@misc{AntonKoeberleLaschewsky1993, author = {Anton, Peter and K{\"o}berle, Peter and Laschewsky, Andr{\´e}}, title = {Recent developments in the field of micellar polymers}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17263}, year = {1993}, abstract = {This article describes recent achievements in the field of micellar polymers, or polysoaps. Taking advantage of zwitterionic model polymers, systematic variations of the molecular architecture have provided an improved understanding of the relationship between the molecular structure of the polymers and their key properties such as surface activity and solubilization capacity. Useful rules are established, which take into account much of the previous data in the literature.}, language = {en} } @misc{AntonLaschewsky1993, author = {Anton, Peter and Laschewsky, Andr{\´e}}, title = {Zwitterionic polysoaps with reduced density of surfactant side groups}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17301}, year = {1993}, abstract = {Several zwitterionic polymers were prepared by radical homopolymerization of surfactant monomers which bear diallyl, diene or vinylcyclopropane moieties. These polymer systems were complemented by alternating copolymers of appropriate zwitterionic vinyl compounds. Thus, polymers with reduced (as compared with simple vinylic homopolymers, or statistical copolymers) and well defined density of surfactant side groups are obtained. The solubilities found for these polymers are dominated by polymer geometry rather than by the balance of hydrophilic and hydrophobic fragments, thus corroborating a main-chain spacer model proposed recently. All water-soluble polymers exhibit characteristic features of classical polysoaps, as shown by surface tension measurements and by solubilization of hydrophobic dyes. In contrast, the water-insoluble copolymers are capable to form stable monolayers at the air-water interface.}, language = {en} } @misc{AntonLaschewsky1994, author = {Anton, Peter and Laschewsky, Andr{\´e}}, title = {Solubilization by polysoaps}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17327}, year = {1994}, abstract = {The aqueous solubilization power of several series of micellar homopolymers and copolymers (polysoaps) is investigated. Using five insoluble or poorly water-soluble dyes, comparisons of the capacities are made with respect ot the influence of structural variables such as the polymer backbone, the polymer geometry, the comonomer content, and the charge of the hydrophilic group. Some guidelines for polysoap structures suited for efficient solubilization are established. Noteworthy is that the solubilization capacities of the polysoaps are neither linked to the ability to reduce the surface tension of water, nor to the polarity of the solubilization sites deduced from spectroscopic probes.}, language = {en} } @misc{AntonLaschewsky1991, author = {Anton, Peter and Laschewsky, Andr{\´e}}, title = {Polysoaps via alternating olefin/SO2 copolymers}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17216}, year = {1991}, abstract = {Contents: Introduction Results and discussion - Monomers studied - Monomer properties - Polymerization, copolymer composition and general properties - Polymer properties in aqueous solution Conclusion Experimental part - Materials - Copolymerization with S02 (typical procedure) - Methods}, language = {en} } @misc{AntonLaschewskyWard1995, author = {Anton, Peter and Laschewsky, Andr{\´e} and Ward, M. D.}, title = {Solubilization control by redox-switching of polysoaps}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17336}, year = {1995}, abstract = {Reversible changes in the self-organization of polysoaps may be induced by controlling their charge numbers via covalently bound redox moieties. This is illustrated with two viologen polysoaps, which in response to an electrochemical stimulus, change their solubility and aggregation in water, leading from homogeneously dissolved and aggregated molecules to collapsed ones and vice verse. Using the electrochemical quartz crystal microbalance (EQCM), it could be shown that the reversibility of this process is better than 95\% in 16 cycles.}, language = {en} } @article{Anzi2016, author = {Anzi, Menashe}, title = {ʿAgunot and Converts to Islam}, series = {PaRDeS : Journal of the Association of Jewish Studies [22 (2016)] = Muslim-Jewish Dialogue}, volume = {22}, journal = {PaRDeS : Journal of the Association of Jewish Studies [22 (2016)] = Muslim-Jewish Dialogue}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-370-1}, issn = {1614-6492}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-99658}, pages = {135 -- 149}, year = {2016}, abstract = {Nach der Massenemigration der jemenitischen Juden nach Israel zwischen 1948 und 1950 sind ca. 2000 Juden im Jemen zur{\"u}ckgeblieben. Viele sind danach mit Hilfe der Jewish Agency und des JDC nach Israel eingewandert. Die wenigen Zur{\"u}ckgebliebenen lebten in kleinen Gemeinden, behielten jedoch ihre religi{\"o}sen Br{\"a}uche bei. Deren Verteilung unter der muslimischen Bev{\"o}lkerung f{\"u}hrte jedoch zur Ann{\"a}herung zwischen Juden und Muslimen. Rund zehn Prozent sind zum Islam {\"u}bergetreten, teils als Einzelpersonen, teils als Gruppen. Dabei gab es etwa zwanzig F{\"a}lle von M{\"a}nnern, die zum Islam {\"u}bertraten, deren Frauen aber nach Israel auswanderten und das Judentum beibehielten. Aufgrund des Abbruchs der ehelichen Beziehung nach islamischem Recht haben sich einige Konvertiten geweigert ihren Frauen die Scheidung zu gew{\"a}hren. Dieser Beitrag geht den Bem{\"u}hungen zur Befreiung der ʿAgunot nach. Es wird gezeigt, wie j{\"u}dische und muslimische Gelehrte gemeinsam nach L{\"o}sungen suchten und Br{\"u}cken zwischen ihren Religionsgemeinschaften schlugen.}, language = {en} } @techreport{Arajaervi2017, type = {Working Paper}, author = {Araj{\"a}rvi, Noora}, title = {The Requisite Rigour in the Identification of Customary International Law}, series = {KFG Working Paper Series}, journal = {KFG Working Paper Series}, number = {6}, issn = {2509-3770}, doi = {10.25932/publishup-42074}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-420742}, pages = {27}, year = {2017}, abstract = {Over the last few decades, the methodology for the identification of customary international law (CIL) has been changing. Both elements of CIL - practice and opinio juris - have assumed novel and broader forms, as noted in the Reports of the Special Rapporteur of the International Law Commission (2013, 2014, 2015, 2016). This paper discusses these Reports and the draft conclusions, and reaction by States in the Sixth Committee of the United Nations General Assembly (UNGA), highlighting the areas of consensus and contestation. This ties to the analysis of the main doctrinal positions, with special attention being given to the two elements of CIL, and the role of the UNGA resolutions. The underlying motivation is to assess the real or perceived crisis of CIL, and the author develops the broader argument maintaining that in order to retain unity within international law, the internal limits of CIL must be carefully asserted.}, language = {en} } @techreport{Arajaervi2017, type = {Working Paper}, author = {Araj{\"a}rvi, Noora}, title = {The Rule of Law in the 2030 Agenda}, series = {KFG Working Paper Series}, journal = {KFG Working Paper Series}, number = {9}, issn = {2509-3770}, doi = {10.25932/publishup-42190}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-421906}, pages = {34}, year = {2017}, abstract = {The rule of law is the cornerstone of the international legal system. This paper shows, through analysis of intergovernmental instruments, statements made by representatives of States, and negotiation records, that the rule of law at the United Nations has become increasingly contested in the past years. More precisely, the argument builds on the process of integrating the notion of the rule of law into the Sustainable Development Goals, adopted in September 2015 in the document Transforming our world: the 2030 Agenda for Sustainable Development. The main sections set out the background of the rule of law debate at the UN, the elements of the rule of law at the goal- and target-levels in the 2030 Agenda - especially in the SDG 16 -, and evaluate whether the rule of law in this context may be viewed as a normative and universal foundation of international law. The paper concludes, with reflections drawn from the process leading up to the 2030 Agenda and the final outcome document that the rule of law - or at least strong and precise formulations of the concept - may be in decline in institutional and normative settings. This can be perceived as symptomatic of a broader crisis of the international legal order.}, language = {en} } @misc{Archer1999, author = {Archer, Clive}, title = {The EU, security and the Baltic region}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-11453}, year = {1999}, abstract = {The end of the cold war division of the Baltic Sea in 1989, and the three Baltic states' return to independence in 1991 created new opportunities for the decision-makers of the area, as well as new possibilities for fashioning security in the region. This article will examine the security debate affecting the Baltic Sea region in the post-cold war period, and in particular, the relevance of the European Union to that debate. The following section will examine various concepts of security relevant to the Baltic region; the third section looks at the EU and the Baltic area; and the last part deals with the implications that EU membership by the Baltic Sea states may have for the security of the Baltic Sea zone.}, language = {en} } @misc{Ariel2018, author = {Ariel, Yaakov S.}, title = {Ismar Schorsch: Leopold Zunz. Creativity in Adversity / [rezensiert von] Yaakov Ariel}, series = {PaRDES : Zeitschrift der Vereinigung f{\"u}r J{\"u}dische Studien e. V.}, journal = {PaRDES : Zeitschrift der Vereinigung f{\"u}r J{\"u}dische Studien e. V.}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-417918}, pages = {239 -- 241}, year = {2018}, language = {en} } @article{Ariel2018, author = {Ariel, Yaakov S.}, title = {A New Kind of Jew}, series = {PaRDeS : Zeitschrift der Vereinigung f{\"u}r J{\"u}dische Studien [23 (2017)] = JewBus, Jewish Hindus \& other Jewish Encounters with East Asian Religions}, journal = {PaRDeS : Zeitschrift der Vereinigung f{\"u}r J{\"u}dische Studien [23 (2017)] = JewBus, Jewish Hindus \& other Jewish Encounters with East Asian Religions}, number = {23}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-418-0}, issn = {1614-6492}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-408952}, pages = {133 -- 148}, year = {2018}, abstract = {The article examines Allen Ginsberg's spiritual path, and places his interest in Asian religions within larger cultural agendas and life choices. While identifying as a Jew, Ginsberg wished to transcend beyond his parents' orbit and actively sought to create an inclusive, tolerant, and permissive society where persons such as himself could live and create at ease. He chose elements from the Christian, Jewish, Native-American, Hindu, and Buddhist traditions, weaving them together into an ever-growing cultural and spiritual quilt. The poet never underwent a conversion experience or restricted his choices and freedoms. In Ginsberg's understanding, Buddhism was a universal, non-theistic religion that meshed well with an individualist outlook, and worked toward personal solace and mindfulness. He and other Jews saw no contradiction between enchantment with Buddhism and their Jewish identity.}, language = {en} } @phdthesis{Arnold2014, author = {Arnold, Anne}, title = {Modeling photosynthesis and related metabolic processes : from detailed examination to consideration of the metabolic context}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-72277}, school = {Universit{\"a}t Potsdam}, year = {2014}, abstract = {Mathematical modeling of biological systems is a powerful tool to systematically investigate the functions of biological processes and their relationship with the environment. To obtain accurate and biologically interpretable predictions, a modeling framework has to be devised whose assumptions best approximate the examined scenario and which copes with the trade-off of complexity of the underlying mathematical description: with attention to detail or high coverage. Correspondingly, the system can be examined in detail on a smaller scale or in a simplified manner on a larger scale. In this thesis, the role of photosynthesis and its related biochemical processes in the context of plant metabolism was dissected by employing modeling approaches ranging from kinetic to stoichiometric models. The Calvin-Benson cycle, as primary pathway of carbon fixation in C3 plants, is the initial step for producing starch and sucrose, necessary for plant growth. Based on an integrative analysis for model ranking applied on the largest compendium of (kinetic) models for the Calvin-Benson cycle, those suitable for development of metabolic engineering strategies were identified. Driven by the question why starch rather than sucrose is the predominant transitory carbon storage in higher plants, the metabolic costs for their synthesis were examined. The incorporation of the maintenance costs for the involved enzymes provided a model-based support for the preference of starch as transitory carbon storage, by only exploiting the stoichiometry of synthesis pathways. Many photosynthetic organisms have to cope with processes which compete with carbon fixation, such as photorespiration whose impact on plant metabolism is still controversial. A systematic model-oriented review provided a detailed assessment for the role of this pathway in inhibiting the rate of carbon fixation, bridging carbon and nitrogen metabolism, shaping the C1 metabolism, and influencing redox signal transduction. The demand of understanding photosynthesis in its metabolic context calls for the examination of the related processes of the primary carbon metabolism. To this end, the Arabidopsis core model was assembled via a bottom-up approach. This large-scale model can be used to simulate photoautotrophic biomass production, as an indicator for plant growth, under so-called optimal, carbon-limiting and nitrogen-limiting growth conditions. Finally, the introduced model was employed to investigate the effects of the environment, in particular, nitrogen, carbon and energy sources, on the metabolic behavior. This resulted in a purely stoichiometry-based explanation for the experimental evidence for preferred simultaneous acquisition of nitrogen in both forms, as nitrate and ammonium, for optimal growth in various plant species. The findings presented in this thesis provide new insights into plant system's behavior, further support existing opinions for which mounting experimental evidences arise, and posit novel hypotheses for further directed large-scale experiments.