This is a preview. Log in through your library . Abstract We examine the importance of possible nonrandom attrition to an econometric model of life cycle labor supply using both a Wald test comparing ...

The latest IPCC climate report, for the first time, accounted for concrete carbonation in the global emissions inventory, which is important because the built environment represents a quantifiable ...

Clinical sample management, particularly for multi-centred trials, has been a challenge for every trial leader for many years and the advent of ever more complicated biomarker sampling has increased ...