TY - THES A1 - Shrestha, Sabita T1 - Named Entity Recognition for Nepali Text Using Pre-Trained BERT-Based Model N2 - The popularity of using transformer-based models like Bidirectional Encoder Representations from Transformers (BERT) for various Natural Language Processing (NLP) tasks is increasing rapidly. Unfortunately, the research is very limited for low-resource languages like Nepali. This study examines the utilisation of pre-trained BERT-based NERNepal for Named Entity Recognition (NER) tasks in Nepali text. The main goal is to investigate the efficiency of the NERNepal model, which has been pre-trained and fine-tuned on Nepali corpus data for NER. This research provides new insights by evaluating the NERNepal model on two distinct datasets. It addresses unique linguistic challenges specific to Nepali. The study also offers a detailed analysis of the model's strengths and weaknesses. By focusing on diverse datasets, this study shows how adaptable the model is and how its performance varies. These aspects have not been explored extensively before. The EverestNER dataset is one of the largest human-annotated datasets in Nepal so far, and the Nepali_NER dataset is also BIO-annotated for the NER task, which helped to compare the model’s prediction. The performance was better on the Nepali_NER dataset in comparison with another selected dataset. The EverestNER dataset contained many complex words for ORG connected with many tokens for a single entity with different contextual meanings and different annotations for the same word in different tokens as per context. Because of this, it created more confusion for the prediction, especially for the ORG entity. It had a similar issue with another dataset as well, but the label annotation was better in comparison. Furthermore, the research tries to clarify the difficulties and constraints related to utilising pre-trained BERT models for NER in low-resource languages such as Nepali. The study focuses on research areas on the efficacy of the model and its performance on two different datasets. Post-training with the EverestNER train dataset was attempted, but due to computational resource limitations, only a maximum of 3 epochs was possible, which did not improve the evaluation. It also has implications for enhancing language processing tools for Nepali. The results show the ability of a pre-trained BERT-based model to improve NER skills for Nepali text. However, further study is required to overcome the current obstacles to identifying complex words. The availability of high computational resources and the possibility of combining other NER approaches with a transformer-based model could increase the performance and robustness of the model. Keywords: Named Entity Recognition, Natural Language Processing, BERT, low resources language KW - Named Entity Recognition KW - Natural Language Processing KW - BERT KW - low resources language Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19870 ER - TY - THES A1 - Luitjens, Kim Jana T1 - Auswirkung von Wertschätzung auf das organisationale Commitment mit der Unterscheidung zwischen dem öffentlichen Dienst und der Privatwirtschaft N2 - Durch den aktuellen Fachkräftemangel stehen Unternehmen vor der Herausforderung, sich von der Konkurrenz abzuheben und ihre Attraktivität zu steigern, um Mitarbeitende für ihr Unternehmen zu gewinnen. Schließlich stellen diese einen entscheidenden Faktor für den eigenen Unternehmenserfolg dar. Dies wirft die Frage auf, wie intensiv sich Unternehmen mit einer wertschätzenden Unternehmensführung auseinandersetzen und welche Auswirkung diese auf das Commitment, also die Bindung der Mitarbeitenden an ihre Organisation, nehmen. Und gibt es Unterschiede im Commitment je nach Organisationstyp? Da die Zusammenhänge aktuell Forschungslücken aufweisen und durch die Zeiten des Krisenmanagements immer bedeutender werden, ist das Ziel der vorliegenden Arbeit, Wertschätzung in Unternehmen zu differenzieren und den Einfluss der Wertschätzung durch Vorgesetzte auf die drei Komponenten des Commitmens nach Meyer & Allen (1991) sowie auf das organisationale Commitment zu erfassen. Ferner wird der Einfluss des Organisationstypen (öffentlicher Dienst vs. Privatwirtschaft) auf das organisationale Commitment beleuchtet und die entstehende Wechselwirkung mit der Ausprägung der Wertschätzung betrachtet. Hierfür wurde eine Querschnittstudie mit Studienteilnehmenden durchgeführt, die einer*m Vorgesetzten unterstehen und im öffentlichen oder privaten Sektor beschäftigt sind. Es konnte ein Datensatz von N = 178 verzeichnet werden. Die Ergebnisse des ersten gerichteten t-Tests zeigen, dass hohe Werte in der Wertschätzung signifikant mit hohen Werten im affektiven Commitment einhergehen. Gleichzeitig zeigen zwei weitere, ungerichtete t-Tests keine signifikanten Unterschiede hinsichtlich der Ausprägung der Wertschätzung – weder auf das normative noch auf das kalkulatorische Commitment. Ferner wurde eine Varianzanalyse (ANOVA) im 2x2 Design berechnet. Die Ergebnisse zeigen, dass es einen signifikanten Unterschied in der Ausprägung der Wertschätzung hinsichtlich des organisationalen Commitments gibt. Zudem wurde festgestellt, dass die Unterscheidung des Organisationstypen keinen signifikanten Einfluss auf das organisationale Commitment darstellt und dass das organisationale Commitment in den beiden Organisationstypen nicht signifikant von der Ausprägung der Wertschätzung beeinflusst wird. Die Studie setzt an Forschungslücken an und zeigt wichtige Implikationen und Anregungen für zukünftige Studien auf. N2 - Due to the current shortage of skilled workers, companies are faced with the challenge of setting themselves apart from the competition and increasing their attractiveness in order to attract employees to their company. After all, they represent a decisive factor in a company's success. This raises the question of how intensively companies deal with appreciative corporate management and what impact this has on commitment, referring to loyalty of employees to their organization. And are there differences in commitment depending on the type of organization? As there are currently gaps in the research on these relationships and they are becoming increasingly important due to the times of crisis management, the aim of this study is to differentiate appreciation in companies and to record the influence of appreciation by superiors on the three components of commitment according to Meyer & Allen (1991) and on organizational commitment. Furthermore, the influence of the type of organization (public sector vs. private sector) on organizational commitment is examined and the resulting interaction with the level of appreciation is considered. A cross-sectional study was conducted with study participants who report to a manager and are employed in the public or private sector. A data set of N = 178 was recorded. The results of the first directed t-test show that high values in appreciation are significantly associated with high values in affective commitment. At the same time, two further, undirected t-tests show no significant differences in regard to the level of appreciation - neither in normative commitment nor in calculative commitment. In addition, an Analysis of Variance (ANOVA) was calculated in a 2x2 design. The results show there is a significant difference in the level of appreciation with regard to organizational commitment. At the same time, it was found that the distinction between organizational types doesn‘t have a significant influence on organizational commitment and that organizational commitment in the two organizational types isn‘t significantly influenced by the level of appreciation. The study addresses research gaps and highlights important implications and suggestions for future studies. KW - Wertschätzung in Unternehmen KW - organisationales Commitment KW - öffentlicher Dienst KW - Privatwirtschaft Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19898 ER - TY - THES A1 - Daniel, Bernwald T1 - Analyse der Entwicklung von Virtualisierung zu Containerisierung der IT-Infrastruktur in der öffentlichen Verwaltung unter besonderer Berücksichtigung von Cybersicherheit und Geschäftskontinuität N2 - This thesis examines the development from virtualisation to containerisation of the IT infrastructure in public administration. In particular, the aspects of cyber security and business continuity are analysed. The study covers the basics of virtualisation and containerisation, including their architecture and isolation mechanisms. Furthermore, the security risks and benefits of both approaches are analysed, especially with regard to container outbreak scenarios and vulnerability lifecycle management. A particular focus is placed on the breakdown of containerisation into different groups, including container runtime, container image and orchestration, in order to enable a differentiated view of security and efficiency potentials. Based on these findings, a concrete architecture proposal is presented that includes recommendations for the secure orchestration and management of containers. The aim of the work is to show how modern container technologies such as Docker and Kubernetes can provide a secure, scalable and cost-efficient platform for public administrations. N2 - Die vorliegende Arbeit untersucht die Entwicklung von der Virtualisierung hin zur Containerisierung der IT"=Infrastruktur in der öffentlichen Verwaltung. Dabei werden insbesondere die Aspekte der Cybersicherheit und der Geschäftskontinuität beleuchtet. Die Untersuchung umfasst die Grundlagen der Virtualisierung und Containerisierung, inklusive ihrer Architektur und Isolationsmechanismen. Des Weiteren werden die Sicherheitsrisiken und "=vorteile beider Ansätze analysiert, insbesondere im Hinblick auf Container"=Ausbruchsszenarien und das Schwachstellen"=Lifecycle"=Management. Ein besonderer Schwerpunkt liegt auf der Aufteilung der Containerisierung in verschiedene Gruppen, einschließlich Container Runtime, Container Image und Orchestrierung, um eine differenzierte Betrachtung der Sicherheits"= und Effizienzpotenziale zu ermöglichen. Auf Basis dieser Erkenntnisse wird ein konkreter Architekturvorschlag präsentiert, der Empfehlungen für die sichere Orchestrierung und Verwaltung von Containern beinhaltet. Ziel der Arbeit ist es, aufzuzeigen, wie moderne Container"=Technologien wie Docker und Kubernetes eine sichere, skalierbare und kosteneffiziente Plattform für öffentliche Verwaltungen bieten können. Y1 - 2024 ER - TY - THES A1 - Engeln, Felix T1 - Verbesserung der Nutzbarkeit von Open Data-Portalen: Analyse, Schwachstellenidentifikation und Prototypentwicklung N2 - Diese Arbeit untersucht die Verbesserung der Benutzerfreundlichkeit von Open Data-Portalen durch nutzerzentrierte Designansätze. Durch die Entwicklung eines Prototyps werden spezifische Funktionen wie intuitive Suchmechanismen, fortschrittliche Analysetools und KI-Integration, exemplarisch durch ChatGPT, evaluiert. Besonders hervorgehoben wird die Bedeutung sozialer Interaktionsmöglichkeiten, die eine Gemeinschaft rund um die Daten fördern und die Datenqualität durch Nutzerfeedback steigern. Die Evaluierungsergebnisse zeigen eine deutliche Zufriedenheitssteigerung der Nutzenden, was das Potenzial dieser Ansätze unterstreicht. Die Arbeit bildet eine Grundlage für die kontinuierliche Entwicklung und Forschung im Bereich Open Data, um deren Nutzbarkeit und den demokratischen Nutzen zu maximieren. N2 - This thesis examines the enhancement of the usability of open data portals through user-centred design approches. The development of a prototype enables the evaluation of specific features, including intuitive search mechanisms, advanced analytics tools and AI integration, exemplified by ChatGPT. The significance of social interaction options that foster a community around the data and enhance data quality through user feedback is emphasised. The evaluation results demonstrate a notable enhancement in user satisfaction, which underscores the potential of these approaches. The work serves as a foundation for continuous development and research in the field of open data, with the objective of optimising its usability and democratic benefits. Y1 - 2024 ER - TY - THES A1 - Gedikoglu, Furkan T1 - Versuchsorientierte Analyse von Federated Learning und Centralized Machine Learning-Methoden zur Bildklassifizierung unter besonderer Berücksichtigung von Datenschutz, Effizienz und Effektivität N2 - Die vorliegende Arbeit befasst sich mit der Untersuchung der Effektivität und Effizienz von verteiltem Fine-Tuning auf Endgeräten im Vergleich zu zentralisiertem, cloudbasiertem Machine Learning. Zu diesem Zweck wurden Experimente sowohl mit Federated Learning als auch mit Centralized Machine Learning durchgeführt. Dabei wurden verschiedene Modellarchitekturen, darunter ResNet-20 und ResNet-56, sowie unterschiedliche Parameterkonfigurationen getestet. Die Experimente wurden auf einer Testumgebung mit 21 Mac minis im Cloud Resilience Lab der Hochschule Rhein-Waal durchgeführt. Die Ergebnisse zeigen, dass der zentralisierte Ansatz im Allgemeinen eine höhere Modellgenauigkeit erreicht, während der verteilte Ansatz Vorteile im Bereich des Datenschutzes bietet. Die Analyse der Energieeffizienz ergab, dass der zentralisierte Ansatz weniger Energie verbraucht als der verteilte Ansatz. N2 - This thesis investigates the effectiveness and efficiency of distributed fine-tuning on end devices in comparison to centralized cloud-based machine learning. To this end, experiments were conducted with