Results 81 to 90 of about 197,626 (200)
Physiologia Plantarum, Volume 177, Issue 3, May/June 2025.Abstract Different phytohormones can act as root‐to‐shoot signalling molecules in response to soil drying. Recent findings suggest that root ABA levels are predominantly leaf‐sourced and not locally synthesized, thus, ABA exported from the roots in the xylem is mostly recycled from the shoot.
Jaime Puértolas +3 more
wiley +1 more source
Uso de explosivos en la agricultura: una alternativa en el caso de suelos compactados
Agronomía Colombiana, 1991 La compactación del suelo afecta el medio físico del mismo, lo cual determina cambios en su comportamiento disminuyendo<br />su productividad. La compactación, originada por Causas antrópicas y/o geoquímicas reduce la permeabilidad del suelo a ...
Mesa López Luis Jorge +1 more
doaj
Influence of the Surface Viscosity on the Breakup of a Surfactant-Laden Drop [PDF]
, 2017 We examine both theoretically and experimentally the breakup of a pendant drop loaded with an insoluble surfactant. The experiments show that a significant amount of surfactant is trapped in the resulting satellite droplet.
Herrada Gutiérrez, Miguel Ángel +4 more
core +1 more source
, 2020 El objetivo general del laboratorio es realizar prácticas experimentales de la asignatura de mecánica de fluidos, con el fin de que el estudiante afiance los conocimientos teóricos de la asignatura.
Julio Rada, Félix +2 more
openaire +1 more source
Manipulation of Cancer Cell Spheroids by Photovoltaic Tweezers: Determination of Their Charge State
Advanced Photonics Research, Volume 6, Issue 4, April 2025.Droplets containing spheroids of two cancer cell lines, MCF‐7 and U‐87‐MG, have been successfully manipulated by light‐induced electrical fields generated by photovoltaic tweezers. From the droplet dynamics, the charge state of the cell culture medium and the spheroids are obtained resulting in positively and negatively charged, respectively. Moreover,
Esther Rincón +6 more
wiley +1 more source
O jazigo da Facuca revisitado [PDF]
, 2003 O jazigo de chumbo da Facuca está localizado a SE de Vila Cova (Serra do Marão). A área é caracterizada pela ocorrência de rochas metassedimentares da Zona Centro Ibérica e por granitos hercínicos. O filão é quartzoso tem uma direcção N130°E e mergulha
Dória, Armanda +2 more
core
Towards a global understanding of tree mortality
New Phytologist, Volume 245, Issue 6, Page 2377-2392, March 2025.Summary Rates of tree mortality are increasing globally, with implications for forests and climate. Yet, how and why these trends vary globally remain unknown. Developing a comprehensive assessment of global tree mortality will require systematically integrating data from ground‐based long‐term forest monitoring with large‐scale remote sensing.
International Tree Mortality Network +114 more
wiley +1 more source
Radioterapia y el papel del sistema inmunitario
Nova Scientia, 2014 Se simuló computacionalmente un gran número de pacientes bajo tratamiento de radioterapia, mediante un sistema dinámico. De los resultados, se halló un método para cambiar el número de sesiones de radiación manteniendo óptimo el tratamiento.
Oscar Sotolongo Grau +4 more
doaj +1 more source
Extracción con Fluidos Supercríticos:Aplicaciones de Interés Farmacéutico [PDF]
, 2018 Dentro del proceso de análisis de muestras, existen muchas técnicas yprocedimientos por las que se hacen pasar la muestra antes de realizar la determinación del analito. Las técnicas de separación son
Reyes Vargas, José
core
Exergy Optimization of a Moving Bed Heat Exchanger [PDF]
, 2007 The MBHE proposed can be analyzed as a crossflow heat exchanger where one of the phases is a moving granular medium. In the present work the exergy analysis of the MBHE is carried out over operation data of the exchanger obtained in two ways: a numerical
Almendros Ibáñez, José Antonio +6 more
core +6 more sources