Background: Continuous expansion of potable water pollution sources is one of the main concerns of water suppliers, therefore measures such as water safety plan (WSP), have been taken into account to control these sources of pollution. The aim of this study was to identify probable risks and threatening hazards to drinking water quality in Lighvan village along with assessment of bank filtratio...

background: acute kidney injury (aki) is a common problem in critically ill patients and is independently associated with increased morbidity and mortality. recently, serum cystatin c has been shown to be superior to creatinine in early detection of renal function impairment. we compared estimated gfr based on serum cystatin c with estimated gfr based on serum creatinine for early detection of ...

introduction: there are several methods for evaluating microleakage in dentistry, for example dye or bacterial leakage, electro-chemical methods, radioisotope labeling and fluid filtration. the purpose of this study was to assemble the fluid filtration system for quantitative evaluation of microleakage in dental materials. materials and methods: the roots were connected to a tube filled with an...

introduction: the aim of this study was to compare the sealing ability of real seal (rs) and gutta-percha (gp). materials and methods: forty nine extracted human maxillary central incisors were used. the coronal part of each tooth was removed; the root canal was prepared using the crown down technique and apical enlargement to rotary file # 40. the specimens were randomly divided in to 3 groups...

the prevalence of chronic kidney disease (ckd), as defined by the nfk-kdoqi (the national kidney foundation kidney disease outcomes quality initiative) guidelines, is a glomerular filtration rate less than 60 ml/min/1.73 m2 or the presence of microalbuminuria. ckd is increasing worldwide, leading to an increased risk of cardiovascular disease. there is general agreement on the importance of an ...

background glomerular filtration rate (gfr) is widely estimated by serum creatinine based equations such as cockcroft-gault (cg) standardized for body surface, and an abbreviated formula derived from mdrd (modification of diet in renal disease) study. however, some studies suggested that creatinine based estimation of gfr formula can be replaced by cystatin c based formula. objectives the aim o...

conclusions these findings indicate that telbivudine, used in both monotherapy and combination therapy, improves the renal function of patients with chb. the improvements are particularly significant in patients at high renal risk. patients and methods this study included 336 chinese chb patients, who were selected from outpatients in tongji hospital. 44, 122, 66, 58, and 46 of these patients h...

Air filtration is frequently recommended as a component of environmental control measures for patients with allergic respiratory disease. Residential air filtration can be provided by whole house filtration via the home's heating, ventilation, or air conditioning system, by portable room air cleaners, or a combination of the two. Appliances to filter the sleep breathing zone also have been deve...