soil and sediments of the estuaries and wetlands in northwest of persian gulf are recently polluted with different heavy metals because of municipal and industrial wastewaters. therefore an urgent soil cleaning up and remediation program is vital in this region. consequently, this study was initiated to screen two plant species (festuca arundinacea and cynodon dactylon) for hyperaccumulation of...

Inadequate hole cleaning can lead to many problems in horizontal and directional wells. In this work, we tried to investigate the cutting transport phenomenon by an experimental directional drilling simulator, considering the differences between the operational and experimental conditions. The inclination, fluid type (water, foam, viscous, and dense), rotary speed (0 and 110 rpm), nozzle bit si...

BACKGROUND To halt the increase in peanut allergy, we must determine how children become sensitized to peanut. High household peanut consumption used as an indirect marker of environmental peanut exposure is associated with the development of peanut allergy. OBJECTIVE We sought to validate a method to quantify environmental peanut exposure, to determine how peanut is transferred into the envi...

BACKGROUND Currently, there are various antiseptics used for cleaning the skin before surgery, but there is no standard procedure in practice. Chlorhexidine and povidone-iodine are the most preferred compounds among antiseptics. Both are proved to be safe and effective for skin disinfection. In this study, our aim was to investigate the combined effects of chlorhexidine and povidone-iodine on t...

STUDY OBJECTIVES To survey emergency care providers about their stethoscope-cleaning measures and to determine the correlation between these measures and the extent of Staphylococcus carriage. DESIGN Prospective cross-sectional analysis. SETTING University-affiliated community hospital ED. PARTICIPANTS One hundred fifty health care providers, comprising emergency medicine house staff and ...

A key challenge in reducing the burden of lead poisoning is to identify cost-effective interventions that minimize lead-based paint hazards. One-time professional cleaning of lead-contaminated dust and debris was conducted in 37 housing units with deteriorated lead-based paint and dust lead hazards. These study units are a subset of a larger cohort of the nearly 3500 housing units enrolled in t...

BACKGROUND [corrected] Endoscopes are routinely used in hospitals and clinics of the world and they can be potential sources of cross-infection when the decontamination process is unsuitable AIM The routines of flexible endoscope (bronchoscopes, esophagogastroduodenoscopes and colonoscopes) disinfection procedures used in two Brazilian university hospitals were evaluated during a 3-year perio...