Results 21 to 30 of about 12,792 (188)

Niveles de hemoglobina y su relación con la ingesta de proteínas de alto valor biológico y hierro en gestantes

open access: yesDuazary, 2020
En el Perú la anemia en gestantes es de 29,6%, siendo un indicador de malnutrición y de problemas de salud. Una dieta con nutrientes en calidad, cantidad y proporción adecuada puede reducir las complicaciones durante el embarazo.
Mario Echenique-Yupanqui   +1 more
doaj   +1 more source

Capacidad de fitorremediación de hierro de las lentejas de agua (Lemna minor) y la hydrilla (Hydrilla verticillata)

open access: yesRevista de Iniciación Científica, 2022
Este artículo describe el análisis realizado a la capacidad de las lentejas de agua (Lemna minor) de fitorremediar concentraciones de hierro, comparándolas con la capacidad de la hydrilla (Hydrilla verticillata) durante siete días.
Alexandra Bustamante   +4 more
doaj   +1 more source

Solitary fibrous tumor/hemangiopericytoma of the external auditory canal

open access: yesActa Oto-Laryngologica Case Reports, 2019
Introduction: Solitary fibrous tumor/hemangiopericytoma is an uncommon neoplasm that accounts for only 1–2% of all soft tissue tumors. To the best of our knowledge only three cases of this tumor have been described in the external auditory canal in the ...
Jefferson Rijo-Cedeño   +3 more
doaj   +1 more source

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

open access: yesBiological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón   +38 more
wiley   +1 more source

Globally widespread weeds show preadaptation to non‐analogue climates: a common garden approach

open access: yesOikos, EarlyView.
Climatic niche shifts have been documented for plant species introduced into new regions, however the underlying mechanisms are poorly understood. Niche shifts into novel climates are particularly difficult to predict as previous occurrence data cannot reveal whether these novel climates are within species' fundamental niche limits.
Thomas Frank Carlin   +3 more
wiley   +1 more source

When alien plants become health hazards: An applied study on toxic and allergenic risks in Italy

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Alien plants are often studied for their ecological harm, but their risks to human and animal health remain poorly documented. This study provides the first comprehensive catalogue of poisonous and allergenic alien plants in Italy, identifying which species are dangerous, where they grow and who is most at risk—from children in city parks to pets and ...
Giulio Barone   +3 more
wiley   +1 more source

Estudio del deterioro de algunos elementos antiguos de la catedral de Toledo

open access: yesRevista de Metalurgia, 2001
La Catedral de Toledo se edificó en un período de más de 200 años, bajo numerosos criterios de construcción que se reflejan en la multiplicidad de estilos que alberga (entre mudéjar y gótico, con aportaciones flamencas, barrocas y renacentistas).
Juan Guillermo Castaño González   +2 more
doaj   +1 more source

Precipitación de fierro y manganeso secuencial de efluentes de drenaje ácidos

open access: yesRevista del Instituto de Investigación de la Facultad de Minas, Metalurgia y Ciencias Geográficas, 2021
Los efluentes ácidos de la lixiviación de los minerales sulfurados podrían ser un pasivo que retornara parte de su costo de tratamiento al ser obtenidos los elementos económicos, como el Fe y Mn.
Julia Marilú Calderón de Alvarado   +1 more
doaj   +1 more source

Water Losses and Environmental Efficiency in Urban Water Supply Systems: A Comparative Assessment for Spain and Portugal

open access: yesSustainable Development, EarlyView.
ABSTRACT Water losses are a critical environmental and operational challenge, especially in regions exposed to increasing water stress. This study assesses the environmental productivity of municipal water supply services in Spain and Portugal during the period 2014–2022, explicitly treating losses as an undesirable output.
Elisabet Zafra Gómez   +4 more
wiley   +1 more source

Frotis superficial frente a aspiración percutánea para el diagnóstico de infección de herida crónica: ¿resultados discrepantes?

open access: yesGerokomos
Presentamos un estudio observacional prospectivo en 112 pacientes con heridas crónicas de diferentes etiologías y con diagnóstico clínico de sospecha de infección. Se comparan los resultados microbiológicos obtenidos mediante dos tipos de toma de muestra:
María Muñoz Algarra   +5 more
doaj   +1 more source

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