Results 31 to 40 of about 2,018,011 (196)

Caracterización química y cuantificación del rendimiento de extracción de pigmento en siete accesiones mexicanas de Bixa orellana [PDF]

open access: yes, 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
core  

Phylogeny of subtribe Gonolobinae (Apocynaceae‐Asclepiadoideae) based on molecular and morphological data with a revised generic classification

open access: yesTAXON, Volume 75, Issue 2, April 2026.
Abstract The presently most densely sampled molecular phylogeny of the widespread New World subtribe Gonolobinae is presented, including about 35% of the ca. 520 species. Sampling focused on an even representation of the three main areas of total Gonolobinae distribution, South America, Central/North America, and the West Indian Islands, and the ...
Sigrid Liede‐Schumann   +4 more
wiley   +1 more source

Calidad en contenidos televisivos y engagement: Análisis de un canal privado en Colombia

open access: yesCuadernos.info, 2015
Este artículo expone los resultados de un proyecto de investigación enfocado en comprender los elementos que intervienen en la generación de engagement por parte de los televidentes colombianos y el aporte del concepto de ‘calidad televisiva’ a ese ...
Manuel Ignacio González Bernal   +3 more
doaj   +1 more source

The use of Twitter on fashion brands. A comparison between luxury and low-cost brands [PDF]

open access: yes, 2018
En este artículo se analizó comparativamente la capacidad dialógica de las marcas de moda de lujo frente a las denominadas low-cost en la red social Twitter.
Garcia Medina, Irene   +2 more
core   +3 more sources

Automating the analysis of public saliency and attitudes toward biodiversity from digital media

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Abstract Measuring public attitudes toward wildlife provides crucial insights into human relationships with nature and helps monitor progress toward Global Biodiversity Framework targets. Yet, conducting such assessments at a global scale presents challenges.
Noah Giebink   +8 more
wiley   +1 more source

Evolutionary mobility and genetic dynamics of MORFFO genes: shuttling among ancient plant lineages

open access: yesNew Phytologist, Volume 250, Issue 2, Page 1248-1264, April 2026.
Summary Plastid genomes (plastomes) of land plants are characterized by their architectural and genic content stability. However, fern plastomes exhibit unexpected dynamism, characterized by the presence of mobile protein‐coding genes (CDS) – Mobile Open Reading Frames in Fern Organelles (MORFFOs). We investigate the evolutionary dynamics of MORFFOs in
Paulo H. Labiak   +3 more
wiley   +1 more source

Bibliography of El Nino and associated publications [PDF]

open access: yes, 1975
ENGLISH: Citations from the fields of biological, physical and chemical oceanography, meteorology and marine fisheries are used to compile a new bibliography on El Nino phenomena and associated publications. An alphanumeric coding procedure relating this
Stevenson, Merritt R., Wicks, Helen R.
core  

Balancing Innovation and Control: Public Views on Risks and Governance of AI in Political Communication

open access: yesPolicy &Internet, Volume 18, Issue 1, March 2026.
ABSTRACT With the rise of AI, concerns about its potential for manipulation in political communication have intensified, accompanied by discussions about regulatory measures. Research has explored perceptions of risks and preferences regarding AI use and regulations among the general population, and in fields such as journalism.
Tobias Scherer   +3 more
wiley   +1 more source

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