In previous work, the authors derived a mathematical expression for the optimal (or "saturation") number of reinsurers for a given number of primary insurers (see Powers and Shubik, 2001).In the current article, we show SHORTS analytically that, for large numbers of primary insurers, this mathematical expression provides a "square-root rule"; i.e.,

Early home visits provided by public health nurses (PHNs) around the world have been proven to positively impact physical, social, emotional and mental health outcomes of mothers and babies.Most of the research has focused on home visiting programs delivered by public health nurses and lay home visitors to support at risk or targeted mothers.Little

Dopamine D1 and D2 receptor immunohistochemistry and Golgi techniques were used to study the structure of the adult rat arcuate-median eminence complex, and determine the distribution of the dopamine D1 and D2 receptor immunoreactivities therein, particularly in relation to the tubero-infundibular dopamine neurons.Punctate dopamine D1 and D2 recept