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On modeling door-to-door parcel delivery services in Iran

Parcel delivery is a complex logistic service, as it serves many small or medium-sized customers who may send or receive parcels. Modeling such delivery system needs to integrate two different research areas of hub location and vehicle routing. As it totally depends on the network and the linkage of the nodes, in this paper, some door-to-door service providers are taken into account to provide ...

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We review the main reasons pushing us beyond the SM and we argue in favor of new physics at the electroweak scale (hence experimentally accessible at present or near–future machines). We focus on the appealing possibility that such new physics is given by a super-symmetric (SUSY) extension of the SM. We discuss the minimal case, Constrained Minimal Supersymmetric SM, and more general (maybe mor...

The “Door to Door” Movement of Goods

1. A back-to-back cargo movement is generally understood as the transfer of loose goods from one truck to another---in its literal form, positioning two trucks with their backs to one another. Primitive variants involve laborintensive handling and placement of cargo on the ground during the transfer. This process inflicts serious time delays and damage to cargo and is widely avoided in modern t...

Direct Selling: From Door to Door to E-Commerce

Direct selling is exhibiting substantial growth in sales revenues and number of salespeople involved. Also the acceptation of consumers is growing. During the last decade direct selling organizations (DSOs) are using the Internet more and more, either to communicate with the salespersons, either to promote the products and the business to the consumers. This research is aiming to contribute to ...