both federated learning and centralized machine learning. Different model architectures, including ResNet-20 and ResNet-56, and different parameter configurations were tested. The experiments were conducted on a test environment with 21 Mac minis in the Cloud Resilience Lab at Rhine-Waal University of Applied Sciences. The results show that the centralized approach generally achieves higher model accuracy, while the federated approach offers advantages in the area of data protection and privacy. The analysis of energy efficiency demonstrated that the centralized approach consumes less energy than the federated approach. Y1 - 2024 ER - TY - THES A1 - Khatiwada, Sabin T1 - AUTOMATION OF SOLAR WATER DISINFECTION (SODIS) ON A SMALL-SCALE USING ARDUINO DUE N2 - Clean water is essential for human health and well-being. In many parts of the world, access to safe drinking water is limited, leading to various waterborne diseases. Solar water disinfection(SODIS) is a simple and cost-effective method used to purify water using sunlight, where itinactivates the pathogens and makes the water safe for consumption. This disinfection process involves filling polyethylene terephthalate (PET) bottles with water and exposing them to sunlight for a specified period. The aim of this thesis is to develop a working prototype that exploresthe automation of SODIS on a small-scale using Arduino Due, a microcontroller board that offers advanced features for automation. The prototype consists of the necessary parts to perform SODIS automatically. In conventional SODIS, it is assumed that the required SODIS criteria are met within 6 hours of a sunny day. In contrast, in the prototype microcontroller pumps the water into the PET bottle, monitors sunlight exposure for 6 hours, determines disinfection, and then pumps out the water for consumption only when the threshold values for irradiance are met. If the conditions are not met, the exposure is extended by an hour each time and checked again. The prototype automates the SODIS on a small-scale using cost-efficient components. However, the prototype lacks oxygenation capacity, and there is a possibility of entering an infinite loop if the irradiance values are not met for a long time. The prototype could be further developed with extra sensors and extensive research for advanced automation. KW - Solar water disinfection KW - SODIS KW - Water disinfection KW - Irradiance KW - Sensors KW - Automation Y1 - 2024 ER - TY - THES A1 - Wissigkeit, Tobias T1 - Interaction design strategies for conversational video games to accommodate for anomalous user- and AI behaviors: A case study on integration strategies for interaction-based AI technologies in games using participatory design methods. N2 - The recent development of generative artificial intelligence (AI) has inspired some game developers to try and integrate it into games. Anomalous behavior by generative AI or users seems undesirable and effort is being made to find ways on how to prevent anomalous responses by generative AI. However, these responses are a unique trait of generative AI and in our project, we explore strategies on how the negative effects of anomalous user and AI behavior can be mitigated, instead of trying to prevent them from appearing. We want to leverage their uniqueness as an intended game mechanic and see in what context these strategies can work. To achieve these goals, we researched already existing integrations of generative AI features in games and entertainment as well as possible connections to game mechanics and systems that are not related to AI. Based on this, we created 4 prototypes of conversational games with generative AI characters, which allowed the AI to create anomalous responses and did not limit the player freedom of what they may input. In our 36 participatory design sessions, we found that anomalous user and AI behavior can have a positive influence on the player's experience if a game's story is set up in a way that it can allow new and diverging story threads, that are created by the player and AI, to be integrated and if there are supplementary game mechanics, that allow the player to follow the intended story and complete the game. KW - Generative AI KW - Video Game Design KW - Human-AI Interaction KW - AI Hallucinations KW - Participatory Design Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19710 ER - TY - THES A1 - Kottek, Nick T1 - Echtzeit-Erkennung von Gesten des deutschen Fingeralphabets mithilfe eines Convolutional Neural Networks N2 - Sign language is an important factor in the integration of deaf and hard of hearing people into society. Due to the limited number of people who speak sign language, there is a communication barrier that needs to be addressed. In recent years, sign language has been an important field of research. There have been numerous attempts at trying to find a solution to this problem. This thesis focuses on the German finger alphabet, which has not been researched as much. It examines whether it is possible to recognize the gestures of the German finger alphabet in real time with a convolutional neural network. For that, literature is consulted, and a prototype is developed. The prototype includes a newly created dataset with 2,500 images distributed over 25 gestures, a convolutional neural network, and software for real-time translation of a video stream. The prototype demonstrates the feasibility of realizing such a task. The convolutional neural network achieves an accuracy of 99.61%. On a powerful desktop computer, the prediction of a single frame takes between 36 and 40 ms. However, there are some limitations and restrictions to the quality of prediction caused by factors such as lighting and background. Additionally, certain similar gestures, such as M and N, are difficult to distinguish. Based on these results, ideas and suggestions for future studies are presented. KW - convolutional neural network KW - sign language KW - German finger alphabet KW - image classification KW - real-time recognition Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19768 ER - TY - THES A1 - Skaf, Leen T1 - Living Green Walls in the Workplace: Evaluating the Impact on Employee Well-being, Productivity, and Indoor Environmental Quality N2 - Living Green Walls (LGWs) represent a promising pathway towards sustainable agriculture and have proven psychological benefits applicable to educational and workspace environments (Van den Berg et al., 2016). This bachelor thesis investigates the impact of LGWs on indoor environmental quality, employees' well-being, and performance in the offices of the Facility Management Department of Hochschule Rhein-Waal (HSRW) - Kleve campus. A hybrid methodology is adopted, combining sensor measurements of physical parameters and a self-developed questionnaire assessing perceived LGW impact. The sensors are set up in four offices, three of which featured LGWs, while the questionnaire is distributed online to workers before and after the LGW installation. Eight workers participated in the study, of which 62.5 % were female, and 37.5 % were male, with age range between 25 and above 45 years old. The results indicate a positive overall impact of LGWs on office environmental quality and employee well-being. The CO2 concentration was reduced on average by 30 ppm, whereas the relative humidity was increased, on average, by approximately 6 %. Hence, the LGWs enhanced slightly the air quality in the offices. Moreover, the target group claimed that their motivation level, on average, was raised by 15% after exposure to the LGWs. Hence, half of them agreed that the LGWs impacted their performance positively. However, challenges emerged concerning LGW technical design and employee engagement with the research. Despite obstacles, the study suggests potential for future improvements in methodology and technical aspects, offering promising project ideas for further research. Furthermore, the overall positive impact of LGW in this study has proven that integrating such systems into work environment can boost the motivation level of the workers and improve the environmental quality in workspaces. Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19696 ER - TY - THES A1 - Tebest, Marie T1 - Schneller Nachweis der Methicillin-Resistenz bei Staphylokokken-Isolaten Vergleich verschiedener Methoden N2 - Methicillin Resistente Staphylococcus aureus (MRSA) gehören zu gefürchteten Erregern eines bunten Bildes von Infektionen, die bis zu einer Sepsis reichen können. Eines der größten Probleme von MRSA ist die hohe Pathogenität und die Entwicklung von zusätzlichen Resistenzen gegenüber weiteren Antibiotikaklassen. Die schnelle Identifizierung von MRSA und das Anlegen eines Antibiogramms ist daher entscheidend für eine frühe Therapie-Empfehlung und damit verbunden eine optimale Behandlung des Patienten. Aufgrund dessen wird in der vorliegenden Arbeit nach weiteren Möglichkeiten in der mikrobiologischen Diagnostik gesucht, um die Zeitspanne zwischen dem ersten Laborverdacht auf eine MRSA-Infektion und der spezifischen Antibiotikatherapie nach der Erregeridentifizierung zu reduzieren. Dazu wurden zwei verschiedene Methoden (MRSA-polymerase chain reaction (PCR) und Penicillin-Bindeprotein 2a (PBP2a)-Schnelltest), bezüglich ihrer Leistungsdaten mitdem Goldstandard zum Nachweis der Methicillin-Resistenz (VITEK-2 und Cefoxitin� Bestätigungstest) verglichen. Die klinischen Isolate für die experimentelle Durchführung stammen aus Blutkulturflaschen und Abstrichen von intraoperativen Wunden. Insgesamt wurden 74 Isolate retrospektiv getestet, darunter 26 (35%) MRSA� Isolate, 24 (32,5%) Methicillin-sensibler Staphylococcus aureus-Stämme und 24 (32,5%) Koagulase-negative Staphylokokken (KnS). In der MRSA-PCR kam es zu 15 (20%) fraglichen Ergebnissen, weshalb die Methode für eine zuverlässige Routinediagnostik nicht geeignet erschien. Nach Ausschluss der fraglichen Ergebnisse hatte die PCR einen positiven prädiktiven Wert (PPW) von lediglich 65,7%. Die Sensitivität lag bei 92,9%, die Spezifität bei 93,5% und der negative prädiktive Wert (NPW) bei 99,0%. Der Schnelltest besaß eine Spezifität und einen PPW von 100%, eine Sensitivität von 97,3% und einen NPW von 99,6%. Des Weiteren ergaben sich zusätzliche Vorteile bei der Verwendung des Schnelltestes durch die kürzere Laufzeit, den geringeren Kostenaufwand und die Einfachheit der Durchführung. Der ermittelte Zeitgewinn durch PCR oder Schnelltest betrug im Vergleich zum VITEK-2 zwischen 15 und 23,8 Stunden, was für die betroffenen Patienten von erheblichen klinischem Vorteil war. Zusammenfassend hatte der PBP2a-Schnelltest sowohl für S. aureus- als für KnS-Isolate bessere Leistungsdaten als die verwendete MRSA-PCR und wurde deshalb in die Routinediagnostik des Labors eingeführt. N2 - Methicillin-resistant Staphylococcus aureus (MRSA) are among the feared pathogens of a colourful picture of infections that can range up to sepsis. One of the biggest problems of MRSA is its high pathogenicity and the development of additional resistance to other classes of antibiotics. The rapid identification of MRSA and the creation of an antibiogram is therefore crucial for an early recommendation of therapy and therefore an optimal treatment of the patient. For this reason, the present work seeks further possibilities in microbiological diagnostics in order to reduce the time span between the first laboratory suspicion of MRSA infection and the specific antibiotic therapy after pathogen identification. For this purpose, two different methods (MRSA� polymerase chain reaction (PCR) and penicillin-binding protein 2a (PBP2a) rapid test) were compared with the gold standard for the detection of methicillin resistance (VITEK-2 and cefoxitin confirmatory test). The clinical isolates oft he study were derived from blood culture bottles and swabs from intraoperative wounds. A total of 74 isolates were retrospectively tested including 26 (35%) MRSA, 24 (32.5%) methicillin� sensitive Staphylococcus aureus and 24 (32.5%) coagulase-negative staphylococci(CnS). In the MRSA-PCR 15 (20%) questionable results were obtained, which is why the method did not appear suitable for reliable routine diagnostics. After excluding the results in question, the PCR had a positive predictive value (PPV) of only 65.7%. The sensitivity was 92.9%, the specificity was 93.5% and the negative predictive value (NPV) was 99.0%. The rapid test showed a specificity and PPV of 100%, a sensitivity of 97.3% and a NPV of 99.6%. In addition, the use of the rapid test has yielded additional benefits in terms of shorter turnaround, lower costs and ease of implementation. The estimated time gain by PCR or rapid test was between 15 and 23.8 hours compared to VITEK-2, which was of significant clinical benefit to the affected patients. In summary, the PBP2a rapid test for both S. aureus and CnS isolates had better performance data than the MRSA-PCR used and was therefore introduced into routine laboratory diagnostics. KW - Methicillin-Resistenz Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19727 ER - TY - THES A1 - Haas, Alexandra T1 - Empirische Untersuchung der Ätiologie von subklinischem Wahn in einer gesunden Stichprobe: Der Einfluss von Kindheitstrauma, Theory of Mind Fähigkeiten und einem niedrigen Selbstwert N2 - Hintergrund: Psychotisches Erleben, wie z.B. Wahnerleben und Paranoia, zeigt sich in klinischen sowie in nicht-klinischen Stichproben in unterschiedlichen Ausprägungsstärken. Der aktuelle Forschungsstand geht davon aus, dass Wahn dimensional in der