@phdthesis{Sentanoe2024, author = {Sentanoe, Stewart}, title = {VMIaaS: Virtual Machine Introspection as a Service}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-15027}, school = {Universit{\"a}t Passau}, pages = {vi, 121 Seiten}, year = {2024}, abstract = {In this digital era, communication in the digital world is becoming part of our daily lives. One key technology that becomes part of this digital transformation is cloud computing. It allows users to have a running system as a virtual machine (VM) on the cloud without owning a physical server. Unfortunately, adversaries can also use those systems to conduct criminal activities. Therefore, developing a method to extract evidence from those systems is also necessary. One way is through digital forensics, and one method to do digital forensics of a VM is using virtual machine introspection (VMI). However, VMI has yet to be made available by any public cloud provider. This thesis addresses this issue by introducing methods for deploying VMI on public cloud providers. Four main challenges have to be solved. Firstly, VMI requires access to the hypervisor, which practically can access all VMs running on the same server. This leads to security and privacy issues where customers can introspect each other VMs. To solve this problem, this thesis introduces KVMIveggur, a versatile access control of VMI. It comes with different options that every customer can choose from based on their needs. Secondly, VMI introduces overhead to the running VM. This is because most of the introspection mechanisms perform data access to the monitored VM. Performing data access on a running VM can cause data inconsistency. Hence, pausing the VM before executing the data access is better. However, when the VM pausing frequency is high, it will affect the performance of the monitored VM. The current state-of-the-art techniques use caching to reduce the VM pausing frequency. However, it faces a problem: the cached data may be outdated compared to the actual data. Therefore, this thesis introduces VMIFresh, a better caching mechanism. We leverage both active and passive tracing mechanisms to ensure high performance and consistency of the data (freshness). Thirdly, many state-of-the-art VMI libraries and applications run perfectly only on Intel processors because Intel CPUs provide the best hardware support for VMI. However, AMD and ARM processors are getting more popular in cloud computing. Thus, it is necessary to retrofit VMI capabilities to support AMD and ARM processors. This thesis describes the requirements to employ VMI on AMD and ARM processors. We also provide the implementation of those requirements. Finally, to do introspection using VMI, it is crucial to have proper symbol information (layout and location of data structures) of the introspected operating system (OS) and user applications. While many existing VMI approaches concentrate primarily on analyzing OS data structures, analyzing user application data often receives no attention. In our approach, we address this gap by focussing on application-level introspection. We have identified several use cases that require this kind of introspection. We focus on cryptographic key extraction for two specific instances: secure shell (SSH) and transport layer security (TLS) by leveraging the power of machine learning techniques to locate those keys in the main memory effectively and efficiently. After we had solved those challenges, we combined a couple of our approaches and introduced two VMI applications: Sarracenia and VMIGuard. Sarracenia is a deception technology that tracks activities done on an SSH session. The main goal of Sarracenia is to attract adversaries away from the production system and learn about their behavior. On the other hand, VMIGuard also monitors the SSH traffic. But, it specifically monitors the activity of any git-related activities. The main goal of VMIGuard is to ensure the integrity of the hosted data from any internal malicious actor.