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Our report focuses on the possible relationships between the occurrence of stressors and the use of VR. The issue was methodologically addressed by developing a general taxonomy of possible stressors in VR through related work and firstly carrying out a series of tests isolating only the baseline of headset-related stress.
Twelve young adults were tested in a pilot study by a specific five minute VR item for qualitative evaluations of the consumed content, their experience with the equipment, and their general experience running through our study. Same tests were carried out with a comparison group in a boxed TV-environment. For both groups, biomedical parameters were derived that indicate the stress level of the subjects (ECG, EDA and Cortisol test/salivette). Additionally the subjects were screened by questionnaires (VRSQ, NASA TLX-raw, semantic differentials) regarding changes in comfort. VR test subjects were screened by the headset's sensor data too (heart rate, pupil diameter, cognitive load).
Qualitative questions could not reveal any major irritations regarding the content of our relaxation scene. The headset’s sensor data did not indicate any cause of stress in subjects, but it is not possible to take baseline measurements without having the subject wear the VR headset. All other data show experimental validity and robustness.
Although knowing that our samples are small and the power of our tests may not be sufficient to detect a precise difference between the means, we decided to perform an experimental statistical analysis of the pilot study subject data (e.g f-tests, equal/unequal, significance level: 0.05).
According to the results and limitations of this analysis, young adults are not likely to experience stress from short-term use of VR headsets where all other VR stressors have been eliminated. Ten hypotheses in this regard have been rejected.
It is a fundamental right of every natural person to control which personal information is collected, stored and processed by whom, for what purposes and how long. In fact, many (cloud based) services can only be used if the user allows them broad data collection and analysis. Often, users can only decide to either give their data or not to participate in communities. The refusal to provide personal data results in significant drawbacks for social interaction. That is why we believe that there is a need for tools to control one's own data in an easy and effective way as protection against economic interest of global companies and their cloud computing systems (as data collector from apps, mobiles and services). Especially, as nowadays everybody is permanently online using different services and devices, users are often lacking the means to effectively control the access to their private data. Therefore, we present an approach to manage and distribute privacy settings: PRIVACY-AVARE is intended to enable users to centrally determine their data protection preferences and to apply them on different devices. Thus, users gain control over their data when using cloud based services. In this paper, we present the main idea of PRIVACY-AVARE.
The Revive Turbo Cleaner is a cleaning fluid which removes carbon deposits from inside petrol or diesel engine systems. It is distributed internationally through wholesalers and sales agents to workshops and private car owners. After the acquisition of Revive Automotive Solutions Ltd by Bartec Auto ID Ltd in summer 2016, the new owners decided to further develop the brand and to move into the promising German automotive aftermarket, as the Cleaner had shown good sales figures in the home market UK and in a number of international markets. This paper examines environmental factors influencing the German marketplace, analyses Revive’s actual customer segments including consumers and business clients, provides profiles of its competitors and substituting technologies, regards the characteristics of the specific industry and defines the product’s qualities in order to draw a conclusion on the appropriate Marketing Mix to employ for the German market. In advance to the analytical work, the paper critically considers the range of theoretical frameworks used for the analysis, namely PESTEL, Porter’s Five Forces Analysis, the SWOT Analysis and the Marketing Mix in order to define and update original concepts as wells as adapt them to the research requirements.
TSE-Signatur Verifier
(2022)
This paper analyses five different Cryptocurrencies, namely Bitcoin, Ethereum, XRP, Dogecoin and Litecoin, and studies their impact on traditional financial portfolios under different allocation strategies. The allocation strategies under consideration in this paper are the modern portfolio theory according to Markowitz, an extension of it such as the tangency portfolio, and the equally weighted portfolio. Further, this study explores the effect on the efficient frontier when Cryptocurrencies are added to the efficient portfolios. In addition to that, the paper aims to examine whether the mean – variance portfolio optimization according to Markowitz outperforms the naïve and tangency portfolio strategy. The portfolio performance is evaluated based on the Sharpe ratio. The quantitative analysis of this paper covers the time period from 2017 to 2022, in total five years. In accordance with the existing literature on portfolio optimization with Cryptocurrencies, the study reveals that besides some issues related with Cryptocurrencies such as cybercrime and a lack of regulations, Cryptocurrencies can be beneficial for portfolio diversification with traditional financial assets. Referring to the portfolio strategies, the study highlights that the optimal mean – variance portfolio and tangency portfolio do not differ significantly in terms of Sharpe ratio. However, both strategies outperform equally weighted portfolios.
