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Introduction
(2015)
Collecting real-world data for the training of neural networks is enormously time-consuming and expensive. As such, the concept of virtualizing the domain and creating synthetic data has been analyzed in many instances. This virtualization offers many possibilities of changing the domain, and with that, enabling the relatively fast creation of data. It also offers the chance to enhance necessary augmentations with additional semantic information when compared with conventional augmentation methods. This raises the question of whether such semantic changes, which can be seen as augmentations of the virtual domain, contribute to better results for neural networks, when trained with data augmented this way. In this paper, a virtual dataset is presented, including semantic augmentations and automatically generated annotations, as well as a comparison between semantic and conventional augmentation for image data. It is determined that the results differ only marginally for neural network models trained with the two augmentation approaches.
This thesis investigates the persuasiveness of triathlon celebrities on consumer purchase intention, employing a quantitative research methodology grounded in the Source Credibility Model and the Match-up hypothesis. Through a survey-based approach, data was collected to analyse how consumers perceive characteristics of triathlon sports celebrities and how the match-up between triathlon celebrities and product types as well as the perceived characteristics affect consumer purchase intention. Running shoes and winter boots were selected as the two product types.
The study population consisted of a total sample size of 204 respondents. Descriptive statistics and multiple linear regression analyses were conducted to explore the relationships between triathlon sports celebrities' attributes, product-endorser matchup, and consumer purchase intention. Findings revealed significant positive relationships between perceived expertise and purchase intention for both running shoes and winter boots. Moreover, a positive relationship was observed between perceived physical attractiveness of triathlon celebrities and purchase intention for both products. While perceived trustworthiness did not significantly impact purchase intention, the study demonstrated a positive relationship between perceived product-endorser match-up and purchase intention for both products. Practical implications stemming from these findings emphasize the importance of strategic sport celebrity selection and product-endorser fit in endorsement campaigns. This research contributes to the academic field by focusing specifically on triathlon celebrities’ and their persuasive impact towards consumers.
Investigation of Long-Term Stability of Hybrid Systems-in-Foil (HySiF) for Biomedical Applications
(2020)
In this paper, the influence of current sensors of a NILM system is investigated. The current sensors of a classical inductive current transformer and a Rogowski coil are compared. To evaluate the actual influence on the NILM, measurements are performed with two measuring systems with different current sensors. With these measuring systems, 20 different consumers with 50 switch-on and switch-off cycles are measured in parallel. Besides, the influence of the sampling rate on the results of the NILM classification is evaluated. The classification is carried out with features normalized to the performance and without phase information, so only the signal waveform is used to differentiate the devices.
The paper shows the influence of low-pressure plasma on polyethylene terephthalate (PET) to achieve improved layer adhesion between PET and ALD multilayers. The literature describes a relationship between functional groups that are incorporated into the polymer surface and better layer adhesion. In this work, the relative number of functional groups after treatment on the surface of PET was measured by the surface energy.
The PET film Hostaphan® RNK was exposed to oxygen and argon plasma with varying treatment times. Subsequently, the surface energy was determined via the contact angle measurement.
The investigations have shown that with increasing treatment time in the oxygen plasma, an increasing surface energy is associated, which is due to the increased incorporation of functional groups, such as hydroxy groups. Furthermore, the results have confirmed the thesis that if the plasma treatment is too long, oxidation takes place on the polymer surface and thus the surface energy decreases. Another aspect that has emerged in the results of the study is the subordinate role of the power of the plasma.
Since the study has not proven the connection between a good layer adhesion, of ALD multilayers on PET, and a high surface energy, this work should serve as an indication for the investigation of this thesis.
ALD can be used in medical technology to produce thin and stable protective coatings. For example, such coatings can be used as tarnish and oxidation protection for silver electrodes used in high-frequency surgery. For the investigation of the pretreatment method, platelets of sterling silver were used instead of silver electrodes. Three methods were used to pretreat the silver substrates. The first pretreatment method is cleaning with acetone and isopropanol. In the other two, the samples are additionally cleaned with a phosphoric acid etching mixture or citric acid. The pretreated substrates were coated using the atomic layer deposition method. 45 nm of aluminum oxide was deposited on the silver samples, followed by another 45 nm of titanium oxide. Subsequently, the samples were autoclaved in order to check the clinical routine and the reusability. The results show a significantly improved adhesion in contrast to samples that were not cleaned. The layer no longer flakes off the silver substrate. Nevertheless, small blisters appear on the protective layer after autoclaving. These indicate that the layer is weakened by the stress.
