Results 11 to 20 of about 51,414 (264)

La eliminación de metales tóxicos presentes en efluentes líquidos mediante resinas de cambio iónico. Parte XII: Mercurio(II)/H+/Lewatit SP112

open access: yesRevista de Metalurgia, 2020
El mercurio(II) puede ser eliminado de disoluciones acuosas aci­das mediante la resina de intercambio catiónico Lewatit SP112. Se ha investigado la influencia de distintas variables experimentales sobre la carga del mercurio(II) en la resina: velocidad ...
Francisco José Alguacil   +1 more
doaj   +1 more source

Diversity, structure and natural history of amphibians in the upper Claro River basin, a buffer zone of the National Natural Park Los Nevados, Central Cordillera of Colombia

open access: yesJournal of Threatened Taxa, 2019
We present an assessment on composition, diversity and structure of amphibians in three zones along an elevation gradient (2,400–3,000 m) in the Central Cordillera of Colombia.
Julián Andrés Rojas-Morales   +1 more
doaj   +1 more source

Rickettsia parkeri strain Atlantic rainforest in ticks (Acari: Ixodidae) of wild birds in Arauca, Orinoquia region of Colombia

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2020
Birds are important hosts for the development of the immature stages of several tick species that are vectors for disease-causing microorganisms in animals and humans.
Marelid Cardona-Romero   +10 more
doaj   +1 more source

MERCOSUR 30 años, hacia un fortalecimiento de las infraestructuras humanas en la región

open access: yesRevista MERCOSUR de Políticas Sociales, 2021
El Tratado de Asunción, que fue firmado en 1991 y que cumple 30 años este año, marca el compromiso de los Estados Parte del MERCOSUR en la puesta en marcha de un proyecto de integración regional que contempla un territorio con un PIB de 4.580.000.000.000
María del Carmen García   +2 more
doaj   +1 more source

Polychromophilus (Haemosporida: Plasmodiidae): A review of association with bats (Mammalia, Chiroptera) and the first record in the Neotropical bat, Myotis albescens (Chiroptera, Vespertilionidae) from Colombia

open access: yesInternational Journal for Parasitology: Parasites and Wildlife
Some species within the family Plasmodiidae (Haemosporida) have been extensively studied due to their implications for human health. However, for other haemosporidians that infect wild animals the knowledge is limited.
Diego Fernando Ceballos-Pérez   +3 more
doaj   +1 more source

Cáncer colorrectal en Nuevo León: factores de riesgo,hallazgos clínicos y cambios en el desempeño físico de los pacientes a los 12 meses de postcirugía

open access: yesSalud Pública de México, 2016
En 2008 ocurrieron en México 3 275 muertes por cáncer co­lorrectal (CCR). De éstas, 798 (24.37%) correspondieron a los seis estados que forman la frontera norte de nuestro país. Nuevo León registró 135 muer­tes por CCR, lo cual representa 4.12 y 16.9% de
Herminia Guadalupe Martínez-Rodríguez   +9 more
doaj   +1 more source

Östemperleme Sıcaklığının Karbür İçermeyen Beynitik Çelik Dökümün Aşınma Davranışı Üzerine Etkisi

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi
Bu araştırmanın amacı, karbürsüz beynitik çelik döküm (KİB-ÇD) malzemenin mikroyapısal özellikleri ve aşınma performansının, uygulanan östemperleme sıcaklığından ne şekilde etkilendiğini ortaya koymaktır. Bu kapsamda, numuneler öncelikle 900°C sıcaklıkta
Ömer Şahin   +2 more
doaj   +1 more source

La imagen de la mujer en la prensa deportiva digital: análisis de las portadas de as.com y marca.com

open access: yesCuadernos de Información y Comunicación, 2017
En este artículo se analiza la imagen de la mujer en los dos medios digitales deportivos más leídos de España. En las portadas de as.com y marca.com se han contabilizado 5.105 fotografías.
Javier Mayoral Sánchez   +1 more
doaj   +1 more source

Improvement of Biodegradable Biocide’s Activity of Peroxyacetic Acid Basis Using Surfactants: Characterization and Stability

open access: yesJournal of Chemistry, 2015
This paper deals with the study of the kinetics decomposition reaction of the peroxyacetic acid under influence of surfactant additives. The peroxyacetic acid shows a decomposition rate of 1.70 × 10−3 h−1 and its activation energy is 66 kJ mol−1.
Esther Asensio   +3 more
doaj   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

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