@misc{Syed2025, type = {Master Thesis}, author = {Syed, Zaid Saleem}, title = {Development of an ML-based multivariate anomaly detection model for beehive monitoring using sensor and environmental data.}, school = {Hochschule Rhein-Waal}, year = {2025}, abstract = {Anomaly detection is an important aspect of beehive monitoring, enabling beekeepers to take timely action and preventing economic losses caused by the decline of the bee population. Most existing beehive monitoring systems lack machine learning (ML) capabilities for anomaly detection and rely on threshold-based methods or expensive, complex designs. This thesis utilized the DigiBee prototype, a cost- effective monitoring system, to develop an ML-based anomaly detection model using Isolation Forest. Data on temperature, humidity, sound, vibration, and weight from four active beehives was collected between May 1, 2024, and July 25, 2024, alongside environmental data—temperature, relative humidity, and precipitation—from nearby meteorological stations. Exploratory data analysis revealed several limitations: uniform outputs from vibration sensors, calibration errors in weight sensors, and multiple gaps during the data collection period. Correlation analysis indicated a limited influence of external weather variables on internal beehive conditions, while internal sensor parameters displayed stronger correlations with each other. Five models were developed, using either beehive data alone or a combination of beehive and weather data. Results showed that beehive-specific models achieved higher accuracy in detecting localized anomalies, whereas models combining data from multiple beehives generalized better but underrepresented hive-specific issues. Models incorporating weather parameters, especially precipitation, introduced noise and unnecessary dimensions, which, when excluded, improved the model's prediction by focusing on hive-specific patterns and ensuring anomaly detection remained contextually relevant.}, language = {en} } @masterthesis{Biffo2025, type = {Bachelor Thesis}, author = {Biffo, Fabio}, title = {Laser Modification of Thin Polymer Coatings}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-21410}, school = {Hochschule Rhein-Waal}, pages = {71}, year = {2025}, abstract = {Traditional manufacturing techniques are well-established for processing polyimides, such as Kapton®. This thesis presents a novel approach to producing polyimide and graphite using low-cost, commercially available equipment. Employing a 450 nm laser to both imidize and pyrolyze a polyamide precursor enables the flexibility of on-site manufacturing, even at a microscale, without relying on conventional fabrication techniques. The proposed method offers significant advantages, including cost and time efficiency, design flexibility, and biocompatibility, paving the way for innovative micromechanical and biomedical sensing applications. Moreover, this technique would enable the integration of fully additive manufacturing methods for Kapton® production, which currently relies primarily on subtractive manufacturing technologies. The thesis outlines the fabrication process, highlights optimal laser settings, and demonstrates the practicality of this technique by developing a water detector sensor manufactured entirely from the precursor liquid using the described method.}, language = {en} } @misc{Bhattarai, type = {Master Thesis}, author = {Bhattarai, Anish}, title = {Digitizing the Bait Lamina Method: Facilitating Autonomous Learning and Data Processing in Ecological Research}, school = {Hochschule Rhein-Waal}, abstract = {In recent years, digital tools in soil science have evolved to modernize and streamline traditional approaches by fostering greater learning engagement and enhancing accessibility. The primary goal of this research is to create an application that intends to facilitate autonomous learning while streamlining data processing, visualization, and reporting for the Bait Lamina Method (BLM). Advanced technologies such as React.js, Tailwind CSS, Vite.js, and several Node.js modules were used to implement essential functionalities. Moreover, to ensure smooth and scalable app delivery, Docker was employed. Furthermore, thorough usability testing was carried out with students from both the school and university to create a sturdy app that satisfies the needs and standards of users. This research utilized a mixed-methods approach to evaluate the app's overall usability, emphasizing efficiency, learnability, dependability, and overall satisfaction. Quantitative analysis included phi coefficient correlation, chi-square testing, and multiple ordinary least squares (OLS) regression to measure overall usability and user satisfaction. Meanwhile, qualitative approaches such as theme and sentiment analysis were used to get insight into user experiences, preferences, difficulties, and ideas for improvement. The study demonstrated that understanding the method is a key driver influencing student satisfaction. Therefore, the Bait Lamina App (BLA) immensely facilitated autonomous learning while speeding up data processing, visualization, and administration for the BLM. However, a few small faults and student comments were integrated into the BLA, which improved its use and satisfaction.}, language = {en} } @misc{OPUS4-2137, title = {02/2025 Zugangspr{\"u}fungsordnung f{\"u}r Bildungsausl{\"a}nderinnen und -ausl{\"a}nder f{\"u}r den Studiengang International Business Administration an der Hochschule Rhein-Waal vom 08.11.2024}, volume = {2025}, number = {02}, organization = {Hochschule Rhein-Waal}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-21374}, pages = {6}, language = {de} } @misc{OPUS4-2130, title = {01/2025 Dritte {\"A}nderungssatzung zur Fakult{\"a}tsordnung der Fakult{\"a}t Gesellschaft und {\"O}konomie der Hochschule Rhein-Waal vom 22.10.2024}, volume = {2025}, number = {01}, organization = {Hochschule Rhein-Waal}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-21309}, pages = {3}, language = {de} } @masterthesis{Schink, type = {Bachelor Thesis}, author = {Schink, Lukas}, title = {Pepper: Der halbautonome, humanoide Service-Roboter}, school = {Hochschule Rhein-Waal}, abstract = {Die vorliegende Arbeit untersucht die Integration großer Sprachmodelle in die Steuerung humanoider Roboter, am Beispiel der Anbindung von ChatGPT an den Service-Roboter Pepper. Motivation der Arbeit ist die Frage, wie moderne Sprachmodelle die Interaktionsf{\"a}higkeit {\"a}lterer Roboterplattformen verbessern k{\"o}nnen, sodass Roboter wie Pepper trotz ihres Alters und begrenzter physischer F{\"a}higkeiten in sozialen und bildungsbezogenen Anwendungen relevant bleiben. Ziel der Forschung ist es, Peppers Kommunikations- und Interaktionsm{\"o}glichkeiten durch die Kombination seiner bestehenden und m{\"o}glichen Funktionen mit den Sprachverarbeitungsf{\"a}higkeiten von ChatGPT zu erweitern. Hierzu wurde ein System entwickelt, das kontextbasierte Codes (Actioncodes) verwendet, die es dem Sprachmodell erm{\"o}glichen, Peppers Verhalten dynamisch zu steuern und flexibel auf Situationen zu reagieren. Dazu geh{\"o}rt die technische Anbindung von ChatGPT an die QiSDK, die Implementierung spezifischer Actioncodes sowie die Definition einer Pers{\"o}nlichkeit und kontextuellen Wissensbasis f{\"u}r den Roboter. Das System wurde auf Basis vorangegangener Feldversuche im Labor getestet und evaluiert. Die Ergebnisse zeigen, dass die Integration von ChatGPT Peppers Interaktionsf{\"a}higkeit signifikant verbessert, indem die Kommunikation nat{\"u}rlicher und die Reaktionen des Roboters flexibler werden. Diese Arbeit demonstriert, wie moderne Sprachmodelle dazu beitragen k{\"o}nnen, {\"a}ltere Robotersysteme zu modernisieren und ihre Einsatzm{\"o}glichkeiten erheblich zu erweitern.}, language = {de} } @misc{Mandal, type = {Master Thesis}, author = {Mandal, Prashant}, title = {Comparative Lifecycle Assessment (LCA) Of Tomato Production in Spain and Northern Germany}, school = {Hochschule Rhein-Waal}, abstract = {The environmental impact of year-round greenhouse vegetable production, particularly in high latitude region such as the Emsland district in Lower Saxony, Germany, has raised concerns. It has latitude 52,362324 and longitude 7,269548 with temperature from 10°C to 25 in summer and temperature ranges from -1°C to 7°C in winter. In this context, two gardens with different climatic conditions, represented by the gardeners DE from Germany and ES from Spain, were considered. The latter is located at latitude 41,39467 and longitude 2,157998, with summer temperatures ranging from 20 to 30°C and winter temperatures from 10 to 15°C. Greenhouse vegetable production requires significant energy inputs for heating and lighting, particularly during the winter months. However, the environmental implications of using renewable energy sources like hydroelectricity and the effects of other production strategies on the environment have not been adequately investigated. To address this knowledge gap, a life cycle assessment (LCA) of greenhouse tomato production for year-round production in 2022 has been conducted, including processes from seedling planting in a pre-build greenhouse structure to distribution at two locations: the ES Gardner in Spain and the DE Gardner in Germany. The study used the OpenLCA software and followed the ReCipe 2016 Mid-Point (H) impact assessment methodology. Our analysis revealed that, across the two main production seasons, the highest global warming potential (GW) was observed during year-round production in Spain. The following aspects were discovered to have a significant influence on the environmental impact: Packaging material, transportation, heating systems, electricity, land usage, and irrigation methods. Overall, it was determined that year-round production in Germany had the least detrimental environmental impact among the examined production types. The use of packaging material, electricity for heating the greenhouse and transportation was the primary contributor to most of the impact categories. Conversely, the application of fertilizers and manures during extended seasonal and year-round production had a lower environmental impact.