Kundenakzeptanz von Bluetooth-Beacons im Lebensmittelhandel

Die Nutzung des Internets hat zu einem veränderten Kaufverhalten der Gesellschaft geführt, was wiederum Auswirkungen auf den stationären Einzelhandel hat. Da die Anzahl an Smartphone-Nutzern ebenfalls kontinuierlich steigt, werden mobile Anwendungen immer wichtiger. Durch den Einsatz von Bluetooth-Beacons – kleinen, beliebig platzierbaren Funksendern, dessen Signale von einer entsprechenden App verarbeitet werden können – kann der Einkauf sowohl erleichtert als auch erlebnisreicher gestaltet werden. Der Gebrauch von Beacons in Deutschland ist weniger verbreitet und erforscht. Pilotprojekte stützen sich lediglich auf Nutzungsdaten und Reaktionszeiten, jedoch nicht auf Kundenmeinungen. Diese Arbeit untersucht Nutzungsmöglichkeiten und Kundenakzeptanz von auf Beacons basierenden Konzepten im Einzelhandel mittels einer Online-Kundenumfrage

Katwarn, NINA or FEMA? Multi-Method Study on Distribution, Use and Public Views on Crisis Apps

Crises, such as thunderstorms and an increasing number of (recognised) terroristic attacks in 2015, 2016, and 2017, do not only lead to extensive monetary damage, but also threaten human lives and influence citizens' perceptions of safety and security. In such situations, the population demands information about the damage and safe behaviour. Although some apps are available to provide this information, the number of users seems relatively low. Focussing on Germany, this study aims to research (1) the distribution of crisis apps in the population, (2) the kinds of crisis apps currently used, as well as (3) needed core functionalities of warning apps. This multi-method study analyses crisis apps by investigating their utilisation quantitatively in a snowball-based survey in Europe (n=1,034) and in a representative survey in Germany (n=1,369). Based on this, the German warning apps Katwarn and NINA and the US-American app FEMA are evaluated qualitatively (n=22). The results revealed requirements which informed the implementation of a warning app prototype. The prototype combines the identified advantages of the apps evaluated in the study, containing warnings and all-clear, recommendations for action, functions to contact friends and helpers. The contributions of this work are findings on the distribution of crisis apps in Europe and Germany (both 16%), the kinds of crisis apps used (mostly weather and warning apps), and empirically based requirements for warning apps which can be integrated in further developments of existing apps and a prototype for such an app

Socio-Informatics

Contents Editorial Thematic Focus: Socio-Informatics Introduction to the Thematic Focus “Socio-Informatics” / Claudia Müller Digitalisation in Small German Metal-Working Companies. Appropriation of Technology in a “Traditional” Industrial Domain / Bernhard Nett, Jennifer Bönsch Travelling by Taxi Brousse in Madagascar: An Investigation into Practices of Overland Transportation / Volker Wulf, Kaoru Misaki, Dave Randall, and Markus Rohde Mobile and Interactive Media in the Store? Design Case Study on Bluetooth Beacon Concepts for Food Retail / Christian Reuter, Inken Leopold Facebook and the Mass Media in Tunisia / Konstantin Aal, Marén Schorch, Esma Ben Hadj Elkilani, Volker Wulf Book Review Symposium Charles Goodwin Charles Goodwin’s Co-Operative Action: The Idea and the Argument / Erhard Schüttpelz, Christian Meyer Multi-Modal Interaction and Tool-Making: Goodwin’s Intuition / Christian Meyer, Erhard Schüttpelz Co-Operation is a Feature of Sociality, not an Attribute of People : “We inhabit each other’s actions.” (Goodwin, cover) / Jutta Wiesemann, Klaus Amann The Making of the World in Co-Operative Action. From Sentence Construction to Cultural Evolution / Jürgen Streeck On Goodwin and his Co-Operative Action / Jörg R. Bergman

Modulation of B Cells and Homing Marker on NK Cells Through Extracorporeal Photopheresis in Patients With Steroid-Refractory/Resistant Graft-Vs.-Host Disease Without Hampering Anti-viral/Anti-leukemic Effects

Graft-vs.-host disease (GvHD), a severe complication of allogeneic hematopoietic stem cell transplantation, significantly affects the post-transplant morbidity and mortality. Systemic steroids remain the gold standard for the initial management of GvHD. However, up to 60% of patients will not sufficiently respond to steroids. Extracorporeal photopheresis (ECP), a cell-based immunotherapy, has shown good clinical results in such steroid-refractory/resistant GvHD patients. Given its immunomodulatory, but not global immunosuppressive and steroid-sparing capacity, ECP constitutes an attractive option. In the case of GvHD, the balance of immune cells is destroyed: effector cells are not any longer efficiently controlled by regulatory cells. ECP therapy may restore this balance. However, the precise mechanism and the impact of ECP on anti-viral/anti-leukemic function remain unclear. In this study, 839 ECP treatments were performed on patients with acute GvHD (aGvHD) and chronic GvHD (cGvHD). A comprehensive analysis of effector and regulatory cells in patients under ECP therapy included multi-parametric flow cytometry and tetramer staining, LuminexTM-based cytokine, interferon-γ enzyme-linked immunospot, and chromium-51 release assays. Gene profiling of myeloid-derived suppressor cells (MDSCs) was performed by microarray analysis. Immunologically, modulations of effector and regulatory cells as well as proinflammatory cytokines were observed under ECP treatment: (1) GvHD-relevant cell subsets like CD62L+ NK cells and newly defined CD19hiCD20hi B cells were modulated, but (2) quantity and quality of anti-viral/anti-leukemic effector cells were preserved. (3) The development of MDSCs was promoted and switched from an inactivated subset (CD33−CD11b+) to an activated subset (CD33+CD11b+). (4) The frequency of Foxp3+CD4+ regulatory T cells (Tregs) and CD24+CD38hi regulatory B cells was considerably increased in aGvHD patients, and Foxp3+CD8+ Tregs in cGvHD patients. (5) Proinflammatory cytokines like IL-1β, IL-6, IL-8, and TNF-α were significantly reduced. In summary, ECP constitutes an effective immunomodulatory therapy for patients with steroid-refractory/resistant GvHD without impairment of anti-viral/leukemia effects

Mobile and interactive media in the store?

