Results 101 to 110 of about 830,199 (260)
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
The Lomagundi-Jatuli carbon isotopic event recorded in the marble of the Tandilia System basement, Río de la Plata Craton, Argentina [PDF]
The “Lomagundi-Jatuli event” corresponds to the most important δ13C positive anomaly (≥5‰) globally reported in Palaeoproterozoic marine carbonates (between ∼2.30 and 2.06 Ga).
Ballivian Justiniano, Carlos Alberto +6 more
core +1 more source
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert +5 more
wiley +1 more source
Analysis of drawbacks and constraints of classification algorithms for three-phase voltage dips [PDF]
Voltage events are one of the most common and harmful disturbances of power electric systems. Voltage dips, swells and interruptions are included under this heading.
Carrica, Daniel Oscar +5 more
core +1 more source
Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Gabriel M. Yazbeck +5 more
wiley +1 more source
Aventuras asiáticas del peso mexicano
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John McMaster
doaj
Gender differences in cardiac left ventricular mass and function: clinical and experimental observations [PDF]
Background: The aim of this study was to evaluate gender-associated impact on left ventricular mass (LVM) and on left ventricular function (LVF) in humans and rats with aging. Methods: Myocyte area and collagen volume fraction (CVF) were studied in rats.
Aiello, Ernesto Alejandro +5 more
core +2 more sources
ABSTRACT The pejerrey (Odontesthes bonariensis) is a key species for recreational and commercial fisheries in Argentina and holds significant aquaculture potential. It has been introduced to various countries worldwide, including Japan, where intensive aquaculture has developed.
Aarón Torres‐Martínez +4 more
wiley +1 more source
La minería de la plata en el siglo XVIII: el caso Bolaños
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David A. Brading
doaj
Estadísticas económicas de la mina El Rosario de Pachuca, Hidalgo de 1851 a 1906: Una mina ejemplar
El objetivo de la investigación es demostrar la relevancia extractiva y productiva que tuvo la mina de El Rosario, para la Sociedad Aviadora de Minas del Real del Monte y Pachuca (SAMRMyP), durante la segunda mitad del siglo XIX. Con base en los cálculos
Mauricio Antonio Barreiro Núñez
doaj +1 more source

