TY - JOUR A1 - Weber, Karsten A1 - Drüeke, Ricarda A1 - Langewitz, Oliver A1 - Nagenborg, Michael T1 - Konvergente Medien, Fragmentierung der Öffentlichkeit und medienethische Anmerkungen JF - Merz Medien + Erziehung, Zeitschrift für Medienpädagogik N2 - Medienkonvergenz fördert die Entwicklung neuer Anbieter, die sich nicht nur als Konkurrenz, sondern als Antithese zu traditionellen Massenmedien sehen. Ihnen wird die Hoffnung entgegengebracht, zur Integration der medial vermittelten Öffentlichkeit beizutragen, andererseits existieren Befürchtungen, dass sie die bereits bestehende Fragmentierung der Öffentlichkeit verstärken. Am Beispiel der politischen Kommunikation in konvergenten Medien wird die Plausibilität entsprechender Prognosen untersucht. Y1 - 2009 VL - 53 IS - 6 ER - TY - JOUR A1 - Weber, Karsten T1 - Im Netz von Clans BT - Global verteilte Gemeinschaften statt globaler Gesellschaft JF - iz3w - Zeitschrift zwischen Nord und Süd Y1 - 2009 UR - https://www.iz3w.org/zeitschrift/ausgaben/315_digitale_welten/faa IS - 315 SP - 20 EP - 23 ER - TY - JOUR A1 - Weber, Karsten A1 - Nagenborg, Michael A1 - Drüeke, Ricarda A1 - Langewitz, Oliver T1 - Ubiquitous Media BT - Ökonomische und technische Rahmung sozialer Handlungsmöglichkeiten JF - Merz Medien + Erziehung, Zeitschrift für Medienpädagogik N2 - Die durch das Internet und Web 2.0 mit angestoßene Medienkonvergenz zwingt die Medien- und Contentindustrie zur stetigen Bereitstellung neuer medialer Inhalte; die stetig wachsende Nachfrage zu decken wird über deren unternehmerischen Erfolg entscheiden. Es wird ein Szenario entwickelt, in dem die Konsumenten gleichzeitig Produzenten der In- halte sind und dabei Kommunikationsinfrastrukturen wie Mobiltelefone nutzen. Es werden die weitreichenden sozialen Konsequenzen dieser Entwicklung skizziert. Y1 - 2009 UR - https://www.researchgate.net/publication/235550940_Ubiquitous_Media_-_Okonomische_und_technische_Rahmung_sozialer_Handlungsmoglichkeiten VL - 53 IS - 6 SP - 102 EP - 110 ER - TY - JOUR A1 - Weber, Karsten T1 - Gewalt in den Medien BT - methodologische, wissenschaftstheoretische und medienethische Reflektionen JF - Ethica Y1 - 2010 VL - 18 IS - 2 SP - 1 EP - 17 ER - TY - JOUR A1 - Rödiger, Karl-Heinz A1 - Weber, Karsten T1 - und noch einmal: Was ist I&G? BT - Ein Blick zurück zur Klärung einer aktuellen Frage JF - FIfF Kommunikation Y1 - 2010 UR - https://www.researchgate.net/publication/263818401_und_noch_einmal_Was_ist_IG_Ein_Blick_zuruck_zur_Klarung_einer_aktuellen_Frage VL - 27 IS - 1 ER - TY - JOUR A1 - Weber, Karsten A1 - Drüeke, Ricarda T1 - Konvergente Medien, Fragmentierung der Öffentlichkeit und medienethische Anmerkungen JF - Zeitschrift für Kommunikationsökologie und Medienethik Y1 - 2010 VL - 12 IS - 1 SP - 1 EP - 7 ER - TY - JOUR A1 - Orwat, Carsten A1 - Raabe, Oliver A1 - Buchmann, Erik A1 - Anandasivam, Arun A1 - Freytag, Johan-Christoph A1 - Helberger, Natali A1 - Ishii, Kei A1 - Lutterbeck, Bernd A1 - Neumann, Dirk A1 - Otter, Thomas A1 - Pallas, Frank A1 - Reussner, Ralf A1 - Sester, Peter A1 - Weber, Karsten A1 - Werle, Raymund T1 - Software als Institution und ihre Gestaltbarkeit JF - Informatik-Spektrum N2 - Software regelt immer mehr zwischenmenschliche Interaktionen. Üblicherweise werden die Funktionsmechanismen, Wirkungen und Gestaltungsoptionen von Regeln in der Institutionenforschung behandelt. In diesem Artikel soll beleuchtet werden, inwieweit sich Ansätze der Institutionenforschung auf Software anwenden lassen und was sich aus dieser Forschungsperspektive zu den Regelungswirkungen und Gestaltungsoptionen von Software ableiten lässt. Y1 - 2010 U6 - https://doi.org/10.1007/s00287-009-0404-z VL - 33 IS - 6 SP - 626 EP - 633 ER - TY - JOUR A1 - Weber, Karsten T1 - Information Ethics in a Different Voice, Or BT - Back to the Drawing Board of Intercultural Information Ethics JF - IRIE - International Review of Information Ethics N2 - Within the information ethics community one can observe a mainstream