13 research outputs found

    Exploring user experience and technology acceptance for a fall prevention system: results from a randomized clinical trial and a living lab

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    Background: Falls are common in older adults and can result in serious injuries. Due to demographic changes, falls and related healthcare costs are likely to increase over the next years. Participation and motivation of older adults in fall prevention measures remain a challenge. The iStoppFalls project developed an information and communication technology (ICT)-based system for older adults to use at home in order to reduce common fall risk factors such as impaired balance and muscle weakness. The system aims at increasing older adults’ motivation to participate in ICT-based fall prevention measures. This article reports on usability, user-experience and user-acceptance aspects affecting the use of the iStoppFalls system by older adults. Methods: In the course of a 16-week international multicenter study, 153 community-dwelling older adults aged 65+ participated in the iStoppFalls randomized controlled trial, of which half used the system in their home to exercise and assess their risk of falling. During the study, 60 participants completed questionnaires regarding the usability, user experience and user acceptance of the iStoppFalls system. Usability was measured with the System Usability Scale (SUS). For user experience the Physical Activity Enjoyment Scale (PACES) was applied. User acceptance was assessed with the Dynamic Acceptance Model for the Re-evaluation of Technologies (DART). To collect more detailed data on usability, user experience and user acceptance, additional qualitative interviews and observations were conducted with participants. Results: Participants evaluated the usability of the system with an overall score of 62 (Standard Deviation, SD 15.58) out of 100, which suggests good usability. Most users enjoyed the iStoppFalls games and assessments, as shown by the overall PACES score of 31 (SD 8.03). With a score of 0.87 (SD 0.26), user acceptance results showed that participants accepted the iStoppFalls system for use in their own home. Interview data suggested that certain factors such as motivation, complexity or graphical design were different for gender and age. Conclusions: The results suggest that the iStoppFalls system has good usability, user experience and user acceptance. It will be important to take these along with factors such as motivation, gender and age into consideration when designing and further developing ICT-based fall prevention systems

    FoDaKo - Forschungsdatenmanagement in Kooperation - Ideen – Entwicklung – Ziele

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    FoDaKo - Forschungsdatenmanagement in Kooperation Aufbau von FDM Infrastrukturen im Verbundprojekt Collaboartive Research Data Managemen

    Synergy Effects through Cooperation: Background, Tasks, and Potentials of the Project Fodako

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    Vor dem Hintergrund der zunehmenden Bedeutung von Open-Data-Ansätzen und neuen Anforderungen an das Forschungsdatenmanagement (FDM) vonseiten der Förderinstitutionen, streben Forschende und Institutionen einen Wandel bislang praktizierter Vorgehensweisen beim FDM an. In einer universitären Kooperation von drei Rechenzentren und drei Universitätsbibliotheken zielt das Projekt Forschungsdatenmanagement in Kooperation (FoDaKo),1 darauf ab, Synergien nutzbar zu machen und Best Practices für das FDM zu entwickeln und auszutauschen. Der Beitrag gibt einen Einblick in Struktur, Maßnahmen und bislang gesammelte Erfahrungen eines Projekts zur Erforschung des Managements von Forschungsdaten in ihrem Lebenszyklus an den Universitäten Düsseldorf, Siegen und Wuppertal und ermöglicht Dritten damit die Möglichkeit der Adaption von Ansätzen für ein möglichst kosteneffizientes und nachhaltiges FDM.Against the backdrop of the increasing significance of open data approaches and newly emerging requirements in Research Data Management (RDM), imposed by funding agencies, researchers and institutions strive for an upheaval in current RDM practices. The FoDaKo project,2 comprises a collaboration of three Universities' data centres and libraries, gearing towards harnessing synergies in resources, while developing and sharing best practices in RDM throughout the data lifecycle. In this paper, we share our approach and experiences, which can inform other institutions and projects in achieving an economical and sustainable RDM

    "Hey, can we make that, please?": Upon Craft as a Means for Cross-cultural Community-Building

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    Focusing on computer clubs in Germany, this paper studies varied craft-based interventions as facilitators not only for the appropriation of computing concepts, but for engaging young and adult neighborhood inhabitants in activities that enable cross-cultural and technological identity exploration. We show how craft as a method for engaging participants in reflective, collaborative activity is apt to trigger and support community-building in socially and culturally diverse societal contexts

    Final report of the project "FoDaKo - Forschungsdatenmanagement in Kooperation"