}, subject = {Cloud Computing}, language = {en} } @phdthesis{Ghaffar2024, author = {Ghaffar, Abdul Muqeet}, title = {Understanding Individuals' Willingness for Prosocial Data Disclosure: Exploring Antecedents and Investigating Strategies for its Promotion}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-15001}, school = {Universit{\"a}t Passau}, pages = {iv, 94 Seiten}, year = {2024}, abstract = {Privacy research has traditionally focused on understanding individuals' behavior in disclosing personal data by assuming that individuals disclose their data mainly out of self-interest. However, in many contexts, individuals disclose their data primarily for the benefit of others and society, thereby showing a form of prosocial behavior. This dissertation conceptualizes these types of data disclosure as prosocial data disclosures and argues that existing privacy research frameworks, such as the privacy calculus, have not been sufficiently applied in privacy research and need to be reevaluated to fully capture the complexities of prosocial data disclosures. Despite the growing relevance of understanding individuals' willingness for prosocial data disclosures, existing research in this field is limited. This dissertation consists of four essays that seek to deepen the understanding of the underlying decision-making processes of individuals by exploring the antecedents and investigating strategies that promote prosocial data disclosure. By employing different research methods, including systematic literature reviews, qualitative and quantitative surveys, interviews, workshops, and conjoint analysis, this dissertation contributes to the identification of the multifaceted antecedents of prosocial data disclosure which can be classified into different drivers and barriers. Furthermore, by integrating insights from different disciplines such as behavioral economics, social psychology, and information systems research, this dissertation provides empirical evidence for the use of message framing and the deliberate emphasis on impact uncertainty as two promising strategies in promoting prosocial data disclosure. The findings derived from all four essays inform privacy research and prosocial behavior research about the need for sophisticated theories that are capable of better capturing the complexities of prosocial data disclosure. Additionally, the findings offer practical implications for designing ethically responsible data disclosure practices while respecting individual privacy rights.}, language = {en} } @phdthesis{Masselus2024, author = {Masselus, Lise}, title = {Evaluating Poverty Alleviation: Essays on Microfinance, Energy Access and Limits to the Gold Standard in Empirical Economics}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14981}, school = {Universit{\"a}t Passau}, pages = {145 Seiten}, year = {2024}, abstract = {In my dissertation, I combine topical contributions on microfinance and energy access, two prevalent poverty alleviation policies, with methodological contributions on how empirical economics research can contribute to effective policymaking. Chapter 1 reviews the existing experimental evidence on microfinance. We use this deep literature to highlight challenges in generalizing from empirical research. Chapter 2 and 3 provide empirical insights on the energy access-poverty nexus. We study the long-term adoption of grid electrification and evaluate whether productive use can foster adoption and impact. Chapter 4 addresses data quality, an essential yet often overlooked element in research and policymaking. This introduction provides a general overview on microfinance, energy access, and methodological critiques on common practices in empirical economics research. [from the introduction]}, language = {en} } @book{Gerhold2023, author = {Gerhold, Maximilian}, title = {Anwaltliche Berufsaus{\"u}bung im Dienste des Rechtsstaats : eine grundrechtsdogmatische deutsch-franz{\"o}sische Studie}, publisher = {Mohr Siebeck}, address = {T{\"u}bingen}, isbn = {978-3-16-162296-0}, doi = {10.1628/978-3-16-162296-0}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-12775}, publisher = {Universit{\"a}t Passau}, pages = {XXIX, 552 Seiten}, year = {2023}, abstract = {Rechtsanw{\"a}lte haben rechtsordnungs{\"u}bergreifend eine wichtige rechtsstaatliche Funktion. Doch anders als die richterliche Unabh{\"a}ngigkeit, die in den europ{\"a}ischen wie mitgliedstaatlichen Verfassungstexten