@phdthesis{Bajerski2013,
  author    = {Bajerski, Felizitas},
  title     = {Bacterial communities in glacier forefields of the Larsemann Hills, East Antarctica : structure, development \& adaptation},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-67424},
  school      = {Universit{\"a}t Potsdam},
  year      = {2013},
  abstract  = {Antarctic glacier forfields are extreme environments and pioneer sites for ecological succession. The Antarctic continent shows microbial community development as a natural laboratory because of its special environment, geographic isolation and little anthropogenic influence. Increasing temperatures due to global warming lead to enhanced deglaciation processes in cold-affected habitats and new terrain is becoming exposed to soil formation and accessible for microbial colonisation. This study aims to understand the structure and development of glacier forefield bacterial communities, especially how soil parameters impact the microorganisms and how those are adapted to the extreme conditions of the habitat. To this effect, a combination of cultivation experiments, molecular, geophysical and geochemical analysis was applied to examine two glacier forfields of the Larsemann Hills, East Antarctica. Culture-independent molecular tools such as terminal restriction length polymorphism (T-RFLP), clone libraries and quantitative real-time PCR (qPCR) were used to determine bacterial diversity and distribution. Cultivation of yet unknown species was carried out to get insights in the physiology and adaptation of the microorganisms. Adaptation strategies of the microorganisms were studied by determining changes of the cell membrane phospholipid fatty acid (PLFA) inventory of an isolated bacterium in response to temperature and pH fluctuations and by measuring enzyme activity at low temperature in environmental soil samples. The two studied glacier forefields are extreme habitats characterised by low temperatures, low water availability and small oligotrophic nutrient pools and represent sites of different bacterial succession in relation to soil parameters. The investigated sites showed microbial succession at an early step of soil formation near the ice tongue in comparison to closely located but rather older and more developed soil from the forefield. At the early step the succession is influenced by a deglaciation-dependent areal shift of soil parameters followed by a variable and prevalently depth-related distribution of the soil parameters that is driven by the extreme Antarctic conditions. The dominant taxa in the glacier forefields are Actinobacteria, Acidobacteria, Proteobacteria, Bacteroidetes, Cyanobacteria and Chloroflexi. The connection of soil characteristics with bacterial community structure showed that soil parameter and soil formation along the glacier forefield influence the distribution of certain phyla. In the early step of succession the relative undifferentiated bacterial diversity reflects the undifferentiated soil development and has a high potential to shift according to past and present environmental conditions. With progressing development environmental constraints such as water or carbon limitation have a greater influence. Adapting the culturing conditions to the cold and oligotrophic environment, the number of culturable heterotrophic bacteria reached up to 108 colony forming units per gram soil and 148 isolates were obtained. Two new psychrotolerant bacteria, Herbaspirillum psychrotolerans PB1T and Chryseobacterium frigidisoli PB4T, were characterised in detail and described as novel species in the family of Oxalobacteraceae and Flavobacteriaceae, respectively. The isolates are able to grow at low temperatures tolerating temperature fluctuations and they are not specialised to a certain substrate, therefore they are well-adapted to the cold and oligotrophic environment. The adaptation strategies of the microorganisms were analysed in environmental samples and cultures focussing on extracellular enzyme activity at low temperature and PLFA analyses. Extracellular phosphatases (pH 11 and pH 6.5), β-glucosidase, invertase and urease activity were detected in the glacier forefield soils at low temperature (14°C) catalysing the conversion of various compounds providing necessary substrates and may further play a role in the soil formation and total carbon turnover of the habitat. The PLFA analysis of the newly isolated species C. frigidisoli showed that the cold-adapted strain develops different strategies to maintain the cell membrane function under changing environmental conditions by altering the PLFA inventory at different temperatures and pH values. A newly discovered fatty acid, which was not found in any other microorganism so far, significantly increased at decreasing temperature and low pH and thus plays an important role in the adaption of C. frigidisoli. This work gives insights into the diversity, distribution and adaptation mechanisms of microbial communities in oligotrophic cold-affected soils and shows that Antarctic glacier forefields are suitable model systems to study bacterial colonisation in connection to soil formation.},
  language  = {en}
}
@article{BaumannLucas2013,
  author    = {Baumann, Annette and Lucas, Reeh},
  title     = {Folgende Module k{\"o}nnten Sie auch interessieren?},
  series = {E-Learning Symposium 2012 : Aktuelle Anwendungen, innovative Prozesse und neueste Ergebnisse aus der E-Learning-Praxis ; Potsdam, 17. November 2012},
  journal   = {E-Learning Symposium 2012 : Aktuelle Anwendungen, innovative Prozesse und neueste Ergebnisse aus der E-Learning-Praxis ; Potsdam, 17. November 2012},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  doi       = {10.25932/publishup-44215},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-442157},
