Results 41 to 50 of about 4,786,246 (207)

CHEMICAL, MINERALOGICAL AND GEOTECHNICAL CHARACTERIZATION OF BARREIRAS FORMATION AND POST-BARREIRAS SEDIMENTS

, 2022
A Formação Barreiras, de origem sedimentar, se estende ao longo do litoral brasileiro e tem sido objeto de diversas pesquisas, devido sua extensão e variabilidade espacial, além de se encontrar numa região intensamente povoada e de elevado interesse econômico.
Freire, Lisyanne Vasconcelos, Júnior, Olavo Francisco dos Santos, Ingunza, Maria del Pilar Durante, Chaves, Leonardo Flamarion Marques, Neto, Osvaldo de Freitas   +4 more
openaire   +1 more source

Assessing the evolutionary distinctiveness of a highly threatened plant group: The urgency to preserve a unique lineage of evolution in Brazil

PLANTS, PEOPLE, PLANET, EarlyView.
Brazil's diverse flora is under several threats, with many unique lineages facing extinction, particularly in biodiverse regions like the Cerrado and campo rupestre. This study sheds light on the conservation needs of Cambessedesia (Melastomataceae), an endemic genus with 95% of its species endangered, using an approach to rank and prioritise species ...
Najla Bastos Scheidegger, Raquel C. Pizzardo, Bruno Vilela, Thuane Bochorny, Juliana Gastaldello Rando   +4 more
wiley   +1 more source

Iron oxides in plinthic soils on sedimentary deposits in northeastern Brazil

Revista Brasileira de Ciência do Solo, 1999
This study was conducted to examine the distribution and nature of Fe oxides in plinthic soils on the sediments of Barreiras Group (in the state of Piauí) and Itapecuru Formation (in the state of Maranhão) in Northeastern Brazil.
R. J. Heck, A. R. Mermut, M. C. Santos
doaj   +1 more source

Inferências sobre Vegetação e Clima no Holoceno a partir de Fitólitos e Pólen da Lagoa do Macuco, Litoral Norte do Estado do Espírito Santo (Brasil) [PDF]

, 2016
[EN] An interproxy approach focused on phytoliths and pollen, including radiocarbon dating and sediment particle-size analyses, has been carried out at Lagoa do Macuco, Linhares municipality, Espírito Santo State, Brazil.
Buso Junior, Antônio A., Calegari, Marcia R., Lorente, Flávio L., Madella, Marco, Osterrieth, M., Pessenda, L. C. R.   +5 more
core   +1 more source

Balancing tracks and trees: Assessing railroad impact on Brazilian biodiversity

PLANTS, PEOPLE, PLANET, EarlyView.
The Brazilian West–East Integration Railway (FIOL) aims to boost the national economy by improving commodity transport; however, it crosses three of Brazil's most biodiverse and fragile regions: the Caatinga, Cerrado and Atlantic Forest. Using digitised plant records and land‐use analyses, our study reveals significant vegetation loss within the ...
Ana Luiza Silva Rocha, Anselmo Nogueira, Matheus Colli‐Silva, Juliana Gastaldello Rando   +3 more
wiley   +1 more source

Nanomaterials' Multigenerational Effects by Single and Joint Exposure in Non‐mammalian Models

Environmental Toxicology, EarlyView.
ABSTRACT Nanotoxicology has mainly focused on single‐generation studies, leaving multigenerational toxicity underexplored. Having animal welfare recently gained importance, we aimed to provide the state‐of‐the‐art of knowledge about multigenerational effects in non‐mammalian models in the case of nanomaterials (NM) single and joint exposure to other ...
Andy Joel Taipe Huisa, Analía Ale, Azael Francisco Silva Neto, Lorena De Mendonça Lucena, Marcelo Estrella Josende, Milena Ferreira de Lima, Rhayanny Kethylly Pereira Santos, Martín Federico Desimone, Priscila Gubert, José María Monserrat   +9 more
wiley   +1 more source

Equine experimental lameness induction models

Equine Veterinary Education, EarlyView.
Summary Equine lameness due to musculoskeletal injury remains a common and significant cause of decreased performance. While our understanding and management of lameness have improved with advanced imaging, as well as diagnostic and therapeutic progression, a need for experimental equine models of lameness remains.
A. Dockery, B. Beasley, V. J. Moorman
wiley   +1 more source

Use of hydrogeophysical data to determine the role of faults in the geometry of the Barreiras Aquifer, Brazil

Brazilian Journal of Geology
Characterizing the geometry of an aquifer is fundamental for determining the locations of more productive wells. Commonly, flow and hydraulic parameters, such as transmissivity, are related to the thickness of the aquifer, which emphasizes the importance
Isaac Vinícius Fagundes de Souza, Leandson Roberto Fernandes de Lucena, Francisco Hilário Rego Bezerra, José Braz Diniz Filho   +3 more
doaj   +1 more source

Grupos estratégicos: uma ferramenta estratégica [PDF]

, 2002
Comunicação apresentada nas XII Jornadas Luso-Espanholas de Gestão Científica na Universidade Da Beira InteriorDesde os anos 70 do século XX tem sido desenvolvida a teoria dos grupos estratégicos, assistindo-se nas décadas de 80 e 90 a uma autêntica ...
Ribeiro, Joaquim Silva, Roldão, Victor Sequeira   +1 more
core  

Geochemical and Seismic Constraints on the Role of Mud Diapirs in Petroleum Migration and Accumulation in the Recôncavo Basin, NE Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT In the Recôncavo Basin, Northeast of Brazil, mud diapirs have been reported for decades, but their role within the basin's petroleum system remains poorly constrained. Here, we combine 2D seismic interpretation, field observations, and organic geochemical analyses of rocks and oil seeps to investigate the relationship between diapirism and ...
Cora Mattos, Egberto Pereira, Lucas Pinto Heckert Bastos, René Rodrigues   +3 more
wiley   +1 more source