@article{AmbrasatvonScheveSchauenburgetal.2016, author = {Ambrasat, Jens and von Scheve, Christian and Schauenburg, Gesche and Conrad, Markus and Schr{\"o}der, Tobias}, title = {Unpacking the Habitus: Meaning Making Across Lifestyles}, series = {Sociological Forum}, volume = {31}, journal = {Sociological Forum}, publisher = {Wiley-Blackwell}, address = {Hoboken}, issn = {0884-8971}, doi = {10.1111/socf.12293}, pages = {994 -- 1017}, year = {2016}, language = {en} } @phdthesis{Gruener2022, author = {Gr{\"u}ner, Andreas}, title = {Towards practical and trust-enhancing attribute aggregation for self-sovereign identity}, doi = {10.25932/publishup-56745}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-567450}, school = {Universit{\"a}t Potsdam}, pages = {xvii, 175}, year = {2022}, abstract = {Identity management is at the forefront of applications' security posture. It separates the unauthorised user from the legitimate individual. Identity management models have evolved from the isolated to the centralised paradigm and identity federations. Within this advancement, the identity provider emerged as a trusted third party that holds a powerful position. Allen postulated the novel self-sovereign identity paradigm to establish a new balance. Thus, extensive research is required to comprehend its virtues and limitations. Analysing the new paradigm, initially, we investigate the blockchain-based self-sovereign identity concept structurally. Moreover, we examine trust requirements in this context by reference to patterns. These shapes comprise major entities linked by a decentralised identity provider. By comparison to the traditional models, we conclude that trust in credential management and authentication is removed. Trust-enhancing attribute aggregation based on multiple attribute providers provokes a further trust shift. Subsequently, we formalise attribute assurance trust modelling by a metaframework. It encompasses the attestation and trust network as well as the trust decision process, including the trust function, as central components. A secure attribute assurance trust model depends on the security of the trust function. The trust function should consider high trust values and several attribute authorities. Furthermore, we evaluate classification, conceptual study, practical analysis and simulation as assessment strategies of trust models. For realising trust-enhancing attribute aggregation, we propose a probabilistic approach. The method exerts the principle characteristics of correctness and validity. These values are combined for one provider and subsequently for multiple issuers. We embed this trust function in a model within the self-sovereign identity ecosystem. To practically apply the trust function and solve several challenges for the service provider that arise from adopting self-sovereign identity solutions, we conceptualise and implement an identity broker. The mediator applies a component-based architecture to abstract from a single solution. Standard identity and access management protocols build the interface for applications. We can conclude that the broker's usage at the side of the service provider does not undermine self-sovereign principles, but fosters the advancement of the ecosystem. The identity broker is applied to sample web applications with distinct attribute requirements to showcase usefulness for authentication and attribute-based access control within a case study.}, language = {en} } @article{JuangSchachnerPevecZimmeretal.2020, author = {Juang, Linda P. and Schachner, Maja Katharina and Pevec-Zimmer, Sharleen and Moffitt, Ursula Elinor}, title = {The Identity Project intervention in Germany}, series = {New directions for child and adolescent development}, volume = {173}, journal = {New directions for child and adolescent development}, publisher = {Wiley}, address = {San Fransisco}, issn = {1534-8687}, doi = {10.1002/cad.20379}, pages = {65 -- 82}, year = {2020}, abstract = {We examined whether German adolescents who participated in an adapted 8-week school-based intervention, the Identity Project, reported greater changes in heritage and global identities and perceptions of classroom cultural climate. We used a longitudinal, wait-list control design pooling eight classrooms across the school years of 2018-2019 and 2019-2020. The sample included 195 seventh graders (M-age = 12.35 years, SD =.79, 39\% female, 83\% of migration background). Findings showed moderate support for more heritage identity exploration and greater perceptions of unequal treatment and critical consciousness climate in the intervention group. There were also important differences across conditions regarding how identity and climate related to adolescent outcomes. We conclude that the Identity Project can be adapted and applied in other cultural contexts such as Germany. It provides a necessary space for adolescents to engage in discussions about diversity, cultural heritage, social inequities, and their relevance to one's identities.