BACKGROUND The objective of this study was to perform simulated-use testing as well as a clinical study to assess the efficacy of the EVOTECH Endoscope Cleaner and Reprocessor (ECR) cleaning for flexible colonoscopes, duodenoscopes, gastroscopes and bronchoscopes. The main aim was to determine if the cleaning achieved using the ECR was at least equivalent to that achieved using optimal manual c...

The problem of data cleaning, which consists of removing inconsistencies and errors from original data sets, is well known in the area of decision support systems and data warehouses. However, for some applications, existing ETL (Extraction Transformation Loading) and data cleaning tools for writing data cleaning programs are insufficient. One important challenge with them is the design of a da...

RATIONALE Cleaning tasks may imply exposure to chemical agents with potential harmful effects to the respiratory system, and increased risk of asthma and respiratory symptoms among professional cleaners and in persons cleaning at home has been reported. The long-term consequences of cleaning agents on respiratory health are, however, not well described. OBJECTIVES This paper aims to investiga...

OBJECTIVES To determine whether environmental cleaning and contamination are associated with variation in the prevalence of methicillin-resistant Staphylococcus aureus (MRSA) between nursing homes. DESIGN Prospective study of environmental contamination and cleaning quality. SETTING Nursing home. PARTICIPANTS Ten California nursing homes. MEASUREMENTS Nursing homes were categorized into...

introduction: pulpectomy of primary teeth is commonly carried out with hand files and broaches; a tricky and time consuming procedure. the purpose of this in vitro study was to compare the cleaning efficacy and time taken for instrumentation of deciduous molars using hand k-files and flex master rotary system. materials and methods: in this study, 68 canals of 23 extracted primary molars with a...

cotton/polyester knitted fabrics as a major production of textile industry was treated with titanium dioxide nanosized particles. the treated fabric with nanosized tio2 became whiter with a good self-cleaning property. also the discoloration of reactive black 5 dye was studied and reported. the stabilization of tio2 on cotton/polyester knitted fabrics by citric acid (ca) with sodium hypophospha...

While specializing in primarily aqueous and semi-aqueous cleaning systems to replace hazardous solvents, TURI’ s Surface Cleaning Laboratory must also offer environmentally-friendlier chemical substitutions where water-based technologies do not apply. Media blasting for parts cleaning and supercritical extraction for precision cleaning are two options that will be reviewed on an application-spe...

BACKGROUND Household cleaning products are associated with adverse respiratory health outcomes, but the cardiovascular health effects are largely unknown. OBJECTIVE We determined if long-term use of household sprays and scented products at home was associated with reduced heart rate variability (HRV), a marker of autonomic cardiac dysfunction. METHODS We recorded 24-hr electrocardiograms in...

Fouling is an age-old problem in many process industries. It is responsible for large energy and throughput losses, resulting in financial penalties and negative environmental impact. One effective mitigation strategy is the regular cleaning of fouled heat transfer devices. Optimization tools can be used to schedule the timing of cleaning actions in order to minimize the cost of fouling and imp...