The logistics branch always feels the impact when a cold wind blows in the economy,or when things improve,and that's the hope of the port of Duisburg - which boasts Europe's largest inland harbor.Some 300 logistics companies handle 55 million tons of products here every year - by freighter,rail and truck. The economic crisis has also hit home - but the head of the commercial port authority is putting his trust in a forward-looking strategy. A report by Dagmar Zindel