@article{FroitzheimBergnerSchroeder2015, author = {Froitzheim, Manuel and Bergner, Nadine and Schroeder, Ulrik}, title = {Android-Workshop zur Vertiefung der Kenntnisse bez{\"u}glich Datenstrukturen und Programmierung in der Studieneingangsphase}, series = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, volume = {2015}, journal = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, number = {9}, editor = {Schwill, Andreas}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-80247}, pages = {11 -- 26}, year = {2015}, abstract = {Die Studieneingangsphase stellt f{\"u}r Studierende eine Schl{\"u}sselphase des terti{\"a}ren Ausbildungsabschnitts dar. Fachwissenschaftliches Wissen wird praxisfern vermittelt und die Studierenden k{\"o}nnen die Zusammenh{\"a}nge zwischen den Themenfeldern der verschiedenen Vorlesungen nicht erkennen. Zur Verbesserung der Situation wurde ein Workshop entwickelt, der die Verbindung der Programmierung und der Datenstrukturen vertieft. Dabei wird das Spiel Go-Moku1 als Android-App von den Studierenden selbst{\"a}ndig entwickelt. Die Kombination aus Software (Java, Android-SDK) und Hardware (Tablet-Computer) f{\"u}r ein kleines realistisches Softwareprojekt stellt f{\"u}r die Studierenden eine neue Erfahrung dar.}, language = {de} } @misc{MardoukhiJeonMetzler2015, author = {Mardoukhi, Yousof and Jeon, Jae-Hyung and Metzler, Ralf}, title = {Geometry controlled anomalous diffusion in random fractal geometries}, series = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe}, number = {980}, issn = {1866-8372}, doi = {10.25932/publishup-47486}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-474864}, pages = {30134 -- 30147}, year = {2015}, abstract = {We investigate the ergodic properties of a random walker performing (anomalous) diffusion on a random fractal geometry. Extensive Monte Carlo simulations of the motion of tracer particles on an ensemble of realisations of percolation clusters are performed for a wide range of percolation densities. Single trajectories of the tracer motion are analysed to quantify the time averaged mean squared displacement (MSD) and to compare this with the ensemble averaged MSD of the particle motion. Other complementary physical observables associated with ergodicity are studied, as well. It turns out that the time averaged MSD of individual realisations exhibits non-vanishing fluctuations even in the limit of very long observation times as the percolation density approaches the critical value. This apparent non-ergodic behaviour concurs with the ergodic behaviour on the ensemble averaged level. We demonstrate how the non-vanishing fluctuations in single particle trajectories are analytically expressed in terms of the fractal dimension and the cluster size distribution of the random geometry, thus being of purely geometrical origin. Moreover, we reveal that the convergence scaling law to ergodicity, which is known to be inversely proportional to the observation time T for ergodic diffusion processes, follows a power-law ∼T-h with h < 1 due to the fractal structure of the accessible space. These results provide useful measures for differentiating the subdiffusion on random fractals from an otherwise closely related process, namely, fractional Brownian motion. Implications of our results on the analysis of single particle tracking experiments are provided.}, language = {en} } @article{Gosset2015, author = {Gosset, E.}, title = {Studies of WR+O colliding-wind binaries}, 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-opus4-88247}, pages = {305 -- 308}, year = {2015}, abstract = {Two of the main physical parameters that govern the massive star evolution, the mass and the mass-loss rate, are still poorly determined from the observational point of view. Only binary systems could provide well constrained masses and colliding-wind binaries could bring some constraints on the mass-loss rate. Therefore, colliding-wind binaries turn out to be very promising objects. In this framework, we present detailed studies of basic observational data obtained with the XMM-Newton facility and combined with ground-based observations and other data. We expose the results for two particularly interesting WR+O colliding-wind binaries: WR22 and WR21a.}, language = {en} } @article{LaengrichSchulze2015, author = {L{\"a}ngrich, Matthias and Schulze, J{\"o}rg}, title = {Angewandte Output-Orientierung}, series = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, volume = {2015}, journal = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, number = {9}, editor = {Schwill, Andreas and Schubert, Sigrid}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-80299}, pages = {93 -- 107}, year = {2015}, abstract = {Erstsemester-Studierende sind mit den Anforderungen des Lehr-/ Lernprozess einer Universit{\"a}t oder Fachhochschule noch nicht vertraut. Ihre Erwartungen orientieren sich vielmehr an ihrer bisherigen Lerngeschichte (Abitur, Fachabitur, o. {\"a}.). Neben den fachlichen Anforderungen des ersten Semesters m{\"u}ssen die Studierenden also auch Ver{\"a}nderungen im Lehr-/Lernprozess erkennen und bew{\"a}ltigen. Es wird anhand einer Output-orientierten informatischen Lehrveranstaltung aufgezeigt, dass sich aus deren strengen Anforderungen der Messbarkeit klare Kompetenzbeschreibungen ergeben, die besonders dem Orientierungsbed{\"u}rfnis Erstsemester-Studierender entgegenkommen.}, language = {de} } @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} } @article{SanyalMoriyaLanger2015, author = {Sanyal, D. and Moriya, T. J. and Langer, N.}, title = {Envelope inflation in Wolf-Rayet stars and extended supernova shock breakout signals}, 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-opus4-88062}, pages = {213 -- 216}, year = {2015}, abstract = {Massive, luminous stars reaching the Eddington limit in their interiors develop very dilute, extended envelopes. This effect is called envelope inflation. If the progenitors of Type Ib/c supernovae, which are believed to be Wolf-Rayet (WR) stars, have inflated envelopes then the shock breakout signals diffuse in them and can extend their rise times significantly. We show that our inflated, hydrogen-free, WR stellar models with a radius of ∼R⊙ can have shock breakout signals longer than ∼ 60 s. The puzzlingly long shock breakout signal observed in the Type Ib SN 2008D can be explained by an inflated progenitor envelope, and more such events might argue in favour of existence of inflated envelopes in general.}, 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{Crowther2015, author = {Crowther, P. A.}, title = {Wolf-Rayet content of the Milky Way}, 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-opus4-87562}, pages = {21 -- 26}, year = {2015}, abstract = {An overview of the known Wolf-Rayet (WR) population of the Milky Way is presented, including a brief overview of historical catalogues and recent advances based on infrared photometric and spectroscopic observations resulting in the current census of 642 (vl.13 online catalogue). The observed distribution of WR stars is considered with respect to known star clusters, given that ≤20\% of WR stars in the disk are located in clusters. WN stars outnumber WC stars at all galactocentric radii, while early-type WC stars are strongly biased against the inner Milky Way. Finally, recent estimates of the global WR population in the Milky Way are reassessed, with 1,200±100 estimated, such that the current census may be 50\% complete. A characteristic WR lifetime of 0.25 Myr is inferred for an initial mass threshold of 25 M⊙.}, language = {en} } @article{Weis2015, author = {Weis, K.}, title = {Family ties of WR to LBV nebulae yielding clues for stellar evolution}, 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-opus4-87949}, pages = {167 -- 170}, year = {2015}, abstract = {Luminous Blue Variables (LBVs) are stars is a transitional phase massive stars may enter while evolving from main-sequence to Wolf-Rayet stars. The to LBVs intrinsic photometric variability is based on the modulation of the stellar spectrum. Within a few years the spectrum shifts from OB to AF type and back. During their cool phase LBVs are close to the Humphreys-Davidson (equivalent to Eddington/Omega-Gamma) limit. LBVs have a rather high mass loss rate, with stellar winds that are fast in the hot and slower in the cool phase of an LBV. These alternating wind velocities lead to the formation of LBV nebulae by wind-wind interactions. A nebula can also be formed in a spontaneous giant eruption in which larger amounts of mass are ejected. LBV nebulae are generally small (< 5 pc) mainly gaseous circumstellar nebulae, with a rather large fraction of LBV nebulae being bipolar. After the LBV phase the star will turn into a Wolf-Rayet star, but note that not all WR stars need to have passed the LBV phase. Some follow from the RSG and the most massive directly from the MS phase. In general WRs have a large mass loss and really fast stellar winds. The WR wind may interact with winds of earlier phases (MS, RSG) to form WR nebulae. As for WR with LBV progenitors the scenario might be different, here no older wind is present but an LBV nebula! The nature of WR nebulae are therefore manifold and in particular the connection (or family ties) of WR to LBV nebulae is important to understand the transition between these two phases, the evolution of massive stars, their winds, wind-wind and wind-nebula interactions. Looking at the similarities and differences of LBV and WR nebula, figuring what is a genuine LBV and WR nebula are the basic question addressed in the analysis presented here.