Results 31 to 40 of about 780 (102)

Taninos

open access: yesRevista de Química, 1992
Este artículo no presenta ...
Carmen María Alvarez Agüero   +1 more
doaj  

Teor de taninos em três espécies medicinais arbóreas simpátricas da caatinga Tannin concentration in three simpatric medicinal plants from caatinga vegetation

open access: yesRevista Árvore, 2005
O teor de taninos em três espécies medicinais do semi-árido do Nordeste do Brasil foi determinado. A partir de amostras das cascas do caule e folhas de 10 indivíduos de Anadenanthera colubrina (Vell.) Brenam, Myracrodruon urundeuva (Engl.) Fr. All.
Julio Marcelino Monteiro   +5 more
doaj   +1 more source

Tiny predators avoid herbivorous caterpillar traces to prevent accidental predation

open access: yesEcosphere, Volume 17, Issue 4, April 2026.
Abstract We report the first example of predators having a strategy to avoid accidental predation by herbivorous insects. The predatory mites Neoseiulus womersleyi and Euseius sojaensis are smaller than 0.5 mm and lay eggs on plant leaf surfaces; thus, their immobile eggs would be incidentally consumed along with leaves by voracious lepidopteran ...
Shiori Kinto, Shuichi Yano
wiley   +1 more source

Evaluación del agregado de taninos en dietas de alimentación a corral de bovinos para carne

open access: yesSemiárida, 2020
El tratamiento con taninos condensados ha sido sugerido como recurso para reducir la degradabilidad ruminal de las proteínas de origen vegetal y mejorar la eficiencia de uso de las proteínas en las dietas de bovinos. El presente trabajo evaluó durante 92
O. S. Bessega   +2 more
doaj  

Development of Anti‐Inflammatory Extracellular Vesicles by Surface Expression of Syndecan‐4

open access: yesJournal of Extracellular Vesicles, Volume 15, Issue 4, April 2026.
ABSTRACT The biological functions of extracellular vesicles (EVs) depend on their cellular source. Further, different subpopulations of EVs from the same cells carry different cargo, but differences in their biological functions are less understood. We here identify a very small EV subpopulation released by HEK293F cells (miniEVs).
Lijuan Yu   +4 more
wiley   +1 more source

Compostos antioxidantes em frutos de acessos de caramboleira em diferentes ambientes de Pernambuco

open access: yesRevista Brasileira de Fruticultura, 2014
A polpa da carambola contém compostos químicos com propriedades antioxidantes importantes à saúde humana, contra o envelhecimento celular e a prevenção de doenças. Este trabalho objetivou avaliar o fruto de acessos de caramboleira quanto às concentrações
José Severino de Lira Júnior   +4 more
doaj   +1 more source

A Generalized Framework for Flow Resistance in Canopies and Granular Beds

open access: yesWater Resources Research, Volume 62, Issue 4, April 2026.
Abstract This study presents a generalized, theoretically grounded semi‐empirical framework for estimating flow resistance through canopies and granular beds, both of which are common in engineering and environmental applications. Derived from fundamental fluid mechanics principles, the proposed formulation significantly reduces reliance on empirical ...
Benjamin Tsai, Changhoon Lee
wiley   +1 more source

Flexible patchy vegetation in a meandering bend: Effect on main flow and dispersion processes

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
The presence of finite flexible and submerged vegetation patches in bends alters the typical curvature‐induced circulation motion and the streamwise velocity distribution, determining a fragmented flow patternThe lateral dispersion and the mass exchanges are strongly influenced by the vegetated patches and turbulent structures forming in patch‐adjacent
Donatella Termini, Nina Benistati
wiley   +1 more source

Tannins in Baccharis dracunculifolia (Asteraceae): effects of seasonality, water availability and plant sex Taninos em Baccharis dracunculifolia (Asteraceae): efeitos da sazonalidade, disponibilidade de água e sexo da planta

open access: yesActa Botânica Brasílica, 1999
Several ecological, genetic, and environmental factors are known to influence tannin concentration in plant tissues. In this study, the effects of seasonality, water availability, and sex of the plant on tannin concentration in the dioecious shrub ...
Mário M Espírito-Santo   +3 more
doaj   +1 more source

Field measurements and model predictions of turbulent kinetic energy in canopies of sparse vegetation under tidal flows

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 2, March 2026.
Abstract The presence of vegetation in aquatic environments alters hydrodynamics and sediment resuspension. A recent paradigm has suggested that turbulent kinetic energy (TKE) serves as a better predictor of sediment transport in aquatic canopies than bed shear stress.
Vinay Nelli   +4 more
wiley   +1 more source

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