Results 71 to 80 of about 15,462 (278)

Analysis of Solubility, pH, Antimicrobial Action and Cytotoxicity of Calcium Hydroxide Paste Associated With Ambroxol Hydrochloride

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This study evaluated the association of ambroxol hydrochloride with calcium hydroxide paste as intracanal medication to enhance antimicrobial action on biofilm without affecting pH, solubility and cytotoxicity. Calcium hydroxide (CH) paste and formulations with different ambroxol concentrations were placed into artificial teeth conditioned in ...
Thaís Ferreira Rodrigues Mota   +6 more
wiley   +1 more source

Amazonian drought of 2023: Environmental conditions relevant to fishes

open access: yesJournal of Fish Biology, EarlyView.
Abstract This paper provides a platform for the following studies within this Special Issue. ‘Ecophysiology of fishes in the two great tributaries of the Amazon in the Anthropocene’. It documents the water quality conditions and accompanying zooplankton community structure and biomass relative to fish health in the Rio Negro and Rio Solimões during the
Ora E. Johannsson   +10 more
wiley   +1 more source

Influence of nanohydroxyapatite mouthwash on the growth of Candida albicans biofilm on milled denture surfaces: An in vitro study

open access: yesJournal of Prosthodontics, EarlyView.
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

Response of phytoplankton to an experimental fish culture in net cages in a subtropical reservoir

open access: yesBrazilian Journal of Biology
This study aimed to evaluate nutrients concentration and spatial-temporal changes in phytoplankton biovolume during an experimental fish culture in net cages in a lateral arm of Salto Caxias reservoir, Brazil.
E. C. R. Bartozek   +3 more
doaj   +1 more source

How nitrogen and phosphorus stoichiometry drive the physiology and photosynthesis of Scrippsiella acuminata (Dinophyceae)

open access: yesJournal of Phycology, EarlyView.
Abstract Development and growth of microalgae are mainly sustained by two essential nutrients: nitrogen (N) and phosphorus (P). Although single‐nutrient limitation has been extensively studied, the balance between N and P availability remains less explored.
Lise Delatte   +5 more
wiley   +1 more source

Picophytoplankton predominance in hypersaline lakes (Transylvanian Basin, Romania) [PDF]

open access: yes, 2014
The occurrence and importance of photoautotrophic picoplankton (PPP, cells with a diameter
Bartha, Csaba   +5 more
core   +1 more source

Cyanobacteria and cyanotoxins: the influence of nitrogen versus phosphorus.

open access: yesPLoS ONE, 2012
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

QPI assay of fibroblasts resilience to adverse effects of nanoGO clusters by multimodal and multiscale microscopy

open access: yesJPhys Photonics
Graphene is considered a possible drug deliver in nanomedicine for its mechanical, physical and chemical characteristics. Thus, studying graphene biocompatibility is pivotal to contribute to the modern nano-therapy science.
Marika Valentino   +10 more
doaj   +1 more source

A novel method using a differential staining fluorescence microscopy (DSFM) to track the location of enteric pathogens within mixed-species biofilms

open access: yesScientific Reports, 2023
This study developed a new tool, differential staining fluorescence microscopy (DSFM), to measure the biovolume and track the location of enteric pathogens in mixed-species biofilms which can pose a risk to food safety in beef processing facilities. DSFM
Qiyue Chen   +4 more
doaj   +1 more source

High nitrate to phosphorus regime attenuates negative effects of rising pCO2 on total population carbon accumulation [PDF]

open access: yes, 2012
The ongoing rise in atmospheric pCO2 and consequent increase in ocean acidification have direct effects on marine calcifying phytoplankton, which potentially alters carbon export. To date it remains unclear, firstly, how nutrient regime, in particular by
Eggers, Sarah Lena   +2 more
core   +2 more sources

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