Results 31 to 40 of about 116,691 (233)

Sulfur‐Rich μ‐O Diiron Catalyst for Electrochemical Hydrogen Production

open access: yesEuropean Journal of Inorganic Chemistry, Volume 29, Issue 8, 10 March 2026.
A diferric μ‐oxido complex supported by a sulfur‐rich scaffold acts as a proton‐reduction electrocatalyst for H2 production via a μ‐hydroxido species. An aminodithiophenolate scaffold with an NS2 donor set supports diiron complex formation. The diferrous precursor activates O2, giving rise to a diferric μ‐oxido species, which acts as a proton‐reduction
Hugo C. Hernández‐Toledo   +7 more
wiley   +1 more source

Diversidad de fulgoromorpha (insecta-hemiptera) y fluctuaciones poblacionales de especies vectoras asociadas con el agrosistema maíz en tres areas agrológicas del NOA [PDF]

open access: yes, 2014
Fil: Marino de Remes Lenicov, Ana María. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Entomología; ArgentinaFil: Maciá, Arnaldo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo.
Brentassi, María Eugenia   +7 more
core  

The Lomagundi-Jatuli carbon isotopic event recorded in the marble of the Tandilia System basement, Río de la Plata Craton, Argentina [PDF]

open access: yes, 2019
The “Lomagundi-Jatuli event” corresponds to the most important δ13C positive anomaly (≥5‰) globally reported in Palaeoproterozoic marine carbonates (between ∼2.30 and 2.06 Ga).
Ballivian Justiniano, Carlos Alberto   +6 more
core   +1 more source

Two new records for the flora of Paraguay: Stemodia diplohyptoides and S. lobelioides (Plantaginaceae:Gratioleae)

open access: yesNordic Journal of Botany, Volume 2026, Issue 3, March 2026.
Stemodia diplohyptoides M.M.Sosa & Dematt. and S. lobelioides Lehm. (Gratioleae, Plantaginaceae) are reported for the first time in Paraguay, found in Alto Paraná and Presidente Hayes departments, respectively. These new records extend the known geographical range of both species, representing the northern records to date, S.
Y. Carlés Bechara   +4 more
wiley   +1 more source

Entre basaltos y lagunas : las estructuras de piedra de la meseta de Somuncurá. Apuntes para la reflexión de los patrones de movilidad de los cazadores-recolectores [PDF]

open access: yes, 2016
Fil: Miotti, Laura Lucía. División Arqueología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Terranova, Enrique. División Arqueología. Facultad de Ciencias Naturales y Museo.
Blanco, Rocío Vanesa   +5 more
core  

Plants and Insect Eggs: First Report of a Katydid Using a Fern as Host for Oviposition

open access: yesNew Zealand Journal of Botany, Volume 64, Issue 1, March 2026.
Ferns are the second most diverse lineage of vascular plants worldwide and are particularly abundant in tropical forests. However, the ecological significance of such remarkable diversity has been often underestimated. In this article, we report for the first time the observation of ferns, specifically Polytaenium cajenense (Desv.) Benedict ...
Rafael P. Farias   +5 more
wiley   +1 more source

Depositional processes and stratigraphic evolution of the Campanian deltaic system of La Anita Formation, Austral-Magallanes Basin, Patagonia, Argentina [PDF]

open access: yes, 2019
Coastal depositional systems are commonly classified in terms of the relative interaction of wave, tide and fluvial processes. The La Anita Formation represents the opportunity to study and better understand coastal sedimentary systems.
Cereceda, Abril   +4 more
core   +2 more sources

Vulnerability of marine megafauna to global at‐sea anthropogenic threats

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened ...
Michelle VanCompernolle   +309 more
wiley   +1 more source

Presencia de Indio en sistemas epitermales polimetálicos de Patagonia [PDF]

open access: yes, 2015
Fil: Jovic, Sebastián Miguel. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Recursos Minerales; ArgentinaFil: Lopez, Luciano. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo.
Guido, Diego Martín   +6 more
core  

Run to shelter or bury into the sand? Factors affecting escape behaviour decisions in argentinian sand dune lizards (Liolaemus multimaculatus) [PDF]

open access: yes, 2009
Fil: Kacoliris, Federico Pablo. División Herpetología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Guerrero, Emiliano. Facultad de Ciencias Naturales y Museo.
Guerrero, Emiliano   +4 more
core  

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