Results 81 to 90 of about 280,111 (225)

Activation of Ras-ERK pathway by Fgf8 and its downregulation by Sprouty2 for the isthmus organizing activity [PDF]

, 2008
In the previous studies, we showed that strong Fgf8 signaling activates the Ras-ERK pathway to induce cerebellum. Here, we show importance of negative regulation of this pathway.
Asuka Suzuki-Hirano, Harukazu Nakamura, Tatsuya Sato   +2 more
core   +1 more source

Move beyond free radical theory of aging

iMetaOmics, EarlyView.
Free radicals play a dual, dose‐dependent role in aging. Low levels activate the key sensor adenosine 5'‐monophosphate‐activated protein kinase (AMPK), promoting cell survival mechanisms like autophagy and enhancing mitochondrial health. High levels, however, push AMPK to initiate cell death pathways, such as apoptosis. This positions AMPK as a central
Xiaofeng Dai, Meilan Hu, Ruohan Lyu
wiley   +1 more source

Qualidade de ovos comerciais submetidos a diferentes condições de armazenamento

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2011
Verificou-se a qualidade interna de 1440 ovos de consumo, provenientes de galinhas de linhagem comercial. O delineamento foi inteiramente ao acaso, em arranjo fatorial 2x2x15, com duas diferentes idades das galinhas (33 e 60 semanas), duas condições de ...
T.C. Figueiredo, S.V. Cançado, R.P. Viegas, I.O.P. Rêgo, L.J.C. Lara, M.R. Souza, N.C. Baião   +6 more
doaj   +1 more source

Digital Three-Dimensional Atlas of Quail Development Using High-Resolution MRI [PDF]

, 2007
We present an archetypal set of three-dimensional digital atlases of the quail embryo based on microscopic magnetic resonance imaging (µMRI). The atlases are composed of three modules: (1) images of fixed ex ovo quail, ranging in age from embryonic day 5
Fraser, Scott E., Jacobs, Russell E., Keough, Lindsey, Lansford, Rusty, Martin, Melanie, Ruffins, Seth W., Truong, Salina   +6 more
core   +3 more sources

Exploring the Impact of Polystyrene Microplastic Beads on Male Gonads of the Marine Mussel, Mytilus galloprovincialis

Environmental Toxicology, EarlyView.
ABSTRACT Plastic, with its remarkable versatility and numerous applications, has greatly benefited humanity. However, its extreme resistance to natural degradation means it persists in the environment for long periods, causing global environmental problems.
Teresa Chianese, Mariachiara Galati, Tiziana Cappello, Maria Maisano, Gennaro Lettieri, Carmela Marinaro, Marina Piscopo, Gianluca Fasciolo, Carlos Gravato, Gaetana Napolitano, Giulia Paolella, Annamaria Locascio, Rosaria Scudiero, Luigi Rosati   +13 more
wiley   +1 more source

Violencia ginecológica-obstétrica

Psicosomática y Psiquiatría, 2023
Serena Brigidi, Ana Polo, Desirée Mena-Tudela, Cristina Medina-Pradas   +3 more
doaj   +1 more source

Review of the breeding status of birds in Rio Grande do Sul, Brazil

Iheringia: Série Zoologia, 2013
Information on the breeding biology of birds is essential for improving avian life-history theory and implementing sound management and conservation actions for these organisms.
Giovanni N. Maurício, Glayson Ariel Bencke, Márcio Repenning, Diogenes Borges Machado, Rafael A. Dias, Leandro Bugoni   +5 more
doaj   +1 more source

Polyaniline as a dual flame retardant and electrostatic dissipative additive in polyethylene nanocomposites

Journal of Vinyl and Additive Technology, Volume 31, Issue 2, Page 339-355, March 2025.
Effecft of co‐doping polyaniline with phosphoric acid and phytic acid on the heat release rate of polyethylene. Abstract Polyolefins, such as polyethylene (PE), are highly flammable and electrically insulative, limiting their applicability. The study explored the flame‐retardancy and electrical conductivity of PE/polyaniline (PE/PANI) nanocomposites ...
Akeem Adisa, Joseph K. O. Asante, Vincent O. Ojijo, António B. Mapossa, Washington Mhike   +4 more
wiley   +1 more source

Efeitos das condições ambientais no período entre a postura e o armazenamento de ovos de matrizes pesadas sobre o rendimento de incubação Effect on time between oviposition and the beginning of cool storage on hatchability of broiler breeder eggs

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2006
Avaliou-se o efeito das condições ambientais no período entre a postura e o armazenamento de ovos sobre o rendimento de incubação de 2.742 ovos de matrizes pesadas da linhagem Ross com 31 semanas de idade.
M.A. Fiuza, L.J.C. Lara, C.A.L. Aguilar, B.R.C. Ribeiro, N.C. Baião   +4 more
doaj   +1 more source

Fazer OVO

Arte & Ensaios
Este ensaio pensa a ideia de uma ementa como escultura e a sala de aula como ateliê a partir da experiência do OVO, sigla para Ovulário de Vacilação Onto-Epistêmica, conduzido na pós-graduação do departamento de filosofia da PUC-Rio por uma artista-etc. no segundo semestre de 2024.
openaire   +1 more source