}, language = {en} } @article{Kueker2015, author = {K{\"u}ker, Manfred}, title = {Magnetospheres of massive 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-opus4-87864}, pages = {143 -- 146}, year = {2015}, abstract = {We study the interaction of line-driven winds from massive stars with the magnetic field rooted in these stars by carrying out numerical simulations using the Nirvana MHD code in 2D in spherical polar coordinates. The code's adaptive mesh refinement feature allows high spatial resolution across the whole simulation box. We study both O and Wolf-Rayet stars for a range of magnetic field strengths from weak to strong as measured by the confinement parameter. For weak fields our simulations show that the initially dipolar field opens up far away from the star and a thin disk-like structure forms in the equatorial plane of the magnetic field. For stronger fields the disk is disrupted close to the stellar surface and closed field lines persist at low latitudes. For very strong fields a pronounced magnetosphere forms where the gas is forced to move along the field lines and eventually falls back to the stellar surface.}, language = {en} } @article{FalcetaGoncalves2015, author = {Falceta-Goncalves, D.}, title = {Magnetic fields, non-thermal radiation and particle acceleration in colliding winds of WR-O 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-opus4-88211}, pages = {289 -- 292}, year = {2015}, abstract = {Non-thermal emission has been detected in WR-stars for many years at long wavelengths spectral range, in general attributed to synchrotron emission. Two key ingredients are needed to explain such emissions, namely magnetic fields and relativistic particles. Particles can be accelerated to relativistic speeds by Fermi processes at strong shocks. Therefore, strong synchrotron emission is usually attributed to WR binarity. The magnetic field may also be amplified at shocks, however the actual picture of the magnetic field geometry, intensity, and its role on the acceleration of particles at WR binary systems is still unclear. In this work we discuss the recent developments in MHD modelling of wind-wind collision regions by means of numerical simulations, and the coupled particle acceleration processes related.}, language = {en} } @article{DwarkadasRosenberg2015, author = {Dwarkadas, Vikram V. and Rosenberg, D.}, title = {X-ray Emission from Ionized Wind-Bubbles around 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-opus4-88301}, pages = {329 -- 332}, year = {2015}, abstract = {Using a code that employs a self-consistent method for computing the effects of photoionization on circumstellar gas dynamics, we model the formation of wind-driven nebulae around massive Wolf-Rayet (W-R) stars. Our algorithm incorporates a simplified model of the photo-ionization source, computes the fractional ionization of hydrogen due to the photoionizing flux and recombination, and determines self-consistently the energy balance due to ionization, photo-heating and radiative cooling. We take into account changes in stellar properties and mass-loss over the star's evolution. Our multi-dimensional simulations clearly reveal the presence of strong ionization front instabilities. Using various X-ray emission models, and abundances consistent with those derived for W-R nebulae, we compute the X-ray flux and spectra from our wind bubble models. We show the evolution of the X-ray spectral features with time over the evolution of the star, taking the absorption of the X-rays by the ionized bubble into account. Our simulated X-ray spectra compare reasonably well with observed spectra of Wolf-Rayet bubbles. They suggest that X-ray nebulae around massive stars may not be easily detectable, consistent with observations.∗}, language = {en} } @article{Huefner2015, author = {H{\"u}fner, Klaus}, title = {Konzepte f{\"u}r die Neustrukturierung des Systems der Vereinten Nationen}, series = {Konzepte f{\"u}r die Reform der Vereinten Nationen : 12. Potsdamer UNO-Konferenz am 28.Juni 2014}, volume = {2015}, journal = {Konzepte f{\"u}r die Reform der Vereinten Nationen : 12. Potsdamer UNO-Konferenz am 28.Juni 2014}, number = {11}, editor = {Zimmermann, Andreas}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-80147}, pages = {9 -- 28}, year = {2015}, abstract = {I. Einleitung II. Zum Ergebnisdokument des Weltgipfels vom September 2005 III. Alle 10 Jahre ein neuer Vorschlag zur Charta-Revision? IV. Schlussbemerkungen V Literatur}, language = {de} } @article{Baeriswyl2015, author = {Baeriswyl, Pascale}, title = {Moderne Arbeitsmethoden f{\"u}r einen wirksameren UNO-Sicherheitsrat}, series = {Konzepte f{\"u}r die Reform der Vereinten Nationen : 12. Potsdamer UNO-Konferenz am 28.Juni 2014}, volume = {2015}, journal = {Konzepte f{\"u}r die Reform der Vereinten Nationen : 12. Potsdamer UNO-Konferenz am 28.Juni 2014}, number = {11}, editor = {Zimmermann, Andreas}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-80159}, pages = {29 -- 47}, year = {2015}, abstract = {I. Der UNO-Sicherheitsrat: Work in Progress or in Regress? II. Geschichte der Arbeitsmethoden: Szenen und Akteure III. Arbeitsmechanik im Alltag: Mut zur Innovation! IV. Schlussfolgerung: Vom Kulturwandel zur Strukturreform?}, language = {de} } @article{Martens2015, author = {Martens, Jens}, title = {Vom Konsultativstatus zu Stakeholder-Partnerschaften}, series = {Konzepte f{\"u}r die Reform der Vereinten Nationen : 12. Potsdamer UNO-Konferenz am 28.Juni 2014}, volume = {2015}, journal = {Konzepte f{\"u}r die Reform der Vereinten Nationen : 12. Potsdamer UNO-Konferenz am 28.Juni 2014}, number = {11}, editor = {Zimmermann, Andreas}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-80163}, pages = {49 -- 67}, year = {2015}, abstract = {Die Beziehungen zwischen den Vereinten Nationen und nichtstaatlichen Akteuren haben seit den 1990er Jahren einen radikalen Wandel erlebt. Nach der Rio-Konferenz {\"u}ber Umwelt und Entwicklung 1992 stand in den Vereinten Nationen zun{\"a}chst die Frage im Vordergrund, wie der gewachsenen Bedeutung der Nichtregierungsorganisationen (NGOs) in der Arbeit und den Strukturen der Weltorganisation Rechnung getragen werden k{\"o}nnte. Seit Ende der 1990er Jahre dominierten innerhalb der Vereinten Nationen und einiger ihrer Spezialorgane und Sonderorganisationen zunehmend die Bem{\"u}hungen, Privatunternehmen und ihre Interessenvertreter aktiver in die Arbeit der Vereinten Nationen zu integrieren. Dies geschah zum einen in Form unterschiedlichster bilateraler Kontakte und Kooperationsvorhaben zwischen Unternehmen und UN-Akteuren, zum anderen im Rahmen von Dialogveranstaltungen und gemeinsamen Initiativen von Regierungen, zwischenstaatlichen Gremien, Wirtschaftsvertretern und NGOs, f{\"u}r die im Folgeprozess der Rio-Konferenz der Begriff der Multistakeholder-Partnerschaften gepr{\"a}gt wurde. Der folgende Beitrag nimmt diese Entwicklung kritisch unter die Lupe. Er zeichnet im Zeitraffer nach, wie sich die Beziehungen zwischen den Vereinten Nationen und nichtstaatlichen Akteuren gewandelt haben, beschreibt das Ausmaß und die Bandbreite der neuen Partnerschaftsans{\"a}tze, er{\"o}rtert Risiken und Nebenwirkungen dieses Paradigmenwechsels in der internationalen Politik und skizziert zum Schluss, welche Konsequenzen sich daraus f{\"u}r die Vereinten Nationen abzeichnen.