ausdr{\"u}cklich erw{\"a}hnt wird, gilt dies f{\"u}r Rechtsanw{\"a}lte und die Rechtsanwaltschaft als Institution zumeist nicht. Der berufsfreiheitliche und verfassungsgerichtliche Schutz anwaltlicher Berufsaus{\"u}bung in Deutschland kennt keine Entsprechung in Frankreich, wo dieser bislang der berufsst{\"a}ndischen Selbstverwaltung {\"u}berantwortet ist. Der Autor vermisst die anwaltliche Berufsfreiheit im deutschen Verfassungsrecht neu. Diese stellt sich als dienende Freiheitsgew{\"a}hrleistung dar. Zugleich werden erstmals grundrechtliche Maßst{\"a}be f{\"u}r die Regulierung des Anwaltsberufs in Frankreich aufgezeigt. Der Grundrechtsvergleich l{\"a}sst als gemeinsame Elemente die Fremdn{\"u}tzigkeit und Normgepr{\"a}gtheit der anwaltlichen Grundrechte hervortreten. Die Arbeit ist 2023 mit dem Dissertationspreis »Prix des affaires« der Deutsch-Franz{\"o}sischen Hochschule und dem Promotionspreis des Vereins der Freunde und F{\"o}rderer der Rechtswissenschaften an der Universit{\"a}t Passau e.V. ausgezeichnet worden.}, language = {de} } @book{Dick2022, author = {Dick, Mirjam}, title = {Vernetzung statt Addition}, publisher = {Gabriele Schaefer Verlag}, address = {Herne}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14369}, publisher = {Universit{\"a}t Passau}, pages = {448 Seiten}, year = {2022}, abstract = {Angehende Lehrkr{\"a}fte erwerben im Rahmen ihres Studiums fachdidaktisches und fachwissenschaftliches Professionswissen, aber nur selten erhalten sie systematische Gelegenheiten, diese disziplin{\"a}r und fragmentarisch gelehrten Bereiche zu vernetzen. Es wird angenommen, dass durch de-fragmentierende Lehr-Lernarrangements die Studierenden dabei unterst{\"u}tzt werden k{\"o}nnen, ein dynamisches mentales Modell von Fachunterricht aufzubauen, das tr{\"a}gem Wissen vorbeugt und synergetisches Lernen, koh{\"a}rentes Wissen sowie eine erh{\"o}hte Reflexionsf{\"a}higkeit f{\"o}rdert. Empirisch ungekl{\"a}rt ist aber bisher, was konkret Gelingensbedingungen kognitiver Vernetzung in der Lehrerbildung sind und wie sich der Erfolg vernetzter Lehre messen l{\"a}sst. Am Beispiel der Vernetzung von Literaturdidaktik und Literaturwissenschaft in der Deutschlehrerbildung konnte in vorliegender Studie gezeigt werden, dass durch ein Treatment, in welchem systematisch vernetzte Hinweisreize (sog. de-fragmentierende Prompts) eingesetzt wurden, eine komplexe, vernetzte Problemstellung (Aufgabenkonstruktion) besser gel{\"o}st werden konnte als in der Kontrollgruppe. Mit der fachlichen Spezifizierung auf das Themenfeld Textverstehen und Aufgabenkonstruktion wurden zwei f{\"u}r zuk{\"u}nftige Deutschlehrkr{\"a}fte zentrale Professionsfacetten adressiert, die beide bez{\"u}glich ihrer Binnenstrukturierung und der diesbez{\"u}glichen Kompetenzerwerbsforschung noch Desiderate aufweisen. Hinsichtlich des Bereichs Textverstehen konnte ein aus fachspezifischer Perspektive vielversprechendes Modell literarischer Kompetenz auf semiotischer Grundlage (Schilcher \& Pissarek, 2015) in diesem Kontext erstmals im hochschulischen Vermittlungsprozess empirisch untersucht werden. Hier konnten insbesondere hinsichtlich der Kategorien Raum, Figur und Handlung positive Effekte auf die Textverstehensleistung Studierender festgestellt werden. Eine grunds{\"a}tzliche {\"U}berlegenheit des literatursemiotischen Modells konnte aber nicht best{\"a}tigt werden. Die Befunde weisen darauf hin, dass das literatursemiotische Modell hinsichtlich einiger zentraler Teilkompetenzen im Textverstehen f{\"o}rderlich sein kann, dass die Studierenden aber im Professionalisierungsprozess in diesem Bereich wom{\"o}glich noch gezielterer F{\"o}rderung bed{\"u}rfen, um hier Expertise aufzubauen. Die Daten best{\"a}rken hinsichtlich der Erforschung vernetzter Lehrerbildung die Annahme, dass de-fragmentierende Prompts Wirkungsfaktoren bei der Vernetzung professionellen Wissens darstellen k{\"o}nnen.