Hob
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Calcification in vitro of biomineralizated nanohydroxyapatite/superydrophilic vertically aligned multiwalled carbon nanotube scaffolds
Nanocomposites based on superhydrophilic vertically aligned multi-walled carbon nanotubes (VAMWCNT-O2) and nanohydroxyapatite (nHAp) are of great interest in bone regenerative medicine. The biomineralization using simulated body fluid (SBF) has been extensively studied to evaluate the bioactivity of biomaterials. Thus, the combination of nHAp and VAMWCNT-O2
Mat. Res.. Publicado em: 25/02/2013
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2. Desgaste de Fresa Caracol na usinagem de engrenagens
Um dos métodos de fabricação de engrenagem em grande escala é baseado na usinagem por ferramentas de corte denominadas Cortador Hob ou Fresa Caracol. Esse método permite agilidade e precisão. A máquina e a ferramenta destinadas a esse processo são para aplicação específica na fabricação de dentados em engrenagens e eixos, fazendo-se necessário
Publicado em: 2011
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3. Implantação de protocolo de prevenção da pneumonia associada à ventilação mecânica : impacto do cuidado não farmacológico
Contextualização: Na última década, houve um grande crescimento de ações de melhoria da qualidade assistencial e de promoção da segurança do paciente, com objetivo de diminuir a ocorrência de desfechos preveníveis, como a pneumonia associada à ventilação mecânica (PAVM). Embora existam várias diretrizes clínicas, ainda não há evidências s
Publicado em: 2010
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4. Adsorção de fibronectina a arcabouços de polihidroxibutirato aplicáveis à engenharia óssea
Fibronectina sérica humana foi adicionada à superfície de arcabouços de polihidroxibutirato (PHB) a fim de otimizar a adesão de osteoblastos humanos (HOB). Visando a criar sítios para a imobilização de fibronectina (FN), os arcabouços foram previamente tratados por meio de reação com etilenodiamina. O tratamento modificou a morfologia e a composi�
Polímeros. Publicado em: 2009-06
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5. Material properties and in vitro biocompatibility of a newly developed bone cement
In this study mechanical properties and biocompatibility (In Vitro) of a new bone cement were investigated. A new platform technology named COOL is a variable composite of dissolved, chemically modified PMMA and different bioceramics. COOL cures at body temperature via a classical cementation reaction. Compressive strengths ranging from 3.6 ± 0.8 to 62.8 ±
Materials Research. Publicado em: 2009
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6. Estados de humor de atletas da seleção brasileira de vela nos Jogos Pan Americanos / Mood states in Brazilian sailing team at pan-american games
Estados de humor em níveis considerados adequados contribuem sobremaneira para o melhor rendimento esportivo. O objetivo da pesquisa foi caracterizar os atletas da seleção brasileira de vela e avaliar os estados de humor durante os Jogos Pan-americanos. Trata-se de uma pesquisa descritiva do tipo correlacional que utilizou como instrumentos o Questionári
Publicado em: 2008
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7. Monitoramento do corte de dentes de engrenagem com ferramenta hob via corrente eletrica do motor da maquina
This work is about the monitoring of the electrical current of the machine tool motor in production floor, used in cutting of gear teeth with HOB tools, aiming to verify the relationship between the cutter wear and electrical current. Based on this, the purpose is to check the feasibility of determining the moment to replace the tool using the value of the m
Publicado em: 1995
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8. Phosphorylation of the c-Fos and c-Jun HOB1 motif stimulates its activation capacity.
The c-Fos and c-Jun proteins bind an AP1 site and activate transcription synergistically. These two proteins have a common activation domain which has two co-operating motifs, HOB1 and HOB2. The HOB1 motif of c-Jun includes S73 which is required for Ha-Ras-induced super-activation and phosphorylation by MAP kinase-like enzymes. Since c-Fos HOB1 has a conserv
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9. An inhibitor domain in c-Fos regulates activation domains containing the HOB1 motif.
The c-Fos protein has three activation modules at its C-terminus, two of which contain motifs (HOB1 and HOB2) which are also present in the activation domains of c-Jun. Here we show the existence of two additional activation modules at the N-terminus of c-Fos, one of which contains a second HOB1 motif (HOB1-N). The N-terminus also contains an inhibitor domai
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10. Human osteoblasts in vitro secrete tissue inhibitor of metalloproteinases and gelatinase but not interstitial collagenase as major cellular products.
Human osteoblast cultures (hOB) were examined for the production of interstitial collagenase, tissue inhibitor of metalloproteinases (TIMP), and gelatinolytic enzymes. Cells were isolated by bacterial collagenase digestion of trabecular bone (vertebra, rib, tibia, and femur) from 11 subjects (neonatal to adult). Confluent cultures were exposed to phorbol 12-
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11. Parental strand recognition of the DNA replication origin by the outer membrane in Escherichia coli.
The outer membrane of Escherichia coli binds the origin of DNA replication (oriC) only when it is hemimethylated. We report here the results of a footprinting analysis with the outer membrane which demonstrate that its interaction with oriC occurs mainly at the left moiety of the minimal oriC, where 10 out of 11 Dam methylation sites are concentrated. Two re
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12. Connexin43 mediates direct intercellular communication in human osteoblastic cell networks.
We have examined cell coupling and expression of gap junction proteins in monolayer cultures of cells derived from human bone marrow stromal cells (BMC) and trabecular bone osteoblasts (HOB), and in the human osteogenic sarcoma cell line, SaOS-2. Both HOB and BMC cells were functionally coupled, since microinjection of Lucifer yellow resulted in dye transfer