There are two problems with current cylindrical projections for world maps. First, existing cylindrical map projections have a static height-to-width aspect ratio and do not automatically adjust their aspect ratio in order to optimally use available canvas space. Second, many of the commonly used cylindrical compromise projections show areas and shapes at higher latitudes with considerable dist...

Load control is necessary to prevent a database system from data-contention or memory-contention thrashing, caused by excessive lock conflicts or excessive buffer replacements that may occur due to temporary load peaks. The load control method that is adopted by virtually all commercial database systems is to limit the degree of multiprogramming (DMP), that is, the maximum number of transaction...

A common practice in matched case-control studies with incomplete data is to perform two analyses in parallel: a matched analysis of the complete pairs and an unmatched analysis of all subjects carried out after breaking the matching in the complete pairs. The missing-indicator method, which has the advantage of making use of the data in the incomplete pairs while still preserving the matching ...