}, language = {de} } @phdthesis{Klumpp2024, author = {Klumpp, Lorenz}, title = {Populismus und Medien - Visuelle Darstellungen politischer Akteure auf Magazincovern}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14349}, school = {Universit{\"a}t Passau}, pages = {128 Seiten}, year = {2024}, abstract = {Bislang beschr{\"a}nkte sich die inhaltsanalytische Populismusforschung {\"u}berwiegend auf textuelle Botschaften, wie etwa Parteiprogramme, Zeitungsartikel oder Online Foren. Erst seit wenigen Jahren werden zunehmend auch visuell vermittelte Botschaften im Zusammenhang mit Populismus Gegenstand politik- und kommunikationswissenschaftlicher Untersuchung. Durch eine Verkn{\"u}pfung des Ansatzes der Visuellen Politik mit einer Konzeptualisierung von Populismus als Kommunikationsph{\"a}nomen versteht sich die vorliegende Dissertation als Beitrag zur Erforschung einer Visuellen Politik des Populismus (Moffitt 2022). Empirisch nimmt der Autor die Medienebene in den Fokus und konzentriert sich hierbei auf die ikonographisch-ikonologische Analyse von Magazincovern. So werden einerseits visuelle Darstellungen populistischer Akteure auf den Titelseiten des Nachrichtenmagazins Der Spiegel (Klumpp 2020, 2022) sowie andererseits visuelle Darstellungen des politischen Personals insgesamt auf Covern von Der Spiegel und Compact mittels Bildtypenanalyse (Klumpp 2023) untersucht.}, language = {de} } @article{BleyerLaux2012, author = {Bleyer, Bernhard and Laux, Bernhard}, title = {Anw{\"a}lte der {\"O}ffentlichkeit. {\"U}ber Zivilgesellschaft, Bef{\"a}higungsarbeit und den Auftrag der Kirchen}, series = {Ethik und Gesellschaft}, volume = {2012}, journal = {Ethik und Gesellschaft}, number = {2}, address = {T{\"u}bingen}, doi = {10.15475/aozbak.2012}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14297}, pages = {1 -- 26}, year = {2012}, abstract = {{\"O}ffentliche Debatten stehen immer in der Gefahr betroffene Gruppen auszuschließen. Die Regeln des demokratisch orientierten, kommunikativen Zusammen- und Auseinandersetzens schließen jedoch die Anforderung einer kommunikativen Inklusion und Achtung gegen{\"u}ber allen Betroffenen ein. Um diese erf{\"u}llen zu k{\"o}nnen, braucht es eine vorg{\"a}ngige Praxis, die f{\"u}r die Offenheit der {\"O}ffentlichkeit aktiv ist und zum Handeln und Diskurs erm{\"a}chtigt. Die Handlungserm{\"a}chtigung hat eine strukturelle und eine personale Dimension. Erst wenn die Beteiligungsm{\"o}glichkeiten f{\"u}r alle Kommunikationsf{\"a}higen und die Vertreter der Nicht-Kommunikationsf{\"a}higen faktisch existieren, kann die Auseinandersetzung zu einer {\"o}ffentlichen, kann die {\"o}ffentliche Auseinandersetzung tats{\"a}chlich eine demokratische werden. Kirche ist in Wahrnehmung der »kommunikativen Diakonie« als Bef{\"a}higungsakteur gefordert. Sie kommt dabei nicht umhin, auch ihre innere {\"O}ffentlichkeit zu entfalten.}, language = {de} } @misc{Bleyer2013, author = {Bleyer, Bernhard}, title = {Markus Vogt, Prinzip Nachhaltigkeit. Ein Entwurf aus theologisch-ethischer Perspektive}, series = {Theologie und Philosophie 88}, volume = {88 (2013)}, journal = {Theologie und Philosophie 88}, number = {2}, publisher = {Herder}, address = {Freiburg}, doi = {10.15475/mvpn.2013}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14411}, pages = {316 -- 320}, year = {2013}, abstract = {Rezension zu Vogt: Prinzip Nachhaltigkeit, erschienen in zweiter Auflage 2010 bei oekom (978-3-86581-091-5)}, language = {de} } @article{BleyerPawlik2013, author = {Bleyer, Bernhard and Pawlik, Michael}, title = {In dubio pro vita - oder doch nicht? Zur ethischen Rechtfertigung der Therapiedurchf{\"u}hrung bei unbekanntem Patientenwillen}, series = {Bayerisches {\"A}rzteblatt}, volume = {68 (2013)}, journal = {Bayerisches {\"A}rzteblatt}, number = {12}, publisher = {Bayerische Landes{\"a}rztekammer}, address = {M{\"u}nchen}, doi = {10.15475/idpvodn.2013}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14316}, pages = {664 -- 666}, year = {2013}, abstract = {Die Rede vom Grundprinzip Leben ist gerechtfertigt, weil das Leben einer Person die Bedingung der M{\"o}glichkeit zur Inanspruchnahme aller anderen ethischen Prinzipien darstellt. F{\"u}r die medizinische Behandlungssituation von einwilligungsunf{\"a}higen Patienten, deren Wille unbekannt bleibt, ist diese falltypologische Vorrangstellung bei bestehender medizinischer Indikation gegeben. Das medizinethische Postulat, dem die Empfehlungen der Bundes{\"a}rztekammer zum Umgang mit Vorsorgevollmacht und Patientenverf{\"u}gung f{\"u}r Notfallsituationen folgen, steht auch zu Recht am Ende des vierten Schrittes im Borasio-Heßler-Wiesing-Entscheidungsdiagramm. Der behandelnde Arzt muss bei einem Patienten, dessen Willen nicht ermittelt werden kann, eine indizierte Therapie durchf{\"u}hren. Welches Ziel diese Therapie verfolgt, bleibt seinem fachlichen Urteil {\"u}berlassen. In diesem Fall gilt: im Zweifel f{\"u}r das Leben, im Zweifel f{\"u}r die Therapie.