Results 51 to 60 of about 65,290 (226)

In Situ Detection of Opal‐A in Jezero Crater, Mars

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract We report the in situ detection of amorphous hydrated silica in the Bills Bay abrasion patch, located in the eastern portion of the Margin Unit between the rim of Jezero crater and the western delta. Here, hydrated silica co‐occurs with olivine, Fe‐Mg carbonates, secondary Fe‐Mg silicates, and hydrated Mg‐sulfate as determined by UV Raman ...
Sergei V. Bykov   +26 more
wiley   +1 more source

Efecto de una intervención educativa en la hemoglobina capilar en una comunidad indígena de la Huasteca Potosina. Estudio piloto

open access: yesRevista Española de Nutrición Humana y Dietética, 2019
Introducción: El objetivo de esta investigación fue evaluar el efecto de una intervención educativa contextualizada a los alimentos disponibles en una comunidad indígena de la Huasteca Potosina, sobre la hemoglobina capilar.
Alejandra Castañeda-Díaz de León   +4 more
doaj   +1 more source

Therapeutic Use of Silver Nanoparticles in the Prevention and Arrest of Dental Caries

open access: yesBioinorganic Chemistry and Applications, 2020
Dental caries is one of the major diseases of the oral cavity affecting humans worldwide. Different alternatives have been used for its control, but its incidence and prevalence are still high. On the other hand, silver has been used for centuries due to
Claudia Butrón Téllez Girón   +4 more
doaj   +1 more source

An annotated list of the centipedes (Chilopoda) in the National Collection of Arachnids, Instituto de Biología, Universidad Nacional Autónoma de México [PDF]

open access: yes, 2010
The National Collection of Arachnids, Instituto de Biología, Universidad Nacional Autónoma de México (México City) houses 476 chilopod samples, of which 197 are determined to genus and/or species. These are documented here and represent several new state
Cupul-Magaña, Fabio Germán
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

Contaminantes emergentes. Problemática ambiental asociada al uso de antibióticos. Nuevas técnicas de detección, remediación y perspectivas de legislación en América Latina

open access: yesRevista de Salud Ambiental, 2020
Los antibióticos son fármacos considerados como contaminantes emergentes, usados para el tratamiento de enfermedades bacterianas, en salud humana y veterinaria.
Jessica Meléndez-Marmolejo   +6 more
doaj   +2 more sources

Compost obtained from feces of dairy cattle vs. fertilizer on triticale production (X Triticum secale Wittmack) [PDF]

open access: yes, 2016
El uso de abono es cada vez más frecuente en la agricultura por su efecto positivo sobre la fertilidad del suelo. El objetivo del presente estudio fue determinar la altura de planta, número de tallos por m2, longitud foliar, número de hojas por tallo y ...
Beltrán Santoyo, Miguel Ángel   +3 more
core  

Active Plume, Abandoned Ridge, or Ancient Slab? olivine‐Hosted Melt Inclusions Record the Mantle Melting Conditions Below the East Pacific Revillagigedo Archipelago, Mexico

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract The voluminous active volcanoes of the Revillagigedo Islands of Socorro and San Benedicto in the east Pacific Ocean exhibit hotspot geochemistry. However, the presence of a deep mantle plume has not been seismologically confirmed. Instead, a fossil subducted slab is identified in the lower mantle underneath the volcanoes. Moreover, the islands
Janne M. Koornneef   +7 more
wiley   +1 more source

A Characterisation of Extreme‐Heat Occurrence and Its Trends in Mexico Based on a High Resolution Dataset

open access: yesInternational Journal of Climatology, Volume 46, Issue 3, 15 March 2026.
As Mexico faces rising temperatures and increasing events of extreme heat, improvements in the analysis and characterisation of these phenomena are necessary, as they offer new insights into the spatial variability of such trends and their underlying causes.
David Maximiliano Zermeño‐Díaz
wiley   +1 more source

Valoración de las condiciones naturales asociadas con el desarrollo de la actividad turística en el estado de San Luis Potosí, México

open access: yesEspacio y Desarrollo, 2007
This paper examines the main characteristics of natural order associated to touristic practices thatsubsist in the San Luis Potosí territory, located at the meridian limit of the ancient Aridoamérica and occupies a central portion of the United States of
Valente Vázquez Solís
doaj  

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