}, language = {en} } @masterthesis{Ratnayake, type = {Bachelor Thesis}, author = {Ratnayake, Hasiru}, title = {A Systematic Review of Rapamycin- Mediated Fetal Hemoglobin Induction via the mTOR Pathway}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-21155}, school = {Hochschule Rhein-Waal}, pages = {55}, abstract = {mTOR inhibitor rapamycin has been observed to induce fetal hemoglobin in patients of β-hemoglobinopathies, a group of disorders in which mutations in the gene responsible β-globin chains results in reduced or malformed RBC production, leading to anemia. The induction of fetal hemoglobin bypasses these mutations, as they are found on the gene responsible for adult hemoglobin. Following birth, the fetal hemoglobin gene is silenced, and the adult gene is activated through a process known as the hemoglobin switch. Rapamycin treatment reverses this hemoglobin switch but the mechanism by which it does so is currently unknown. Rapamycin functions through its inhibition of mTORC1, a protein complex responsible for nutrient- and growth factor-dependent cell growth and proliferation. This literature review seeks to collate existing information on the mTORC1 signalling pathway and the hemoglobin switch, allowing for a specific mechanism by which rapamycin induces fetal hemoglobin through its inhibition of mTORC1 to be hypothesized. Following the literature search, 55 studies on the mTORC1 pathway and 31 studies on the hemoglobin switch were summarized. Using the information gained from this, three hypotheses were put forward for the possible induction mechanism, out of which the primary hypothesis is based on the hemoglobin switching factor KLF1. This was based on the observation that the knockdown of Raptor, a crucial component of mTORC1, in mice caused a decreased expression of KLF1. As KLF1 is an essential component of the hemoglobin switch, this provides a direct link between the inhibition of mTORC1 and the reversal of the hemoglobin switch. Additionally, the efficiency of rapamycin in comparison to other methods of fetal hemoglobin was discussed, including newer generations of mTOR inhibitors developed using rapamycin as a foundation. Finally, possible avenues of research to confirm the validity of the proposed hypotheses and to address points of ignorance within each topic were discussed.}, language = {en} } @masterthesis{Trauernicht, type = {Bachelor Thesis}, author = {Trauernicht, Anne}, title = {Entwicklung von Handlungsans{\"a}tzen einer adressatenorientierten F{\"o}rderung der psychischen Gesundheit jugendlicher Sch{\"u}lerinnen und Sch{\"u}ler in Ganztagsschulen}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-21120}, school = {Hochschule Rhein-Waal}, pages = {76}, abstract = {Nicht nur die Covid-19-Pandemie wirkte auf die allgemeine Verschlechterung der psychischen Gesundheit von Jugendlichen in Deutschland. Das Erleben vielseitiger Entwicklungen in der Jugendzeit machen diese Lebensphase zu einer psychisch vulnerablen Zeit. Gleichzeitig haben Schulen einen großen Einfluss auf das Leben der Sch{\"u}lerinnen und Sch{\"u}ler und bilden f{\"u}r die psychische Gesundheitsf{\"o}rderung einen zentralen Wirkungsort. Besonders Ganztagsschulen zeichnen sich durch erweiterte Betreuungszeiten und Ressourcen aus. W{\"u}nsche und Interessen der Sch{\"u}lerinnen und Sch{\"u}ler werden sowohl in der Gesundheitsf{\"o}rderung als auch in der Ganztagsschule selten erhoben und einbezogen (vgl. BMFSFJ, 2017). Die vorliegende Arbeit geht der Frage nach, welche adressatenorientierten Handlungsans{\"a}tze aus der aktuellen Forschungslage zur F{\"o}rderung der psychischen Gesundheit im Setting Schule f{\"u}r jugendliche Sch{\"u}lerinnen und Sch{\"u}ler an Ganztagsschulen abgeleitet werden k{\"o}nnen. Ziel ist die Ableitung adressatenorientierter, auf Ganztagsschulen ausgerichteter Handlungsans{\"a}tze. Zur Beantwortung der Forschungsfrage wurde mithilfe einer systematischen Literaturrecherche der aktuelle Forschungsstand der psychischen Gesundheitsf{\"o}rderung im Setting Schule erhoben. Auf Grundlage der analysierten Ergebnisse wurden adressatenorientierte Handlungsans{\"a}tze diskutiert. Die Ergebnisse zeigen den Bedarf der Edukation von Lehrkr{\"a}ften in der Fr{\"u}herkennung psychischer Krankheiten, die zusammen mit ganztagsschulischen Unterst{\"u}tzungsnetzwerken das Potenzial tragen, Sch{\"u}lerinnen und Sch{\"u}ler fr{\"u}hzeitig zu unterst{\"u}tzen. Des Weiteren hebt sich unter Orientierung am Adressaten die Dringlichkeit einer geschlechtersensibleren psychischen Gesundheitsf{\"o}rderung ab. Des Weiteren werden fehlende entwicklungsorientierte und partizipative Formen der psychischen Gesundheitsf{\"o}rderung festgestellt. Ganztagsschulen, die sich als Teil der Lebenswelt ihrer Sch{\"u}lerinnen und Sch{\"u}ler verstehen, k{\"o}nnen schulische und psychische Faktoren st{\"a}rken. Die erarbeiteten Handlungsans{\"a}tze heben Diskrepanzen und Dringlichkeiten hervor und erg{\"a}nzen die bestehende psychische Gesundheitsf{\"o}rderung um eine jugendorientierte Perspektive.}, language = {de} } @misc{OPUS4-2107, title = {20/2024 Ordnung {\"u}ber die Auslaufplanung f{\"u}r den Bachelorstudiengang „Mechatronic Systems Engineering B.Sc." der Fakult{\"a}t Technologie \& Bionik an der Hochschule Rhein-Waal vom 17.10.2024}, volume = {2024}, number = {20}, organization = {Hochschule Rhein-Waal}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-21075}, pages = {5}, language = {de} } @misc{OPUS4-2106, title = {19/2024 Ordnung {\"u}ber die Auslaufplanung f{\"u}r den Bachelorstudiengang „Mechanical Engineering B.Sc." der Fakult{\"a}t Technologie \& Bionik an der Hochschule Rhein-Waal vom 17.10.2024}, volume = {2024}, number = {19}, organization = {Hochschule Rhein-Waal}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-21062}, pages = {5}, language = {de} } @misc{OPUS4-2105, title = {18/2024 Ordnung {\"u}ber die Auslaufplanung f{\"u}r den Bachelorstudiengang „Industrial Engineering B.Sc." der Fakult{\"a}t Technologie \& Bionik an der Hochschule Rhein-Waal vom 17.10.2024}, volume = {2024}, number = {18}, organization = {Hochschule Rhein-Waal}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-21057}, pages = {5}, language = {de} } @misc{OPUS4-2103, title = {17/2024 Ordnung {\"u}ber die Auslaufplanung f{\"u}r den Bachelorstudiengang „Electrical and Electronics Engineering B.Sc." der Fakult{\"a}t Technologie \& Bionik an der Hochschule Rhein-Waal vom 17.10.2024}, volume = {2024}, number = {17}, organization = {Hochschule Rhein-Waal}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-21030}, pages = {5}, language = {de} } @masterthesis{Mueller, type = {Bachelor Thesis}, author = {M{\"u}ller, Melanie}, title = {Auswirkung von Tensiden auf die Genexpression und die Zusammensetzung der mikrobiellen Gemeinschaft von Abflussbiofilmen}, school = {Hochschule Rhein-Waal}, abstract = {In dieser Arbeit wurde eine Methodik zur Untersuchung von intl1-Pr{\"a}valenz von Abflussbiofilmen entwickelt sowie eine m{\"o}gliche Verschiebung der mikrobiellen Gemeinschaft bei Inkubation mit unterschiedlichen Tensidgruppen analysiert. Die Ergebnisse zeigten inhomogene Reaktionen f{\"u}nf ausgew{\"a}hlter Biofilmproben, welche aus Siphons von Handwaschbecken eines Krankenhauses sowie der Hochschule Rhein-Waal entnommen wurden. Die Proben wurden jeweils zu einer Biofilmsuspension verarbeitet, um diese anschließenden den Tensiden Dodecylsulfat Natriumsalz (anionisch), Cocamidopropyl Betain (zwitterionisch), Fettalkohol- Ethoxylat (nicht-ionisch) und Benzalkoniumchlorid (kationisch) auszusetzten. Das ex situ-Modell wurde mit drei Konzentrationen eines Tensids angelegt, sodass die mittlere Konzentration der CMC entspricht und jeweils eine Konzentration oberhalb sowie unterhalb dessen liegt. Ein N{\"a}hrmedienwechsel fand alle 48 bis 72 Stunden statt, wobei zeitnah unterschiedliche ph{\"a}notypische Entwicklung, wie die Synthese von Biofilmen mit Pilzgeflechten sichtbar wurde. Die geringste Biofilmentwicklung wurde bei dem kationischen Tensid Benzalkoniumchlorid ersichtlich, sodass f{\"u}r die Ergebnisanalyse drei Biofilme ausgew{\"a}hlt wurden und die h{\"o}chste Konzentration 3 nicht ausgewertet wurde. Die relative Integron-Pr{\"a}valenz der DNA und RNA wurde anhand der qPCR und mithilfe von Standards der 16S und intl1 ermittelt. Die Auswertung der Ergebnisse zeigte keinen signifikanten Zusammenhang zwischen der relativen Pr{\"a}valenz und dem eingesetzten Tensid, dennoch konnte ein Trend abgeleitet werden, sodass der Einsatz von Benzalkoniumchlorid den h{\"o}chsten Einfluss auf das Vorhandensein, sowie die Expression des intl1-Gens erzielte. Auch das anionische Tensid, Dodecylsulfat Natriumsalz zeigte eine Zunahme der relativen intl1- Pr{\"a}valenz, welche bei Cocamidopropyl Betain und Fettalkohol-Ethoxylat verh{\"a}ltnism{\"a}ßig gering ausfiel. Zur Beurteilung einer m{\"o}glichen Verschiebung der mikrobiellen Zusammensetzung wurde mittels der HRMA und unter Einsatz von bakteriellen ITS-Primern eine Schmelzkurvenanalyse durchgef{\"u}hrt, welche deutliche Shifts bei Benzalkoniumchlorid zeigte. Zus{\"a}tzlich wurde die Berechnung der euklidischen Distanz zwischen der Wachstums-Kontrolle und der jeweiligen Biofilmprobe durchgef{\"u}hrt. Ein m{\"o}glicher Zusammenhang zwischen der normalisierten intl1-Pr{\"a}valenz der DNA und der euklidischen Distanz f{\"u}hrte erneut zu einem nicht signifikanten Ergebnis. Ebenfalls wiesen die Resultate der Mittelwerte hohe Standardabweichungen auf, was auf eine hohe Variabilit{\"a}t der Biofilme zur{\"u}ckzuf{\"u}hren ist und den Einfluss von Tensiden individuell gestaltet.}, language = {de} } @misc{Teresa, type = {Master Thesis}, author = {Teresa, Z{\"o}bel}, title = {Die Rolle individueller Copingstrategien und Resilienz f{\"u}r die mentale Gesundheit im Kontext der Wahrnehmung der Klimakrise: Eine systematische Untersuchung empirischer Studien}, school = {Hochschule Rhein-Waal}, abstract = {Hintergrund: Der Klimawandel ist ein globales Problem, welches bereits weltweit sp{\"u}rbar ist und sich zuk{\"u}nftig weiter versch{\"a}rfen wird. Neben den damit einhergehenden physischen Auswirkungen f{\"u}r die Gesundheit, steigt auch die Relevanz mentaler Belastungen. Nicht nur das Erleben von Naturkatastrophen und extremen Wetterereignissen, sondern auch die Wahrnehmungen der Ver{\"a}nderungen wirkt bedrohlich und kann eine mentale Belastung f{\"u}r Menschen darstellen. Ziel der Masterarbeit war es zu untersuchen, welche Rolle individuelle Copingstrategien und Resilienz f{\"u}r die mentale Gesundheit und das Wohlbefinden im Kontext der Wahrnehmung der Klimakrise haben. Wesentlich war daher die Identifikation potenzieller Schutz- und Risikofaktoren sowie die Untersuchung von Copingstrategien im Kontext des Klimawandels, um gezielte Empfehlungen zur St{\"a}rkung der Resilienz und Verbesserung des psychischen Wohlbefindens abzuleiten. Methoden: Eine systematische Literaturrecherche wurde durchgef{\"u}hrt, um relevante, empirische Studien zu identifizieren. Das methodische Vorgehen orientierte sich an den Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Die Suche erfolgte auf den Datenbanken Web of Science, ScienceDirect, PubPsych, PubMed und PsycArticles. Zur Bewertung der methodischen Qualit{\"a}t und Bewertung des Verzerrungspotenzials der eingeschlossenen Studien, wurden die Critical Appraisal Checklisten des Joanna Briggs Instituts (JBI) verwendet. Die Ergebnisse der Studien wurden anhand zweier Evidenztabellen nach Studiendesign und Studienergebnissen synthetisiert und narrativ beschrieben. Ergebnisse: Insgesamt erf{\"u}llten 19 von 1.676 gepr{\"u}ften Studien die Einschlusskriterien. Die Studien untersuchten unterschiedliche Copingstrategien und -stile, wie Verhaltensweisen des umweltfreundlichen Handelns sowie problem-, emotions- und bedeutungsorientierte Bew{\"a}ltigungsstrategien. Verschiedene Faktoren wurden ber{\"u}cksichtigt, darunter emotionale Reaktionen, psychologische, soziale und kognitive Aspekte sowie soziodemografische Eigenschaften. Zun{\"a}chst wurde untersucht, wie Copingstrategien in Verbindung mit den einbezogenen Faktoren stehen. Darauf aufbauend wurde analysiert, wie diese Copingstrategien die mentale Gesundheit beeinflussen und ob die Faktoren im Kontext des Klimawandels als Schutz- oder Risikofaktoren wirken. Beispielsweise zeigten leichte Auspr{\"a}gungen der Angst vor dem Klimawandel sowohl aktivierende Effekte, in Form von umweltfreundlichen Verhaltensweisen, als auch die Neigung zu mentalen Beeintr{\"a}chtigungen, bei starker Auspr{\"a}gung. Sorgen zeigten im Studienvergleich gemischte Auswirkungen, indem sie teilweise problemorientiertes Coping beg{\"u}nstigten, teilweise jedoch auch belastend wirkten. Wut zeigte vorwiegend aktivierende Effekte und weniger Beeintr{\"a}chtigungen f{\"u}r die mentale Gesundheit. Naturverbundenheit, Geschlecht und Alter standen oftmals mit problemorientiertem Coping in Verbindung, jedoch gleichzeitig mit einer erh{\"o}hten Anf{\"a}lligkeit f{\"u}r mentale Beeintr{\"a}chtigung. Daneben wurden zwei Studien identifiziert, die unterschiedliche Maßnahmen zur Reduktion der mentalen Belastungen durch den Klimawandel evaluierten und bei relevanten Parametern der mentalen Gesundheit positive Ergebnisse erzielten. Schlussfolgerung: Es besteht verst{\"a}rkter Forschungsbedarf, um die mentalen Auswirkungen im Kontext der Wahrnehmung des Klimawandels besser zu verstehen und wirksame Maßnahmen zur F{\"o}rderung der mentalen Gesundheit zu entwickeln. Ein einheitliches Verst{\"a}ndnis der untersuchten Konstrukte ist dabei entscheidend, um eine Vergleichbarkeit zwischen den Studien zu gew{\"a}hrleisten und gesicherte Erkenntnisse zu gewinnen. Damit kann die Entwicklung zielgerichteter Maßnahmen und die F{\"o}rderung von pers{\"o}nlichen Ressourcen sowie adaptives Coping im Zusammenhang mit der Klimakrise unterst{\"u}tzt werden.}, language = {de} } @misc{OPUS4-2097, title = {16/2024 Vierzehnte {\"A}nderungssatzung zur Beitragsordnung der Studierendenschaft der Hochschule Rhein-Waal vom 30.10.2024}, volume = {2024}, number = {16}, organization = {Hochschule Rhein-Waal}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20975}, pages = {3}, language = {de} } @masterthesis{Sturza, type = {Bachelor Thesis}, author = {Sturza, Loredana}, title = {Selection of Global Standardization Samples for Optical Emission Spectrometry from Practical and Materials Science Perspectives}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20939}, school = {Hochschule Rhein-Waal}, abstract = {The focus of this thesis is to address the task of alloy selection for Optical Emission Spectrometry (OES) applications. The main goal is to develop standardised samples for SPECTRO OES devices that can be utilised during routine analysis in automatic processes. The selection criteria include machinability, signal performance, and homogeneity. To achieve these goals, a set of practical tests were carried out. The initial research involves using the existing SPECTRO sample library to identify suitable alloys for standardised production in large batches. In the end, a database is suggested with existing alloys as possible candidates for future production. The chosen alloy must generate signals within specified wavelength ranges and exhibit machinability for post-analysis processing. The thesis introduces a unique approach to assessing machinability using chip analysis, emphasising the role of chip characteristics in understanding the material's suitability for machining. The study found that the E/3 sample, especially among samples with zirconium, demonstrated exceptional machinability. Moreover, the research delves into the importance of power consumption measurements during milling as an informative parameter for machining requirements. The study examines the chemical composition necessary to produce consistent and robust signals across the spectrum, with a particular focus on elements like zirconium, nickel, iron, copper, titanium, and manganese, but also phase diagrams to understand the homogeneity of aluminium alloying elements. Sample 518X905 is highlighted for its role in enhancing emission lines. In conclusion, the thesis proposes an alloy composition that blends aluminium with various alloying elements to meet specific research requirements. Copper, iron, zinc, silicon, nickel, zirconium, chromium, and vanadium provide flexibility for crafting tailored samples. Existing primary alloying elements, including those with copper, zinc, and silicon, can be considered. However, zirconium with a concentration of 0.6\% to 1\% is pivotal in the proposed alloy recipe.}, language = {en} } @masterthesis{Weinrich, type = {Bachelor Thesis}, author = {Weinrich, Johannes}, title = {Effects of the Agricultural Minimum Wage Increase on the Special Crop Sector in Germany}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20925}, school = {Hochschule Rhein-Waal}, pages = {58}, abstract = {This thesis explores the impact of rising labor costs, driven by minimum wage increases, on Germany's specialty crop sector, with a focus on strawberries and asparagus. The thesis investigates how these cost pressures affect farm operations, particularly in light of labor shortages and substantial wage expenses. Combining market data, government statistics, and industry reports, the research highlights significant trends in production, cultivation practices, and market dynamics between 2015 and 2023. Through analysis of data, this work finds a notable reduction in the number of farms and cultivated areas for both strawberries and asparagus, alongside fluctuations in yield and production volumes. The results suggest that while mechanization offers some relief from rising labor costs, its adoption is limited by high initial investment requirements, technical complexity, and the need for crop-specific solutions. This effect is moderated by significant regional differences, and farm size. Overall, this study contributes to the understanding of how minimum wage policies affect the German specialty crop sector, providing insights that are crucial for stakeholders aiming to navigate the evolving agricultural landscape.}, language = {en} } @masterthesis{RandeniKoralalage, type = {Bachelor Thesis}, author = {Randeni Koralalage, Lochana Chathuranatha}, title = {Implementation of the Brain Imaging Data Structure (BIDS) with EEG Data for Machine Learning-Based applications in Schizophrenia patients}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20887}, school = {Hochschule Rhein-Waal}, pages = {66}, abstract = {Schizophrenia, a complex mental disorder characterized by delusions, hallucinations, and cognitive impairments, remains challenging to diagnose accurately due to the reliance on subjective clinical evaluations. This study aimed to develop a robust machine learning model for classifying schizophrenia patients using neurophysiological markers derived from Electroencephalography (EEG) data. The work explored multiple machine-learning architectures, including traditional Support Vector Machines (SVM) and deep learning models such as Long Short-Term Memory (LSTM) and CNN-LSTM hybrids. EEG data was collected from schizophrenia patients and healthy controls, with preprocessing conducted using the Brain Imaging Data Structure (BIDS) framework to ensure consistency and standardization. Given the varying quality and structure of the EEG recordings—such as missing channels and differing recording lengths—the study employed several preprocessing techniques, including channel interpolation, zero-padding, and limiting data to the first three minutes of resting-state recordings for standardization. Data imbalance was addressed through the application of the Synthetic Minority Over-sampling Technique (SMOTE) to ensure balanced representation of both schizophrenia and control groups during model training. The findings showed that the SVM model reached an accuracy of 88.8\% in patient classification, whereas the LSTM model, after addressing data imbalances through SMOTE, achieved an improved classification accuracy of 99.3\%. However, challenges arose when attempting to predict schizophrenia severity levels using MMN task data and a CNN-LSTM hybrid model. Despite efforts to standardize the number of epochs across subjects, the model achieved a more modest accuracy of 66.7\%. This lower accuracy was largely attributed to the limited and unbalanced dataset, as some subjects had fewer than the target number of epochs. Further challenges included BIDS conversion issues due to discrepancies in file naming conventions between .sdt and .set files, which required considerable time to resolve. The successful creation of a tailored BIDS conversion script ensured the data could be standardized and used effectively for analysis. In conclusion, while the classification models achieved high accuracy, particularly the LSTM-based approach, predicting schizophrenia severity levels remains a challenge due to the limitations of the available dataset. Future research will focus on gathering larger and more balanced datasets, refining preprocessing methods, and optimizing model architectures to improve prediction accuracy. Ultimately, the goal is to apply these models in clinical settings to facilitate early diagnosis and intervention, providing timely medical care to schizophrenia patients before their symptoms worsen.}, language = {en} } @masterthesis{Ruesel, type = {Bachelor Thesis}, author = {R{\"u}sel, Henri}, title = {Prototypische Entwicklung eines Geoinformationssystems zur Koordination von Flugger{\"a}ten der Polizei Nordrhein-Westfalen w{\"a}hrend der Fußball-Europameisterschaft 2024}, school = {Hochschule Rhein-Waal}, abstract = {This bachelor thesis explores the prototypical development of a Geographic Information Sys-tem (GIS) for coordinating police aerial devices in North Rhine-Westphalia during the UEFA Euro 2024. The need for a coordination system stems from the rising utilization of drones and helicopters by law enforcement and the concurrent challenge of coordinating them securely. The primary aim of this project is to create an IT driven system that enhances the coordination of both manned and unmanned aerial vehicles. Through an analysis of requirements and exa-mination of technological and legal frameworks a GIS was crafted to cater to the specific requi-rements of NRW police. The prototype implementation enabled real-time visualization and monitoring of aerial devices, potentially improving security and efficiency at large-scale events. The outcomes and understandings from the trial phase of this system offer insights into the capabilities and constraints of the technology for deployment and future exploration, in this domain.