}, language = {de} } @misc{Bleyer2009, author = {Bleyer, Bernhard}, title = {Karin Scheiber, Vergebung. Eine systematisch-theologische Untersuchung}, series = {Geist und Leben. Zeitschrift f{\"u}r christliche Spiritualit{\"a}t 2/2009}, volume = {2009}, journal = {Geist und Leben. Zeitschrift f{\"u}r christliche Spiritualit{\"a}t 2/2009}, number = {2}, publisher = {Echter Verlag}, address = {W{\"u}rzburg}, doi = {10.15475/ksvstu.2009}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14384}, pages = {157 -- 158}, year = {2009}, abstract = {Rezension zu Scheiber: Vergebung, erschienen 2006 bei Mohr Siebeck (978-3-16-148893-1)}, language = {de} } @misc{Bleyer2011, author = {Bleyer, Bernhard}, title = {Annemarie Gethmann-Siefert/Felix Thiele (Hrsg.), {\"O}konomie und Medizinethik}, series = {Ethica. Wissenschaft und Verantwortung 19}, volume = {19 (2011)}, journal = {Ethica. Wissenschaft und Verantwortung 19}, number = {2}, publisher = {Resch Verlag}, address = {Innsbruck}, doi = {10.15475/gsaftom.2011}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-14402}, pages = {182 -- 185}, year = {2011}, abstract = {Rezension zu Gethmann-Siefert/Thiele(Hgg.): {\"O}konomie und Medizinethik, in zweiter Auflage erschienen 2011 bei Wilhelm Fink (978-3-7705-5090-6)}, language = {de} } @article{DeinerFeldmeierFraseretal.2023, author = {Deiner, Adina and Feldmeier, Patric and Fraser, Gordon and Schweikl, Sebastian and Wang, Wengran}, title = {Automated test generation for SCRATCH programs}, series = {Empirical Software Engineering}, volume = {28}, journal = {Empirical Software Engineering}, number = {3}, publisher = {Springer Nature}, address = {Berlin}, doi = {10.1007/s10664-022-10255-x}, url = {http://nbn-resolving.de/urn:nbn:de:101:1-2023091108301581209964}, pages = {1 -- 63}, year = {2023}, abstract = {The importance of programming education has led to dedicated educational program- ming environments, where users visually arrange block-based programming constructs that typically control graphical, interactive game-like programs. The SCRATCH programming environment is particularly popular, with more than 90 million registered users at the time of this writing. While the block-based nature of S CRATCH helps learners by preventing syntactical mistakes, there nevertheless remains a need to provide feedback and support in order to implement desired functionality. To support individual learning and classroom settings, this feedback and support should ideally be provided in an automated fashion, which requires tests to enable dynamic program analysis. In prior work we introduced W HISKER , a framework that enables automated testing of S CRATCH programs. However, creating these automated tests for S CRATCH programs is challenging. In this paper, we therefore investigate how to automatically generate W HISKER tests. Generating tests for S CRATCH raises important challenges: First, game-like programs are typically randomised, leading to flaky tests. Second, S CRATCH programs usually consist of animations and interactions with long delays, inhibiting the application of classical test generation approaches. Thus, the new application domain raises the question of which test generation technique is best suited to produce high coverage tests capable of detecting faulty behaviour. We investigate these questions using an extension of the W HISKER test framework for automated test generation. Evaluation on common programming exercises, a random sample of 1000 S CRATCH user programs, and the 1000 most popular S CRATCH programs demonstrates that our approach enables W HISKER to reliably accelerate test executions, and even though many SCRATCH programs are small and easy to cover, there are many unique challenges for which advanced search-based test generation using many-objective algorithms is needed in order to achieve high coverage.