Configuration Factor C Factor
Mostrando 1-12 de 39 artigos, teses e dissertações.
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1. The influence of "C-factor" and light activation technique on polymerization contraction forces of resin composite
OBJECTIVES: This study evaluated the influence of the cavity configuration factor ("C-Factor") and light activation technique on polymerization contraction forces of a Bis-GMA-based composite resin (Charisma, Heraeus Kulzer). MATERIAL AND METHODS: Three different pairs of steel moving bases were connected to a universal testing machine (emic DL 500): groups
J. Appl. Oral Sci.. Publicado em: 2012-12
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2. Study of environment conditions of Arthrospira (Spirulina) platensis culture in tubular photobioreactor using fed-batch process with urea as nitrogen source / Estudo das condições ambientais no cultivo de Arthrospira (Spirulina) platensis em fotobiorreator tubular por processo descontínuo alimentado com uréia como fonte de nitrogênio
The cyanobacterium Arthrospira (Spirulina) platensis, ones of the most studied and cultivated photosynthetic microorganisms in the planet, has a unique biomass composition that includes: high protein content, polyunsaturated fat acids, natural pigments and other substances of interest in food, pharmaceutical and cosmetic industries. Recent studies demonstrat
Publicado em: 2010
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3. Concentration of lycopene from watermelon juice by membrane separation processes / Concentração de licopeno de suco de melancia através de processos de separação por membranas
Watermelon (Citrullus lanatus var lanatus) is a fruit originally from Africa which has been object of scientific interest due its high lycopene content. To increase your marketing potential the watermelon has to be processed either as a fresh single strength juice or as a concentrated or pasteurized juices or still dried in order to produce a stable powder.
Publicado em: 2009
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4. EFEITO DA CAMADA ELÁSTICA E DA CONFIGURAÇÃO CAVITÁRIA SOBRE A RESISTÊNCIA DA UNIÃO COMPÓSITO/DENTINA
O objetivo deste estudo in vitro foi avaliar o efeito do fator de configuração cavitária (fator-C) e do tipo de camada elástica sobre a resistência da união compósito-dentina. O esmalte oclusal de 50 molares humanos recém extraídos foi removido para expor uma superfície plana de dentina. As superfícies foram abrasionadas e planificadas com lixas d
Publicado em: 2007
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5. Cuidando de quem cuidava: as transformações familiares diante de condições crônicas incapacitantes na meia-idade
Due to the increase of the chronic illness and the medical resources that generate survivors of acute physical illness, the purpose of this research is to understand the impact of chronic illness situations on middle-age, especially in cases of incapacitation that requires a familiar functioning reorganization. Because of the complexity of these cases, the c
Publicado em: 2006
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6. Evaluation of procedures for agricultural samples preparation for multielemental determination by inductively coupled plasma optical emission spectrometry. / Avaliação de procedimentos para preparo de amostras agronômicas visando determinação multielementar por espectrometria de emissão ótica com plasma induzido.
Sample preparation was always considered a limiting factor for sample throughput in the analytical sequence due to its high time consumption and great probability for error insertion in the results. Therefore, purposes to generate lower analysis time and, mainly, to make sample handling a feasible process are readily wished. Two procedures for preparation of
Publicado em: 2004
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7. Estudo dos efeitos do iniciador n-Butil LÃtio, do agente de terminaÃÃo 1,2-Butadieno e da temperatura sobre a polimerizaÃÃo do 1,3-Butadieno em solvente apolar
The synthetic rubber production industries form one of the important sectors in petrochemical industry. The polibutadiene, one of the products originated from this sector, is the synthetic elastomer second-most produced worldwide. However, it has been notice that, regardless of the many papers already published about this subject, there are still many contro
Publicado em: 2003
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8. Uma metodologia de planejamento da expansÃo da transmissÃo baseada em trade-off e indicador de mÃrito econÃmico
Since the last ten years the electrical industry have been experiencing an intensive restructuring process worldwide. This process varies from country to country in accordance with their characteristics. However a common objective has been identified: the increase in terms of efficiency through the introduction of competition in the energy production and tra
Publicado em: 2000
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9. The genetic study of sterigmatocystin production in Aspergillus nidulans. / Estudo genético da produção de esterigmatocistina em Apergillus nidulans.
Sterigmatocystin (ST) is a polyketide produced by different species of Aspergillus as well as by other fungus genera such as Bipolaris and Chaetomium. This toxin is characterized as a bifuranoxanthone, whose molecular formula is C18H12O6 and which is frequently found as a contaminant in several food products such as oil-seed grains and cereals. It has carcin
Publicado em: 1999
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10. An introduction to the methodology of structure determination by single crystal x-ray diffraction: applications to some complexes of lanthanides and transition metals with organic ligands / Introdução aos métodos de determinação de estruturas por difração de raios-X em monocristais: aplicação a alguns complexos de lantanídeos e metais de transição com ligantes orgânicos
The crystal structure of the complexes Ln(ClO4)3.6[PONH2(C6H5)2] where Ln=Eu, La, Cu[NH2(CH3)2CCO2]2, NiBr2.4[AsO(C6H5)3].8H2O (green), NiBr2.4[AsO(C6H5)3.1,5(CH3C6H5).H2O (orange) and of the ligand PONH2(C6H5)2 have been determined by X-ray diffraction. The complexes involving lanthanide ions refined to final R factors of R(Eu)=0.125 and R(La)=0.133 and the
Publicado em: 1983
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11. Citrobacter O-antigens: structure of the O-antigenic polysaccharide from Citrobacter sp. 396.
The structure of the O-specific polysaccharide moiety of the lipopolysaccharide from Citrobacter 396 was elucidated by composition, methylation, and periodate oxidation studies. The repeating unit consists of four 2-linked mannoses and one 3-linked N-acetylglucosamine. One of the mannose units is substituted at C3 with alpha-glucose, and one is substituted a
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12. Motility and Adhesiveness in Human Neutrophils: EFFECTS OF CHEMOTACTIC FACTORS
Human peripheral blood neutrophils (PMN) obtained from healthy adults were examined in vitro with techniques adapted to assess the effects of chemotactic factors (CF) on cellular configuration and adhesiveness. The results were compared with those that use certain conventional techniques for assessing chemotaxis and chemokinesis. Exposure of PMN to N-formyl-