Allgemeinbevölkerung ausgeprägt ist und eine hierarchische Struktur aufweist, die von subklinischem Wahn bis hin zu psychotischen Störungen reicht. Risikofaktoren wie Kindheitstrauma, Theory of Mind (ToM) Defizite und ein geringer Selbstwert erhöhen die Wahrscheinlichkeit für wahnhaftes Erleben. Um ein besseres Verständnis der Ätiologie von subklinischem Wahn zu bekommen, ist es wichtig, die Effekte dieser Risikofaktoren in gesunden Stichproben zu untersuchen. Methodik: Die vorliegende Studie untersuchte 100 gesunde Proband*innen der deutschen Allgemeinbevölkerung in Bezug auf subklinisches Wahnerleben. Mittels Fragebögen und computergestützter neuropsychologischer Tests wurde subklinischer Wahn, Kindheitstrauma, ToM-Fähigkeiten und der Selbstwert der Proband*innen erfasst. Mehrere statistische Verfahren, wie eine Hauptkomponentenanalyse sowie Korrelations-, Regressions- und Mediationsanalysen wurden genutzt, um die Zusammenhänge, Varianzaufklärungen und die prädiktive Güte der genannten Variablen in Bezug auf subklinischen Wahn zu untersuchen. Ergebnisse: Subklinischer Wahn liegt in einem geringen Ausmaß in der Stichprobe vor. Ein signifikant positiver Zusammenhang zwischen subklinischem Wahn und Kindheitstrauma wurde gefunden. Zudem konnten signifikant negative Zusammenhänge zwischen subklinischem Wahn und ToM-Fähigkeiten sowie mit Selbstwert gefunden werden. Die Ergebnisse der Regressionsanalyse unterstreichen die prädiktive Güte von Kindheitstrauma und geringem Selbstwert für subklinischen Wahn. Darüber hinaus zeigt die parallele Mediationsanalyse, dass Selbstwert ein signifikanter Mediator für die Beziehung zwischen Kindheitstrauma und subklinischem Wahn ist. Zusammenfassung: Die Ergebnisse tragen zu einem besseren Verständnis der Ätiologie von subklinischem Wahn bei, indem sie den Einfluss von Kindheitstrauma, ToM-Defiziten und geringem Selbstwert in einer gesunden Stichprobe aufzeigen. Da wahnhaftes Erleben zu Einschränkungen im privaten, familiären und beruflichen Kontext führen kann, ist es von großer Bedeutung, präventive Maßnahmen, wie z.B. selbstwertsteigernde Angebote, für die Allgemeinbevölkerung zugänglich zu machen. Diese sollen der weiteren Ausbildung von klinisch relevantem Wahn entgegenwirken. Y1 - 2024 ER - TY - THES A1 - Mutai, Levi Kipchumba T1 - Utilisation of biomass waste as feed for edible insects and how it can be used to close the food economy cycle and contribute to food security in Sub Sahara Africa N2 - The world is facing a critical challenge in meeting the growing demand for food particularly in developing countries in Sub-Saharan Africa where population growth is outpacing food production. It presents a formidable challenge exacerbated by urbanization, shifting consumption patterns and global disruptions like the COVID-19 pandemic. In response, alternative food sources such as edible insects are gaining traction as sustainable solutions. Edible insects offer comparable nutrition to traditional protein sources while requiring minimal resources for farming. However, unsustainable harvesting practices endanger wild insect populations. To counter this, insect farming emerges as a promising strategy, leveraging efficient conversion rates and organic waste utilization. This paper explores how edible insects can integrate into circular food economies, converting organic waste into valuable resources, bolstering food and feed security, and mitigating waste. Specifically, it examines the potential of insects like black soldier fly larvae, yellow mealworms, houseflies, and house crickets in SSA for waste management and sustainable nutrition. The discussion encompasses insect abundance, waste utilization, economic cycles, and environmental benefits. Furthermore, it explores the quality and quantity of available urban organic waste streams, waste-to-insect combinations, and the socioeconomic implications of insect farming, including gender dynamics and consumer acceptance. The review highlights the need for regulatory frameworks to govern the edible insect industry in SSA and emphasizes the potential of insect farming to contribute to food security, environmental conservation, and economic development in the region. Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19595 ER - TY - THES A1 - Decher, Isabelle T1 - Analysing Marketing Strategies of Agroforestry-Grown Walnuts: Lessons for the Lower Rhine Region N2 - Agroforestry (AFS) could help fight climate change by sequestering carbon (Nair et al., 2021). However, few markets accurately reflect the value of agroforestry products, posing a barrier to farmers implementing AFS (Litschel et al., 2023). In addition, while AFS could i.e. help the Lower Rhine Region reduce nitrate pollution, there is little research on AFS in this region. This thesis aims to reduce these barriers to AFS in the Lower Rhine Region by developing a marketing strategy for one promising agroforestry product: walnuts (Juglans regia). To do this, consumer prices of 62 walnut products from 15 stores in the Kleve area were collected over 46 days to gain an insight into the local market. Secondly, expert interviews were conducted with three German walnut producers to assess their marketing strategies. The SIVA framework (Solution, Information, Value, Access) by Dev and Schultz (2005), was used to analyse the transcripts. Then, the results were adapted to the context of the Lower Rhine Region and agroforestry to provide marketing guidelines for producers of AFS-grown walnuts in the Lower Rhine Region. Results show that not only could new walnut producers successfully compete with imported walnuts in the Lower Rhine Region, but that agroforestry could also be a significant asset to their marketing strategy. KW - agroforestry Y1 - 2024 ER - TY - JOUR T1 - 06/2024 Erste Änderungssatzung zur Ordnung zur Feststellung der studiengangsbezogenen künstlerisch-gestalterischen Eignung für den Masterstudiengang Design and Interaction der Fakultät Kommunikation und Umwelt vom 20.03.2024 T3 - Amtliche Bekanntmachungen der Hochschule Rhein-Waal - 2024-06 Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19540 VL - 2024 IS - 06 ER - TY - JOUR T1 - 05/2024 Vierte Änderungssatzung zur Rahmenprüfungsordnung für die Bachelor- und Masterstudiengänge an der Hochschule Rhein-Waal vom 02.04.2024 T3 - Amtliche Bekanntmachungen der Hochschule Rhein-Waal - 2024-05 Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19530 VL - 2024 IS - 05 ER - TY - JOUR T1 - 04/2024 Dritte Änderungssatzung zur Prüfungsordnung für den Bachelorstudiengang Mechanical Engineering B.Sc. der Fakultät Technologie und Bionik an der Hochschule Rhein-Waal vom 09.04.2024 T3 - Amtliche Bekanntmachungen der Hochschule Rhein-Waal - 2024-04 Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19523 VL - 2024 IS - 04 ER - TY - THES A1 - Hötger, Marvin T1 - Evaluation of the potential of a silphie supply chain for fiber production and CO2 binding in East-Westphalia Lip N2 - The present thesis focuses on the potential of the alternative fiber plant Silphie (Silphium perfoliatum) in East Westphalia-Lippe. To assess its potential, three expert interviews were conducted in the beginning with the key stakeholders of a Silphie supply chain. These stakeholders included the fiber producer OutNature, the seed distributor Donau-Silphie, and the CO2 certification company Positerra. Through these interviews, the necessary conditions for establishing a Silphie cultivation region for paper production were determined. Subsequently, the attitudes of local farmers towards cultivation and further use of the plant were surveyed. Additionally, the potential for CO2 sequestration of Silphie was assessed and compared with the opinions of the farmers. The results from the interviews and the survey were used to identify patterns using explorative data analysis and descriptive statistics methods, enabling the prioritization of potential farmers in the future. The evaluation of the methods revealed an interest in cultivation and fiber production under certain conditions. The most important prerequisites include profitability, secured take-off agreements, and the suitability of using the plant as fodder. Consequently, farmers with a larger farm size who cultivate silage maize for biogas production are most willing to grow Silphie. By geographically mapping potential Silphie areas, two preferred catchment areas were identified where the chance for a cultivation region is favorable due to existing infrastructure and farmer interest. Furthermore, a comparison of the required environmental conditions with those present in OWL was conducted and mostly deemed accurate. Based on these findings and the development of further utilization possibilities for Silphie, this thesis serves as a motivation for additional studies aimed at increasing the potential of Silphie in OWL. KW - Silphie KW - fiber plant KW - carbon sequestration KW - agricultural supply chain KW - East Westphalia Lip Y1 - 2024 ER - TY - THES A1 - Ina, Hickmann T1 - Potential of Social media marketing for farm shops N2 - n the age of digital networking, social media has developed into a central tool that is reshaping the communication landscape. This bachelor thesis evaluates the growing importance of social media for farm stores, with the aim of examining the potential of social media for farm stores and identifying effective approaches. Key research questions guide the investigation, addressing aspects such as target groups, design criteria, social media platforms, customer acquisition and distinctions from supermarkets. By employing a mixed-method approach, qualitative expert interviews and a quantitative online survey were conducted to gain insights into the specific criteria for effective social media content and to analyze the characteristics of the Hoffreunde farm store's target audience. The results highlight the paramount role of target audience analysis in formulating a focused social media strategy. Thereby, essential design criteria include the creation of authentic posts that elucidate product origins, fostering trust, a pivotal advantage over large supermarkets. In conclusion, social media has the potential to positively impact farm stores by enhancing visibility and fostering customer loyalty. Y1 - 2024 ER - TY - THES A1 - Christie, Rivani T1 - ESG Reporting as a Sustainability Performance Measurement in Educational Institutions N2 - The concept of Environmental, Social and Governance (ESG) reporting is not a new thing. It initially comes from the concept of non-financial reporting and corporate sustainability reporting. Over time this concept emerged as an essential tool in sustainability performance assessment. This research dives into the dimensions of Environmental, Social and Governance (ESG) reporting as a pivoting tool for evaluating sustainability performance in educational institutions. The study conducts a case study of the campus Hochschule Rhein-Waal sustainability intending to gain insights into the institution's performance concerning sustainability metrics. The research explores the integration of 17 Sustainable Development Goals (SDGs), 10 principles United Nations Global Compact (UNGC), along with the alignment of variables with the Global Reporting Initiative (GRI) into a tailored ESG framework for Higher Education Institutions (HEIs). In addition to the in-depth examination of campus HSRW sustainability with Environmental, Social and Governance (ESG) dimensions, assessments of insights on on-campus areas of improvement about the indicators are highlighted. In summary, this study aimed to provide useful information for academic institutions seeking to enhance their sustainability initiatives as sustainability becomes an essential component of higher education. KW - Sustainability Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19426 ER - TY - THES A1 - May, Clarissa T1 - Efficacy of Traditional Chinese Medical DrugsThe Treatment of Common Illnesses in Comparison with Western medicine N2 - The efficacy of treating common illnesses with traditional Chinese medical drugs has been a subject of growing interest and debate especially when compared to established practices of modern Western medicine. The integration of alternative and traditional medicine practices also gains significance as healthcare systems evolve. This literature review aims to comprehensively assess and compare the effectiveness of traditional Chinese medical drugs with modern Western medial drugs in addressing common illnesses. Through a systematic analysis of reviewed scientific articles, clinical studies, and relevant literature the effectiveness of traditional Chinese medical drugs will be identified and compared to modern Western medical drugs and treatment options in context of the treatment success rates, symptom relief, adverse effects, and patient satisfaction. The study focuses on the herbal based remedies and their traditional therapeutic treatment methods, to illuminate their mechanisms of action and potential therapeutic benefits for a range of common illnesses such as the common cold and flu, digestive disorders, musculoskeletal pain, and skin conditions. Furthermore, the potential synergies between the two practices will be explored, as integrative healthcare becomes increasingly important as a comprehensive approach to patient wellbeing. Through a comprehensive analysis of the available medical literature and clinical data, this paper attempts to address the potential of traditional Chinese medical drugs as an alternative or complementary method to modern