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"Relation algebras are algebras arising from the study of binary relations. They form a part of the eld of algebraic logic, and have applications in proof theory, modal logic, and computer science. An interesting problem...

BACKGROUND: Most patients with non-small-cell lung cancer have no response to the tyrosine kinase inhibitor gefitinib, which targets the epidermal growth factor receptor (EGFR). However, about 10 percent of patients have...

Baron and Kenny’s procedure for determining if an independent variable affects a dependent variable through some mediator is so well known that it is used by authors and requested by reviewers almost reflexively. Many ...