We investigate many-body properties of equally populated three-component fermions with attractive three-body contact interaction in one dimension.A diagrammatic approach suggests the possible occurrence of Cooper triples at low temperature, which are three-body counterparts of Cooper pairs with a two-body attraction.We develop a minimal framework t

The novel coaxial monopole antenna design with an Candles additional metal screen is presented.The radiation char- acteristics of this antenna are investigated depending on a dis- tance between the ground plane and additional metal screens, as well as on a size of the latter.Measured and calculated ra- diation patterns are compared within limits of

Research inspired by collective action theory has provoked a rethinking of premodern governance, including state formation.We briefly summarize key elements of this theoretical turn, first, by demonstrating that, as predicted by the existing theory, political collective action is enhanced when the provision of good Feeding government motivates taxp