Sleeptracking – Zur digitalen Vermessung des Schlafs

Der Beitrag rekonstruiert und reflektiert die bisherigen Forschungen zu Selbstvermessung und Quantified Self. Davon ausgehend wird die Differenz von Verfügbarkeit/Unverfügbarkeit, wie sie kürzlich Hartmut Rosa vorgelegt hat, für die Beschreibung von Schlaftracking herangezogen. Dies mündet in einen eher generalisierenden Ausblick, der Self Tracking als Umgang mit anthropophilen Medien deutet. Diese Perspektive erlaubt einen Blick auf gänzlich neue Selbstverhältnisse, die weniger als Ausdruck "sozialer Kontingenz" verstanden werden können und vielmehr als Umgang mit "personaler Kontingenz" begriffen werden sollten. &nbsp

Maker Literacy: Complexity Competence through Maker Education

Der Aufsatz führt in das Konzept der Maker-Literacy ein. Damit soll das Verständnis digitaler Bildung um die Dimension des Machen-Könnens im Sinne eigenmächtiger Eingriffsmöglichkeiten in digitale Kultur erweitert werden. Making, verstanden als digitales Basteln, stellt in dieser Perspektive produktive Einübungsweisen in digitale Kultur in Aussicht, die durch eine spezifische Komplexitätskompetenz gekennzeichnet werden können. Um diese These argumentativ nachvollziehbar zu gestalten, verfolgt der Text einen Dreischritt: Ausgehend von einer Positionierung in der digitalen Kultur (1) entwickelt er einerseits eine Perspektive auf Making als digitales Basteln und stellt andererseits das genutzte Literacy-Konzept vor (2). Anhand einer Kontrastierung mit der Literalität des Schreibens und Lesens wird eine spezifische Maker-Literalität entwickelt und präsentiert, die Making als wichtige Komponente des Umgangs mit und der Einübung in digitale(r) Kultur beschreibt (3).The paper introduces the concept of maker literacy in order to expand digital education by the dimension of making. Making, understood as digital tinkering, in this perspective holds out the prospect of productive ways of practicing digital culture that can be characterized by a specific complexity competence. In order to make this thesis argumentatively comprehensible, the text follows a three-step approach: Starting from positioning in digital culture (1), it develops a perspective on Making as digital tinkering on the one hand and introduces the literacy concept used on the other (2). By contrasting Making with the literacy of writing and reading, a specific Maker literacy is developed and presented, which describes Making as an important component of dealing with and practicing digital culture (3)

Digital Twins for Internal Transport Systems: Use Cases, Functions, and System Architecture

Internal transport systems are an essential part of intralogistics in production and distribution facilities. These are characterized by a variety of technologies as well as a multitude of interactions with other processes, such as warehouse, picking, and production processes. Therefore, resource planning and control of these systems is complex, especially for discontinuous conveyors. In this task, users can be supported by Digital Twins for decision-making, as they are suitable for investigating both future system states and possible actions. However, relevant use cases that are generally applicable across sectors as well as a generic system architecture for Digital Twins for resource planning and process control of in-plant transport systems have not yet been sufficiently investigated. In this paper, use cases are presented, relevant functions defined, and, finally, a generic functional and a logical reference architecture described. This is conducted with the design science in information systems research method together with a Systems Engineering approach. The use cases are determined at industrial partners of the research project TwInTraSys, which explores Digital Twins for the planning and control of internal transport systems. They are generalized and, thus, also applicable to other production and distribution facilities in different sectors. Further, the reference architecture can provide a basis for the successful implementation of the Digital Twin

Structure of the nucleon in chiral perturbation theory

We discuss a renormalization scheme for relativistic baryon chiral perturbation theory which provides a simple and consistent power counting for renormalized diagrams. The method involves finite subtractions of dimensionally regularized diagrams beyond the standard modified minimal subtraction scheme of chiral perturbation theory to remove contributions violating the power counting. This is achieved by a suitable renormalization of the parameters of the most general effective Lagrangian. As applications we discuss the mass of the nucleon, the $\sigma$ term, and the scalar and electromagnetic form factors.Comment: Invited talk given by S. Scherer at the Fourth International Conference on Perspectives in Hadronic Physics, Trieste, Italy, 12 -16 May 2003, 8 pages, 7 figure

DO THEY REALLY CARE ABOUT TARGETED POLITICAL ADS? INVESTIGATION OF USER PRIVACY CONCERNS AND PREFERENCES

Reliance on targeted political ads has skyrocketed in recent years, leading to negative reactions in media and society. Nonetheless, only few studies investigate user privacy concerns and their role in user acceptance decisions in the context of online political targeting. To fill this gap, in this study we explore the magnitude of privacy concerns towards targeted political ads compared to “tradi-tional” targeting in the product context. Surprisingly, we find no notable differences in privacy concerns between these use purposes. In the next step, user preferences over ad types are elicited with the help of a discrete choice experiment in the mobile app adoption context. Among others, our findings from simulations on the basis of a mixed logit model cautiously suggest that while targeted political advertising is perceived as somewhat less desirable by respondents, its presence does not consequentially deter users from choosing such an app, with user preferences being high-ly volatile. Together, these results contribute to a better understanding of users’ privacy concerns and preferences in the context of targeted political advertising online. Acknowledgment This work has been funded by the Federal Ministry of Education and Research of Germany (BMBF) under grant no. 16DII116 (“Deutsches Internet-Institut”)

Power counting in baryon chiral perturbation theory including vector mesons

It is demonstrated that using a suitable renormalization condition one obtains a consistent power counting in manifestly Lorentz-invariant baryon chiral perturbation theory including vector mesons as explicit degrees of freedom.Comment: 8 pages, REVTeX 4, 3 figure