Western medicine for various common illnesses. The findings may contribute to informed decision-making by healthcare professionals and patients, offering insights into the strengths and limitations of each approach. Additionally, the research aims to foster a deeper understanding of cross-cultural medical practices and their potential integration into contemporary healthcare systems. KW - Traditional Chinese medicine Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19440 ER - TY - THES A1 - Alshaikh, Badran-Mohammednoor T1 - Medi: A Software System for Improving the Analysis and Interpretation of Medical Tests in Clinical Laboratories. N2 - The rapid increase in patient numbers and the complexity of clinical information, coupled with a significant lack of assistive technologies for routine procedures, has emphasized the urgent need for innovative technological solutions in clinical laboratories. This need is amplified by the existence of over 238 blood tests, highlighting the challenge of managing and interpreting vast amounts of clinical information and data efficiently. The primary objective of this research is to evaluate the effectiveness of Medi, a state-of-the-art software system designed to enhance the workflow of medical routine tasks in the pre-testing steps in clinical laboratories. By focusing on routine hematology, biochemistry, and microbiology tests, the study aims to revolutionize clinical laboratory processes, improve diagnostic accuracy, and enhance patient care. Through an extensive approach regarding specimen collection of blood and the utilization of automated medical devices, this study sheds light on the advantage of Medi to streamline operations within clinical laboratories. The research methodically assesses the impact of Medi on laboratory workflows and patient outcomes, employing a user-centric design to ensure the software meets the practical needs of healthcare professionals. Medi demonstrated significant improvements in laboratory efficiency, with streamlined workflow. Key findings include the standardization of blood specimen collection procedures, limiting blood-tube-selection errors, and a positive impact on laboratory operations. The software facilitated a more cohesive integration of clinical data, contributing to better-informed decision-making and improved patient care. By comparing these outcomes with the current state of clinical diagnostics, Medi's introduction represents a transformative shift in laboratory operations. It not only addresses the pressing need for advanced assistive technologies in the clinical laboratory settings but also sets a new standard in patient care. This research underlines the potential of integrating software solutions with existing laboratory technologies, paving the way for a new era in clinical testing. Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19466 ER - TY - JOUR T1 - 03/2024 Zweite Änderungssatzung zur Ordnung über die Aufbewahrung, Aussonderung, Archivierung und Vernichtung von Dokumenten der Hochschule Rhein-Waal (Aufbewahrungsordnung) vom 01.03.2024 T3 - Amtliche Bekanntmachungen der Hochschule Rhein-Waal - 2024-03 Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19474 VL - 2024 IS - 03 ER - TY - THES A1 - Shuja Ud Din, Aneeba T1 - "SCHOOL FEEDING AND PUBLIC FOOD PROCUREMENT PROGRAMS AS A POLICY INSTRUMENT TO PROMOTE SMALLHOLDER FARMING AND SUSTAINABLE FOOD SYSTEMS – A SYSTEMATIC LITERATURE REVIEW N2 - Family farms and smallholders have been kept out of the market niche due to their competition with larger multinational corporations. Smallholder farmers can enter the food market easily by linking them with school feeding programs. National school feeding programs exist globally. However, food quality is a major factor in the success of these programs in enhancing student nutrition. This offers opportunities for family farms to supply nutritious, local organic produce to regional schools and gain access to the food market in urban areas. Students and farmers can benefit from this integration along with all supply chain contributors. Nevertheless, proper management of these supply chains, programs, and farms is a necessity. In this review, the impacts of local procurement for school meal programs are discussed with data from different national programs. Perspectives of farmers, distributors, school management, students, and parents are discussed to assess the advantages of buying from family farms. Challenges faced in the process of procurement from smallholders and associated risks are also examined. Social actors including producers, distributors, consumers, and government that participated in these studies give their opinions on school feeding programs. The main problems arise from the lack of budget and incentives available to farms and faulty logistics that can affect quality and quantity of school meals. Organizational strategies to promote sustainable supply chains and investment in agriculture policies are practical solutions for these challenges. Y1 - 2024 ER - TY - THES A1 - Zabun, Elif Ezgi T1 - Fermentation of Pyrus communis var. ‘Conference’ with Native Yeasts and Evaluation of Sensory Properties of Produced Pear Distillates N2 - For several millennia, yeasts are involved in the production of alcoholic beverages via the fermentation process. Yeast metabolism is responsible for the aromatic compounds produced during fermentation. Different yeasts create different aromatic compounds, or different concentrations of compounds during fermentation because of the metabolic differences between yeasts. In this bachelor thesis, the effect of utilizing native yeasts on the sensory properties of the produced alcoholic beverage is evaluated. A total of 83 isolates were obtained from the surface, juice, and 7-days-rested juice of fresh pears of Conference variety. Among these isolates, 19 of them were identified as yeast samples. For native yeast sample used in sensory analysis, among known species in the sample, Saccharomyces cerevisiae has the highest relative abundance, followed by Saccharomyces eubayanus. The odor scores were significantly higher for native yeast sample points than the odor scores of LT8 points. The difference between the total sensory analysis scores was not significant. The results showed that the native yeast performed as good as the commercial yeast in terms of sensory properties, with a significantly better odor perception and higher production of ethanol. KW - Sensory analysis KW - Native yeast KW - Saccharomyces spp. KW - Saccharomyces cerevisiae KW - Fruit spirit Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19405 ER - TY - THES A1 - Zimmermann, Laura T1 - Matching im Gesundheitswesen: Eine Analyse relevanter Faktoren zur erfolgreichen Besetzung ärztlicher Positionen im Krankenhaus mit Handlungsempfehlungen N2 - Hintergrund - Seit Jahren steigt in Deutschland der Bedarf an ärztlichem Personal. Krankenhäuser haben immer mehr offene Stellen, Ärzte ein zunehmend großes Jobangebot. Fraglich ist jedoch, wie Ärzte in dieser Fülle an Optionen die für sie ideale Stelle finden können. Ein Stellenportal soll die Brücke zwischen Stellensuche und Stellenbesetzung bilden. Ziel - Das Ziel dieser Masterarbeit ist es, relevante Faktoren und gegenwärtige Herausforderungen im ärztlichen Bewerbungsprozess zu identifizieren. In Anlehnung daran soll entschieden werden, inwiefern ein digitales Stellenportal den bestehenden ärztlichen Stellenmarkt verbessern kann, und welche Alternativen bestehen, um die Effizienz und Qualität im ärztlichen Bewerbungsprozess zu verbessern. Methodik - Um die Forschungsfrage zu beantworten, wurde eine qualitative Studie zu Bewerbungsprozessen im Krankenhaussektor durchgeführt. Im Rahmen dessen wurden Experteninterviews mit Ärzten sowie Personalverantwortlichen in Krankenhäusern geführt. Daneben wurde auch eine quantitative Befragung mit Ärzten durchgeführt, um die qualitativen Aussagen der Interviews mit quantitativen Daten zu untermauern. Ergebnisse - Ärzte bewerben sich überwiegend initiativ oder nutzen ihr persönliches Netzwerk, um eine Neuanstellung zu finden. Dabei sind vor allem das Team und die Lage des Krankenhauses relevant. Krankenhäuser veröffentlichen Stellenausschreibungen überwiegend auf ihrer Webseite und im Deutschen Ärzteblatt. Digitale medizinische Stellenportale werden bislang weder von Ärzten noch von Krankenhäusern in hohem Maße genutzt. In nahezu allen Krankenhäusern sind derzeit ärztliche Stellen unbesetzt, die mit langen Nachbesetzungszeiten verbunden sind. Daher halten Krankenhäuser ihre Anforderungen an Bewerber möglichst gering und beschränken ihre Einstellungsvoraussetzungen häufig auf ausreichende Sprachkenntnisse und eine stellengerechte Qualifikation. Schlussfolgerungen - Der demografische Wandel und der Fachkräftemangel erfordern ein Umdenken seitens der Krankenhäuser im ärztlichen Bewerbungsprozess. Die Entwicklung eines digitalen Stellenportals für ärztliches Personal kann den bestehenden Herausforderungen nur geringfügig entgegenwirken. Vielmehr bedarf es interner Veränderungen und politischer Anpassungen, um wirksame Prozessverbesserungen zu erreichen. KW - Arzt KW - Krankenhaus KW - Bewerbungsprozess KW - Personalberatung KW - Ärztemangel Y1 - 2024 ER - TY - THES A1 - Hoff, Benedikt T1 - Assessing new means of transportation: The role of eVTOLs N2 - This Bachelor Thesis shows, that when it comes to the emerging industry of eVTOLs, literature reveals that there is a lack of empirical data in order to assess future market adoption of the flight services reliably. The research question: “Is there a target group for eVTOLs?” is analyzed theoretically with the Disruptive Innovation Theory (Bower and Christensen, 1995) and particularly the Technology Acceptance Model (“T.A.M.”, Davis, 1989). One-to-one interviews, with potential regular- and premium users of eVTOLs are conducted and strive to verify the Expected results derived from theory, which are then classified as insufficient. The Results show, that there is an interest of potential users in eVTOL flight services. Distinct factors are displayed in the Results section, and while for regular users, trust in the vehicles and safety is important, premium users see time efficiency as a precondition. Overall, in addition to other factors, there is a lack of knowledge on the subject, which applies to both interview groups. KW - eVTOL KW - Transportation KW - Target group KW - Perception KW - Acceptance Y1 - 2024 ER - TY - THES A1 - Rosa, Nathalie T1 - Technische Assistenzsysteme im sonderpädagogischen Kontext - Bedarfe, Anforderungen und Barrieren einer deutschen Förderschule mit dem Schwerpunkt geistige Entwicklung T1 - Assistive Technology Systems in the Special Educational Context - Needs, Requirements, and Barriers of a German Special School for Intellectual Development N2 - Das Ziel dieser Arbeit ist es zu untersuchen, welche Bedarfe, Anforderungen und Barrieren sich für die Implementierung assistiver Technologien in verschiedenen Bereichen des Schulalltags von Schüler*innen mit speziellem Förderbedarf im Bereich geistige Entwicklung und das pädagogische Personal ergeben. Darüber hinaus soll erörtert werden, wie die gewonnenen Erkenntnisse mithilfe von Design-Thinking-Methoden als Grundlage für die zukünftige Entwicklung und Integration der Systeme dienen können. Um diese Fragestellung zu beantworten, wurden im Rahmen einer qualitativen Vorstudie in Kooperation mit der Bönninghardt-Förderschule in Alpen, Nordrhein-Westphalen, eine Hospitation sowie Experteninterviews durchgeführt. Die Interviews wurden anschließend mithilfe der Inhaltsanalyse nach Mayring (2022) analysiert und ausgewertet. Die Ergebnisse der Studie zeigen ungedeckte Bedarfe auf, darunter die Notwendigkeit einer individuellen Lernfortschrittsdokumentation, barrierefreier Navigations- und Orientierungssysteme sowie einer Zentralisierung verschiedener Software, Apps und Funktionen. Die Diskussion über die Anforderungen an Assistenzsysteme betont die Relevanz einer konsequenten Umsetzung der UD(L)-Prinzipien sowie die Bereitstellung von Eigenschaften wie Bild- und Symbolunterstützung, Sprachausgabe, Adaptivität, Interaktivität und Simplizität. Besonders hervorzuheben ist die praktische Anwendbarkeit und Barrierefreiheit von mobilen assistiven Alltagstechnologien, wie beispielsweise Tablets. Sie stellen nicht nur eine wirksame Unterstützung im Schulalltag dar, sondern können auch dazu beitragen Stigmatisierung und Scham sowohl innerhalb als auch außerhalb der Klassengemeinschaften zu reduzieren. Darüber hinaus wurde die Integration künstlicher Intelligenz als entscheidender Faktor in der Entwicklung moderner assistiver Hilfsmittel betrachtet. Für eine optimale Implementierung und Nutzung im schulischen Kontext ist es zudem von besonderer Bedeutung, effiziente Schulungen mit begleitendem Charakter anzubieten. Auf diese Weise kann nicht nur die Akzeptanz, sondern auch der erfolgreiche Einsatz der Technologien gewährleistet werden. N2 - The aim of this study is to examine the needs, requirements, and barriers arising in the implementation of assistive technologies in various areas of everyday school life for students with special educational needs in the field of intellectual development and the educational staff. Furthermore, it will be discussed how the insights gained can serve as a basis for the future development and integration of the systems using design thinking methods. In order to answer these questions, an observation and expert interviews were carried out as part of a qualitative preliminary