Investigation on adhesion strength of Parylene-C coatings with different adhesion promotion methods
(2021)
Delamination of encapsulation materials (here the polymer Parylene-C) is one of the biggest failure mechanisms for active medical implants. This problem is addressed by the application of different pre-treatment and adhesion promotion methods. The methods applied in this research are oxygen and Silane A-174 solution pre-treatment and Silane A-174, titanium oxide and Trimethylsilane as adhesion promoters. The adhesion forces of these methods are quantified after different soaking times in phosphate buffered saline (PBS) solution to mimic environment of the human body.
In recent years, several studies have reported inadequate financial capability. Studies in Germany have shown similar results. While there was no statewide initiative, learning offers were available. However, the financial capability level did not increase over time. As a possible reason, the Dunning-Kruger Effect was hypothesised. According to the Dunning-Kruger Effect, participants with low ability would simply lack the ability to realise their lack of ability. This study investigated the investment capability of participants in Germany and tested for a possible Dunning-Kruger Effect. The results have shown no evidence for a Dunning-Kruger Effect. The study’s results were supportive of literature critical on the Dunning-Kruger Effect.
The major objective of this thesis is to analyse the given investment incentives for renewable energies, especially for photovoltaics, in Germany and to make recommendations for potential investors who are willing to invest. For this reason the author decided to check the incentives for profitability.
In the first part, the origins of and present strategies for structural changes in the energy sector are explained. The fact is that global warming mainly is man-made. Green house gas emissions should be reduced by focusing on the expansion of renewable energies. The paper then identifies the provided investment incentives and further highlights the
advantageousness of each incentive. In a detailed central section the thesis examines six model calculations. The applied method to carry out a valuation of the investment is the net present value method. Payments-in and payments-out of the potential investment are compared and discounted to determine the net present value. The results of the calculations demonstrate that selling the generated electric power completely is uneconomically due to the declining feed-in compensation. The associated investment incentives were unable to improve the result. By contrast, private consumption of the generated electric energy is gaining in importance. Energy storage devices are installed and promoted correspondingly. Consequently, the provided investment incentives are profitable and favorable. On the basis of the results of these calculations, it can be concluded that the expansion of renewable energies is an ongoing process characterized by changes in the structure of provided investment incentives. These data support the view that in the future there is going to be a strong tendency to store the electric energy generated by renewable energies.
Irrational risk perceptions after the Fukushima accident? It depends how you ask the question
(2012)
Individual medicine gained increasing popularity in the medical industry in the past years. Especially oncology plays a major role in individual medicine, as significant research has been done in this area in the last decade. In order to provide individual treatment to patients, individualized medicine in cancer therapy uses molecular genetic examination of blood or tumor tissue.
This paper discusses individual treatment approaches for the selected diseases of prostate cancer and leukemia. Individual medicine in prostate cancer is still considered to be in its infancy whereas in leukemia it is already advanced. Conventional treatment in prostate cancer is highly standardized and well-developed and thus, individual approaches in PCa are not yet well-established or well-researched. Therefore, the relevance of individual treatments in prostate cancer is still to be discussed. In contrast to that leukemia has a promising future in the area of individualized medicine. However, individualized treatments are still very expensive and health insurances only cover a limited amount of financial expenses. As genetic testing is becoming more significant and is likely to be used more often in the future, the cost for individual treatments are expected to decrease over time. Also, this paper suggests future implications for the application of individual medicine in Germany in the areas of health care promotion, disease prevention and disease management until the year 2030.
Highlights of the paper:
• Individual medicine in leukemia is already well-established, however necessity of individual approaches in prostate cancer is discussed
• Individual medicine is currently very cost-intensive but increases the quality of life and the lifespan.
• In order to implement individual medicine in the future it is anticipated to improve health care promotion, disease prevention and disease management.
It is not a mystery that us humans want what is not necessarily good for us. The fundamental desire, want and even need for foods high in fat, salt and sugar is embedded deep within us. It is part of our evolutionary biology, that we crave these unhealthy substances, due to their original scarcity, and our physical need for them in order to survive.
Patient engagement is the most important element in the process of research/development of medicinal products and healthcare management in today’s times. In a country like India which has a huge population and limited state of regulatory affairs it becomes important to walk the extra mile to protect the patient lives and truly serve them. Time and again it is seen that there is no or limited focus on patient centric processes and we still tend to focus on sponsors as the key stakeholder.
