Die ethnografische Fallstudie untersucht am Beispiel des Verfügungsfonds Beteiligungsprozesse sozialer Stadtentwicklung. Gezeigt wird, dass Beteiligung eng mit der Konstruktion sozialer Probleme in segregierten Stadtteilen verbunden ist. Im Mittelpunkt steht die Konstruktion der Gruppe ‚Südosteuropäische Zuwanderer‘, die im Stadtteildiskurs als problematisch markiert und von der Partizipation ausgegrenzt wird. Mit einem Fokus auf Problemdiskurse sozialer Stadtentwicklung macht die Forschung nicht intendierte Folgen sichtbar und zeigt, wie Beteiligungsformate soziale Ausgrenzung (re-)produzieren können.

Abstract Comprehensive Overview This dissertation starts with a theoretical section that is composed of general foundations and reflections about the fundamental concepts and analytical models. The second chapter presents own but attended research which is framed by these essential thoughts. The general discussion reconsiders seminal conclusions, critically disputes the overall outcomes, and elaborates on research questions that emerged from the findings in view of posterior knowledge of this work. Research Activity and Empirical Studies with Reference to this Dissertation (1) A review article presents comprehensive reflections about age-graded interventions that are evident from research on reminiscence and aging, the results are reflected within their respective conceptual and empirical context. Presentation of meta-analytical findings and evidence from a random controlled trial (RCT). (2) Experimental RCT in trauma analogue paradigm explores three brief interventions in a psychopathology model with zero result. Evidence of optimal model complexity on: measurements, choice of outcomes, external validity. Statistical analyses use (a) General Linear Model (GLM) and (b) Latent Growth Curve Modeling (LGCM) within Generalized Equation Estimations (GEE). (3) Temporal framing is studied in a cross-sectional correlational design. The analytical model evaluates measures of well-being and life quality whether they are predictive of a balanced time perspective. Accuracy is externally assessed by cross-validation and ranges in the upper percentile of correct predictions of balancedness. Adding the present time to the model raises the quota of explained variance, showing that time perspective (TP) has a three-dimensional structure. The usage of compound indices incrementally increases fit, suggesting that the metric indicators outperform the originating scales. Furthermore, the results propose a differentiated indication of their usage, depending on whether measuring absence or proximity is the objective. Methodological considerations ought to prioritize establishing a vague prior on even baserates which is precedent in classification tasks. Subjective well-being varies between balanced and unbalanced observations. Linear Discriminant Analysis (LDA) applies. Conclusion The recognition of self-reflective sameness creates a lifestory of purpose, coherence and meaning. Autobiographical reasoning operates a variety of cognitive-emotional processes, whereby reminiscence and time perception are important.

Early-stage wound infections are challenging to detect; however, a timely diagnosis significantly improves healing outcomes and reduces the risk of scarring or systemic complications. Healthy skin is mildly acidic (average pH ~4.7), while chronic or infected wounds remain alkaline (7.15–8.9) and gradually return to acidic during healing. Real-time monitoring of wound pH has emerged as a valuable tool for tracking the progression of healing, providing an early warning of potential bacterial infection, and reducing unnecessary antibiotic therapy. pH-sensitive dyes that undergo visible color changes within carrier materials present a simpler and cost-effective approach for wound pH monitoring. Current pH indicators, however, suffer from low photostability and dye leaching, limiting their practical use. This work presents the design, synthesis, and functional evaluation of carborhodol dyes, developed as photostable alternatives to conventional pH indicators, optimized for the physiological pH range. Nine novel carborhodols were synthesized from their respective carbopyronine precursors through hydrolytic deamination, with structural modifications designed to enhance photostability, solubility, and bioconjugation potential. The dyes exhibit distinct pH-dependent optical properties, with pKa values in the physiologically relevant range (5–7). Deprotonation leads to increases in absorption, quantum yield, and fluorescence lifetime, enabling sensitive detection of pH changes by both colorimetric and fluorogenic modes. Compared to the standard indicator fluorescein and the common biological label Cy5, carborhodols display superior photostability, addressing a key limitation of existing probes. Additionally, the basic forms exhibit pronounced positive solvatochromism, indicating their utility as polarity-sensitive probes. To demonstrate practical applications, the dyes were incorporated into polymer-based systems. Encapsulation in PEG-b-PLA vesicles resulted in an increase in fluorescence intensity with rising pH levels, whereas covalent grafting to chitosan films yielded hydrogel dressings capable of reversible, real-time pH monitoring within the wound-relevant range. These hybrid materials combine high stability and biocompatibility, with pH-dependent color changes visible to the naked eye under ambient light, and fluorescence turn-on readily detectable by the eye under UV illumination, showing the successful translation of molecular dye properties into functional biomedical platforms, and highlighting their promise for smart wound dressings and related diagnostic devices.

The Bundle Explorer: Touch is the prototype of a praxeological research platform for studying situated practices. Its conceptualization draws upon Wittgenstein’s work and his method of grammatical investigation. With its pool of diverse filmic ‘prepared specimens’ from the research project Early Childhood and Smartphone, the tool facilitates a comparative, probing, and contouring procedure that opens up new perspectives on touch practices in digital everyday life. This working paper recounts the context and process of the Bundle Explorer’s development, and outlines how to work with it. Considering grammatical investigation (Wittgenstein), praxeological bundle theory (drawing on Schatzki), and camera ethnography alongside one another, the paper develops methodological proposals for ways to address the following questions: How can a language-game analysis be deployed to study nonverbal practices, and how can bundle theory serve to discern how practices are situated? How can we bring Schatzki’s flat ontology together with Wittgensteinian thought, and to what extent can Wittgenstein’s übersichtliche Darstellung be seen as an experimental field that transcends medial and cultural boundaries? How could presentational grammar work? In this paper, the term ‘touch’ stands as a proxy for changing semantic fields in changing lifeworlds.