discussion including some fundamental presuppositions which appear to be something like dogmas. The most important of these dogmas seems to be that we must create a new kind of intercultural information ethics. It is often argued that (comparative) studies have shown that different cultures, according to culturally determined norms and values, react in different ways to the impacts of ICT; it is stressed that an intercultural information ethics must take these cultural particularities into account. But in the paper at hand it shall be argued that taking cultural differences into consideration does not create a necessity to invent a new intercultural information ethics. On the contrary it shall be claimed that we already know several intercultural ethics which only have to be applied to ICT and its impact to societies. Y1 - 2010 VL - 13 IS - 1 SP - 6 EP - 11 ER - TY - JOUR A1 - Weber, Karsten A1 - Haug, Sonja T1 - Geocaching und Raumnutzung BT - Freizeitbeschäftigung mit Konfliktpotenzial JF - Standort - Zeitschrift für angewandte Geographie N2 - Geocaching ist eine Art internetbasierte Schnitzeljagd, die im öffentlichen Raum stattfindet. Der Artikel erläutert die Funktionsweise des Geocaching als Freizeitbeschäftigung und beschreibt anhand einer Datenerhebung die Verbreitung in Deutschland. Mit den stark steigenden Teilnehmerzahlen gehen Konflikte bei der Nutzung des öffentlichen Raums – insbesondere sind hiervon naturnahe Räume wie Wälder betroffen – und von Privatbesitz einher. Die Konfliktfelder werden exemplarisch aufgeführt, die Herausforderungen für die angewandte Geographie dargelegt. Durch die Anwendung neuer Technologien wie des GPS im Freizeitbereich bildet sich eine neue Form der Raumnutzung heraus. Damit verbunden sind für die angewandte Geographie noch weitgehend ungenutzte Möglichkeiten der Stadtentwicklung, des Regionalmanagements oder der Bildung. Zugleich treten mit der zunehmenden Verbreitung des Geocaching neue Konfliktfelder der Raumnutzung offen zu Tage. Y1 - 2012 U6 - https://doi.org/10.1007/s00548-012-0195-3 VL - 36 IS - 1 SP - 17 EP - 24 ER - TY - JOUR A1 - Weber, Karsten A1 - Bittner, Uta A1 - Manzeschke, Arne A1 - Rother, Elisabeth A1 - Quack, Fredericke A1 - Dengler, Kathrin A1 - Fangerau, Heiner T1 - Taking Patient Privacy and Autonomy More Seriously BT - Why an Orwellian Account Is Not Sufficient JF - American Journal of Bioethics Y1 - 2012 U6 - https://doi.org/10.1080/15265161.2012.699147 VL - 12 IS - 9 SP - 51 EP - 53 ER - TY - PAT A1 - Hornberger, Helga A1 - Thiel, Norbert A1 - Vollmann, Markus T1 - Fully ceramic tooth replacement with a frame made of cer-stabilised zircon-oxide N2 - Vollkeramischer Zahnersatz mit einem Gerüst, das aus einem Gerüstmaterial aus einem Cer-stabilisierten Zirkonoxid (Ce-ZrO2) mit einem Anteil von bis zu 25 Gew% Aluminiumoxid (Al2O3) bezogen auf den Anteil an ZrO2 aufgebaut ist und einem Infiltrationsglasanteil im Gerüst von 0-40 Vol% bezogen auf das Volumen des Gerüsts sowie einer auf das Gerüstmaterial abgestimmten Verblendkeramik.Die Erfindung betrifft die Verwendung von cer-stabilisiertem ZrO2 zur Herstellung von Gerüstmaterialien, die als Restauration im Dentalbereich einsetzbar sind. T2 - Vollkeramischer Zahnersatz mit einem Gerüst aus einem cer-stabilisierten Zirkonoxid Y1 - 2002 UR - https://depatisnet.dpma.de/DepatisNet/depatisnet?action=bibdat&docid=WO002002047616A3 ER - TY - PAT A1 - Aechtner, Stefan A1 - Hornberger, Helga A1 - Nagel, Emil A1 - Thiel, Norbert T1 - Composite material and method for the preparation thereof N2 - A composite material with a porous inorganic-nonmetallic matrix and a second material, characterized in that said porous inorganic-nonmetallic matrix has a bending strength of >=40 MPa as measured according to ISO 6 872; said second material is an organic material which at least partly fills the pores of said porous matrix; and said composite material has a modulus of elasticity, E, of >=25 GPa as measured according to ISO 10 477. Y1 - 2001 UR - https://depatisnet.dpma.de/DepatisNet/depatisnet?action=bibdat&docid=US020090001623A1 ER - TY - PAT A1 - Muerrle, Ulrich A1 - Hornberger, Helga T1 - Method of making a ceramic restoration N2 - Production of a dental reconstruction comprises: (a) forming a mold (12) from a model (10); (b) using (12) to make an isotropically heat-expandable replica from a ceramic precursor (14); (c) oxidizing (14) to produce an enlarged ceramic replica; (d) forming a silicone mold from this replica; (e) using (d) to make a second ceramic replica; and (f) sintering the second replica with volume reduction to form a replica identical to (10). T2 - Verfahren zur Herstellung einer Zahnrestauration aus Keramik Y1 - 2003 UR - https://depatisnet.dpma.de/DepatisNet/depatisnet?action=bibdat&docid=EP000001346702A1 ER - TY - JOUR A1 - Weber, Karsten T1 - New Mobile Devices and Surveillance BT - Questions Concerning Epistemology and Some New Challenges for Privacy and Data Protection JF - Postmodern Openings Journal N2 - Mobile devices help people to stay connected across huge distances and to socially interact while in spatially separated environments. However, compared to faceto-face-interaction, communication and interaction via mobile phones currently are still restricted. Therefore, an idea of Mann, Fung, and Lo concerning cyborglogging with camera phones shall be taken a step further. A scenario is described in which a modified version of their design is used to support social interaction across the borders of spatially separated environments in a new manner. It shall be argued that this might create a new understanding of being present at a certain place while at the same time it raises questions concerning privacy, surveillance and authenticity of experience. Y1 - 2012 VL - 3 IS - 3 ER - TY - JOUR A1 - Manzeschke, Arne A1 - Weber, Karsten A1 - Fangerau, Heiner A1 - Rother, Elisabeth A1 - Dengler, Kathrin T1 - An ethical evaluation of telemedicine applications must consider four major aspects BT - A comment on Kidholm et al. JF - International Journal of Technology Assessment in Health Care Y1 - 2013 U6 - https://doi.org/10.1017/S0266462312000773 VL - 29 IS - 1 SP - 110 EP - 111 ER - TY - JOUR A1 - Weber, Karsten T1 - What is it like to encounter an autonomous artificial agent? JF - AI & Society N2 - Following up on Thomas Nagel’s paper “What is it like to be a bat?” and Alan Turing’s essay “Computing machinery and intelligence,” it shall be claimed that a successful interaction of human beings and autonomous artificial agents depends more on which characteristics human beings ascribe to the agent than on whether the agent really has those characteristics. It will be argued that Masahiro Mori’s concept of the “uncanny valley” as well as evidence from several empirical studies supports that assertion. Finally, some tentative conclusions concerning moral implications of the arguments presented here shall be drawn KW - Autonomous artificial agent KW - Turing test KW - Uncanny valley KW - Moral responsibility Y1 - 2013 U6 - https://doi.org/10.1007/s00146-013-0453-3 VL - 28 IS - 4 SP - 483 EP - 489 ER - TY - JOUR A1 - Weber, Karsten T1 - Internet = Demokratie? JF - Ethica Y1 - 2013 VL - 21 IS - 4 ER - TY - JOUR A1 - Weber, Karsten T1 - Vorausschau und Regulierung von Innovationsprozessen im Bereich der ubiquitären Informations- und Kommunikationstechnologie JF - Modern Management Review / Dawna Nazwa - Zardądzanie i Marketing N2 - On the one hand technological innovations can create new markets and can provide for solutions of current social problems; on the other hand the can raise questions concerning environmental and/or social adequacy on short-, middle-, and long-range time scales. In or-der to strengthen the positive outcomes of innovations and to reduce or even prevent nega-tive effects, the task of technology assessment is to predict the positive as well as the nega-tive effects and repercussions of innovations as early as possible. However, it must be