Georgia Pfeiffer

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This paper analyzes the stability of a coexistence equilibrium point of a model for competition between two stage-structured populations. In this model, for each population, competition for resources may affect any one of the following population parameters: reproduction, juvenile survival, maturation rate, or adult survival. The results show that the(More)
In the majority of patients with esophageal cancer local tumor infiltration and/or distant metastases are responsible for the poor prognosis. Therefore to improve life expectancy additional modalities--chemotherapy alone or in combination with simultaneous radiation--have been introduced perioperatively. In spite of a possible increase of resectability(More)
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