An Early Iowa Flag

Flag Algebras: An Interim Report

For the most part, this article is a survey of concrete results in extremal combinatorics obtained with the method of flag algebras. But our survey is also preceded, interleaved and concluded with a few general digressions about the method itself. Also, instead of giving a plain and unannotated list of results, we try to divide our account into several connected stories that often include histo...

Early Geological Explorations of the Silurian System in Iowa

The Early History and Recent Trends in Iowa Herpetology

Iowa State Is an Equal Opportunity Employer

This study investigates the performance of Gale-Shapley matching in an evolutionary market context. Computational experimental findings are reported for an evolutionary match-and-play trade network game in which resource-constrained traders repeatedly choose and refuse trade partners in accordance with Gale-Shapley matching, participate in risky trades modelled as twoperson prisoner’s dilemma g...

The Crossveinless Polygenes in an Iowa Population1

A natural population of Drosophila melanogaster was tested for the presence of crossveinless (cue) alleles over the course of a summer. Approximately 8% of the wild-caught females tested carried enough cue alleles to produce true-breeding crossveinless lines. In some cases, different isofemale lines produced identical cue strains. Also, differences were sometimes observed among independently se...