Results 31 to 40 of about 250 (119)

Trends and Limitations of Lignin as a Starting Material

open access: yesBioResources, 2023
This editorial envisions a future in which greater value is obtained from technical lignins.  The currently available amounts of such lignins are immense, and the costs are often in line with lignin’s fuel value.
Laura G. Covinich, Maria Cristina Area
doaj   +2 more sources

Second-generation bioethanol from industrial wood waste of South American species [PDF]

open access: yesBiofuel Research Journal, 2017
There is a global interest in replacing fossil fuels with renewable sources of energy. The present review evaluates the significance of South-American wood industrial wastes for bioethanol production. Four countries have been chosen for this review, i.e.,
María E. Vallejos   +2 more
doaj   +1 more source

De provisiones y consumos urbanos: la comida en La Boca [PDF]

open access: yesLa Zaranda de Ideas, 2008
Abordamos el tema de la alimentación entre los pobladores de la ciudad de Buenos Aires a través del análisis de la estructura de consumo de dos espacios portuarios con distinta funcionalidad: una fonda/almacén (Barraca Peña) y un astillero (Fundación ...
Karina Vanesa Chichkoyan
doaj   +1 more source

Orden y ambigüedad en la formación territorial de Río de la Plata a fines del siglo XVIII

open access: yesHorizontes Antropológicos, 2003
Por mucho tiempo la heterogénea población que habitaba la región Río de la Plata, en las fronteras entre España y Portugal, hacia fines del siglo XVIII fue asociada con la barbarie.
Guillermo Wilde
doaj   +1 more source

Systematics of the Enigmatic Neotropical Rodent Genus Microakodontomys (Cricetidae: Sigmodontinae): New Evidence Supporting Its Distinctiveness and Endangered Status

open access: yesZoologica Scripta, Volume 54, Issue 5, Page 587-600, September 2025.
ABSTRACT The diversification of Neotropical sigmodontine rodents represents one of the most remarkable evolutionary events among mammals, encompassing numerous endemic, rare, and endangered genera and species. One of the most emblematic examples is Microakodontomys transitorius Hershkovitz 1993, originally described from a single specimen based on ...
Marcelo Weksler   +4 more
wiley   +1 more source

Participatory surveillance reveals marsh deer mortality event during an extraordinary flood in Ibera Wetlands, Argentina

open access: yesEcosphere, Volume 16, Issue 2, February 2025.
Abstract Mortality events of marsh deer (Blastocerus dichotomus) have been historically described in the southern margins of its geographical range. Few documented cases show how environmental changes and pathogens interact to trigger mortality scenarios and reveal their causes.
M. M. Orozco   +10 more
wiley   +1 more source

Efficacy and safety of a hydrocortisone aceponate‐containing ear spray solution in dogs with erythemato‐ceruminous otitis externa: A randomised, multicentric, single‐blinded, controlled trial

open access: yesVeterinary Dermatology, Volume 35, Issue 2, Page 197-206, April 2024.
Background – Erythemato‐ceruminous otitis externa (ECOE) is frequently seen in dogs affected with an allergic skin disease, with recurrent secondary bacteria and yeast overgrowths (detected on cytological examination). Objectives – The objective of the study was to compare the efficacy and safety of an ear spray containing only hydrocortisone aceponate
Delphine Rigaut   +3 more
wiley   +1 more source

An Overview of the Obtaining of Biomass-derived Gamma-valerolactone from Levulinic Acid or Esters without H2 Supply

open access: yesBioResources, 2021
Gamma-valerolactone (GVL) is a highly reactive keto-lactone and a promising platform biomolecule, used as an additive for food and fuels, green solvent, and fuels precursor, among others.
Giselle González, María C. Area
doaj   +1 more source

Desde los primeros puestos rurales hasta la estancia moderna del sur bonaerense: un recorrido arqueológico

open access: yesTrabajos y Comunicaciones, 2018
El avance de la población criolla sobre territorio indí­gena en el sur bonaerense desde la segunda mitad del siglo XIX implicó la emergencia, conformación y consolidación de un nuevo ámbito, el rural.
Vanesa Natalia Bagaloni
doaj   +1 more source

Variabilidad miticibdrial en muestras pre-colombinas de la Patagonia argentina. Hacia una visión de su poblamiento desde el ADN antiguo.

open access: yesRevista Argentina de Antropología Biológica, 2016
Distintas disciplinas han intentado explicar el poblamiento y la evolución de las poblaciones cazadoras recolectoras que habitaron la Patagonia argentina.
Cristian Marcelo Crespo   +4 more
doaj   +1 more source

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