Buscar
Mostrando ítems 111-120 de 671
Effectiveness of a fish ladder for two Neotropical migratory species in the Paraná River
(2018-01-01)
We evaluated the effectiveness of the fish ladder at Porto Primavera Dam in the severely regulated Upper Paraná River, for two Neotropical migratory fish species. Overall, 564 fish (448 Megaleporinus obtusidens and 116 M. ...
The use of an integrative approach to improve accuracy of species identification and detection of new species in studies of stream fish diversity
(2021-04-01)
In this study, we made an inventory of the stream and headwater ichthyofauna of the left bank of the Itaipu Dam Reservoir, located in the lower part of the Upper Paraná River basin, using an integrative approach of molecular ...
Extreme physiology: Biomass and transcriptional profiling of three abandoned Agave cultivars
(2021-11-15)
Agaves have been used for centuries as a feedstock in dryland areas for fibers, food, and beverages, and have enormous potential for biofuel production. Brazil is the world's largest producer of Agave fiber (sisal). However, ...
Structure and composition of the stream ichthyofauna of four tributary rivers of the upper Rio Paraná basin, Brazil
(2005-09-01)
The ichthyofauna of 24 stretches of streams, all of 100 m length and of fifth or lower order and most of second and third order, were sampled along four left bank tributaries (Rio do Peixe, Rio Aguapeí, Rio São José dos ...
Geomorphologic units of the Middle São Francisco River alluvial plain, Northeastern BrazilUnidades geomorfológicas da planície aluvial do Médio Rio São Francisco, Nordeste do Brasil
(2022-01-01)
The Sao Francisco rivers is the largest river draining the cratonic areas of Cerrado savanas and semiarid Caatinga environments in NE Brazil. This study presents the first geomorphologic map of the Middle Sao Francisco ...
Morphometric and structural diagnosis of fault reactivation in the Cenozoic: A case study of the Blumenau-Soledade Lineament in southern Brazil
(2021-01-01)
The hypothesis that geomorphometric parameters and structural-geological features are diagnostic of reactivation of the Blumenau-Soledade Lineament in central-western Santa Catarina, Brazil was tested by confronting data ...
Political costs of sovereign default : examining the impact of a sovereign’s failure to repay its debt on popularity, 1984-2012
(Universidad de San Andrés. Departamento de Ciencias Sociales, 2018-06)
This paper uses a popularity function to study the relationship between sovereign default and government popularity. I construct a dataset of default history for 55 sovereign entities from 1984-2012. By distinguishing ...
Semiárido, seca e “gerais” do Norte de Minas: uma revisão da bibliografia sobre o Alto-Médio São Francisco
(Universidade Federal de Minas GeraisBrasilICA - INSTITUTO DE CIÊNCIAS AGRÁRIASUFMG, 2018)
This article aims to describe, through a literature review, the characteristics and uniqueness of the region known as "gerais", polarized by the municipality of Januária, located on the left bank of the Upper Middle São ...
Balanço hídrico em sistema hidrogeológico cárstico, região de Lagoa Santa, Minas Gerais
(Universidade Federal de Minas GeraisBrasilIGC - DEPARTAMENTO DE GEOLOGIAIGC - INSTITUTO DE GEOCIENCIASUFMG, 2019)
The studied area, APA LagoaSanta Karst and its surroundings, is located 35 km north from Belo Horizonte and it covers around 505 km². The region has been a target to many enterprises that demand an increase on water request. ...
The hebrews: A religious legacyLos hebreos: Un legado religioso
(2014-10-01)
The first human settlements took place in the river banks such as the Euphrates, Tigris and Nile. Because of their fertility, those lands became the cradle of cultures that left an important legacy for the development of ...