Results 41 to 50 of about 7,350 (178)

Risco relativo e extensão de perda de biodiversidade na bacia do rio Pandeiros, tributário do rio São Francisco [PDF]

, 2020
Identifying the changes caused by human activities in aquatic ecosystems and understanding how they affect biodiversity are fundamental steps for managing the São Francisco River basin.
Isabela Martins, Marcos Callisto de Faria Pereira, Diego Rodrigues Macedo   +2 more
core  

Characterization of a Portable Computed Tomography System for In Situ Analysis of Wooden Sculptures in Cultural Heritage

X-Ray Spectrometry, EarlyView.
ABSTRACT Portable X‐ray computed tomography (portable CT) has become an important tool for the non‐destructive investigation of cultural heritage objects, particularly when in situ analysis is required. This work presents the experimental characterization and application of a transportable cone‐beam CT system designed for the inspection of large and ...
Anderson de Paula, Isis Franzi, Roberta Borges, Josiane Cavalcante, Olga Araujo, Alessandra Machado, Ricardo Tadeu Lopes, Davi Ferreira de Oliveira   +7 more
wiley   +1 more source

Causes and consequences of seasonal changes in the water flow of the São Francisco river in the semiarid of Brazil

Environmental and Sustainability Indicators, 2020
The objective of this study was to evaluate the causes and consequences of changes in the water flow of the São Francisco River, on the border between the states of Sergipe and Alagoas, a Brazilian semiarid region.
Anderson dos Santos, Pabricio Marcos Oliveira Lopes, Marcos Vinícius da Silva, Alexandre Maniçoba da Rosa Ferraz Jardim, Geber Barbosa de Albuquerque Moura, Gabriel Siqueira Tavares Fernandes, Douglas Alberto de Oliveira Silva, John Lennon Bezerra da Silva, Joez André de Moraes Rodrigues, Emanuel Araújo Silva, José Francisco de Oliveira-Júnior   +10 more
doaj   +1 more source

ORCHESTRATING DIFFERENCE AND SIMILARITY: Black Fungibility, and the Spatial Redrawing of Racial Categories in Spanish Colonial Morocco, Sahara and Guinea

International Journal of Urban and Regional Research, EarlyView.
Abstract In this article I dissect the spatial strategies through which the Spanish attempted to orchestrate both racial difference and similarity in the African colonies of Morocco, Western Sahara and Equatorial Guinea during the first half of the twentieth century.
Pol Fité Matamoros
wiley   +1 more source

São Francisco river Integration Project, Eastern Axis: losses analysis and performance indicators

RBRH, 2017
Water scarcity is an old problem in the brazilian Northeast semiarid region and limits the economic and social development of the region. To mitigate negative impacts of this situation, the National Integration Ministry elaborated the São Francisco River
Emmanuel Eduardo Vitorino de Farias, Wilson Fadlo Curi, Laudízio da Silva Diniz   +2 more
doaj   +1 more source

Integrative taxonomy reveals four new species of the armoured catfish genus Pareiorhina (Siluriformes: Loricariidae) from the upper Paraná River basin, Brazil

Journal of Fish Biology, EarlyView.
Abstract Four new species of the small‐sized armoured catfish genus Pareiorhina are described from mountain ranges in the Grande River drainage, upper Paraná River basin, based on morphological and molecular species delimitation methods. Molecular analyses based on the cytochrome oxidase subunit I (COI) marker recovered Pareiorhina as polyphyletic ...
Pedro L. C. Uzeda, Luana J. Sartori, Axel M. Katz, Felipe P. Ottoni, Wilson J. E. M. Costa, Francisco Langeani, Valter M. Azevedo‐Santos   +6 more
wiley   +1 more source

Time‐calibrated relationships of a rare cave catfish (Trichomycterus rubbioli): Shedding light on troglobitic lifestyle origin in the Brazilian caatinga

Journal of Fish Biology, EarlyView.
Abstract Catfishes of the subfamily Trichomycterinae comprise the most diverse fish group with species adapted to live in Neotropical caves, but past evolutionary scenarios that have driven the origin of these troglobitic species remain unknown. We herein investigate the phylogenetic position of the cave‐restricted Trichomycterus rubbioli, endemic to ...
Wilson J. E. M. Costa, Paulo J. Vilardo, José Leonardo O. Mattos, Axel M. Katz, Valter M. Azevedo‐Santos, Pedro L. C. Uzeda, Rodrigo L. Ferreira   +6 more
wiley   +1 more source

The São Francisco River transposition and Pipipã people’s health, in Floresta, Pernambuco, Brazil

, 2018
Ações governamentais de implantação de projetos de desenvolvimento nos territórios indígenas, cujo modelo explorador está vinculado à expectativa de suposto progresso econômico e social, vêm afetando as perspectivas de futuro dos povos em diversos países
Gonçalves, Glaciene Mary da Silva, Scott, Russell Parry, Gurgel, Idê Gomes Dantas, Silva, Edson, Costa, André Monteiro   +4 more
core   +1 more source

Presentation Dossier Stories of the São Francisco River: Subjects, Territories, and Temporalities

, 2023
PresentationDossier Stories of the São Francisco River: Subjects, Territories, and ...
Vieira da Cruz, José, Santana, Pedro Abelardo   +1 more
core   +1 more source

A new sexually dimorphic species of the armoured catfish genus Neoplecostomus (Siluriformes: Loricariidae) from Neotropical Atlantic coastal drainages

Journal of Fish Biology, EarlyView.
Abstract A new species of the small‐sized armoured catfish genus Neoplecostomus is described from Neotropical Atlantic coastal drainages, in southeast Brazil. The new species can be readily diagnosed from all congeners by having the first plates of the ventral series reduced in size, rounded and ventrally displaced, resulting in a naked band between ...
Pedro L. C. Uzeda, Tiago C. Pessali, Axel M. Katz, Felipe P. Ottoni, Francisco Langeani, Priscilla C. Silva   +5 more
wiley   +1 more source