Results 41 to 50 of about 123,559 (212)

Contrasting Maternal, Paternal, and Biparental Ancestry of Populations From the Caribbean Coast of Colombia

American Journal of Biological Anthropology, Volume 189, Issue 4, April 2026.
ABSTRACT Objectives The current Caribbean Colombian population is the result of migration processes and admixture that occurred throughout the country's history. The aim of this study was to investigate genetic ancestry gradients throughout the Caribbean territory, with a higher Native American ancestry expected in inland areas compared to coastal ...
Masinda Nguidi, Christina Amory, Catarina Xavier, Gabriela Huber, Filipa Simão, Beatriz Martinez, Luis Caraballo, Leonor Gusmão, Walther Parson   +8 more
wiley   +1 more source

A geography of illicit crops (coca leaf) and armed conflict in Colombia [PDF]

, 2004
Colombia is currently the world’s largest producer of coca leaf and the principal producer of opium poppies in the Americas; the plants are the basic raw materials used to produce cocaine and heroin.
Díaz, Ana María, Sánchez, Fabio
core  

Composição da matéria orgânica em solos de seis zonas pedoclimáticas de Magdalena (Colômbia) [PDF]

, 2016
[ES] Los suelos al noreste del departamento del Magdalena (Colombia) afrontan una creciente degradación, principalmente por las bajas tasas de acumulación de materia orgánica del suelo (MOS) y su reducido período de transformación.
Kaal, Joeri, Schellekens, Judith, Vásquez Polo, José Rafael   +2 more
core   +1 more source

Multifaceted roles of BBX transcription factors: impacts on key agronomical traits and environmental resilience

New Phytologist, Volume 250, Issue 2, Page 762-787, April 2026.
Summary B‐box (BBX) proteins were initially characterized as transcription factors connecting light signaling to the regulation of flowering time and seedling photomorphogenesis. However, over the last decade, increasing evidence has shown that they integrate light and hormone signaling, modulating multiple physiological processes during plant life. In
Bruno Silvestre Lira, Juliene Moreira, Luciano Freschi, Magdalena Rossi   +3 more
wiley   +1 more source

ORMDL Proteins Turnover via Proteasome and Autophagy Is Cell‐Type Dependent and Tied to Ceramide Homeostasis

The FASEB Journal, Volume 40, Issue 6, 31 March 2026.
ORMDL proteins in the endoplasmic reticulum (ER) negatively regulate serine palmitoyltransferase (SPT) activity in response to the rate of de novo sphingolipid synthesis. Disruption of ceramide homeostasis by myriocin or fumonisin B1 (FB1) appears to destabilize the ORMDL‐SPT complex, leading to ORMDL degradation as a feedback mechanism.
Michal Mrkacek, Magda Tumova, Alex Puskasu, Pavol Utekal, Marek Vrbacky, Ladislav Kuchar, Petr Draber, Viktor Bugajev   +7 more
wiley   +1 more source

INICIATIVAS PARA EL CAMBIO

Lámpsakos, 2013
El planeta no atraviesa por su mejor momento en materia de conservación y renovación de sus recursos naturales. Claramente en los últimos tiempos los recursos hídricos han venido haciéndose cada vez menores; el hombre ha notado con preocupación y vivido ...
César Alfonso Defrancisco-Larrañaga, Christian Camilo Ortiz-López   +1 more
doaj  

Resilient Calvarial Bone Marrow Supports Retinal Repair in Type 2 Diabetes

Advanced Science, Volume 13, Issue 13, 3 March 2026.
Skull bone (calvarium) marrow in diabetic mice stay structurally intact and keeps making blood cells, unlike the bone marrow of the leg bones. The skull marrow is exposed to cerebrospinal fluid (CSF), which contains protective molecules called oxysterols.
Bright Asare‐Bediako, Sergio Li Calzi, Julia G. Behnsen, Ram Prasad, Magdalena Blaszkiewicz, Yvonne Adu‐Rutledge, Robert F. Rosencrans, Jason L. Floyd, Ashley Rennhack, Denise Stanford, Anna Lin, Todd A. Lydic, Carl M. Sheridan, Michael E. Boulton, Kristy L. Townsend, Julia V. Busik, Maria B. Grant   +16 more
wiley   +1 more source

Electrified rhythms: How hydropower infrastructure transforms hydrosocial relations of riverine communities in the Lower Sogamoso River, Colombia

People and Nature, Volume 8, Issue 3, Page 782-796, March 2026.
Abstract Hydropower dams regulate water flows for millions of downstream inhabitants worldwide, altering water availability. Under a changing climate, flow control is often framed technically and politically as being essential for reducing drought and flood risks. However, it can also disrupt ecological flows, impact livelihoods and erode environmental
Laura Betancur‐Alarcón, Laura Pulgarín‐Morales, Camila Jiménez‐Saénz, Rossella Alba, Tobias Krueger   +4 more
wiley   +1 more source

Terminal intermodal de transporte en Alto Magdalena

, 2013
A partir de un estudio basado en el inventario, análisis y conclusiones provenidas del sistema natural, sistema de equipamientos y el sistema vial como elementos estructurantes, se formula una propuesta para Girardot que pretende mejorar su infraestructura para que esta llegue a posicionarse como una ciudad turísticamente competitiva.
openaire   +1 more source

Diagnóstico de la capacidad reproductiva de toros en ganaderías de tres municipios del alto Magdalena

Revista MVZ Córdoba, 2005
El objetivo del estudio fue evaluar la funcionalidad reproductiva de toros del alto magdalena analizando el efecto de la edad y la raza sobre la calidad del semen y otras características reproductivas. La investigación se realizó en los municipios de Paicol, La Plata y Nátaga (Huila - Colombia), cubriendo zonas de bosque seco tropical (bs-T) y bosque ...
Vejarano, OA, Sanabria L, RD, Trujillo L, GA.   +2 more
openaire   +5 more sources