}, language = {en} } @article{Arnold2007, author = {Arnold, Holger}, title = {A linearized DPLL calculus with learning}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-15421}, year = {2007}, abstract = {This paper describes the proof calculus LD for clausal propositional logic, which is a linearized form of the well-known DPLL calculus extended by clause learning. It is motivated by the demand to model how current SAT solvers built on clause learning are working, while abstracting from decision heuristics and implementation details. The calculus is proved sound and terminating. Further, it is shown that both the original DPLL calculus and the conflict-directed backtracking calculus with clause learning, as it is implemented in many current SAT solvers, are complete and proof-confluent instances of the LD calculus.}, language = {en} } @unpublished{Arnold2009, author = {Arnold, Holger}, title = {A linearized DPLL calculus with clause learning (2nd, revised version)}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-29080}, year = {2009}, abstract = {Many formal descriptions of DPLL-based SAT algorithms either do not include all essential proof techniques applied by modern SAT solvers or are bound to particular heuristics or data structures. This makes it difficult to analyze proof-theoretic properties or the search complexity of these algorithms. In this paper we try to improve this situation by developing a nondeterministic proof calculus that models the functioning of SAT algorithms based on the DPLL calculus with clause learning. This calculus is independent of implementation details yet precise enough to enable a formal analysis of realistic DPLL-based SAT algorithms.}, language = {en} } @misc{Arnold2010, author = {Arnold, Rafael D.}, title = {Leshonot yehude Sefarad ve-ha-mizrach vesifruyotehem / Languages and literatures of Sephardic and Oriental Jews / [rezensiert von] Rafael Arnold}, number = {16}, issn = {1614-6492}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-43777}, pages = {240 -- 244}, year = {2010}, abstract = {rezensiertes Werk: Leshonot yehude Sefarad ve-ha-mizrach vesifruyotehem / Languages and literatures of Sephardic and Oriental Jews. - Jerusalem : Misgav Yerushalayim, 2009. - 484 S. [hebr.] + 434 S. [lat.], ; Ill.}, language = {en} } @article{Arthur2015, author = {Arthur, S. J.}, title = {Wolf-Rayet nebulae and the wind-interstellar medium interaction}, series = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015}, journal = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-88267}, pages = {315 -- 320}, year = {2015}, abstract = {I review our current understanding of the interaction between a Wolf-Rayet star's fast wind and the surrounding medium, and discuss to what extent the predictions of numerical simulations coincide with multiwavelength observations of Wolf-Rayet nebulae. Through a series of examples, I illustrate how changing the input physics affects the results of the numerical simulations. Finally, I discuss how numerical simulations together with multiwavelength observations of these objects allow us to unpick the previous mass-loss history of massive stars.}, language = {en} } @inproceedings{ArtsteinPoesio2006, author = {Artstein, Ron and Poesio, Massimo}, title = {Identifying reference to abstract objects in dialogue}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-10357}, year = {2006}, abstract = {In two experiments, many annotators marked antecedents for discourse deixis as unconstrained regions of text. The experiments show that annotators do converge on the identity of these text regions, though much of what they do can be captured by a simple model. Demonstrative pronouns are more likely than definite descriptions to be marked with discourse antecedents. We suggest that our methodology is suitable for the systematic study of discourse deixis.}, language = {en} } @article{Arus2017, author = {Ar{\´u}s, Eug{\`e}nia}, title = {Education through music ‒ Another way of teaching}, series = {Potsdamer Schriftenreihe zur Musikp{\"a}dagogik}, journal = {Potsdamer Schriftenreihe zur Musikp{\"a}dagogik}, number = {4}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-378-7}, issn = {2196-5080}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-399287}, pages = {139 -- 153}, year = {2017}, language = {en} } @misc{AscherChinPetzoldetal.1994, author = {Ascher, Uri M. and Chin, Hongsheng and Petzold, Linda R. and Reich, Sebastian}, title = {Stabilization of constrained mechanical systems with DAEs and invariant manifolds}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-15698}, year = {1994}, abstract = {Many methods have been proposed for the simulation of constrained mechanical systems. The most obvious of these have mild instabilities and drift problems. Consequently, stabilization techniques have been proposed A popular stabilization method is Baumgarte's technique, but the choice of parameters to make it robust has been unclear in practice. Some of the simulation methods that have been proposed and used in computations are reviewed here, from a stability point of view. This involves concepts of differential-algebraic equation (DAE) and ordinary differential equation (ODE) invariants. An explanation of the difficulties that may be encountered using Baumgarte's method is given, and a discussion of why a further quest for better parameter values for this method will always remain frustrating is presented. It is then shown how Baumgarte's method can be improved. An efficient stabilization technique is proposed, which may employ explicit ODE solvers in case of nonstiff or highly oscillatory problems and which relates to coordinate projection methods. Examples of a two-link planar robotic arm and a squeezing mechanism illustrate the effectiveness of this new stabilization method.}, language = {en} } @misc{AscherChinReich1994, author = {Ascher, Uri M. and Chin, Hongsheng and Reich, Sebastian}, title = {Stabilization of DAEs and invariant manifolds}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-15625}, year = {1994}, abstract = {Many methods have been proposed for the stabilization of higher index differential-algebraic equations (DAEs). Such methods often involve constraint differentiation and problem stabilization, thus obtaining a stabilized index reduction. A popular method is Baumgarte stabilization, but the choice of parameters to make it robust is unclear in practice. Here we explain why the Baumgarte method may run into trouble. We then show how to improve it. We further develop a unifying theory for stabilization methods which includes many of the various techniques proposed in the literature. Our approach is to (i) consider stabilization of ODEs with invariants, (ii) discretize the stabilizing term in a simple way, generally different from the ODE discretization, and (iii) use orthogonal projections whenever possible. The best methods thus obtained are related to methods of coordinate projection. We discuss them and make concrete algorithmic suggestions.}, language = {en} } @article{AsherReese2007, author = {Asher, Nicholas and Reese, Brian}, title = {Intonation and discourse}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-19399}, year = {2007}, abstract = {This paper surveys a range of constructions in which prosody affects discourse function and discourse structure.We discuss English tag questions, negative polar questions, and what we call "focus" questions. We postulate that these question types are complex speech acts and outline an analysis in Segmented Discourse Representation Theory (SDRT) to account for the interactions between prosody and discourse.}, language = {en} } @misc{Avalli2023, author = {Avalli, Andrea}, title = {Review of Dario Barbera: Processo al Classico. L'epurazione dell'archeologia fascista}, series = {thersites 16}, volume = {2023}, journal = {thersites 16}, number = {16}, editor = {Amb{\"u}hl, Annemarie and Carl{\`a}-Uhink, Filippo and Rollinger, Christian and Walde, Christine}, issn = {2364-7612}, doi = {10.34679/thersites.vol16.233}, pages = {168 -- 172}, year = {2023}, language = {en} } @article{AzarErdoenmezVerscheijden2012, author = {Azar, Elif Zeynep and Erd{\"o}nmez, {\c{C}}ağlayan and Verscheijden, Desir{\´e}e}, title = {Developing Critical Thinking}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-65867}, pages = {87 -- 92}, year = {2012}, abstract = {1. Critical thinking in curriculum framework 2. A general look at critical thinking 3. How critical thinking take s place in the classroom and some specific examples 4. Suggestions 5. Conclusion}, language = {en} } @techreport{Baade2018, type = {Working Paper}, author = {Baade, Bj{\"o}rnstjern}, title = {Fake News and International Law}, series = {KFG Working Paper Series}, journal = {KFG Working Paper Series}, number = {18}, issn = {2509-3770}, doi = {10.25932/publishup-42238}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-422383}, pages = {23}, year = {2018}, abstract = {In light of current efforts at addressing the dangers of fake news, this article will revisit the international law relevant to the phenomenon, in particular the prohibition of intervention, the 1936 International Convention on the Use of Broadcasting in the Cause of Peace, and the 1953 Convention on the International Right of Correction. It will be argued that important lessons can be learned from the League of Nations' (LON) efforts in the interwar period and the UN's activities in the immediate post-WWII era, while taking into account the new challenges that arise from modern communication technology. Taking up the LON's and UN's distinction between false and distorted news, the international legal framework will be tested, in particular, against the coverage of the 2016 'Lisa case' by Russian Government-funded media. This coverage is widely considered to be fake news aimed at destabilizing Germany's society and institutions. The article argues that false news can be subject to repressive regulation in a sensible manner. Distorted news, however, will have to be tolerated legally, since prohibitions in this regard would be too prone to abuse. A free and pluralist media, complemented by an appropriate governmental information policy, remains the best answer to fake news in all its forms. Due diligence obligations to fact-check, transparency, and remedies that are effective despite difficulties in attribution, and despite a lack of universal acceptance, could likewise be conducive.}, language = {en} } @article{BaarsBajzikPisarčiketal.2012, author = {Baars, Daniela and Bajz{\´i}k, Michal and Pisarč{\´i}k, Stanislav and Weiser, Ines}, title = {Developing critical thinking}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-65798}, pages = {45 -- 51}, year = {2012}, abstract = {1. What does critical thinking mean? 2. Critical thinking in school 3. Critical thinking as a process 4. Analysing and evaluating the questionnaire 5. Interview with one of the students 6. Analysis and evaluation of the assignments 7. Conclusion}, language = {en} } @article{BaarsDalŞimşek2013, author = {Baars, Daniela and Dal, Adem and Şim{\c{s}}ek, Esra}, title = {Relating to students}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {3}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-65935}, pages = {37 -- 43}, year = {2013}, abstract = {1. What does relating to students mean? 2. Student teachers' perceptions of relating the topic to the pupils 3. Conceptions of the pupils 4. Pupils' perspective 5. Expectations of the pupils 6. Pupils' evaluation of the strategies 7. Problems and suggestions 8. Conclusion / Summary}, language = {en} } @article{Baayen2012, author = {Baayen, Harald R.}, title = {Resource requirements for neo-generative modeling in (psycho)linguistics}, series = {Potsdam cognitive science series}, journal = {Potsdam cognitive science series}, number = {3}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2190-4545}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-62318}, pages = {5 -- 8}, year = {2012}, language = {en} } @article{BacskaiAtkari2019, author = {Bacskai-Atkari, Julia}, title = {Towards a Fanselownian analysis of degree expressions}, series = {Of trees and birds. A Festschrift for Gisbert Fanselow}, journal = {Of trees and birds. A Festschrift for Gisbert Fanselow}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-457-9}, doi = {10.25932/publishup-43222}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-432222}, pages = {95 -- 106}, year = {2019}, language = {en} } @techreport{BaganzdeTeresaLinggetal.2023, type = {Working Paper}, author = {Baganz, Melissa and de Teresa, Aurelia G{\´o}mez and Lingg, Rosana T. and Montijo, Yuriditzi Pascacio}, title = {A critical assessment on National Action Plans}, series = {Staat, Recht und Politik - Forschungs- und Diskussionspapiere}, journal = {Staat, Recht und Politik - Forschungs- und Diskussionspapiere}, number = {13}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2509-6974}, doi = {10.25932/publishup-57679}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-576797}, pages = {11}, year = {2023}, abstract = {National Action Plans (NAPs) have been increas-ingly adopted world-wide after the Vienna Dec-laration in 1993, where it was urged to consider the improvement and promotion of Human Rights. In this paper, we discuss their usefulness and success by analysing the challenges present-ed during NAP processes as well as the benefits this set of actions entails: The challenges for their implementation outweigh its actual benefits. Nevertheless, NAPs have great potential. Based on new research, we elaborate a set of recom-mendations for improving the design and imple-mentation of national action planning. In order to effectively bring NAP into practice, we consider it crucial to plan and analyse every state local circumstances in detail. The latter is important, since the implementation of a concrete set of actions is intended to directly transform and improve the local living conditions of the people. In a long-term perspective, we defend the benefit of NAP's implementation for complying obliga-tions set up by HR treaties.