Retrospective analysis of initial audiograms from 21 hearing conservation programs (HCPs) revealed several statistical protocols capable of identifying HCPs of known performance. American National Standards Institute (ANSI) and Occupational Safety and Health Administration (OSHA) protocols clearly identified 3 HCPs known to have demonstrated excellent overall programs. ANSI and OSHA outcomes ap...

Many different groups are engaged in developing standards that use object concepts. These include: • application-specific standards groups, e.g. — CAD Framework Initiative (electrical CAD) — PDES/STEP (mechanical CAD) — PCTE (CASE) — OSI/NMF (telephony; network management) — ANSI X3H6 (CASE) — ANSI X3H4 (IRDS) • groups working on generic object standards — ISO ODP, ANSI X3T3 (Open Distributed P...

OBJECTIVE The standard obstetric ultrasound examination includes documentation of arms and legs. The purpose of this study is to review the efficacy of ultrasound for the detection of limb anomalies, the type and incidence of associated malformations and pregnancy outcomes. METHOD All cases of polydactyly (POD), abnormal hand position (AHP), limb reduction defects (LRD) and arthrogryposis (AR...

Type checking is considered an important mechanism for detecting programming errors, especially interface errors. This report describes an experiment to assess the defect-detection capabilities of static, inter-module type checking. The experiment uses Ansi C and Kernighan&Ritchie (K&R) C. The relevant di erence is that the Ansi C compiler checks module interfaces (i.e., the parameter lists of ...