There exist several options for local antibiotic therapy in orthopaedic and trauma surgery. Over the past years, the use of antibiotic-impregnated bone grafts (AIBGs) has become a popular procedure in the treatment of bone and joint infections. A major advantage of AIBGs involves the possibility of impregnation of various antibiotics depending on the sensitivity profile of the causative organis...

It is known that electron interactions can cause a perfect spin polarization of the Fermi surface metal. In such situation only half non-interacting available, and thus this phase commonly referred to as 'half-metal'. Here we argue that, in multi-band electronic systems with nesting, further 'fractionalization' possible. Taking AA bilayer graphene convenient test case, demonstrate under suitabl...