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Adding evidence of the effects of treatments into relevant Wikipedia pages: a randomised trial
(2020)
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)
Harnessing Wearable Devices for Emotional Intelligence: Therapeutic Applications in Digital Health
(2023)
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.
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.
The topic of traditional fashion retailers fighting for their position against growing e-commerce suppliers has been omnipresent in recent years. Therefore, it is important to understand what possibilities modern technology and innovation has to offer, and how these innovative technologies can be leveraged to achieve traditional brick-and-mortar-retailer’s goal of staying relevant and competitive.
The objective of this thesis is to examine and compare the effectiveness of different in-store digitalization concepts and technologies in retail organisations, analyzing different challenges such as the practical implementation in stores, customer adoption and acceptance factors in context of socio-demographic, and measuring the success of the concepts. Also, the current situation will be explored to see what is already being done today and where there is more potential using different approaches and technologies. For this purpose, a variety of studies, papers and other literature will be analyzed and put into context with the research topic.
Concluding the thesis, we find that all technologies and its practical applications affect relevant variables in different models such as TAM, the convenience/social presence model, and the customer decision-making process. Besides that, the socio-demographic variables geography, age and gender all influence adoption and readiness towards technology to a certain extent. Finally, we give examples on how the technologies can influence classic fashion retail KPIs.
Harmonic Analysis for the Separation of Perfusion and Respiration in Electrical Impedance Tomography
(2021)
Multifrequency bioimpedance device based on the Analog Discovery 2: performance and characterization
(2023)
Separation of ventilation and cardiac activity on recorded voltages before EIT image reconstruction
(2023)
Injury to the anterior and posterior cruciate ligaments is not an uncommon occurrence. A rapid movement can already cause such an injury. Reconstruction of the anterior and posterior cruciate ligaments (ACL/PCL) in the knee joint is a complex orthopedic challenge. In this context, the development of a graft preparation system is gaining importance. Such a system will help surgeons prepare grafts accurately and efficiently to optimize reconstruction processes. This can increase the accuracy of graft placement, reduce surgical times, and decrease recovery time and postoperative risk for patients.
This paper focuses on the development of a graft preparation system for ACL/PCL reconstruction in collaboration with Getsch+Hiller Medizintechnik. The challenges and requirements in developing such a system were analyzed to ensure functionality and effectiveness. Existing approaches and technologies were examined to identify potential improvements and innovations. Development included extensive research on ACL/PCL reconstruction using grafts, including various surgical techniques. A detailed analysis of the graft preparation process was performed to identify critical issues. The design of the graft preparation system is based on research data and is performed using CAD. The needs of the target group, customer requirements and findings from research were considered.
Comparison of Geometrical Lung Models to Calculate Tidal Volumes during Spontaneous Breathing
(2021)
Creating Interactive Experiences together with People with Dementia – an Inclusive Design Story
(2017)
The thesis introduces a case study research presenting the transfer pricing problem of a selected MNE. Hereby, the researcher derives an appropriate method for the case and concludes with a comparison of theory and practice. The theoretical part of the thesis evaluates existing transfer pricing methods as explained by the OECD, Germany and the USA. The second part is about the choice of the research methodology, case study research and expert interview.
The third part first introduces the case study, analyzes a theoretical framework of the transfer pricing process and evaluates the existing transfer pricing methods, which allows for the derivation of the most appropriate transfer pricing method for the case. The fourth part concludes the research by applying the derived transfer pricing method, the Cost Plus Method, to the particular case study. By combining theoretical and practical approaches, a solution to the problem is determined.
Scenario Planning: How is big data going to influence the future of smart mobility in Germany?
(2016)
Smart mobility is the future of transportation services in Germany. The implementation and management of smart mobility is impossible without using big data. At the present time,the analysis of big data in Germany is not fully implemented due to existing challenges. The purpose of this research project is to forecast the impact of big data on smart mobility in Germany with the use of scenario planning. In order to receive the most actual scenarios, the input factors were designed in accordance with extensive literature research, and then ratios between all specifications of input factors were compared and evaluated. Thus four unique scenarios were selected for further detailed interpretation to suggest possible influences of big data on smart mobility in Germany
Rising globalization and digitization resulted in crises for the fashion industry. High competition and the interconnectedness of the consumers rule the market and put it under pressure. Owing to the growing power consumers possess, the requirements towards the fashion players are increasing. Customer experience is frequently discussed these days by academics as well as practitioners and emphasized as a competitive advantage. Yet, it is difficult to measure and to track its consequences.
