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- Ethik (4)
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Nützt oder schadet ethisches Verhalten der Karriere und dem Erfolg der Mitarbeiter und ihrer Unternehmen? Wenn man gerade die letzten 10 Entwicklungsjahre in vielen Unternehmen sieht, könnte man spontan die Meinung vertreten, dass Ethik und Moral der Karriere eher schadet, legt man den Maßstab an moralische Qualitäten des täglichen Handelns.
Wesch D, Althaus M, Miranda P, Cruz-Muros I, Fronius M, Gonzalez-Hernandez T, Clauss WG, de la Rosa DA, Giraldez T. Differential N termini in epithelial Na+ channel delta-subunit isoforms modulate channel trafficking to the membrane. Am J Physiol Cell Physiol 302: C868-C879, 2012. First published December 7, 2011; doi: 10.1152/ajpcell.00255.2011.-The epithelial Na+ channel (ENaC) is a heteromultimeric ion channel that plays a key role in Na+ reabsorption across tight epithelia. The canonical ENaC is formed by three analogous subunits, alpha, beta, and gamma. A fourth ENaC subunit, named delta, is expressed in the nervous system of primates, where its role is unknown. The human delta-ENaC gene generates at least two splice isoforms, delta(1) and delta(2), differing in the N-terminal sequence. Neurons in diverse areas of the human and monkey brain differentially express either delta(1) or delta(2), with few cells coexpressing both isoforms, which suggests that they may play specific physiological roles. Here we show that heterologous expression of delta(1) in Xenopus oocytes and HEK293 cells produces higher current levels than delta(2). Patch-clamp experiments showed no differences in single channel current magnitude and open probability between isoforms. Steady-state plasma membrane abundance accounts for the dissimilarity in macroscopic current levels. Differential trafficking between isoforms is independent of beta- and gamma-subunits, PY-motif-mediated endocytosis, or the presence of additional lysine residues in delta(2)-N terminus. Analysis of delta(2)-N terminus identified two sequences that independently reduce channel abundance in the plasma membrane. The delta(1) higher abundance is consistent with an increased insertion rate into the membrane, since endocytosis rates of both isoforms are indistinguishable. Finally, we conclude that delta-ENaC undergoes dynamin-independent endocytosis as opposed to alpha beta gamma-channels.
Germany
(2012)
CSR als Führungskonzept
(2012)
Eine neue Kultur der Verantwortung – Was Politik und Gesellschaft von Unternehmen erwarten müssen
(2012)
Die Frage der Wertorientierungen wirtschaftlichen und politischen Handelns gewinnt immer dann ein öffentliches Interesse, wenn soziale Probleme oder Konflikte von existenzieller Bedeutung für die Betroffenen auftreten. Ist es richtig, das Unternehmenswohl höher einzustufen als das Wohl der Mitarbeiter und ihrer Familien?
Vermitteln von Werten
(2012)
Designing stereoscopic information visualization for 3D-TV: What can we learn from S3D gaming?
(2012)
This paper explores graphical design and spatial alignment of visual information and graphical elements into stereoscopically filmed content, e.g. captions, subtitles, and especially more complex elements in 3D-TV productions. The method used is a descriptive analysis of existing computer- and video games that have been adapted for stereoscopic display using semi-automatic rendering techniques (e.g. Nvidia 3D Vision) or games which have been specifically designed for stereoscopic vision. Digital games often feature compelling visual interfaces that combine high usability with creative visual design. We explore selected examples of game interfaces in stereoscopic vision regarding their stereoscopic characteristics, how they draw attention, how we judge effect and comfort and where the interfaces fail. As a result, we propose a list of five aspects which should be considered when designing stereoscopic visual information: explicit information, implicit information, spatial reference, drawing attention, and vertical alignment. We discuss possible consequences, opportunities and challenges for integrating visual information elements into 3D-TV content. This work shall further help to improve current editing systems and identifies a need for future editing systems for 3DTV, e.g., live editing and real-time alignment of visual information into 3D footage.