Christos Zikopoulos

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A case of unilateral torsion of the spermatic cord in a newborn is reported. Extra-vaginal neonatal torsion of the spermatic cord, although rare, is being recognized with increasing frequency. Treatment requires immediate surgical exploration. Controversy exists concerning the urgency of exploration as well as the need for contralateral orchiopexy, since(More)
We examine a reverse supply chain consisting of a collection site, where consumers return used products, and a remanufacturing facility. Some of the returned products are transported to the remanufacturing facility in order to be remanufactured and used to satisfy the stochastic demand for remanufactured products. The quality of returns is characterized by(More)
The increased quality volatility that characterizes returned used products in reverse supply chains, has led both academic research and industrial practice to support the establishment of, preferably fast and inexpensive, procedures for the quality assessment of returns. To this end, an initial classification of returns is typically performed based on some(More)
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