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The Titanosaur Sauropods from the late Campanian–early Maastrichtian Allen Formation of Salitral Moreno, Río Negro, Argentina
(Polish Academy Of Sciences. Institute Of Paleobiology, 2013-04)
The dinosaur record of the Salitral Moreno locality (Río Negro Province, Argentina) is characterized by a high diversity of herbivore taxa, among them hadrosaurs, ankylosaurs, and titanosaur sauropods, but carnivores are ...
Elasmosaurs (Sauropterygia, Plesiosauria) from the La Colonia Formation (Campanian-Maastrichtian), Argentina
(Taylor & Francis Ltd, 2013-06)
Elasmosaur postcranial remains from the La Colonia Formation (Campanian–Maastrichtian), Chubut Province, Patagonia, Argentina, are described. The new material has small dimensions and caudal vertebrae with parapophyses ...
Electrophilic addition of Propargylic cations to allenes: formation of crowded Chloro- and Azido-Enynes by trapping of the resulting allylic cations with TMSX (X = Cl, N3): a synthetic and computational study
(Wiley VCH Verlag, 2013-07)
Propargylic cations, generated by the ionization of propargyl alcohols with catalytic amounts of Bi(OTf)3, react with arylsubstituted allenes to generate incipient allylic cations that are quenched in the presence of TMSCl ...
A new pipid frog from the Upper Cretaceous of Patagonia and early evolution of crown-group Pipidae
(Academic Press Ltd - Elsevier Science Ltd, 2016-07)
Pipid frogs are fully aquatic frogs that today inhabit freshwater environments of southern continents on both sides of the Atlantic Ocean, with a fairly good fossil record dating back to the Cretaceous. Here I report on ...
La palabra sensible: Herbert Marcuse, James Baldwin y Allen Ginsberg
(Universidad Nacional del Litoral, 2013-04)
A finales de la década de 1960, el filósofo alemán Herbert Marcuse propuso la idea de “nueva sensibilidad”, con la cual sintetizó sus reflexiones sobre un conjunto de pensamientos y experiencias que tendían a mantener ...