}, language = {en} } @misc{BaltesDittmannKohliKliegl1986, author = {Baltes, Paul B. and Dittmann-Kohli, Freya and Kliegl, Reinhold}, title = {Reserve capacity of the elderly in aging-sensitive tests of fluid intelligence : replication and extension}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-39939}, year = {1986}, abstract = {Fluid intelligence belongs to that cluster of intellectual abilities evincing aging loss. To examine further the range of intellectual reserve available to aging individuals and the question of replicability in a new cultural and laboratory setting, 204 healthy older adults (mean age = 72 years; range = 60-86) participated in a short-term longitudinal training study. For experimental subjects, 10 sessions consisted of cognitive training involving two subability tests (Figural Relations, Induction) of fluid intelligence. The pattern of outcomes replicates and expands on earlier studies. Older adults have the reserve to evince substantial increases in levels of performance in fluid intelligence tests. Transfer of training, however, is narrow in scope. Training also increases accuracy of performance and the ability to solve more difficult test items. Difficulty level was estimated in a separate study, with a comparable sample of N = 112 elderly adults. Future research is suggested to examine whether intellectual reserve extends to near-maximum levels of performance.}, language = {en} } @misc{BaltesKliegl1992, author = {Baltes, Paul B. and Kliegl, Reinhold}, title = {Further testing of limits of cognitive plasticity : negative age differences in a mnemonic skill are robust}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-40373}, year = {1992}, abstract = {Earlier testing-the-limits research on age differences in cognitive plasticity of a memory skill was extended by 18 additional assessment and training sessions to explore whether older adults were able to catch up with additional practice and improved training conditions. The focus was on the method of loci, which requires mental imagination to encode and retrieve lists of words from memory in serial order. Of the original 37 subjects, 35 (16 young, ranging from 20 to 30 years of age, and 19 older adults, ranging from 66 to 80 years of age) participated in the follow-up study. Older adults showed sizable performance deficits when compared with young adults and tested for limits of reserve capacity. The negative age difference was substantial, resistant to extensive practice, and applied to all subjects studied. The primary origin for this negative age difference may be a loss in the production and use of mental imagination for operations of the mind.}, language = {en} } @misc{BaltesKliegl1986, author = {Baltes, Paul B. and Kliegl, Reinhold}, title = {On the dynamics between growth and decline in the aging of intelligence and memory}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41116}, year = {1986}, abstract = {Content: - Different Intellectual Abilities Age Differently - Cultural Change and Interindividual Variability in Aging - Cognitive Intervention Research on Plasticity in Old Age * Psychological Evidence * Brain-Physiological Evidence - Age Differences and Testing-the-Limits - Conclusions - Summary}, language = {en} } @misc{BaltesKlieglDittmannKohli1988, author = {Baltes, Paul B. and Kliegl, Reinhold and Dittmann-Kohli, Freya}, title = {On the locus of training gains in research on the plasticity of fluid intelligence in old age}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-40288}, year = {1988}, abstract = {Cognitive training research has shown that many older adults have a substantial reserve capacity in fluid intelligence. Little is known, however, about the locus of plasticity. Two studies were conducted to examine whether training gains in fluid abilities are critically dependent on experimenter-guided training and/or whether older adults can achieve similar improvements by themselves on the basis of cognitive skills already available in their repertoire. Several comparisons were made: (a) between test performances after trainer-guided training in ability-specific cognitive skills and after self-guided retest practice (without feedback), (b) between performances under speeded and power conditions of assessment, (c) between performances on easy and difficult items, and (d) between the relative numbers of correct and wrong answers. Results suggest that a large share of the training improvement shown by the elderly can plausibly be explained as the result of the activation and practice of cognitive skills already available in their repertoire. The results also have implications for educational practice, pointing to the appropriateness of strategies of self-directed learning for many elderly adults.}, language = {en} } @misc{BaltesSowarkaKliegl1989, author = {Baltes, Paul B. and Sowarka, Doris and Kliegl, Reinhold}, title = {Cognitive training research on fluid intelligence in old age : what can older adults achieve by themselves?}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-40297}, year = {1989}, abstract = {Cognitive research on the plasticity of fluid intelligence has demonstrated that older adults benefit markedly from guided practice in cognitive skills and problem-solving strategies. We examined to what degree older adults are capable by themselves of achieving similar practice gains, focusing on the fluid ability of figural relations. A sample of 72 healthy older adults was assigned randomly to three conditions: control, tutor-guided training, self-guided training. Training time and training materials were held constant for the two training conditions. Posttraining performances were analyzed using a transfer of training paradigm in terms of three indicators: correct responses, accuracy, and level of item difficulty. The training programs were effective and produced a significant but narrow band of within-ability transfer. However, there was no difference between the two training groups. Older adults were shown to be capable of producing gains by themselves that were comparable to those obtained following tutor-guided training in the nature of test-relevant cognitive skills.}, language = {en} } @phdthesis{Bamberg2014, author = {Bamberg, Marlene}, title = {Planetary mapping tools applied to floor-fractured craters on Mars}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-72104}, school = {Universit{\"a}t Potsdam}, year = {2014}, abstract = {Planetary research is often user-based and requires considerable skill, time, and effort. Unfortunately, self-defined boundary conditions, definitions, and rules are often not documented or not easy to comprehend due to the complexity of research. This makes a comparison to other studies, or an extension of the already existing research, complicated. Comparisons are often distorted, because results rely on different, not well defined, or even unknown boundary conditions. The purpose of this research is to develop a standardized analysis method for planetary surfaces, which is adaptable to several research topics. The method provides a consistent quality of results. This also includes achieving reliable and comparable results and reducing the time and effort of conducting such studies. A standardized analysis method is provided by automated analysis tools that focus on statistical parameters. Specific key parameters and boundary conditions are defined for the tool application. The analysis relies on a database in which all key parameters are stored. These databases can be easily updated and adapted to various research questions. This increases the flexibility, reproducibility, and comparability of the research. However, the quality of the database and reliability of definitions directly influence the results. To ensure a high quality of results, the rules and definitions need to be well defined and based on previously conducted case studies. The tools then produce parameters, which are obtained by defined geostatistical techniques (measurements, calculations, classifications). The idea of an automated statistical analysis is tested to proof benefits but also potential problems of this method. In this study, I adapt automated tools for floor-fractured craters (FFCs) on Mars. These impact craters show a variety of surface features, occurring in different Martian environments, and having different fracturing origins. They provide a complex morphological and geological field of application. 433 FFCs are classified by the analysis tools due to their fracturing process. Spatial data, environmental context, and crater interior data are analyzed to distinguish between the processes involved in floor fracturing. Related geologic processes, such as glacial and fluvial activity, are too similar to be separately classified by the automated tools. Glacial and fluvial fracturing processes are merged together for the classification. The automated tools provide probability values for each origin model. To guarantee the quality and reliability of the results, classification tools need to achieve an origin probability above 50 \%. This analysis method shows that 15 \% of the FFCs are fractured by intrusive volcanism, 20 \% by tectonic activity, and 43 \% by water \& ice related processes. In total, 75 \% of the FFCs are classified to an origin type. This can be explained by a combination of origin models, superposition or erosion of key parameters, or an unknown fracturing model. Those features have to be manually analyzed in detail. Another possibility would be the improvement of key parameters and rules for the classification. This research shows that it is possible to conduct an automated statistical analysis of morphologic and geologic features based on analysis tools. Analysis tools provide additional information to the user and are therefore considered assistance systems.}, language = {en} } @inproceedings{BandaGallagher2010, author = {Banda, Gourinath and Gallagher, John P.}, title = {Constraint-based abstraction of a model checker for infinite state systems}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41516}, year = {2010}, abstract = {Abstract interpretation-based model checking provides an approach to verifying properties of infinite-state systems. In practice, most previous work on abstract model checking is either restricted to verifying universal properties, or develops special techniques for temporal logics such as modal transition systems or other dual transition systems. By contrast we apply completely standard techniques for constructing abstract interpretations to the abstraction of a CTL semantic function, without restricting the kind of properties that can be verified. Furthermore we show that this leads directly to implementation of abstract model checking algorithms for abstract domains based on constraints, making use of an SMT solver.}, language = {en} } @article{Baraldi2011, author = {Baraldi, Luca}, title = {Immobile Tremor}, series = {PaRDeS : Zeitschrift der Vereinigung f{\"u}r J{\"u}dische Studien e.V.}, journal = {PaRDeS : Zeitschrift der Vereinigung f{\"u}r J{\"u}dische Studien e.V.}, number = {17}, issn = {1614-6492}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-53255}, pages = {71 -- 95}, year = {2011}, abstract = {The threshold between the XVth and the XVIth Century represents a historical period during which, both for Christians and for Jews, the geopolitical sceneries and the interior horizons radically change. The modified reality provokes new forms of expectation and the need of new historical interpretations. Ferrara, within this scenery, can be considered, as other Italian cases, as a paradigmatic example, a narrow space where phenomena of spiritual and cultural Jewish rebirth can take shape. The permeability between Christian artistic and cultural world and Jewish intellectual production determines a prosperous context, further strengthened by the introduction of Jewish typography and by a growing claim and restoration of social elective dignity among the Jews of the Este Duchy. After the transfer of the capital city from Ferrara to Modena, the indirect effects of this intellectual resurgence are deeply transformed on a social level, and allows us to catch the persistence of important forms of communication between Christians and Jews in everyday life. The introduction of the Inquisition provides us, through the production of the judicial archive, with the most important instrument to understand social dynamics, which allows us to comprehend a new potential interpretation key for the reality of the ghetto and the choice of its erection. The urban division is nothing else but a new attempt to separate the invisible spaces of the thought. The effective efficacy of the physical separation shows several weak points, which persist during the entire life of the ghetto, since 1638 until 1789.}, language = {en} } @inproceedings{BarbaianiCanceddaDanceetal.2008, author = {Barbaiani, Mădălina and Cancedda, Nicola and Dance, Chris and Fazekas, Szil{\´a}rd and Ga{\´a}l, Tam{\´a}s and Gaussier, {\´E}ric}, title = {Asymmetric term alignment with selective contiguity constraints by multi-tape automata}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27115}, year = {2008}, abstract = {This article describes a HMM-based word-alignment method that can selectively enforce a contiguity constraint. This method has a direct application in the extraction of a bilingual terminological lexicon from a parallel corpus, but can also be used as a preliminary step for the extraction of phrase pairs in a Phrase-Based Statistical Machine Translation system. Contiguous source words composing terms are aligned to contiguous target language words. The HMM is transformed into a Weighted Finite State Transducer (WFST) and contiguity constraints are enforced by specific multi-tape WFSTs. The proposed method is especially suited when basic linguistic resources (morphological analyzer, part-of-speech taggers and term extractors) are available for the source language only.