Iron species can act as electron donors, acceptors or serve a sorbent to co-precipitate contaminants. These properties, along with its relatively low cost material, make iron an ideal compound for environmental applications in the removal of pollutants from water and wastewater. This study assesses use metallic reductant toxic Cr(VI) aqueous solutions, well hexavalent (ferrates) organic compoun...

Background: Streptococcus mutans is considered as a major microorganism causing tooth decay, affecting individuals globally. Different types of chewing sticks possess anti cariogenic properties, traditionally been consumed in maintaining dental hygiene. Usage these can be economical developing and rural regions where caries health concern. 
 Objective: The current study aims to evaluate an...

(w ww .m ed kn ow .co m) . The results are shown in the Table. The exponential character of turbidity increase was less sensitive yet a more speciÞ c screening criterion, thus it is suitable for preliminary conÞ rmation of signiÞ cant bacteriuria. The non-speciÞ ed turbidity increase estimation2 has a high negative predictive value and is suitable (just like the biochemical screening)1,3 for pr...

BACKGROUND Studies have examined whether there is a relationship between drinking water turbidity and gastrointestinal (GI) illness indicators, and results have varied possibly due to differences in methods and study settings. OBJECTIVES As part of a water security improvement project we conducted a retrospective analysis of the relationship between drinking water turbidity and GI illness in ...

We observed phase transition and phase relaxation processes of a poly(N-isopropylacrylamide) (PNIPAM) aqueous solution using the heterodyne transient grating (HD-TG) method combined with the laser temperature jump technique. The sample temperature was instantaneously raised by about 1.0 K after irradiation of a pump pulse to crystal violet (CV) molecules for heating, and the phase transition wa...

this study presents a comparison between aluminum and iron plate electrodes on phosphate removal from aqueous solutions by electrocoagulation process. the effectiveness of main operational parameters such as initial ph, initial phosphate concentration and current density were examined. in addition, treated solution and sludge characteristics, energy consumption and electrode mass depletion were...

For estimating suspended sediment concentration (SSC) in rivers, turbidity is generally a much better predictor than water discharge. Although it is now possible to collect continuous turbidity data even at remote sites, sediment sampling and load estimation are still conventionally based on discharge. With frequent calibration the relation of turbidity to SSC could be used to estimate suspende...

We investigated the efficacy of 1064nm Nd:YAG laser for the treatment of onychomycosis caused by dermatophytes. The study population consisted of 12 patients (6 male, 6 female ; average age 53.5 years), with onychomycosis confirmed by fungal culture and/or real-time PCR identification of the pathogen. The causative agent was identified as Trichophyton rubrum in 11 cases and a mixture of T. rubr...

Automated data collection is essential to effectively measure suspended sediment loads in storm events, particularly in small basins. Continuous turbidity measurements can be used, along with discharge, in an automated system that makes real-time sampling decisions to facilitate sedi­ ment load estimation. The Turbidity Threshold Sampling method distributes sample collection over the range of r...