a degradación y transformación de los ecosistemas. Hasta hace poco, la disponibilidad de mapas de alta resolución para mostrar los patrones de biodiversidad era limitada. Sin embargo, ahora existen los desarrollos conceptuales, ...

Background: Venezuela has experienced soaring rates of violent crime, in particular, homicides. The Aragua state with 142 to 168 crimes per 100,000 inhabitants has the highest homicide rate in the last 5 years. All these ...

To disentangle the influence of environmental factors at different spatial grains (regional and local) on fern and lycophyte species richness and ask how regional and plot-level richness are related to each other. Location: ...

Hexagonal mesoporous MCM-41-type molecular sieve has been functionalized with (3-mercaptopropyl)trimethoxysilane and used to heterogenize two large Co(II)- and Cu(II)-complexes containing a terpyridine-based Schiff base ...

The triterpenes are structurally diverse group of specialized metabolites with important roles in plant defense and human health. Glycyrrhizin, with a carboxyl group at C-30 of its aglycone moiety, is a valuable triterpene ...

Pentacyclic triterpenes may be active agentsand provide a rich natural resource of promising compoundsfor drug development. The inhibitory activities of 29 naturaloleanane and ursane pentacyclic triterpenes were evaluatedagainst ...

The taxonomic identification of fly species through wing geometry is a helpful tool for entomologists and officials involved in forensic research, who not necessarily require expertise on insect taxonomy. Members of the ...

La Universidad Regional Amazónica Ikiam inició sus actividades en octubre de 2014 como una universidad pública orientada al estudio e investigación en Ciencias de la Vida y de la Tierra. Ese mismo año se creó la ...

Higher levels of taxonomic and evolutionary diversity are expected to maximize ecosystem function, yet their relative importance in driving variation in ecosystem function at large scales in diverse forests is unknown. ...

This study presents a comparative techno-economic feasibility analysis for two polygeneration plant solutions, applied to low-income dairy farms in Bolivia. The first option considers an internally fired microturbine (IFMT) ...