}, language = {de} } @misc{Mashaba, type = {Master Thesis}, author = {Mashaba, Ismat Jahan}, title = {Comparative Analysis of Waste Management Challenges and Strategies: A Case Study of Dhaka, Bangladesh, and Beijing.}, school = {Hochschule Rhein-Waal}, abstract = {The paper emphasizes the importance of effective waste management for sustainable development, highlighting the challenges faced by Dhaka, mainly due to inadequate infrastructure, poor public awareness, and insufficient governmental support. The rapid urbanization and population growth in Dhaka exacerbate these issues, leading to severe environmental and public health risks. The study compares the waste management systems of Dhaka and Beijing. A survey was conducted to understand the attitude and awareness of the residents of Dhaka, and secondary data was considered to provide an overview of the existing waste management policies and practices of both Dhaka and Beijing. The findings of the paper outline several recommendations for improving waste management in Dhaka. However, the study also identifies several challenges, including inadequate infrastructure, insufficient governmental support and so on. In summary, the research highlights the significance of efficient waste management systems in metropolitan regions, especially in developing nations, and promotes a comprehensive strategy to tackle the difficulties encountered by cities such as Dhaka.}, language = {en} } @masterthesis{Nacke, type = {Bachelor Thesis}, author = {Nacke, Marius}, title = {K{\"u}nstliche Intelligenz zur Vorhersage von Kreditentscheidungen}, school = {Hochschule Rhein-Waal}, abstract = {Seit der Versch{\"a}rfung der Kreditrichtlinien im Jahr 2022 ist es zunehmend schwieriger geworden, einen Kredit in Deutschland und im europ{\"a}ischen Raum zu erhalten. Das Interesse an Krediten ist zuletzt ungeachtet dieser Erschwernisse angestiegen. Vergleichs- und Vermittlungsportale f{\"u}r Kredite k{\"o}nnen potenziellen Darlehensnehmern aktuell nur in begrenztem Maße dabei unterst{\"u}tzen, eine genehmigte Kreditanfrage zu erhalten. Die Vorhersage der Kreditentscheidungen von Banken kann als Basis f{\"u}r weitere Methoden fungieren, die Kreditnehmern helfen k{\"o}nnen, die Wahrscheinlichkeit einer Genehmigung zu erh{\"o}hen. In der vorliegenden Arbeit wird daher untersucht, welche Verfahren des Machine-Learning am ehesten f{\"u}r die Vorhersage von Kreditentscheidungen geeignet sind. Dazu werden die Daten der Yareto GmbH, eines Vergleichs- und Vermittlungsportals f{\"u}r Fahrzeugkredite, f{\"u}r das Training sowohl eines Logistischen-Regressions- und XGBoost-Modells als auch eines Multilayer-Perceptrons verwendet. Das XGBoost-Modell erreicht dabei die h{\"o}chste Accuracy und Precision mit 73,6\\% bzw. 76,1\\% bei einer Trainingszeit von lediglich 55 Minuten. Das Multilayer Perceptron kann eine {\"a}hnlich hohe Accuracy erreichen, bedarf allerdings mehr als zehn Stunden f{\"u}r das Training. Demnach ist XGBoost am ehesten von den drei untersuchten Verfahren zur Vorhersage von Kreditentscheidungen geeignet.}, language = {de} } @misc{Bongers, type = {Master Thesis}, author = {Bongers, Lena}, title = {{\"U}ber die Gesundheitskompetenz als individuelle Ressource f{\"u}r das Gesundheitsverhalten und Stresserleben von Akteurinnen und Akteuren in Gesundheitsfachberufen in Deutschland mit Handlungsempfehlung}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20848}, school = {Hochschule Rhein-Waal}, pages = {193}, abstract = {Einleitung: Gesundheitskompetentes Personal bildet die Grundlage f{\"u}r gesundheitskompetente Ge-sundheitsorganisationen. Im Rahmen der Vorbildfunktion wird erwartet, dass Berufst{\"a}tige der Ge-sundheitsprofessionen eine hohe Gesundheitskompetenz aufweisen und sich entsprechend gesund-heitsf{\"o}rderlich verhalten. In einer zunehmend belastenden Arbeitswelt sind individuelle Ressourcen entscheidend f{\"u}r die Gesundheit und das Stresserleben des Gesundheitsfachpersonals. In der vorlie-genden Arbeit soll untersucht werden, inwieweit die Faktoren „gesundheitsbezogenes Verhalten" und „Stresserleben" durch das Level der Gesundheitskompetenz in Gesundheitsfachberufen beeinflusst wird. Da das berufliche Belastungsspektrum von Physiotherapeut:innen und Pflegekr{\"a}ften teilweise vergleichbar ist, wird in dieser Masterarbeit im Sinne einer quasi-explorativen Querschnittsstudie ein Vergleich zwischen diesen Gesundheitsfachberufen gezogen. Methodik: Zur Erhebung der Daten wurde vom 12.02.2024 bis 11.03.2024 eine quantitative Online-Umfrage durchgef{\"u}hrt. Dazu wurden aktuell t{\"a}tige und examinierte Pflegekr{\"a}fte und Physiotherapeut:innen ab 18 Jahren mittels Schnee-ballverfahren rekrutiert. Zur Erhebung der Gesundheitskompetenz wurde der Fragebogen HLS19-Q12-DE verwendet, sowie einzelne Skalen des COPSOQ und dem SOC-L9 zur Erfassung des Stres-serlebens und des Koh{\"a}renzgef{\"u}hls. Dar{\"u}ber hinaus wurden einzelne Items aus der GEDA-Studie 2019 des Robert Koch- Instituts zur Erfassung des gesundheitsbezogenen Verhaltens einbezogen. Zur Datenauswertung wurden uni- und bivariate deskriptive Analysen vorgenommen, aber keine R{\"u}ck-schl{\"u}sse auf die Grundgesamtheit gezogen. Ergebnisse: Im Rahmen der Fragebogenerhebung konnte eine Stichprobengr{\"o}ße von n = 124 erzielt werden, welche sich in 62,1 \% Physiotherapeut:innen und 37,9 \% Pflegekr{\"a}fte teilt. Es zeigt sich eine durchschnittlich problematische Gesundheitskompetenz der Stichprobe und dichotomisiert weisen 68,6 \% der Befragten eine geringe Gesundheitskompetenz auf, wobei mehr Pflegekr{\"a}fte eine hohe Gesundheitskompetenz aufweisen als die Physiothera-peut:innen. Das Stresserleben beider Berufsgruppen ist vergleichbar und insgesamt setzt die Mehrzahl aller Befragten mindestens drei von f{\"u}nf gesundheitsf{\"o}rderlichen Verhaltensweisen um (mind. T{\"a}gli-cher Obst- und Gem{\"u}severzehr, aktuelles Nichtrauchen, risikoarmer Alkoholkonsum, K{\"o}rpergewicht im Normalbereich, k{\"o}rperliche Bet{\"a}tigung nach WHO-Empfehlung), wobei dies mehr Physiothera-peut:innen als Pflegekr{\"a}ften gelingt. Im Rahmen der bivariaten Analyse zeigten sich in beiden Berufs-gruppen nur schwache Korrelationen zwischen der Gesundheitskompetenz und den Variablen des Stresserlebens sowie des gesundheitsbezogenen Verhaltens, wobei Letzteres lediglich das Bewe-gungsverhalten und den Alkoholkonsum umfasst. Schlussfolgerung: In der hier vorliegenden Arbeit kann die Gesundheitskompetenz als personale- bzw. als Handlungsressource interpretiert werden, die problemzentrierte Bew{\"a}ltigungsans{\"a}tze unterst{\"u}tzt und als prototypische Selbststeuerungsaufgabe das Stresserleben und das gesundheitsbezogene Verhalten der Fachkr{\"a}fte in geringer Weise beeinflusst. Das reine Wissen {\"u}ber gesundheitsbezogene Aspekte reicht jedoch nicht aus, um das Stresserleben und das Gesundheitsverhalten der Fachkr{\"a}fte zu verbessern. An dieser Stelle kann die Gesundheits-kompetenz somit nicht als alleinige unabh{\"a}ngige Variable identifiziert werden, sondern stellt lediglich den Teil eines Ganzen aller Einflussfaktoren auf die abh{\"a}ngigen Variablen dieser Arbeit dar. Die Er-gebnisse legen nahe, dass zuk{\"u}nftige Bem{\"u}hungen zur Steigerung der Gesundheitskompetenz der Fachkr{\"a}fte erforderlich sind und dabei sowohl die individuelle, organisatorische und politische Ebene ber{\"u}cksichtigt werden sollte.}, language = {de} } @misc{OPUS4-2086, title = {15/2024 F{\"u}nfte {\"A}nderungssatzung zur Pr{\"u}fungsordnung f{\"u}r den Bachelorstudiengang Mechanical Engineering B.Sc. der Fakult{\"a}t Technologie und Bionik an der Hochschule Rhein-Waal vom 02.08.2024}, volume = {2024}, number = {15}, organization = {Hochschule Rhein-Waal}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20862}, pages = {3}, language = {de} } @misc{vanLeuvenLucassenDicksetal., author = {van Leuven, Nicole and Lucassen, Ralf and Dicks, Anna and Braß, Patrick and Lipski, Andr{\´e} and Bockm{\"u}hl, Dirk}, title = {Does antibiotic use contribute to biofilm resistance in sink drains? A case study from four German hospital wards.}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20820}, abstract = {As biofilms are known to harbour (multi-)resistant species, their presence in health settings must be considered critical. Although there is evidence that bacteria spread from drains to the outside, there is still a lack of research data focusing on drain biofilms from hospitals. We sampled biofilms from various wards of Helios Hospital Krefeld (Germany), where comprehensive antibiotic consumption data were available. Biofilms were analysed by cell counting, isolation of relevant bacterial groups and genetic and phenotypical resistance parameters. Data were correlated with the prescribed antibiotics of the respective ward. Furthermore, an ex-situ biofilm model was employed to investigate the influence of sub-inhibitory antibiotics on the bacterial community and the prevalence of class 1 integrons. Our results show, that every ward harboured medically relevant bacterial species. While no significant differences were found in cell counts, the median prevalence of the resistance marker gene intI1 correlated with the amount of prescribed antibiotics. In contrast, phenotypical resistances showed no similar tendency. In addition, melting curve analysis data and changes in intI1 prevalence show that the composition of the bacterial community shifted depending on the biofilm and antibiotic. Based on our results we conclude, that sub-inhibitory concentrations of antibiotics have no general effect on biofilms in terms of bacterial community shift and occurrence of antibiotic resistant species. The effect depends on the initial composition of the bacterial community, the antibiotic used and the intrinsic bacterial resistance e.g. prevalence of class 1 integrons.