Results 51 to 60 of about 753,577 (265)

Correlações entre algumas propriedades físicas, características químicas e anatômicas da madeira de Luehea divaricata Mart. Malvaceae (Tiliaceae). Correlations among some physical properties, chemical and anatomical features in the wood of Luehea divaricata Mart. Malvaceae (Tiliaceae). [PDF]

Revista do Instituto Florestal, 2010
Objetivou-se caracterizar a densidade básica, retrações lineares e volumétrica e teores de extrativos, lignlina e holocelulose, no sentido medula-casca da madeira de Luehea divaricata, bem como investigar as correlações existentes entre as ...
Eduardo Luiz LONGUI, Israel Luiz de LIMA, Francides Gomes da SILVA JÚNIOR, Itiberê Moura Sckerratt SUCKOW, Sandra Monteiro Borges FLORSHEIM   +4 more
doaj  

Variação radial da retratibilidade e densidade básica da madeira de Eucalyptus saligna Sm. Radial variation of shrinkage and specific gravity in Eucalyptus saligna Sm. wood

Revista Árvore, 2003
A ultra-estrutura e a composição química da madeira, bem como suas propriedades físicas e mecânicas, variam significativamente entre espécies, entre árvores de uma mesma espécie e, mesmo, entre diferentes partes de uma mesma árvore.
José Tarcísio da Silva Oliveira, José de Castro Silva   +1 more
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

Efecto del raleo en el crecimiento y algunas propiedades de la madera de Eucalyptus nitens en una plantación de 15 años

Maderas: Ciencia y Tecnología, 2014
El raleo tiene implicancias económicas y técnicas tanto para producción forestal como para la actividad industrial. En el presente estudio se realizó la evaluación de un ensayo de intensidad de raleo en E.
Sandro Díaz Bravo, Miguel Espinosa, Luis Valenzuela, Jorge Cancino, Jean P. Lasserre   +4 more
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Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

A densidade básica e característica anatômicas variam radialmente na madeira de Astronium graveolens Jacq. (Anacardiaceae). Basic density and anatomical features vary in the radial direction in the wood of Astronium graveolens Jacq. (Anacardiaceae). [PDF]

Revista do Instituto Florestal, 2011
Estudos sobre variações nas dimensões celulares de espécies arbóreas de clima tropical são escassos. Sendo assim, o objetivo deste trabalho foi caracterizar a variação da densidade básica e da anatomia no sentido radial da madeira de Astronium graveolens
Camila Moura SANTOS, Israel Luiz de LIMA, Eduardo Luiz LONGUI, Diego ROMEIRO, Antonio Carlos Scatena ZANATTO, Eurípedes MORAIS, Marcelo ZANATA, Sandra Monteiro Borges FLORSHEIM   +7 more
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IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

Molecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla, Christopher Dirks, Caroline Eiden, Sonja K. Fesenmayer, Femke M. Hormann, Yolande Klootsema, Ingrid Lilienthal, Si Min Zhang, Nikolas Herold, Sean G. Rudd   +9 more
wiley   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source

Variación radial y longitudinal de la densidad básica en árboles de Eucalyptus regnans de 16 años Radial and longitudinal basic density variation in 16 years old Eucalyptus regnans trees

Maderas: Ciencia y Tecnología, 2011
La variación radial y longitudinal de la densidad básica de la madera, a lo largo del fuste, fueron determinadas en árboles de una plantación de Eucalyptus regnans de 16 años, crecida en la Costa de la Provincia de Arauco, Chile.
Margarette Omonte, Luis Valenzuela
doaj  

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

Molecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic, Anne Nørremølle, Lilian Bomme Ousager, Lars van Brakel Andersen, Marie Louise Mølgaard Binderup, Mads Thomassen   +5 more
wiley   +1 more source