Der Beitrag befasst sich mit einer Diskussion von Mode und Nachhaltigkeit in der Informationsund Kommunikationstechnik (IKT) am Beispiel des Eingabestifts (englisch Stylus oder Touch Pen). Die wechselhafte Entwicklungsgeschichte des Eingabestifts wirft die Frage auf, ob es sich beim Eingabestift um ein nachhaltiges Bedienkonzept der IKT handelt oder ggf. nur um eine (wiederkehrende) Modeerschei...

This study quantifies the dosimetric accuracy of a commercial treatment planning system as functions of treatment depth, air gap, and range shifter thickness for superficial pencil beam scanning proton therapy treatments. The RayStation 6 pencil beam and Monte Carlo dose engines were each used to calculate the dose distributions for a single treatment plan with varying range shifter air gaps. C...

A high-order scheme for direct numerical simulations of turbulent combustion is discussed. Its implementation in the massively parallel and publicly available PENCIL CODE is validated with the focus on hydrogen combustion. This is the first open source DNS code with detailed chemistry available. An attempt has been made to present, for the first time, the full set of evolution and auxiliary equ...

The three pencils of K3 surfaces minimal discriminant whose general element covers at least one Enriques surface are Kond\={o}'s I and II, the Ap\'ery--Fermi pencil. We enumerate investigate all covered by their elements.

Particles are used in medical application for cancer treatment. Radiotherapy aims to deliver a high dose in a well-defined target volume while sparing the healthy surrounding tissues. Compared to the conventional radiotherapy (X-ray), protons show superior clinical performances thanks to their inherent depth dose characteristic (Bragg peak). In proton therapy, several techniques can be used to ...