entidades como los virus de las enfermedades de Gumboro y ...
DC Álvarez, JA Usma, J Jaime, VJ Vera
doaj  

Techno‐Economic and Environmental Assessment of Magnesium‐Impregnated Rice Husk Biochar for Nutrient Removal: A Scale‐Up and Prospective Soil Application Approach

open access: yesWater Environment Research, Volume 98, Issue 6, June 2026.
A sequential system using magnesium‐impregnated rice husk biochar was evaluated through techno‐economic and life‐cycle assessment. The biochar first removes nitrate and phosphate from water and is then reused as a soil amendment, though high magnesium chloride costs constrain feasibility, highlighting the need for process optimization for large‐scale ...
José Lugo‐Arias   +5 more
wiley   +1 more source

Sistema de riego automatizado para un cultivo de pequeña superficie

open access: yesRevista Tecnológica
Los cultivos de pequeña superficie representan una tendencia emergente que busca no solo crear conciencia sobre la autosostenibilidad, sino también promover prácticas agrícolas responsables, reducir la huella ecológica y fomentar el consumo de alimentos
Jairo Eduardo Márquez Díaz   +3 more
doaj   +1 more source

Sustainable Livestock Decisions in a Post‐Conflict Frontier: Evidence From Colombia's Orinoquía

open access: yesJournal of Agricultural Economics, Volume 77, Issue 2, Page 304-319, June 2026.
ABSTRACT The Orinoquía region is one of Colombia's principal agricultural frontiers and has been shaped by long‐standing armed‐conflict dynamics that continue to influence land governance, producer incentives, and investment decisions. Efforts to promote sustainable cattle production emphasize two key practices: sustainable pasture management ...
Hernando Flórez‐Díaz   +4 more
wiley   +1 more source

Lightning Occurrence between 2016 and 2020 in Fusagasugá, Cundinamarca, Colombia

open access: yesIngeniería
Context: Lightning is a powerful natural phenomenon that poses a risk to life and infrastructure, given the enormous amounts of energy it can transfer in short periods of time, especially in cloud-to-ground strikes.
Fernando Díaz-Ortiz   +3 more
doaj   +1 more source

Colegio técnico - Guasca, Cundinamarca

open access: yes, 2012
Este equipamiento busca contener espacios capaces de otorgar capacitación y conocimientos en el área agropecuaria, de esta manera disminuir el alto porcentaje de jóvenes que se están quedando solo con su formación básica para enfrentar siglo XXI, darles la posibilidad de tener un oficio técnico que les permita una economía adecuada para conseguir una ...
openaire   +1 more source

When “Rescue” Means Exile: The Urgency of Science‐Based Protocols for Large Carnivore Interactions and Coexistence in the Neotropics

open access: yesAnimal Conservation, Volume 29, Issue 3, Page 233-234, June 2026.
Using the recent case of an Andean jaguar translocated hundreds of kilometers to a distinct savanna ecosystem in Colombia, we critique the prevalent “Reactive Removal” model often framed misleadingly as “rescue.” We contrast this approach, which disregards local adaptation, creates ecosystem mismatches, and blocks natural range recovery, with a needed “
José F. González‐Maya   +3 more
wiley   +1 more source

Morfología urbana de Madrid, Cundinamarca

open access: yesPerspectiva Geográfica, 2012
Este artículo presenta el estudio del proceso de urbanización de Madrid (Cundinamarca), desde la perspectiva que aporta la morfología urbana. Para ello se investigaron las variables emplazamiento, situación y plano, las cuales fueron operativizadas cualitativa y cuantitativamente, a fin de generar indicadores que permitieran establecer el estado actual
openaire   +5 more sources

Exploring Andean foothill connectivity: insights from population divergence in the white‐tipped sicklebill, Eutoxeres aquila

open access: yesJournal of Avian Biology, Volume 2026, Issue 3, May 2026.
The Northern Andes, acting both as barrier and corridor, exert strong influence in Neotropical biodiversity. Still, the diversification of foothill taxa inhabiting ecotonal zones between lowland rainforest and montane environments in this region remains poorly understood.
Laura Rosado‐ Llerena   +6 more
wiley   +1 more source

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