Data Aggregation
Mostrando 13-24 de 449 artigos, teses e dissertações.
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13. Molecular detection of virulence factors among food and clinical Enterococcus faecalis strains in South Brazil
The present report aimed to perform a molecular epidemiological survey by investigating the presence of virulence factors in E. faecalis isolated from different human clinical (n = 57) and food samples (n = 55) in Porto Alegre, Brazil, collected from 2006 to 2009. In addition, the ability to form biofilm in vitro on polystyrene and the β-haemolytic and gela
Braz. J. Microbiol.. Publicado em: 18/04/2014
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14. Scale of operation, allocative inefficiencies and separability of inputs and outputs in agricultural research
In this article we consider some properties of concern for research production at Embrapa. We apply statistical tests to address questions related to the scale of operation, the presence of allocative inefficiencies and separability of inputs and outputs. The production process is assessed by nonparametric methods with the use of Data Envelopment Analysis. T
Pesqui. Oper.. Publicado em: 25/10/2013
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15. Demand aggregation and credit risk effects in pooled procurement: evidence from the Brazilian public purchases of pharmaceuticals and medical supplies
Pooled procurement has an important role in reducing acquisition prices of goods. A pool of buyers, which aggregates demand for its members, increases bargaining power and allows suppliers to achieve economies of scale and scope in the production. Such aggregation demand e ect lowers prices paid for buyers. However, when a buyer with a good reputation for pa
Publicado em: 12/09/2012
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16. Um processo de aquisição e mapeamento de dados para as bacias sedimentares marginais brasileiras
Finding oil is a hard task that requires large amounts of information and resources. Along decades of research, geoscientists from Petrobras have accumulated great amout of data. Therefore, in petroleum geology other sources of important data are generally dispersed and have many forms of representation. This Master Thesis reports the creation of a database
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/03/2012
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17. Efeito da carga dos lipídios na interação do BP100 em modelos de membrana / Charge effect of lipids in interaction of BP100 and model membranes
Antimicrobial peptides (AMPs) have been a promising alternative therapy to antibiotics. These molecules, consisting of less than 80 amino acids, with different structures and amino acids composition, have amphipathic character which gives them the ability to act on lipid bilayers. They act, by different mechanisms, over bacteria to mammal cells. The AMPs are
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/02/2012
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18. Synthesis and characterization of nanocrystalline hydroxyapatite gel and its application as scaffold aggregation
The sol-gel process is a technique used to synthesize materials from colloidal suspensions and, therefore, is suitable for preparing materials in the nanoscale. In this work hydroxyapatite was used due to its known properties in tissue engineering. Hydroxyapatite Ca10(PO4)6(OH)2 is a bioactive ceramic which is found in the mineral phase of bone tissue and is
Mat. Res.. Publicado em: 02/10/2012
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19. Utilização de data warehouses para gerenciar dados de redes de sensores sem fio que monitoram polinizadores. / The use of data warehouse to manage data from wireless sensors network that monitor pollinators.
This work aims at applying the concept of data warehouse for data aggregation, management and presentation of data collected by Wireless Sensor Networks that monitor pollinators. Scientific experiments using such networks to monitor habitat generate a volume of data that must be addressed and analyzed, so that they can help researchers and others interested
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/08/2011
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20. Análise da atividade antimicrobiana dos óleos de dopaíba (C opaifera officinalis ) e da melaleuca ( Melaleuca alternifolia ) sobre Fusobacterium nucleatum e Por phyromonas gingivalis: determinação das concentrações inibitórias e bactericidas mínimas e efeito de concentrações subinibitórias sobre a agregação / Antimicrobial activity of copaiba (Copaifera officinalis) and melaleuca (Melaleuca alternifolia) oils on Porphyromonas gingivalis and Fusobacterium nucleatum: determination of minimum inhibitory and bactericidal concentrations and subinibitory effect on the aggregation
The oral cavity is a complex microbial habitat that has more than 500 bacterial species as components of the microbiota. Periodontal health is established when there is equilibrium between pathogens and host. The chlorhexidine digluconate is one of the most commonly used oral antibiotics, however, this substance has been associated with some undesirable side
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/08/2011
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21. Estudos funcionais da proteína reguladora humana Ki-1/57 e seus parceiros de interação / Functional studies of the human regulatory protein Ki-1/57 and its interaction partners
The protein Ki-1/57 was discovered through cross reactivity of the monoclonal antibody Ki-1 in cells of Hodgkin lymphoma. Previously studies demonstrated that Ki-1/57 interacts with RACK-1 protein, undergoes phosphorylation by PKCs and methylation by PRMT1, an arginine methyltransferase that modulates several RNA binding proteins. Studies have shown that Ki-
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/07/2011
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22. Towards a phylogenetic classification of Lychnophorinae (Asteraceae: Vernonieae) / Rumo a uma classificação filogenética de Lychnophorinae (Asteraceae: Vernonieae)
A phylogenetic hypotesis of American Vernonieae based on three molecular regions (ITS, ndhF, rpl32-trnL) and on a morphological dataset reveals the existence of four main lineages in the group. Three of these lineages correspond, with a few adjustments, to subtribes Chrestinae, Lychnophorinae and Vernoniiae. The last lineage is mainly composed of Lepidaploin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/07/2011
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23. Influence of pH of colloidal suspension on the electrical conductivity of SnO2 thin films deposited via Sol-Gel-Dip-Coating
Tin dioxide (SnO2) thin films are deposited by the dip-coating technique from colloidal suspensions prepared with distinct pH through the sol-gel method. The decrease of the pH contributes to the destruction of an electrical layer adjacent to particles in solution, leading to a high degree of aggregation among these particles due to the generation of cross-l
Materials Research. Publicado em: 04/03/2011
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24. CCN2/CTGF silencing blocks cell aggregation in embryonal carcinoma P19 cell
Connective tissue growth factor (CCN2/CTGF) is a matricellular-secreted protein involved in extracellular matrix remodeling. The P19 cell line is an embryonic carcinoma line widely used as a cellular model for differentiation and migration studies. In the present study, we employed an exogenous source of CCN2 and small interference RNA to address the role of
Braz J Med Biol Res. Publicado em: 2011-03