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The Names of the Dnieper Rapids in Chapter 9 of Constantine Porphyrogenitus’ De administrando imperio

New interpretations are given for [ν]Έσσουπῆ ‘watching’, ‘the guard’; Ἀειφὸρ ‘the ever-shallow rapids’; βαρουφόροϛ – βουλνηπράχ ‘the bare rapids; Λεάντι, βερούτζ ‘the violently rushing rapids’. Στρούκουν has a Greek ending and is not a dative plural. Ναστρεζή is a collective formation with a diminutive sense. Both names mean ‘the small rapids’. The reduced vowels are not manifested in these name

Four Instruments in Martín Cortés' Breve Compendio de la Sphera and a Rule for Finding the Age of the Moon

This paper investigates and discusses four instruments found in a sixteenth century Spanish book of navigation. The night clock is a rather standard application of similar instruments known since the fourteenth century in Europe. Cortés’ explanation of the causes of the deviation of the magnetic and geographical north is quite original. His instrument to correct for that the Polaris deviates from

The Kruppel-associated box repressor domain can trigger de novo promoter methylation during mouse early embryogenesis

The Krüppel-associated box (KRAB) domain is a transcriptional repression module responsible for the DNA binding-dependent gene silencing activity of hundreds of vertebrate zinc finger proteins. We previously exploited KRAB-mediated repression within the context of a tet repressor-KRAB fusion protein and of lentiviral vectors to create a method of external gene control. We demonstrated that with th

De Gustibus and Disputes about Reference Dependence

Existing tests of reference-dependent preferences assume universal loss aversion. This paper examines the implications of heterogeneity in gain-loss attitudes for such tests. In experiments on labor supply and exchange behavior, we first measure gain-loss attitudes and then study a canonical treatment effect that distinguishes different models of reference dependence. We document substantial heter