}, language = {de} } @article{HeinzHomburger2015, author = {Heinz, Wolfgang S. and Homburger, Zine}, title = {Die Rolle des UN-Hochkommissariats f{\"u}r Menschenrechte (OHCHR) im UN-Menschenrechtsschutz}, series = {Konzepte f{\"u}r die Reform der Vereinten Nationen : 12. Potsdamer UNO-Konferenz am 28.Juni 2014}, volume = {2015}, journal = {Konzepte f{\"u}r die Reform der Vereinten Nationen : 12. Potsdamer UNO-Konferenz am 28.Juni 2014}, number = {11}, editor = {Zimmermann, Andreas}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-80177}, pages = {69 -- 98}, year = {2015}, abstract = {I. Gr{\"u}ndung, Aufgaben und Struktur des Hochkommissariats II. Zur Rolle des OHCHR im und gegen{\"u}ber dem Menschenrechtsrat III. Zu Erfolgschancen von Feldmissionen in eher schwierigen L{\"a}ndern: China, Russische F{\"o}deration, Afghanistan, Sudan und Kolumbien IV. Zur Frage der politischen Unabh{\"a}ngigkeit des OHCHR V. Schlussfolgerungen und Ausblick}, language = {de} } @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} } @article{KehrigVilchezPerezMonteroetal.2015, author = {Kehrig, C. and V{\´i}lchez, J. M. and P{\´e}rez-Montero, E. and Iglesias-P{\´a}ramo, J. and Brinchmann, Jarle and Crowther, P. A. and Durret, F. and Kunth, D.}, title = {PopIII-star siblings in IZw18 and metal-poor WR galaxies unveiled from integral field spectroscopy}, 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-opus4-87648}, pages = {55 -- 58}, year = {2015}, abstract = {Here, we highlight our recent results from the IFS study of Mrk178, the closest metal-poor WR galaxy, and of IZw18, the most metal-poor star-forming galaxy known in the local Universe. The IFS data of Mrk178 show the importance of aperture effects on the search for WR features, and the extent to which physical variations in the ISM properties can be detected. Our IFS data of IZw18 reveal its entire nebular HeIIλ4686-emitting region, and indicate for the very first time that peculiar, hot (nearly) metal-free ionizing stars (called here PopIII-star siblings) might hold the key to the HeII-ionization in IZw18.}, language = {en} } @article{SrivastavaKehrigKanthariaetal.2015, author = {Srivastava, S. and Kehrig, C. and Kantharia, N. G. and P{\´e}rez-Montero, E. and V{\´i}lchez, J. M. and Iglesias-P{\´a}ramo, J. and Janardhan, P.}, title = {A 2D view of Wolf-Rayet Galaxies}, 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-opus4-87650}, pages = {59 -- 62}, year = {2015}, abstract = {The main objective of this work is to investigate the evolution of massive stars, and the interplay between them and the ionized gas for a sample of local metal-poor Wolf-Rayet galaxies. Optical integral field spectrocopy was used in combination with multi-wavelength radio data. Combining optical and radio data, we locate Wolf-Rayet stars and supernova remnants across the Wolf-Rayet galaxies to study the spatial correlation between them. This study will shed light on the massive star formation and its feedback, and will help us to better understand distant star-forming galaxies.}, language = {en} } @article{Hillier2015, author = {Hillier, D. J.}, title = {Spectrum formation in 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-opus4-87669}, pages = {65 -- 70}, year = {2015}, abstract = {We highlight the basic physics that allows fundamental parameters, such as the effective temperature, luminosity, abundances, and mass-loss rate, of Wolf-Rayet (W-R) stars to be determined. Since the temperature deduced from the spectrum of a W-R star is an ionization temperature, a detailed discussion of the ionization structure of W-R winds, and how it is set, is given. We also provide an overview of line and continuum formation in W-R stars. Mechanisms that contribute to the strength of different emission lines, such as collisional excitation, radiative recombination, dielectronic recombination, and continuum uorescence, are discussed.}, language = {en} } @article{EversbergAldorettaKnapenetal.2015, author = {Eversberg, T. and Aldoretta, E. J. and Knapen, J. H. and Moffat, Anthony F. J. and Morel, T. and Ramiaramanantsoa, T. and Rauw, G. and Richardson, N. D. and St-Louis, N. and Teodoro, M.}, title = {World-wide amateur observations}, 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-opus4-87705}, pages = {71 -- 74}, year = {2015}, abstract = {For some years now, spectroscopic measurements of massive stars in the amateur domain have been fulfilling professional requirements. Various groups in the northern and southern hemispheres have been established, running successful professional-amateur (ProAm) collaborative campaigns, e.g., on WR, O and B type stars. Today high quality data (echelle and long-slit) are regularly delivered and corresponding results published. Night-to-night long-term observations over months to years open a new opportunity for massive-star research. We introduce recent and ongoing sample campaigns (e.g. ∊ Aur, WR 134, ζ Pup), show respective results and highlight the vast amount of data collected in various data bases. Ultimately it is in the time-dependent domain where amateurs can shine most.}, language = {en} } @article{StLouis2015, author = {St-Louis, N.}, title = {Studying Large and Small Scale Wind Asymmetries with Spectroscopy and Polarimetry}, 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-opus4-87726}, pages = {79 -- 84}, year = {2015}, abstract = {In this paper, I review observational evidence from spectroscopy and polarimetry for the presence of small and large scale structure in the winds of Wolf-Rayet (WR) stars. Clumping is known to be ubiquitous in the winds of these stars and many of its characteristics can be deduced from spectroscopic time-series and polarisation lightcurves. Conversely, a much smaller fraction of WR stars have been shown to harbour larger scale structures in their wind (∼ 1/5) while they are thought to be present is the winds of most of their O-star ancestors. The reason for this difference is still unknown.}, language = {en} } @article{HoffmanLomax2015, author = {Hoffman, J. L. and Lomax, J. R.}, title = {Structure and fate of binary WR 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-opus4-87737}, pages = {85 -- 88}, year = {2015}, abstract = {Because most massive stars have been or will be affected by a companion during the course of their evolution, we cannot afford to neglect binaries when discussing the progenitors of supernovae and GRBs. Analyzing linear polarization in the emission lines of close binary systems allows us to probe the structures of these systems' winds and mass flows, making it possible to map the complex morphologies of the mass loss and mass transfer structures that shape their subsequent evolution. In Wolf-Rayet (WR) binaries, line polarization variations with orbital phase distinguish polarimetric signatures arising from lines that scatter near the stars from those that scatter far from the orbital plane. These far-scattering lines may form the basis for a "binary line-effect method" of identifying rapidly rotating WR stars (and hence GRB progenitor candidates) in binary systems.}, language = {en} } @article{CheneWyrickBorissovaetal.2015, author = {Chen{\´e}, A.-N. and Wyrick, D. and Borissova, J. and Kuhn, M. and Herv{\´e}, A. and Ram{\´i}rez Alegr{\´i}a, S. and Bonatto, C. and Bouret, J.-C. and Kurtev, R.}, title = {Improving distances to Galactic 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-opus4-87759}, pages = {97 -- 100}, year = {2015}, abstract = {Before GAIA improves the HIPPARCOS survey, direct determination of the distance via parallax is only possible for γ Vel, but the analysis of the cluster or association to which WR stars are associated can give distances with a 50\% to a 10\% accuracy. The list of Galactic clusters, associations and clusters/association candidates has grown significantly in the last decade with the numerous deep, high resolution surveys of the Milky Way. In this work, we revisit the fundamental parameters of known clusters with WR stars, and we present the search for new ones. All our work is based on the catalogs from the VVV (from the VISTA telescope) and the UKIDS (from the UKIRT telescope) near infrared surveys. Finally, the relations between the fundamental parameters of clusters with WR stars are explored.}, language = {en} } @article{RossloweCrowtherClarketal.2015, author = {Rosslowe, C. K. and Crowther, P. A. and Clark, J. S. and Negueruela, I.}, title = {Physical properties of the WR stars in Westerlund 1}, 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-opus4-87779}, pages = {105 -- 108}, year = {2015}, abstract = {The Westerlund 1 (Wd1) cluster hosts a rich and varied collection of massive stars. Its dynamical youth and the absence of ongoing star formation indicate a coeval population. As such, the simultaneous presence of both late-type supergiants and Wolf-Rayet stars has defied explanation in the context of single-star evolution. Observational evidence points to a high binary fraction, hence this stellar population offers a robust test for stellar models accounting for both single-star and binary evolution. We present an optical to near-IR (VLT \& NTT) spectroscopic analysis of 22 WR stars in Wd 1, delivering physical properties for the WR stars. We discuss how these differ from the Galactic field population, and how they may be reconciled with the predictions of single and binary evolutionary models.