frozen at 20 °C, also in the absence of a reducing agent. On the basis of the present data, we give the following recommendations for handling, storage, and shipment: Blood should be kept at 4 °C and must be centrifuged within 6 h. Even in the absence of a reducing agent, plasma can be kept at 4 °C for 3 days without appreciable degradation and shipped if this does not take more than the same t...

Service network design problems arise at airlines (passenger and cargo), trucking companies, railroads, etc., wherever there is a need to determine cost minimizing routes and schedules, given constraints on resource availability and level of service. We focus on a particular service network design application, namely, the express shipment delivery problem, and we develop models and a solution t...

this study deals with a two-level supply chain consisting of one manufacturer and one retailer. we consider an integrated production inventory system where the manufacturer processes raw materials in order to deliver finished product with imperfect quality to the retailer, where number of defective product has a uniform distribution. the retailer receives product and conducts a 100% inspection....

As part of the AACR Annual Meeting Methods Workshop "Sample Collection, Processing, and Storage for Large-Scale Studies: Biorepositories to Support Cancer Research," blood specimen collection, processing, storage, and dissemination issues were discussed. Whole blood and blood fractions comprise a major portion of biospecimen collections for population-based studies. Although procedures for coll...