Cellular Composites
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Alumina applied in bone regeneration: Porous α-alumina and transition alumina
Abstract Alumina is a polymorphic bioceramic that has been extensively investigated for application in bone regeneration. Dense α-alumina has been considered a suitable biomaterial for dental and orthopedic implants due to its superior mechanical properties. However, its use is limited due to its high inertia in a biological environment. Recent investigatio
Cerâmica. Publicado em: 2022
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2. Comparative study between poly(ethylene-co-vinyl acetate) - EVA expanded composites filled with banana fiber and wood flour
The objective of this study is to develop expanded composites of poly(ethylene-co-vinyl acetate) (EVA) filled with two vegetable reinforcements (banana fiber or wood flour) as well as to evaluate the influence of the type, size and concentration of these reinforcements on the cell growth and their morphological, mechanical, thermal and physical properties. T
Mat. Res.. Publicado em: 2014-12
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3. Caracterização de enzimas bacterianas de degradação de hidrocarbonetos aromáticos policíclicos / Characterization of bacterial enzymes of aromatic polycyclic hydrocarbons degradation
The polycyclic aromatical hydrocarbons (HAPs) are mutagenic and carcinogenic composites to the human beings and the animals that are introduced in the environment in great amounts, to its activities related to the extraction, the transport, the refining, the transformation and the use of the oil and of its derivatives. The enzyme use for the biodegradation H
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2008
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4. Obtenção e caracterização de compósitos celulares à base de resíduo de SBR proveniente da indústria calçadista
Rubber compositions of copoly(butadiene-styrene) (SBR) with incorporation of an expanded residue from shoe industry (SBR scraps) were developed aiming later application to obtain cellular composites.n The amounts of the incorporated SBR-r varied from 0 to 30 phr. The SBR scraps were ground and the obtained powder (SBR-r) was characterized by chemical composi
Publicado em: 2007
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5. Bone marrow stroma modulates the expression of several drug resistance/sensitivity genes in pediatric acute limphoblastic leukemia / O estroma da medula ossea e a sua influencia na expressão de genes de resistencia e sensibilidade a quimioterapicos na leucemia linfoide aguda (LLA) pediatrica
The intrinsic or acquired chemotherapy resistance composites one of the most important causes of failures in the treatment of pediatric ALL. The ALL and bone marrow microenvironment nteraction contributes for the proliferation and resistance to the chemotherapy regimen of leukemic cells probably through a great variety of cellular mechanisms, including incre
Publicado em: 2007
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6. Apoptose induzida por extrato aquoso de Pteridium aquilinum em células de glândula submandibular humana (HSG) e de epitélio bucal (OSCC-3)
The bracken Pteridium aquilinum is considered one of the most important toxic plants, not only for its extensive geographic distribution, but also for provoking, in different animal species that use it as food, severe poisoning and the development of tumors in the digestory and urinary tracts. Moreover, epidemiologic studies have related the high incidence o
Publicado em: 2006
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7. Caracterização das sementes de seis especies de theobroma em relação ao theobroma cacao L. / Characterization of the seeds of six species of Theobroma in relation to the Theobroma cacao L.
Many investigations on the cellular reserves within the cotyledon mesophyll of the Theobroma have been carried out on Theobroma cacao seeds, the source of raw for the production of chocolate. These studies demonstrated structural cellular changes due to fermentation, drying, and roasting processes during chocolate production. Recently the seeds of the T. gra
Publicado em: 2004
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8. Distinct ontogenic and regional expressions of newly identified Cajal-Retzius cell-specific genes during neocorticogenesis
Cajal-Retzius (CR) cells are early-generated transient neurons and are important in the regulation of cortical neuronal migration and cortical laminar formation. Molecular entities characterizing the CR cell identity, however, remain largely elusive. We purified mouse cortical CR cells expressing GFP to homogeneity by fluorescence-activated cell sorting and
National Academy of Sciences.
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9. The making of the architecture of the plant cell wall: How cells exploit geometry
Cell wall deposition is a key process in the formation, growth, and differentiation of plant cells. The most important structural components of the wall are long cellulose microfibrils, which are synthesized by synthases embedded in the plasma membrane. A fundamental question is how the microfibrils become oriented during deposition at the plasma membrane. T
The National Academy of Sciences.