}, language = {en} } @techreport{BarkholdtKulaga2018, type = {Working Paper}, author = {Barkholdt, Janina and Kulaga, Julian}, title = {Analytical Presentation of the Comments and Observations by States on Draft Article 7, Paragraph 1, of the ILC Draft Articles on Immunity of State Officials From Foreign Criminal Jurisdiction, United Nations General Assembly, Sixth Committee, 2017}, series = {KFG Working Paper Series}, journal = {KFG Working Paper Series}, number = {14}, issn = {2509-3770}, doi = {10.25932/publishup-42212}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-422128}, pages = {108}, year = {2018}, abstract = {During its sessions in 2016 and 2017 the UN International Law Commission (ILC) debated the question whether the immunity of State officials from foreign criminal jurisdiction is subject to exceptions for international crimes and provisionally adopted a Draft Article 7 on immunity ratione materiae. The following analytical presentation classifies and documents the reactions of States to draft article 7, paragraph 1, as they have been expressed in the Sixth (Legal) Committee of the General Assembly in 2017.}, language = {en} } @article{BarnesKennewell2015, author = {Barnes, Jan and Kennewell, Steve}, title = {Teacher Perceptions of Key Competencies in ICT}, series = {KEYCIT 2014 - Key Competencies in Informatics and ICT}, journal = {KEYCIT 2014 - Key Competencies in Informatics and ICT}, number = {7}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1868-0844}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-82604}, pages = {61 -- 75}, year = {2015}, abstract = {Regardless of what is intended by government curriculum specifications and advised by educational experts, the competencies taught and learned in and out of classrooms can vary considerably. In this paper, we discuss in particular how we can investigate the perceptions that individual teachers have of competencies in ICT, and how these and other factors may influence students' learning. We report case study research which identifies contradictions within the teaching of ICT competencies as an activity system, highlighting issues concerning the object of the curriculum, the roles of the participants and the school cultures. In a particular case, contradictions in the learning objectives between higher order skills and the use of application tools have been resolved by a change in the teacher's perceptions which have not led to changes in other aspects of the activity system. We look forward to further investigation of the effects of these contradictions in other case studies and on forthcoming curriculum change.}, language = {en} } @article{Baron2005, author = {Baron, Frank}, title = {From Alexander von Humboldt to Frederic Edwin Church}, series = {HIN : Alexander von Humboldt im Netz ; international review for Humboldtian studies}, volume = {VI}, journal = {HIN : Alexander von Humboldt im Netz ; international review for Humboldtian studies}, number = {10}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/56}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-35194}, pages = {7 -- 20}, year = {2005}, abstract = {Stephen Jay Gould wrote recently that "when Church began to paint his great canvases, Alexander von Humboldt may well have been the world's most famous and influential intellectual." Humboldt's influence in the case of the landscape artist Church is especially interesting. If we examine the precise relationship between the German explorer and his American admirer, we gain an insight into how Humboldt transformed Church's life and signaled a new phase in the career of the artist. Church retraced Humboldt's travels in Ecuador and in Mexico. If we compare the texts available to Church and the comparison of Church's paintings and the texts and images of Humboldt's works we can arrive at new perspectives on Humboldt's extraordinary influence on American landscape painting in the nineteenth century.}, language = {en} } @inproceedings{Barthelemy2008, author = {Barth{\´e}lemy, Fran{\c{c}}ois}, title = {Finite-state compilation of feature structures for two-level morphology}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27120}, year = {2008}, abstract = {This paper describes a two-level formalism where feature structures are used in contextual rules. Whereas usual two-level grammars describe rational sets over symbol pairs, this new formalism uses tree structured regular expressions. They allow an explicit and precise definition of the scope of feature structures. A given surface form may be described using several feature structures. Feature unification is expressed in contextual rules using variables, like in a unification grammar. Grammars are compiled in finite state multi-tape transducers.}, language = {en} } @inproceedings{Bartle2008, author = {Bartle, Richard}, title = {When openness closes : the line between play and design}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-24536}, year = {2008}, abstract = {One of the informal properties often used to describe a new virtual world is its degree of openness. Yet what is an "open" virtual world? Does the phrase mean generally the same thing to different people? What distinguishes an open world from a less open world? Why does openness matter anyway? The answers to these questions cast light on an important, but shadowy, and uneasy, topic for virtual worlds: the relationship between those who construct the virtual, and those who use these constructions.}, language = {en} } @article{Bauman1999, author = {Bauman, Zygmunt}, title = {Local Orders, Global Chaos}, series = {Geographische Revue : Zeitschrift f{\"u}r Literatur und Diskussion}, volume = {1}, journal = {Geographische Revue : Zeitschrift f{\"u}r Literatur und Diskussion}, number = {1}, issn = {1438-3039}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-23782}, pages = {64 -- 72}, year = {1999}, language = {en} } @article{Bayer2019, author = {Bayer, Josef}, title = {On uninterpretable features}, series = {Of trees and birds. A Festschrift for Gisbert Fanselow}, journal = {Of trees and birds. A Festschrift for Gisbert Fanselow}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-457-9}, doi = {10.25932/publishup-43250}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-432507}, pages = {231 -- 241}, year = {2019}, language = {en} } @article{BechtoldHogendoornKohutovaetal.2013, author = {Bechtold, Sander and Hogendoorn, Thirza and Koh{\´u}tov{\´a}, Vivien and Potočanov{\´a}, Katar{\´i}na}, title = {Deepening understanding}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {3}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-66011}, pages = {105 -- 110}, year = {2013}, abstract = {1. Key concepts 2. What students should have done 3. What students did 4. Deepening understanding 5. General description of deepening understanding 6. Why is deepening understanding an important stage? 7. How does deepening understanding occur in the lessons and some examples 8. Possible difficulties 9. Conclusion}, language = {en} } @misc{Beck2022, author = {Beck, Christian}, title = {Review of Hamish Williams: Tolkien and the Classical World}, series = {thersites 15}, volume = {2022}, journal = {thersites 15}, number = {15}, editor = {Amb{\"u}hl, Annemarie and Carl{\`a}-Uhink, Filippo and Rollinger, Christian and Walde, Christine}, issn = {2364-7612}, doi = {10.34679/thersites.vol15.230}, pages = {314 -- 320}, year = {2022}, language = {en} } @misc{BeckHildebrandtLoehmannsroeben2006, author = {Beck, Michael and Hildebrandt, Niko and L{\"o}hmannsr{\"o}ben, Hans-Gerd}, title = {Quantum dots as acceptors in FRET-assays containing serum}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-9504}, year = {2006}, abstract = {Quantum dots (QDs) are common as luminescing markers for imaging in biological applications because their optical properties seem to be inert against their surrounding solvent. This, together with broad and strong absorption bands and intense, sharp tuneable luminescence bands, makes them interesting candidates for methods utilizing F{\"o}rster Resonance Energy Transfer (FRET), e. g. for sensitive homogeneous fluoroimmunoassays (FIA). In this work we demonstrate energy transfer from Eu3+-trisbipyridin (Eu-TBP) donors to CdSe-ZnS-QD acceptors in solutions with and without serum. The QDs are commercially available CdSe-ZnS core-shell particles emitting at 655 nm (QD655). The FRET system was achieved by the binding of the streptavidin conjugated donors with the biotin conjugated acceptors. After excitation of Eu-TBP and as result of the energy transfer, the luminescence of the QD655 acceptors also showed lengthened decay times like the donors. The energy transfer efficiency, as calculated from the decay times of the bound and the unbound components, amounted to 37\%. The F{\"o}rster-radius, estimated from the absorption and emission bands, was ca. 77 {\AA}. The effective binding ratio, which not only depends on the ratio of binding pairs but also on unspecific binding, was obtained from the donor emission dependent on the concentration. As serum promotes unspecific binding, the overall FRET efficiency of the assay was reduced. We conclude that QDs are good substitutes for acceptors in FRET if combined with slow decay donors like Europium. The investigation of the influence of the serum provides guidance towards improving binding properties of QD assays.}, subject = {Quantenpunkt}, language = {en} } @article{BeckerBomansWeis2015, author = {Becker, Andrew C. and Bomans, Dominik J. and Weis, K.}, title = {Finding new Wolf-Rayet stars in the Magellanic Clouds}, series = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015}, journal = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-87618}, pages = {47 -- 50}, year = {2015}, abstract = {Obtaining a complete census of massive, evolved stars in a galaxy would be a key ingredient for testing stellar evolution models. However, as the evolution of stars is also strongly dependent on their metallicity, it is inevitable to have this kind of data for a variety of galaxies with different metallicities. Between 2009 and 2011, we conducted the Magellanic Clouds Massive Stars and Feedback Survey (MSCF); a spatially complete, multi-epoch, broad- and narrow-band optical imaging survey of the Large and Small Magellanic Clouds. With the inclusion of shallow images, we are able to give a complete photometric catalog of stars between B ≈ 18 and B ≈ 19 mag. These observations were augmented with additional photometric data of similar spatial res- olution from UV to IR (e.g. from GALEX, 2MASS and Spitzer) in order to sample a large portion of the spectral energy distribution of the brightest stars (B < 16 mag) in the Magel- lanic Clouds. Using these data, were are able to train a machine learning algorithm that gives us a good estimate of the spectral type of tens of thousands of stars. This method can be applied to the search for Wolf-Rayet-Stars to obtain a sample of candi- dates for follow-up observations. As this approach can, in principle, be adopted for any resolved galaxy as long as sufficient photometric data is available, it can form an effective alternative method to the classical strategies (e.g. He II filter imaging).}, language = {en} } @phdthesis{Behrens2018, author = {Behrens, Ricarda}, title = {Causes for slow weathering and erosion in the steep, warm, monsoon-subjected Highlands of Sri Lanka}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-408503}, school = {Universit{\"a}t Potsdam}, pages = {ix, 107, XXIV}, year = {2018}, abstract = {In the Highlands of Sri Lanka, erosion and chemical weathering rates are among the lowest for global mountain denudation. In this tropical humid setting, highly weathered deep saprolite profiles have developed from high-grade metamorphic charnockite during spheroidal weathering of the bedrock. The spheroidal weathering produces rounded corestones and spalled rindlets at the rock-saprolite interface. I used detailed textural, mineralogical, chemical, and electron-microscopic (SEM, FIB, TEM) analyses to identify the factors limiting the rate of weathering front advance in the profile, the sequence of weathering reactions, and the underlying mechanisms. The first mineral attacked by weathering was found to be pyroxene initiated by in situ Fe oxidation, followed by in situ biotite oxidation. Bulk dissolution of the primary minerals is best described with a dissolution - re-precipitation process, as no chemical gradients towards the mineral surface and sharp structural boundaries are observed at the nm scale. Only the local oxidation in pyroxene and biotite is better described with an ion by ion process. The first secondary phases are oxides and amorphous precipitates from which secondary minerals (mainly smectite and kaolinite) form. Only for biotite direct solid state transformation to kaolinite is likely. The initial oxidation of pyroxene and biotite takes place in locally restricted areas and is relatively fast: log J = -11 molmin/(m2 s). However, calculated corestone-scale mineral oxidation rates are comparable to corestone-scale mineral dissolution rates: log R = -13 molpx/(m2 s) and log R = -15 molbt/(m2 s). The oxidation reaction results in a volume increase. Volumetric calculations suggest that this observed oxidation leads to the generation of porosity due to the formation of micro-fractures in the minerals and the bedrock allowing for fluid transport and subsequent dissolution of plagioclase. At the scale of the corestone, this fracture reaction is responsible for the larger fractures that lead to spheroidal weathering and to the formation of rindlets. Since these fractures have their origin from the initial oxidational induced volume increase, oxidation is the rate limiting parameter for weathering to take place. The ensuing plagioclase weathering leads to formation of high secondary porosity in the corestone over a distance of only a few cm and eventually to the final disaggregation of bedrock to saprolite. As oxidation is the first weathering reaction, the supply of O2 is a rate-limiting factor for chemical weathering. Hence, the supply of O2 and its consumption at depth connects processes at the weathering front with erosion at the surface in a feedback mechanism. The strength of the feedback depends on the relative weight of advective versus diffusive transport of O2 through the weathering profile. The feedback will be stronger with dominating diffusive transport. The low weathering rate ultimately depends on the transport of O2 through the whole regolith, and on lithological factors such as low bedrock porosity and the amount of Fe-bearing primary minerals. In this regard the low-porosity charnockite with its low content of Fe(II) bearing minerals impedes fast weathering reactions. Fresh weatherable surfaces are a pre-requisite for chemical weathering. However, in the case of the charnockite found in the Sri Lankan Highlands, the only process that generates these surfaces is the fracturing induced by oxidation. Tectonic quiescence in this region and low pre-anthropogenic erosion rate (attributed to a dense vegetation cover) minimize the rejuvenation of the thick and cohesive regolith column, and lowers weathering through the feedback with erosion.