The Internet has changed consumer behaviour, having an impact on local retail. At the same time, the number of smartphone users is continuously increasing, making mobile applications more and more important. By using Bluetooth beacons – small radio transmitters that can be placed anywhere and are processed by relevant apps – shopping can be facilitated and made more enjoyable. Even though some supermarkets, especially in the USA, are already using beacons, their use is not common and less researched in Germany. Pilot projects only refer to usage data and reaction times while customers are rarely asked for their opinion. This project analyses potentials of usage and customer acceptance of concepts based on beacons in retail via an online consumer survey, discusses the conception of an app, and provides a subsequent qualitative evaluation. As a starting point for our concept development and app implementation, the initial online survey of 203 participants emphasises the importance of user-friendly settings as well as costumers’ interest in informative communication. Throughout all steps of our design case study, concerns for data privacy as well as the interest in transparency were apparent and regarded accordingly. The field experiment stresses users’ perceptions of potentially useful functions, and highlights design-related aspects for improvement, offering useful implications for the future design of shopping apps

Kundenakzeptanz von Bluetooth-Beacons im Lebensmittelhandel

Die Nutzung des Internets hat zu einem veränderten Kaufverhalten der Gesellschaft geführt, was wiederum Auswirkungen auf den stationären Einzelhandel hat. Da die Anzahl an Smartphone-Nutzern ebenfalls kontinuierlich steigt, werden mobile Anwendungen immer wichtiger. Durch den Einsatz von Bluetooth-Beacons – kleinen, beliebig platzierbaren Funksendern, dessen Signale von einer entsprechenden App verarbeitet werden können – kann der Einkauf sowohl erleichtert als auch erlebnisreicher gestaltet werden. Der Gebrauch von Beacons in Deutschland ist weniger verbreitet und erforscht. Pilotprojekte stützen sich lediglich auf Nutzungsdaten und Reaktionszeiten, jedoch nicht auf Kundenmeinungen. Diese Arbeit untersucht Nutzungsmöglichkeiten und Kundenakzeptanz von auf Beacons basierenden Konzepten im Einzelhandel mittels einer Online-Kundenumfrage

KATWARN, NINA, OR FEMA? MULTI-METHOD STUDY ON DISTRIBUTION, USE, AND PUBLIC VIEWS ON CRISIS APPS

Crises, such as thunderstorms and an increasing number of (recognised) terroristic attacks in 2015, 2016, and 2017, do not only lead to extensive monetary damage, but also threaten human lives and influence citizens’ perceptions of safety and security. In such situations, the population demands information about the damage and safe behaviour. Although some apps are available to provide this information, the number of users seems relatively low. Focussing on Germany, this study aims to research (1) the distribution of crisis apps in the population, (2) the kinds of crisis apps currently used, as well as (3) needed core functionalities of warning apps. This multi-method study analyses crisis apps by investigating their utilisation quantitatively in a snowball-based survey in Europe (n=1,034) and in a representative survey in Germany (n=1,369). Based on this, the German warning apps Katwarn and NINA and the US-American app FEMA are evaluated qualitatively (n=22). The results revealed requirements which informed the implementation of a warning app prototype. The prototype combines the identified advantages of the apps evaluated in the study, containing warnings and all-clear, recommendations for action, functions to contact friends and helpers. The contributions of this work are findings on the distribution of crisis apps in Europe and Germany (both 16%), the kinds of crisis apps used (mostly weather and warning apps), and empirically based requirements for warning apps which can be integrated in further developments of existing apps and a prototype for such an app

Katwarn, NINA or FEMA? Multi-Method Study on Distribution, Use and Public Views on Crisis Apps

Crises, such as thunderstorms and an increasing number of (recognised) terroristic attacks in 2015, 2016, and 2017, do not only lead to extensive monetary damage, but also threaten human lives and influence citizens' perceptions of safety and security. In such situations, the population demands information about the damage and safe behaviour. Although some apps are available to provide this information, the number of users seems relatively low. Focussing on Germany, this study aims to research (1) the distribution of crisis apps in the population, (2) the kinds of crisis apps currently used, as well as (3) needed core functionalities of warning apps. This multi-method study analyses crisis apps by investigating their utilisation quantitatively in a snowball-based survey in Europe (n=1,034) and in a representative survey in Germany (n=1,369). Based on this, the German warning apps Katwarn and NINA and the US-American app FEMA are evaluated qualitatively (n=22). The results revealed requirements which informed the implementation of a warning app prototype. The prototype combines the identified advantages of the apps evaluated in the study, containing warnings and all-clear, recommendations for action, functions to contact friends and helpers. The contributions of this work are findings on the distribution of crisis apps in Europe and Germany (both 16%), the kinds of crisis apps used (mostly weather and warning apps), and empirically based requirements for warning apps which can be integrated in further developments of existing apps and a prototype for such an app

Informing the Population: Mobile Warning Apps

Catastrophes like the storms in Europe in spring 2016, but also terrorist attacks regularly not only lead to extensive monetary damage but also threaten human lives. In such situations, the population desires information about the status of damage and safe behaviours. Apps can address this potentially, but comparatively, record a low number of users. Based on Reuter et al. (2017), this article shows the importance of information in disaster situations and illustrates features from current mobile warning apps