@inproceedings{KiyLucke2014,
  author    = {Kiy, Alexander and Lucke, Ulrike},
  title     = {Learning analytic tools in practical comparison},
  series = {DeLFI Workshops of the 12th e-Learning Conference of the German Computer Society, DeLFI 2014; Freiburg; Germany; 15 September 2014 through 15 September 2014 CEUR Workshop Proceedings},
  volume    = {2014},
  booktitle = {DeLFI Workshops of the 12th e-Learning Conference of the German Computer Society, DeLFI 2014; Freiburg; Germany; 15 September 2014 through 15 September 2014 CEUR Workshop Proceedings},
  number    = {1227},
  editor    = {Rensing, C. and Trahasch, S.},
  publisher = {Technical University of Aachen},
  address   = {Aachen},
  issn      = {1613-0073},
  pages     = {104 -- 111},
  year      = {2014},
  language  = {en}
}
@incollection{KiyLuckeZoerner2014,
  author    = {Kiy, Alexander and Lucke, Ulrike and Zoerner, Dietmar},
  title     = {An adaptive personal learning environment architecture},
  series = {Architecture of Computing Systems - ARCS 2014 Lecture Notes in Computer Science},
  volume    = {2014},
  booktitle = {Architecture of Computing Systems - ARCS 2014 Lecture Notes in Computer Science},
  number    = {8350},
  publisher = {Springer},
  isbn      = {978-3-319-04890-1},
  publisher      = {Universit{\"a}t Potsdam},
  pages     = {60 -- 71},
  year      = {2014},
  abstract  = {Institutions are facing the challenge to integrate legacy systems with steadily growing new ones, using different technologies and interaction patterns. With the demand of offering the best potential of all systems, several not matching systems including their functions have to be aggregated and offered in a useable way. This paper presents an adaptive, generalizable and self-organized Personal Learning Environment (PLE) framework with the potential to integrate several heterogeneous services using a service-oriented architecture. First, a general overview over the field is given, followed by the description of the core components of the PLE framework. A prototypical implementation is presented. Finally, it's shown how the PLE framework can be dynamically adapted to a changing system environment, reflecting experiences from first user studies.},
  language  = {en}
}
@inproceedings{KnothKiy2014,
  author    = {Knoth, Alexander Henning and Kiy, Alexander},
  title     = {(Self-)confident through the introductory study phase with the Reflect App},
  series = {CEUR Workshop Proceedings},
  booktitle = {CEUR Workshop Proceedings},
  number    = {1227},
  publisher = {CEUR-WS},
  address   = {Freiburg},
  issn      = {1613-0073},
  pages     = {172 -- 179},
  year      = {2014},
  language  = {en}
}
@article{Guenther2014,
  author    = {G{\"u}nther, Oliver},
  title     = {Big Data: What is it? And what does it mean for science, economy and society?},
  series = {Informatik-Spektrum},
  volume    = {37},
  journal   = {Informatik-Spektrum},
  number    = {2},
  publisher = {Springer Verlag},
  address   = {Heidelberg},
  issn      = {0170-6012},
  doi       = {10.1007/s00287-014-0783-7},
  pages     = {85 -- 86},
  year      = {2014},
  language  = {en}
}
@misc{CaoHerzschuhNietal.2014,
  author    = {Cao, Xianyong and Herzschuh, Ulrike and Ni, Jian and Zhao, Yan and B{\"o}hmer, Thomas},
  title     = {Spatial and temporal distributions of major tree taxa in eastern continental Asia during the last 22,000 years},
  series = {The Holocene},
  volume    = {25},
  journal   = {The Holocene},
  number    = {1},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-404176},
  pages     = {13},
  year      = {2014},
  abstract  = {This study investigates the spatial and temporal distributions of 14 key arboreal taxa and their driving forces during the last 22,000 calendar years before ad 1950 (kyr BP) using a taxonomically harmonized and temporally standardized fossil pollen dataset with a 500-year resolution from the eastern part of continental Asia. Logistic regression was used to estimate pollen abundance thresholds for vegetation occurrence (presence or dominance), based on modern pollen data and present ranges of 14 taxa in China. Our investigation reveals marked changes in spatial and temporal distributions of the major arboreal taxa. The thermophilous (Castanea, Castanopsis, Cyclobalanopsis, Fagus, Pterocarya) and eurythermal (Juglans, Quercus, Tilia, Ulmus) broadleaved tree taxa were restricted to the current tropical or subtropical areas of China during the Last Glacial Maximum (LGM) and spread northward since c. 14.5 kyr BP. Betula and conifer taxa (Abies, Picea, Pinus), in contrast, retained a wider distribution during the LGM and showed no distinct expansion direction during the Late Glacial. Since the late mid-Holocene, the abundance but not the spatial extent of most trees decreased. The changes in spatial and temporal distributions for the 14 taxa are a reflection of climate changes, in particular monsoonal moisture, and, in the late Holocene, human impact. The post-LGM expansion patterns in eastern continental China seem to be different from those reported for Europe and North America, for example, the westward spread for eurythermal broadleaved taxa.},
  language  = {en}
}
@misc{Scheller2014,
  author    = {Scheller, Henrik},
  title     = {Ed Turner, political parties and public policy in the German L{\"a}nder},
  series = {Party politics},
  journal   = {Party politics},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-404163},
