Results 31 to 40 of about 4,037,385 (163)

Iron oxides in plinthic soils on sedimentary deposits in northeastern Brazil

open access: yesRevista 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

Powdered hibiscus anthocyanin‐nanofibril complexes as natural colourants: Stability and application in yoghurt and soft candy

open access: yesColoration Technology, EarlyView.
Abstract The instability of anthocyanins limits their application as natural food colorants. This study aimed to enhance the stability of anthocyanins extracted from Hibiscus sabdariffa through copigmentation with protein nanofibrils produced from pea, rice, gluten and whey isolates. Linear and curly nanofibril structures were prepared and incorporated
Vildan Eyiz   +2 more
wiley   +1 more source

Sleep Health of Athletes of Different Sports: Translation and Validation of the Athlete Sleep Screening Questionnaire to Portuguese

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT This study aimed to translate and validate the Athlete Sleep Screening Questionnaire (ASSQ) into Portuguese and assess the sleep health of athletes using the ASSQ. Translation followed established scientific guidelines. A sample of 246 Portuguese athletes from various sports completed the ASSQ, the Pittsburgh Sleep Quality Index (PSQI) and the
João Barreira   +4 more
wiley   +1 more source

Microbiome‐Derived Tryptophan Metabolites Regulate AhR Signaling to Restore Epithelial Barrier Integrity in Inflammatory Bowel Disease

open access: yesMicrobiologyOpen, Volume 15, Issue 5, October 2026.
The graphical abstract illustrates how microbiome‐derived indoles activate the aryl hydrocarbon receptor to restore the intestinal barrier. The picture contrasts the “leaky gut” state with the restored homeostasis achieved through AMPK, Nrf2, and IL‐22 signaling.
Mohammad Ali Mahdiabadi   +2 more
wiley   +1 more source

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

open access: yesBrazilian 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   +3 more
doaj   +1 more source

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

open access: yesEnvironmental Toxicology, Volume 41, Issue 10, Page 957-974, October 2026.
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   +9 more
wiley   +1 more source

Different Effects of Induced Plant Defense on Population Densities of Specialist and Generalist Insects: An Explanation by Mathematical Modeling

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
Induced defense chemicals in plants determine the community structure of different insect (herbivore) groups. In particular, specialists are endemic and generalists are non‐endemic in the wild because of the ecological roles of induced secondary metabolites.
Suman Chakraborty, Stefan Schuster
wiley   +1 more source

Programa Esporte e Lazer da Cidade, Núcleo Barreiras (BA) - Apresentação

open access: yes, 2019
Apresentação em Power Point contendo 13 slides. Apresenta a logomarca do Programa Esporte e Lazer da Cidade (PELC), da Superintendência dos Desportos do Estado da Bahia (SUDESB) e do Governo do Estado da Bahia.
Núcleo Barreiras, Equipe
core   +1 more source

A new combination in Strophopappus (Asteraceae, Vernonieae, Lepidaploinae)

open access: yesNordic Journal of Botany, Volume 2026, Issue 9, September 2026.
Revisions of herbarium collections reveal a new combination in Strophopappus (Asteraceae, Vernonieae, Lepidaploinae). Strophopappus comprises nine species occurring in South America, eight of which are endemic to Brazil. Currently, Vernonia riedeliana is treated as a synonym of Strophopappus bicolor.
Danielle Remor   +2 more
wiley   +1 more source

New Geological and Geophysical Data for the Geometric and Stratigraphic Characterization of the Alhandra Sub-basin (Southeast of Paraíba) [PDF]

open access: yesGeologia USP. Série Científica, 2009
Some recent geological and geophysical reconnaissance studies carried out in the Alhandra Sub-basin (southern segmentof the Paraíba Basin) have revealed very interesting structural and stratigraphic behaviors that have not yet been described.Four ...
Benjamim Bley de Brito Neves   +3 more
doaj  

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