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Exploring vibrotactile feedback on the body and foot for the purpose of pedestrian navigation
No full textIn this paper, we present an evaluation of vibrotactile onbody feedback for the purpose of pedestrian navigation. For this specific task, many researchers already provide different approaches such as vibrating belts, wristbands or shoes. Still, there are issues left that have to be considered, such as which body position is most suitable, what kind of vibration patterns are easy to interpret, and how applicable are vibrotactile feedback systems in real scenarios. To find answers, we reconstructed prototypes commonly found in literature and continued to further evaluate different foot-related designs. On the one hand, we learned that vibrotactile feedback at the foot reduces visual attention and thus also potentially reduces stress. However, on the other hand, we found that urban space can be very diverse, and ambiguous and therefore a vibrotactile system cannot completely replace common path finding systems for pedestrians. Rather, we envision such a system to be applied complementary as an assistive technology
Visualizing Geospatial Co-authorship Data on a Multitouch Tabletop
No full textThis paper presents Muse, a visualization of institutional co-authorship of publications. The objective is to create an interactive visualization, which enables users to visually analyze collaboration between institutions based on publications. The easy to use multitouch interaction, and the size of the interactive surface invite users to explore the visualization in semi-public spaces
Components of a Research 2.0 Infrastructure
No full textIn this paper, we investigate the components of a Research 2.0 infrastructure. We propose building blocks and their concrete implementation to leverage Research 2.0 practice and technologies in our field, including a publication feed format for exchanging publication data, a RESTful API to retrieve publication and Web 2.0 data, and a publisher suit for refining and aggregating data. We illustrate the use of this infrastructure with Research 2.0 application examples ranging from a Mash-Up environment, a mobile and multitouch application, thereby demonstrating the strength of this infrastructure
Human-computer cooperation
No full textWhether it be DVD-players, automatic ticket machines, cell phones, PDAs, machines, computers or even airplane cockpits, an increasing number of products at home and at work have a user interface, in other words a place where humans and machines meet. Direct contact with interactive technology was previously limited to the workplace. Now, there is hardly a social group that does not come into contact directly or indirectly with computer or information systems. However, the continuous increase in the performance and functionality of information and communication systems has resulted in rising complexity in controlling such systems. The practicality of user interfaces has become more and more a key criterion for acceptance and success in the market
Forschungsdatenmanagement als Arbeitsschwerpunkt für Informationswissenschaftler/innen
No full textForschungsdatenmanagement ist ein informationswissenschaftliches Thema, das kontinuierlich an Bedeutung gewinnt. Zur Abgrenzung von Arbeitsschwerpunkten für Informationswissenschaftler/innen wurde ein aktuelles Stellenanzeigenkorpus mit Bezug zum Forschungsdatenmanagement (FDM) ausgewertet und in einem erweiterten Forschungsdatenlebenszyklus verortet. Dieser Praxisrepräsentation wurde eine Literaturanalyse gegenübergestellt. Die abschließende Zusammenführung und Auswertung innerhalb des Forschungsdatenlebenszyklus zeigt eine hohe Kongruenz der Schwerpunktverteilung zwischen Theorie und Praxis
Zur gesellschaftlichen Verantwortung der Informationswissenschaften
No full textAus Anlass der Verabschiedung von Prof. Dr. Hans-Christoph Hobohm aus der aktiven Lehr- und Forschungstätigkeit an der Fachhochschule Potsdam fand am 25. Juni 2021 ein Online-Fachsymposium mit ausgewählten Beiträgen zum Thema „Zur gesellschaftlichen Verantwortung der Informationswissenschaften“ statt. Im Anschluss an das Fachsymposium wurde Hans-Christoph Hobohm durch eine Laudatio gewürdigt und von der Hochschulleitung aus dem aktiven Dienst verabschiedet.
