Results 71 to 80 of about 93,832 (177)

Calibração de modelo para a simulação de vazão e de fósforo total nas sub-bacias dos Rios Conrado e Pinheiro - Pato Branco (PR) Model calibration for flow rate and total phosphorous export simulations in the watersheds of the rivers conrado and Pinheiro, Pato Branco (PR)

open access: yesRevista Brasileira de Ciência do Solo, 2010
O desenvolvimento de modelos hidrológicos capazes de predizer o impacto de fontes difusas de poluição e do uso e ocupação do solo na qualidade das águas superficiais e subterrâneas tem auxiliado o estudo de agroecossistemas.
Valmir Baltokoski   +3 more
doaj   +1 more source

Cyotoxicity of Etidronate as an Endodontic Chelator Against Periodontal Ligament Fibroblast

open access: yesAustralian Endodontic Journal, Volume 52, Issue 1, Page 84-91, April 2026.
ABSTRACT Etidronic acid (HEBP) causes fewer alterations in dentine and can be used mixed with sodium hypochlorite during root canal preparation. This study investigated the cytotoxicity effects of the HEDP and EDTA on human periodontal ligament fibroblast cells. Primary culture was established from human periodontal ligament tissue of one donor and was
Bruno Vila Nova de Almeida   +6 more
wiley   +1 more source

Modulatory Effects of Cirsimarin on Lung Cancer A549 Cells Migration in 2D and 3D Cultures Involves Transcriptional Regulation of Metalloproteinases

open access: yesJournal of Biochemical and Molecular Toxicology, Volume 40, Issue 3, March 2026.
In 2D culture, the cirsimarin (i) decreased cell viability in both assays, (ii) induced apoptosis, (iii) reduced clonogenicity, (iv) prevented cell migration, (v) induced DNA damage, and (vi) negatively modulated gene expression. In the 3D model, reductions in spheroid viability, area, and cell migration were also observed.
Anna Gabriele Prado dos Santos   +10 more
wiley   +1 more source

NOVOS PARASITÓIDES EM OVOS DE Dirphia Araucariae (LEPIDOPTERA, ATTACIDAE) NEW PARASITOIDS IN EGGS OF Dirphia araucariae (LEP.; ATTACIDAE)

open access: yesPesquisa Agropecuária Tropical, 2007
<!-- @page { margin: 2cm } --> <p class="western" align="justify">Foram observados novos parasitóides nos ovos de <em>Dirphia</em> <em>araucariae</em> Jones, 1908 (<em>Lepidoptera</em>, <em>Attacidae ...
Jácomo Divino Borges
doaj   +1 more source

Abundance and Seasonal Dynamics of Guiana Dolphins (Sotalia guianensis) in Southern Brazilian Estuarine and Adjacent Coastal Waters

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Estimating population parameters is crucial for understanding species dynamics and assessing anthropogenic impacts, thereby supporting conservation efforts. We evaluate key population parameters—group structure, abundance and capture–recapture probabilities—of the Guiana dolphin in the Paranaguá Estuarine Complex and adjacent coastal waters ...
Stephane P. G. de Moura   +3 more
wiley   +1 more source

Efeitos da poluição por petróleo na estrutura da folha de Podocarpus lambertii Klotzsch ex Endl., Podocarpaceae Effects of oil pollution on leaf structure of Podocarpus lambertii Klotzsch ex Endl., Podocarpaceae

open access: yesActa Botânica Brasílica, 2006
Podocarpus lambertii, popularmente conhecida como pinheiro-bravo é uma Podocarpaceae típica da região Sul do Brasil, família que se distingue de outras coníferas por possuir uma estrutura de suporte para o óvulo denominada "epimatium".
Leila Teresinha Maranho   +4 more
doaj   +1 more source

From Local Biodiversity to Global Food Security: Antioxidant Evidence of Unconventional Edible Plants (2020–2025)

open access: yesJournal of Food Process Engineering, Volume 49, Issue 2, February 2026.
This scoping review (2020–2025) compiles validated evidence on the antioxidant potential of unconventional edible plants (PANCs). Thirty species showed high phenolic content and strong radical‐scavenging activity, reinforcing their role as natural antioxidants and sustainable alternatives to synthetic additives within biodiversity‐based food systems ...
Nathália Letícia Hernandez Brito   +8 more
wiley   +1 more source

Fenologia reprodutiva da Araucaria angustifolia no Brasil

open access: yesPesquisa Florestal Brasileira, 2003
O estudo da fenologia reprodutiva indica a proporção de indivíduos que contribuem efetivamente na reprodução, além de oferecer informações básicas para a conservação e melhoramento genéticos florestais.
Valderês Aparecida de Sousa   +1 more
doaj  

Distribuição natural e habitat da araucária frente às mudanças climáticas globais

open access: yesPesquisa Florestal Brasileira, 2017
A araucária (Araucaria angustifolia (Bertol.) O. Kuntze.), conhecida como pinheiro-do-paraná, é uma espécie florestal nativa do Brasil, adaptada às regiões serranas frias e úmidas do sul e do sudeste do país e torna-se vulnerável diante das mudanças ...
Marcos Silveira Wrege   +11 more
doaj   +1 more source

Perdas na colheita mecanizada da soja ( Glycine Max (L.) Merril), no município de Maringá, Estado do Paraná - DOI: 10.4025/actasciagron.v25i2.1995

open access: yes, 2003
The profile of the mechanical soybean harvest was evaluated in Maringa , State of Parana , determining pre-harvest losses, header losses, combining total losses, crop total losses, the amount of MOG (other material different from the grain) and the ...
Raimundo Pinheiro Neto, Wanderley Troli
semanticscholar   +1 more source

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