In genetic studies, the variation in genotypes may not only affect different inheritance patterns in qualitative traits, but may also affect the age-at-onset as quantitative trait. In this article, we use standard cross designs, such as backcross or F2, to propose some hazard regression models,...

Many observers have recently noted that the international system is evolving into a multipolar world. At the same time, the notion of balance of power is being severely criticized for its vagueness and inconsistency. Seven empirically testable propositions which exemplify refined and narrowed...