}, language = {en} } @article{Narh2023, author = {Narh, John}, title = {The resource curse and the role of institutions revisited}, series = {Environment, Development and Sustainability}, volume = {27}, journal = {Environment, Development and Sustainability}, publisher = {Springer Nature}, address = {Berlin}, doi = {10.1007/s10668-023-04279-6}, url = {http://nbn-resolving.de/urn:nbn:de:101:1-2024030609203689018522}, pages = {8187 -- 8207}, year = {2023}, abstract = {Many studies have shown that natural resource abundant countries with strong institutions tend to escape the resource curse. Institutional quality has been examined using broad indices of rule of law, the rate of murder, the share of the shadow economy and provision of public goods. Nonetheless, we need to locate the specific institutional conditions under which the curse manifests since some "rule of law" countries like Nigeria and Angola are generally classified as resource cursed. In this review, I argue that managing and distributing natural resource wealth through a centralised planning strategy and lack of a binding long-term national development plan are institutional conditions that encourage government unaccountability as they do not restrict policy makers against discretionary distribution of natural resource windfall, rent seeking, clientelism and corruption which contribute to poor economic development and growth. Also, inadequate regulations on how to address the potential or actual impacts of natural resource extraction on the livelihood of local people and the environment tend to precipitate grievance-induced resource conflict.}, language = {en} } @article{ErtelDonigEckletal.2023, author = {Ertel, Florence and Donig, Simon and Eckl, Markus and Gassner, Sebastian and G{\"o}ler, Daniel and Rehbein, Malte}, title = {Using web archives for an explorative study of the web presence of German parties during the European election 2019}, series = {Quality \& Quantity}, volume = {58}, journal = {Quality \& Quantity}, number = {1}, publisher = {Springer Nature}, address = {Berlin}, doi = {10.1007/s11135-023-01654-3}, url = {http://nbn-resolving.de/urn:nbn:de:101:1-2023082609050515725791}, pages = {603 -- 625}, year = {2023}, abstract = {In the digital age, political science is faced with a shift of election campaigns and politi- cal discourse to digital or virtual arenas. Because the internet is a highly volatile medium and online content can become inaccessible after the campaign season, new challenges for research arise as well as the need for the preservation of online content. Moreover, the sheer volume of data researchers have to deal with has reached levels where traditional methods are being highly challenged. This paper puts forth a web harvesting workflow with a strong focus on granular extraction of unstructured information (publication dates) for automated analysis. As our approach is methodological, we would like to point out the benefits that researches in political science may draw from adapting our methodology. We demonstrate this by analysing an event-based web crawl of German parties participating in the election campaign for the European Parliamentary Election in 2019. We employ distant reading methods to generate topic models, which are subsequently evaluated by hermeneutic analysis of a subset of the data.}, language = {en} } @article{PiwoniMussotter2023, author = {Piwoni, Eunike and Mußotter, Marlene}, title = {The evolution of the civic-ethnic distinction as a partial success story: Lessons for the nationalism-patriotism distinction}, series = {Nations and Nationalism}, volume = {29}, journal = {Nations and Nationalism}, number = {3}, publisher = {Wiley}, address = {Hoboken}, doi = {10.1111/nana.12944}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-16266}, pages = {906 -- 921}, year = {2023}, abstract = {This article brings, for the first time, two of the most pivotal distinctions in nationalism studies into extended dialogue: the civic-ethnic distinction (CED) and the nationalism-patriotism distinction (NPD). By reviewing both the evolution of those distinctions over the previous decades and the ways in which they have been used