}, 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} } @article{ReyesPerezMorissetPenaetal.2015, author = {Reyes-P{\´e}rez, J. and Morisset, C. and Pena, M. and Mesa-Delgado, A.}, title = {A consistent spectral model of WR 136 and its associated bubble NGC 6888}, 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-opus4-88274}, pages = {321 -- 324}, year = {2015}, abstract = {We analyse whether a stellar atmosphere model computed with the code CMFGEN provides an optimal description of the stellar observations of WR 136 and simultaneously reproduces the nebular observations of NGC 6888, such as the ionization degree, which is modelled with the pyCloudy code. All the observational material available (far and near UV and optical spectra) were used to constrain such models. We found that the stellar temperature T∗, at τ = 20, can be in a range between 70 000 and 110 000 K, but when using the nebula as an additional restriction, we found that the stellar models with T∗ ∼ 70 000 K represent the best solution for both, the star and the nebula.}, language = {en} } @article{NajarrodelaFuenteGeballeetal.2015, author = {Najarro, F. and de la Fuente, D. and Geballe, T. R. and Figer, D. F. and Hillier, D. J.}, title = {The WR population in the Galactic Center}, 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-opus4-87794}, pages = {113 -- 116}, year = {2015}, abstract = {The Galactic Center (GC) hosts three of the most massive WR rich, resolved young clusters in the Local Group as well as a large number of apparently isolated massive stars. Therefore, it constitutes a test bed to study the star formation history of the region, to probe a possible top-heavy scenario and to address massive star formation (clusters vs isolation) in such a dense and harsh environment. We present results from our ongoing infrared spectroscopic studies of WRs and other massive stars at the Center of the Milky Way.}, language = {en} } @article{HamaguchiCorcoran2015, author = {Hamaguchi, K. and Corcoran, M. F.}, title = {Extremely Hard X-ray Emission from η Car Observed with XMM-Newton and NuSTAR around Periastron in 2014.6}, 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-opus4-87926}, pages = {159 -- 162}, year = {2015}, abstract = {The super massive binary system, η Car, experienced periastron passage in the summer of 2014. We observed the star twice around the maximum (forb =0.97, 2014 June 6) and just before the minimum (ϕorb =0.99, 2014 July 28) of its wind-wind colliding (WWC) X-ray emis-sion using the XMM-Newton and NuSTAR observatories, the latter of which is equipped with extremely hard X-ray (>10 keV) focusing mirrors. In both observations, NuSTAR detected the thermal X-ray tail up to 40-50 keV. The hard slope is consistent with an electron tem- perature of ∼6 keV, which is significantly higher than the ionization temperature (kT ∼4 keV) measured from the Fe K emission lines, assuming collisional equilibrium plasma. The spectrum did not show a hard power-law component above this energy range, unlike earlier detections with INTEGRAL and Suzaku. In the second NuSTAR observation, the X-ray flux above 5 keV declined gradually in ∼1 day. This result suggests that the WWC apex was gradually hidden behind the optically thick primary wind around conjunction.}, language = {en} } @article{EldridgeMcClellandXiaoetal.2015, author = {Eldridge, J. J. and McClelland, L. A. S. and Xiao, L. and Stanway, E. R. and Bray, J.}, title = {The importance of getting single-star and binary physics correct}, 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-opus4-87966}, pages = {177 -- 182}, year = {2015}, abstract = {We discuss the uncertainties that need to be considered when creating numerical models of WR stars. We pay close attention to inflation and duplicity of the stellar models, highlighting several observational tests that show these are key to understanding WR stellar populations.}, language = {en} } @article{McClellandEldridge2015, author = {McClelland, L. A. S. and Eldridge, J. J.}, title = {Helium 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-opus4-88010}, pages = {197 -- 200}, year = {2015}, abstract = {There are outstanding problems in trying to reproduce the observed nature of Wolf-Rayet stars from theoretical stellar models. We have investigated the effects of uncertainties, such as composition and mass-loss rate, on the evolution and structure of Wolf-Rayet stars and their lower mass brethren. We find that the normal Conti scenario needs to be altered, with different WR types being due to different initial masses as well as different stages of evolution.}, language = {en} } @article{GrassitelliLangerSanyaletal.2015, author = {Grassitelli, L. and Langer, N. and Sanyal, D. and Fossati, Luca and Bestenlehner, J. M.}, title = {Instabilities in the envelope of 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-opus4-88024}, pages = {201 -- 204}, year = {2015}, abstract = {Wolf-Rayet stars are very hot stars close to the Eddington limit. In the conditions encountered in their radiation pressure dominated outer layers several instabilities are expected to arise. These instabilities could influence both the dynamic of their optically thick winds and the observed spectral lines introducing small and large scale variability. We investigate the conditions in the convective envelopes of our helium star models and relate them to the appearance of a high number of stochastic density inhomogeneities, i.e. clumping in the optically thick wind. We also investigate the pulsational stability of these envelope, considering the effect of the high stellar wind mass loss rates.}, language = {en} } @article{ShachamIdanShaviv2015, author = {Shacham, T. and Idan, I. and Shaviv, N. J.}, title = {A new mechanism for long long-term pulsations of hot 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-opus4-88058}, pages = {209 -- 212}, year = {2015}, abstract = {We suggest several ideas which when combined could lead to a new mechanism for long-term pulsations of very hot and luminous stars. These involve the interplay between convection, radiation, atmospheric clumping and winds, which collectively feed back to stellar expansion and contraction. We discuss these ideas and point out the future work required in order to fill in the blanks.}, language = {en} } @article{VanbeverenMennekens2015, author = {Vanbeveren, D. and Mennekens, N.}, title = {Massive star population synthesis with binaries}, 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-opus4-88071}, pages = {217 -- 224}, year = {2015}, abstract = {We first give a short historical overview with some key facts of massive star population synthesis with binaries. We then discuss binary population codes and focus on two ingredients which are important for massive star population synthesis and which may be different in different codes. Population simulations with binaries is the third part where we consider the initial massive binary frequency, the RSG/WR and WC/WN and SNII/SNIbc number ratio's, the probable initial rotational velocity distribution of massive stars.}, language = {en} } @article{MunozMoffatHilletal.2015, author = {Munoz, M. and Moffat, Anthony F. J. and Hill, G. M. and Richardson, N. D. and Pablo, H.}, title = {The missing Wolf-Rayet X-ray binary systems}, 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-opus4-88082}, pages = {225 -- 228}, year = {2015}, abstract = {We investigate the rarity of the Wolf-Rayet X-ray binaries (WRXRBs) in contrast to their predecessors, the high mass X-ray binaries (HMXRBs). Recent studies suggest that common envelope (CE) mergers during the evolution of a HMXRBs may be responsible (Linden et al. 2012). We conduct a binary population synthesis to generate a population of HMXRBs mimicking the Galactic sample and vary the efficiency parameter during the CE phase to match the current WRXRB to HMXRB ratio. We find that ∼50\% of systems must merge to match observational constraints.}, language = {en} } @article{GeorgyEkstroemHirschietal.2015, author = {Georgy, C. and Ekstr{\"o}m, S. and Hirschi, R. and Meynet, G. and Groh, J. H. and Eggenberger, P.}, title = {Wolf-Rayet stars as an evolved stage of stellar life}, 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-opus4-88097}, pages = {229 -- 232}, year = {2015}, abstract = {Wolf-Rayet (WR) stars, as they are advanced stages of the life of massive stars, provide a good test for various physical processes involved in the modelling of massive stars, such as rotation and mass loss. In this paper, we show the outputs of the latest grids of single massive stars computed with the Geneva stellar evolution code, and compare them with some observations. We present a short discussion on the shortcomings of single stars models and we also briefly discuss the impact of binarity on the WR populations.