Results 41 to 50 of about 4,037,385 (163)

Identificação e caracterização de solos coesos no Estado do Ceará Identification and characterization of cohesive soils in the State of Ceará, Brazil

Revista Brasileira de Ciência do Solo, 2004
Dada a grande importância dos solos coesos derivados de sedimentos da Formação Barreiras e sua extensa área ocupada no Nordeste brasileiro, este trabalho teve como objetivo identificar e caracterizar a ocorrência de solos coesos nos tabuleiros costeiros ...
H. V. Lima, A. P. Silva, P. T. K. Jacomine, R. E. Romero, P. L. Libardi   +4 more
doaj   +1 more source

Green Synthesis of Silver Nanoparticles Using Root Extract of Gomphrena vaga Mart.: Metabolomic Insights Into Nanoparticle Formation and Antimicrobial Activity

Nano Select, Volume 7, Issue 8, August 2026.
This study presents the green synthesis of ultrasmall silver nanoparticles using Gomphrena vaga Mart. root extract. The nanoparticles synthesized were stable and showed good broad‐spectrum antibacterial activity against Gram‐positive and Gram‐negative bacteria in initial studies.
Uedson da Silva das Neves, Thyerre Santana da Costa, Symone Costa de Castro, Maelson Cardoso Lacerda, Mauro Alves Bueno, Ljubica Tasic   +5 more
wiley   +1 more source

Spatial Econometric Analysis of Regional Aging: Evidence From German Counties

Population, Space and Place, Volume 32, Issue 6, August 2026.
ABSTRACT Regional demographic change is widely acknowledged to contribute to economic decline, making an understanding of the determinants of regional population aging crucial for designing effective policy interventions. However, research on these determinants remains limited, particularly at the sub‐national level.
Andree Ehlert
wiley   +1 more source

Cenozoic Sedimentation and Tectonic Deformation in the Central Part of the Potiguar Basin [PDF]

Geologia USP. Série Científica, 2010
Neogene and Quaternary sedimentary covers occur along the Brazilian coast and have been frequently describedtogether as a single unit. The study of Brazilian sedimentary basins concentrates on their rift phase, whereas the post-riftphase has been ...
Elissandra Nascimento Moura-Lima, Maria Osvalneide Lucena Sousa, Francisco Hilário Rego Bezerra, Milena Rocha de Aquino, Marcela Marques Vieira, Francisco Pinheiro Lima-Filho, Vanildo Pereira da Fonseca, Ricardo Farias do Amaral   +7 more
doaj  

THE INFLUENCE OF SEDIMENT GRAIN SIZE AND COMPOSITION ON THE MORPHODYNAMIC STATE OF MIXED SILICICLASTIC AND BIOCLASTIC SAND BEACHES IN ESPIRITO SANTO STATE, BRAZIL

Revista Brasileira de Geomorfologia, 2011
The beaches in front of the Barreiras Formation active sea cliffs are composed of mixed sands, which composition makes it more difficult to interpret the processes of their sedimentation.
Jacqueline Albino, Kenitiro Suguio
doaj   +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, Volume 8, Issue 4, Page 1223-1237, July 2026.
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

Beach ridges, foredunes or transgressive dunefields? Definitions and an examination of the Torres to Tramandaí barrier system, Southern Brazil

Anais da Academia Brasileira de Ciências, 2005
Many prograded barriers and some dunefields in theworld have been termed 'beach ridge' plains, but the actual genesis of the 'ridges' is often unknown. Use of the terms, berms, beach ridges and foredunes is also confusing in the literature because their ...
Patrick A. Hesp, Sergio R. Dillenburg, Eduardo G. Barboza, Luiz J. Tomazelli, Ricardo N. Ayup-Zouain, Luciana S. Esteves, Nelson L.S. Gruber, Elirio E. Toldo-Jr., Luiz L.C. de A. Tabajara, Luiz C.P. Clerot   +9 more
doaj   +1 more source

Balancing tracks and trees: Assessing railroad impact on Brazilian biodiversity

PLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1345-1356, July 2026.
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

La Formation sur mesure dans les cégeps en 1986-1987 : état de la situation /

, 1988
La couv.
Québec (Province). Service de formation des adultes, Dubé, Gilles   +1 more
core   +1 more source

Tectonics and paleogeography of the Marajó Basin, northern Brazil

Anais da Academia Brasileira de Ciências, 2002
The Marajó Basin area presents geologic and geomorphologic features chiefly due to the Mesozoic extension and post-Miocene neotectonics. The extension event with an Early and a Late Cretaceous phases originated four sub-basins that constitutes the Marajó
JOÃO B. S. COSTA, YOCITERU HASUI, RUTH L. BEMERGUY, ADILSON V. SOARES-JÚNIOR, JAVIER M. C. VILLEGAS   +4 more
doaj   +1 more source