Remote sensing of aerosol optical characteristics in sub-Sahel, West Africa Satellite estimation of spectral surface UV irradiance in the presence of tropospheric aerosols: 1. Cloud‐free case Molecular epidemiology of atherosclerosis. Optical character reader Ozone profile retrievals from the Ozone Monitoring Instrument Advertising and the aggregate demand for cigarettes Expression vectors for hirudin, transformed cells and process for the preparation of hirudin Transport equations for the QCD quark Wigner operator Growth in NOx emissions from power plants in China: bottom-up estimates and satellite observations Comparison of OMI NO2 tropospheric columns with an ensemble of global and European regional air quality models