}, language = {en} } @article{BeirneNicGiollaMhichilBrownetal.2021, author = {Beirne, Elaine and Nic Giolla Mhich{\´i}l, Mair{\´e}ad and Brown, Mark and Mac Lochlainn, Conch{\´u}r}, title = {Confidence Counts}, series = {EMOOCs 2021}, volume = {2021}, journal = {EMOOCs 2021}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-512-5}, doi = {10.25932/publishup-51722}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-517220}, pages = {201 -- 208}, year = {2021}, abstract = {The increasing reliance on online learning in higher education has been further expedited by the on-going Covid-19 pandemic. Students need to be supported as they adapt to this new learning environment. Research has established that learners with positive online learning self-efficacy beliefs are more likely to persevere and achieve their higher education goals when learning online. In this paper, we explore how MOOC design can contribute to the four sources of self-efficacy beliefs posited by Bandura [4]. Specifically, we will explore, drawing on learner reflections, whether design elements of the MOOC, The Digital Edge: Essentials for the Online Learner, provided participants with the necessary mastery experiences, vicarious experiences, verbal persuasion, and affective regulation opportunities, to evaluate and develop their online learning self-efficacy beliefs. Findings from a content analysis of discussion forum posts show that learners referenced three of the four information sources when reflecting on their experience of the MOOC. This paper illustrates the potential of MOOCs as a pedagogical tool for enhancing online learning self-efficacy among students.}, language = {en} } @article{BellettiniLonatiMalchiodietal.2013, author = {Bellettini, Carlo and Lonati, Violetta and Malchiodi, Dario and Monga, Mattia and Morpurgo, Anna and Torelli, Mauro}, title = {What you see is what you have in mind}, series = {Commentarii informaticae didacticae : (CID)}, journal = {Commentarii informaticae didacticae : (CID)}, number = {6}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1868-0844}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-64612}, pages = {139 -- 147}, year = {2013}, abstract = {In this paper we report on our experiments in teaching computer science concepts with a mix of tangible and abstract object manipulations. The goal we set ourselves was to let pupils discover the challenges one has to meet to automatically manipulate formatted text. We worked with a group of 25 secondary school pupils (9-10th grade), and they were actually able to "invent" the concept of mark-up language. From this experiment we distilled a set of activities which will be replicated in other classes (6th grade) under the guidance of maths teachers.}, language = {en} } @article{Benacka2013, author = {Benacka, Jan}, title = {BubbleSort, SelectSort and InsertSort in Excel \& Delphi}, series = {Commentarii informaticae didacticae : (CID)}, journal = {Commentarii informaticae didacticae : (CID)}, number = {6}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1868-0844}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-64636}, pages = {153 -- 154}, year = {2013}, abstract = {A method is presented of acquiring the principles of three sorting algorithms through developing interactive applications in Excel.}, language = {en} } @article{BeradzeKochiashviliNatsvlishvilietal.2015, author = {Beradze, S. and Kochiashvili, N. and Natsvlishvili, R. and Kochiashvili, I. and Janiashvili, E. and Urushadze, T. and Vardosanidze, M.}, title = {P Cygni and its Observations at the Abastumani Observatory}, series = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015}, journal = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-88389}, pages = {353}, year = {2015}, abstract = {We found original observations of PCygni by E. Kharadze and N. Magalashvili in the archives of the Abastumani Observatory. These observations were carried out in the period 1951-1983. Initially they used 29 Cygni as a comparison star, and all observations of PCygni were processed using this star. On the basis of their calculations, the authors decided that PCygni may be a WUMa type binary with an orbital period of 0.500565 d, but this hypothesis was not confirmed. The only observations that have been published in the Bulletin of the Abastumani Astrophysical Observatory were those of of 1951-1955. There are whole sets of observational data not only for PCygni and 29 Cygni, but in the majority of cases also for 36 Cygni in the archives. We recalculated all data (where it was possible) using 36 Cygni as a comparison star. We are presenting UBV light curves of the variable, and also observations made by V. Nikonov in Abastumani in the period 1935-1937}, language = {en} } @article{Berg2008, author = {Berg, Holger}, title = {Military Occupation under the Eyes of the Lord}, series = {Milit{\"a}r und Gesellschaft in der fr{\"u}hen Neuzeit}, volume = {12}, journal = {Milit{\"a}r und Gesellschaft in der fr{\"u}hen Neuzeit}, number = {1}, issn = {1861-910X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-21318}, pages = {53 -- 57}, year = {2008}, language = {en} } @inproceedings{BergmannKopp2006, author = {Bergmann, Kirsten and Kopp, Stefan}, title = {Verbal or visual? : How information is distributed across speech and gesture in spatial dialog}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-10375}, year = {2006}, abstract = {In spatial dialog like in direction giving humans make frequent use of speechaccompanying gestures. Some gestures convey largely the same information as speech while others complement speech. This paper reports a study on how speakers distribute meaning across speech and gesture, and depending on what factors. Utterance meaning and the wider dialog context were tested by statistically analyzing a corpus of direction-giving dialogs. Problems of speech production (as indicated by discourse markers and disfluencies), the communicative goals, and the information status were found to be influential, while feedback signals by the addressee do not have any influence.}, language = {en} } @techreport{Berman2018, type = {Working Paper}, author = {Berman, Franklin}, title = {Authority in International Law}, series = {KFG Working Paper Series}, journal = {KFG Working Paper Series}, number = {22}, issn = {2509-3770}, doi = {10.25932/publishup-42284}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-422843}, pages = {21}, year = {2018}, abstract = {The author discusses the question of authority when determining the content of an international legal rule. Taking Article 38(1)(d) of the ICJ Statute as a point of departure, he determines through meticolous analysis what ranks as judicial decisions as well as teachings within the meaning of the norm. The author then proceeds to a number of factors to determine authoritativeness: objectivity, knowledgeability, depth of analysis, and the presence or otherwise of reasoning and, in particular, the persuasiveness of an opinion. In the case of judicial pronouncements, the author points out that the paradox between Article 59 and Article 38(1)(d) of the ICJ Statute is only an apparent one. While judgments of the Court are binding only between the parties, it is merely the underlying reasoning that can be taken into account in the context of Article 38(1)(d) if considered persuasive. Without central authority, authoritativenes in international law must always be earned which is also the reason for the lack of an hierarchical order between as well as within judicial pronouncements and learned writings though the former are usually more likely to fulfil the criteria of authoritativeness. In both cases, however, previously acquired reputation of a court or even an individual judge as well as of a learned writer can create a presumption of authoritativeness. On a more general level, the author concludes with a call for a more careful differentiation between the determination of law and its application. Putting the issue discussed into perspective, the author argues that situations of law determination arise, contrary to common understanding, in fact far less often than situations of law application.}, language = {en} } @unpublished{BermanTarkhanov2004, author = {Berman, Gennady and Tarkhanov, Nikolai Nikolaevich}, title = {Quantum dynamics in the Fermi-Pasta-Ulam problem}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-26695}, year = {2004}, abstract = {We study the dynamics of four wave interactions in a nonlinear quantum chain of oscillators under the "narrow packet" approximation. We determine the set of times for which the evolution of decay processes is essentially specified by quantum effects. Moreover, we highlight the quantum increment of instability.}, language = {en} } @article{BerryKusterer2013, author = {Berry, Carol and Kusterer, Peter}, title = {Using Teachers' TryScience to support educators and improve teaching}, series = {Commentarii informaticae didacticae : (CID)}, journal = {Commentarii informaticae didacticae : (CID)}, number = {6}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1868-0844}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-64665}, pages = {161 -- 162}, year = {2013}, abstract = {The challenge is providing teachers with the resources they need to strengthen their instructions and better prepare students for the jobs of the 21st Century. Technology can help meet the challenge. Teachers' Tryscience is a noncommercial offer, developed by the New York Hall of Science, TeachEngineering, the National Board for Professional Teaching Standards and IBM Citizenship to provide teachers with such resources. The workshop provides deeper insight into this tool and discussion of how to support teaching of informatics in schools.}, language = {en} } @article{Bestenlehner2015, author = {Bestenlehner, J. M.}, title = {Stellar parameters from photometric data for fainter and more distant Wolf-Rayet stars}, series = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015}, journal = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-88390}, pages = {354}, year = {2015}, abstract = {Spectroscopy is the preferred way to study the physical and wind properties of Wolf-Rayet (WR) stars, but with decreasing brightness and increasing distance of the object spectroscopy become very expensive. However, photometry still delivers a high signal to noise ratio. Current and past astronomical surveys and space missions provide large data sets, that can be harvested to discover new WR stars and study them over a wide metallicity range with the help of state of the art stellar atmosphere and evolutionary models.}, language = {en} } @article{BethgeSerthStaubitzetal.2021, author = {Bethge, Joseph and Serth, Sebastian and Staubitz, Thomas and Wuttke, Tobias and Nordemann, Oliver and Das, Partha-Pratim and Meinel, Christoph}, title = {TransPipe}, series = {EMOOCs 2021}, volume = {2021}, journal = {EMOOCs 2021}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, doi = {10.25932/publishup-51694}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-516943}, pages = {79 -- 94}, year = {2021}, abstract = {Online learning environments, such as Massive Open Online Courses (MOOCs), often rely on videos as a major component to convey knowledge. However, these videos exclude potential participants who do not understand the lecturer's language, regardless of whether that is due to language unfamiliarity or aural handicaps. Subtitles and/or interactive transcripts solve this issue, ease navigation based on the content, and enable indexing and retrieval by search engines. Although there are several automated speech-to-text converters and translation tools, their quality varies and the process of integrating them can be quite tedious. Thus, in practice, many videos on MOOC platforms only receive subtitles after the course is already finished (if at all) due to a lack of resources. This work describes an approach to tackle this issue by providing a dedicated tool, which is closing this gap between MOOC platforms and transcription and translation tools and offering a simple workflow that can easily be handled by users with a less technical background. The proposed method is designed and evaluated by qualitative interviews with three major MOOC providers.}, language = {en} } @inproceedings{BetzRaiserFruehwirth2010, author = {Betz, Hariolf and Raiser, Frank and Fr{\"u}hwirth, Thom}, title = {Persistent constraints in constraint handling rules}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41547}, year = {2010}, abstract = {In the most abstract definition of its operational semantics, the declarative and concurrent programming language CHR is trivially non-terminating for a significant class of programs. Common refinements of this definition, in closing the gap to real-world implementations, compromise on declarativity and/or concurrency. Building on recent work and the notion of persistent constraints, we introduce an operational semantics avoiding trivial non-termination without compromising on its essential features.