background considerable development of mri technology in diagnostic imaging, high cost of mri technology and controversial issues concerning official charges (tariffs) have been the main motivations to define and implement this study. objectives the present study aimed to calculate the unit-cost of mri services using activity-based costing (abc) as a modern cost accounting system and to fairly ...

Investment portfolios should be rebalanced to take account of changing market conditions and changes in funding. Standard mean-variance (MV) portfolio selection methods are not appropriate for portfolio rebalancing, as the initial portfolio, change in funding and transaction costs are not considered. A quadratic mixed integer programming portfolio rebalancing model, which takes account of these...

PURPOSE Describe the relationship among modifiable health behaviors and short-term medical costs. DESIGN Prospective study linking cross-sectional survey data that assessed modifiable risk behaviors with insurance claims. SETTING A large health plan in Minnesota. SUBJECTS A stratified, random sample of 10,000 yielded an analytic data set for 7983 members. MEASURES The dependent variable...

This paper is in search of designing the cellular manufacturing systems (CMSs) under dynamic and flexible environment. CM is proper for small-to-medium lot production environment that helps the companies to produce variable kind of productions with at least scraps. The most important benefits of CM are decline in material handling, reduction in work-in-process, reduction in set-up time, increme...

In order to estimate economic values of productive traits (meat, milk and wool) in Taleshi native sheep breed of Iran, records from economic parameters and performance of local Taleshi flocks were used. The economic values of traits were used to select the maximum profit estimation also to study the sensitivity rate of the model the effects of 20 percent increase / decrease in the price of milk...

We present a methodology that enables the use of classification algorithms on regression tasks. We implement this method in system RECLA that transforms a regression problem into a classification one and then uses an existent classification system to solve this new problem. The transformation consists of mapping a continuous variable into an ordinal variable by grouping its values into an appro...

We have worked with the local access network design problem with two cable technologies. This is an optimization problem in graphs that consists of linking an origin node to a set of terminal nodes which have a flow demand. There are also a set of Steiner or transshipment nodes which do not have demand. Each arc of the graph has two associated costs: a variable cost depending on the flow throug...

Expansion of commercial vegetable production in Kentucky prompted the updating of the 1998 commercial vegetable budget estimates for Kentucky’s major commercial vegetables in 2000. Updates continued throughout subsequent seasons. These estimated returns to land, labor, and management sought to convey a conservative profitability estimate for comparative purposes among existing and potential com...

The environment is rarely constant and organisms are exposed to spatial and temporal variation that will impact life-histories. It is important to understand how such variation affects the adaptation of organisms to their local environment. We compare the adaptation of populations of the ciliate Paramecium caudatum exposed to constant (23 °C or 35 °C) and temporally variable temperature environ...

This paper presents a multi-objective mixed-integer nonlinear programming model to design a group layout of a cellular manufacturing system in a dynamic environment, in which the number of cells to be formed is variable. Cell formation (CF) and group layout (GL) are concurrently made in a dynamic environment by the integrated model, which incorporates with an extensive coverage of important ...