study in cooperation with the Bönninghardt special school in Alpen, North Rhine-Westphalia. The interviews were subsequently analysed and evaluated using Mayring's content analysis method (2022). The results of the study reveal unmet needs, such as the documentation of individual learning progress, barrier-free navigation and orientation systems, as well as the centralisation of various software, apps, and functions. The discussion on the requirements for assistance systems highlights the relevance of consistent implementation of the UD(L) principles and the provision of features such as image and symbol support, voice output, adaptivity, interactivity, and simplicity. The practical applicability and accessibility of mobile assistive everyday technologies, such as tablets, should be particularly emphasised. They not only provide effective support in everyday school life, but can also help reduce stigmatisation and shame both inside and outside the classroom. In addition, the integration of artificial intelligence was considered a decisive factor in the development of modern assistive devices. For optimal implementation and utilisation in the school context, it is especially important to offer efficient training with an accompanying character. In this way, not only the acceptance but also the successful application of the technologies can be ensured. KW - Assistive technology KW - Special education KW - Intellectual development KW - Content analysis KW - Design thinking Y1 - 2024 ER - TY - THES A1 - Kubin, Nathalie T1 - Universitäres Gesundheitsmanagement an der Rheinischen Friedrich-Wilhelms-Universität Bonn – Eine Netzwerkanalyse des Studentischen Gesundheitsmanagements mit Handlungsempfehlungen N2 - Die Bedeutung der Hochschulen im Gesundheitsbereich ergibt sich unter anderem aus ihrem bildungspolitischen Auftrag. Im Rahmen dessen sind Hochschulen, neben der Wissens- und Kompetenzvermittlung, auch als Sozialisationsraum zu sehen. Mit gesundheitsfördernden Angeboten entwickeln, prägen und festigen die Hochschulen während dieser Zeit gesundheitsbezogene Einstellungen sowohl bei Mitarbeitenden als auch bei Studierenden im Hochschulumfeld. Die vorliegende Masterthesis gibt einen Überblick über die Bedeutung und Relevanz organisatorischer Beziehungen von Netzwerkakteur*innen eines Studentischen Ge-sundheitsmanagements (SGM) am Beispiel des Managements der Rheinischen-Friedrich-Wilhelms-Universität Bonn. Damit ist das Ziel dieser Arbeit zu beantworten, welche Akteur*innen für das SGM an der Universität Bonn eine wesentliche Rolle einnehmen und wie diese mit- oder untereinander kooperieren und kommunizieren. Des Weiteren sollen Schwachstellen in diesem Netzwerk ermittelt und durch Hand-lungsempfehlungen optimiert werden. Um diese Forschungsfragen zu beantworten, wird als methodisches Vorgehen die Netzwerkanalyse genutzt, um die Positionen und Merkmale der Netzwerkak-teur*innen zu visualisieren, zu beschreiben und die organisatorischen Beziehungen zu bestimmen. Im Rahmen dieser Netzwerkanalyse wurden semistrukturierte Inter-views mit ausgewählten Akteur*innen auf persönlicher Ebene durchgeführt. Die Ana-lyse und Darstellung der Ergebnisse erfolgte mit verschiedenen Software-Programmen wie EXCEL, SPSS, UCINET 6 und GEPHI. Die Analyse zeigt, dass sowohl das Kooperations- als auch das Kommunikations-netzwerk eine flache, nicht-hierarchische Struktur aufweisen, die sich in niedrigen Zentralisierungsgraden, kurzen durchschnittlichen Entfernungen mit geringen Stan-dardabweichungen, einem kleinen Durchmesser und dem Nichtvorhandensein von Untergruppen widerspiegelt. Diese Ergebnisse bringen neue Erkenntnisse zu der Debatte, dass eine Netzwerkanalyse an Hochschulen eine neue Form der Struktur-bewertung in der Gesundheitsförderung repräsentieren kann, bei der der Schwer-punkt weniger auf einfachen Zählungen von Programmaktivitäten liegt und vielmehr auf der Dokumentation struktureller Veränderungen. KW - Universitäres Gesundheitsmanagement KW - Studentisches Gesundheitsmanagement KW - Netzwerkanalyse KW - Handlungsempfehlungen im SGM KW - Identifikation von Stakeholdern Y1 - 2024 ER - TY - THES A1 - Swiderska, Julia T1 - The Impact of Inflation on the German Middle Class N2 - This paper investigates the research question whether the lower, middle, and upper class in Germany are heterogeneously impacted by inflation. The low, moderate and high inflation periods in Germany were analyzed in regard to the impact on the three different social classes. The indicator to measure the change was the share of income and cost of living. Moreover, the New Keynesian framework is applied within models. Concludingly it was verified that inflation heterogeneously impacts the lower, middle, and upper class. It was also concluded that high inflation negatively impacts the middle class. KW - Inflation expectations KW - Germany KW - New Keynesian KW - Supply shock KW - Demand shock Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19318 ER - TY - THES A1 - Hoffmann, Julia T1 - „Betriebliches Eingliederungsmanagement – Optimierung des bestehenden Verfahrens zur gleichzeitigen Steigerung der Mitarbeiterakzeptanz und Handlungsempfehlungen für mittelständige Unternehmen“ N2 - Die vorliegende Masterarbeit untersucht den bestehenden Prozess des Betrieblichen Eingliederungsmanagements (BEM) bei der Kao Chemicals GmbH. Das BEM beschreibt ein Instrument, welches Unternehmen dazu dient, frühzeitig auf die Herausforderungen von Langzeiterkrankungen zu reagieren. So sollen das Fachwissen im Betrieb gehalten und die Arbeitsplatzsicherung gewährleistet werden. Der Arbeitgeber ist nach Paragraf 167 SGB IX gesetzlich verpflichtet, dem Arbeitnehmer ein BEM anzubieten und bei dessen Einverständnis, dieses durchzuführen. Die rechtlichen Grundlagen sind im Sozialgesetzbuch IX geregelt. Obwohl hinter dem Prozess eine positive Intention liegt, besteht bei Mitarbeitenden der Anschein, dass das BEM als Vorwand zur krankheitsbedingten Kündigung dient. Dabei liegt das tatsächliche Ziel des Prozesses darin, den Arbeitsplatz ressourcenorientiert zu gestalten und Ausfallzeiten zu minimieren. Mit dieser Arbeit soll ermittelt werden, ob Vorbehalte seitens der Mitarbeitenden gegenüber dem BEM-Prozess bei der Kao Chemicals GmbH bestehen. Zusätzlich wird evaluiert, ob die Mitarbeitenden ausreichend über die Ziele und Absichten des Betrieblichen Eingliederungsmanagements informiert sind. Zur Datenerhebung erfolgen eine Ist-Analyse im Unternehmen, eine Mitarbeiterbefragung und Experteninterviews mit ausgewählten Mitgliedern des Integrationsteams der Kao Chemicals GmbH. Der Fokus liegt auf der Akzeptanz der Mitarbeitenden und der Effektivität des aktuell umgesetzten Prozesses. Es wird untersucht, ob und welche Veränderungen in der Gestaltung des BEM-Ablaufs erfolgen müssen sowie der Frage nachgegangen, ob die gesetzlichen Vorgaben umgesetzt werden. Die rechtlichen Verpflichtungen des BEM sollen nicht nur erfüllt, sondern möglichst gewinnbringend für das Unternehmen eingesetzt werden. Die gewonnenen Ergebnisse sollen dazu beitragen, den aktuellen BEM-Ablauf zu bewerten und Maßnahmen zu dessen Optimierung zu benennen. Die Auswertung der Daten ergab, dass zur zielführenden und nachhaltigen Durchführung des BEM die Evaluation und Qualitätssicherung des Prozesses von Bedeutung sind. Die in der Thesis formulierten Handlungsempfehlungen können als Grundlage zur zielgerichteten Verbesserung des BEM-Prozesses dienen. KW - Betriebliches Eingliederungsmanagement KW - Langzeiterkrankungen KW - Gesundheitsmanagement KW - Gesunderhaltung am Arbeitsplatz Y1 - 2024 ER - TY - THES A1 - Skalicky, Emilia T1 - Vergleich von normativen Verfahren zur Bestimmung des chemischen Sauerstoffbedarfs in unterschiedlichen Matrices N2 - Die vorliegende Arbeit befasst sich mit dem Vergleich normativer Verfahren der Bestimmung des chemischen Sauerstoffbedarfs verschiedener Abwasserproben der Thyssenkrupp Steel Europe AG. Das Ziel der Vergleichsanalyse ist es, die Machbarkeit einer Substitution der nasschemischen Verfahren gemäß DIN 38409-41:1980-12 und DIN 38409-44:1992-05 mit ST-Verfahren hinsichtlich der Übereinstimmung der Messwerte des chemischen Sauerstoffbedarfs zu überprüfen. Grund für die vergleichende Analyse ist der hohe Verbrauch toxischer Reagenzien wie Quecksilbersulfat in Kaliumdichromat und silbersulfathaltige Schwefelsäure bei der Durchführung der nasschemischen Bestimmungen. Durch Darlegung der Arbeitsschritte der Durchführung der nasschemischen Verfahren, bei denen es zu Kontakt der Laborant*innen mit toxischen Reagenzien kommt, konnte das hohe Risiko der Gesundheitsgefährdung im Vergleich zum ST-Test ermittelt werden. Da der Chemikalienverbrauch vergleichend aufgezeigt wurde, konnte die Einsparung absoluter Mengen toxischer Reagenzien bei einer erfolgreichen Substitution mit den ST-Tests errechnet werden. Die statistische Auswertung der Messergebnisse erfolgt in graphischer Darstellung nach Bland-Altman. Für die Beurteilung der Tolerierbarkeit der Abweichungen der nasschemischen Messwerte von denen der ST-Tests erfolgt die Kontextualisierung regulatorischer Vorgaben für den Parameter CSB je nach Matrix. Die Auswertung und Begutachtung der Messergebnisse ließen feststellen, dass die Bestimmung mittels ST-Tests ausreichend übereinstimmende Messwerte generiert und eine Substitution durchführbar ist. N2 - This paper deals with the comparison of normative methods for determining the chemical oxygen demand of various wastewater samples from Thyssenkrupp Steel Europe AG. The aim of the comparative analysis is to check the possibility of substituting the intricate methods according to DIN 38409-41:1980-12 and DIN 38409-44:1992-05 with ST methods regarding the concordance of the measurements of the chemical oxygen demand. Due to the extensive consumption of toxic reagents when executing the analysis in accordance to DIN 38409-41:1980-12 and DIN 38409-44:1992-05, the proposition for this comparison was made. Said toxic reagents such as mercury sulphate in potassium dichromate and sulphuric acid containing silver sulphate contribute to the high risk of health hazards compared to the ST test which is determined by describing the steps of the procedure while performing the intricate procedures in which the laboratory technicians come into contact with toxic reagents. As the chemical consumption is compared, it is possible to calculate the savings in absolute quantities of toxic reagents in case of a successful substitution with the ST tests. The statistical evaluation of the measurement results is presented in graphical form according to Bland-Altman. The regulatory specifications for the COD are contextualized depending on the matrix to assess the tolerability of the deviations measured values of the St tests from those of the analysis according to DIN 38409-41:1980-12 and DIN 38409-44:1992-05. The evaluation and assessment of the measurement results show that the determination using ST-tests generates sufficiently matching values of the COD and that a substitution is doable in the case of the waste waters of Thyssenkrupp Steel Europe AG. Y1 - 2024 ER - TY - THES A1 - Sharma, Neetu T1 - Analyzing Customer Behvior Patterns & Predicting Online Product Return Intentions: A Data Mining Approach N2 - During the past years, it is noticeable that the e-commerce industry has emerged drastically, offering accessibility to a variety of products to the customer where they can buy products from the comfort of their home. However, it is associated with a lot of new challenges for e-commerce businesses, particularly in understanding and managing the customer behavior patterns with the rising online product returns. Since the accessibility of online shopping has risen, assessing the critical factors related to product return and prediction has become a really challenging task for e-commerce vendors. This study also aims to segment the customers based on customer behavior prediction into two categories, i.e., high return risk and low return risk customers, and further develop strategies to reduce the online returns. This study is rather structured into four integral parts, where each part provides the comprehensive analysis. The first aspect involves analyzing and identifying the customer behavior patterns leading to product returns. The second aspect predicts the online product return based on selected features and the third is to segment the customers based on online product return prediction and categorize them into high return risk, and low return risk customers. The final step involves development of strategies to reduce the product return based on the intense analysis conducted. To achieve this meaningful research outcome, data analysis is conducted to understand the customer behavior patterns, and a Random Forest feature selector is used to identify the customer behavior patterns that lead to product return. Based on the identified features, classification models were applied to classify and predict whether the customer is going to return product or not. Furthermore, in these seven classification models such as Logistic Regression, Ada Boost, Decision Tree, Naive Bayes, XG Boost, K-Nearest Neighbors, and Random Forest were implemented and used to compare the performance of the classification models to find out the best performing model. Lastly, the segmentation of customers is carried out based on the online product prediction using Logistic regression with classification threshold method into high return risk and low return risk customer categories. The results obtained help in