We show that a two-level non-Hermitian Hamiltonian with constant off-diagonal exchange elements can be analyzed exactly when the underlying exceptional point is perfectly encircled in the complex plane. The state evolution of this system is explicitly obtained in terms of an ensuing transfer matrix, even for large encirclements, regardless of adiabatic conditions. Our results clearly explain th...

A strong–metal support interaction construction was induced via ultrasonication in water as described by Zhenzhen Yang, Sheng Dai et al. their Communication (e202214322). The encapsulation degree of metal nanoparticles reducible oxide overlayers can be modulated the parameters. facile tunability offers enhanced activity and selectivity diverse catalytic hydrogenation applications. cover picture...

We derive, in 2+1 dimensions, classical solutions for metric and motion of two or more spinning particles, in the conformal Coulomb gauge introduced previously. The solutions are exact in the N -body static case, and are perturbative in the particles’ velocities in the dynamic two-body case. A natural boundary for the existence of our gauge choice is provided by some “CTC horizons” encircling t...

An eight-year-old, male, thoracic limb amputee Whippet presented with a traumatic lateral luxation of the scapulohumeral joint. Surgical reduction and stabilisation of the shoulder joint by means of a modified Campbell scapulohumeral prosthesis and capsulorrhaphy was unsuccessful and reluxation of the shoulder joint occurred. Subsequent surgical stabilisation using bicipital tendon transpositio...

In cell cultures of Detroit 6, KB, and HeLa cells, treatment with certain amounts of 5Fluorouracil resulted in the appearance of a strikingly distinct halo or chromophobic area, entirely encircling the compacted or contracted nucleoli, before the ultimate disintegration of the cells. ∗PMID: 4221925 [PubMed indexed for MEDLINE] Copyright c ©OKAYAMA UNIVERSITY MEDICAL SCHOOL Acta Med. Okayama 19,...

the opacities were tablets trapped in the right colon by a neoplastic stricture (Fig. 2). At laparotomy a tumour was found encircling and obstructing the colon 12 cm above the ileocaecal valve. A right hemicolectomy was performed. The tumour was 8 cm long and was invading but not perforating the muscle coat. The lymph nodes were not involved. Several of the tablets were enmeshed in the papillae of