Production planning is often challenging for small medium enterprises (SMEs) company. Most of the SMEs are having difficulty in determining optimal level production output which can affect their business performance. Product mix optimization one main key planning. Many company have used linear programming model combination various products that need to be produced order maximize profit. Thus, t...

International Family Planning Perspectives Although governments develop family planning policies to guide program design and implementation, these policies can have both intended and unintended consequences. As a result, policies may need periodic revision to achieve the desired outcomes. Over the last two decades, the government of Peru has instituted a series of laws and policies designed to ...

The analyses reported in this article assessed the cost, case mix, and quality interrelationships among Colorado nursing homes. A unique set of patient-level data was collected specifically to measure case mix and quality. Case mix was found to be strongly associated with cost, accounting for up to 45 percent of the variation in cost per patient day. The relationship between quality and cost wa...

Hyperspectral image sensors provide images with a large number of contiguous spectral channels per pixel and enable information about diierent materials within a pixel to be obtained. The problem of spectrally unmixing materials may be viewed as a speciic case of the blind source separation problem where data consists of mixed signals (in this case minerals) and the goal is to determine the con...

We consider mixed-integer sets of the type MIX = {x : Ax ≥ b; xi integer, i ∈ I}, where A is a totally unimodular matrix, b is an arbitrary vector and I is a nonempty subset of the column indices of A. We show that the problem of checking nonemptiness of a setMIX is NP-complete even in the case in which the system describes mixed-integer network flows with half-integral requirements on the node...