Results 91 to 100 of about 2,319,806 (278)

Propagation of gravity waves and spread F in the low-latitude ionosphere over Tucumán, Argentina, by continuous Doppler sounding: first results [PDF]

open access: yes, 2014
Results of systematic analysis of propagation directions and horizontal velocities of gravity waves (GWs) and spread F structures in low-latitude ionosphere (magnetic inclination ~27°) in Tucumán region, Argentina, are presented.
Baše, J.   +12 more
core   +2 more sources

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

open access: yesThe Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

Further distribution of Gertrudielle validinervis (Herz.) Broth. in the Neotropics [PDF]

open access: yes, 2005
Gertrudiella validinervis (Herz.) Broth. is additionally recorded for the dry forests in northwestern Argentina.
Schiavone, Maria M.   +1 more
core  

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

open access: yesThe Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt   +4 more
wiley   +1 more source

O PROCESSO DE REORGANIZAÇÃO NACIONAL ARGENTINA DURANTE A DITADURA DE 1976

open access: yesRevista Binacional Brasil - Argentina, 2014
O golpe de 1976 não foi um mero acidente de percurso, como também não foram as demais ditaduras que a precederam (1943, 1955, 1962, 1966).
Daniela Moura Rocha de Souza
doaj  

Nidificación inusual del Loro Barranquero (Cyanoliseus patagonus) en cavidades naturales de árboles [PDF]

open access: yes, 2018
The Burrowing Parrot Cyanoliseus patagonus is known to breed in burrows mostly on cliffs and ravines in arid or semi‐arid regions of Argentina and Chile.
Berkunsky, Igor   +4 more
core  

Development of an ionic liquid-based dispersive liquid–liquid microextraction method for the determination of nifurtimox and benznidazole in human plasma [PDF]

open access: yes, 2013
Dispersive ionic liquid–liquid microextraction combined with liquid chromatography and UV detection was used for the determination of two antichagasic drugs in human plasma: nifurtimox and benznidazole.
Altcheh, Jaime Marcelo   +5 more
core   +2 more sources

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto   +3 more
wiley   +1 more source

La historia del running en Argentina = The history of running in Argentina

open access: yesMateriales para la Historia del Deporte, 2018
El capitalismo actual sienta las bases para la consolidación de nuevas prácticas deportivas atravesadas por lógicas económicas, que se expanden globalmente y se apropian singular y localmente.
María Nemesia Hijós
doaj  

Argentine Agricultural Policy: Producer and Consumer Support. Estimates 2007-2012 [PDF]

open access: yes, 2014
This paper analyzes agricultural policy in Argentina and calculates the degree of support received by producers and consumers. We present a summary of developments in the agricultural policy environment that have occurred in the last decades in Argentina,
Gallacher, Guillermo Marcos   +1 more
core   +2 more sources

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