Results 81 to 90 of about 11,793,694 (293)

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

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
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

Transboundary governance in the La Plata River basin: status and prospects

open access: yesWater international, 2018
The La Plata River Basin’s transboundary institutional arrangement is a complex system with different geographical bases and scopes, including 14 international organizations, four technical committees and one groundwater commission (not yet implemented).
P. Villar   +2 more
semanticscholar   +1 more source

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

open access: yesNordic Journal of Botany, EarlyView.
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

Reseña general de las adquisiciones y trabajos hechos en 1889 en el Museo de La Plata

open access: yesRevista del Museo de La Plata, 2016
El mencionar en detalle todos los objetos que se han incorporado a estas galerías durante el año pasado, y los trabajos llevados a cabo en las exploraciones y los laboratorios, ocuparía largo tiempo y algunos volúmenes, tanto es lo hecho.
Francisco P. Moreno
doaj   +1 more source

Spiroxys contortus (Rudolphi, 1819) and Hedruris orestiae (Moniez, 1889) in Argentine turtles [PDF]

open access: yes, 2016
Knowledge of parasites in turtles is scarce,particularly with regard to freshwater turtles of SouthAmerica. Here, we describe the association of Spiroxyscontortus (Rudolphi, 1819) in Phrynops hilarii (Duméril& Bibron, 1835) and S.
Alcalde, Leandro   +4 more
core   +3 more sources

Digitizing collections to unlock the full potential of palynology: A case study with the Smithsonian palynology collection

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Large palynological collections have been built over decades and contain vital information. However, they are often difficult to access and use effectively. What is the point of having such collections if they are not fully utilizable? To solve this problem, we digitized the Smithsonian palynological collection using both light and confocal microscopy.
Carlos Jaramillo   +37 more
wiley   +1 more source

Agroforestry and enhanced rock weathering: A dual strategy for sustainable cacao

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Cacao production is both economically vital and environmentally intensive, presenting a major sustainability challenge as a crop largely cultivated by smallholder farmers in climate‐vulnerable regions. This review synthesises evidence that integrating agroforestry with enhanced rock weathering (EW) may significantly reduce emissions from cacao ...
Isabella L. Steeley   +4 more
wiley   +1 more source

Potential distribution and susceptibility of Coffea arabica L. to climate change impacts

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Ecological niche models (ENMs) are vital for understanding the impact of historical factors on ecosystems and predicting future climate change scenarios. These models help assess how environmental shifts affect agricultural species like coffee, which supports millions of people globally.
Yuliana Grisel García‐Martínez   +1 more
wiley   +1 more source

Políticas de gobierno y transición tecnológica

open access: yesArquitecno, 2018
Ya en el relato mitológico era visible que la humanidad se desarrollaría conforme la posibilidad de desarrollo tecnológico, tal como lo posibilita Prometeo cuando provee a los hombres el fuego y con él consecuentemente la posibilidad de ampliar el menú ...
Horacio R. Lafalce   +6 more
doaj   +1 more source

First isolation and molecular characterization of Suid herpesvirus type 1 from a domestic dog in Argentina [PDF]

open access: yesOpen Veterinary Journal, 2018
Since Aujeszky`s disease (pseudorabies), which is caused by Suid herpesvirus type 1 (SuHV-1), was first notified in Argentina in 1978, many SuHV-1 strains have been isolated from swine.
Maria Soledad Serena   +9 more
doaj   +1 more source

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