understanding the customer behavior and reduce the online product return by developing the strategies. This study will eventually help the online businesses in reducing returns which will also enhance the customer satisfaction. KW - Customer behavior KW - Product return KW - Data mining KW - Data analysis KW - Customer segmentation Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19240 ER - TY - THES A1 - Swiderek, Paul T1 - Can golf courses help in conserving and improving local biodiversity – a case study at the Elfrather Mühle, Krefeld T1 - Können Golfanlagen helfen lokale Biodiversität zu schützen und zu verbessern – ein Fallbeispiel am Golf und Country Club Elfrather Mühle, Krefeld N2 - Habitat losses by fragmentation, agriculture, urbanization, and other causes have led to significant declines in biodiversity. Thus, green infrastructures like golf courses have emerged as a potential contributor to biodiversity conservation. Therefore, the research focuses on a golf course in Krefeld, Germany, by examining its role in supporting, conserving, and improving local biodiversity. The objectives include assessing the biotopes and habitats provided by the golf course, investigating the potential of an ecosystem analysis to enhance overall biodiversity, and evaluating the golf course's effectiveness in conserving local species of conservation concern. Through landscape analysis, significant differences between the golf course and surrounding areas were observed. The golf course was ascertained to exhibit a significantly higher biotope value compared to other land use systems except natural ones. Woody biotopes, including forests and tree groups, demonstrated the highest on-course biotope values, while short-kept grass, roughs, ponds, and non-native woody structures were less valuable. Theoretical enrichments of meadow-, pond-, and non-native biotopes as well as their relative size indicated potential for improving biotope value to support biodiversity. Combined enrichments were indicated to be the most effective. Despite the current presence of only a few habitat types, the golf course was found to support local fauna and flora species of conservation concern. Adaptations, such as creating meadow-, riparian-, copse-, and forest habitats, showed promise to further improve biodiversity. The study identified landscape context and prior land use as crucial factors influencing golf course’s value. Overall, the golf course demonstrated potential in providing valuable biotopes, and habitats and supporting local and regional species of conservation concern. The findings suggest that golf courses, particularly in urban and suburban areas, can serve as effective contributors to biodiversity conservation by enhancing landscape connectivity and providing essential habitats. Enrichment strategies, coupled with a focus on specific habitat types, offer practical avenues for improving the conservation status of both local and regional flora and fauna species on golf courses. This research underscores the potential of golf courses as valuable tools in urban biodiversity conservation efforts. N2 - Verluste an Lebensräumen durch Fragmentierung, Landwirtschaft, Urbanisierung und andere Ursachen haben zu erheblichen Rückgängen der Artenvielfalt geführt. Dadurch ist das Interesse an grüne Infrastrukturen wie Golfplätzen, als potenzielle Beitragende zum Artenschutz, gestiegen. Daher wurde auf einer Golfanlage in Krefeld (GCC Elfrather Mühle), NRW, indem dessen Rolle bei der Unterstützung, Bewahrung und Verbesserung der lokalen Artenvielfalt untersucht wurde. Die Ziele der Forschung umfassten die Bewertung der Biotope und Lebensräume des Golfplatzes, die Untersuchung des Potenzials einer Ökosystemanalyse zur Verbesserung der Gesamtartenvielfalt und die Bewertung der Effektivität des Golfplatzes bei Bewahrung lokaler planungsrelevanter Arten von Schutzinteresse. Durch eine Landschaftsanalyse wurden signifikante Unterschiede zwischen dem Golfplatz und den umliegenden Gebieten im Raum Krefeld festgestellt. Der Golfplatz wurde im Vergleich zu anderen Landnutzungssystemen, außer natürlichen Ökosystemen, als wesentlich wertvoller eingestuft. Gehölzbiotope, einschließlich Wälder, Kleingehölzen und Baumgruppen, wiesen die höchsten Biotopwerte auf, während sowohl kurz gemähtes Gras der Fairways und Greens, als auch Roughs, Teiche und nicht-heimische Gehölzstrukturen weniger wertvoll waren. Künftige Entwicklungsmaßnahmen wie Anreicherung von Wiesen- und Teichbiotopen durch spezielles Saatgut, die ausschließliche Pflanzung von heimischen Baumarten sowie eine geringe Vergrößerung der Biotope im Vergleich zur Golffläche haben das Potenzial zur Verbesserung des Biotopwerts zur Unterstützung der Artenvielfalt. Kombinierte Aufwertungen wurden als am effektivsten eingestuft. Trotz der gegenwärtigen Existenz weniger unterschiedlicher Lebensraumtypen wurde festgestellt, dass der Golfplatz lokale Fauna- und Flora-Arten von Schutzinteresse unterstützt. Theoretische Aufwertungen wie die Schaffung von Wiesen-, Ufer-, Gehölz- und Waldlebensräumen sowie das Anbringen von Nisthilfen und die Errichtung von Totholzhaufen, konnten als vielversprechende Maßnahme zur weiteren Verbesserung der Artenvielfalt vorgeschlagen werden. Die Studie identifizierte den Landschaftskontext und die vorherige Landnutzung als entscheidende Faktoren, die die Wertigkeit des Golfplatzes beeinflussen. Insgesamt zeigte der Golfplatz Potenzial zur Bereitstellung wertvoller Biotope und Lebensräume zur Unterstützung und Erhaltung lokaler und sogar regionaler planungsrelevanter Arten von Schutzinteresse. Die Ergebnisse legen nahe, dass Golfplätze, insbesondere in städtischen und suburbanen Gebieten, effektive Beiträge zum Artenschutz leisten können, indem sie die Landschaftsvernetzung verbessern und wichtige Lebensräume bereitstellen. Anreicherungsstrategien, mit dem Fokus auf bestimmte Lebensraumtypen, bieten praktikable Möglichkeiten zur Verbesserung des Schutzstatus von lokalen und regionalen Flora- und Fauna-Arten auf Golfplätzen. Diese Forschung unterstreicht das Potenzial von Golfplätzen als wertvolle Instrumente in den Bemühungen zur städtischen Artenvielfaltserhaltung. KW - golf KW - biodiversity KW - conservation KW - landscape connectivity KW - green infrastructure Y1 - 2024 ER - TY - THES A1 - Larose, Daphné T1 - Investigating plant diversity in former industrial areas converted to green spaces, namely in Zechenpark and Landschaftspark Duisburg-Nord N2 - The initiative to redevelop former industrial sites into green spaces offers a compelling opportunity to restore biodiversity in urban areas. Within the context of Zechenpark, formerly known as the Bergwerk West, in Kamp-Lintfort and the Landschaftspark Duisburg-Nord as case studies, these locations serve as prime examples of reclamation efforts. Both locations now stand as emblematic sites undergoing transformation from industrial ruins to ecologically vibrant zones. This thesis evaluates the diversity of flowering plant species in the two locations: Zechenpark and Landschaftspark, including a comparison of cultural landscape-orientated ecosystems in the traditional parks and the biodiversity growing on more post-industrial structures. The plant species composition of the biodiversity plots of the 2022 Sowing Campaign (Einsaat-Aktion 2022) by the Förderverein Landesgartenschau (LaGa) were analyzed using biodiversity indices, as well as the species composition of Landschaftspark Duisburg-Nord. A statistically significant correlation was observed between the number of individuals of flowering plants and the number of insects in Zechenpark, as determined by Spearman's rank correlation coefficient (Rs = 0.75, p < 0.05). This study offers valuable insights that could contribute to enhancing plant diversity within urban parks, thereby supporting the advancement of sustainable urban development. N2 - Die Initiative zur Umnutzung ehemaliger Industriestandorte in Grünflächen bietet eine vielversprechende Möglichkeit zur Wiederherstellung der biologischen Vielfalt in städtischen Gebieten. Der Zechenpark, ehemals Bergwerk West, in Kamp-Lintfort und der Landschaftspark Duisburg-Nord dienen als Fallbeispiele für die Bemühungen um die Wiederherstellung der biologischen Vielfalt. Beide Standorte sind heute symbolträchtige Orte, die sich im Umwandlungsprozess von Industrieruinen zu ökologisch lebendigen Zonen befinden. In dieser Arbeit wird die Vielfalt der Blütenpflanzenarten an den beiden Standorten untersucht: Zechenpark und Landschaftspark, einschließlich eines Vergleichs der kulturlandschaftlich-orientierten Ökosysteme in den traditionellen Parkanlagen und der biologischen Vielfalt, die auf eher post-industriell geprägten Strukturen wächst. Die Pflanzenartenzusammensetzung der Biodiversitätsflächen der Einsaat-Aktion 2022 des Fördervereins Landesgartenschau (LaGa) wurde mit Hilfe von Biodiversitätsindizes analysiert, ebenso wie die Artenzusammensetzung des Landschaftsparks Duisburg-Nord. Es wurde ein statistisch signifikanter Zusammenhang zwischen der Individuenzahl der Blütenpflanzen und der Anzahl der Insekten im Zechenpark festgestellt, der durch den Spearman's Rangkorrelationskoeffizienten (Rs = 0,75, p < 0,05) bestimmt wurde. Diese Studie liefert wertvolle Erkenntnisse, die dazu beitragen könnten, die Pflanzenvielfalt in städtischen Parks zu erhöhen und damit die nachhaltige Stadtentwicklung voranzutreiben. Y1 - 2024 ER - TY - THES A1 - Antwi, Kwaku Bosiako T1 - Applicable Lean Methods and the Implementation in a Building Refurbishment Project N2 - This study evaluates various lean methodologies, including Value Stream Mapping, Kanban System, 5S Workplace Organization, Kaizen, Ishikawa Diagram, Just-in-Time, Just-in-Sequence, Total Productive Maintenance (TPM), the Last Planner System, Big Room, and Takt Planning and Control. It explores their suitability and effectiveness in the context of a building refurbishment project. The study utilises a qualitative research strategy to comprehensively understand lean construction methods through the perspectives of experienced lean experts. A semi-structured interview was the primary means of collecting data from lean experts, and secondary data was collected using a literature review. The paper comprehensively analyses the obstacles and benefits associated with integrating lean principles in a building refurbishment project. It emphasises the significance of clear communication, education, and prioritising key decisions. Also, allocating more time for critical issues while executing less complex ones promptly. Moreover, the study provides valuable guidance for project managers and construction professionals aiming to apply lean principles effectively. It provides checklists for choosing lean methods, emphasising structured evaluations of project complexity, repeatable areas, team composition, quality planning, and user engagement. In conclusion, this research contributes to advancing lean construction practices, assessing various methodologies and strategies for successful implementation in a building refurbishment project. It is a valuable resource for industry professionals and researchers seeking to optimise construction processes and improve project outcomes by applying lean principles. KW - Lean KW - Lean construction KW - Lean methods KW - Lean logistics KW - Building refurbishment Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19164 ER - TY - THES A1 - Marchenko, Tetiana T1 - Implementation and evaluation of a "Friendship flowerbed" - a novel approach of incorporating interactive friendship data physicalization in gifting experiences N2 - Data physicalizations are physical objects that encode data. The concept comes from data visualization, except for in a physicalization the data is presented as 3D tangible objects. Research shows that physical representation of data and being able to interact with it improve understanding and memorability of data, which supports the embodied cognition thesis, according to which cognition is supported by the body and the physical world and developmental psychology research, suggesting that manipulation of physical objects can promote understanding and learning. Alongside traditional physicalizations of statistical data, there also exist physicalizations of personal data, for example heartrate patterns, DNA data, one’s emotional states during the course of the week, etc. Research shows that such physicalizations, often embodied into everyday objects to promote familiarity and intuitive interaction, stimulate self-reflection as well as social interactions by telling others the stories behind the data. Some researchers thought about using data physicalizations as gifts and created example of such gifting artifacts. However, the design process of these artifacts was not based on the user research; nor were the physicalization gifts evaluated in any way. This is the gap that we are addressing in this master thesis, and the goal of our project was therefore to create and evaluate a personal data physicalization present using the human centered design approach. We started our work by conducting user research: performing interviews and defining the important characteristics of the future physicalisation gift. It was followed by a brainstorming session of possible design solutions and creation of the prototype. The prototype was then tested with users, addressing understandability of the data presented in the physicalisation and subjective perception of the gift. Our documentation of the findings and the research process