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Mostrando 1-12 de 203 artigos, teses e dissertações.
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1. Avaliação das propriedades reológicas de argamassas com adição de TiO 2
Resumo A adição do TiO 2 em argamassas de revestimento é realizada para promover a autolimpeza por meio da atividade fotocatalítica. Contudo, a adição influencia a trabalhabilidade da argamassa e, consequentemente, a etapa de aplicação, visto que o TiO 2 utilizado pode apresentar grandes quantidades de partículas finas e elevada área superficial,
Ambient. constr.. Publicado em: 2021-10
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2. Influência do procedimento de dispersão de microfibras de polipropileno (PPMF) nas propriedades das argamassas frescas e endurecidas
Resumo O estudo avaliou a influência do procedimento de dispersão de microfibras de polipropileno (PPMF) nas propriedades de estado fresco e endurecido de argamassas de revestimento. Amostras preparadas com dois procedimentos diferentes de dispersão de PPMF foram avaliadas comparativamente com amostras de referência preparadas sem adição de PPMF. As pr
Ambient. constr.. Publicado em: 2020-06
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3. Recent Developments on the Elucidation of Colloidal Aspects of Asphaltenes and Their Relevance to Oilfield Problems
Asphaltenes constitute the heavy petroleum fraction responsible for deposition events that may lead to reduced oil production, therefore of great interest for flow assurance. These molecules self-assemble in solutions leading to formation of aggregates that eventually grow towards precipitation and blockages in reservoirs and pipelines. Based on the Yen-Mull
J. Braz. Chem. Soc.. Publicado em: 2020-02
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4. In vitro study of postbiotics from Lactobacillus plantarum RG14 on rumen fermentation and microbial population
ABSTRACT An in vitro study was carried out to identify the effects of different inclusion levels of postbiotics from Lactobacillus plantarum RG14 on rumen fermentation profiles, gas production kinetics, and microbial population in rumen fluid collected from goats. Postbiotics were added at different levels (0, 0.3, 0.6, 0.9, and 1.2%) and incubated for 72 h
R. Bras. Zootec.. Publicado em: 08/11/2018
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5. Caracterização térmica de ecoclínqueres hidratados produzidos a partir de resíduos da indústria de papel e celulose
Resumo Os resíduos do setor de papel e celulose são potenciais para serem usados como materiais alternativos na produção de clínqueres. Neste estudo, ecoclínqueres foram obtidos utilizando apenas resíduos como matéria-prima. Ecoclínqueres com diferentes teores de C3S e C2S foram produzidos e hidratados por 7 dias a 40 °C, ou por 28 e 90 dias em tem
Cerâmica. Publicado em: 2018-09
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6. The effect of obsessive compulsive symptoms on psychopathology in patients with schizophrenia
Abstract Background: There is a growing interest on the impact of comorbid obsessive-compulsive symptoms (OCS) on the course and severity of schizophrenia in recent years. Objective: This study determined the prevalence of OCS in schizophrenia patients and the clinical outcomes of the comorbidity. Methods: A total of 220 schizophrenia patients were recrui
Arch. Clin. Psychiatry (São Paulo). Publicado em: 2018-05
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7. Complications after prone PCNL in pediatric, adult and geriatric patients – a single center experience over 7 years
ABSTRACT Introduction CROES-Clavien system (CCS) for grading complications in percutaneous nephrolithotomy (PCNL) is a step towards standardization of outcomes. We categorized complications based on CCS and predicted risk factors across the entire cohort and individually for pediatric (P: ≤18 years), adult (A: 19-65 years) and geriatric (G: ≥65 years)
Int. braz j urol.. Publicado em: 2017-08
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8. A eficácia da adição do TiO2 em argamassas quanto à manutenção das condições iniciais em termos de sua refletância à radiação solar
Resumo O contato das fachadas com agentes de degradação e a incidência direta da radiação ultravioleta sobre os revestimentos externos os tornam mais opacos com o passar do tempo, afetando suas características de cor e refletância. O estudo avaliou argamassas contendo TiO2 aplicadas em substratos de concreto, buscando manter suas características inic
Ambient. constr.. Publicado em: 2017-07
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9. Becoming Full Open Access
J. Braz. Chem. Soc.. Publicado em: 2017-01
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10. Effect of Synthetic Emulsifier and Natural Biosurfactant on Feed Process and Quality of Pelletized Feed in Broiler Diet
ABSTRACT A feed production trial was conducted to study the effect of synthetic emulsifier and natural biosurfactant the process and quality of pelletized broiler feed. A corn-soy based broiler diet was formulated with fixed ratio 2:1 of oil-to-water with two types of emulsifiers, namely glyceryl polyethylene glycol ricinoleate synthetic emulsifier and lysop
Rev. Bras. Cienc. Avic.. Publicado em: 2017-01
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11. Clomiphene citrate treatment for late onset hypogonadism: rise and fall
ABSTRACT Objective: Previous series have demonstrated that Clomiphene Citrate (CC) is an effective treatment to increase Total Testosterone (TT) in Late Onset Hypogonadism (LOH) patients. However, what happens to TT levels after ending CC treatment is still debatable. The objective of this study is to evaluate TT levels 3 months after the discontinuation of
Int. braz j urol.. Publicado em: 2016-12
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12. The association of very low-density lipoprotein receptor (VLDLR) haplotypes with egg production indicates VLDLR is a candidate gene for modulating egg production
Abstract The very low-density lipoprotein receptor (VLDLR) transports egg yolk precursors into oocytes. However, our knowledge of the distribution patterns of VLDLR variants among breeds and their relationship to egg production is still incomplete. In this study, eight single nucleotide polymorphisms (SNPs) that account for 87% of all VLDLR variants were gen
Genet. Mol. Biol.. Publicado em: 14/07/2016