}, language = {en} } @article{WoffordCharlotEldridge2015, author = {Wofford, A. and Charlot, S. and Eldridge, J. J.}, title = {Properties of LEGUS Clusters Obtained with Different Massive-Star Evolutionary Tracks}, 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-opus4-88109}, pages = {233 -- 236}, year = {2015}, abstract = {We compute spectral libraries for populations of coeval stars using state-of-the-art massive-star evolutionary tracks that account for different astrophysics including rotation and close-binarity. Our synthetic spectra account for stellar and nebular contributions. We use our models to obtain E(B - V ), age, and mass for six clusters in spiral galaxy NGC 1566, which have ages of < 50 Myr and masses of > 5 x 104M⊙ according to standard models. NGC 1566 was observed from the NUV to the I-band as part of the imaging Treasury HST program LEGUS: Legacy Extragalactic UV Survey. We aim to establish i) if the models provide reasonable fits to the data, ii) how well the models and photometry are able to constrain the cluster properties, and iii) how different the properties obtained with different models are.}, language = {en} } @article{WalshMonrealIberoVilchezetal.2015, author = {Walsh, J. R. and Monreal-Ibero, A. and V{\´i}lchez, J. M. and P{\´e}rez-Montero, E. and Iglesias-P{\´a}ramo, J. and Sandin, C. and Relano, M. and Amor{\´i}n, R.}, title = {The Wolf-Rayet Population and ISM Interaction in Nearby Starbursts}, 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-opus4-88339}, pages = {341 -- 344}, year = {2015}, abstract = {The interaction between massive star formation and gas is a key ingredient in galaxy evolution. Given the level of observational detail currently achievable in nearby starbursts, they constitute ideal laboratories to study interaction process that contribute to global evolution in all types of galaxies. Wolf-Rayet (WR) stars, as an observational marker of high mass star formation, play a pivotal role and their winds can strongly influence the surrounding gas. Imaging spectroscopy of two nearby (<4 Mpc) starbursts, both of which show multiple regions with WR stars, are discussed. The relation between the WR content and the physical and chemical properties of the surrounding ionized gas is explored.}, language = {en} } @article{GormazMatamalaHerveCheneetal.2015, author = {Gormaz-Matamala, A. C. and Herv{\´e}, A. and Chen{\´e}, A.-N. and Cur{\´e}, M. and Mennickent, R. E.}, title = {Results Of The Spectroscopic Analysis Of WR6 Using CMFGEN}, 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-opus4-88422}, pages = {357}, year = {2015}, abstract = {Using ESPaDOnS optical spectra of WR6, we search variations on the stellar wind parameters during the different phases of the spectral variations. We use the radiative transfer code CMFGEN (Hillier \& Miller 1998) to determine the wind parameters. Our work gives mean parameters for WR6, Teff = 55 kK, M = 2.7 × 10^-5 M⊙/yr and v∞ =1700 km/s. Furthermore the line profiles variations at different phases are the consequence of a variation of mass loss rate and temperature un the winds. Effective temperature reaches 59 kK at the highest intensity, whereas the mass-loss rate decreases to 2.5 × 10^-5 M⊙/yr in that case. On the other hand, effective temperature decreases to 52.5 kK and the mass-loss rate increases to 3 × 10^-5 M/⊙yr when the line profile reach its minimum intensity. Results confirm the variable nature of the stellar wind, presented in this case on two of its fundamental parameters: temperature and mass-loss; which could be used to constrain the nature of the instability at the basis of the wind.}, language = {en} } @article{KanarekSharaFahertyetal.2015, author = {Kanarek, G. and Shara, M. and Faherty, J. and Zurek, D. and Moffat, Anthony F. J.}, title = {New Galactic 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-opus4-88448}, pages = {359}, year = {2015}, abstract = {Over the course of 6 months in 2013, we observed nearly 400 Wolf-Rayet candidates in the Galactic plane. Preliminary results from this dataset are presented.}, language = {en} } @article{SugawaraTsuboiMaedaetal.2015, author = {Sugawara, Y. and Tsuboi, Y. and Maeda, Y. and Pollock, A. M. T. and Williams, P. M.}, title = {The Swift monitoring of the colliding wind binary WR 21a}, 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-opus4-88517}, pages = {366}, year = {2015}, abstract = {The X-ray observations of the colliding wind binary WR 21a is reported. The first monitoring performed by Swift/XRT in order to reveal the phase-locked variation. Our observations cover 201 different epochs from 2013 October 1 to 2015 January 30 for a total exposure of about 306 ks. It is found for the first time that the luminosity varies roughly in inverse proportion to the separation of the two stars before the X-ray maximum but later drops rapidly toward periastron.}, language = {en} } @article{EngbringKlar2015, author = {Engbring, Dieter and Klar, Tilman-Mathies}, title = {Medienbildung mit Informatik-Anteilen!?}, series = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, volume = {2015}, journal = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, number = {9}, editor = {Schubert, Sigrid and Schwill, Andreas}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-84693}, pages = {125 -- 142}, year = {2015}, abstract = {Auf der Grundlage der Planung, Durchf{\"u}hrung, Evaluation und Revision eines gemeinsamen Seminars von Medienp{\"a}dagogik und Didaktik der Informatik stellen wir in diesem Aufsatz dar, wo die Defizite klassischer Medienbildung in Bezug auf digitale bzw. interaktive Medien liegen und welche Inhalte der Informatik f{\"u}r Studierende aller Lehr{\"a}mter - im allgemeinbildenden Sinne - aus dieser Perspektive relevant erscheinen.}, language = {de} } @article{KujathSchuetze2015, author = {Kujath, Bertold and Sch{\"u}tze, Christopher}, title = {Evaluation der Lernwirksamkeit eines Lehrvideos zum informatischen Probleml{\"o}sen}, series = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, volume = {2015}, journal = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, number = {9}, editor = {Schubert, Sigrid and Schwill, Andreas}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-84705}, pages = {143 -- 152}, year = {2015}, abstract = {Der folgende Artikel beschreibt die Evaluation eines Lehrvideos zum informatischen Probleml{\"o}sen, welches auf der Grundlage einer Vergleichsstudie mit starken und schwachen Probleml{\"o}sern entwickelt wurde. Beispielhaft wird in dem Film ein F{\"a}rbeproblem durch einen fiktiven Hochleister unter lautem Denken gel{\"o}st, die einzelnen Arbeitsschritte werden abschnittsweise kommentiert und erkl{\"a}rt. Ob dieses Lernkonzept von Studenten akzeptiert wird und sich durch Anschauen des Videos tats{\"a}chlich ein Lerneffekt einstellt, wurde durch eine Befragung und eine erste Vergleichsstudie untersucht.}, language = {de} } @article{FietkauKindsmuellerGoettel2015, author = {Fietkau, Julian and Kindsm{\"u}ller, Martin Christof and G{\"o}ttel, Timo}, title = {Rapid Prototyping von Interaktionskonzepten in der universit{\"a}ren MCI-Lehre}, series = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, volume = {2015}, journal = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, number = {9}, editor = {Schubert, Sigrid and Schwill, Andreas}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-84718}, pages = {153 -- 160}, year = {2015}, abstract = {In der Lehre zur MCI (Mensch-Computer-Interaktion) stellt sich immer wieder die Herausforderung, praktische {\"U}bungen mit spannenden Ergebnissen durchzuf{\"u}hren, die sich dennoch nicht in technischen Details verlieren sondern MCI-fokussiert bleiben. Im Lehrmodul „Interaktionsdesign" an der Universit{\"a}t Hamburg werden von Studierenden innerhalb von drei Wochen prototypische Interaktionskonzepte f{\"u}r das Spiel Neverball entworfen und praktisch umgesetzt. Anders als in den meisten Grundlagenkursen zur MCI werden hier nicht Mock-Ups, sondern lauff{\"a}hige Software entwickelt. Um dies innerhalb der Projektzeit zu erm{\"o}glichen, wurde Neverball um eine TCP-basierte Schnittstelle erweitert. So entf{\"a}llt die aufw{\"a}ndige Einarbeitung in den Quellcode des Spiels und die Studierenden k{\"o}nnen sich auf ihre Interaktionsprototypen konzentrieren. Wir beschreiben die Erfahrungen aus der mehrmaligen Durchf{\"u}hrung des Projektes und erl{\"a}utern unser Vorgehen bei der Umsetzung. Die Ergebnisse sollen Lehrende im Bereich MCI unterst{\"u}tzen, {\"a}hnliche praxisorientierte {\"U}bungen mit Ergebnissen „zum Anfassen" zu gestalten.