In dieser Seminararbeit skizziere ich den widersprüchlichen und ambigen Weg Hans Scholls beginnend mit seiner Jugend, dem Eintritt in die HJ bis zur inneren Abkehr und der Gründung der Weißen Rose. Dabei versuche ich nachzuweisen, dass die Entfremdung von der HJ durch die Struktur und innere Ideologie des Nationalsozialismus zustande kommt.:Für Führer und Vaterland - gegen Führer und Vaterland? Hans Scholls Weg von der HJ in den Widerstand. 1. Einleitung 3 2. Kurzbiographie Hans Scholl 4 3. Hans Scholls Weg in die HJ 5 4. Hans Scholl und die Entfremdung vom Nationalsozialismus 10 5. Konklusion 14 6. Literaturverzeichnis 16 Selbstständigkeitserklärung 17

Often overlooked in the study of nineteenth-century American literature, the New England writer Rose Terry Cooke elicited great popular appeal during the peak of her career. The admiration Cooke received from her readers and fellow writers compels one to question Cooke’s present-day obscurity. Cooke’s fiction and poetry seem inconsistent with the attitudes she express in her non-fiction, particularly concerning religion and women’s suffrage. She portrays women in miserable marriages, desperately looking for an escape. These “brides of Bluebeard” find different ways to cope with their predicament. While most never truly escape, many use (1) religious devotion, (2) masochism, and (3) homosocial relations as “coping mechanisms” in their plight. I identify each of these reactions to Bluebeard figures in Cooke’s writing in order to understand the contradictions in her works, for, like Cooke, these brides were products of their culture, torn between duty to self and duty to others.

Water contamination through substances called per- and polyfluoroalkyl substances (PFAS) is a worldwide problem. Being able to measure the concentrations of PFAS in water is a first step towards beating this contamination. One alternative is to use a field test kit instead of extensive lab equipment to monitor the contaminated areas. This thesis has investigated the possibility of using amine-functionalized mesoporous carbon as adsorbent to develop a detection method based on adsorbing first PFAS and then dye in aqueous solutions. The non-adsorbed dye concentrations are depending on the amount of PFAS, and hence the colour intensity in the remaining solution is proportional to PFAS concentration. Mesoporous carbon with amine functional groups were chosen as specific adsorbents for PFAS because of its large surface area and high adsorption capacity. It has been shown that some colorants would react in a similar way as PFAS on sorbents and thus can be used as an indicator for the user. In the study, the two most common PFAS, PFOA and PFOS, were studied and Rose Bengal was the dye. The adsorbent’s morphology, pore structure and pore size was verified with scanning electron microscopy (SEM), transmission electron microscopy (TEM) and nitrogen sorption before being tested. Adsorption tests were performed using different PFAS concentrations and a dye solution range in order to find three things: the detection range, the ratio powder/solution in order to see a difference, and the adsorption or saturation time for both PFAS and dye. This thesis concluded that even though the adsorbent was not as efficient as predicted, this method could be used for detecting PFAS concentrations down to at least 0.1 pg/ml and could be a possible approach for quick field tests in the future.

Water pollution is a profound ecological concern, exerting detrimental effects on human well-being, ecological systems, and animal life. Among the emerging contaminants that critically influence water quality and have garnered substantial scientific interest in recent times are per- and polyfluoroalkyl substances (PFAS). It is crucial to investigate the de- velopment of an easy technique for PFAS detection and measurement that can be used for quick analysis. This thesis explores the possibility to use amine-functionalized mesoporous carbon as an adsorbent to develop a detection method based on sequential adsorption of per- and polyfluoroalkyl substances (PFAS) and a dye, Rose Bengal, onto the adsorbent. The hypothesis is that the concentration of non-adsorbed dye is dependent on the amount of PFAS present, making the color intensity of the remaining solution proportional to the PFAS concentration. Mesoporous carbon was chosen as the adsorbent due to their high specific surface area, providing a high adsorption capacity, and the potential to functionalize the surface with amine groups which will attract the PFAS. Rose Bengal was selected as a concentration indicator as it has been shown that it can be used as a proxy for PFAS. In this study, the most prevalent PFAS compounds, namely PFOA and PFOS, were investigated. Prior to testing, the adsorbent underwent characterization using diverse techniques to show the porosity and particle morphology. The adsorption experiments encompassed varying PFAS concentrations and a range of dye solutions to determine the detection range, the powder-to-solution ratio necessary for discernible differentiation, and the adsorption or saturation time for both PFAS and dye. This thesis concludes that it was not possible to detect neither PFOA nor PFOS in the range of 0.1 pg/mL to 1 μg/mL with the setup, even though Rose Bengal adsorption could be detected down to 0.6 μg/mL. It was further observed that amine-functionalized hard templated mesoporous carbon has a higher adsorption capacity compared to the soft templated material.

No description available.

No description available.

No description available.

No description available.

No description available.

No description available.