Results 31 to 40 of about 33,743 (224)

Coalescent-based species delimitation in the sand lizards of the Liolaemus wiegmannii complex (Squamata: Liolaemidae) [PDF]

open access: yes, 2019
Coalescent-based algorithms coupled with the access to genome-wide data have become powerful tools forassessing questions on recent or rapid diversification, as well as delineating species boundaries in the absence of reciprocal monophyly.
Abdala   +118 more
core   +1 more source

PHOTOPHYSICAL AND PHOTOCHEMICAL SYSTEMS WITH SEMICONDUCTORSFOR THE CONVERSION OF SOLAR ENERGY. A REVIEW

open access: yesAnales (Asociación Física Argentina), 2021
Electrochemical energy sources are an alternative to replace technology based on the burning of fossil fuels. In an electrochemical system the potential drop spreads over a very narrow region at an interphase, creating high electric fields. So, there are
F. A. Filippin, H. J. Fasoli
doaj   +1 more source

Complex of primary and secondary parasitoids (Hymenoptera: Encyrtidae and Signiphoridae) of Hypogeococcus spp. Mealybugs (Hemiptera: Pseudococcidae) in the New World [PDF]

open access: yes, 2018
Se informan los resultados de los relevamientos de los parasitoides primarios y secundarios (hiperparasitoides) de Hypogeococcus spp. (Hemiptera: Pseudococcidae) realizados en el Nuevo Mundo durante el período 2009 para 2017 para obtener enemigos ...
Aguirre, María Belén   +6 more
core   +1 more source

Primer registro de Scelidotheriinae Ameghino (Xenartha, Mylodontidae) del Piso/Edad Chasiquense (Mioceno tardío) de la Argentina [PDF]

open access: yes, 2014
The subfamily Scelidotheriinae constitutes a group of mylodontids widely represented in the Quaternary of South America; however, the fossil record of the Neogene taxa is still scarce. In the present paper, a new specimen of this subfamily, corresponding
Contreras, Victor Hugo   +2 more
core   +1 more source

“Caminante no hay camino, se hace arqueología al andar”: reflexiones en torno a una arqueología política

open access: yesRevista del Museo de Antropologia, 2021
Este trabajo plantea una serie de preguntas tendientes a discutir los valores y normas impuestas en la arqueología argentina, por ejemplo ¿Es posible cambiar nuestras prácticas?,¿De qué modo podemos democratizar y flexibilizar la arqueología?,¿Desde ...
Ezequiel Gilardenghi
doaj   +1 more source

Geo-structural map of the Laguna Blanca basin (Southern Central Andes, Catamarca, Argentina) [PDF]

open access: yes, 2015
The Laguna Blanca basin is a rhomb-shaped basin located at the SE margin of the Puna plateau in the southern Central Andes (Catamarca, Argentina). An interactive analysis using remote sensing and field mapping enabled us to produce a geo-structural map ...
Massironi, Matteo   +2 more
core   +2 more sources

Registros de aves de selva en Catamarca, Argentina

open access: yesEl Hornero, 2000
In this paper we provide records of forest birds obtained during several surveys carried out in the mountains of Catamarca Province, Argentina, from 1981 to 1991. Thirty seven species are listed including localities, date and number of birds recorded. Catamarca province, at the southern end of the Yungas, contains about 63 % of the forest birds found ...
Nores, Manuel   +2 more
openaire   +3 more sources

Synopsis of Acanthocerini (Hemiptera, Coreidae) from Argentina [PDF]

open access: yes, 2013
Eight genera and 13 species of the tribe Acanthocerini are recorded in Argentina, i.e., Athaumastus haematicus (Stål), Athaumastus macer Brailovsky, Athaumastus subcarinatus (Stål), Athaumastus subterlineatus Bergroth, Beutelspacoris sanchezi Brailovsky,
Amyot   +49 more
core   +4 more sources

Paisaje sociopolítico y beligerancia en el Valle de Hualfín (Catamarca, Argentina) [PDF]

open access: yesAntípoda. Revista de Antropología y Arqueología, 2009
In this article we proposed an operative definition of landscape that includes not only its material aspects but also its capability to signify and direct social relationships. This concept is applied, focusing on the spatial dimension, to the study of three archaeological sites in the Argentinian Northwest, belonging to the Regional Development Period
Federico Wynveldt, Bárbara Balesta
openaire   +4 more sources

SISTEMAS FOTOFÍSICO Y FOTOQUÍMICO CON SEMICONDUCTORES PARA LA CONVERSIÓN DE ENERGÍA SOLAR. UNA ACTUALIZACIÓN

open access: yesAnales (Asociación Física Argentina), 2021
Las fuentes de energía electroquímica constituyen una alternativa para reemplazar la tecnología basada en la quema de combustibles fósiles. En un sistema electroquímico la caída de potencial se extiende sobre una región muy estrecha en una interfase ...
Francisco Angel Filippin, H.J. Fasoli
doaj  

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