Results 231 to 240 of about 196,961 (299)
Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil
Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta +9 more
wiley +1 more source
Year-round acoustic presence of fin whales southwest of Svalbard suggests mixed-use habitat for feeding and breeding. [PDF]
Szesciorka AR +5 more
europepmc +1 more source
Geophysical investigation of the Santa Marta impact structure—Piauí State, Brazil
Abstract The Santa Marta impact structure in northeastern Brazil, recognized as a partially preserved complex crater, was investigated through an integrated geophysical study employing magnetotelluric (MT) and gravity methods. Our research provides constraints on the crater's subsurface architecture.
Elienara Vasconcelos +5 more
wiley +1 more source
Abstract We investigated the structural framework of the north–northwestern Paraná Basin in Brazil to test whether the pre‐impact structures in this region may have had any influence on the first‐order formation and morphostructure of the Araguainha impact structure (AIS).
Renato B. Bernardes +5 more
wiley +1 more source
Iran's Forward Defense in Sub‐Saharan Africa
Abstract This article examines Iran's security and defense initiatives in sub‐Saharan Africa between 1990 and 2024 and how they reflect the extraterritorial application of the regime's forward defense doctrine. In response to the long‐term erosion of its homeland defense capabilities since the Iran‐Iraq War of the 1980s—driven by infrastructure ...
Ariel Limanya Limbu, Ronen A. Cohen
wiley +1 more source
Speaking to Power: How Linguistic Minority Accents Shape Voter Perceptions of Party Leaders
ABSTRACT In multilingual countries, does the way minority group members speak the majority language hinder their chances of attaining the highest political office? Can their accent undermine their claim to represent all citizens? Is it associated with certain stereotypes?
Florence Laflamme, Philippe Chassé
wiley +1 more source
Abstract Introduction Sponges historically dominated the heterotrophic biomass of Florida Bay's hard‐bottom habitat, providing crucial ecosystem services including shelter for soniferous shrimp that contribute to the marine soundscape. The loss of the sponge communities has inspired restoration efforts using in‐water nurseries for vegetative ...
William C. Sharp +4 more
wiley +1 more source
Fall prevention interventions for Hispanic/Latino older adults: a scoping review protocol. [PDF]
Lopez J +3 more
europepmc +1 more source
Abstract Introduction Forest fragmentation and defaunation are major drivers of biodiversity loss in the Atlantic Forest of Brazil, where 70–90% of tree species depend on animal‐mediated seed dispersal. Reintroduction of large frugivores, such as cracids, is being used to restore species populations and lost ecological functions.
Maria P. M. X. Rufino +9 more
wiley +1 more source
ABSTRACT Annual tree‐ring oxygen‐isotope values were measured from sections of two fossil logs of Picea mariana (black spruce) recovered from last glacial maximum proglacial sediment in Illinois, USA. Collectively, the specimens date from ca. 25,130 to 24,720 cal years BP.
Dana M. Labotka +2 more
wiley +1 more source