in quantitative empirical research, we argue that the CED's evolution has been a partial success story, whereas discourse around the NPD has not seen substantial development. Despite lingering inconsistencies, researchers drawing on the CED have been successful in addressing different lines of critique and in using the CED as a heuristic for investigating notions of nationhood as expressed in public perceptions. In contrast, there has been only limited dialogue between theoretical and empirical approaches to the NPD. The article illustrates how research drawing on the NPD could profit from the CED's evolution. We close by providing a conceptual roadmap to guide the path towards more terminological clarity and to construct more theoretically robust measures for nationalism and patriotism. We specifically suggest that nationalism and patriotism should be consistently understood as ideal types that citizens can simultaneously hold to varying degrees.}, language = {en} } @article{Schwartz2023, author = {Schwartz, Niels}, title = {Topology of closure systems in algebraic lattices}, series = {Algebra universalis}, volume = {84}, journal = {Algebra universalis}, number = {2}, publisher = {Springer Nature}, address = {Berlin}, doi = {10.1007/s00012-023-00815-7}, url = {http://nbn-resolving.de/urn:nbn:de:101:1-2023090808111682406614}, pages = {1 -- 33}, year = {2023}, abstract = {Algebraic lattices are spectral spaces for the coarse lower topology. Closure systems in algebraic lattices are studied as subspaces. Connections between order theoretic properties of a closure system and topological properties of the subspace are explored. A closure system is algebraic if and only if it is a patch closed subset of the ambient algebraic lattice. Every subset X in an algebraic lattice P generates a closure system〈X〉P . The closure system〈Y 〉P generated by the patch closure Y of X is the patch closure of〈X〉P. If X is contained in the set of nontrivial prime elements of P then〈X〉P is a frame and is a coherent algebraic frame if X is patch closed in P. Conversely, if the algebraic lattice P is coherent then its set of nontrivial prime elements is patch closed.}, language = {en} } @article{MuenchRutterStumpf2023, author = {M{\"u}nch, Miriam and Rutter, Ignaz and Stumpf, Peter}, title = {Partial and Simultaneous Transitive Orientations via Modular Decompositions}, series = {Algorithmica}, volume = {86}, journal = {Algorithmica}, number = {4}, publisher = {Springer Nature}, address = {Berlin}, doi = {10.1007/s00453-023-01188-y}, url = {http://nbn-resolving.de/urn:nbn:de:101:1-2024022914111908687000}, pages = {1263 -- 1292}, year = {2023}, abstract = {A natural generalization of the recognition problem for a geometric graph class is the problem of extending a representation of a subgraph to a representation of the whole graph. A related problem is to find representations for multiple input graphs that coin- cide on subgraphs shared by the input graphs. A common restriction is the sunflower case where the shared graph is the same for each pair of input graphs. These problems translate to the setting of comparability graphs where the representations correspond to transitive orientations of their edges. We use modular decompositions to improve the runtime for the orientation extension problem and the sunflower orientation problem to linear time. We apply these results to improve the runtime for the partial represen- tation problem and the sunflower case of the simultaneous representation problem for permutation graphs to linear time. We also give the first efficient algorithms for these problems on circular permutation graphs.