Incommmensurability and unconventional superconductor to insulator transition in the hubbard model with bond-charge interaction.

We determine the quantum phase diagram of the one-dimensional Hubbard model with bond-charge interaction X in addition to the usual Coulomb repulsion U>0 at half-filling. For large enough X

Simple and complex dislocations of the carpus.

The authors report 33 dislocations of the carpus; 9 simple lunate dislocations and 24 complex fracture dislocations. The number and variety of the lesions and, in particular, the variety of the types of treatment carried out allow us to draw several conclusions regarding the correct management of these rare lesions based on a long-term evaluation of the results.

Ischaemic isolated retraction of the abductor digiti minimi.

A case of hyperabduction of the little finger due to ischaemic retraction is presented. Operative release of the abductor digit minimi produced good result. The differential diagnosis is discussed.