This study aims to evaluate the multidetector computed tomography (CT) imaging features in differentiating exophytic renal angiomyolipoma (AML) from retroperitoneal liposarcoma. We retrospectively enrolled 42 patients with confirmed exophytic renal AML (31 patients) or retroperitoneal liposarcoma (11 patients) during 8 years period to assess: renal parenchymal defect at site of tumor contact, s...

[email protected] Abstract: The planning of supply for fashion products, seasonal products and technologically innovative products presents certain similar challenges. These products are characterized by high demand uncertainty and require responsive supply chains to effectively match supply to demand. Further, for such products, it is useful to explicitly model how forecast uncertainty i...

Globalized companies seek growth while dealing with more complex and compelling challenges such as economic volatility, fluctuating commodity prices, supply-chain inefficiencies and increasing customer expectations. While companies cannot control all of these challenges, there is much they can do to remain competitive. Companies can gain competitive edge through improved demand forecasting and ...

This paper describes an order planning system for dynamic supply-chains, addressing the requirements of a make-to-order business environment. A distributed and decentralised information system, based on an architecture of agents and extensively using the internet, was designed and implemented to provide new and more powerful decision support. The system aims at responding to the basic requireme...

This paper studies the risks and uncertainties surrounding global food supply chains and finds that “scenario planning” which is a popular tool used in other sectors for risk identification, is less widely used to indentify risks within global food supply chains. Presented in this paper is a review of available literature and a discussion with regards to the feasibility of using scenario planni...

Recent events have highlighted the need for planners to consider the risk of disruptions when designing supply chain networks. Supply chain disruptions have a number of causes and may take a number of forms. Once a disruption occurs, there is very little recourse regarding supply chain infrastructure because these strategic decisions cannot be changed quickly. Therefore, it is critical to accou...

Supply chain management refers to efficient operation paradigms related to procurement of raw material, transforming them into semi-finished and finished products and distributing them to the end customer, thereby transcending multiple business units. Poor supply chain management (more often than not) predominantly results in excessive amounts of inventory, the largest asset for many firms. Inv...

The metabolic regulation of blood flow is central to guaranteeing an adequate supply of blood to the tissues and microvascular network stability. It is assumed that vascular reactions to local oxygenation match blood supply to tissue demand via negative-feedback regulation. Low oxygen (O2) levels evoke vasodilatation, and thus an increase of blood flow and oxygen supply, by increasing (decreasi...

Dmitry A. Ivanov State research center of Russia, Central Research Institute of Robotics and Technical Cybernetics 194064 Saint Petersburg, RUSSIA [email protected] Alexander V. Arkhipov State research center of Russia, Central Research Institute of Robotics and Technical Cybernetics 194064 Saint Petersburg, RUSSIA [email protected] Boris N. Sokolov Russian academy of science, Saint Pe...

This paper addresses the problem of determining the sale price and the production quantity under supply uncertainty. The problem is commonly observed in the agricultural industry. We consider a firm that initially leases farm space in order to grow fruit. The realized amount of fruit supply fluctuates due to weather conditions, diseases, etc. At the end of the growing season, the firm makes two...