New hadrosaurid remains from the Late Cretaceous of Río Negro Province (Argentina, Late Cretaceous)
Journal of Iberian Geology, 2017 PurposeAlthough the hadrosaurid record is more abundant in the Northern Hemisphere than in the Southern Hemisphere, it is in Argentina that most remains have been discovered, specifically in Patagonia.
P. Cruzado‐Caballero
semanticscholar +1 more source
Journal of Fish Biology, EarlyView.Abstract The Amazonian loricariid fish Pterygoplichthys gibbiceps, from the Rio Negro, and Pterygoplichthys pardalis, from the Rio Solimões, are facultative air‐breathers that can use the stomach as an air‐breathing organ. Measurement of oxygen uptake under progressive aquatic hypoxia revealed a relatively high hypoxia resistance of both species.
Bernd Pelster +2 more
wiley +1 more source
Violencia policial y judicial en Río Negro [PDF]
, 2017 Se propone el análisis de la relación que existe entre la Policía y la agencia judicial en la Provincia de Río Negro, en lo relativo al despliegue de violencia estatal punitiva que se manifiesta a través de la intervención policial y judicial sobre los ...
Neffa, Victoria Yasmín
core
Digenea, Strigeidae, Australapatemon canadensis Dubois and Rausch, 1950: first record in South America and a new host record [PDF]
, 2010 Australapatemon canadensis Dubois and Rausch, 1950 (Digenea, Strigeidae) is reported parasitizing to Cygnus melancoryphus (Molina) (Anatidae) from Lacombe Lagoon, Buenos Aires Province and Pellegrini Lake Río Negro Province, Argentina.
Drago, Fabiana Beatriz +1 more
core +3 more sources
Nitrogen excretion and oxygen consumption under severe hypoxia in siluriform fishes from the Amazon
Journal of Fish Biology, EarlyView.Abstract Siluriform fishes collected from the Rio Negro and Rio Solimões proved to be highly resistant to aquatic hypoxia. In all four species analysed in this study, aquatic oxygen consumption significantly decreased from normoxic levels at water PO2 values near 1 kPa. Air‐breathing activity was observed only in Sturisoma sp. (Rio Negro).
Bernd Pelster +2 more
wiley +1 more source
Los equipos de salud de atención primaria se enfrentan a una tarea compleja: realizar el abordaje de pacientes que viven en zonas rurales, acceder a los exámenes complementarios, hipotetizar un diagnóstico, emprender un tratamiento de acuerdo con los recursos disponibles y sostenerlo en el tiempo. Este artículo presenta una experiencia sobre la atención programada neurológica en pueblos rurales de la provincia de Río Negro. [PDF]
Revista Argentina de Salud Pública, 2016 Los equipos de salud de atención primaria se enfrentan a una tarea compleja: realizar el abordaje de pacientes que viven en zonas rurales, acceder a los exámenes complementarios, hipotetizar un diagnóstico, emprender un tratamiento de acuerdo con los ...
Sebastián, Villate +5 more
doaj
Concreciones silicocarbonáticas en basaltos alterados en el área de Praguaniyeu (prov. de Río Negro). [PDF]
, 1998 The alteration producís in vugs of the basaltic lavas in Praguaniyeu area (Prov. of Río Negro) were studied by means of polarizaron microscope, XRD, SEM and EDAX.
Maiza, Pedro, Marfil, Silvina Andrea
core
Journal of Fish Biology, EarlyView.Abstract The branchial epithelium of Potamotrygon—a member of the only strictly freshwater elasmobranch family Potamotrygonidae—was observed via immunohistochemistry, and two distinct forms of ionocytes were identified. The acid (A‐type) and base (B‐type) secreting cells with respective basolateral–apical localizations of Na+/K+‐ATPase–Na+/H+ exchanger
M. W. Rossi +3 more
wiley +1 more source
Democracia y construcción de una hegemonía en Río Negro. Algunos atisbos sobre el período de Álvarez Guerrero [PDF]
, 2013 Democracia y construcción de una hegemonía en Río Negro.
Hernán Pose, Pedro Dall’Armellina
core
Journal of Fish Biology, EarlyView.Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Danilo Araujo Soares Pereira +2 more
wiley +1 more source