existence of acid humic in water resources is undesirable and causes carcinogenic component in disinfection process due to reaction with chlorine. due to their cost-effectiveness and higher physical resistance than activated carbon, natural zeloites are used for removing various pollutants. . in the present study, iranian natural zeolite modified with cetylpyridinium bromide (cpb) was investiga...

Acute uncomplicated cystitis and pyelo-nephritis, most episodes of which are caused by uropathogenic strains of Esch-erichia coli, are very common infections affecting otherwise healthy women. Uro-pathogenic E. coli strains, compared with fecal strains, are more likely to possess the potential for enhanced extraintestinal vir-ulence, which enables the organisms to overcome local host defenses a...

We report a case of prosthetic valve nocardia endocarditis. A 43 year old farmer underwent aortic valve replacement with a bioprosthetic valve. The immediate post-operative course was uneventful but 2 weeks later he developed fever. A trans-oesophageal echocardiogram (TEE) showed a string like structure attached to the prosthetic valve. Blood cultures grew N. farcinica. He was initially treated...

The paper deals with metrology and special area of legal metrology, whose task is to ensure consistency correctness measurements. contribution in addition definitions explanations basic concepts principles applied mainly presented the results scientific research work interdisciplinary field Slovak republic. main content a description calibration equipment for verification fuel dispensers, proce...

Sawdust is one of the beneficial by-products wood production, along with a number others. In construction structures, sawdust, considered waste material, successfully used to create sawdust concrete. present study, new analysis mechanical and physical properties sawdust-reinforced epoxy resin composites (SRER) was presented. This mixing composite fabricated using compression molding techniques ...

An analytical method for analyzing SMZ in human plasma and urine using high-performance liquid chromatography (HPLC) was developed. The separation carried out on a Shim-pack GIST® C18 column (150 × 4.6 mm, 5 ?m) with temperature setting of 30°C. mobile phase consisted glacial acetic acid pH 2.5: methanol: acetonitrile (70:25:5, v/v/v) at rate 0.8 mL/min. Detection done PDA detector the range ?1...

A review of the fate and environmental risks associated with the use of hexasinone, imasapyr, sulfometuron methyl, and triclopyr in pine silviculture in the South is presented. Herbicides used in forestry can contaminate surface waters to varying degrees depending on the application rate , method of application, product formulation, and site specific characteristics, but streamside management z...

In future high-speed self-routing photonic networks based on all-optical time division multiplexing (OTDM) it is highly desirable to carry out packet switching, clock recovery and demultplexing in the optical domain in order to avoid the bottleneck due to the optoelectronics conversion. In this paper we propose a self-routing OTDM node structure composed of an all-optical router and demultiplex...

This study investigated the effect of CaO2 pretreatment on sulfonamide antibiotics (SMs) remediation by Chlorella sp. Results showed that a dose ranging from 0.05 to 0.1 g/g biomass was best and led higher SMs removal efficacy 5–10% than control. The contributions made cometabolism in were very similar. Bioassimilation could remove 24% sulfadiazine (SDZ) sulfamethazine (SMZ), accounted for 38% ...