The author in this thesis aims to focus on the clinical trial landscape of India and determine if there is a need to improve the clinical trial processes. If yes, then what type of change is the audience looking for.
The author tries to introduce the human element in the process and remind us all that it is the ‘patients’ who are the centre for the drug development process and serving them and alleviating their pain in the true purpose of the process.
The author along with the helping us find a definition of patient centricity in India, also proposes a model that can be used by the Indian pharmaceutical companies to focus on patient centricity at different stages of the drug development cycle within their organisations.d
Climate change, commodity price volatility and scarcity of natural resources are some of the clear signals that indicate the unsustainability of the traditional linear economy.
Manufacturing companies in the European Union are becoming aware of playing a key role at the heart of these problems, as they are responsible of determining the impact that products have on the environment and on the economy, during their first lifecycle and after. Manufacturers therefore started to acknowledge the possibility of adapting their business model to circular strategies. The main objective of circular economy is the decoupling of economic growth from natural resources while providing economic and environmental prosperity. This study aims to determine whether circular economy can represent a viable alternative to the current linear economic system in the context of European manufacturing sector. To answer this question, a literature review was conducted to gather qualitative existing data that has been selected according to relevance and analyzed.
The results showed that circular economy has the potential to be successfully applied to the European manufacturing sector, representing a prosperous alternative to the traditional linear economy.
The sharing economy is a global phenomenon and an alternative consumption model based on granting access to owned surplus of resources to strangers through web-based platforms in exchange for money or for free. While this model quickly gained popularity in the transactions between individuals (C2C or P2P) and between individuals and companies (B2C), the potential of sharing between enterprises (B2B) is yet to be harnessed. Among the positive consequences the sharing economy claims to deliver, such as increased efficiency, waste-cut, and community-building, sustainability is the fundamental consequence this paper will focus on. Specifically, this thesis aims to determine if the sharing economy in the B2B market is a sustainable business model for the future. The obtained results show that, while the sharing economy in B2B, especially in small to medium-size companies, has the potential to bring more efficiency and sustainability for the future, this seems not to be the case in the present. This is the result of several external limitations, especially in the field of technology, legality and in society, but also of internal factors, such as conceptual and empirical unclearness that occasionally even lead to business misconduct and abuse of the positive connotation of the sharing economy model.
Iraq offers the two extremes: It is extremely rich on everything from history, people, water, culture and natural resources, and it is extremely instable. Both factors offer the perfect working atmosphere for someone loving risk, challenging danger and wanting to change something on big scale. Having the comfort of living in Germany and writing my Thesis, it allowed me to analyze the following research question: “Is working in Iraq, despite the circumstances, possible?” The answer to this question cannot be black and white. It needs a 360 degree analysis including the political situation, the legal situation, the security situation and many other factors that influence “working in Iraq”.
This Bachelor Thesis therefore moves from broad to specific. First, Iraq is being split up and the specific parts are being described. This serves the intention to clarify how difficult the situation in Iraq is. Then, an outlook on the coming months is given according to my own opinion. Going from Iraq to Italy and back intensifies the view on what was done elsewhere to overcome the “postwar status” and tries to find parallels. Going from broad to specific, the example of a planned German Bakery Shop in Nasiriya allows measuring the ability to work in Iraq on a real example. Therefore, the a Business Plan was conducted. In order to understand if such Business Plan can be applied, interviews were conducted. The interviewees are Samer and Hadeel, a restaurant owner in Nasiriya and a lawyer in Baghdad and Amman (Jordan). 19 questions were asked, summing up the issues discussed in the Bachelor Thesis and giving a clear picture what someone has to deal with when working in Iraq. The result is that working in Iraq as a German graduate is possible.
Concluding, working anywhere around the world is possible as long as someone prepares sufficiently. Personally I decided against opening a German Bakery Shop in Iraq because of several reasons which have nothing to do with the possibility of working in Iraq or not.
Nowadays Islamic banking is relatively unknown in the Western world, but Islam has around 1,57 billion believers worldwide and is the second largest religion in the world. The number of Muslims is constantly increasing over the years. Not only for Muslims, but also for all other people this system provides a new and different way of banking.
Business-to-business services make up an increasing share of the total economy. Due to growing specialization companies are more and more outsourcing non-core services. The aim of this thesis is to examine the market trends, the competitive landscape and success factors for proving IT supply chain services.
