Bottom trawling is a common fisheries method and also widespread scientific sampling for benthic demersal species. Selectivity catchability are usually estimated using different meshes studies with alternative methods rare. In this study, to improve the estimation of trawl selectivity, we compare bottom catches recordings made by camera fitted on top net. Scientific was conducted along Northeas...

What we see and what we do not see in heath care Fourteen years ago, US Inspector General and the Department of Health and Human Services conduced a detailed analysis of money outflow from the Medicare and Medic-aid federal health care programs; their findings shocked the nation: US $23 billion was lost annually to different forms of fraud and corruption, reaching 14% of the total health budget...