  pages     = {2},
  year      = {2014},
  abstract  = {kein abstract vorhanden},
  language  = {en}
}
@misc{ReitererFestman2014,
  author    = {Reiterer, Susanne Maria and Festman, Julia},
  title     = {Special issue: multilingual brains},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {393},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-404188},
  pages     = {2},
  year      = {2014},
  abstract  = {keine abstracts vorhanden},
  language  = {en}
}
@misc{TianHerzschuhMischkeetal.2014,
  author    = {Tian, Fang and Herzschuh, Ulrike and Mischke, Steffen and Schl{\"u}tz, Frank},
  title     = {What drives the recent intensified vegetation degradation in Mongolia},
  series = {The Holocene},
  journal   = {The Holocene},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-404201},
  pages     = {10},
  year      = {2014},
  abstract  = {This study examines the course and driving forces of recent vegetation change in the Mongolian steppe. A sediment core covering the last 55years from a small closed-basin lake in central Mongolia was analyzed for its multi-proxy record at annual resolution. Pollen analysis shows that highest abundances of planted Poaceae and highest vegetation diversity occurred during 1977-1992, reflecting agricultural development in the lake area. A decrease in diversity and an increase in Artemisia abundance after 1992 indicate enhanced vegetation degradation in recent times, most probably because of overgrazing and farmland abandonment. Human impact is the main factor for the vegetation degradation within the past decades as revealed by a series of redundancy analyses, while climate change and soil erosion play subordinate roles. High Pediastrum (a green algae) influx, high atomic total organic carbon/total nitrogen (TOC/TN) ratios, abundant coarse detrital grains, and the decrease of C-13(org) and N-15 since about 1977 but particularly after 1992 indicate that abundant terrestrial organic matter and nutrients were transported into the lake and caused lake eutrophication, presumably because of intensified land use. Thus, we infer that the transition to a market economy in Mongolia since the early 1990s not only caused dramatic vegetation degradation but also affected the lake ecosystem through anthropogenic changes in the catchment area.},
  language  = {en}
}
@misc{BondueBeier2014,
  author    = {Bond{\"u}, Rebecca and Beier, Sophia},
  title     = {Two of a kind?},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {391},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-404199},
  pages     = {19},
  year      = {2014},
  abstract  = {School attacks are attracting increasing attention in aggression research. Recent systematic analyses provided new insights into offense and offender characteristics. Less is known about attacks in institutes of higher education (e.g., universities). It is therefore questionable whether the term "school attack" should be limited to institutions of general education or could be extended to institutions of higher education. Scientific literature is divided in distinguishing or unifying these two groups and reports similarities as well as differences. We researched 232 school attacks and 45 attacks in institutes of higher education throughout the world and conducted systematic comparisons between the two groups. The analyses yielded differences in offender (e.g., age, migration background) and offense characteristics (e.g., weapons, suicide rates), and some similarities (e.g., gender). Most differences can apparently be accounted for by offenders' age and situational influences. We discuss the implications of our findings for future research and the development of preventative measures.},
  language  = {en}
}
@misc{BondueScheithauer2014,
  author    = {Bond{\"u}, Rebecca and Scheithauer, Herbert},
  title     = {Leaking and death-threats by students},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {388},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-404121},
  pages     = {17},
  year      = {2014},
  abstract  = {Leaking comprises observable behavior or statements that signal intentions of committing a violent offense and is considered an important warning sign for school shootings. School staff who are confronted with leaking have to assess its seriousness and react appropriately - a difficult task, because knowledge about leaking is sparse. The present study, therefore, examined how frequently leaking occurs in schools and how teachers identify leaking and respond to it. To achieve this aim, we informed teachers from eight schools in Germany about the definition of leaking and other warning signs and risk factors for school shootings in a one-hour information session. Teachers were then asked to report cases of leaking over a six- to nine-month period and to answer a questionnaire on leaking and its treatment after the information session and six to nine months later. Our results suggest that leaking is a relevant problem in German schools. Teachers mostly rated the information session positively and benefited in several aspects (e.g. reported more perceived courses of action or improved knowledge about leaking), but also expressed a constant need for support. Our findings highlight teachers' needs for further support and training and may be used in the planning of prevention measures for school shootings.},
  language  = {en}
}