Results 51 to 60 of about 99,905 (154)
Assessing limits of sustainable seed harvest in wild plant populations
Conservation Biology, Volume 39, Issue 5, October 2025.Abstract Seed harvesting from wild plant populations is key for ecological restoration, but it may threaten the persistence of the source populations. Consequently, several countries have set guidelines limiting the proportions of harvestable seeds. However, these guidelines are inconsistent and lack a solid empirical basis.
Anna Bucharova +3 more
wiley +1 more source
El molibdeno, un elemento tan versátil como vital
Revista de Química, 2019 El molibdeno es un elemento descubierto en el siglo XVIII que, en el Perú, se obtiene asociado a la minería del cobre. Se usa en aleaciones de acero así como en pigmentos y tiene un relevante rol en la vida pues está presente en enzimas importantes.
Juan M. Gutiérrez-Zorrilla
doaj
Interactions of rare earth elements with living organisms and emerging biotechnical applications
PLANTS, PEOPLE, PLANET, Volume 7, Issue 5, Page 1251-1274, September 2025.Rare earth elements (REEs) are critical resources required to achieve net‐zero carbon emission targets and energy security. However, rising demand for REEs coupled with significant extraction and processing challenges and geopolitical risks restricts access to REE resources.
Samantha A. McGaughey +6 more
wiley +1 more source
International consensus principles for the sustainable harvest of polar bears
Conservation Biology, Volume 39, Issue 4, August 2025.Abstract Multilateral agreements are required for the effective management of large carnivores with ranges that cross geopolitical boundaries. This is particularly important for species subject to rapid changes in distribution or demographic status due to climate warming. We considered 3 international consensus principles for the sustainable harvest of
Eric V. Regehr +7 more
wiley +1 more source
, 2017 Método para extraer el aguijon de las rayas para su manejoConocimiento tradicionalVichadaRío daguaPuerto ...
Novoa Serna, María del Rosario
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Optimización del proceso de extracción de oleorresinas de Capsicum frutescens L. aplicando la tecnología de fluidos supercríticos y extracción asistida por ultrasonido. [PDF]
, 2017 Se optimizó el proceso de extracción de oleorresina de Capsicum frutescens L. aplicando la tecnología de fluidos supercríticos (SFE) y extracción asistida por ultrasonido (UAE). Se evaluó el efecto de la temperatura (35,9°C - 64,1°C) y presión (219,3 bar
López Narvaez, Jimmy Alexander
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A computational framework to characterize and compare the tonal repertoires of toothed whales
Methods in Ecology and Evolution, Volume 16, Issue 7, Page 1350-1368, July 2025.Abstract Toothed whales, despite being one of the most acoustically specialized lineages of vertebrates, lack detailed vocal repertoire characterizations comparable to those of songbirds and primates. Current descriptions often lack standardization, limiting interspecies and intraspecies comparisons critical for understanding the contribution of ...
Maia Austin +7 more
wiley +1 more source
Acta AgronómicaLos cultivos de chile (Capsicum sp.) tienen una relevancia económica significativa a nivel global, pero también generan una gran cantidad de subproductos a lo largo de la cadena de producción, muchos de los cuales no se utilizan y representan un desafío
Alfredo Varela-Esquer +5 more
doaj +1 more source
Revista Centro Azúcar, 2022 Introducción: La caña de azúcar es una fuente alternativa de energía con grandes posibilidades de producción de derivados, por lo que es necesario acelerar el desarrollo diversificado de esta industria.
Laura Elena Águila Consuegra +2 more
doaj
Entrepreneurship Spillover and the determinants of Key Sectors for new business creation: An inter-sectorial approach [PDF]
Whereas the knowledge spillover theory of entrepreneurship focuses on the diffusion of innovative output and knowledge filter among new firms and industries (Acts, et al., 2005; Audrescht, 2007), it has not been studied the phenomenon of entrepreneurship
Massón-Guerra, José Luis +1 more
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