}, language = {de} } @article{BergnerTaraschewskiSchroeder2015, author = {Bergner, Nadine and Taraschewski, Christian and Schroeder, Ulrik}, title = {Beispiel eines Sch{\"u}lerwettbewerbs zum Thema Projektmanagement und App-Programmierung}, series = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, volume = {2015}, journal = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, number = {9}, editor = {Schubert, Sigrid and Schwill, Andreas}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-84726}, pages = {161 -- 168}, year = {2015}, abstract = {Es wird ein Informatik-Wettbewerb f{\"u}r Sch{\"u}lerinnen und Sch{\"u}ler der Sekundarstufe II beschrieben, der {\"u}ber mehrere Wochen m{\"o}glichst realit{\"a}tsnah die Arbeitswelt eines Informatikers vorstellt. Im Wettbewerb erarbeiten die Sch{\"u}lerteams eine Android-App und organisieren ihre Entwicklung durch Projektmanagementmethoden, die sich an professionellen, agilen Prozessen orientieren. Im Beitrag werden der theoretische Hintergrund zu Wettbewerben, die organisatorischen und didaktischen Entscheidung, eine erste Evaluation sowie Reflexion und Ausblick dargestellt.}, language = {de} } @article{LewinMcNicol2015, author = {Lewin, Cathy and McNicol, Sarah}, title = {Supporting the Development of 21st Century Skills through 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-opus4-82672}, pages = {181 -- 198}, year = {2015}, abstract = {The growing impact of globalisation and the development of a 'knowledge society' have led many to argue that 21st century skills are essential for life in twenty-first century society and that ICT is central to their development. This paper describes how 21st century skills, in particular digital literacy, critical thinking, creativity, communication and collaboration skills, have been conceptualised and embedded in the resources developed for teachers in iTEC, a four-year, European project. The effectiveness of this approach is considered in light of the data collected through the evaluation of the pilots, which considers both the potential benefits of using technology to support the development of 21st century skills, but also the challenges of doing so. Finally, the paper discusses the learning support systems required in order to transform pedagogies and embed 21st century skills. It is argued that support is required in standards and assessment; curriculum and instruction; professional development; and learning environments.}, language = {en} } @article{MagenheimNellesNeugebaueretal.2015, author = {Magenheim, Johannes and Nelles, Wolfgang and Neugebauer, Jonas and Ohrndorf, Laura and Schaper, Niclas and Schubert, Sigrid}, title = {Expert Rating of Competence Levels in Upper Secondary Computer Science Education}, 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-opus4-82683}, pages = {199 -- 216}, year = {2015}, abstract = {In the project MoKoM, which is funded by the German Research Foundation (DFG) from 2008 to 2012, a test instrument measuring students' competences in computer science was developed. This paper presents the results of an expert rating of the levels of students' competences done for the items of the instrument. At first we will describe the difficulty-relevant features that were used for the evaluation. These were deduced from computer science, psychological and didactical findings and resources. Potentials and desiderata of this research method are discussed further on. Finally we will present our conclusions on the results and give an outlook on further steps.}, language = {en} } @article{OpelKramerTrommenetal.2015, author = {Opel, Simone and Kramer, Matthias and Trommen, Michael and Pottb{\"a}cker, Florian and Ilaghef, Youssef}, title = {BugHunt}, 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-opus4-82693}, pages = {217 -- 233}, year = {2015}, abstract = {Competencies related to operating systems and computer security are usually taught systematically. In this paper we present a different approach, in which students have to remove virus-like behaviour on their respective computers, which has been induced by software developed for this purpose. They have to develop appropriate problem-solving strategies and thereby explore essential elements of the operating system. The approach was implemented exemplarily in two computer science courses at a regional general upper secondary school and showed great motivation and interest in the participating students.}, language = {en} } @article{PassigTzurielKedmi2015, author = {Passig, David and Tzuriel, David and Kedmi, Ganit Eshel}, title = {Improving children's Cognitive Modifiability through Mediated Learning and Dynamic Assessment within 3D Immersive Virtual Reality Environment}, 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-opus4-82705}, pages = {235 -- 252}, year = {2015}, abstract = {The objectives of this study were to examine (a) the effect of dynamic assessment (DA) in a 3D Immersive Virtual Reality (IVR) environment as compared with computerized 2D and noncomputerized (NC) situations on cognitive modifiability, and (b) the transfer effects of these conditions on more difficult problem solving administered two weeks later in a non-computerized environment. A sample of 117 children aged 6:6-9:0 years were randomly assigned into three experimental groups of DA conditions: 3D, 2D, and NC, and one control group (C). All groups received the pre- and post-teaching Analogies subtest of the Cognitive Modifiability Battery (CMB-AN). The experimental groups received a teaching phase in conditions similar to the pre-and post-teaching phases. The findings showed that cognitive modifiability, in a 3D IVR, was distinctively higher than in the two other experimental groups (2D computer group and NC group). It was also found that the 3D group showed significantly higher performance in transfer problems than the 2D and NC groups.}, language = {en} } @article{Saito2015, author = {Saito, Toshinori}, title = {The Key Competencies in Informatics and ICT viewed from Nussbaum's Ten Central Capabilities}, 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-opus4-82718}, pages = {253 -- 266}, year = {2015}, abstract = {This article shows a discussion about the key competencies in informatics and ICT viewed from a philosophical foundation presented by Martha Nussbaum, which is known as 'ten central capabilities'. Firstly, the outline of 'The Capability Approach', which has been presented by Amartya Sen and Nussbaum as a theoretical framework of assessing the state of social welfare, will be explained. Secondly, the body of Nussbaum's ten central capabilities and the reason for being applied as the basis of discussion will be shown. Thirdly, the relationship between the concept of 'capability' and 'competency' is to be discussed. After that, the author's assumption of the key competencies in informatics and ICT led from the examination of Nussbaum's ten capabilities will be presented.}, language = {en} } @article{Webb2015, author = {Webb, Mary}, title = {Considerations for the Design of Computing Curricula}, 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-opus4-82723}, pages = {267 -- 283}, year = {2015}, abstract = {This paper originated from discussions about the need for important changes in the curriculum for Computing including two focus group meetings at IFIP conferences over the last two years. The paper examines how recent developments in curriculum, together with insights from curriculum thinking in other subject areas, especially mathematics and science, can inform curriculum design for Computing. The analysis presented in the paper provides insights into the complexity of curriculum design as well as identifying important constraints and considerations for the ongoing development of a vision and framework for a Computing curriculum.}, language = {en} } @article{HurtienneSchroederSpannagel2015, author = {Hurtienne, Dominik and Schroeder, Ulrik and Spannagel, Christian}, title = {IT EnGAGES!}, series = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, volume = {2015}, journal = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, number = {9}, editor = {Schwill, Andreas and Schubert, Sigrid}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-80258}, pages = {27 -- 43}, year = {2015}, abstract = {Durch den Einsatz von Spielen und Spielelementen in Lernkontexten wird versucht, Lernende zur Besch{\"a}ftigung mit den Lerninhalten zu motivieren. Spielerische Elemente haben allerdings nicht nur positive motivationale Effekte: Sie k{\"o}nnen sich beispielsweise negativ auf die intrinsische Motivation auswirken, und auch nicht jeder Lernende spielt gerne. Um negativen Einfl{\"u}ssen von Gamification entgegenzuwirken, wurde ein Toolkit f{\"u}r adaptierbare Lernumgebungen entwickelt. Damit erzeugte Lernumgebungen erlauben es Studierenden, den Grad der Gamification selbst zu bestimmen, indem Spielelemente an- und abgeschaltet werden. Im Rahmen einer Anf{\"a}ngerprogrammiervorlesung wurden Lernspielaufgaben aus den existierenden, optionalen interaktiven eTests entwickelt und Studierenden als zus{\"a}tzliche Lerngelegenheit angeboten. Eine erste explorative Studie best{\"a}tigt die Vermutung, dass die Akzeptanz des adaptierbaren Lernspiels sehr hoch ist, es aber dennoch Studierende gibt, welche die Lernumgebung ohne Spielelemente durcharbeiten. Somit bietet adaptierbare Gamification verschiedenen Studierenden die M{\"o}glichkeit, sich zus{\"a}tzliche motivationale Anreize durch Zuschalten von Spielelementen zu verschaffen, ohne dabei zum Spielen „gen{\"o}tigt" zu werden.