}, language = {en} } @misc{OPUS4-2080, title = {14/2024 Zweite {\"A}nderungssatzung zur Pr{\"u}fungsordnung f{\"u}r den Masterstudiengang Biological Resources an der Fakult{\"a}t Life Sciences vom 04.09.2024}, volume = {2024}, number = {14}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20800}, pages = {3}, language = {de} } @masterthesis{Paradis, type = {Bachelor Thesis}, author = {Paradis, Fabian}, title = {Innovation and Digital Transformation: Reshaping the Future of Food Retail}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20748}, school = {Hochschule Rhein-Waal}, pages = {61}, abstract = {The aim of this bachelor thesis is to find out how the future of food retail will be influenced by digital technologies and innovations in this market. For that purpose the following research question ‚How do new technologies and innovations impact grocery retailers' will be answered. In order to do that a qualitative literature review has been performed. The majority of the literature is relatively new and deals with topics such as digitalization methods, business models, and innovative technologies. In addition to that, examples of companies that already apply such technologies have been presented in this thesis. The qualitative study shows, that companies operating in the field of grocery retailing are deeply affected by digital changes. The pressure from e-commerce startups as well as the adaption to customer needs forces participants in the market to innovate faster in digital technologies with large monetary investments. The results demonstrate that companies have to plan the implementation of digital technologies strategically in order to stay competitive in the market. On this basis, it is recommended, that companies make use of theoretical approaches to plan and outline future investments.}, language = {en} } @masterthesis{Celik, type = {Bachelor Thesis}, author = {Celik, Sizel}, title = {Virtual Influencers in Brand Management: A comparison between human and artificial Influencers}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20735}, school = {Hochschule Rhein-Waal}, pages = {53}, abstract = {This Bachelor Thesis examines the impact of Virtual Influencers (VIs) on Brand Management by comparing them with Human Influencers (HIs) in various dimensions. The research question is: "What impact can Virtual Influencers have on Brand Management?". The aim is to identify the advantages and disadvantages of VIs from a Brand Management perspective. The research utilizes a literature review and comparison to evaluate key dimensions such as authenticity, credibility, engagement, diversity, flexibility and Marketing effectiveness. The results show that VIs offer significant benefits, including flexibility, adaptability, diversity, high engagement rates, increased brand awareness and cost-effectiveness. VIs can operate without time, location or health restrictions and can be precisely customized to the brand strategy. They also achieve higher engagement rates, especially with sponsored posts, and can effectively increase brand visibility and recognition. However, the study also identifies several challenges associated with VIs. These include authenticity issues, as VIs do not have real-life experiences, making it difficult to develop real emotional connections with followers. In addition, VIs may struggle to gain credibility when promoting physical products and may not be as effective at generating purchase intention as HIs. The reduced parasocial interactions and initial distrust of users are also notable drawbacks. Overall, the research concludes that while VIs offer great potential for Brand Management and bring unique benefits, brands need to carefully consider the challenges associated with them. Integrating VIs into Marketing strategies requires addressing authenticity and emotional connection issues to maximize their effectiveness in influencing consumer behavior and building trust-based relationships.}, language = {en} } @masterthesis{Varma, type = {Bachelor Thesis}, author = {Varma, Soyjaudah}, title = {Analysis and Forecast of Tourism Market 2024: An application of Tourism Area Lifecycle Model to Mauritius Island}, school = {Hochschule Rhein-Waal}, abstract = {The study aims to address the gap in understanding the future of tourism in Mauritius, which leads to a lack of effective strategic and resource planning. This is achieved by finding the current and future direction of tourism of Mauritius based on the Tourism Area Lifecycle (TALC) model and performing an analysis to forecast the tourism market for year 2024. Data was collected from annual reports, budget speech reports and statistical reports from various Mauritian government official websites and newspaper research. The TALC model and time series statistical methods of forecasting were employed to understand tourism evolution stages and predict future tourist traffic in Mauritius. Results demonstrated that Mauritius is actually in a second Rejuvenation phase and can soon enter the Stagnation phase of the TALC model with a forecasted tourist arrival of approximately 31,857 by sea, 1,298,655 by air and on average 108,500 total monthly tourist arrivals by air by end of year 2024. The findings reflect the importance of sustainable and efficient tourism practices and strategic planning and provides a model for policy makers, tourism stakeholders, the Government and for other island destinations aiming to understand their tourism development and prepare for future challenges and opportunities in their tourism sector.}, language = {en} } @masterthesis{FopaMamene, type = {Bachelor Thesis}, author = {Fopa Mamene, Morelle}, title = {Secure Access Service Edge (SASE): Architecture, Implementation, and Performance Evaluation}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20700}, school = {Hochschule Rhein-Waal}, pages = {72}, abstract = {In today's digitally evolving world, companies are faced with modern problems like data breaches, ensuring seamless and secured access to their cloud-based assets, and the decongestion of routed traffic to their data centres which are all problems related to the ongoing digital evolution. This thesis examines the topic of Secure Access Service Edge (SASE), which is a zero-trust framework combining cutting-edge network security technologies with software-defined connectivity, and evaluates the effectiveness of its core components, such as Software Defined Wide Area Network (SD-WAN), Zero Trust Network Access (ZTNA), Cloud Access Security Broker (CASB), Secure Web Gateway (SWG), and Firewall as a Service (FWaaS), in creating a secure, fast, and reliable corporate network infrastructure. The conclusions obtained in this document are a result of analysing the network architecture of Uniper, a global company in the energy sector which produces and delivers energy, and recently shifted its resources to the cloud by adopting SASE. The outcome of the analysis revealed that, SASE indeed enhances users' experience and provides several benefits to the company's network connectivity like reduced latency, connections redundancy, and improved bandwidth. Going through this document will help understand how SASE components can work to provide a revolutionary solution to companies through a proposed implementation roadmap, and how SASE compares to traditional network security models like Virtual Private Network (VPN) and Multiprotocol Label Switching (MPLS).}, language = {en} } @masterthesis{Zhou, type = {Bachelor Thesis}, author = {Zhou, Shangkuan}, title = {The double shock of new food packaging policies and the COVID-19 pandemic}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20452}, school = {Hochschule Rhein-Waal}, pages = {143}, abstract = {The COVID-19 crisis has profoundly affected the world, and at the same time, with the implementation of new packaging act in Germany, the relevant organizations must respond. One example is related to the German food packaging industry, where small and mediumsized enterprises were affected and had to adopt strategic responses. The previous literature on crisis management is still immature in terms of strategic responses to the crisis of this double shock. Therefore, the aim of this paper is to analyze how smes in the singleuse take-away food packaging industry in the German food packaging industry respond to the double shock of the COVID-19 pandemic and the new packaging policies. Thus, the specific strategy and theory of the food packaging industry facing the double shocks are analyzed and discussed. Ten semi-structured interviews were conducted with operators and top managers of singleuse food packaging companies using a multi-case study approach. Cross-case analysis identified common strategic responses such as Retrenchment, Persevering innovation, exit, and cooperation to address challenges posed by shocks. Crisis management frameworks were developed based on integrated strategic responses. Companies in the food packaging industry strategically combine these responses rather than employing them in isolation, enabling related enterprises to thrive and progress amidst crises. This study makes a supplement to the field of strategic response in the field of crisis management.}, language = {en} } @misc{LennarzMai, author = {Lennarz, Hannah Katharina and Mai, Julia}, title = {Gef{\"u}hlsbarometer}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20686}, abstract = {Das Gef{\"u}hlsbarometer ist ein p{\"a}dagogisches Instrument, das Kindern helfen soll, ihre Gef{\"u}hle besser zu verstehen und zu kommunizieren. Mit Hilfe eines einfachen visuellen Systems k{\"o}nnen Kinder ihre momentane Gef{\"u}hlslage auf einer Skala von 0 „gar nicht gut" bis 10 "sehr gut" einordnen und verbalisieren. Diese Methode schafft nicht nur ein Bewusstsein f{\"u}r die eigene emotionale Befindlichkeit, sondern bietet auch einen Einstieg in den Dialog zwischen Kindern und Eltern bzw. Kindern und P{\"a}dagog*innen. Das Gef{\"u}hlsbarometer wurde als praktischer T{\"u}rh{\"a}nger entworfen, der sowohl in Bildungseinrichtungen als auch zu Hause verwendet werden kann. F{\"u}r einen dauerhaften Einsatz sollte das Schild auf stabileres Papier mit mindestens 200 g/m² gedruckt werden. Die Bastelanleitung f{\"u}r das Gef{\"u}hlsbarometer wurde f{\"u}r Kinder im Alter von 8 bis 12 Jahren entwickelt, ist einfach umzusetzen und kann bei Bedarf flexibel an verschiedene Altersgruppen angepasst werden.