}, language = {en} } @article{TrautschHerboldGrabowski2023, author = {Trautsch, Alexander and Herbold, Steffen and Grabowski, Jens}, title = {Are automated static analysis tools worth it? An investigation into relative warning density and external software quality on the example of Apache open source projects}, series = {Empirical Software Engineering}, volume = {28}, journal = {Empirical Software Engineering}, number = {3}, publisher = {Springer Nature}, address = {Berlin}, doi = {10.1007/s10664-023-10301-2}, url = {http://nbn-resolving.de/urn:nbn:de:101:1-2023091108203018898026}, pages = {1 -- 21}, year = {2023}, abstract = {Automated Static Analysis Tools (ASATs) are part of software development best practices. ASATs are able to warn developers about potential problems in the code. On the one hand, ASATs are based on best practices so there should be a noticeable effect on software quality. On the other hand, ASATs suffer from false positive warnings, which developers have to inspect and then ignore or mark as invalid. In this article, we ask whether ASATs have a measurable impact on external software quality, using the example of PMD for Java. We investigate the relationship between ASAT warnings emitted by PMD on defects per change and per file. Our case study includes data for the history of each file as well as the differences between changed files and the project in which they are contained. We investigate whether files that induce a defect have more static analysis warnings than the rest of the project. Moreover, we investigate the impact of two different sets of ASAT rules. We find that, bug inducing files contain less static analysis warnings than other files of the project at that point in time. However, this can be explained by the overall decreasing warning density. When compared with all other changes, we find a statistically significant difference in one metric for all rules and two metrics for a subset of rules. However, the effect size is negligible in all cases, showing that the actual difference in warning density between bug inducing changes and other changes is small at best.}, language = {en} } @article{FruehwirthProchno2023, author = {Fr{\"u}hwirth, Lorenz and Prochno, Joscha}, title = {H{\"o}lder's inequality and its reverse — a probabilistic point of view}, series = {Mathematische Nachrichten}, volume = {296}, journal = {Mathematische Nachrichten}, number = {12}, publisher = {Wiley}, address = {Hoboken}, doi = {10.1002/mana.202200411}, url = {http://nbn-resolving.de/urn:nbn:de:101:1-2023062315175042989607}, pages = {5493 -- 5512}, year = {2023}, abstract = {In this article, we take a probabilistic look at H{\"o}lder's inequality, considering the ratio of terms in the classical H{\"o}lder inequality for random vectors in ℝ𝑛. We prove a central limit theorem for this ratio, which then allows us to reverse the inequality up to a multiplicative constant with high probability. The models of randomness include the uniform distribution on 𝓁𝑛𝑝 balls and spheres. We also provide a Berry-Esseen-type result and prove a large and a moderate deviation principle for the suitably normalized H{\"o}lder ratio.}, language = {en} } @article{Sommer2023, author = {Sommer, Tim}, title = {Romantic objects, Victorian collections : scribal relics and the authorial body}, series = {Literature Compass}, volume = {21}, journal = {Literature Compass}, number = {1-3}, publisher = {Wiley}, address = {Hoboken}, doi = {10.1111/lic3.12703}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:739-opus4-16248}, pages = {10 Seiten}, year = {2023}, abstract = {Over the course of the nineteenth century, literary manuscripts came to be seen as tangible evidence of the creative process and as a key to the personality of the author. The material traces of writing were understood to outlive their creators and promise to resurrect the authorial body through the magic of the relic. This article reconstructs how authorial script gradually transformed into a collectible object pursued as a memento and a commodity. Letters, drafts, and fair copies by major modern writers found their way into the collections of British aristocrats and American industrialists at the same time that hunting for literary autographs diversified into a middle-class pursuit. Surveying recent scholarship on nineteenth-century collecting and material culture, the essay offers a condensed cultural history of the literary manuscript as a collectible and draws attention to how collectors and collecting feature in fictional texts of the period. It focuses on the artefactual mobility and custodial afterlives of Romantic papers in Victorian literature and culture, exploring a form of collecting which crossed boundaries between periods and national literary traditions.}, language = {en} }