  pages     = {67 -- 68},
  year      = {2013},
  abstract  = {Im Hochschulalltag begegnen sich Dozenten und Studenten als zwei Gruppen mit entgegengesetzten Rollen, z.B. als Lehrende und Lernende, als Forscher und studentische Hilfskr{\"a}fte. Die Ber{\"u}hrungspunkte beider Gruppen er{\"o}ffnen neue Chancen im Student Life Cycle f{\"u}r zielgerichtete Kooperationen - von der Studierende f{\"u}r Entscheidungsprozesse im Fortgang ihres Studiums und Dozenten f{\"u}r die Gewinnung von Masterstudenten und Doktoranden profitieren k{\"o}nnen. Kein E-Learning im klassischen Sinn, aber eine praktische Anwendung von Empfehlungstechniken auf Basis eines Campus Management Systems werden Posterbeitrag und Live-Demo vorstellen, mit der zur Zeit verschiedene Zielrichtungen f{\"u}r die Empfehlung von Wahlmodulen und eine kohorten-basierte Informationsaufbereitung im Curricula Support experimentell untersucht werden.},
  language  = {de}
}
@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{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{BeusterElkinaFortenbacheretal.2013,
  author    = {Beuster, Liane and Elkina, Margarita and Fortenbacher, Albrecht and Kappe, Leonard and Merceron, Agathe and Pursian, Andreas and Schwarzrock, Sebastian and Wenzlaff, Boris},
  title     = {Prototyp einer plattformunabh{\"a}ngigen Learning Analytics Applikation - fokussiert auf Nutzungsanalyse und Pfadanalyse},
  series = {E-Learning Symposium 2012 : Aktuelle Anwendungen, innovative Prozesse und neueste Ergebnisse aus der E-Learning-Praxis ; Potsdam, 17. November 2012},
  journal   = {E-Learning Symposium 2012 : Aktuelle Anwendungen, innovative Prozesse und neueste Ergebnisse aus der E-Learning-Praxis ; Potsdam, 17. November 2012},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  doi       = {10.25932/publishup-44216},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-442166},
  pages     = {69 -- 72},
  year      = {2013},
  abstract  = {Bei der hier vorgestellten Anwendung handelt es sich um den Prototypen einer webbasierten Applikation zur Analyse von Nutzungsdaten der AnwenderInnen von eLearning-Angeboten. Die Applikation wurde dabei explizit f{\"u}r unterschiedliche Zielgruppen wie eLearning-AnbieterInnen, Lehrende und WissenschaftlerInnen entworfen. Die Anwendung kann Daten verschiedener Lernplattformen auswerten und nutzt hierbei Methoden des Educational Data Mining. Sie unterst{\"u}tzt dabei sowohl klassische Plattformen mit personalisiertem Zugang sowie offene Plattformen, deren Angebote ohne Registrierung zug{\"a}nglich sind.},
  language  = {de}
}
@article{Birke2013,
  author    = {Birke, Rainer},
  title     = {Internationale Abkommen zur Korruptionsbek{\"a}mpfung, Bestechungsvorschriften des deutschen sowie des russischen Strafrechts und die Gastfreundschaft},
  series = {Schriften zum deutschen und russischen Strafrecht},
  journal   = {Schriften zum deutschen und russischen Strafrecht},
  number    = {3},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  issn      = {2191-0898},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-67571},
  pages     = {75 -- 82},
  year      = {2013},
  language  = {de}
}
@article{Bobrowa2013,
  author    = {Bobrowa, Vera K.},
  title     = {Einige Aspekte der Teilnahme des Bevollm{\"a}chtigten Vertreters des Pr{\"a}sidenten der Russischen F{\"o}deration im verfassungsgerichtlichen Verfahren},
  series = {Verfassungsgerichtsbarkeit in der Russischen F{\"o}deration und in der Bundesrepublik Deutschland : Rundtischgespr{\"a}ch an der Moskauer Staatlichen Juristischen Kutafin-Universit{\"a}t am 9. und 10. Oktober 2012},
  journal   = {Verfassungsgerichtsbarkeit in der Russischen F{\"o}deration und in der Bundesrepublik Deutschland : Rundtischgespr{\"a}ch an der Moskauer Staatlichen Juristischen Kutafin-Universit{\"a}t am 9. und 10. Oktober 2012},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-68265},
  pages     = {45 -- 55},
  year      = {2013},
  language  = {de}
}
@article{Chuchaev2013,
  author    = {Chuchaev, Alexander},
  title     = {Strafbarkeit des Bannbruchs},
  series = {Schriften zum deutschen und russischen Strafrecht},
  journal   = {Schriften zum deutschen und russischen Strafrecht},
  number    = {3},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  issn      = {2191-0898},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-67488},
  pages     = {21 -- 24},
  year      = {2013},
  language  = {de}
}
@article{DagieneJevsikovaSchuleetal.2013,
  author    = {Dagiene, Valentina and Jevsikova, Tatjana and Schule, Carsten and Sentance, Sue and Thota, Neena},
  title     = {A comparison of current trends within computer science teaching in school in Germany and the UK},
  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-64504},
  pages     = {63 -- 75},
  year      = {2013},
  abstract  = {In the last two years, CS as a school subject has gained a lot of attention worldwide, although different countries have differing approaches to and experiences of introducing CS in schools. This paper reports on a study comparing current trends in CS at school, with a major focus on two countries, Germany and UK. A survey was carried out of a number of teaching professionals and experts from the UK and Germany with regard to the content and delivery of CS in school. An analysis of the quantitative data reveals a difference in foci in the two countries; putting this into the context of curricular developments we are able to offer interpretations of these trends and suggest ways in which curricula in CS at school should be moving forward.},
  language  = {en}
}