}, language = {en} } @article{JuangSchachnerPevecZimmeretal.2020, author = {Juang, Linda P. and Schachner, Maja Katharina and Pevec-Zimmer, Sharleen and Moffitt, Ursula Elinor}, title = {The Identity Project intervention in Germany}, series = {New directions for child and adolescent development}, volume = {173}, journal = {New directions for child and adolescent development}, publisher = {Wiley}, address = {San Fransisco}, issn = {1534-8687}, doi = {10.1002/cad.20379}, pages = {65 -- 82}, year = {2020}, abstract = {We examined whether German adolescents who participated in an adapted 8-week school-based intervention, the Identity Project, reported greater changes in heritage and global identities and perceptions of classroom cultural climate. We used a longitudinal, wait-list control design pooling eight classrooms across the school years of 2018-2019 and 2019-2020. The sample included 195 seventh graders (M-age = 12.35 years, SD =.79, 39\% female, 83\% of migration background). Findings showed moderate support for more heritage identity exploration and greater perceptions of unequal treatment and critical consciousness climate in the intervention group. There were also important differences across conditions regarding how identity and climate related to adolescent outcomes. We conclude that the Identity Project can be adapted and applied in other cultural contexts such as Germany. It provides a necessary space for adolescents to engage in discussions about diversity, cultural heritage, social inequities, and their relevance to one's identities.}, language = {en} } @article{FitziMele2017, author = {Fitzi, Gregor and Mele, Vincenzo}, title = {The corrosion of character}, series = {Journal of Classical Sociology}, volume = {17}, journal = {Journal of Classical Sociology}, number = {2}, publisher = {Sage Publ.}, address = {London}, issn = {1468-795X}, doi = {10.1177/1468795X17693436}, pages = {143 -- 155}, year = {2017}, abstract = {The topic of this imaginary dialogue between Georg Simmel and Max Weber is the relation between work - in the sense of labour - and personality. Its aim is to show that the thinking of these 'founding fathers' of sociology can furnish valuable insight into the current issue of the corrosion of character in contemporary post-Fordist society. The concept of work still represents one of the major factors determining modern individuals' ability (or inability) to formulate personal, stable identities that enable them to become fully socialized. Both Simmel and Weber make reference to a common theoretical background that views the human being as a creature with originally rational potential, who is faced with the task of becoming a personality by means of consciously chosen life behaviour: This is evident in the parallelism between Simmel's interest in the concept of 'style of life' (Der Stil des Lebens) and Weber's research on the 'life conduct' (Lebensf{\"u}hrung) that arose in Western rationalistic culture.}, language = {en} } @article{Ehrensperger2017, author = {Ehrensperger, Kathy}, title = {Narratives of Belonging}, series = {Early Christianity}, volume = {8}, journal = {Early Christianity}, publisher = {Mohr Siebeck}, address = {T{\"u}bingen}, issn = {1868-7032}, doi = {10.1628/186870317X15017545210233}, pages = {373 -- 392}, year = {2017}, abstract = {Die Darstellungen genealogischer Netzwerke waren in der Antike Ausdruck der Weltsicht ihrer Erz{\"a}hler, mit deren Hilfe N{\"a}he und Distanz zwischen verschiedenen Gruppen und V{\"o}lkern ausgedr{\"u}ckt und hergestellt werden konnte. Auch Paulus bedient sich genealogischer Argumente, um die Beziehung nicht-j{\"u}discher Christus-Gl{\"a}ubiger zu Israel und ihrem Gott zu verdeutlichen. Es handelt sich um eine ethnozentrische Argumentation, deren Fokus aber gleichzeitig eindeutig theozentrisch ist.}, language = {en} } @article{TscheuschnerKaiserLisecetal.2022, author = {Tscheuschner, Georg and Kaiser, Melanie N. and Lisec, Jan and Beslic, Denis and Muth, Thilo and Kr{\"u}ger, Maren and Mages, Hans Werner and Dorner, Brigitte G. and Knospe, Julia and Schenk, J{\"o}rg A. and Sellrie, Frank and Weller, Michael G.