}, language = {en} } @inproceedings{BeyssadeMarandin2006, author = {Beyssade, Claire and Marandin, Jean-Marie}, title = {From complex to simple speech acts : a bidimensional analysis of illocutionary}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-10319}, year = {2006}, abstract = {We present a new analysis of illocutionary forces in dialogue. We analyze them as complex conversational moves involving two dimensions: what Speaker commits herself to and what she calls on Addressee to perform. We start from the analysis of speech acts such as confirmation requests or whimperatives, and extend the analysis to seemingly simple speech acts, such as statements and queries. Then, we show how to integrate our proposal in the framework of the Grammar for Conversation (Ginzburg, to app.), which is adequate for modelling agents' information states and how they get updated.}, language = {en} } @article{BibbySharaZureketal.2015, author = {Bibby, J. and Shara, M. and Zurek, D. and Crowther, P. A. and Moffat, Anthony F. J. and Drissen, L. and Wilde, M.}, title = {The Distribution of Massive Stars in M101}, series = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015}, journal = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-88402}, pages = {355}, year = {2015}, abstract = {75 WR stars and 164 RSGs are identified in a single WFC3 pointing of our M101 survey. We find that within it's large star-forming complex NGC 5462 WR stars are preferentially located in the core whilst RSGs are found in the halo, suggesting two bursts of star-formation. A review of our WR candidates reveals that only ∼30\% are detected in the archival broad-band ACS imaging whilst only ∼50\% are associated with HII regions.}, language = {en} } @misc{BiddleRickertLandoetal.1989, author = {Biddle, M. B. and Rickert, S. E. and Lando, J. B. and Laschewsky, Andr{\´e}}, title = {The use of the Langmuir-Blodgett technique to obtain ultra-thin polar films}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17185}, year = {1989}, abstract = {The piezoelectric and pyroelectric properties of oriented films possessing dipole moments are increasingly being used in pressure, acoustic, thermal and optical devices. The performance of these devices in many applications may be enhanced by thin-film technology.The developing Langmuir-Blodgett thin-film deposition technique offers the opportunity to obtain highly oriented and uniform organic-based films in the 10-5000 nm thickness range. Special techniques must be used, however, to assemble these molecules in such a way as to result in polar multilayer films. Several possible deposition techniques are investigated, with one resulting in a polar and pyroelectric film about 50 nm thick.}, language = {en} } @misc{BielawskiJurišićLenzetal.2006, author = {Bielawski, Martina and Jurišić, J. and Lenz, T. and Maxian Rusche, T. and Nippert, C.}, title = {Via : communis Europa ; Europe's architecture in 2020}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-48454}, year = {2006}, abstract = {Forum: EU-Diplomatie im Jahre 2020}, language = {en} } @misc{BillardAnsoborloAppersonetal.2003, author = {Billard, Isabelle and Ansoborlo, Eric and Apperson, Kathleen and Arpigny, Sylvie and Azenha, M. Emilia and Birch, David and Bros, Pascal and Burrows, Hugh D. and Choppin, Gregory and Kumke, Michael Uwe}, title = {Aqueous solutions of Uranium(VI) as studied by time-resolved emission spectroscopy : a Round-Robin Test}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-12318}, year = {2003}, abstract = {Results of an inter-laboratory round-robin study of the application of time-resolved emission spectroscopy (TRES) to the speciation of uranium(VI) in aqueous media are presented. The round-robin study involved 13 independent laboratories, using various instrumentation and data analysis methods. Samples were prepared based on appropriate speciation diagrams and, in general, were found to be chemically stable for at least six months. Four different types of aqueous uranyl solutions were studied: (1) acidic medium where UO22+aq is the single emitting species, (2) uranyl in the presence of fluoride ions, (3) uranyl in the presence of sulfate ions, and (4) uranyl in aqueous solutions at different pH, promoting the formation of hydrolyzed species. Results between the laboratories are compared in terms of the number of decay components, luminescence lifetimes, and spectral band positions. The successes and limitations of TRES in uranyl analysis and speciation in aqueous solutions are discussed.}, language = {en} } @article{BievrePerrin2021, author = {Bi{\`e}vre-Perrin, Fabien}, title = {"Everything is a copy of a copy of a copy"}, series = {thersites 13: Antiquipop - Chefs d'œuvres revisit{\´e}s}, volume = {2021}, journal = {thersites 13: Antiquipop - Chefs d'œuvres revisit{\´e}s}, number = {13}, editor = {Bi{\`e}vre-Perrin, Fabien and Carl{\`a}-Uhink, Filippo and Rollinger, Christian and Walde, Christine}, issn = {2364-7612}, doi = {10.34679/thersites.vol13.191}, pages = {i -- v}, year = {2021}, abstract = {A quote from Fight Club (Chuck Palahniuk, 1996) may seem unusual for a Classicist. Nevertheless, this famous sentence summarises the contents of this special issue of thersites perfectly. As specialists in classical reception frequently witness, there is a sort of d{\´e}j{\`a}-vu effect when it comes to the presence of Antiquity within popular culture. In 2019, to try to better understand the phenomenon, Antiquipop invited researchers to take an interest in the construction and semantic path of these "masterpieces" in contemporary popular culture, with a particular focus on the 21st century.}, language = {en} } @article{BlackwellWiltrout2021, author = {Blackwell, Virginia Katherine and Wiltrout, Mary Ellen}, title = {Learning During COVID-19}, series = {EMOOCs 2021}, volume = {2021}, journal = {EMOOCs 2021}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-512-5}, doi = {10.25932/publishup-51725}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-517251}, pages = {219 -- 236}, year = {2021}, abstract = {During the COVID-19 pandemic, learning in higher education and beyond shifted en masse to online formats, with the short- and long-term consequences for Massive Open Online Course (MOOC) platforms, learners, and creators still under evaluation. In this paper, we sought to determine whether the COVID-19 pandemic and this shift to online learning led to increased learner engagement and attainment in a single introductory biology MOOC through evaluating enrollment, proportional and individual engagement, and verification and performance data. As this MOOC regularly operates each year, we compared these data collected from two course runs during the pandemic to three pre-pandemic runs. During the first pandemic run, the number and rate of learners enrolling in the course doubled when compared to prior runs, while the second pandemic run indicated a gradual return to pre-pandemic enrollment. Due to higher enrollment, more learners viewed videos, attempted problems, and posted to the discussion forums during the pandemic. Participants engaged with forums in higher proportions in both pandemic runs, but the proportion of participants who viewed videos decreased in the second pandemic run relative to the prior runs. A higher percentage of learners chose to pursue a certificate via the verified track in each pandemic run, though a smaller proportion earned certification in the second pandemic run. During the pandemic, more enrolled learners did not necessarily correlate to greater engagement by all metrics. While verified-track learner performance varied widely during each run, the effects of the pandemic were not uniform for learners, much like in other aspects of life. As such, individual engagement trends in the first pandemic run largely resemble pre-pandemic metrics but with more learners overall, while engagement trends in the second pandemic run are less like pre-pandemic metrics, hinting at learner "fatigue". This study serves to highlight the life-long learning opportunity that MOOCs offer is even more critical when traditional education modes are disrupted and more people are at home or unemployed. This work indicates that this boom in MOOC participation may not remain at a high level for the longer term in any one course, but overall, the number of MOOCs, programs, and learners continues to grow.}, language = {en} } @article{BlahušiakovaRoeperKuehnemannStaufenbieletal.2012, author = {Blahušiakov{\´a}, Andrea and R{\"o}per-K{\"u}hnemann, Christian and Staufenbiel, Christoph and Voz{\´a}rov{\´a}, Hana}, title = {Relating to students}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-65769}, pages = {25 -- 31}, year = {2012}, abstract = {1. The Assignment 'Devotion to Religion and acitive Citizenship' 2. The Assignment 'How are religious spread across Europe' 3. The Assignment 'Is football as important as religion?' 4. The Assignment 'Why be religious?' 5. The Assignment 'Lucky charms' 6. The Assignment 'No Creo en el Jamas' (Life after death) 7. The Assignment 'Religion and its influence on politics ans policies' 8. The Assignment 'Secularisation in Europe' 9. The Assignment 'The meaning of religious places' 10. The Assignment 'Unity in diversity' 11. Which conceptions did you find?}, language = {en} } @inproceedings{BlancConstantWatrin2008, author = {Blanc, Olivier and Constant, Matthieu and Watrin, Patrick}, title = {Segmentation in super-chunks with a finite-state approach}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27133}, year = {2008}, abstract = {Since Harris' parser in the late 50s, multiword units have been progressively integrated in parsers. Nevertheless, in the most part, they are still restricted to compound words, that are more stable and less numerous. Actually, language is full of semi-fixed expressions that also form basic semantic units: semi-fixed adverbial expressions (e.g. time), collocations. Like compounds, the identification of these structures limits the combinatorial complexity induced by lexical ambiguity. In this paper, we detail an experiment that largely integrates these notions in a finite-state procedure of segmentation into super-chunks, preliminary to a parser.We show that the chunker, developped for French, reaches 92.9\% precision and 98.7\% recall. Moreover, multiword units realize 36.6\% of the attachments within nominal and prepositional phrases.}, language = {en} } @article{BlaszczakDipperFanselowetal.2007, author = {Blaszczak, Joanna and Dipper, Stefanie and Fanselow, Gisbert and Ishihara, Shinishiro and Petrova, Svetlana and Skopeteas, Stavros and Weskott, Thomas and Zimmermann, Malte}, title = {Syntax}, series = {Interdisciplinary studies on information structure : ISIS}, journal = {Interdisciplinary studies on information structure : ISIS}, number = {7}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1614-4708}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-22253}, pages = {95 -- 133}, year = {2007}, abstract = {The guidelines for syntactic annotation contain the layers that are especially relevant for queries related to the interaction of information structure with syntax. The layers of this level are constituent structure, grammatical functions, and semantic roles.}, language = {en} } @article{BlaszczakDipperFanselowetal.2007, author = {Blaszczak, Joanna and Dipper, Stefanie and Fanselow, Gisbert and Ishihara, Shinishiro and Petrova, Svetlana and Skopeteas, Stavros and Weskott, Thomas and Zimmermann, Malte}, title = {Morphology}, series = {Interdisciplinary studies on information structure : ISIS}, journal = {Interdisciplinary studies on information structure : ISIS}, number = {7}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1614-4708}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-22247}, pages = {55 -- 94}, year = {2007}, abstract = {The guidelines for morphological annotation contain the layers that are necessary for understanding the structure of the words in the object language: morphological segmentation, glossing, and annotation of part-of-speech.}, language = {en} } @inproceedings{Blomme2007, author = {Blomme, R.}, title = {Corotating Interaction Regions and clumping}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-18100}, year = {2007}, abstract = {We present hydrodynamical models for Corotating Interaction Regions, which were used by Lobel (2007) to model the Discrete Absorption Components in HD 64760. We also discuss our failure to model the rotational modulations seen in the same star.}, language = {en} } @article{Bobda2006, author = {Bobda, Augustin Simo}, title = {Irish presence in colonial Cameroon and its linguistic legacy}, series = {The Celtic Englishes IV : the interface between English and the Celtic languages ; proceedings of the fourth international colloquium on the "Celtic Englishes" held at the University of Potsdam in Golm (Germany) from 22-26 September 2004}, journal = {The Celtic Englishes IV : the interface between English and the Celtic languages ; proceedings of the fourth international colloquium on the "Celtic Englishes" held at the University of Potsdam in Golm (Germany) from 22-26 September 2004}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41011}, pages = {217 -- 233}, year = {2006}, abstract = {Content: 1. Survey of Foreign Influences on English in Cameroon 1.1. Early Foreign Influences in the Formation of English in Cameroon 1.2. Later Influences 2. Irish Linguistic Legacy 2.1. Language Policy 2.2. Structural Aspects of English}, language = {en} } @inproceedings{Bogost2008, author = {Bogost, Ian}, title = {The phenomenology of videogames}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-24547}, year = {2008}, abstract = {Jesper Juul has convincingly argued that the conflict over the proper object of study has shifted from "rules or story" to "player or game." But a key component of digital games is still missing from either of these oppositions: that of the computer itself. This paper offers a way of thinking about the phenomenology of the videogame from the perspective of the computer rather than the game or the player.