Results 51 to 60 of about 1,543,296 (233)

AOX y medio ambiente. [PDF]

open access: yes, 1996
Los productos organohalogenados son muy utilizados por la industria y su presencia en el medio ambiente está siendo controlada. En los últimos años se han desarrollado varias técnicas de detección, siendo desde finales de los 80 los AOX (adsorbable ...
López Ribas, David   +1 more
core  

Global Fluoride Toxicology Landscape: Bibliometric Approaches and Scientific Mapping

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT This study analyzed research trends in the 100 most‐cited articles on fluoride toxicology, a topic widely debated due to the toxic effects associated with levels deemed safe for human exposure. A bibliometric analysis was conducted using the Web of Science‐Core Collection, extracting data such as citation count, authors, keywords, journal ...
Maria Karolina Martins Ferreira   +8 more
wiley   +1 more source

Assessment of Social Vulnerability in Argentina Using GIS. Development of a Local Index [PDF]

open access: yesAnuário do Instituto de Geociências, 2018
Social vulnerability assessment is a central part of mitigation and adaptation to risks. Social vulnerability maps can be used to improve land use management and economic development.
Natacha Soledad Represa   +1 more
doaj   +1 more source

Nests in trees are as good as or better than cliffs for two formerly persecuted, primarily cliff nesting eagles in Spain: a cautionary tale in defining the habitat of range‐restricted or threatened species

open access: yesWildlife Biology, EarlyView.
In the late‐20th century, golden and Bonelli's eagles suffered population declines on the Iberian Peninsula, partly due to human persecution. Habitat assessments – especially for Bonelli's eagles – always found or assumed strong associations with cliffs that provided nesting sites.
Ryan Baumbusch   +5 more
wiley   +1 more source

Medio ambiente fetal

open access: yesIatreia, 1996
Con base en el artículo clásico "Monte Everest in utero" se hace un análisis de la situación que afronta el feto con respecto a la disponibilidad de oxígeno; para una mejor comprensión del sufrimiento fetal se revisan los siguientes conceptos: presión barométrica, presión parcial del oxígeno atmosférico, presión parcial del oxígeno inspirado, presión ...
openaire   +3 more sources

Día Mundial del Medio Ambiente [PDF]

open access: yes, 2007
LA REVISTA VIRTUAL REDESMA pretende ser un apoyo al aprendizaje global. Arrancando textos de las aulas los llevaremos a los lectores y practicantes de los gobiernos, de áreas de conservación, de los proyectos, las ONGs, de las comunidades campesinas e ...
Blanes, José   +2 more
core  

First Non‐Invasive Monitoring of Fecal Steroids in Greater Caribbean Manatees (Trichechus manatus manatus)

open access: yesZoo Biology, EarlyView.
This study established the first fecal hormonal reference values (P4/E2) for the Greater Caribbean manatee. Using non‐invasive ELISA, the authors found no significant differences between mature and immature females, highlighting that long‐term monitoring and ultrasounds are essential to fully understand their complex reproductive cycles.
Vanessa Bermúdez‐Cardona   +3 more
wiley   +1 more source

Recursos litosféricos y medio ambiente [PDF]

open access: yes, 1995
This paper focuses that geological resources is an essential need in development of the society and specially of the developing countries. Taking into account the processes and environmental problems related to mining exploitation, these activities ...
Paz Magaz, A. I.   +1 more
core   +1 more source

Unraveling Occurrence Patterns and Diversity of Avian Malaria Parasites in Iberian Obligate and Facultative Scavenger Birds

open access: yesIntegrative Zoology, EarlyView.
Low overall haemosporidian occurrence (3.4%; 13/383). Unexpected high lineage diversity (10 new host–parasite interactions). Novel Leucocytozoon lineage (GYPBAR01) in all European vultures except the griffon vulture. Plasmodium relictum (lineage SGS1) in adult red kites.
Pilar Oliva‐Vidal   +5 more
wiley   +1 more source

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