Results 11 to 20 of about 1,387 (182)

PROPOSTA DE EXPERIMENTO SUBSTITUINDO METAL PESADO NAS AULAS DE QUÍMICA NO ENSINO SUPERIOR

open access: yesHolos, 2016
A preocupação ambiental permeia os diferentes âmbitos de ensino e pesquisa tanto nacional como internacional. Não obstante, ainda é possível observar a presença de experimentos, em instituições de ensino superior, que provoque impacto visual como, por ...
Márcia Gorette Lima da Silva   +3 more
doaj   +3 more sources

Almafuerte: Metal pesado argento and its construction of Argentinian nationalism [PDF]

open access: yesMetal Music Studies, 2016
This article analyses the tension between the local and the global in metal pesado argento of Almafuerte, the most massive band in the metal scene of Argentina.
Calvo, Manuela Belén   +1 more
exaly   +2 more sources

Destino do metal pesado chumbo de rejeitos urbanos de Maringá, Estado do Paraná

open access: yesActa Scientiarum: Technology, 2001
Os resíduos da ação antrópica são um permanente desafio ambiental. Neste sentido, este trabalho teve como objetivo avaliar o metal pesado Pb no esgoto (afluente e efluente) e lodo das ETEs de Maringá, Estado do Paraná.
Ervim Lenzi   +3 more
doaj   +2 more sources

Intoxicación ocupacional por metales pesados

open access: yesMedisan, 2017
Se efectuó una revisión bibliográfica exhaustiva con vistas a demostrar la relación existente entre ciertas profesiones y las intoxicaciones por metales pesados.
Dunia Rodríguez Heredia
doaj   +1 more source

Índice de translocação de nutrientes em mudas de cedro (Cedrela fissilis Vell.) e de ipê-roxo (Tabebuia impetiginosa (Mart.) Standl.) submetidas a doses crescentes de cádmio, níquel e chumbo [PDF]

open access: yesRevista Árvore, 2002
Com o objetivo de avaliar os efeitos da toxidez de Cd, Ni e Pb, mudas de cedro e de ipê-roxo foram cultivadas em solução nutritiva de Clark, em condições de casa de vegetação do Departamento de Ciência do Solo da Universidade Federal de Lavras, com doses
Haroldo Nogueira de Paiva   +2 more
doaj   +1 more source

Brain and antennal transcriptomes of host ants reveal potential links between behaviour and the functioning of socially parasitic colonies

open access: yesMolecular Ecology, Volume 32, Issue 18, Page 5170-5185, September 2023., 2023
Abstract Insect social parasites are characterized by exploiting the hosts' social behaviour. Why exactly hosts direct their caring behaviour towards these parasites and their offspring remains largely unstudied. One hypothesis is that hosts do not perceive their social environment as altered and accept the parasitic colony as their own.
Marah Stoldt   +3 more
wiley   +1 more source

Proximity to metal mining is related to aspects of feather coloration but not fluctuating asymmetry in the Russet‐crowned Motmot (Momotus mexicanus) in south‐central Mexico

open access: yesIbis, Volume 165, Issue 2, Page 587-601, April 2023., 2023
Mining is present in all major biomes worldwide and overlaps strongly with areas of importance for bird conservation. Mining causes multiple types of environmental disturbance, including habitat alteration, increased human presence and persistent heavy metal pollution. Feather coloration and fluctuating asymmetry (random deviation from perfect symmetry
Lynna Marie Kiere   +5 more
wiley   +1 more source

Linking animal behaviour and tree recruitment: Caching decisions by a scatter‐hoarder corvid determine seed fate in a Mediterranean agroforestry system

open access: yesJournal of Ecology, Volume 111, Issue 2, Page 400-411, February 2023., 2023
The consequences of seed caching for seedling early establishment are driven by a fine decision‐making process of the disperser. Magpies seemed to ponder the characteristics of the habitat and the seed itself to determine where and how to cache each nut. By doing so, magpies reinforced the quality of seed dispersal effectiveness, as they cached walnuts
Mercedes Molina‐Morales   +8 more
wiley   +1 more source

Exposición a químicos disruptores endócrinos obesogénicos y obesidad en niños y jóvenes de origen latino o hispano en Estados Unidos y Latinoamérica: una perspectiva del curso de la vida

open access: yesObesity Reviews, Volume 22, Issue S5, Octubre 2021., 2021
Resumen En el 2019, en seguimiento a un taller dirigido por el Global Health Studies del Fogarty International Center sobre el tema de la prevención de la obesidad infantil y las sinergias de investigación que surgen a través de las colaboraciones transfronterizas, convocamos a un grupo de expertos de Estados Unidos y Latinoamérica para que realizaran ...
Wei Perng   +16 more
wiley   +1 more source

Implicaciones de la acumulación de Cadmio en la cadena productiva del cacao

open access: yesManglar, 2022
La presencia de cadmio en la cadena productiva del cacao ha establecido una barrera comercial que afecta considerablemente las exportaciones de los países latinoamericanos a Europa. Debido a que las plantas de cacao tienden a acumular trazas de cadmio en
María Isabel Velásquez Vélez   +3 more
doaj   +1 more source

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