Die Biografie- und Erinnerungspflege stellt eine Behandlungsform für die unheilbare Demenzerkrankung dar. Hierbei wird versucht durch Aktivitäten, welche einen Bezug zu der Vergangenheit des Menschen mit Demenz haben, Erinnerungen auszulösen. Dies hilft der an Demenz erkrankten Person ihr Identitätsgefühl zu festigen.
Im Rahmen dieser Bachelorarbeit wurde eine innovative Anwendung entwickelt, welche interaktive und multimediale Bilder für die Biografie- und Erinnerungspflege bereitstellt. Mit diesen Bildern kann der Mensch mit Demenz interagieren, indem er auf einzelne Objekte drückt und daraufhin ein thematisch passendes Medium präsentiert wird. Die interaktiven Bilder werden automatisch, mittels Machine Learning, erstellt. Des Weiteren wurde ein Recommender System implementiert, welches basierend auf den Präferenzen des Menschen mit Demenz, Inhalte für eine Biografie- und Erinnerungspflegesitzung vorschlägt.
In this paper, different factors influencing the perceived data security (PDS) of online shoppers are analyzed. For this purpose, the authors first conduct a literature review and later analyze the results of an empirical study, by applying a regression analyses. Based on the findings of this research, the paper identified the frequency of gathering information on the topic of data security and the experience of being hacked as factors with a significant negative impact on PDS. In addition, a well perceived benefit and, in special cases, an e-Commerce business’ brand can positively influence PDS of customers. In conclusion, the paper delivers insights into the perceptions of data security and delivers some suggestions on how a company could improve the PDS of their customers.
Diese wissenschaftliche Publikation befasst sich mit dem Aufbau und der Funktionsweise der alternativen
Antriebstechnologie Wasserstoffverbrennungsmotor. Es wird das
Potential dieses Motors hinsichtlich der Klimaziele als Antrieb für PKW und schwere Nutzfahrzeuge untersucht. Dazu wird dieser bezüglich des Wirkungsgrads und der CO2-Bilanz mit den herkömmlichen Antrieben Otto- und Dieselmotor sowie den
weiteren alternativen Antrieben Batterie und Brennstoffzelle
verglichen.
Beginning in the mid 2007’s the US financial market started to slide into the “worst financial crisis since the Great Depression of the early 1930’s” (Thakor, 2015: p.156). The domino effect of several events and occasions were leading first to a countrywide recession in the USA then later spreading globally. In the following this term paper will deal with the main causes and effects of 2008 financial crisis. Unlike other topics in literature there is no consensus about the question of guilt in this sense. Among economists there are different approaches to explain the main causes of the financial crisis.
Mit dem Fitnessboom in Deutschland profitiert auch die Nahrungsergänzungsmittelindustrie. Auf Social-Media-Kanälen wie Instagram wird immer sichtbarer wie Influencer der Fitnessbranche mit Produktplatzierungen für Nahrungsergänzungsmittel werben. Diese Arbeit untersucht das neue Marketingphänomen des Influencer Marketings bezogen auf die Nahrungsergänzungsmittelindustrie der Fitnessbranche in Deutschland. Für die Untersuchung wurde eine persönliche Befragung von Fitnessstudiobesuchern durchgeführt. Die Ergebnisse der Studie zeigen, dass das Influencer Marketing eine Rolle für den Erfolg von Herstellern der Nahrungsergänzungsmittelindustrie haben kann und diese neue Marketingdisziplin voller Potenzial steckt.