}, language = {de} } @masterthesis{Achu, type = {Bachelor Thesis}, author = {Achu, Maxwell Tchoffo}, title = {Assessing the Viability of Cassava and Corn-Derived Bioethanol to Enhance Sustainable Energy Transition and Energy Security in the West African Region}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20668}, school = {Hochschule Rhein-Waal}, abstract = {This thesis assesses the viability of cassava and corn/maize-derived bioethanol to enhance sustainable energy transition and energy security in the West African region. With the region facing significant energy challenges, including reliance on fossil fuels, limited access to electricity and high energy costs, bioethanol offers a promising alternative. The study evaluates the physical feasibility, yield differences, resource requirements, environmental impact, and socioeconomic implications of using these crops for bioethanol production. A comprehensive methodology involving laboratory experiments and literature review is employed. Results demonstrate that cassava has a higher bioethanol yield than maize, with more efficient enzymatic hydrolysis and fermentation processes. Additionally, cassava's adaptability to marginal lands, lower water usage, and reduced greenhouse gas emissions make it a more sustainable feedstock. Economically, cassava-based bioethanol production is more cost-effective and has better market integration due to the established supply chain in the region. However, the social implications, particularly food security concerns necessitate careful consideration and the development of integrated food and fuel production systems. The study concludes that cassava holds significant potential for bioethanol production in West Africa, providing a sustainable economically viable solution for the region's energy needs. Recommendations are made for policymakers, investors, and stakeholders to optimize the use of cassava and maize for bioethanol production, emphasizing the importance of balancing biofuel with food security and rural development}, language = {en} } @misc{OPUS4-2057, title = {13/2024 Ordnung zur Regelung des Verfahrens zur Verh{\"a}ngung von Ordnungsmaßnahmen bei Ordnungsverst{\"o}ßen durch Studierende an der Hochschule Rhein-Waal vom 10.09.2024}, volume = {2024}, number = {13}, organization = {Hochschule Rhein-Waal}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20570}, pages = {6}, language = {de} } @masterthesis{Brezovich, type = {Bachelor Thesis}, author = {Brezovich, Hannah}, title = {Innovative Enzymsysteme der Lignin Polymerisation f{\"u}r nachhaltige Holzprodukte}, school = {Hochschule Rhein-Waal}, abstract = {Die Entwicklung nachhaltiger und effizienter 3D-Drucktechnologien ist von zentraler Bedeutung f{\"u}r den Fortschritt in der Fertigung und Industrie. Ein vielversprechender Ansatz ist der Einsatz von Holzmaterialien wie Lignin, einem Abfallstoff der Papier- und Zellstoffindustrie. Zur Verbesserung der mechanischen Eigenschaften solcher Werkstoffe in der Anwendung ist der Einsatz biotechnologischen Komponenten, wie Laccasen, die die Polymerisation von Lignin katalysieren k{\"o}nnen, von Nutzen. In der Projektgruppe „BioHolz3D" des Fraunhofer Institut f{\"u}r Produktionstechnik und Automatisierung wird sich dem Prozess gewidmet, durch 3D-Druck neue und nachhaltige Produkte aus enzymatisch verkn{\"u}pftem Lignin mit weiteren Holzreststoffen zu produzieren. Hierf{\"u}r wird die Zusammensetzung von Holzmaterialien und deren m{\"o}gliche Eignung f{\"u}r die additive Fertigung analysiert. In dieser Thesis werden verschiedene Ans{\"a}tze verfolgt, um die Optimierung konventioneller Enzyme und m{\"o}glichen Enzymalternativen zu erreichen und eine Eignung dieser anhand verschiedener Methoden zu validieren. Nach der Herstellung verschiedener Materialkombinationen von Holzwerkstoffen sollen diese darauf angewendet werden, wobei das Ziel ist, die Ligninpolymerisation bei geringerem Enzymeinsatz zu erh{\"o}hen und Ressourcen wie Kosten und Energie einzusparen, um mit Hilfe des Liquid-Desposition-Modeling (LDM) erste Probek{\"o}rper herzustellen. Dabei wurden bestehende Prozessschw{\"a}chen analysiert, Fehlerursachen diskutiert und deren Auswirkungen betrachtet. Im Rahmen dieser Arbeit konnte nachgewiesen werden, dass die Enzymaktivit{\"a}t der Laccasen aus Trametes versicolor und Aspergillus sp durch Zugabe verschiedener Metallionen gesteigert werden kann. In der Anwendung an einem Modellsubstrat und Lignin zeigte sich, dass Kupfer- und Eisenionen mit der Enzymaktivit{\"a}t korrelieren. Darauf basierend wurden Testobjekte hergestellt, an denen die Wirkung nachgewiesen werden konnte.}, language = {de} } @masterthesis{Maung, type = {Bachelor Thesis}, author = {Maung, Wai Lin}, title = {Design, control and development of gas handling unit for hydrogen supply system for a 10kW fuel cell system}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20335}, school = {Hochschule Rhein-Waal}, abstract = {Hydrogen fuel cells have been gaining attentions for marine mobility application because of it's potential as a promising green technology with high energy intensity and reduced weight; Proton Exchange Membrane Fuel cell generates electric power by consuming hydrogen and oxygen as reactants. The fuel cell system consists of multiple sub-systems such as anode gas supply components, cathode air compressors with humidification systems and a cooling circuit. They all must be regulated according to the nominated working conditions of the stack, and one of the most important parameters is the hydrogen supply feed of the fuel cell system. The hydrogen supply system must be robust to handle different working conditions of the stacks such as load fluctuation, purging of water and nitrogen from anode side and subsequent pressure fluctuations. It is critical to control the anode pressure with respect to varying conditions since unbalanced H2 supply can lead to membrane failure, hydrogen starvation and drying out which can lead to deterioration and reduce the lifetime of the stack. The thesis describes the development of "Gas Handling Unit" as the effective hydrogen supply system which will be incorporated with a particle filter, switch off solenoid valve, proportional valve, pressure transmitters and a pressure safety valve for venting during critical conditions. The design and control of the gas handling unit is detailed along with material compatibility of metals and sealants polymers with hydrogen applications. The relevant safety regulations and technical standards are identified and followed during the design process.}, language = {en} } @masterthesis{Oha, type = {Bachelor Thesis}, author = {Oha, Kingsley}, title = {ADVANCEMENTS IN MICROSERVICE ARCHITECTURES: TACKLING DATA COMMUNICATION, SCALABILITY, AND CI/CD AUTOMATION CHALLENGES}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20463}, school = {Hochschule Rhein-Waal}, pages = {69}, abstract = {This paper delves into the optimization of microservice architectures, a critical aspect of contemporary software engineering, by focusing on three pivotal areas: efficient data communication, scalable design, and the automation of Continuous Integration/Continuous Deployment (CI/CD) processes. The study begins by examining the intricacies of data communication within microservices, identifying challenges such as network latency, data consistency, and fault tolerance. Strategies for efficient data handling, including advanced message queuing techniques and API gateways, are explored. The paper then shifts its focus to scalable design, assessing how microservices can be architected to gracefully handle varying loads and facilitate seamless scaling. This includes an analysis of containerization technologies, service orchestration, and load balancing strategies. The final part of the study addresses the automation of CI/CD processes, a cornerstone for achieving agility and high velocity in microservices development and deployment. The evaluation of modern CI/CD tools and methodologies, highlighting their role in enhancing deployment frequency, reducing lead time for changes, and improving overall system reliability. This comprehensive study aims to provide valuable insights and practical guidelines for software professionals and researchers, contributing to the refinement and advancement of microservice architectures in the dynamic world of software development.}, language = {en} } @misc{OPUS4-2038, title = {12/2024 Richtlinie zur Aus{\"u}bung des Hausrechts an der Hochschule Rhein-Waal (Hausordnung) vom 03.09.2024}, volume = {2024}, number = {12}, organization = {Hochschule Rhein-Waal}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20389}, pages = {6}, language = {de} } @masterthesis{Terlau, type = {Bachelor Thesis}, author = {Terlau, Adrian}, title = {Prototypische Entwicklung eines Legal Chatbots mit aktuellen Sprachmodellen f{\"u}r eine souver{\"a}ne Anwendung und Arbeitserleichterung}, school = {Hochschule Rhein-Waal}, abstract = {In dieser Bachelorarbeit wird der Nutzen von Chatbots zur Unterst{\"u}tzung von deutschen Juristen in ihrer beruflichen T{\"a}tigkeit {\"u}berpr{\"u}ft. Hierzu wird zun{\"a}chst ein prototypischer Chatbot erstellt, der auf einem trainierten Grundlagenmodell aufbaut und durch Fine-Tuning mit einem Datensatz bestehend aus Gesetzestexten angepasst wird. Anschließend werden die Ergebnisse {\"u}ber Tests mit Juristen evaluiert. Es wird gezeigt, wie der Datensatz f{\"u}r das Fine-Tuning erstellt wird, welche Kriterien bei der Wahl des Grundlagenmodells beachtet werden m{\"u}ssen und welche Herausforderungen beim Erstellen eines Sprachmodells auftreten k{\"o}nnen. Dabei wird insbesondere auf die Auswahl relevanter Gesetzestexte, die Bereinigung und Strukturierung der Daten, sowie die spezifischen Anforderungen f{\"u}r die rechtliche Dom{\"a}ne eingegangen. Das Ergebnis dieser Thesis zeigt, dass der Prototyp bereits einen kleinen Nutzen f{\"u}r die juristische Recherche erzielt hat und einige Juristen diesen bereits im Beruf verwenden w{\"u}rden. Es wird jedoch auch deutlich, dass der Prototyp noch ein großes Verbesserungspotenzial hat und h{\"a}ufig falsche oder unzureichende Antworten erstellt. Dies unterstreicht die Notwendigkeit weiterer Optimierungen und Anpassungen, um die Zuverl{\"a}ssigkeit und Genauigkeit des Chatbots zu erh{\"o}hen.}, language = {de} } @masterthesis{Vu, type = {Bachelor Thesis}, author = {Vu, Trong Khang Tommy}, title = {{\"U}ber die antidepressiven Effekte sportlicher Aktivit{\"a}t: Eine Metaanalyse klinischer Studien zu potenziellen Wirkmechanismen}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20348}, school = {Hochschule Rhein-Waal}, pages = {80}, abstract = {In dieser Bachelorarbeit wurde untersucht, wie k{\"o}rperliche Aktivit{\"a}t als adjuvante oder nicht-pharmakologische Therapie bei Depressionen eingesetzt werden kann. Es wurden sowohl die antidepressiven Effekte als auch potenzielle Wirkmechanismen analysiert. Der theoretische Teil beleuchtet Depressionen, neurobiologische Prozesse sowie g{\"a}ngige Behandlungsans{\"a}tze. Die Ergebnisse einer systematischen Literaturrecherche zeigen, dass k{\"o}rperliche Aktivit{\"a}t positive Effekte auf depressive Symptome, die maximale Sauerstoffaufnahme (VO2) und die Schlafqualit{\"a}t hat. Insbesondere individuelle Programme sind wirksam. Es wurden die Vor- und Nachteile der Sporttherapie er{\"o}rtert, sowie Empfehlungen f{\"u}r zuk{\"u}nftige Forschung gegeben.}, language = {de} } @masterthesis{Nshemeza, type = {Bachelor Thesis}, author = {Nshemeza, Kaitlyn}, title = {Assessment of the Biological root cause of Chicken Wing bone damage during chicken processing.