Ganglionopathies (GNP), also known as sensory neuronopathies, are a group of conditions characterized by primary and selective damage to the dorsal root ganglia (DRG) of the spinal cord and sensory nuclei of the brainstem1,2. The etiologies are diverse and include immune-mediated diseases, vitamin deficiencies, drug toxicity, paraneoplastic syndromes and genetic causes, but many patients are ye...

The competitive market and declined economy have increased the relevant importance of making supply chain network efficient. This has created many motivations to reduce the cost of services, and simultaneously, to increase the quality of them. The network as a tri-echelon one consists of Suppliers, Warehouses or Distribution Centers (DCs), and Retailer nodes. To bring the problem closer to real...

Logistic network design is one of the most important strategic decisions in supply chain management that has recently attracted the attention of many researchers. Transportation network design is then one of the most important fields of logistic network. This study is concerned with designing a multi-stage and multi-product logistic network. At first, a mixed integer nonlinear programming model...

in this paper, the distribution network for multi-level supply chain has been studied. products produced in factories are sent to customers through warehouses and distribution centers based on specific demands. warehouses as holding inventory facilities are located close to factories and the distribution centers are placed in the most accessible locations for services near customers. each item ...