Since customer experience is elusive and no industry specific measurement scale is defined, at first this work aims to identify relevant touch points of customer experience in the fashion industry by dint of a focused interview. The further objective of this paper is to enhance the comprehension of the touch points’ effects or rather the relationship of customer experience with brand loyalty. This is approached by a questionnaire based on the preceding qualitative analysis and the resulting model. This model defines the customer experience touch points as the independent variables while brand loyalty is examined as the dependent variable. The conducted linear regression analysis reveals a moderate effect of customer experience on brand loyalty and the touch points concerning the products as most relevant in this relationship. Additionally, the digitization aspect is addressed by the examination of the relationship in the offline and online channels separately. With respect to this, the present study recognizes that the extent of the customer experience’s impact on brand loyalty and the significant touch points vary across channels to a certain degree.
Entwurf und Implementierung einer kamerabasierten Anwendung für ein Mühlespiel für den Panda-Roboter
(2023)
Comparison of a histology based multi layer artery model to its simplified axisymmetric model
(2021)
Evaluation of high compliant elastomer balloons for the identification of artery biomechanics
(2023)
Background: Adolescence is a phase of higher vulnerability for suicidal behavior. In Germany, almost 500 adolescents and young adults aged 15-25 years commit suicide each year. Youths in rural areas are characterized by a higher likelihood of poorer mental health. In rural areas, appropriate support for adolescents and young adults in mental health crises is difficult to access. The general acceptability of digital communication in youths can make the provision of an eHealth tool a promising strategy.
Objective: The aim of this study was to explore the health needs regarding suicide prevention for adolescents and young adults in rural areas of Germany and Switzerland and to identify characteristics of suitable e-mental health interventions.
Methods: This study reports on a qualitative secondary analysis of archived data, which had been collected through formative participatory research. Using 32 semistructured interviews (individually or in groups of 2) with 13 adolescents and young adults (aged 18-25 years) and 23 experts from relevant fields, we applied a deductive-inductive methodological approach and used qualitative content analyses according to Kuckartz (2016).
Results: Experts as well as adolescents and young adults have reported health needs in digital suicide prevention. The health needs for rural adolescents and young adults in crises were characterized by several categories. First, the need for suicide prevention in general was highlighted. Additionally, the need for a peer concept and web-based suicide prevention were stressed. The factors influencing the acceptability of a peer-driven, web-based support were related to low-threshold access, lifelike intervention, anonymity, and trustworthiness.
Conclusions: The results suggest a need for suicide prevention services for adolescents and young adults in this rural setting. Peer-driven and web-based suicide prevention services may add an important element of support during crises. By establishing such a service, an improvement in mental health support and well-being could be enabled. These services should be developed with the participation of the target group, taking anonymity, trustworthiness, and low-threshold access into account.
Pro-environmental attitude is, on many occasions, a weak indicator for pro-environmental behavior. Personal interests interfere with the human desire to follow normative goals during the decision-making process, which may result in the unpleasant state of attitudinal ambivalence. The more balanced two contrary attitudes are, the higher is the chance for external persuasion as it may decrease the internal ambivalent conflict. However, moral informational interventions seem not to cause the desired behavioral change but may instead increase the sense of resignation and guilt. This paper aims to set focus on the attitude-behavior relationship in the concrete example of plastic-packed food and how post-decisional evaluations vary when either individual (hedonic or gain goal) or collective motives (normative goal) are being followed. Measured indications for actual disengagement or attitude adaption are relatively weak but felt ambivalence in the case of immoral decisions could be demonstrated in the form of response times. Practical conclusions that may facilitate pro-environmental behavior are being presented at the end of the work.
Digitalization has made business virtual. As the current workforce is slowly adapting to it, the “digital natives” come into play.
We all know, that Millennials have a different approach to media and virtuality. They are practically born with it. But how would they perform if they had to use virtual media in a professional setting? Does the experience and the technology surrounded upbringing give them a clear advantage? Or will they struggle with this entirely new dimension of communication the same way older generations do? This Thesis focusses on the challenges of virtual teams, predominantly in cross cultural situations. But especially on how Millennials tackle virtual teams in a global setting, if they did not have extensive prior preparation.
The first part tries to identify the theoretical background of this paper – the classical challenges of cross-cultural communication in virtual teams but also the willingness of Millennials to use digital work tools for their future.
The main segment then introduces data and observations collected on the GVT project - a pilot project from the Hochschule Furtwangen University, where students from Spain, Finland and Germany took part in a simulation of virtual teamwork. In groups, these students had to develop a project about Erasmus at their university – but purely virtual to experience physical borders in teams.
A pre-survey and a post survey have been carried out on this group to analyze and investigate how perception and reality differ. Furthermore, the participants left testemonials and many virtual meetings were monitored.
This Thesis will conclude with chapter 3 to show if Millennials have a valid advantage in working with virtual teams. It will also show the necessity to train young people and change our education to a more digital approach, as business will inevitably become increasingly virtual.