}, publisher = {Hochschule Rhein Waal}, address = {Kleve, Germany}, school = {Hochschule Rhein-Waal}, pages = {51}, abstract = {Abstract The Poultry industry plays a significant role in meeting global demand for protein-rich food. However, there is a significant challenge in chicken processing which involves the occurrence of wing breakage that impacts both the aesthetic quality of the product and raises concerns regarding animal welfare and economic sustainability. This thesis aims to investigate the underlying biological factors associated with wing damage during processing by comparing wing structures of broilers raised under different management systems. This investigation focuses on exploring the chicken wing breakage contributing factors and cultivating a better understanding of this challenge to aid the chicken processing industry. This objective will be achieved by a comparative analysis of internal wing structures with a focus on distal humeral growth plate development observed in chicken wings from broilers raised under different production systems. The packaging and selling of damaged chicken wings for human consumption is prohibited by the European Union due to the potential health risks and aesthetic reasons. Hence, the disposal of chicken carcasses with wing damage results in financial losses for the company. An internal comparative analysis of the chicken wings aided by dissection techniques as well as X-ray fluorescence (XRF) spectrometry analysis of elements present at the bone growth plates will be carried out with an intention of quantifying the structural variations in broiler wings from different management systems. By elucidating the internal features and compositions of the different chicken wings with comparison to relevant literature and recent related discoveries, this research seeks to identify biological factors potentially responsible for wing damage among different broilers, allowing further intervention strategies within the industry. The findings from this study have implications for both industry practices and animal welfare standards. By discovering potential biological root causes of wing damage, this research provides valuable insights for optimizing processing protocols and equipment design to minimize trauma to birds and enhance product quality. In addition, a deeper understanding of physiological responses of chicken to processing stress can encourage more humane and efficient poultry handling practices and management strategies to reduce losses from wastage as well as chicken welfare improvement in commercial broiler production. The overall contribution of this thesis is towards the advancement of knowledge in poultry production and the importance of considering the biological factors and internal structures of chicken wings in designing processing systems. Through collaborative efforts between researchers, stakeholders and other parties involved, the insights gained from this study will aid sustainable practices that prioritize animal welfare, product quality assurance and economic sustainability in the poultry industry.}, language = {en} } @masterthesis{Feers, type = {Bachelor Thesis}, author = {Feers, Juliana}, title = {Job Satisfaction and the Workplace Expectations of Young Professionals}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20300}, school = {Hochschule Rhein-Waal}, pages = {77}, abstract = {In the context of changing workplace norms and rapidly changing technological environments, this thesis examines the effects of expectations about the workplace on young professionals' career decisions and job satisfaction in Germany. It evaluates the impact of workplace flexibility, corporate culture, and further training opportunities on young professionals through a review of existing literature and a survey conducted by the author. This analysis is guided by theoretical frameworks such as the Person-Environment-Fit Theory, Social Cognitive Career Theory, Job Demand-Resources Model, Boundary Theory, Expectancy Theory of Motivation, and Human Capital Theory, which comprehensively understand the relationship between environmental elements and job satisfaction and career decision-making processes. The findings show that career growth and job satisfaction are significantly increased when there is a strong match between the expectations of young professionals and the realities of their work environments. The study emphasizes how important it is for organizations to modify their approaches to create work environments that encourage young professionals' career ambitions and satisfaction. This study offers insightful information about efficient organizational strategies that may draw in, fulfill the needs of, and keep young professionals satisfied.}, language = {en} } @masterthesis{Elzoghby, type = {Bachelor Thesis}, author = {Elzoghby, Abdalla}, title = {An Elaborated Environmental Life Cycle Assessment on Renewable Energy in Germany}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20295}, school = {Hochschule Rhein-Waal}, pages = {93}, abstract = {Life Cycle Assessment is a method of assessing the environmental impacts throughout the life cycle of a product. It was standardized by ISO to aid comparison of different studies employing the method of Life Cycle Assessment. The standard contains the phases: Goal and Scope, Life Cycle Inventory, Life Cycle Impact Assessment, and Interpretation. A Life Cycle Assessment is conducted on renewable energies in Germany, namely Wind Energy, Solar Energy, Bioenergy, and Green Hydrogen Energy. The data collection phase of the life cycle inventory was performed under several assumptions and limitations which extend to the results. It is established through the results of the study that Green Hydrogen energy holds the greatest environmental impacts out of the four energies. This impact is justified as Green Hydrogen is an energy carrier, rather than a producer. The impacts of Wind Energy, Solar Energy, and Bioenergy are compared in the absence of Green Hydrogen Energy, as they are all energy producers. It is found that the overall environmental impacts of Bioenergy are the greatest of the three, while Wind Energy has the lowest impacts. Solar Energy had greater impacts than Bioenergy in certain impact categories. Comparison of this study with previous Life Cycle Assessments reveals some similarities and differences. Contrasting this study to the German Sustainable Development Strategy shows that the strategy as well as the current trends are supported by the results of this study, but can be improved in certain aspects.}, language = {en} } @masterthesis{Untucht, type = {Bachelor Thesis}, author = {Untucht, Hannah Lea}, title = {Status quo of Livestock Guardian Dogs for the Protection of Livestock in Germany in the Context of the Wolf's Return}, school = {Hochschule Rhein-Waal}, abstract = {The resurgence of the Eurasian wolf (Canis lupus lupus) in Germany brings multiple conflicts with it and divides people into three parties. One party welcomes the wolf back to Germany and sees its potential to increase the biodiversity in Germany's ecosystems and forests, one party sees the harm in the wolf by killing livestock animals such as equines (Equus), sheep (Ovis aries) and cattle (Bovine) yet another party is torn in between. Many farmers and shepherds are trapped somewhere in between in these opposing views. The return of the wolf has led to conflicts between livestock owners and the predators, necessitating effective and sustainable solutions to protect livestock. This thesis examines the status quo of LGDs as a non-lethal method for guarding livestock in the context of the wolf's return in Germany. It explores the historical use of LGDs, their reintroduction in modern German agricultural practices, and the factors influencing the success or failure. Through a comprehensive analysis of existing literature and interviews, the study investigates the socio-economic, ecological and policy-related dimensions of LGD use. Key areas of focus include the training and management of LGDs, their impact on reducing livestock loss, the attitudes and perceptions of livestock owners towards these guardian animals as well as the attitudes and perceptions of non - livestock owners. Findings indicate that LGDs can significantly reduce wolf predation on livestock when properly implemented and supported by appropriate training and management practices. Nevertheless, challenges such as initial investment costs, maintenance, and integration with other livestock protection measures need to be addressed. The research highlights the importance of education and support for livestock owners, as well as the need for policies that facilitate the use of LGDs. This concludes that LGDs can be a useful, non-lethal protection measure addition to livestock farms. However, it is found that a combination of protection measures is the most effective in protecting livestock from predators.}, language = {en} } @masterthesis{Turan, type = {Bachelor Thesis}, author = {Turan, B{\"u}sra}, title = {Islamic Banking and Finance: Supply and Demand in Germany}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20284}, school = {Hochschule Rhein-Waal}, pages = {60}, abstract = {This paper examines the current landscape of Islamic banking and finance in Germany through two research approaches. The online survey investigated the awareness and perception of consumers, the views on Islamic banks, the social media presence and advertisements of Islamic banks, the usage of consumers, and the demographics of the group. The survey reached 402 participants consisting of Muslims and Non-Muslims, who expressed a moderate demand for Islamic banks. The Internet analysis, focused on search results on Google, identifying the suppliers of Islamic banking and finance products and services within the first ten links. Currently, KT Bank AG is the only Islamic bank operating in Germany. Zinsfrei Investments GmbH and Inaia GmbH provide financial services in the investment sector. Overall, the current landscape shows a moderate demand and a limited supply.