pre-supposed that first, it must be possible to make to a certain extent reliable predications about the future development and second, that regulatory measurements in order to strengthen the positive outcomes of innovations and to reduce or even prevent negative effects will find their respective addressees. But if one takes, for instance, ubiquitous information and com-munication technology into account it can be demonstrated that those conditions rarely can be met. This is the result of the types of innovation which take place in case of ICT as well as of the so-called Collingridge dilemma. Both factors reduce the reliability of predictions. Furthermore, regulatory measurements often do not find their addressees since the borders of the societal subsystems in which innovation take place are blurring and therefore, these subsystems often cannot be reached with mainstream regulatory approaches like laws. KW - Technikfolgenabschätzung KW - Foresight KW - Innovationsforschung und –management KW - Informations-und Kommunikationstechnologie Y1 - 2013 U6 - https://doi.org/10.7862/rz.2013.mmr.39 VL - 20 IS - 3 ER - TY - JOUR A1 - Weber, Karsten T1 - Ökonomische Überlegungen zum Wissenschaftsbetrieb BT - Immaterialgüterrechte, Wissensallmende und Informationsnachhaltigkeit JF - Modern Management Review / Dawna Nazwa - Zardądzanie i Marketing N2 - Nachhaltigkeit und nachhaltiges Wirtschaften sind spätestens seit Mitte der 1980er Jahre wichtige Konzepte sowohl wissenschaftlicher als auch politischer Debatten. Sie werden ins-besondere thematisiert, wenn es um den Umgang mit knappen materiellen Ressourcen geht – fossile Energieträger sind hierfür sowohl als endliche Ressourcen als auch als Gefährdung anderer knapper Ressourcen wie eine saubere Umwelt ein paradigmatisches Beispiel. Da es jedoch nicht nur materielle Ressourcen, sondern auch Immaterialgüter gibt, soll untersucht werden, ob Konzepte der Nachhaltigkeit und des nachhaltigen Wirtschaftens auch in Bezug auf Immaterialgüter wie Informationen und Wissen angewendet werden können. Dazu wird es notwendig sein, zunächst die spezifischen ökonomischen Eigenschaften von Informatio-nen und Wissen herauszuarbeiten. Dabei zeigt sich, dass Immaterialgüter durch Anwendung von Immaterialgüterrechten zu knappen Ressourcen gemacht werden können. Wenn aber auch Informationen und Wissen faktisch zu den knappen Ressourcen gezählt werden müs-sen, so macht es Sinn, Nachhaltigkeit auch für Immaterialgüter zu fordern – dies soll mit dem Ausdruck „Informationsnachhaltigkeit“ bezeichnet werden. Wird das Konzept der In-formationsnachhaltigkeit auf den Wissenschaftsbetrieb angewendet, so kann in Bezug auf den Wissensbestand der Wissenschaft von einer Wissensallmende gesprochen werden. Die schon länger stattfindenden Veränderungen des Wissenschaftsbetriebs und des wissenschaft-lichen Publikationswesens gefährden auf der einen Seite den Bestand der Wissensallmende; auf der anderen Seite finden sich jedoch auch Gegenreaktionen, die Versuche darstellen, bspw. durch den Open Access-Gedanken die Wissensallmende zu erhalten. Allerdings zeigt die Analyse, dass sowohl eine romantisierende Perspektive auf die Wissensallmende und Open Access als auch eine pauschale Kritik am existierenden privatwirtschaftlichen Publikationswesen falsch wären, da beide Teile des wissenschaftlichen Publikationswesens aufeinander angewiesen sind. Y1 - 2013 U6 - https://doi.org/10.7862/rz.2013.hss.55 VL - 20 IS - 4 ER - TY - JOUR A1 - Weber, Karsten T1 - Is there really a concept called "inherent ethical concern"? JF - American Journal of Bioethics Neuroscience Y1 - 2014 U6 - https://doi.org/10.1080/21507740.2013.868377 VL - 5 IS - 1 SP - 39 EP - 40 ER - TY - JOUR A1 - Weber, Karsten T1 - Normative Herausforderungen an Technik für die Pflege im Alter JF - Hauswirtschaft und Wissenschaft. Europäische Zeitschrift für Haushaltsökonomie, Haushaltstechnik und Sozialmanagement KW - Altengerechte Technik Y1 - 2014 VL - 62 IS - 3 SP - 1 EP - 8 ER - TY - JOUR A1 - Swigon, Marzena A1 - Weber, Karsten T1 - Managing Knowledge and Information by Students JF - Journal for Information & Knowledge Management N2 - The concept of Personal Knowledge and Information Management (PKIM) is based, among others, on two theories: Personal Information Management (PTM) and Personal Knowledge Management (PKM), which hitherto were both subjects of separate studies. Moreover, the concept of PKIM is related to IL, which is a concept of information skills and competences of individuals — a person who manages knowledge has to be information literate. Some of the empirical studies results in the field of PKIM, started in Poland and recently continued in Germany, are presented. As the research method an unstructured questionnaire with open questions was used. Given the results of the survey as well as taking into account the subject literature, the concepts of PIM, PKM, and Information Literacy (IL) seem to be compatible and connected with each other. Our respondents perceive Knowledge and Information as well as knowledge management (KM) and information management (IM) in the context of learning and studying as integrated areas of interests. Although they do see differences between them, interconnections and relations seem more important. Furthermore, KM and IM are recognized as tools of coping with information overload. All aspects that have repercussions on KM and IM are related to three categories: personal characteristics, environment (macro and micro environment), and knowledge and information sources. KW - personal knowledge and information KW - personal information management KW - personal knowledge management KW - Information literacy KW - students Y1 - 2014 U6 - https://doi.org/10.1142/S0219649214500300 VL - 13 IS - 4 ER - TY - JOUR A1 - Hornberger, Helga A1 - Marquis, Peter M. A1 - Franks, J. T1 - The impact of diamond-like coatings on the strength of dental ceramics JF - Journal of Dental Research Y1 - 1995 VL - 74 SP - 522 ER - TY - JOUR A1 - Hornberger, Helga A1 - Marquis, Peter M. A1 - Christiansen, Silke H. A1 - Albrecht, Manuel A1 - Strunk, Horst P. A1 - Franks, J. T1 - Microstructure of a high strength alumina-glass composite combined with a diamond like carbon coating JF - Electron Microscopy and Analysis N2 - We investigate the mechanical and microstructural properties of a diamond-like carbon coating (DLC) which is deposited by plasma enhanced chemical vapor deposition (PECVD) onto an alumina/aluminosilicate glass composite used for biomedical applications. Ball-on-ring tests yield a fracture strength that is essentially influenced by the surface topology/roughness. The surface topology of the coating is investigated by atomic force microscopy (AFM). Tribology tests and nanoindentation represent the wear resistance and hardness; these are properties that are mainly influenced by the microstructural properties of the DLC coating. This microstructure is investigated by transmission electron microscopy (TEM) and analyzed by parallel electron energy loss spectroscopy (PEELS). For the general applicability of the coated composite, the interfacial adhesion of the DLC coating on the comparably rough substrate (roughness amplitudes and wavelengths are in the micrometer range) is important. Therefore, we focus on TEM investigations that show the interface to be free of gaps and pores that we, together with a characteristic microstructure adjacent to the interface, relate to the excellent adhesion. The interlayer consists of a high density of SiC grains, part of them directly bound to the substrate, and part of them bound to other SiC grains. This interlayer is followed by an essentially different region of the coating as concerns the microstructure; this region consists of nanocrystalline diamond particles embedded in an amorphous carbon matrix. It is this heterogeneous microstructure to which we attribute (i) the good adhesion based upon the interface stabilizing SiC grains, and (ii) the high