Dieser Beitrag berichtet in Wort und Bild über die Gesamtveranstaltung. Vor allem würdigt er das Wirken des geschätzten Kollegen und bietet einen Nachhall auf die Verabschiedung einer der prägenden Persönlichkeiten des bibliotheks- und informationswissenschaftlichen Fachdiskurses in den letzten Jahrzehnten in Deutschland
Johann August Röbling (1806-1869) — Early Projects in Context
No full textRoebling became acquainted with Navier's theory at the Berlin Bauakademie in 1824/25. During his road planning work in Westphalia, he developed several suspension bridge projects in 1828. Roebling's travels along the Rhein and Ruhr in the winter of 1828 were connected with these projects. Roebling supplemented his notes on Dietlein's bridge-building lectures at the Berlin Bauakademie with excerpts from newer literature on suspension bridges. Under the title "Remarks on Bridge Construction" he discussed the results of his studies. Four known bridge projects can be distinguished. Two are only elaborated as an idea, in one case the project is only known by official letters. Only in the case of the Freienohl Bridge is there an exact description of the project. None of them have been brought to realization. Security considerations of the Berlin Oberbaudeputation probably led to the decision not to execute Roebling's Finnentrop project. This decision ought to be understood within the context of a bridge collapse in Nienburg /Saale in December 1825. When Roebling immigrated to the United States, he used his knowledge in construction methods and experiences with an experimental approach. For this reason, it is interesting to compare the early German projects with his first American bridges. While Roebling's first canal aqueducts combined suspension bridges with trusses, the Niagara Bridge marks a radical step forward to another dimension and to a new approach that emphasized thinking in terms of "systems". Interestingly, he also consistently maintained his construction principle for attaining stability by using rigid, wrapped main cables, inclined stays and wooden trusswork. Although he later used wrought iron profiles, he continued to use wooden constructions in his basic plans for a long time. There is no evidence that he made any contribution to the theories of trusses in a manner comparable with Whipple, Culmann, Gerber or others. Roebling's special talent lay in his constructive gifts
Intuitive Use of User Interfaces
No full textIn this paper we present a general definition of the concept ’intuitive use of user interfaces’ on the basis of our current interdisciplinary work. ’Intuitive use’ is regarded as a characteristic of human-machine systems. It refers to a special kind of interaction process between users and technical systems that use the users’ intuition. The main part of the paper deals with central aspects of this definition in detail and discusses pre-conditions and restrictions of the use of the concept. The main aspects that we discuss are the design of technical systems, application and non-conscious use of previous knowledge, intuition as a non-conscious process, interaction, and effectiveness. We complement this discussion by addressing the relationship between aesthetics and intuitive use
Das Schwingungsverhalten der Fußgängerbrücke am Stern-Center in Potsdam
No full textDie Fußgängerbrücke am Stern-Center in Potsdam wurde vor sieben Jahren in Betrieb genommen. Seitdem werden sowohl von der Brückenverwaltung als auch von den Nutzern deutlich spürbare Schwingungen beim überqueren der Brücke festgestellt, die Anlaß zu Beunruhigungen geben.
Ziel der durchgeführten Untersuchungen war es, das Schwingungsverhalten und die Schwingungsursachen der Schrägseilbrücke anhand von Messungen zu identifizieren und ein geeignetes FE-Rechenmodell zu entwickeln, das die dynamischen Wirkungen hinreichend genau erfaßt
“And then we’ll just check if it suits us” : cognitive-affective maps of social innovation in early childhood education
No full textThe idea that a simple execution of an innovation invented by actors other than those who are expected to apply it is not likely to take place is a truism. We assume, however, in this paper the idea of a discursive production of knowledge on the application of an innovation across different levels of the education system. We aim to shed light on an innovation’s ‘journey’ from educational policy over training providers to teams of professionals in early childhood education and care (ECEC). By investigating knowledge and emotions associated with the introduction of an intended innovation using the example of “stimulation interactions” in day care-centers, the paper contributes to research on the transfer of innovations in education. To better understand challenges occurring during the transfer of innovations, we triangulate methods from discourse theory (coding techniques based on GTM) and cognitive science, namely cognitive-affective mapping (according to the scholarly conventions). The data corpus includes educational plans (N = 2), in-service training programs (N = 123) and group discussions of pedagogical teams (N = 6) who participated in an in-service training on the subject, stimulating interaction. Findings underline that similar messages from the inventors on the educational policy level are received and processed heterogeneously by the teams of pedagogues as a result of their preexisting views, routine practices and experiences with intended innovations through in-service trainings. Besides, a diffuse mixture of competing and contradictory information is communicated to the professionals and, hence, collides with the in-service training providers’ and educational policy actors’ expectations on the processing of the intended innovation. Specific knowledge elements and their valences are diametrically opposed to each other. Dissonances like these are considered as obstacles to social innovation. The obstacles are caused by the lack of a ‘common language’ beyond all levels. Hence, policy-makers and in-service-training providers should anticipate the supportive as well as competing knowledge-emotional complexes of professionals and take these into account when communicating an intended innovation