}, language = {en} } @article{BoldrighiniFrigioMaponietal.2020, author = {Boldrighini, Carlo and Frigio, Sandro and Maponi, Pierluigi and Pellegrinotti, Alessandro and Sinai, Yakov G.}, title = {3-D incompressible Navier-Stokes equations: Complex blow-up and related real flows}, series = {Lectures in pure and applied mathematics}, journal = {Lectures in pure and applied mathematics}, number = {6}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-485-2}, issn = {2199-4951}, doi = {10.25932/publishup-47220}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-472201}, pages = {185 -- 194}, year = {2020}, language = {en} } @article{BomansBeckerKleemannetal.2015, author = {Bomans, Dominik J. and Becker, Andrew C. and Kleemann, B. and Weis, K. and Pasquali, A.}, title = {Luminous Wolf-Rayet stars at low metallicity}, series = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015}, journal = {Wolf-Rayet Stars : Proceedings of an International Workshop held in Potsdam, Germany, 1.-5. June 2015}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-87635}, pages = {51 -- 54}, year = {2015}, abstract = {The evolution of massive stars in very low metallicity galaxies is less well observationally constrained than in environments more similar to the Milky Way, M33, or the LMC. We discuss in this contribution the current state of our program to search for and characterize Wolf-Rayet stars (and other massive emission line stars) in low metallicity galaxies in the Local Volume.}, language = {en} } @inproceedings{BonfanteLeRoux2008, author = {Bonfante, Guillaume and Le Roux, Joseph}, title = {Intersection optimization is NP-complete}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27146}, year = {2008}, abstract = {Finite state methods for natural language processing often require the construction and the intersection of several automata. In this paper, we investigate the question of determining the best order in which these intersections should be performed. We take as an example lexical disambiguation in polarity grammars. We show that there is no efficient way to minimize the state complexity of these intersections.}, language = {en} } @article{BorgFichtelmann2017, author = {Borg, Erik and Fichtelmann, Bernd}, title = {Land-water masks: basis for automated pre- and thematic processing of remote sensing data}, series = {Potsdamer Geographische Praxis}, journal = {Potsdamer Geographische Praxis}, number = {12}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, organization = {Fachgruppe Geoinformatik des Institutes f{\"u}r Geographie der Universit{\"a}t Potsdam}, isbn = {978-3-86956-389-3}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-103454}, pages = {77 -- 99}, year = {2017}, abstract = {Earth observation data have become an outstanding basis for analyzing environmental aspects. The increasing availability of remote sensing data is accompanied by an increasing user demand. Within the scope of the COOPERNICUS-initiative, the automatic processing of remote sensing data is important for supplying value- added-information products. The use of additional data like land-water-masks in the context of deriving value-added information products can stabilize and improve the product quality of information products. The authors of this contribution would like to discuss different automated processing algorithms which are based on land-water masks for value-added data interpretation. These developments were supported or accompanied by Prof. Hartmut Asche.}, language = {en} } @article{BornkesselSchlesewskySchlesewsky2019, author = {Bornkessel-Schlesewsky, Ina D. and Schlesewsky, Matthias}, title = {Is it a bird? Is it a mammal?}, series = {Of trees and birds. A Festschrift for Gisbert Fanselow}, journal = {Of trees and birds. A Festschrift for Gisbert Fanselow}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-457-9}, doi = {10.25932/publishup-43253}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-432534}, pages = {275 -- 286}, year = {2019}, language = {en} } @phdthesis{Bortfeld2013, author = {Bortfeld, Silvia}, title = {Analysis of Medicago truncatula transcription factors involved in the arbuscular mycorrhizal symbiosis}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-70664}, school = {Universit{\"a}t Potsdam}, year = {2013}, abstract = {For the first time the transcriptional reprogramming of distinct root cortex cells during the arbuscular mycorrhizal (AM) symbiosis was investigated by combining Laser Capture Mirodissection and Affymetrix GeneChip® Medicago genome array hybridization. The establishment of cryosections facilitated the isolation of high quality RNA in sufficient amounts from three different cortical cell types. The transcript profiles of arbuscule-containing cells (arb cells), non-arbuscule-containing cells (nac cells) of Rhizophagus irregularis inoculated Medicago truncatula roots and cortex cells of non-inoculated roots (cor) were successfully explored. The data gave new insights in the symbiosis-related cellular reorganization processes and indicated that already nac cells seem to be prepared for the upcoming fungal colonization. The mycorrhizal- and phosphate-dependent transcription of a GRAS TF family member (MtGras8) was detected in arb cells and mycorrhizal roots. MtGRAS shares a high sequence similarity to a GRAS TF suggested to be involved in the fungal colonization processes (MtRAM1). The function of MtGras8 was unraveled upon RNA interference- (RNAi-) mediated gene silencing. An AM symbiosis-dependent expression of a RNAi construct (MtPt4pro::gras8-RNAi) revealed a successful gene silencing of MtGras8 leading to a reduced arbuscule abundance and a higher proportion of deformed arbuscules in root with reduced transcript levels. Accordingly, MtGras8 might control the arbuscule development and life-time. The targeting of MtGras8 by the phosphate-dependent regulated miRNA5204* was discovered previously (Devers et al., 2011). Since miRNA5204* is known to be affected by phosphate, the posttranscriptional regulation might represent a link between phosphate signaling and arbuscule development. In this work, the posttranscriptional regulation was confirmed by mis-expression of miRNA5204* in M. truncatula roots. The miRNA-mediated gene silencing affects the MtGras8 transcript abundance only in the first two weeks of the AM symbiosis and the mis-expression lines seem to mimic the phenotype of MtGras8-RNAi lines. Additionally, MtGRAS8 seems to form heterodimers with NSP2 and RAM1, which are known to be key regulators of the fungal colonization process (Hirsch et al., 2009; Gobbato et al., 2012). These data indicate that MtGras8 and miRNA5204* are linked to the sym pathway and regulate the arbuscule development in phosphate-dependent manner.}, language = {en} } @misc{BostonHaleKliegletal.2008, author = {Boston, Marisa Ferrara and Hale, John and Kliegl, Reinhold and Patil, Umesh and Vasishth, Shravan}, title = {Parsing costs as predictors of reading difficulty: An evaluation using the Potsdam Sentence Corpus}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-57139}, year = {2008}, abstract = {The surprisal of a word on a probabilistic grammar constitutes a promising complexity metric for human sentence comprehension difficulty. Using two different grammar types, surprisal is shown to have an effect on fixation durations and regression probabilities in a sample of German readers' eye movements, the Potsdam Sentence Corpus. A linear mixed-effects model was used to quantify the effect of surprisal while taking into account unigram and bigram frequency, word length, and empirically-derived word predictability; the so-called "early" and "late" measures of processing difficulty both showed an effect of surprisal. Surprisal is also shown to have a small but statistically non-significant effect on empirically-derived predictability itself. This work thus demonstrates the importance of including parsing costs as a predictor of comprehension difficulty in models of reading, and suggests that a simple identification of syntactic parsing costs with early measures and late measures with durations of post-syntactic events may be difficult to uphold.}, language = {en} } @misc{BostonHaleVasishthetal.2011, author = {Boston, Marisa Ferrara and Hale, John T. and Vasishth, Shravan and Kliegl, Reinhold}, title = {Parallel processing and sentence comprehension difficulty}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-57159}, year = {2011}, abstract = {Eye fixation durations during normal reading correlate with processing difficulty but the specific cognitive mechanisms reflected in these measures are not well understood. This study finds support in German readers' eyefixations for two distinct difficulty metrics: surprisal, which reflects the change in probabilities across syntactic analyses as new words are integrated, and retrieval, which quantifies comprehension difficulty in terms of working memory constraints. We examine the predictions of both metrics using a family of dependency parsers indexed by an upper limit on the number of candidate syntactic analyses they retain at successive words. Surprisal models all fixation measures and regression probability. By contrast, retrieval does not model any measure in serial processing. As more candidate analyses are considered in parallel at each word, retrieval can account for the same measures as surprisal. This pattern suggests an important role for ranked parallelism in theories of sentence comprehension.}, language = {en} } @article{BottinoChioccariello2015, author = {Bottino, Rosa and Chioccariello, Augusto}, title = {Computational Thinking}, series = {KEYCIT 2014 - Key Competencies in Informatics and ICT}, journal = {KEYCIT 2014 - Key Competencies in Informatics and ICT}, number = {7}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1868-0844}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-82820}, pages = {301 -- 309}, year = {2015}, abstract = {Digital technology has radically changed the way people work in industry, finance, services, media and commerce. Informatics has contributed to the scientific and technological development of our society in general and to the digital revolution in particular. Computational thinking is the term indicating the key ideas of this discipline that might be included in the key competencies underlying the curriculum of compulsory education. The educational potential of informatics has a history dating back to the sixties. In this article, we briefly revisit this history looking for lessons learned. In particular, we focus on experiences of teaching and learning programming. However, computational thinking is more than coding. It is a way of thinking and practicing interactive dynamic modeling with computers. We advocate that learners can practice computational thinking in playful contexts where they can develop personal projects, for example building videogames and/or robots, share and discuss their construction with others. In our view, this approach allows an integration of computational thinking in the K-12 curriculum across disciplines.}, language = {en} } @inproceedings{BouretLanzHillieretal.2007, author = {Bouret, J.-C. and Lanz, T. and Hillier, D. J. and Foellmi, C.}, title = {Clumping in O-type Supergiants}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17662}, year = {2007}, abstract = {We have analyzed the spectra of seven Galactic O4 supergiants, with the NLTE wind code CMFGEN. For all stars, we have found that clumped wind models match well lines from different species spanning a wavelength range from FUV to optical, and remain consistent with Hα data. We have achieved an excellent match of the P V λλ1118, 1128 resonance doublet and N IV λ1718, as well as He II λ4686 suggesting that our physical description of clumping is adequate. We find very small volume filling factors and that clumping starts deep in the wind, near the sonic point. The most crucial consequence of our analysis is that the mass loss rates of O stars need to be revised downward significantly, by a factor of 3 and more compared to those obtained from smooth-wind models.}, language = {en} } @article{Bowler2016, author = {Bowler, Margit}, title = {The status of degrees in Warlpiri}, series = {Proceedings of the Semantics of African, Asian and Austronesian Languages (TripleA) 2}, journal = {Proceedings of the Semantics of African, Asian and Austronesian Languages (TripleA) 2}, editor = {Grubic, Mira and Mucha, Anne}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-92295}, pages = {1 -- 17}, year = {2016}, abstract = {Recent work in semantics has shown that languages can vary in whether or not they include degrees (that is, elements of type < d >) in their semantic ontology. Several authors have argued that their languages of study lack degrees, including Bochnak (2013) for Washo (isolate, USA), Pearson (2009) for Fijian (Austronesian, Fiji), and Beck, et al. (2009) for Motu (Austronesian, Papua New Guinea). In this paper, I follow the tests proposed in Beck, et al. (2009) to assess the status of degrees in Warlpiri (Pama-Nyungan, Australia). I use Warlpiri data collected following the Beck, et al. survey to argue that Warlpiri gradable predicates do not combine with a degree argument. (Like many other Australian languages, adjectival concepts like big and small are expressed using nouns in Warlpiri (Dixon 1982, Bittner \& Hale 1995, among others). I refer to these lexical items as "gradable predicates" in this paper.) This paper represents a first pass at assessing the status of degrees in an Australian language, which have otherwise been unexamined from the point of view of degree semantics.