We conducted an experiment in which children and adults were asked to learn a set of categories for which a single-feature rule (the criterial attribute) or overall family resemblance would allow for perfect performance. Test stimuli were presented after the category was learned and were designed such that the information provided by the rule conflicted with the information provided by the fami...

Members of the family Laccophyllidae are small, solitary rugose corals with stratigraphic ranges from Silurian to Permian. Among the laccophyllids, axial ends of major septa are united in an aulos and dissepiments may be absent or present. Minor septa can be contratingent and sometimes are small or in some genera are absent. Septa and aulos may be thick or thin. In this study, Famennian rugose...

Using comprehensive digital sales data by time and vintage on the US, Canada, and 15 European countries, we infer the evolution of music vintage quality, finding that vintage service flow has increased since 2000. We explain the result with unpredictability of music quality at the time of investment along with growing releases. Evidence shows a) products with modest prospects at release from ar...