IT supply chain services are service provisions that encompass the procurement of equipment, the staging and personalization, as well as the logistics of end-user devices. This thesis explores the business case of Computacenter, a European IT-service provider. Given the complexity of IT supply chain service provisions and the distinct characteristics of services, major contracts in this area are examined in order to derive good and best practices. Two research questions are addressed. The first one examines how Computacenter performs against major trends in the IT service market by reflecting customer demand and competitors’ strategies. The second research questions aims at identifying in which areas and how Computacenter could improve the delivery of its IT supply chain services.
The applied research methods include secondary data, such as competitors’ websites or industry reports, primary data like surveys or observation, as well as descriptive and comparative methods. The research is divided into three sections. First, the theoretical fundamentals of IT service management and the Service Supply Chain Management are outlined, focusing on reference models and methods used by the respective company. Second, the company itself and the market environment including competition and customer aspects are examined. Third, an empirical study conducted in the form of a survey on selected projects assesses Computacenter’s best practices. In the final part of this thesis practical recommendations are given including all investigated aspects.
Key factors sustainability and digitalization – an analysis of countries performance and actions
(2022)
Climate change is an extremely relevant topic nowadays in everyday life, politics and even economy. Therefore, it is important to understand the dimension of this topic and be conscious about how it is affecting everyone’s life. Many people’s base of living is fading through for example crop failure or natural disasters. Next, businesses must also adapt since many governments have implemented emission caps which force organizations to restructure business processes to meet those goals. Adapting to new circumstances or ways of working is crucial to fight back menacing environmental changes and without coherent enforcement, the goal of combating global warming and tackling climate change can’t be achieved.
But how can these challenges be fought against in a meaningful way and matter in a long-term perspective? There were already some attempts made like setting a maximum for global warming worldwide. On the other hand, there is no country which can meet those in the required period of time. Next to battle the problem of global warming every country in the world has to take part and work together, or else the goals can’t be fulfilled, which can occur to be difficult and hard to execute in reality. If there is no coherency in enforcement the aim of fighting the global warming and climate change can’t be attained.
The essential query I want to obtain with this thesis is what the possibilities for countries through sustainability and digitalization to live and operate in a more renewable way are. Part of this work will be assessing Sweden’s progress and development in this field since they are pioneers in both key areas. Afterwards there will be a comparison to Morocco and Singapore which at first glance differ completely from each other to work out differences and common ground.
In the end contrasting key factors like climate and geography, politics or economy etc. will give insights about opportunities and unused potential in making the world more sustainable with the help of digitalization.
The technique of acquiring the data is mainly focused on news articles, tech, and business publications as well as governmental proclamation and reporting of environmental portals. The reasoning for this is that the topic is very up to date and the source of information needs to be as recent as possible.
The intention of the project is to generate understanding and awareness about how sustainability and digitalization can be drivers and work together in a complex sphere like environmental change.
This study investigates the interrelationship between Knowledge Management (KM) and employee satisfaction and proposes strategic implementation steps for the further development and acceptance improvement of a new Operational Framework (Blueprint) at Robert Bosch GmbH, Power Electronics. Two primary research questions are addressed: (1) whether KM offers insights into and explanations for employee satisfaction issues, and (2) what strategic implementation steps can be derived for the development and acceptance of the Blueprint. The research commenced with an analysis of existing employee satisfaction surveys, supplemented by in-depth interviews, to understand the current state of employee satisfaction in the business unit undergoing transformation. The literature review was then conducted to ascertain the connection between KM and employee satisfaction. Subsequently, the study engaged in multiple interviews with top management in the Power Electronics business unit to identify implementation measures and best practices across various industries. A comprehensive set of practices was established and subsequently evaluated in a workshop involving line employees from the business unit, integrating theoretical findings with practical experiences. The final recommendations were grouped into three categories: Meeting Structure, Culture and Leadership, and Knowledge Management Guidance. The findings underscore the significance of KM in promoting employee satisfaction and suggest that the proposed strategic steps can foster the further development and acceptance of the Blueprint at Robert Bosch GmbH, Power Electronics.
Companies are confronted with the challenge of having to transfer more and more knowledge in a shorter time to fewer available employees. At the same time opportunities based on digitalization and smart services are rising. Digital training offers advantages as flexibility, accessibility, in-teractivity and cost savings. This explorative paper investigates the framework conditions, requirements and opportunities for new approach-es of providing knowledge by smart services for professional users. Fur-ther, the paper will investigate how smart service approaches for knowledge provision can be transferred and integrated into product ser-vice systems and suitable business models.
