Results 31 to 40 of about 50,390 (204)

Monitoreo de cianobacterias como estrategia para el aseguramiento de la calidad del agua potable distribuida en el Área Metropolitana de San Salvador, El Salvador

open access: yesTecnología y ciencias del agua
El lago de Güija posee una superficie aproximada de 45 km2 y una profundidad máxima de 21 m en época seca; forma parte del complejo lagunar homónimo y su importancia como ecosistema fue reconocida en 2010 tras la obtención de su declaratoria como sitio ...
Luis Ortez   +3 more
doaj   +1 more source

Forecasting temporal dynamics of cutaneous leishmaniasis in Northeast Brazil. [PDF]

open access: yes, 2014
IntroductionCutaneous leishmaniasis (CL) is a vector-borne disease of increasing importance in northeastern Brazil. It is known that sandflies, which spread the causative parasites, have weather-dependent population dynamics.
Carvalho, Edgar M   +8 more
core   +3 more sources

Centennial-scale precipitation anomalies in the southern Altiplano (18° S) suggest an extratropical driver for the South American summer monsoon during the late Holocene [PDF]

open access: yesClimate of the Past, 2019
Modern precipitation anomalies in the Altiplano, South America, are closely linked to the strength of the South American summer monsoon (SASM), which is influenced by large-scale climate features sourced in the tropics such as the Intertropical ...
I. A. Jara   +10 more
doaj   +1 more source

An annotated checklist of freshwater copepoda (crustacea, hexanauplia) from continental Ecuador and the Galapagos archipelago [PDF]

open access: yes, 2019
An annotated checklist of the free-living freshwater Copepoda recorded in different regions in Ecuador (including the Amazon, the Andes, the coastal region, and the Galapagos Islands) is here provided.
Corgosinho P. H. C.   +6 more
core   +1 more source

Structure and dynamics of phytoplankton in an Amazon lake, Brazil

open access: yesRevista de Biología Tropical, 2010
Natural lake systems represent important reservoirs for residential water supply, fish production, recreational activities and enjoyment of their natural beauty. Nevertheless, human impacts may affect their health status resulting in degradation and loss
Ise de Goreth Silva   +3 more
doaj   +2 more sources

Análisis espacio-temporal de florecimientos algales nocivos en un lago-cráter tropical usando datos MODIS (2003-2020)

open access: yesRevista de Teledetección, 2023
El lago-cráter de Santa María del Oro en el estado de Nayarit, México, presenta Florecimientos Algales (FA) de manera cíclica anual, el florecimiento y posterior decaimiento de estas poblaciones de crea cambios de color en el agua, generalmente en la ...
Lizette Zareh Cortés-Macías   +5 more
doaj   +1 more source

Deep-water macroalgae from the Canary Islands: new records and biogeographical relationships [PDF]

open access: yes, 1993
Due to the geographical location and paleobiogeography of the Canary Islands, the seaweed flora contains macroalgae with different distributional patterns.
A. B. Joly   +48 more
core   +1 more source

Evolution of the Great Tehuelche Paleolake in the Torres del Paine National Park of Chilean Patagonia during the Last Glacial Maximum and Holocene [PDF]

open access: yes, 2012
Indexación: Web of Science; ScieloRESUMEN. Una serie de morrenas glaciares se distribuyen desde el margen oriental de la cuenca de drenaje Torres del Paine a cerca del actual margen de los Campos de Hielo Patagónico, junto con una serie de terrazas ...
Airo, Alessandro   +4 more
core   +2 more sources

“Localising Tropical Medicine”: A History of the Medical Research Institute (MRI) in Colonial Lagos, 1907–1920s

open access: yesModern Africa: Politics, History and Society, 2021
This article explores an early episode in the history of tropical medicine in colonial Lagos, British West Africa. It probes into the activities and outputs of scientists who operated within the Medical Research Institute (MRI) as a way to further complicate the agendas of tropical medicine.
openaire   +4 more sources

GENERACIÓN DE CRECIDAS Y SU RELACIÓN CON LA URBANIZACIÓN EN LA SUBCUENCA DEL RÍO VILLALLOBOS

open access: yesAgua, Saneamiento & Ambiente, 2022
La subcuenca del río Villalobos constituye la parte alta de la cuenca del río María Linda, se encuentra asentada parte de la ciudad capital de la república de Guatemala, así como municipios periféricos, región que ha experimentado un aumento constante ...
Juan Carlos Juan Carlos
doaj  

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