Results 41 to 50 of about 466,981 (170)
Proceso de extraccion supercritica del aceite esencial de pimienta de jamaica (pimenta dioica l merrill) [PDF]
, 2017 Proceso de extracción de aceite esencial de pimienta utilizando la tecnología de fluidos supercríticos.En la extracción de compuestos a partir de fuentes naturales, la tecnología de los fluidos supercríticos ha mostrado ventajas importantes sobre los ...
Andrade Ávila, Yasvet Yaren +1 more
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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
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
Caracterización química y cuantificación del rendimiento de extracción de pigmento en siete accesiones mexicanas de Bixa orellana [PDF]
, 2016 Achiote (Bixa orellana) is a plant used for obtaining a natural dye rich on carotenoids (mainly bixin and norbixin); it is also the plant species with the highest content of tocotrienols in nature.
Asis, Ramón +7 more
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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
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
Mejora de la extracción proteica de la harina de girasol mediante hidrólisis con alcalasa [PDF]
, 2003 Extraction of proteins from defatted sunflower meal has been improved by addition of the protease alcalase during alkaline extraction. This method offers several additional advantages as compared to the traditional alkaline extraction without alcalase ...
Alaíz Barragán, Manuel +6 more
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Abandoned mine land program: Examining public participation in decision‐making
Review of Policy Research, Volume 42, Issue 3, Page 629-657, May 2025.Abstract For centuries, coal extraction and production provided low‐cost energy that powered the American economy. Currently, an estimated 5.5 million people in the Appalachian region live within one mile of an Abandoned Mine Land (AML) site. The site remediation has been funded and promoted by the AML program under the Surface Mining Control and ...
Karsyn Kendrick, Younsung Kim
wiley +1 more source
Thēmis, 2019 La forma en como está estructurado el régimen de la propiedad privada muchas veces delimita la manera en que está organizada una sociedad. En el aspecto minero, la propiedad de los recursos naturales es generalmente la razón principal del buen ...
Milagros Mutsios Ramsay
doaj
Revista Colombiana de Química, 2014 En este trabajo se desarrolló y validó un método simple, amigable ambientalmente y efectivo, para la extracción y cuantificación de cipermetrina en muestras de bovino (hígado, grasa perirrenal y músculo) utilizando dispersión de matriz en fase sólida ...
Amanda L. Chaparro +4 more
doaj +1 more source