INTRODUCTION Occupational exposure limits (OELs) for the protection of workers have been around at least since 1939 when the National (later changed to American) Conference of Governmental Industrial Hygienists (ACGIH) published its inaugural acceptable workplace exposure limits (now known as threshold limit values, or TLVs). In 1970, the U. S. Occupational Safety and Health Act incorporated by...

In this paper we describe and analyze LOCMEDBOOST, an algorithm that boosts regressors with input dependent weights. The algorithm is a synthesis of median boosting [1] and localized boosting [2, 3, 4], and unifies the advantages of the two approaches. We prove boostingtype convergence of the algorithm and give clear conditions for the convergence of the robust training error, where robustness ...

BACKGROUND When robots mill bone near critical structures, safety margins are used to reduce the risk of accidental damage due to inaccurate registration. These margins are typically set heuristically with uniform thickness, which does not reflect the anisotropy and spatial variance of registration error. METHODS A method is described to generate spatially varying safety margins around vital ...

Linear basal cell carcinoma (BCC), which has a ratio of its long and short axes of more than 3: 1, is a distinct clinical entity among BCC. We report the first case report of a linear BCC in an Asian patient. An 87 year-old woman presented with an ulcerated black nodule, 15x5mm (3: 1), on her nasojungal fold of the right lower eyelid. The tumor was excised with 5 mm safety margin. The pathologi...

The frequency-dependent response of a one-dimensional fermion system is investigated using Current Density Functional Theory (CDFT) within the local approximation (LDA). DFT-LDA, and in particular CDFT-LDA, reproduces very well the dispersion of the collective excitations. Unsurprisingly, however, the approximation fails for details of the dynamic response for large wavevectors. In particular, ...

Settlement calculations in serviceability limit state (SLS) design of embankments require the estimation characteristic values soil properties to account for different sources uncertainty. The upcoming revised version EN 1997-1:2004 (Eurocode 7) presents a statistically based equation determine with aim providing more consistent safety margin. this study is quantify margin settlement using and ...

In the Risk-Informed Safety Margin Characterization (RISMC) approach we want to understand not just the frequency of an event like core damage, but how close we are (or are not) to key safety-related events and how might we increase our safety margins. The RISMC Pathway uses the probabilistic margin approach to quantify impacts to reliability and safety by coupling both probabilistic (via stoch...