}, language = {de} } @article{RoderusWienkop2015, author = {Roderus, Simon and Wienkop, Uwe}, title = {Verbesserung der Bestehensquoten durch ein Peer Assessment-Pflichtpraktikum}, series = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, volume = {2015}, journal = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, number = {9}, editor = {Schwill, Andreas and Schubert, Sigrid}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-80260}, pages = {45 -- 60}, year = {2015}, abstract = {Peer Assessment ist eine Methode, bei der die Teilnehmer eine gestellte Aufgabe nicht nur bearbeiten und einreichen, sondern - in einer zweiten Phase - diese auch gegenseitig {\"u}berpr{\"u}fen, kommentieren und bewerten. Durch diese Methode wird, auch in sehr großen Veranstaltungen, das {\"U}ben mit individuellen Bewertungen und individuellem Feedback m{\"o}glich. Im Wintersemester 2013/14 wurde dieser Ansatz in der Erstsemesterveranstaltung Programmieren an der Technischen Hochschule N{\"u}rnberg mit 340 Studierenden als semesterbegleitendes Online-Pflichtpraktikum erprobt. Bei gleichen Leistungsanforderungen wurde bei Studierenden, die erfolgreich am Praktikum teilnahmen, eine Reduzierung der Durchfallquote um durchschnittlich 60 \% und eine Verbesserung der Durchschnittsnote um 0,6 - 0,9 Notenstufen erzielt. Zudem lernten die teilnehmenden Studierenden kontinuierlicher, bereiteten Lerninhalte besser nach und gelangten zu einer {\"u}berwiegend positiven Einsch{\"a}tzung des Praktikums und der Methode. Im E-Learning System Moodle kann Peer Assessment, mit moderatem Umsetzungs- und Betreuungsaufwand, mit der Workshop-Aktivit{\"a}t realisiert werden. Im Beitrag wird auf die Schl{\"u}sselelemente des erfolgreichen Einsatzes von Peer Assessment eingegangen.}, language = {de} } @article{LeonhardtKwiecienSchmetzetal.2015, author = {Leonhardt, Thiemo and Kwiecien, Alexandra and Schmetz, Arno and Bellgardt, Martin and Naumann, Uwe}, title = {Studienabbruchsquote dauerhaft senken}, series = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, volume = {2015}, journal = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, number = {9}, editor = {Schwill, Andreas and Schubert, Sigrid}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-80274}, pages = {61 -- 76}, year = {2015}, abstract = {Es wird ein umfassendes Mentoring Konzept im Studiengang Informatik an der RWTH Aachen vorgestellt, das den {\"U}bergang von der Schule zur Universit{\"a}t unterst{\"u}tzt und gleichzeitig beim Auftreten von Schwierigkeiten im Verlauf des Studiums effiziente und kompetente Beratung bietet. Das Programm erreicht durchg{\"a}ngig hohe Akzeptanzwerte bei den Studierenden trotz verpflichtender Teilnahme im ersten Semester. Die Wirksamkeit des Programms ist durch die zahlreichen einflussgebenden Variablen zwar rein quantitativ kaum messbar, die M{\"o}glichkeit auf organisatorische und fachliche Probleme eines Jahrgangs reagieren zu k{\"o}nnen sowie einen Einblick auf die Gr{\"u}nde f{\"u}r einen Studienabbruch zu bekommen, best{\"a}tigt aber die Notwendigkeit der Maßnahme.}, language = {de} } @article{JakoblewKeilWinkelnkemper2015, author = {Jakoblew, Marcel and Keil, Reinhard and Winkelnkemper, Felix}, title = {Forschendes Lernen durch Semantisches Positionieren}, series = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, volume = {2015}, journal = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, number = {9}, editor = {Schwill, Andreas and Schubert, Sigrid}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-80301}, pages = {109 -- 124}, year = {2015}, abstract = {Der Beitrag stellt das Konzept des Semantischen Positionierens als eine M{\"o}glichkeit vor, Grundformen des wissenschaftlichen Arbeitens und elementare Formen der diskursiven Auseinandersetzung zu vermitteln, ohne dass die Studierenden sich inhaltlich an der aktuellen Forschung beteiligen m{\"u}ssten. Die Umsetzung dieses Konzepts im Bachelorstudium der Informatik verdeutlicht, dass mit diesem Ansatz sowohl die Kompetenzen f{\"u}r den {\"U}bergang in den mehr forschungsgetriebenen Masterstudiengang als auch f{\"u}r die berufliche Wissensarbeit erworben werden k{\"o}nnen.}, language = {de} } @article{Curzon2015, author = {Curzon, Paul}, title = {Unplugged Computational Thinking for Fun}, 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-opus4-82575}, pages = {15 -- 27}, year = {2015}, abstract = {Computational thinking is a fundamental skill set that is learned by studying Informatics and ICT. We argue that its core ideas can be introduced in an inspiring and integrated way to both teachers and students using fun and contextually rich cs4fn 'Computer Science for Fun' stories combined with 'unplugged' activities including games and magic tricks. We also argue that understanding people is an important part of computational thinking. Computational thinking can be fun for everyone when taught in kinaesthetic ways away from technology.}, language = {en} } @article{Kalas2015, author = {Kalas, Ivan}, title = {Programming at Pre-primary and Primary Levels}, 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-opus4-82587}, pages = {29 -- 31}, year = {2015}, language = {en} } @article{MagenheimSchubertSchapert2015, author = {Magenheim, Johannes and Schubert, Sigrid and Schapert, Niclas}, title = {Modelling and Measurement of Competencies in Computer Science Education}, 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-opus4-82592}, pages = {33 -- 57}, year = {2015}, abstract = {As a result of the Bologna reform of educational systems in Europe the outcome orientation of learning processes, competence-oriented descriptions of the curricula and competence-oriented assessment procedures became standard also in Computer Science Education (CSE). The following keynote addresses important issues of shaping a CSE competence model especially in the area of informatics system comprehension and object-oriented modelling. Objectives and research methodology of the project MoKoM (Modelling and Measurement of Competences in CSE) are explained. Firstly, the CSE competence model was derived based on theoretical concepts and then secondly the model was empirically examined and refined using expert interviews. Furthermore, the paper depicts the development and examination of a competence measurement instrument, which was derived from the competence model. Therefore, the instrument was applied to a large sample of students at the gymnasium's upper class level. Subsequently, efforts to develop a competence level model, based on the retrieved empirical results and on expert ratings are presented. Finally, further demands on research on competence modelling in CSE will be outlined.}, 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{BroekerKastensMagenheim2015, author = {Br{\"o}ker, Kathrin and Kastens, Uwe and Magenheim, Johannes}, title = {Competences of Undergraduate Computer Science Students}, 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-opus4-82613}, pages = {77 -- 96}, year = {2015}, abstract = {The paper presents two approaches to the development of a Computer Science Competence Model for the needs of curriculum development and evaluation in Higher Education. A normativetheoretical approach is based on the AKT and ACM/IEEE curriculum and will be used within the recommendations of the German Informatics Society (GI) for the design of CS curricula. An empirically oriented approach refines the categories of the first one with regard to specific subject areas by conducting content analysis on CS curricula of important universities from several countries. The refined model will be used for the needs of students' e-assessment and subsequent affirmative action of the CS departments.