We study a variant of online bin packing, called colorful bin packing. In this problem, items that are presented one by one are to be packed into bins of size 1. Each item i has a size si ∈ [0, 1] and a color ci ∈ C, where C is a set of colors (that is not necessarily known in advance). The total size of items packed into a bin cannot exceed its size, thus an item i can always be packed into a ...

Mohammed Ali and Venkat Narayan describe the challenge of implementing evidence-based interventions for prevention for the large number of people at increased risk of type 2 diabetes.

We consider three variants of the open-end bin packing problem. Such variants of bin packing allow the total size of items packed into a bin to exceed the capacity of a bin, provided that a removal of the last item assigned to a bin would bring the contents of the bin below the capacity. In the first variant, this last item is the minimum sized item in the bin, that is, each bin must satisfy th...

collapse of egyptian‘s old system and mubarak’s 30 years government, was making the hopes in the mind of revolutionaries that goals of revolution will be available.holding free election was one of these goals that with electing mohammed morsi from muslim brotherhoods for presidential office was accomplished. however, after a year, the elected president mohammed morsi was faced with the protests...

Endodontics is currently in the midst of its own revolution. After this discipline is recognized as a specialty, the technological advances were made routinely. The advent of Nickle titanium files, rotary instrumentation, radiovisiography, endoscope and clinical microscope have changed the way in which the endodontics is practiced. This progress has increased both productivity and quality of ca...

Many combinatorial optimization problems such as the bin packing and multiple knapsack problems involve assigning a set of discrete objects to multiple containers. These problems can be used to model task and resource allocation problems in multi-agent systems and distributed systems, and can also be found as subproblems of scheduling problems. We propose bin completion, a branch-and-bound stra...

Background: The conflict in Syria is the largest driver of displacement worldwide with 4.1 million Syrian refugees, more than 6.5 million internally displaced people (IDPs), and 13.5 million people in need (PiN) of protection and humanitarian assistance inside Syria. Over the past decade, cash-based interventions (CBIs), including both conditional and unconditional cash transfers and voucher pr...