}, title = {MALDI-TOF-MS-based identification of monoclonal murine Anti-SARS-CoV-2 antibodies within one hour}, series = {Antibodies}, volume = {11}, journal = {Antibodies}, number = {2}, publisher = {MDPI}, address = {Basel}, issn = {2073-4468}, doi = {10.3390/antib11020027}, pages = {22}, year = {2022}, abstract = {During the SARS-CoV-2 pandemic, many virus-binding monoclonal antibodies have been developed for clinical and diagnostic purposes. This underlines the importance of antibodies as universal bioanalytical reagents. However, little attention is given to the reproducibility crisis that scientific studies are still facing to date. In a recent study, not even half of all research antibodies mentioned in publications could be identified at all. This should spark more efforts in the search for practical solutions for the traceability of antibodies. For this purpose, we used 35 monoclonal antibodies against SARS-CoV-2 to demonstrate how sequence-independent antibody identification can be achieved by simple means applied to the protein. First, we examined the intact and light chain masses of the antibodies relative to the reference material NIST-mAb 8671. Already half of the antibodies could be identified based solely on these two parameters. In addition, we developed two complementary peptide mass fingerprinting methods with MALDI-TOF-MS that can be performed in 60 min and had a combined sequence coverage of over 80\%. One method is based on the partial acidic hydrolysis of the protein by 5 mM of sulfuric acid at 99 degrees C. Furthermore, we established a fast way for a tryptic digest without an alkylation step. We were able to show that the distinction of clones is possible simply by a brief visual comparison of the mass spectra. In this work, two clones originating from the same immunization gave the same fingerprints. Later, a hybridoma sequencing confirmed the sequence identity of these sister clones. In order to automate the spectral comparison for larger libraries of antibodies, we developed the online software ABID 2.0. This open-source software determines the number of matching peptides in the fingerprint spectra. We propose that publications and other documents critically relying on monoclonal antibodies with unknown amino acid sequences should include at least one antibody fingerprint. By fingerprinting an antibody in question, its identity can be confirmed by comparison with a library spectrum at any time and context.}, language = {en} } @article{KunyuJuangSchachneretal.2021, author = {Kunyu, David Khisoni and Juang, Linda P. and Schachner, Maja Katharina and Schwarzenthal, Miriam}, title = {Discrimination among youth of immigrant descent in Germany}, series = {Zeitschrift f{\"u}r Entwicklungspsychologie und p{\"a}dagogische Psychologie}, volume = {52}, journal = {Zeitschrift f{\"u}r Entwicklungspsychologie und p{\"a}dagogische Psychologie}, number = {3-4}, publisher = {Hogrefe}, address = {G{\"o}ttingen}, issn = {0049-8637}, doi = {10.1026/0049-8637/a000231}, pages = {88 -- 102}, year = {2021}, abstract = {Ethnic discrimination has a negative impact on the socioemotional, behavioral, relational, and academic adjustment ofadolescents, while belonging with classmates, teachers, heritage, and national group may promote positive socioemotional and academicadjustment. We investigate (1) whether greater discrimination by peers and a lower sense of belonging with classmates, teachers, heritagegroup, and national group are associated with lower socioemotional and academic adjustment of adolescents of immigrant descent inGermany; and (2) whether a sense of belonging with these different sources acts as a protective factor lowering the negative effects ofdiscrimination on adjustment. Our sample included 439 7th-grade adolescents (51\% female,Mage= 12.4 years) of immigrant descent from15 Berlin secondary schools. Results showed that higher discrimination was related to greater physiological stress, depressive symptoms,and disruptive school behavior. Higher heritage (but not national) identity, a higher sense of belonging with classmates and with teacherswere associated with better socioemotional and academic adjustment. An examination of interaction effects between discrimination andforms of belonging on adjustment revealed that, while the association between discrimination and poorer adjustment weakened for thosewith higher heritage identity, the association between discrimination and physiological stress increased for those with higher teacherrelatedness. We conclude that heritage identity (but not national identity or sense of belonging with classmates) can indeed be a protectivefactor against the negative effects of discrimination for adolescents of immigrant descent in Germany. Even though belonging with teachersmay exacerbate discrimination effects, further investigation with longitudinal data is needed. The findings underline the important role ofheritage ties among adolescents of immigrant descent as a source of adjustment, especially in light of discrimination experiences.}, language = {en} }