Spherically symmetric teleparallel geometries.

We are interested in the development of spherically symmetric geometries in () teleparallel gravity which are of physical importance. We first express the general forms for the spherically symmetric frame and the zero curvature, metric compatible, spin connection. We then analyse the antisymmetric field equations (the solutions of which split into two cases, which we subsequently consider separately), and derive and analyse the resulting symmetric field equations.

Generalized teleparallel de Sitter geometries.

Theories of gravity based on teleparallel geometries are characterized by the torsion, which is a function of the coframe, derivatives of the coframe, and a zero curvature and metric compatible spin-connection. The appropriate notion of a symmetry in a teleparallel geometry is that of an affine symmetry. Due to the importance of the de Sitter geometry and Einstein spaces within General Relativity, we shall describe teleparallel de Sitter geometries and discuss their possible generalizations.

[Resilience against IT attacks in hospitals : Results from an exercise in a German university hospital].

Background: According to the legal definition healthcare systems and their components (e.g., hospitals) are part of the critical infrastructure of modern industrial nations.

Dental students and recent dental graduates' perceptions of preparedness in treating pediatric patients.

Purpose/objectives: To survey potential applicants applying to advanced education in pediatric dental programs and evaluate their preparedness upon graduating from an accredited dental school.

Methods: Attendees of a virtual externship of a University program were recruited to participate in a web-based survey. The survey collected demographic data, current levels of confidence with various pediatric clinical procedures, predicted confidence with those procedures, and number of procedures completed.

Comparing Cs binding affinity of Keggin type polyoxometalate and sodium Tetrakis(4-florophenyl)borate in solution and from Cs-doped pure phase vermiculite.

We assessed the aptitude of cesium (Cs) binding by Keggin type polyoxometalates (POMs) and compared the results with the Cs binding by sodium tetrakis(4-fluorophenyl)-borate (Na-TFPB). In this work, we aimed to establish a system to treat radioactive Cs contaminated soil with POMs economically. We evaluated the effect of initial Cs concentration (0.