Surface Electronic Structure Engineering of Manganese Bismuth Tellurides Guided by Micro-Focused Angle-Resolved Photoemission.

Modification of the electronic structure of quantum matter by ad atom deposition allows for directed fundamental design of electronic and magnetic properties. This concept is utilized in the present study in order to tune the surface electronic structure of magnetic topological insulators based on MnBi Te . The topological bands of these systems are typically strongly electron-doped and hybridized with a manifold of surface states that place the salient topological states out of reach of electron transport and practical applications.

Ultrasonography Performed by Military Nurses in Combat Operations: A Perspective for the Future?

Introduction: In current French military operations, it is not uncommon for military nurses (MNs) alone to be required to support soldiers in isolated areas. At a time when advanced practice nurses in the civilian sector develop extended skills, we asked MNs about their willingness to be trained in pointof- care ultrasound (POCUS).

Methods: We conducted a webbased survey from 1 November 2018 to 1 December 2018, including all MNs deployed in Operation Barkhane.

Cs diffusion mechanisms in UO investigated by SIMS, TEM, and atomistic simulations.

Experimental investigations and atomistic simulations are combined to study the cesium diffusion processes at high temperature in UO. After Cs implantation in UO samples, diffusion coefficients are determined using the depth profile evolution after annealing as measured by secondary ion mass spectrometry. An activation energy of 1.

Improved SMTB-Q model applied to oxygen migration and pressure phase transitions in UO.

The second-moment tight-binding variable-charge (SMTB-Q) interatomic potentials have been implemented in the molecular dynamics (MD) code LAMMPS in order to study the static and dynamical properties of uranium dioxide UO. With respect to a previous work on UO the SMTB-Q model has been slightly modified in introducing a splitting energy of the U 5f  orbitals. This improvement results in a better description of the electronic structure of UO namely the gap estimation which is now close to the experimental value (~2 eV).

Effect of the Oxygen Potential on the Mo Migration and Speciation in UO and UO.

Molybdenum is an abundant element produced by fission in the nuclear fuel UO in a pressurized water reactor. Although its radiotoxicity is low, this element has a key role on the fuel oxidation and other fission products migration, in particular in the case of an accidental scenario. This study aims to characterize the behavior of molybdenum in uranium dioxide as a function of environmental conditions (oxygen partial pressure, high temperature, UO oxidation) typical of an accidental scenario.