Knowledge Sharing in Enterprise Social Networks - Exploring the use of the Aesculap GMS Magazine
(2019)
This study assesses the usage of the Aesculap GMS Magazine, an Enterprise Social Network dedicated to the employees of the Global Marketing and Sales area at the Aesculap division of the B. Braun Melsungen AG, with particular focus on knowledge sharing. To address this issue, the purpose of this study is to explore the users’ perceptions, as well as the strengths and weaknesses and usage enablers and barriers of the Aesculap GMS Magazine via a group discussion with four potential users, semi-structured interviews with two experts and an employee survey. The interviews and the group discussion were recorded and analyzed and the survey was assessed with descriptive statistics. Results show that the vast majority is satisfied with the Aesculap GMS Magazine and does not perceive any barrier that hinder them from engaging in knowledge sharing. This data was further processed in a Scoring Model which finally resulted in a prioritization of various alternative measures that will be useful for the future of the Aesculap GMS Magazine.
In the context of Industry 4.0, smart factories use advanced sensing and data analytic technologies to understand and monitor the manufacturing processes. To enhance production efficiency and reliability, statistical Artificial Intelligence (AI) technologies such as machine learning and data mining are used to detect and predict potential anomalies within manufacturing processes. However, due to the heterogeneous nature of industrial data, sometimes the knowledge extracted from industrial data is presented in a complex structure. This brings the semantic gap issue which stands for the lack of interoperability among different manufacturing systems. Furthermore, as the Cyber-Physical Systems (CPS) are becoming more knowledge-intensive, uniform knowledge representation of physical resources and real-time reasoning capabilities for analytic tasks are needed to automate the decision-making processes for these systems. These requirements highlight the potential of using symbolic AI for predictive maintenance.
To automate and facilitate predictive analytics in Industry 4.0, in this paper, we present a novel Knowledge-based System for Predictive Maintenance in Industry 4.0 (KSPMI). KSPMI is developed based on a novel hybrid approach that leverages both statistical and symbolic AI technologies. The hybrid approach involves using statistical AI technologies such as machine learning and chronicle mining (a special type of sequential pattern mining approach) to extract machine degradation models from industrial data. On the other hand, symbolic AI technologies, especially domain ontologies and logic rules, will use the extracted chronicle patterns to query and reason on system input data with rich domain and contextual knowledge. This hybrid approach uses Semantic Web Rule Language (SWRL) rules generated from chronicle patterns together with domain ontologies to perform ontology reasoning, which enables the automatic detection of machinery anomalies and the prediction of future events’ occurrence. KSPMI is evaluated and tested on both real-world and synthetic data sets.
Lactoferrin inhibits neutrophil apoptosis via blockade of proximal apoptotic signaling events
(2011)
In edge/fog computing infrastructures, the resources and services are offloaded to the edge and computations are distributed among different nodes instead of transmitting them to a centralized entity. Distributed Hash Table (DHT) systems provide a solution to organizing and distributing the computations and storage without involving a trusted third party. However, the physical locations of nodes are not considered during the creation of the overlay which causes some efficiency issues. In this paper, Locality aware Distributed Addressing (LADA) model is proposed that can be adopted in distributed infrastructures to create an overlay that considers the physical locations of participating nodes. LADA aims to address the efficiency issues during the store and lookup processes in DHT overlay. Additionally, it addresses the privacy issue in similar proposals and removes any possible set of fixed entities. Our studies showed that the proposed model is efficient, robust and is able to protect the privacy of the locations of the participating nodes.
Organizations invest money, time and energy on fostering gender diversity at the workplace. Other than being fair, diversity has been proved to improve company performance, as it promotes innovation, creative thinking and decision-making capabilities, as an example. However, having said that, there are still some sectors or areas which lack of a fair representation between men and women. In order to build a more balanced workforce, it is necessary for the organization to find ways to be appealing to all groups. One way can be to focus on the recruitment process.
The recruitment process contains some major and minor biases, which can influence the hiring decision. In most recent years, it has been revealed that the words used in job postings can in fact encourage or discourage different groups of people, in this case, men and women. That is due to the fact that language is gendered, because men and women communicate who they are, what they want, what they need differently. Language is strictly related to how one person is perceived in the society and the role they have, with the risk of falling into a stereotype.
The objective of the paper is to study and explain the effect of wording in job postings. To do so, around 200 participants have replied to a questionnaire which presents ten sets of job descriptions containing and comparing gendered words. The questionnaire allows to compare the answers from men and women and assess to what extend wording influence the application decision. It appears that women are more reactive to biased language than men and they prefer female-themed terms; despite being more indifferent, men also lean towards feminine language in some cases.