BACKGROUND Focal segmental glomerulosclerosis (FSGS) is a component of childhood nephrotic syndrome occurring in 10%-20% of all cases. Over time, 25%-50% of children with FSGS develop kidney failure disease. We followed a cohort of children with FSGS in order to delineate the risk profile of progression to kidney failure (KF). METHODS We evaluated patient data collected from 1977 to 2002 at a...

At the laboratory level, we studied the effects of various factors, the initial concentration of metal ions, the pH of the solution, the amount of mud used and contact time, on the adsorption of zinc, and leads ions onto dam material (Mascara, Algeria). The constituents of silt sediment are quartz, calcite, and a mixture of clays. The equilibrium time was of the order of 6...

The sensitivity of different cumulus physical parameterization schemes for simulating extreme winter precipitation events over the Arabian Peninsula (AP) is investigated using a high-resolution weather research and forecasting (WRF) model. For winters in 2001–2016, following three are examined: (i) Kain–Fritsch (KF), (ii) Betts–Miller–Janji? (BMJ), (iii) Grell–Freitas (GF). simulation results s...

The potential of cattail (Typha latifolia) and water hyacinth (Eichhornia crassipes) biomass to remove Pb Cd ions from metal solutions was determined. removal efficiency decreased with the increase in initial concentration aqueous solution but increased doses. biosorption unaffected by pH 5.0 6.5. Metal contact time then reached equilibrium about 45 min. Higher qmax (the Langmuir model) KF Freu...

Unmodified zeolites show little affinity for anions due to the fact that their surfaces are negatively charged. However modification of zeolites with amines turns their negative surface charge to positive and creating higher adsorption capacity for anions. In this study, polyaniline-clinoptilolite composite was prepared by polymerization of anilinium on the surface of zeolite. The composite...

the removal ofxylenol orange from aqueous solution onto the coal ash was investigated at room temperature. the results show that the adsorption capacity of xylenol orange increased as the adsorption time increased and then equilibrium established after 30 min adsorption time. the results obtained revealed that the coal ash removed about 80 % of xylenol orange from the aqueous solution within 40...

the aim of this study was to investigate the congo red sorption on soil from the region of iasi (ne of romania). the effects of contact time, temperature, sorbent dose and initial dye concentration on soi sorption were investigated. the results show that the amount adsorbed of congo red on soil increase with increasing dye concentration, temperature and contact time. the experimental data were ...

The present study reports, the synthesis of ZnO-bentonite nanocomposite by the incorporation of ZnO with bentonite clay. The nanocomposite was characterised by XRD and SEM. ZnO-bentonite was effectively used for removal of Methylene Blue (MB). Removal of MB takes place by photocatalytic degradation and adsorption. Photocatalytic degradation of MB occurs by advanced oxidation process. The factor...