A functional approach for the study of the random walks in random sceneries (RWRS) is proposed. Under fairly general assumptions on the random walk and on the random scenery, functional limit theorems are proved. The method allows to study separately the convergence of the walk and of the scenery: on the one hand, a general criterion for the convergence of the local time of the walk is provided...

Genet 34:275, 1997 5. Gordeuk V, Mukiibi J, Hasstedt SJ, Samowitz W, Edwards CQ, West G, Ndambire S, Emmanuel J, Nkaza N, Chapanduka Z, Randall M, Boone P, Romano P, Martell RW, Yamashita T, Effler P, Brittenham G: Iron overload in Africa. Interaction between a gene and dietary iron content. N Engl J Med 326:95, 1992 6. Expert Scientific Working Group: Summary of a report on assessment of the i...

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The broad concept of chemoprevention applies to the prevention of clinical cancer by the administration of pharmaceuticals or dietary constituents. In recent years there has been a rapid expansion of basic research on mechanisms of chemoprevention, and more and more candidate compounds are entering clinical trials. It is therefore timely that the subject of the 13th Sapporo Cancer Seminar held ...