Results 41 to 50 of about 3,307 (174)
Abstract Purpose There is a need for effective solutions for the persistent prevalence of denture stomatitis (DS) in denture‐wearing populations. This study assessed the impact of nanohydroxyapatite (nanoHAP) nanoparticles on Candida albicans biofilm formation on milled polymethylmethacrylate (PMMA) denture bases.
Cynthia U. Udeh +8 more
wiley +1 more source
O presente estudo visou apresentar o biovolume de cianobactérias e algas fitoplanctônicas e perifíticas de reservatórios com diferentes estados tróficos do Parque Estadual das Fontes do Ipiranga, São Paulo, SP, Brasil.
Bárbara Medeiros Fonseca +7 more
doaj
Abstract This report describes the isolation and culture of Sphaerosorus coelastroides from the plankton of a freshwater river in the central Appalachian mountain chain. This alga was first observed in a dry freshwater riverbed in Central Europe in 1908 and, since then, has been included in Xanthophyceae surveys from nearly all continents with ...
Gavin S. Collins +2 more
wiley +1 more source
Body volume in ground beetles (Carabidae) reflects biotope disturbance
Changes in body size of living organisms can indicate changes in environmental quality. The family Carabidae is frequently used as an indicator of environmental status.
Langraf Vladimír +4 more
doaj +1 more source
Abstract Cyanobacterial harmful algal blooms (cHABs) are increasingly frequent and severe globally. Recently, the St. Louis River Estuary (SLRE) has experienced numerous cHABs, but the locations, timing, and environmental conditions associated with them are unknown.
Peter A. Birschbach +3 more
wiley +1 more source
Cyanobacteria and cyanotoxins: the influence of nitrogen versus phosphorus.
The importance of nitrogen (N) versus phosphorus (P) in explaining total cyanobacterial biovolume, the biovolume of specific cyanobacterial taxa, and the incidence of cyanotoxins was determined for 102 north German lakes, using methods to separate the ...
Andrew M Dolman +6 more
doaj +1 more source
The ComEA/ComEC Operon is Critical for Nitrosative Stress Tolerance by an Oral Commensal
ABSTRACT Oral commensal streptococci play a large role in mediating microbial homeostasis. Our prior work has demonstrated that hydrogen peroxide (H2O2) produced by oral commensal streptococci can react with salivary nitrite (NO2) and generate peroxynitrite (ONOO−), a potent antimicrobial.
Sara E. Edmonds +3 more
wiley +1 more source
Using light scatter signal to estimate bacterial biovolume by flow cytometry [PDF]
In the past decade, flow cytometry has become a useful and precise alternative to microscopic bacterial cell counts in aquatic samples. However, little evidence of its usefulness for the evaluation of bacterial biovolumes has emerged in from the literature.The light scattering and cell volume of starved bacterial strains and natural bacterial ...
Bouvier, Thierry +4 more
openaire +3 more sources
O presente estudo visou apresentar o biovolume de cianobactérias e algas fitoplanctônicas e perifíticas de reservatórios com diferentes estados tróficos do Parque Estadual das Fontes do Ipiranga, São Paulo, SP, Brasil.
Bárbara Medeiros Fonseca +7 more
doaj +1 more source
Abstract Zooplankton transfer substantial energy in aquatic food webs and are used as indicators of environmental change. Syntheses of zooplankton community dynamics globally require datasets that span a wide range of environmental gradients; however, these datasets are limited due to methodological differences across programs, taxonomic ...
Stephanie E. Figary +142 more
wiley +1 more source