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    BMBF-Förderprogramm „Erforschung des Managements von Forschungsdaten in ihrem Lebenszyklus“Das Projekt "FoDaKo - Forschungsdatenmanagement in Kooperation" - gefördert vom Bundesministerium für Bildung und Forschung (2017-2019) - sollte die Erforschung des Managements von Forschungsdaten in ihrem Lebenszyklus vorantreiben. Die Heinrich-Heine-Universität Düsseldorf, die Bergische Universität Wuppertal und die Universität Siegen haben dazu ihre bestehende Zusammenarbeit auf dem Gebiet des Forschungsdatenmanagements und der Langzeitarchivierung thematisch und personell erweitert und engmaschiger verknüpft. Mit dem Projekt wurde kooperativ eine Infrastruktur auf den Ebenen Technik, Forschungsprozesse, Beratung und Schulung an allen drei Standorten aufgebaut, welche u.a. als Blaupause von anderen Einrichtungen übernommen werden könnte. Es wurden nachnutzbare Schulungsunterlagen entwickelt, die Prozesse im Forschungsdaten-Lebenszyklus erfasst und typische Anwendungsfälle analysiert, sowie die Erstellung und Umsetzung von Datenmanagementplänen ausgearbeitet. Über die Standorte hinaus wurde das Projekt in regionalen und nationalen FDM-Netzwerken verankert.The project "FoDaKo - Forschungsdatenmanagement in Kooperation" - funded by the Federal Ministry of Education and Research (2017-2019) - was intended to advance research into the management of research data in their life-cycle. To this end, Heinrich-Heine-University Düsseldorf, the Bergische University Wuppertal and the University of Siegen have extended thematically and in terms of personnel their existing cooperation in the field of research data management and long-term archiving. The project has cooperatively established an infrastructure on the levels of technology, research processes, consulting and training at all three locations, which could be taken over by other institutions as a blueprint. Reusable training materials were developed, the processes in the research data-life-cycle were recorded and typical use cases were analysed, and the creation and implementation of Data Management Plans were worked out. Beyond the locations, the project was anchored in regional and national FDM-networks

    The Impact of the Low Molecular Weight Heparin Tinzaparin on the Sensitization of Cisplatin-Resistant Ovarian Cancers—Preclinical In Vivo Evaluation in Xenograft Tumor Models

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    Resistance formation of tumors against chemotherapeutics is the major obstacle in clinical cancer therapy. Although low molecular weight heparin (LMWH) is an important component in oncology referring to guideline-based antithrombotic prophylaxis of tumor patients, a potential interference of LMWH with chemoresistance is unknown. We have recently shown that LMWH reverses the cisplatin resistance of A2780cis human ovarian cancer cells in vitro. Here we address the question whether this LMWH effect is also valid under in vivo conditions. Therefore, we established tumor xenografts of A2780 and cisplatin resistant A2780cis cells in nude mice and investigated the impact of daily tinzaparin applications (10 mg/kg BW) on anti-tumor activity of cisplatin (6 mg/kg BW, weekly) considering the tumor growth kinetics. Intratumoral platinum accumulation was detected by GF-AAS. Xenografts of A2780 and A2780cis cells strongly differed in cisplatin sensitivity. As an overall consideration, tinzaparin co-treatment affected the response to cisplatin of A2780cis, but not A2780 tumors in the later experimental time range. A subgroup analysis confirmed that initially smaller A2780cis tumors benefit from tinzaparin, but also small A2780 xenografts. Tinzaparin did not affect cisplatin accumulation in A2780cis xenografts, but strongly increased the platinum content in A2780, obviously related to morphological differences in both xenografts. Although we cannot directly confirm a return of A2780cis cisplatin resistance by tinzaparin, as shown in vitro, the present findings give reason to discuss heparin effects on cytostatic drug efficiency for small tumors and warrants further investigation

    ICT-Based Fall Prevention System for Older Adults: Qualitative Results from a Long-Term Field Study

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    Falls and their consequences are arguably most important events for transition from independent living to institutional care for older adults. Information and communication technology (ICT)-based support of fall prevention and fall risk assessment under the control of the user has a tremendous potential to, over time, prevent falls and reduce associated harm and costs. Our research uses participative design and a persuasive health approach to allow for seamless integration of an ICT-based fall prevention system into older adults’ everyday life. Based on a 6-month field study with 12 participants, we present qualitative results regarding the system use and provide insights into attitudes and practices of older adults concerning fall prevention and ICT-supported self-management of health. Our study demonstrates how it can lead to positive aspects of embodiment and health literacy through continuous monitoring of personal results, improved technical confidence, and quality of life. Implications are provided for designing similar systems
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