The influence of sex and self-control on the efficacy of nudges in lowering the energy content of food during a fast food order.

An experiment aimed at reducing calorie content of a food order was performed by introducing interventions at the fast food ordering screen on a tablet computer. Modifications included a virtual order assistant, a color-coded system and highlighting low-calorie choices. Participants of the study were 401 university students.

Synthesis of Catenane Structures via Ring-Closing Metathesis.

This study presents a detailed description of a synthetic strategy to obtain catenane architectures through ring-closing metathesis. The approach is based on phenanthroline-based ligands containing terminal olefinic units that were designed to coordinate in a tetrahedral arrangement around a copper atom. Treatment of the assembled copper complexes with ruthenium catalyst 1 resulted in [2]catenates in high yields of 88-92%.