Results 41 to 50 of about 19,338 (219)

Sedimentological and biofabric patterns for hybrid coquina deposits: Insights from wave tank experiments

open access: yesSedimentology, Volume 72, Issue 6, Page 1992-2024, October 2025.
ABSTRACT Hybrid bioclastic/siliciclastic coquinas are sedimentary accumulations typical of coastal‐ and shallow‐water settings, where wave breaking, longshore drift and wave shoaling drive sediment transport and control the final accumulations. These processes resulted in thick packages of sediments, as identified in the Lower Cretaceous depositional ...
Cristiano Fick   +8 more
wiley   +1 more source

Modulation of swimming in the gastropod Melibe leonina by nitric oxide [PDF]

open access: yes, 2002
Nitric oxide (NO) is a gaseous intercellular messenger produced by the enzyme nitric oxide synthase. It has been implicated as a neuromodulator in several groups of animals, including gastropods, crustaceans and mammals.
Newcomb, James M.   +1 more
core   +1 more source

Population structure of the bivalve Anomalocardia brasiliana, (Gmelin, 1791) in the semi-arid estuarine region of northeastern Brazil

open access: yesBrazilian Journal of Biology
For several decades, the bivalve mollusk Anomalocardia brasiliana has been extracted in estuarine areas in the semi-arid region of northeastern Brazil. However, information on both dynamics and abundance of their populations are missing. In this context,
AML Rodrigues   +3 more
doaj   +1 more source

A New Insight into the Taxonomy of Pseudo-nitzschia Genus from the Adriatic Sea: Description of P. brasiliana, P. galaxiae, P. hasleana, and P. linea

open access: yesJournal of Marine Science and Engineering, 2023
Marine diatoms of the genus Pseudo-nitzschia are widespread and occur in various environments. About half of the species described today have been shown to be toxic, producing the potent neurotoxin, domoic acid.
Jasna Arapov   +10 more
doaj   +1 more source

Flavonoids as Promising Akt1 Inhibitors in Cancer Medicine: Insights From Molecular Docking, Dynamics, DFT Calculations, and In Vitro Validation

open access: yesCancer Reports, Volume 8, Issue 8, August 2025.
ABSTRACT Background The PI3K/Akt/mTOR signaling pathway is commonly deregulated in different types of cancers, contributing to tumor proliferation, persistence, and resistance to treatment. Akt1, a crucial kinase within this pathway, plays a critical role in tumor progression and the occurrence of therapeutic resistance.
Shokoofeh Jamshidi   +4 more
wiley   +1 more source

Experimentação antropofágica em "Brasiliana" [PDF]

open access: yesTerra Roxa e Outras Terras: Revista de Estudos Literários, 2020
O artigo busca pensar a coluna Brasiliana, da primeira fase da Revista de Antropofagia, como um experimento antropofágico. A coluna, além de ser uma seção fixa da Revista, é uma das partes que melhor incorporam os valores antropofágicos nesse primeiro momento da publicação: utiliza-se da montagem, procedimento artístico caro às vanguardas, para, de ...
openaire   +2 more sources

From Herbarium to Landscape: New Records and Mapping Rare and Threatened Species of Brazilian Atlantic Rainforest

open access: yesEcology and Evolution, Volume 15, Issue 7, July 2025.
Botanical collections remain limited in the mountainous areas of the Brazilian Atlantic Rainforest, which compromises biogeographic knowledge of endangered and locally endemic species and many others that have not yet been described. These gaps hinder the accuracy of biodiversity indicators, limit the discovery and description of new species, restrict ...
Otávio Miranda Verly   +8 more
wiley   +1 more source

Hermaphroditism among dioecious Tagelus plebeius (Lightfoot, 1786) (Mollusca, Psammobiidae) and Iphigenia brasiliana (Lamarck, 1818) (Mollusca, Donacidae) on the Cachoeira River Estuary, Ilhéus, Bahia, Brazil Hermafroditismo nos moluscos dióicos Tagelus plebeius (Lightfoot, 1786) (Mollusca, Psammobiidae) e Iphigenia brasiliana (Lamarck, 1818) (Mollusca, Donacidae) na região estuarina do Rio Cachoeira, Ilhéus, Bahia, Brasil

open access: yesBrazilian Journal of Biology, 2010
The samples of Tagelus plebeius and Iphigenia brasiliana were manually collected on the Cachoeira River estuary region (Ilhéus, BA, Brazil) between August 2005 and August 2006, with a periodicity of 15 days, with 20 animals collected/sampled, performing ...
LO. Ceuta, G. Boehs, JJB. Santos
doaj   +1 more source

Describing viewpoints on human‐nature relationships to unveil socio‐environmental conflicts and support community‐based projects

open access: yesPeople and Nature, Volume 7, Issue 2, Page 475-492, February 2025.
Abstract Socio‐environmental changes are threatening Indigenous peoples and local communities (IP&LC), hampering conservation efforts, jeopardizing biocultural diversity and escalating environmental injustice. This situation fostered both collaborative research projects showing the potential of engaging with IP&LC for conserving biocultural diversity ...
Beatriz Demasi   +4 more
wiley   +1 more source

Bioluminescent signals spatially amplified by wavelength-specific diffusion through the shell of a marine snail [PDF]

open access: yes, 2011
Some living organisms produce visible light (bioluminescence) for intra- or interspecific visual communication. Here, we describe a remarkable bioluminescent adaptation in the marine snail Hinea brasiliana.
Deheyn, D.D., Wilson, N.G.
core  

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