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Short note on the explanation of the depopulation of Greenland as an example of the so called agrarian crisis in the Middle Ages. This explanation was proposed by Thorkild Kjærgaard.
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Short note on the explanation of the depopulation of Greenland as an example of the so called agrarian crisis in the Middle Ages. This explanation was proposed by Thorkild Kjærgaard.
This research is triggered by a fundamental shift that is occurring in the manufacture and marketing of aero engines for commercial and defence purposes, away from the selling of products to the provision of services. Under the emerging ‘power by the hour’ paradigm, aero engines are effectively leased to the airlines, with the manufacturing company remaining responsible for their maintenance and r
The mass, energy, and centrality dependence of rapidity density distributions of relativistic, charged particles, produced in heavy-ion interactions in the energy range 4A–200A GeV, are investigated. The results indicate that the rapidity density distributions show systematic variations, which are used to predict distributions for Au+Au and Pb+Pb interactions in a model-independent way.