hardness and wear resistance based upon the diamond nanocrystals in the coating. Y1 - 1995 U6 - https://doi.org/10.1557/JMR.1996.0244 SP - 559 EP - 562 ER - TY - JOUR A1 - Hornberger, Helga A1 - Marquis, Peter M. T1 - Mechanical properties and microstructure of In-Ceram BT - a ceramic-glass composite for dental crowns JF - Glastechnische Berichte - Glass Science and Technology Y1 - 1995 VL - 68 IS - 6 SP - 188 EP - 194 ER - TY - JOUR A1 - Hornberger, Helga A1 - Weissmann, R. A1 - Lutz, N. T1 - Machining of silica glasses using excimer laser radiation JF - Glastechnische Berichte - Glass Science and Technology Y1 - 1996 VL - 69 IS - 2 SP - 44 EP - 49 ER - TY - JOUR A1 - Hornberger, Helga A1 - Marquis, Peter M. A1 - Christiansen, Silke H. A1 - Strunk, Horst P. T1 - Microstructure of a high strength alumina glass composite JF - Journal of Materials Research N2 - The morphology and microstructure of an Al2O3 glass composite (trade name In-Ceram, Vita Zahnfabrik) were studied using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The composite was produced by infiltration of a lanthanum-based glass throughout a porous Al2O3 body. This alumina body was formed by three classes of particles differing in size and shape: faceted particles typically ≤4 μm in diameter, platelets of average diameter 8 μm, 1.5 μm thickness, and small spheres 0.4 μm in diameter. The outstanding strength properties of the composite (600 MPa, ball-on-ring test) are a result of the high wetting capability of the glass phase on the Al2O3 surface. In addition, plastic strain relaxation in the faceted particles by dislocation formation compensates partially for residual stresses and impedes crack formation at the glass/Al2O3 interface. Y1 - 1996 U6 - https://doi.org/10.1557/JMR.1996.0104 VL - 11 IS - 4 SP - 855 EP - 858 ER - TY - JOUR A1 - Christiansen, Silke H. A1 - Albrecht, Manuel A1 - Strunk, Horst P. A1 - Hornberger, Helga A1 - Marquis, Peter M. A1 - Franks, J. T1 - Mechanical properties and microstructural analysis of a diamond-like carbon coating on an alumina/glass composite JF - Journal of Materials Research N2 - We investigate the mechanical and microstructural properties of a diamond-like carbon coating (DLC) which is deposited by plasma enhanced chemical vapor deposition (PECVD) onto an alumina/aluminosilicate glass composite used for biomedical applications. Ball-on-ring tests yield a fracture strength that is essentially influenced by the surface topology/roughness. The surface topology of the coating is investigated by atomic force microscopy (AFM). Tribology tests and nanoindentation represent the wear resistance and hardness; these are properties that are mainly influenced by the microstructural properties of the DLC coating. This microstructure is investigated by transmission electron microscopy (TEM) and analyzed by parallel electron energy loss spectroscopy (PEELS). For the general applicability of the coated composite, the interfacial adhesion of the DLC coating on the comparably rough substrate (roughness amplitudes and wavelengths are in the micrometer range) is important. Therefore, we focus on TEM investigations that show the interface to be free of gaps and pores that we, together with a characteristic microstructure adjacent to the interface, relate to the excellent adhesion. The interlayer consists of a high density of SiC grains, part of them directly bound to the substrate, and part of them bound to other SiC grains. This interlayer is followed by an essentially different region of the coating as concerns the microstructure; this region consists of nanocrystalline diamond particles embedded in an amorphous carbon matrix. It is this heterogeneous microstructure to which we attribute (i) the good adhesion based upon the interface stabilizing SiC grains, and (ii) the high hardness and wear resistance based upon the diamond nanocrystals in the coating. Y1 - 1996 U6 - https://doi.org/10.1557/JMR.1996.0244 VL - 11 IS - 8 SP - 1934 EP - 1942 ER -