Results 181 to 190 of about 491,970 (300)

The disappearance of malaria from Denmark, 1862–1900

open access: yesThe Economic History Review, Volume 79, Issue 2, Page 555-574, May 2026.
Abstract The reason for malaria's disappearance from northwestern Europe in the early twentieth century has long been discussed but remains an unresolved conundrum. This is partially due to a previous focus on the early modern era, and partially because various theories have never been tested against each other.
Mathias Mølbak Ingholt   +3 more
wiley   +1 more source

Focal Spot, Summer/Fall 2008 [PDF]

open access: yes, 2008
https://digitalcommons.wustl.edu/focal_spot_archives/1109/thumbnail ...

core   +1 more source

From External Governance to Energy Diplomacy: The European Pursuit of Green Hydrogen

open access: yesJCMS: Journal of Common Market Studies, Volume 64, Issue 3, Page 1135-1159, May 2026.
Abstract Following the Russian invasion of Ukraine, the European Union (EU) and its Member States are faced with the double imperative of ensuring energy security whilst reaching decarbonisation goals. A number of authors have suggested that we are observing a geopolitical Commission that is shifting to more active ‘energy diplomacy’, as opposed to its
Silvia Weko, Rainer Quitzow
wiley   +1 more source

Archaeology of agriculture in the Cumbres Calchaquíes (Tucumán, Argentina): new insights into La Ciénega and Tafí Valleys during the first millennium CE

open access: yesFrontiers in Environmental Archaeology
This study examines the agricultural and ecological strategies of pre-Hispanic Andean communities, focusing on their innovative practices and land management techniques that fostered complex agrarian systems.
Valeria Franco Salvi   +2 more
doaj   +1 more source

Cyanobacteria of High Wetlands from Northwestern Argentina

open access: yes, 2015
Fil: Mirande, Virginia. Fundación Miguel Lillo. Dirección de Botánica.
Mirande, Virginia   +2 more
openaire   +1 more source

Rhyssomatus subtilis Fiedler (Coleoptera: Curculionidae), primer registro para la Argentina y primera cita de planta hospedera, Glycine max (L) Merr. Rhyssomatus subtilis Fiedler (Coleoptera: Curculionidae), first record for Argentina and first record of Glycine max (L) Merr. as a host plant

open access: yesRevista Industrial y Agrícola de Tucumán, 2009
Los monitoreos de insectos efectuados en los cultivos de soja del noroeste argentino (NOA) durante las campañas 2005/2006, 2006/2007 y 2007/2008 resultaron en el hallazgo de adultos de Rhyssomatus subtilis Fiedler, 1937.
M. Guillermina Socías   +4 more
doaj  

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