Performing cleanup actions such as restoring a variable or closing a file used to be impossible to guarantee in Forth before Forth-94 gave us catch. Even with catch, the cleanup code can be skipped due to user interrupts if you are unlucky. We introduce a construct that guarantees that the cleanup code is always completed. We also discuss a cheaper implementation approach for cleanup code than ...

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...

AIMS To assess whether pre-soaking files in an enzymatic cleaner prior to ultrasonic cleaning had any effect on cleanliness and also to assess the effect of the time that endodontic files spend in an ultrasonic bath prior to sterilization on their overall cleanliness. METHODOLOGY Twenty root canals in a total of ten patients were cleaned and shaped using conventional techniques. Following use...

Background & Aims of the Study: Hospital infectious is one of the major causes of mortality among the hospitalized cases. The interior environment status of hospitals has the important rule in microbial transmission.  Translocation of the infectious agents may be essentially due to contacts between patients and contaminated interior environment. This work was performed to ...

4. Sample Preparation and Characterization 7 4.1 Hydrogen-content determination for as-fabricated samples 7 4.2 Minimum sample lengths for oneand two-sided oxidation tests 7 4.3 End-cap mass and welding procedure for one-sided oxidation test samples 7 4.4 Length, outer diameter, and wall thickness measurements 7 4.5 Pre-test cleaning with chemical detergent or organic solvent and rinsing 8 4.6 ...

OBJECTIVE To determine the thoroughness of terminal disinfection and cleaning of patient rooms in hospital intensive care units and to assess the value of a structured intervention program to improve the quality of cleaning as a means of reducing environmental transmission of multidrug-resistant organisms within the intensive care unit. DESIGN Prospective, multicenter, and pre- and postinterv...

Traditionally, data cleaning has been performed as a pre-processing task: after all data are selected for a study (or application), they are cleaned and loaded into a database or data warehouse. In this paper, we argue that data cleaning should be an integral part of data exploration. Especially for complex, spatio-temporal data, it is only by exploring a dataset that one can discover which con...