Abstract The good of those who are worse off matters more to the overall than better does. But being one’s fellows is not itself bad; nor inequality do differences in well-being matter when lower an absolute sense. Instead, relatively worse-off weighs heavily better-off does, virtue fact that former off. This paper articulates and defends view just described.

We explore two ways of incorporating parallelism into priority queues. The rst is to speed up the execution of individual priority operations so that they can be performed one operation per time step, unlike sequential implementations which require O(log N) time steps per operation for an N element heap. We give an optimal parallel implementation that uses a linear array of O(log N) processors....

population growth, industrial pollution and high-energy consumption, cause the release of significant amounts of pollutants in the environment. power plants play an important role in the release of pollutants such as sulfur dioxide, nitrogen oxides, and carbon dioxide. if the necessary measures in the field of prevention and control do not be implemented, human health and other living creatures...