New compliance management system of the University Hospital Frankfurt, Germany

The meaning of Corporate Governance is all values and principles guiding or regulating good and responsible business management. Clearly defined roles and responsibilities for managing compliance, risks and checks is the prerequisite for the latter. For that reason, a compliance management system was set up at the University Hospital Frankfurt in 2015

Die Ausstellung «Byzantinisch-russische Monumentalmalerei», Berlin 1926

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Provision of deterministic services for voice over IP using priority queues

This paper discusses an approach for resource allocation and management in IP networks, particularly in the context of IP telephony. We show that it is possible to provide deterministic real time services without substantial changes to the current Internet infrastructure using static priority scheduling. All IP telephony traffic is mapped to (unidirectional) virtual channels that allow simple aggregation schemes and subdivision in two parts. We present a calculus to compute the effective bandwidth needed to serve reviewed by simulations. It is used for access control purposes and has the benefit that is can be applied to each node of a network not depending on the other nodes. The virtual channels can logically be subdivided in two parts. Thus, signaling does not need to run from one end to the other, but from both ends simultaneously to the point of aggregation in between. It is shown that the approach can fulfill the requirements of a network build from campus networks connected via a backbone network

Static Dielectric Constant of β-Ga2O3 Perpendicular to the Principal Planes (100), (010), and (001)

The relative static dielectric constant ℇr of β-Ga2O3 perpendicular to the planes (100), (010), and (001) is determined in the temperature range from 25 K to 500 K by measuring the AC capacitance of correspondingly oriented plate capacitor structures using test frequencies of up to 1 MHz. This allows a direct quantification of the static dielectric constant and a unique direction assignment of the obtained values. At room temperature, ℇr perpendicular to the planes (100), (010), and (001) amounts to 10.2 ± 0.2, 10.87 ± 0.08, and 12.4 ± 0.4, respectively, which clearly evidence the anisotropy expected for β-Ga2O3 due to its monoclinic crystal structure. An increase of ℇr by about 0.5 with increasing temperature from 25 K to 450 K was found for all orientations. Our ℇr data resolve the inconsistencies in the previously available literature data with regard to absolute values and their directional assignment and therefore provide a reliable basis for the simulation and design of devices. © The Author(s) 2019