provides a new step in the research of personal data physicalisations and lays out new topics for future investigations. Y1 - 2023 ER - TY - THES A1 - Pastoors, Ann-Kathrin T1 - Der Effekt kurzkettiger Fettsäuren auf die Darmmikrobiota im Zusammenhang mit Adipositas N2 - Der demographische Wandel führt zu einer stetig höheren Lebenserwartung der Menschen. Ein erhöhtes Alter birgt das Risiko an einer Vielzahl von Krankheiten zu leiden. Darunter fallen insbesondere Herz Kreislauf¬ Erkrankung und Krebserkrankung. Solche Erkrankung fallen ebenfalls unter die Folge und Begleiterkrankung einer Adipositas. Die Adipositas ist eine Stoffwechselerkrankung und beschreibt ein erhöhtes Körpergewicht aufgrund eines erhöhten Körperfettanteils. Die Erkrankung kann beispielsweise durch eine Ernährungsumstellung gelindert werden. Die Ernährung kann unter anderem auch die Darmmikrobiota modulieren. Insbesondere Ballaststoffe und die Fermentationsprodukte der Ballaststoffe, die kurzkettigen Fettsäuren, haben einen Einfluss auf die Darmmikrobiota. Aufgrund dessen werden in dieser Arbeit die Effekte der kurzkettigen Fettsäuren auf die Darmmikrobiota insbesondere im Zusammenhang mit der Erkrankung Adipositas untersucht. Die Ursachen einer Adipositas liegen meist in den Lebensweisen der Patienten. Eine erhöhte Energieaufnahme und geringe Bewegung führen zu einem Anstieg des Körperfettanteils und erhöhen zudem das Risiko für Begleiterkrankung, wie Diabetes mellitus Typ 2, koronaren Herzkrankheiten oder auch Depressionen. Insbesondere die konservativen Behandlungsmöglichkeiten zeigen wenig positive Ergebnisse und die Entwicklung neuer Methoden muss Priorität haben. Die Fermentationsprodukte der Ballaststoffe sind die kurzkettigen Fettsäuren. Diese haben sowohl orexigene als auch anorexigene Eigenschaften. Bei der Ausarbeitung der Ergebnisse wurde deutlich, dass die kurzkettigen Fettsäuren bei der Behandlung der Adipositas von großer Bedeutung sein können. Sie beeinflussen wichtige Rezeptoren, die die appetithemmende Hormone PYY und GLP 1 freisetzen und eine überschüssige Nahrungsaufnahme verhindern. Des Weiteren wirken sich die kurzkettigen Fettsäuren positiv auf die Gluconeogenese aus. Zudem konnten verschiedene Studien über Supplementierungen positive Effekte der kurzkettigen Fettsäuren verzeichnen. Dennoch ergaben sich bei der Bearbeitung der Literatur ebenfalls widersprüchliche Ergebnisse. Um die genauen Effekte der kurzkettigen Fettsäuren lückenfrei zu erschließen sind weitere Forschungen und Experimente zwingend notwendig. Die ersten Untersuchungen zeigen aber, dass eine ballaststoffreiche Ernährung und eine erhöhte Konzentration der kurzkettigen Fettsäuren bei der Behandlung und Prävention eine entscheidende Rolle annehmen. Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19117 ER - TY - THES A1 - Koszyk, Jasmin T1 - Teamvertrauen, Gruppenstimmung und Vertrautheit - Eine Untersuchung der Beziehungen in Projektteams N2 - Ein weit verbreiteter Ansatz zur Leistungssteigerung ist die Teamarbeit, wobei Menschen bei der Zusammenarbeit von verschiedenen Faktoren beeinflusst werden und profitieren können. Da die Zusammenarbeit jedoch vielfältiger und komplexer wird, ist das Ziel der Arbeit, den Zusammenhang von ausgewählten erfolgskritischen Faktoren zu untersuchen, um zur effektiveren Teamgestaltung beizutragen. Dabei kommt die Forschungsfrage auf, in welchem Zusammenhang die Konstrukte Vertrautheit, Teamvertrauen und Gruppenstimmung stehen? Hierfür wurde eine Längsschnittstudie mit Psychologiestudierenden durchgeführt. Die Studierenden füllten dafür zu drei Messzeitpunkten einen Online-Fragebogen aus. Abschließend konnte ein Datensatz von N = 134 verzeichnet werden. Um die Daten auf Gruppenebene aggregieren zu können, wurden der rwg sowie der ICC (1) und ICC (2) berechnet. Die Voraussetzung für die Datenaggregation wurde jedoch nicht erfüllt, weshalb die statistische Datenanalyse auf individueller Ebene durchgeführt werden musste. Mittels der Korrelation für Messwiederholung und der linearen Regression wurden die intra- und interpersonellen Zusammenhänge der Konstrukte untersucht. Vertrautheit steht demnach in einem positiven Zusammenhang mit Vertrauen und der positiven Stimmung. Ebenso wurde festgestellt, dass eine positive Stimmung das Ausmaß an Vertrauen begünstigt. Zudem wurde eine Mediation durchgeführt, um die Bedeutung der positiven Stimmung auf den Zusammenhang von Vertrautheit und Vertrauen herauszuarbeiten. Die Ergebnisse bestätigen die angenommenen Zusammenhänge und zeigen die Bedeutung von Vertrautheit und positiver Stimmung auf. Es werden Praktische und theoretische Implikationen diskutiert. Schlüsselwörter: Gruppenstimmung, Vertrautheit, Teamvertrauen, Längsschnittdesign N2 - A widely used approach to improving performance is teamwork, whereby people can be influenced and benefit from various factors when working together. However, as collaboration becomes more diverse and complex, the aim of the thesis is to investigate the relationship between selected factors critical to success in order to contribute to more effective team composition. This raises the research question of how the constructs of familiarity, team trust and group affective tone are related. Therefore, a longitudinal study was conducted with psychology students. The students completed an online questionnaire at three measurement points. In the end, a data set of N = 134 was recorded. In order to aggregate the data at group level, the rwg and the ICC (1) and ICC (2) were calculated. However, the requirement for data aggregation was not met, which is why the statistical data analysis had to be carried out at individual level. The intra- and interpersonal correlations of the constructs were examined using the correlation for repeated measures and linear regression. Familiarity was found to be positively related to trust and positive affecctive tone. It was also found that a positive affective tone favors the level of trust. In addition, a mediation was carried out to work out the significance of positive affective tone on the relationship between familiarity and trust. The results confirm the assumed realationships and show the importance of familiarity and positive affective tone. Practical and theoretical implications are discussed. Keywords: group affective tone, familiarity, team trust, longitudinal design KW - Längsschnittstudie KW - Teamforschung Y1 - 2024 ER - TY - THES A1 - Kalyanam, Thanmai Sai T1 - The Environmental Impact of Urban Agricultural Technologies Determined Using Life Cycle Assessment Method – A Systematic Review N2 - Urban Agriculture (UA) is identified as a sustainable solution to address urban food security challenges compounded by the exponential increase in urban population. Moreover, UA largely mitigates the negative impacts associated with conventional agriculture systems such as soil degradation, high resource usage, crop sensitivity towards climate change, and high fertilizer usage. UA is often complimented for its significant potential for producing higher yield nevertheless, for extensive use of UA, an in-depth understand- ing of its environmental impacts is required. For any UA methodology, environmental performance acts as a promising factor in promoting agriculture sustainability. This study performs critical analyses of available literature on UA techniques using Life Cycle Assessment (LCA). LCA provides a comprehensive understanding of UA’s environmental footprint across different stages of its life cycle. LCA facilitates the quantification of eco- logical impacts associated with various UA approaches, including vertical farming, roof- top farming, hydroponics, aquaponics, and aeroponics. This study utilizes a systematic review methodology, incorporating the PRISMA model, to conduct a comprehensive data collection process aimed at identifying the LCA of diverse UA methods and their associated impacts. The review addresses the following questions: How does LCA help in quantifying the environmental impacts of UA? What is the environmental performance of different UA techniques? The findings demonstrated that nearly every form of UA exhibited a notable advantage in yield, and efficiency in water usage and land usage. Specifically, aeroponics stands out for its superior performance in yield and water usage efficiency, albeit with elevated energy demands. Hydroponics and aquaponics showcase advantages in reduced water usage and fertilizer requirements. Vertical farms, due to their structural and Controlled Environment (CE) prerequisites, present as energy-intensive systems with higher Greenhouse Gas (GHG) emissions. In contrast, rooftop farms, making use of under-utilised urban spaces, emerge as a balanced system with moderate energy consumption and GHG emissions. The environmental impact of UA techniques varies based on factors such as structure, operational components, crop selection, and the integration of innovative technologies, resulting in diverse outcomes when compared to conventional soil-based farms. This review recommended an extensive LCA of UA techniques, innovation to existing methodologies, urban reforms, and increased awareness about UA. Y1 - 2024 ER - TY - THES A1 - Gehrmann, Bastian T1 - The Impact of Planted Green Facades on Biodiversity and Tem perature in the immediate Surroundings of urban Buildings N2 - People and nature are affected by climate change in different ways. The effects of diminishing green spaces, increasing sealed spaces, and higher summer temperatures are particularly noticeable in built-up and urban areas. The constant use of land and development means that insect habitats, which are essential to a functioning ecosystem, are being lost. But this development is not only problematic for insects: increased sealing also increases the potential risk of the heat island effect, which poses a threat to human health. One possible solution for providing habitat and food for insects in urban areas could be green façade systems. These could partially restore ecosystem services lost to development and have a positive effect on ambient temperature through shading of the building and evaporation from the plants. In order to measure this effect of façade greening on the environment, in particular on insect diversity and insect population, this work measured the number of insects using two different counting methods over several days on two external façades, one with façade greening and one without. In addition, to determine the effect of the green façade on the ambient temperature, the temperature was measured at different parts of the façades at both measurement locations. The result of the work is that the façade with plants has a significantly higher insect biodiversity and insect density than the façade without plants. Temperatures are cooler, in most cases, on a green façade. However, they are not particularly significant and show large fluctuations. The paper also outlines a possible way of analysing demand and developing a possible sales concept. KW - Green Facades KW - Biodiversity Y1 - 2023 ER - TY - THES A1 - Fleuren, Anja T1 - Eine Analyse über den Early Warning Score im Krankenhaus zur Verbesserung der Patientensicherheit mit Handlungsempfehlungen KW - Early Warning Score KW - Krankenhaus KW - Patientensicherheit KW - Normalstation KW - Innerklinische Notfälle Y1 - 2024 ER - TY - JOUR T1 - 2/2024 Dreizehnte Änderungssatzung zur Beitragsordnung der Studierendenschaft der Hochschule Rhein-Waal vom 29.01.2024 T3 - Amtliche Bekanntmachungen der Hochschule Rhein-Waal - 2024-02 Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-19036 VL - 2024 IS - 02 ER - TY - THES A1 - Okolie, Somtoo Dominic T1 - The Use of Pig insulin and Grafts in the treatment of Human Diabetes N2 - Biological resources are entities of natural origin with sources from either plants or animals that render a broad number of services to mankind. Purified pig insulin, pancreas, islet, and beta cells are biological resources synthesized, extracted, and isolated from pigs to provide medical services like treating human diabetes. The observed methodology was obtained by systematically reviewing and comparing other similar scientific studies to determine the challenges and risks associated with using pig grafts (islet, pancreas, beta cells) for the treatment of type 1 diabetes (T1D), the optimal pig age for extracting graft for treatment of diabetes, differences between human and pig insulin, and the clinical trials and adoption pig insulin and graft therapies for type 1 diabetes treatment. Xenotransplantation of pig grafts has successfully restored normoglycemia in a Type 1 diabetes patient for about 9.5 years, thus potentially being an alternative therapy to human islet allotransplantation. However, the clinical adoption of using pig grafts for diabetes treatment is hindered by the unavailability of T1D volunteers to be used for clinical trials because of risks like zoonosis, loss of body weight, immunosuppression, and death of the transplanted pig implant. Xenotransplantation of pig grafts to T1D can be clinically accepted through advanced practices like Genetic modifications of the pig, encapsulating the pig grafts before transplantation, and co-transplantation of the pig grafts with Mesenchymal Stem Cell (MSCs) and/or Sertoli cells (SCs). The clinical adoption of pig grafts for T1D treatment will mitigate the problem of limited islet/pancreas donor sources encountered in allotransplantation, hence more research and studies are needed for this milestone to be accomplished. Y1 - 2023 ER - TY - THES A1 - Guttkowski, Lena T1 - Enrichment of Bacillus anthracis using phage-derived recombinant fusion proteins N2 - Bacillus anthracis is a rod-shaped, Gram-positive, spore-forming bacterium causing the lethal zoonotic disease anthrax. This disease mainly infects herbivores, but many mammals can be hosts as well, including humans. Multiple cases in history are known, in which human infection resulted either from digestion or handling of contaminated animal products, from industry accidents or bioterrorism attacks. The endospores of B. anthracis are persistent to harsh environmental conditions and can survive in soil for decades, before heavy rains or grazing animals can reemerge the spores again. In appropriate medium, like blood, the spores germinate again to the vegetative cell form. B. anthracis belongs to the “Bacillus cereus group” which shares high genetic similarity, with cases where the virulence plasmids of B. anthracis, which are responsible for the toxin and capsule production, are even shared with other members of this group. Species-specific testing therefore often poses a challenge, because sophisticated equipment and financial investments are needed for a correct diagnosis. Because of appearing new infection cases, a species-specific, rapid and inexpensive method for the detection of B. anthracis is needed. Apart from the gold standard of detection of B. anthracis via PCR, receptor-binding protein (RBP) based detection methods are in research for a few years. Bacteriophages (phages) represent the most prevalent biological entities on earth and are viruses targeting bacterial cells. Brown and Cherry isolated a phage named gamma (γ), demonstrating high efficiency in infecting encapsulated bacilli. Notably, the γ phage exhibited sensitivity across nearly all variants of B. anthracis, while members of the B. cereus sensu lato group displayed resistance. The specificity of phages is attributed to their RBPs, which recognize distinct structures on the host cell, inducing the initial step of phage infection. One of these RBPs specific for B. anthracis is BA4079Δ1-127. This work aims to produce two recombinant fusion proteins, with two different cellulose-binding domains (CBDs) which were internally linked to the fluorescent reporter protein superfolder green fluorescent protein (sfGFP) and coupled to BA4079Δ1-127. The protein tools would enable binding to B. anthracis and at the same time would allow sequestration to cellulose materials. Because of the fluorescence protein, the sample can be observed by fluorescence microscopy and cells or cellulose bound to the fusion proteins would exhibit green fluorescence. This experimental approach could lead to a new low-cost enrichment tool for B. anthracis cells using the fusions proteins containing CBDs, RBPs and fluorescence proteins. The fusion proteins were tested with various cultures of B. anthracis cells, grown under different conditions, as well as different cellulose materials including cotton wool in a syringe, cotton wool fibers, cellulose filters and microcrystalline cellulose. Binding tests showed, that the fusion proteins were not able to connect B. anthracis cells with diverse cellulose materials in a way that cells could be enriched from media. However, both fusion proteins successfully bound to both, cultured B. anthracis cells and different cellulose materials individually. KW - Bacillus anthracis KW - Fusion proteins KW - Bacteriophages Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-18899 ER - TY - THES A1 - Thapa, Sajana T1 - Assessing the Impact of Pyrolysis Biochar Derived from Sewage Sludge on Growth Responses and Plant Compatibility across Various Plant Species N2 - Sewage sludge, a byproduct of municipal wastewater treatment, poses challenges in disposal due to its increasing global production. The pyrolysis process is explored to address this issue, converting sewage sludge into biochar with advantages such as eliminating pathogens, reducing odors, and stabilizing organic carbon. This research underscores the environmental benefits of utilizing biochar as a soil amendment, given its porous structure, carbon and nutrient retention capacity, and potential to enhance plant development and soil quality. By evaluating the impact of pyrolysis biochar from sewage sludge on plant growth and compatibility, the research aims to provide valuable insights for sustainable agricultural practices and waste management strategies. Pot trials were conducted in the university greenhouse, incorporating findings from a range of prior studies as a guiding framework. Diverse plant species were selected for experimentation, aiming to assess both plant compatibility and the influence of pyrolyzed biochar. This research investigates the contextual influence of sewage sludge biochar on water-holding capacity (WHC) across different soil types. Contrasting effects were observed, with silty clay loam experiencing decreased WHC and sandy loam exhibiting an increase, highlighting the soil- specific impact of biochar on water retention. Gaseous toxicity and phytotoxicity tests confirmed the absence of harmful gases, challenging previous findings. Plant compatibility tests underscored species-specific responses, emphasizing the need for tailored approaches when utilizing biochar as a soil amendment. Germination tests supported the idea that biochar does not adversely affect seed germination. Root analysis revealed biochar-induced fine root proliferation, suggesting enhanced nutrient availability for plants. In the context of Rhizobium inoculation, common beans in the biochar medium have exhibited smaller dimensions, influenced by the interaction between biochar and Rhizobium inoculation rates. This study provides valuable insights into the multifaceted impacts of sewage sludge biochar in diverse agricultural contexts. Y1 - 2024 ER - TY - THES A1 - Almeida Pereira, Bruna T1 - Effectiveness of neurotrim Method as Rehabilitation Method for Individuals with Chronical Ankle Instability N2 - This study investigates the efficacy of the neurotrim method as a rehabilitation strategy for individuals affected by Chronic Ankle Instability (CAI). The research aims to determine the effectiveness of this method in improving balance and proprioception in individuals with CAI. Assessments of biometric parameters, including age, height, weight, and BMI, were conducted alongside the neurotrim-based rehabilitation program to explore their potential correlations with balance outcomes. The findings reveal a consistent and positive correlation between the neurotrim method and enhanced balance performance in individuals with CAI. Height consistently emerged as a factor influencing balance across assessments, while the relationships of age, weight, and BMI with balance outcomes displayed fluctuations over assessment phases. The outcomes of the study underscore the potential of the neurotrim method as a promising rehabilitation intervention for individuals with CAI, emphasizing the need for tailored strategies to enhance balance in this population. Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-18853 ER - TY - THES A1 - Hülshoff, Kristina T1 - Visualisierung klimafreundlicher Baumaßnahmen am Beispiel der Stadt Xanten N2 - Due to anthropogenic climate change, cities need to be restructured. New measures are necessary to achieve climate neutral cities. With the assistance of 3D Programs, concepts against flooding, heat and in favor of mobility transition can be visualized. This thesis will emphasize why it is so relevant to take actions against climate change and will investigate which measures are helpful, especially in cities. In connection, the ideation of measures for the City of Xanten will be presented. Subsequently, the process of chosen Design Style and concepts for various Xanten locations will be explained and displayed. These elaborated concepts can be seen as a thought provoking impulse for at least Xanten, which may be realized in the future. KW - 3D Visualisierung KW - Klimawandel KW - Stadtplanung KW - Xanten Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-18847 ER - TY - THES A1 - Awasthi, Sudarshan T1 - Pepper ChatGPT System as a Study Programme Guide for Students N2 - This thesis centers on enhancing the humanoid Pepper robot with Artificial Intelligence-driven information delivery capabilities in an educational setting using Large Language Model at student service centers. In this work, Pepper was connected to GPT-Engine to act as a voice assistant robot. With the help of GPT-Engine Pepper can answer questions about the University and its study programmes. The enhancement involves a client-server architecture, where the client-side application enables students to interact with Pepper via speech, and the server-side, equipped with AI functionalities, processes these interactions and generates appropriate responses. This setup significantly augments Pepper's capabilities, allowing for more accurate and efficient information delivery. An experiment was conducted with nine student participants of Hochschule-Rhein Waal, where they asked questions about the University and study Programmes to inform themselves about the University and Study Programmes. During the interaction, they evaluated the robot's clarity of communication, accuracy of responses, and overall user experience. The findings indicate that while the AI enhancements generally improved Pepper's ability to communicate and provide information, areas such as voice recognition and response accuracy require further improvement. This research contributes to the field of human-robot interaction by illustrating a practical approach to augmenting existing service robots with AI capabilities. It underscores the importance of advanced AI integration in enhancing the functionality of service robots in educational environments. The study provides valuable insights into the broader application of AI-enhanced robots in the Information Guide role, highlighting the ongoing need for technological advancements in AI integration and humanrobot interaction. KW - Pepper robot KW - AI integration KW - Human-robot interaction KW - Educational technology KW - Client server KW - ChatGPT KW - Large Language Models Y1 - 2024 ER - TY - THES A1 - Shrestha, Bigyan T1 - Documentation and Further Development of a Digital Factory Simulation Game N2 - The fusion of digital technologies in manufacturing and production initiates the progress in Industry 4.0. This paper explores the literature review on Industry 4.0 and Internet of Things (IoT). The literature review explores the historical background and components of Industry 4.0. It also highlights the elements of IoT and the concept of a digital factory. In the context of digitalization, the integration of a digital factory simulation game is relevant. The game provides a comprehensive view of manufacturing and production in a lab environment. This paper addresses the gameplay concept, comparing the manual and digitalized phases. It highlights how the game reflects a virtual factory environment by integrating with IoT devices. Several industries implement technological elements in today’s dynamic industrial landscape for smooth and efficient productivity. By presenting an overview of the digital elements used in the game and the industries, this paper assists in comparing the industrial elements to the game. The framework involves an analysis of technologies commonly used in the industries to establish connectivity of the game. Thus, the primary concern of this paper comprises the evaluation of the industrial elements of the game through a feasibility study to design a roadmap for further development of the game. Supplementary materials and supporting documents can be found in the appendices of the thesis, expanding the approach of the game. Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-18825 ER - TY - THES A1 - Acharya, Bhuwan T1 - VISUALIZATION OF FLOOD SCENARIOS IN GERMANY IN 2021 AND FORECASTING FLOOD USING MACHINE-LEARNING MODELS N2 - Floods are the most common, devastating, and frequently occurring natural disaster nowadays. Because of climate change, Europe is expected to see an even higher number of floods in the coming decade. As floods cannot be prevented, understanding the pattern and causes and being able to forecast could significantly reduce the losses during the flood. In July 2021, Germany faced a catastrophic flood, taking more than 180 people’s lives and causing around 40 billion euros of economic loss. To study the flooded region and the region at high risk, the Flood event 2021 has been visualized in this research. The Flood map has been created using a sentinel-1 image. In the visualization, floods in the Rhine River and Arh River can be seen, and the change in the pattern of flood from 12th July to 16th July has also been observed. Different models exist that try to predict floods and warn as early as possible. Since Machine learning is popular nowadays in every sector, ML models have been implemented in this study to forecast the flood. The SARIMA, Random Forest, and LSTM have been implemented using historical data to predict the flood. The Random Forest model performed better than the remaining two models. The Isolation Forest model has also been implemented to classify the data into Flood and No Flood. This model performs well with the Flood classes but struggles in capturing the No Flood class. KW - Flood KW - Machine learning KW - sentinel KW - visualization Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-18780 ER -