Results 101 to 110 of about 830,199 (260)

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin

open access: yesJournal 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

The Lomagundi-Jatuli carbon isotopic event recorded in the marble of the Tandilia System basement, Río de la Plata Craton, Argentina [PDF]

open access: yes, 2019
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

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

open access: yesJournal of Fish Biology, EarlyView.
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]

open access: yes, 2018
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

A fractal pattern of hierarchical genetic population structure in mixed stocks across fish segregated by dams revealed by genomic resources for curimba Prochilodus lineatus

open access: yesJournal of Fish Biology, EarlyView.
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

open access: yesHistoria Mexicana El Colegio de México, 1959
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John McMaster
doaj  

Gender differences in cardiac left ventricular mass and function: clinical and experimental observations [PDF]

open access: yes, 2014
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

Pejerrey (Odontesthes bonariensis) Under Siege: Main Infectious Diseases and Their Role in Aquaculture and Wild Populations Amidst Environmental Change

open access: yesJournal of Fish Diseases, Volume 48, Issue 4, April 2025.
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

open access: yesHistoria Mexicana El Colegio de México, 1969
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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

open access: yesEdähi Boletín Científico de Ciencias Sociales y Humanidades del ICSHu
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

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