We then extend quota mechanisms to randomized settings, and show that the random serial dictatorship quota mechanisms (RSDQ) are envyfree, strategyproof, and ex post efficient for any number of agents and objects and any quota system, proving that the well-studied Random Serial Dictatorship (RSD) satisfies envyfreeness when preferences are lexicographic..

Nor are there hardly any who either treat of mutation or mixtion of sexes, who have not left some mention of this point […]

Many genes with reproductive roles also have antibacterial and immune functions, which indicate that the threat of microbial attack on the sperm or egg may be a major influence on rapid evolution during reproduction.

Quoting documents received from behind the Bamboo Curtain, the sources said that the number of casualties in the area of Tangshan, Peiping, Tientsin and Fengnan “was very great and could not be immediately estimated.”