}, language = {en} } @inproceedings{Brass2010, author = {Brass, Stefan}, title = {Range restriction for general formulas}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41521}, year = {2010}, abstract = {Deductive databases need general formulas in rule bodies, not only conjuctions of literals. This is well known since the work of Lloyd and Topor about extended logic programming. Of course, formulas must be restricted in such a way that they can be effectively evaluated in finite time, and produce only a finite number of new tuples (in each iteration of the TP-operator: the fixpoint can still be infinite). It is also necessary to respect binding restrictions of built-in predicates: many of these predicates can be executed only when certain arguments are ground. Whereas for standard logic programming rules, questions of safety, allowedness, and range-restriction are relatively easy and well understood, the situation for general formulas is a bit more complicated. We give a syntactic analysis of formulas that guarantees the necessary properties.}, language = {en} } @article{Bratkin2018, author = {Bratkin, Dimitri}, title = {Manuscripts, Images, and Biographies of Daniel Chwolson}, series = {PaRDES : Zeitschrift der Vereinigung f{\"u}r J{\"u}dische Studien e. V.}, journal = {PaRDES : Zeitschrift der Vereinigung f{\"u}r J{\"u}dische Studien e. V.}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-417884}, pages = {171 -- 189}, year = {2018}, abstract = {The St. Petersburg Branch of the Archive of the Russian Academy (PFA RAN) contains two manuscript biographies of Daniel Chwolson, the Russian-Jewish Orientalist, advocate of Jewish scholarship, and bridge builder to the Breslau Jewish Theological Seminary. They were written by his pupil and colleague, Pavel Kokovtsov, and his grandson Yevgeny Chwolson, respectively. These two texts are studied against the background of published texts and popular opinion of Chwolson in late Imperial Russia. Apart from some details, these manuscripts offer limited additional information as factual sources, most of their contents being mere variation of published texts. However, the biography of Chwolson written by his grandson is a valuable source on the reception of Chwolson and illustrates the potential of further mythological appreciation of his personality and works in the Soviet time as a defense strategy for Chwolson's family. It also contains crucial information on the fate of Chwolson's archive.}, language = {en} } @unpublished{BrauerKarp2006, author = {Brauer, Uwe and Karp, Lavi}, title = {Local existence of classical solutions for the Einstein-Euler system using weighted Sobolev spaces of fractional order}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-30175}, year = {2006}, abstract = {We prove the existence of a class of local in time solutions, including static solutions, of the Einstein-Euler system. This result is the relativistic generalisation of a similar result for the Euler-Poisson system obtained by Gamblin [8]. As in his case the initial data of the density do not have compact support but fall off at infinity in an appropriate manner. An essential tool in our approach is the construction and use of weighted Sobolev spaces of fractional order. Moreover, these new spaces allow us to improve the regularity conditions for the solutions of evolution equations. The details of this construction, the properties of these spaces and results on elliptic and hyperbolic equations will be presented in a forthcoming article.}, language = {en} } @unpublished{BrauerKarp2008, author = {Brauer, Uwe and Karp, Lavi}, title = {Well-posedness of Einstein-Euler systems in asymptotically flat spacetimes}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-30347}, year = {2008}, abstract = {We prove a local in time existence and uniqueness theorem of classical solutions of the coupled Einstein{Euler system, and therefore establish the well posedness of this system. We use the condition that the energy density might vanish or tends to zero at infinity and that the pressure is a certain function of the energy density, conditions which are used to describe simplified stellar models. In order to achieve our goals we are enforced, by the complexity of the problem, to deal with these equations in a new type of weighted Sobolev spaces of fractional order. Beside their construction, we develop tools for PDEs and techniques for hyperbolic and elliptic equations in these spaces. The well posedness is obtained in these spaces.}, language = {en} } @techreport{Braun2018, type = {Working Paper}, author = {Braun, Harald}, title = {Berlin - New York}, series = {KFG Working Paper Series}, journal = {KFG Working Paper Series}, number = {11}, issn = {2509-3770}, doi = {10.25932/publishup-42198}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-421984}, pages = {17}, year = {2018}, abstract = {Beginning in January 2019, the new German government will face a particular new responsibility for world affairs: provided the elections in June 2018 lead to the desired result, Germany will be an elected member of the UN Security Council for two years from January 2019 until December 2020. However, Germany has been a respected and highly relevant member of the United Nations not only during its terms on the Security Council but also in "normal" times. The present article attempts to shed light on a few aspects of Germany's role in the UN during Merkel's chancellorship with an emphasis on her third term (2014-2017), such as the cooperative relationship between Germany and the UN Secretary-General in important policy fields, Germany's financial contributions to the UN, the impact of Germany's EU membership on its UN membership and the country's efforts with regard to the reform of the Security Council. The paper further provides context for Germany's abstention in the vote on Security Council Resolution 1973 on Libya in 2011. It concludes by ascertaining that Germany with its approach of active multilateralism has taken its place as one of the leading nations in Europe and is ready to take on responsibility with its partners to achieve a peaceful and stable world order.}, language = {en} } @unpublished{BraunFeudel1996, author = {Braun, Robert and Feudel, Fred}, title = {Supertransient chaos in the two-dimensional complex Ginzburg-Landau equation}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-14099}, year = {1996}, abstract = {We have shown that the two-dimensional complex Ginzburg-Landau equation exhibits supertransient chaos in a certain parameter range. Using numerical methods this behavior is found near the transition line separating frozen spiral solutions from turbulence. Supertransient chaos seems to be a common phenomenon in extended spatiotemporal systems. These supertransients are characterized by an average transient lifetime which depends exponentially on the size of the system and are due to an underlying nonattracting chaotic set.}, language = {en} } @unpublished{BraunFeudelGuzdar1998, author = {Braun, Robert and Feudel, Fred and Guzdar, Parvez}, title = {The route to chaos for a two-dimensional externally driven flow}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-14717}, year = {1998}, abstract = {We have numerically studied the bifurcations and transition to chaos in a two-dimensional fluid for varying values of the Reynolds number. These investigations have been motivated by experiments in fluids, where an array of vortices was driven by an electromotive force. In these experiments, successive changes leading to a complex motion of the vortices, due to increased forcing, have been explored [Tabeling, Perrin, and Fauve, J. Fluid Mech. 213, 511 (1990)]. We model this experiment by means of two-dimensional Navier-Stokes equations with a special external forcing, driving a linear chain of eight counter-rotating vortices, imposing stress-free boundary conditions in the vertical direction and periodic boundary conditions in the horizontal direction. As the strength of the forcing or the Reynolds number is raised, the original stationary vortex array becomes unstable and a complex sequence of bifurcations is observed. Several steady states and periodic branches and a period doubling cascade appear on the route to chaos. For increasing values of the Reynolds number, shear flow develops, for which the spatial scale is large compared to the scale of the forcing. Furthermore, we have investigated the influence of the aspect ratio of the container as well as the effect of no-slip boundary conditions at the top and bottom, on the bifurcation scenario.}, language = {en} } @unpublished{BraunFeudelSeehafer1997, author = {Braun, Robert and Feudel, Fred and Seehafer, Norbert}, title = {Bifurcations and chaos in an array of forced vortices}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-14564}, year = {1997}, abstract = {We have studied the bifurcation structure of the incompressible two-dimensional Navier-Stokes equations with a special external forcing driving an array of 8×8 counterrotating vortices. The study has been motivated by recent experiments with thin layers of electrolytes showing, among other things, the formation of large-scale spatial patterns. As the strength of the forcing or the Reynolds number is raised the original stationary vortex array becomes unstable and a complex sequence of bifurcations is observed. The bifurcations lead to several periodic branches, torus and chaotic solutions, and other stationary solutions. Most remarkable is the appearance of solutions characterized by structures on spatial scales large compared to the scale of the forcing. We also characterize the different dynamic regimes by means of tracers injected into the fluid. Stretching rates and Hausdorff dimensions of convected line elements are calculated to quantify the mixing process. It turns out that for time-periodic velocity fields the mixing can be very effective.}, language = {en} } @book{BreestBoucheGrundetal.2006, author = {Breest, Martin and Bouch{\´e}, Paul and Grund, Martin and Haubrock, S{\"o}ren and H{\"u}ttenrauch, Stefan and Kylau, Uwe and Ploskonos, Anna and Queck, Tobias and Schreiter, Torben}, title = {Fundamentals of Service-Oriented Engineering}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-939469-35-3}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-33801}, publisher = {Universit{\"a}t Potsdam}, pages = {Getr. Z{\"a}hlung}, year = {2006}, abstract = {Since 2002, keywords like service-oriented engineering, service-oriented computing, and service-oriented architecture have been widely used in research, education, and enterprises. These and related terms are often misunderstood or used incorrectly. To correct these misunderstandings, a deeper knowledge of the concepts, the historical backgrounds, and an overview of service-oriented architectures is demanded and given in this paper.}, language = {en} } @article{BriesemeisterHofmannKuchinkeetal.2012, author = {Briesemeister, Benny B. and Hofmann, Markus J. and Kuchinke, Lars and Jacobs, Arthur M.}, title = {The BAWL databases in research on emotional word processing}, series = {Potsdam cognitive science series}, journal = {Potsdam cognitive science series}, number = {3}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2190-4545}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-62377}, pages = {61 -- 66}, year = {2012}, abstract = {Inhalt: Introduction A two-dimensional affective space: Valence and arousal effects in word processing Higher dimensional affective space: a role of discrete emotions in word processing? A direct comparison of the affective space models References}, language = {en} } @article{BrilkeWerner2021, author = {Brilke, Clara and Werner, Eva}, title = {I am not sure that I feel like singing, thanks very much for asking!}, series = {thersites 12}, volume = {2020}, journal = {thersites 12}, number = {12}, editor = {Rollinger, Christian}, issn = {2364-7612}, doi = {10.34679/thersites.vol12.189}, pages = {104 -- 115}, year = {2021}, abstract = {In her writings on ancient myth, the British author Natalie Haynes moves women to the centre of attention. Her two latest books, A Thousand Ships and Pandora's Jar - a fiction novel and a non-fiction one - approach this topic from two different perspectives. This interview takes stock of Haynes' motives and methodology as well as of the challenges she faces in the process of writing.}, language = {en} } @misc{BringmannMutanyattaComarMaksimenkaetal.2008, author = {Bringmann, Gerhard and Mutanyatta-Comar, Joan and Maksimenka, Katja and Wanjohi, John M. and Heydenreich, Matthias and Brun, Reto and M{\"u}ller, Werner E. G. and Peter, Martin and Midiwo, Jacob O. and Yenesew, Abiy}, title = {Joziknipholones A and B : the First Dimeric Phenylanthraquinones, from the Roots of Bulbine frutescens}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-42638}, year = {2008}, abstract = {From the roots of the African plant Bulbine frutescens (Asphodelaceae), two unprecedented novel dimeric phenylanthraquinones, named joziknipholones A and B, possessing axial and centrochirality, were isolated, together with six known compounds. Structural elucidation of the new metabolites was achieved by spectroscopic and chiroptical methods, by reductive cleavage of the central bond between the monomeric phenylanthraquinone and -anthrone portions with sodium dithionite, and by quantum chemical CD calculations. Based on the recently revised absolute axial configuration of the parent phenylanthraquinones, knipholone and knipholone anthrone, the new dimers were attributed to possess the P-configuration (i.e., with the acetyl portions below the anthraquinone plane) at both axes in the case of joziknipholone A, whereas in joziknipholone B, the knipholone part was found to be M-configured. Joziknipholones A and B are active against the chloroquine resistant strain K1 of the malaria pathogen, Plasmodium falciparum, and show moderate activity against murine leukemic lymphoma L5178y cells.}, language = {en} } @article{Brodehser2013, author = {Brodehser, Peter}, title = {Quo Vadis Infrastructure Financing?}, series = {Protokollband 2013}, journal = {Protokollband 2013}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-68738}, pages = {119 -- 132}, year = {2013}, abstract = {1. Introduction 2. The project finance market in 2006/2007 3. Areas affected by the global financial crisis 4. Areas affected by the euro financial crisis 5. Basel III and the consequences for infrastructure financing 6. Outlook - Where do we go from here?}, language = {en} }