}, language = {en} } @masterthesis{Grigo, type = {Bachelor Thesis}, author = {Grigo, Tobias}, title = {Das Homeoffice in der Verwaltung - Eine Zwischenbilanz und Erfahrungsberichte zu Best Practices, Weiterentwicklung und Herausforderungen}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20272}, school = {Hochschule Rhein-Waal}, pages = {103}, abstract = {The home office has become established in the offices of numerous companies and administrations since the events of the global COVID-19 pandemic and has posed numerous challenges. Particularly in Germany, administrative authorities were confronted with the challenge of quickly responding to the events of the pandemic and taking appropriate measures to curb the spread of the virus in the offices of administrations. This paper examines the use of the home office in administration during the pandemic by combining quantitative and qualitative methods such as statistical analyses, interviews, and case studies. In doing so, it sheds light on the experiences of employees as well as the challenges and potentials of home office use. The context aims to demonstrate that the investigation of home office use in administration during the pandemic was crucial in understanding the effects of the newly designed work practices on administrative organizations to better shape future work models. The aim of this study is to gain insights that contribute to the further development of the home office concept in administration. This includes evaluating the long-term effects on work efficiency, work-life balance, and corporate culture. These insights contribute to assessing the effectiveness and efficiency of the home office in administration and lay the groundwork for how optimized work arrangements can be created. They also provide valuable insight into the adaptability of administrative structures to continuously changing work environments. The results of this study will help develop practical solutions and optimize the implementation of the home office in administration. The findings lay new foundations for future research that could address further aspects of home office use in administration, such as long-term effects on organizational performance and employee satisfaction, as well as the development of guidelines for effective implementation of hybrid work models.}, language = {de} } @misc{Akter, type = {Master Thesis}, author = {Akter, Most Sarmin}, title = {Data Analysis of the "Loyalty Program-Valeo Specialist Club" to Improve the Independent Aftermarket: Designing an Efficient Marketing Strategy}, school = {Hochschule Rhein-Waal}, abstract = {Nowadays, a loyalty program is one of the most significant marketing tools for winning genuine customer loyalty. Valeo, a global automotive supplier, also offers the Valeo Specialist Club loyalty program and rewards garage or workshop members who only purchase Valeo spare parts. The core intent of this study is to understand the importance of the Valeo loyalty application, members' insights, and their experiences for improving the future planning, aftermarket performance, and management of the Value Specialist Club. In today's competitive market, products, services, and customer loyalty are valuable assets, so the program was created to enhance member satisfaction and loyalty with the Value Specialist Club. A mixed-method approach was used to answer the study question and findings, improve member satisfaction, and refine marketing strategies, using a survey as primary data and Qlik Sense as secondary data. Besides, using a survey methodology, the study collected 79 responses from different countries (the United Kingdom, Germany, Belgium, and the Netherlands) and analyzed the data with only 58 Specialist Club member's responses. A reliability examination was additionally accomplished to measure the accuracy of the collected survey data. Qlik Sense, Microsoft 365, and Excel 2016 were used for data analysis and visualization, which involved descriptive analysis, correlation coefficients, and text sentiment analysis. The study results show positive trends in member satisfaction across four markets, but a decreasing engagement rate is noticeable. In general, members from all countries were satisfied with Valeo products and services, contrasting with moderate dissatisfaction with the Valeo Specialist Club app and customer service. The study also found a strong correlation between the Valeo Specialist Club app, loyalty service, and customer service, suggesting improvements to meet member expectations and preferences. Nevertheless, the study also emphasizes the need to enhance the Valeo Specialist Club registration process, loyalty program features, and benefits to align with current trends, foster increased member satisfaction, and sustain loyalty within the independent aftermarket. Furthermore, the conclusions of this study will aid in developing upcoming marketing plans.}, language = {en} } @masterthesis{Devasurendra, type = {Bachelor Thesis}, author = {Devasurendra, Inura}, title = {IMPROVING HOCHSCHULE RHEIN-WAAL CAFETERIA THROUGH LEAN PRACTICES AND MATRIX PROCEDURE FOR LAYOUT PLANNING}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-19976}, school = {Hochschule Rhein-Waal}, pages = {91}, abstract = {Cafeterias, integral to the food and beverage industry, face challenges such as long queues and high waiting times, leading to customer dissatisfaction. While temporary measures like altering food serving strategies or eliminating stations may provide short-term relief, having sustainable solutions necessitates comprehensive layout planning. The thesis aims to propose an optimized cafeteria layout which will reduce the throughput distance and throughput time of the customers, and eventually, suggest recommendations for Hochschule Rhein-Waal Mensa. Through data collection on customer movements and preferences, service times, and waiting periods, the existing layout was analyzed, and it revealed inefficiencies. By applying Lean management tools and the Matrix Procedure, a proposed layout was formulated, aiming to reduce throughput distance and time. Evaluation of both current and proposed layouts showed that out of 52 customers, 69.23\% of customers' throughput distance was reduced, and 59.61\% of customers' throughput time was reduced compared to the existing layout. The thesis concludes by suggesting general recommendations and improvements, including an optimized process diagram and layout, and a proposed spaghetti diagram. Eventually, the research contributes to food and beverage field by providing insights into better layout planning for facility managers, logisticians, and entrepreneurs, offering tangible strategies to enhance cafeteria operations and customer satisfaction.}, language = {en} } @masterthesis{Asiedu, type = {Bachelor Thesis}, author = {Asiedu, Marvin Kwabena}, title = {Appreciation in Organizations - the Effects of Appreciation and Social Support on Employee's Stress and Turnover Intention}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:1383-opus4-20220}, school = {Hochschule Rhein-Waal}, pages = {118}, abstract = {In der vorliegenden Studie wurde Wertsch{\"a}tzung im Hinblick auf ihren Zusammenhang zu sozialer Unterst{\"u}tzung sowie dem Stresserleben und der Fluktuationsabsicht von Mitarbeiten untersucht. Erwartet wurde eine durch Wertsch{\"a}tzung vermittelte negative Assoziation zwischen sozialer Unterst{\"u}tzung und dem Stresserleben von Mitarbeitenden, und dass Stress den Zusammenhang zwischen Wertsch{\"a}tzung und Fluktuationsabsicht vermittelt. Untersucht wurde außerdem, ob sich die Wertsch{\"a}tzungen aus verschieden Quellen gegenseitig in ihren Effekten auf das Stresserleben beeinflussen. Die Daten zur Analyse wurden mittels eines Online-Fragebogens erhoben. Die Testpersonen wurden aus dem privaten Umfeld des Autors und {\"u}ber eine Online-Plattform rekrutiert. Die Analyse basiert auf Daten von 65 Arbeitnehmern und 118 Arbeitnehmerinnen, von denen 69,4\% Vollzeit besch{\"a}ftigt waren. Wertsch{\"a}tzung hatte einen negativen Effekt auf das Stresserleben und die Fluktuationsabsicht von Mitarbeitenden. Der Effekt auf die Fluktuationsabsicht wurde teils durch das Stresserleben mediiert. Auch soziale Unterst{\"u}tzung hatte einem negativen Effekt aus das Stresserleben, der jedoch durch die Wertsch{\"a}tzung vermittelt wurde. Der st{\"a}rkste Effekt auf das Stresserleben wurde f{\"u}r die Wertsch{\"a}tzung von Vorgesetzen gemessen, gefolgt von der Wertsch{\"a}tzung durch Kolleg/-innen. Ein Interaktionseffekt auf das Stresserleben fand sich nur f{\"u}r die Wertsch{\"a}tzung durch Vorgesetzte und die durch Klient/-innen. Die Ergebnisse untermauern die Relevanz eines wertsch{\"a}tzenden Verhaltens am Arbeitsplatz, insbesondere des Verhaltens von Vorgesetzten. Wertsch{\"a}tzung erscheint als ein ad{\"a}quates Mittel gegen Stresserleben und Fluktuation in Organisationen. Eine M{\"o}glichkeit Wertsch{\"a}tzung zu zeigen, scheint in Unterst{\"u}tzungsangeboten zu bestehen. Soziale Unterst{\"u}tzung, die keine Wertsch{\"a}tzung kommuniziert, zeigt keinen signifikanten Effekt auf das Stresserleben von Mitarbeitenden.}, language = {de} } @masterthesis{Boden, type = {Bachelor Thesis}, author = {Boden, Jan}, title = {Aufbau einer Jenkins Pipeline im Rahmen der DevOps Prozesse}, school = {Hochschule Rhein-Waal}, abstract = {Diese Bachelorarbeit befasst sich mit der Implementierung einer Continuous Deployment Pipeline zur Optimierung der Bereitstellung des technischen Unterst{\"u}tzungssystems MESTA in der Justiz Nordrhein-Westfalens. Da derzeit keine Integration der DevOps Kultur existiert, soll die Machbarkeit der Umsetzung einer solchen Pipeline gepr{\"u}ft werden. Der bisher durchgef{\"u}hrte Prozess wurde bisher durch die Verfahrenspflegestelle MESTA/ACUSTA weitgehend manuell bearbeitet. F{\"u}r die transparente Aufstellung der im Bereitstellungsprozess enthaltenen Arbeitsschritte wurden, zusammen mit der VPS, eine Bestandsaufnahme durchgef{\"u}hrt. Auf Basis dieser wurde ein Konzept entwickelt, um den Prozess zu standardisieren und eine Grundlage f{\"u}r eine effiziente Automatisierung zu realisieren. Anschließend wurde f{\"u}r den Beweis der Machbarkeit dieser Pipeline eine Referenzimplementierung umgesetzt. Daf{\"u}r wurde im Rechenzentrum der Justiz eine umfangreiche Infrastruktur aufgebaut, die sich aus dem Jenkins Controller, einem Jenkins Agent und einer Gitea Instanz mit zwei enthaltenen Repositories zusammensetzt. Die Pipeline wurde {\"u}ber das CI/CD Tool Jenkinns mittels eines deklarativen Ansatzes und unter Verwendung einer Shared Library realisiert. Aufgrund der Windows-basierten Zielumgebungen wurden innerhalb der Groovy Skripte auch PowerShell Skripte eingesetzt, um Windows spezifische Operationen durchzuf{\"u}hren. Die Evaluation der implementierten Pipeline f{\"u}hrt zu dem Ergebnis, das eine signifikante Verk{\"u}rzung der Arbeitszeit und eine Standardisierung der enthaltenen Prozesse sowie eine erh{\"o}hte Transparenz erreicht werden konnte. Dies demonstriert, wie DevOps-Praktiken und Automatisierungen auch in sicherheitskritischen Umgebungen wie der Justiz NRW zur Effizienzsteigerung in der Bereitstellung der Fachverfahren beitragen k{\"o}nnen. Somit kann die Forschungsfrage best{\"a}tigt werden und die in der Arbeit herausgearbeiteten Informationen auch anderen Verfahrenspflegestellen als Vorlage f{\"u}r die Umsetzung von DevOps Praktiken dienen.}, language = {de} }