Create a clear, scientifically rigorous, and convincing PhD defense presentation. The presentation should explain the research topic from a broad perspective before introducing the specific research problem. It should clearly demonstrate the scientific relevance of the work, explain the research gap, present the methodology, highlight the most important results, critically discuss the findings, and conclude with the main contributions and implications of the research. The presentation should follow this structure: Introduction and scientific background, Research problem, Challenges and research gap, Research objectives and questions, Results and Discussion, Summary, Conclusions and future work The slides should prioritize the most important findings rather than attempting to include every detail from the dissertation. Do not simply summarize the dissertation chapter by chapter. Instead, focus on the scientific narrative and the key findings that support the central research question.