Presence Plus Model
Mostrando 1-12 de 102 artigos, teses e dissertações.
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1. Mix design formulation range for metakaolin-based geopolymer synthesis
Abstract This article presents a range of mix design formulations to obtain metakaolin-based geopolymer synthesis. Geopolymer samples were synthesized from metakaolin, a 10 M sodium hydroxide solution, and alkaline sodium silicate. These three components were mixed in different proportions to form a paste which was molded in a cylindrical shape, set at room
REM - International Engineering Journal. Publicado em: 2022
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2. COMPETIÃÃO TRIBUTÃRIA VERTICAL NO BRASIL: EVIDÃNCIAS EMPÃRICAS PARA ICMS X IPI NO PERÃODO DE 1995 A 2009 / VERTICAL TAX COMPETITION IN BRAZIL: EVIDENCE EMPIRICAL TO X ICMS IPI THE PERIOD 1995 TO 2009
The main objective of this study is quantify the impact caused by changes in federal tax on the tax policy of the states, considering the presence of horizontal tax competition between states. In federal systems, where various levels of government operate simultaneously in the same tax regime, setting tax rates on the same basis of taxation, there may be the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/06/2012
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3. Estudo da atividade tipo-ansiolítica das folhas de Pimenta pseudocaryophyllus (Gomes) L.R. Landrum - Myrtaceae / Anxiolity - like activity of the leaves of Pimenta pseudocaryophyllus (Gomes) L.R. Landrum - Myrtaceae
Pimenta pseudocaryophyllus, popularly known as Craveiro, is the only species in this genus native to the cerrado of Brazil. Ethnopharmacological studies revealed medicinal use of P. pseudocaryophyllus extracts in treating menstrual and digestive problems as well as emotional tension in the form of soothing tea among other therapeutic applications in Brazilia
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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4. Qualitative SEM/EDS analysis of microleakage and apical gap formation of adhesive root-filling materials
OBJECTIVE: The aim of this study was to compare the correspondence between gap formation and apical microleakage in root canals filled with epoxy resin-based (AH Plus) combined or not with resinous primer or with a dimethacrylate-based root canal sealer (Epiphany). MATERIAL AND METHODS: Thirty-nine lower single-rooted human premolars were filled by the later
Journal of Applied Oral Science. Publicado em: 2012-06
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5. Presença plus : modelo de identificação de presença social em ambientes virtuais de ensino e aprendizagem
Este trabalho de tese apresenta o Modelo Presença Plus (PPlus) para identificação de pistas textuais denotadoras de presença social em interações discursivas feitas por alunos em fóruns e chats educacionais. O grau de presença social (PS) é um indicativo de como os sujeitos interagem entre si e com o ambiente de aprendizagem; sendo considerado, na l
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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6. Caracterização estrutural e eletrônica da zircônia pura e com defeitos e impurezas / Structural and electronic characterization of zirconia, pristine and with impurities
In this investigation we studied the electronic properties and the structural stabilities of zirconia (ZrO2), as well as oxygen vacancy and Ce substitutional impurity. The investigations were carried by computational simulations using ab initio methods, based on the density functional theory and the APW + lo (Aumengted Plane Waves plus local orbitals) method
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/12/2011
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7. Behavioral deficits in sepsis-surviving rats induced by cecal ligation and perforation
Sepsis and its complications are the leading causes of mortality in intensive care units, accounting for 10-50% of deaths. Intensive care unit survivors present long-term cognitive impairment, including alterations in memory, attention, concentration, and/or global loss of cognitive function. In the present study, we investigated behavioral alterations in se
Publicado em: 2010
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8. Photodynamic therapy effect in carious bovine dentin : an in vitrostudy / Estudo da ação antimicrobiana da terapia fotodinamica sobre lesões de carie produzidas in vitro na dentina de dentes bovinos
Photodynamic therapy (PDT) is a technique that consists in the activation of certain photosensitizers by light in the presence of tissue oxygen, resulting in the production of reactive radicals capable of inducing cell death. In this context, this therapy may become a suitable approach to disinfect the dentin tissue during the caries treatment, and reduce th
Publicado em: 2010
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9. STATISTICAL CONTROL OF MULTIPLE STREAM PROCESS / CONTROLE ESTATÍSTICO DE PROCESSOS MULTICANAL
In a multiple stream process (MSP), a same quality variable is measured in several streams in parallel. The first tool proposed for monitoring MSPs was the Group Control Chart (GCC) by Boyd (1950). These schemes are recommended in textbooks and guides as Pyzdek (1992) and Montgomery (until 3rd edition, 1997). Its efficiency is impaired by the presence of cro
Publicado em: 2010
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10. Efficacy and safety of low-dose pentavalent antimonial for treatment of cutaneous leishmaniasis by Leishmania (Viannia) braziliensis in Bahia, Brazil: a randomized clinical trial / Eficácia e segurança da dose baixa de antimonial pentavalente no tratamento da leishmaniose cutânea por Leishmania (Viannia) braziliensis em área endêmica da Bahia, Brasil : ensaio clínico randomizado
A randomized open-label clinical trial was conducted to assess the efficacy and safety of an intravenous dose of 5 mg/kg/day antimony-N-methyl-glucamine for 20 days compared with the conventional dose of 15mg/kg/day for 20 days for treatment of cutaneous leishmaniasis (CL) associated with L. (V.) braziliensis infection. This trial was registered with clinica
Publicado em: 2009
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11. Behavioral deficits in sepsis-surviving rats induced by cecal ligation and perforation
Sepsis and its complications are the leading causes of mortality in intensive care units, accounting for 10-50% of deaths. Intensive care unit survivors present long-term cognitive impairment, including alterations in memory, attention, concentration, and/or global loss of cognitive function. In the present study, we investigated behavioral alterations in se
Brazilian Journal of Medical and Biological Research. Publicado em: 2007-06
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12. The rattlesnake Crotalus durissus terrificus (Viperidae: Crotalinae) as an experimental model to study the involvement of peptidases in the survival of spermatozoids / A cascavel Crotalus durissus terrificus (Viperidae: Crotalinae) como modelo experimental para o estudo do envolvimento de peptidases na sobrevida de espermatozóides
In the rattlesnake Crotalus durissus terrificus occurs the long-term sperm storage (LTSS), in the female tract, during the interval between mating (autumn) and ovulation (spring). Peptides and peptidases are among the main components that influence the spermatic activity in mammals. The present study aimed to characterize the presence of peptidases in C. d.
Publicado em: 2007