Computer modeling of materials potentially can have an enormous impact in identifying new materials, and understanding or controlling their behavior. Issues include how the material fractures or decomposes, and its optical, electrical, magnetic, and thermal properties. Controlling and modifying materials behavior implies several challenges to materials simulations: predicting bond breaking and ...

The design and use of a new device for obtaining corneoscleral buttons for storage and corneal discs for keratoplasty from neonatal and adult donor eyes is described. The device is simple to use and eliminates most of the difficulties in handling infant donor eyes. It thus minimises the risk of damage to the corneal endothelium and the formation of stretch striae, which reduce the quality of th...

Background: Some microorganisms can adhere to food handling surfaces forming biofilms that pose a safety challenge. This study was done to evaluate bacterial biofilm formation in milking equipments in Lilongwe, Malawi. Methods: Pooled milk (n=54) and water (n=60) samples were collected from households and milk bulking groups in Lilongwe, Malawi. Swabbing (n=46) and rinsing (n=16) were done on ...

This paper presents a genetic algorithm approach to the location of a single input and output station for each department within a facility design such that material handling costs are minimized. This problem is an NP-hard combinatorial problem. A genetic algorithm (GA) is shown to be an effective and efficient optimization method when compared to integer programming and to a greedy constructiv...