Results 41 to 50 of about 185,759 (163)
Cementación de oro con polvo de cinc en soluciones de lixiviación con amoniaco-tiosulfato
Revista de Metalurgia, 2005 Se estudió la cementación de oro con polvo de cinc desde soluciones con tiosulfato y amoniaco, evaluando la influencia de las siguientes variables: concentración de tiosulfato, concentración de amoniaco, pH, concentración de cobre y concentración de cinc.
R Navarro +3 more
doaj +1 more source
Unraveling the Phenology of the Liana Marcgravia longifolia: Temporal Patterns and Climatic Cues
Biotropica, Volume 58, Issue 2, March 2026.We monitored the reproductive phenology of the Amazonian liana Marcgravia longifolia J. F. Macbr (Marcgraviaceae) for 84 consecutive months in the Peruvian Amazon to quantify the timing, synchrony, and seasonality of flowering and ripe fruiting. Flower presence peaked in August with intermediate synchrony, while ripe fruit presence peaked in November ...
Alessandro Mainardi +5 more
wiley +1 more source
How does precipitation pattern affect annual tree growth? A multi-year data analysis a case study of semi-arid Yatir Forest, Israel [PDF]
, 2019 Las sequías recurrentes son una amenaza para los recursos forestales a nivel mundial. Particularmente en las regiones áridas y semiáridas, el pronóstico del cambio climático predice una disminución en la precipitación anual (P) y un aumento en la ...
Haile, Shebeshe Assefa
core +1 more source
Semiárida, 2022 La producción agropecuaria requiere del manejo de un conjunto de sistemas físicos, biológicos y económicos. La incertidumbre asociada a estos sistemas contribuye a la complejidad en el proceso de la toma de decisiones e incide en la eficiencia del ...
Mariano Méndez +2 more
doaj
Tracer Hydrology Practices, Challenges, and Opportunities Across Latin America and the Caribbean
Hydrological Processes, Volume 40, Issue 1, January 2026.Tracer monitoring characteristics across the LAC region: overview of sampled hydrologic systems, commonly used tracers, routine and event‐based sampling strategies, integration with hydrometric measurements, and monitoring durations. ABSTRACT Tracer hydrology in Latin America and the Caribbean has made significant progress in recent decades, largely ...
Ricardo Sánchez‐Murillo +47 more
wiley +1 more source
Grazing and climate interact to regulate greening trends in Mediterranean grasslands
Journal of Applied Ecology, Volume 63, Issue 1, January 2026.Our results show that traditional grazing systems can maintain grassland stability without causing degradation, but they can also increase the ecosystem's vulnerability to climate change. We provide clear evidence that GPS‐based livestock monitoring is a powerful and scalable tool for sustainable rangeland management.
Marina Rincon‐Madroñero +3 more
wiley +1 more source
OBTENCIÓN DE ANTICUERPOS POLICLONALES IgY ANTIPARVOVIRUS CANINO A PARTIR DE YEMA DE HUEVO DE GALLINA
Universitas Scientiarum, 2005 Inmunizando un grupo de diez gallinas de postura raza Lohmann de 16 semanas de edad con parvovirus canino (CPV) cepa vacunal, se obtuvieron anticuerpos IgY policlonales contra CPV en yema de huevo.En la extracción de los anticuerpos de la yema se ...
Pinto, J. +6 more
doaj
Journal of Ecology, Volume 114, Issue 1, January 2026.We hypothesized that litter decomposition (H1) and litter quality (H2) increase with increasing soil humidity, therefore litter from the wetter sites to have the highest litter quality and decompose fastest in each site, and fastest on the wet end of the gradient (H3).
Liesbeth van den Brink +6 more
wiley +1 more source
El balance hídrico en el suelo de 4 pinares (Pinus halepensis) de repoblación de la provincia de Alicante [PDF]
, 2015 El agua es un recurso limitado en las zonas semiáridas, que afecta a los servicios a la población y a la estabilidad de los ecosistemas, especialmente en la cuenca Mediterránea dada la escasez hídrica que se prevé según el IPCC.
Andarcio, Carlos +5 more
core +1 more source
Calcium silicates synthesised from industrial residues with the ability for CO2 sequestration [PDF]
, 2014 This work explored several synthesis routes to obtain calcium silicates from different calcium-rich and silica-rich industrial residues. Larnite, wollastonite and calcium silicate chloride were successfully synthesised with moderate heat treatments below
Esquivias Fedriani, Luis María +4 more
core +1 more source