Microcosm
Mostrando 1-12 de 134 artigos, teses e dissertações.
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1. Implications of global climate change for the development and ecological interactions between two key Amazonian aquatic macrophytes
ABSTRACT Amazon wetlands are among the most vulnerable ecosystem to be impacted by climate change, which may increase the frequency of extreme droughts and floods. We used Eichhornia crassipes and Pistia stratiotes, two abundant aquatic plants in the Amazon floodplains, to evaluate the effects of combined temperature and [CO2] increase on growth, physiology
Acta Bot. Bras.. Publicado em: 2021-03
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2. Capitais científicos em saúde coletiva: proposta de análise inspirada nas fontes utilizadas na obra Homo academicus
Resumo Espaço social de produção de saberes e práticas, a saúde coletiva (SC) é reconhecida por seus estudiosos como um campo, a partir da acepção de Pierre Bourdieu. O campo científico é um microcosmo social dotado de leis próprias, em que se inserem os agentes e as instituições que produzem/reproduzem/difundem a ciência. Este ensaio visa prop
Saude soc.. Publicado em: 07/10/2019
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3. Biomass and abiotic variables change in phytotelmic environment in the tank-bromeliad Nidularium longiflorum Ule in tropical forest
Resumo Objetivo Fitotelma desempenha um papel importante no crescimento das plantas e funcionamento do ecossistema, mas este microcosmo aquático natural é pouco investigado. O objetivo do presente estudo foi avaliar as variações sazonais (estações seca e chuvosa) e espaciais (trilha florestal e córrego) do fitotelma de Nidularium longiflorum, bromél
Acta Limnol. Bras.. Publicado em: 23/09/2019
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4. Effect of hydroalcoholic extract of Myracrodruon urundeuva All. and Qualea grandiflora Mart. leaves on the viability and activity of microcosm biofilm and on enamel demineralization
Abstract Objectives: The aim of this study was to assess the effect of Myracrodruon urundeuva All. and Qualea grandiflora Mart. leaves hydroalcoholic extracts on viability and metabolism of a microcosm biofilm and on enamel demineralization prevention. Methodology: Microcosm biofilm was produced on bovine enamel using inoculum from pooled human saliva mixe
J. Appl. Oral Sci.. Publicado em: 30/05/2019
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5. Comparison between static and semi-dynamic models for microcosm biofilm formation on dentin
Abstract Microcosm biofilm has been applied to induce carious lesions in dentin. However, no study has been done to compare the impact of the type of model for providing nutrients to microcosm biofilm formation on dentin. Objective This study compared the performance of two kinds of models (static and semi-dynamic) on the biofilm formation and the developme
J. Appl. Oral Sci.. Publicado em: 07/01/2019
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6. The role of human milk and sucrose on cariogenicity of microcosm biofilms
Abstract This study investigated the effect of human milk, alone and associated with sucrose, in the cariogenicity of biofilms in a microcosm biofilm model and compared with the cariogenicity of sucrose and bovine milk. Microcosm biofilms were grown in enamel discs in 24-well plates. Six growth conditions were studied: DMM (chemically defined artificial sali
Braz. oral res.. Publicado em: 11/10/2018
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7. Analysis of the antimicrobial and anti-caries effects of TiF4 varnish under microcosm biofilm formed on enamel
Abstract Titanium tetrafluoride (TiF4) is known for interacting with enamel reducing demineralization. However, no information is available about its potential antimicrobial effect. Objectives This study evaluated the antimicrobial and anti-caries potential of TiF4 varnish compared to NaF varnish, chlorhexidine gel (positive control), placebo varnish and un
J. Appl. Oral Sci.. Publicado em: 22/02/2018
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8. Differential survivorship of congeneric ornamental fishes under forecasted climate changes are related to anaerobic potential
Abstract Two Amazonian closely related tetras – cardinal Paracheirodon axelrodi and green neon P. simulans – were artificially acclimatized to environmental chambers mimicking future climate change scenarios (mild, moderate and extreme), using a microcosm facility. P. simulans survived (100%) to all scenarios after 30 days exposure, while P. axelrodi pre
Genet. Mol. Biol.. Publicado em: 19/02/2018
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9. Cymbopogon citratus essential oil: effect on polymicrobial caries-related biofilm with low cytotoxicity
Abstract The objective of this study was to evaluate the effects of Cymbopogon citratus essential oil and its main compound (citral) against primary dental colonizers and caries-related species. Chemical characterization of the essential oil was performed by gas chromatography/mass spectroscopy (GC/MS), and the main compound was determined. Antimicrobial act
Braz. oral res.. Publicado em: 06/11/2017
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10. INTERNAL MIGRATIONS THEORY APPLICATION IN CORPORATE GOVERNANCE
ABSTRACT Purpose: To identify the Internal Migration Theory application to the corporate governance subject in an autarchy. Originality/value: The originality of this paper lies in the geographically recognized Internal Migration Theory, which is also recognized within the anthropological-organizational context by an organizational culture in which moral h
RAM, Rev. Adm. Mackenzie. Publicado em: 2017-10
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11. Antiseptics and microcosm biofilm formation on titanium surfaces
Abstract Oral rehabilitation with osseointegrated implants is a way to restore esthetics and masticatory function in edentulous patients, but bacterial colonization around the implants may lead to mucositis or peri-implantitis and consequent implant loss. Peri-implantitis is the main complication of oral rehabilitation with dental implants and, therefore, it
Braz. oral res.. Publicado em: 08/03/2016
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12. Carbazole degradation in the soil microcosm by tropical bacterial strains
In a previous study, three bacterial strains isolated from tropical hydrocarbon-contaminated soils and phylogenetically identified as Achromobacter sp. strain SL1, Pseudomonas sp. strain SL4 and Microbacterium esteraromaticum strain SL6 displayed angular dioxygenation and mineralization of carbazole in batch cultures. In this study, the ability of these isol
Braz. J. Microbiol.. Publicado em: 27/10/2015