}, language = {en} } @article{DagieneStupuriene2015, author = {Dagiene, Valentina and Stupuriene, Gabriele}, title = {Informatics Education based on Solving Attractive Tasks through a Contest}, 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-opus4-82626}, pages = {97 -- 115}, year = {2015}, abstract = {The paper discusses the issue of supporting informatics (computer science) education through competitions for lower and upper secondary school students (8-19 years old). Competitions play an important role for learners as a source of inspiration, innovation, and attraction. Running contests in informatics for school students for many years, we have noticed that the students consider the contest experience very engaging and exciting as well as a learning experience. A contest is an excellent instrument to involve students in problem solving activities. An overview of infrastructure and development of an informatics contest from international level to the national one (the Bebras contest on informatics and computer fluency, originated in Lithuania) is presented. The performance of Bebras contests in 23 countries during the last 10 years showed an unexpected and unusually high acceptance by school students and teachers. Many thousands of students participated and got a valuable input in addition to their regular informatics lectures at school. In the paper, the main attention is paid to the developed tasks and analysis of students' task solving results in Lithuania.}, language = {en} } @article{EllisAbreuEllis2015, author = {Ellis, Jason Brent and Abreu-Ellis, Carla Reis}, title = {Student Perspectives of Social Networking use in Higher Education}, 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-opus4-82632}, pages = {117 -- 131}, year = {2015}, abstract = {Social networks are currently at the forefront of tools that lend to Personal Learning Environments (PLEs). This study aimed to observe how students perceived PLEs, what they believed were the integral components of social presence when using Facebook as part of a PLE, and to describe student's preferences for types of interactions when using Facebook as part of their PLE. This study used mixed methods to analyze the perceptions of graduate and undergraduate students on the use of social networks, more specifically Facebook as a learning tool. Fifty surveys were returned representing a 65 \% response rate. Survey questions included both closed and open-ended questions. Findings suggested that even though students rated themselves relatively well in having requisite technology skills, and 94 \% of students used Facebook primarily for social use, they were hesitant to migrate these skills to academic use because of concerns of privacy, believing that other platforms could fulfil the same purpose, and by not seeing the validity to use Facebook in establishing social presence. What lies at odds with these beliefs is that when asked to identify strategies in Facebook that enabled social presence to occur in academic work, the majority of students identified strategies in five categories that lead to social presence establishment on Facebook during their coursework.}, language = {en} } @article{GrillenbergerRomeike2015, author = {Grillenberger, Andreas and Romeike, Ralf}, title = {Teaching Data Management}, 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-opus4-82648}, pages = {133 -- 150}, year = {2015}, abstract = {Data management is a central topic in computer science as well as in computer science education. Within the last years, this topic is changing tremendously, as its impact on daily life becomes increasingly visible. Nowadays, everyone not only needs to manage data of various kinds, but also continuously generates large amounts of data. In addition, Big Data and data analysis are intensively discussed in public dialogue because of their influences on society. For the understanding of such discussions and for being able to participate in them, fundamental knowledge on data management is necessary. Especially, being aware of the threats accompanying the ability to analyze large amounts of data in nearly real-time becomes increasingly important. This raises the question, which key competencies are necessary for daily dealings with data and data management. In this paper, we will first point out the importance of data management and of Big Data in daily life. On this basis, we will analyze which are the key competencies everyone needs concerning data management to be able to handle data in a proper way in daily life. Afterwards, we will discuss the impact of these changes in data management on computer science education and in particular database education.}, language = {en} } @article{Haugsbakken2015, author = {Haugsbakken, Halvdan}, title = {The Student Learning Ecology}, 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-opus4-82659}, pages = {151 -- 169}, year = {2015}, abstract = {Educational research on social media has showed that students use it for socialisation, personal communication, and informal learning. Recent studies have argued that students to some degree use social media to carry out formal schoolwork. This article gives an explorative account on how a small sample of Norwegian high school students use social media to self-organise formal schoolwork. This user pattern can be called a "student learning ecology", which is a user perspective on how participating students gain access to learning resources.}, language = {en} } @article{Jones2015, author = {Jones, Anthony}, title = {ICT Competencies for School Students}, 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-opus4-82663}, pages = {171 -- 179}, year = {2015}, abstract = {This paper discusses results from a small-scale research study, together with some recently published research into student perceptions of ICT for learning in schools, to consider relevant skills that do not appear to currently being taught. The paper concludes by raising three issues relating to learning with and through ICT that need to be addressed in school curricula and classroom teaching.}, language = {en} } @article{Weigend2015, author = {Weigend, Michael}, title = {How Things Work}, 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-opus4-82814}, pages = {285 -- 298}, year = {2015}, abstract = {Recognizing and defining functionality is a key competence adopted in all kinds of programming projects. This study investigates how far students without specific informatics training are able to identify and verbalize functions and parameters. It presents observations from classroom activities on functional modeling in high school chemistry lessons with altogether 154 students. Finally it discusses the potential of functional modelling to improve the comprehension of scientific content.}, 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} } @article{ChristensenKnezek2015, author = {Christensen, Rhonda and Knezek, Gerald}, title = {The Technology Proficiency Self-Assessment Questionnaire (TPSA)}, 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-opus4-82838}, pages = {311 -- 318}, year = {2015}, abstract = {The Technology Proficiency Self-Assessment (TPSA) questionnaire has been used for 15 years in the USA and other nations as a self-efficacy measure for proficiencies fundamental to effective technology integration in the classroom learning environment. Internal consistency reliabilities for each of the five-item scales have typically ranged from .73 to .88 for preservice or inservice technology-using teachers. Due to changing technologies used in education, researchers sought to renovate partially obsolete items and extend self-efficacy assessment to new areas, such as social media and mobile learning. Analysis of 2014 data gathered on a new, 34 item version of the TPSA indicates that the four established areas of email, World Wide Web (WWW), integrated applications, and teaching with technology continue to form consistent scales with reliabilities ranging from .81 to .93, while the 14 new items gathered to represent emerging technologies and media separate into two scales, each with internal consistency reliabilities greater than .9. The renovated TPSA is deemed to be worthy of continued use in the teaching with technology context.}, language = {en} } @article{MainaAngondiWaga2015, author = {Maina, Anthony Gioko and Angondi, Enos Kiforo and Waga, Rosemary}, title = {How does the Implementation of a Literacy Learning Tool Kit influence Literacy Skill Acquisition?}, 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-opus4-82856}, pages = {319 -- 326}, year = {2015}, abstract = {This study aimed at following how teachers transfer skills into results while using ABRA literacy software. This was done in the second part of the pilot study whose aim was to provide equity to control group teachers and students by exposing them to the ABRACADABRA treatment after the end of phase 1. This opportunity was used to follow the phase 1 teachers to see how the skills learned were being transformed into results. A standard three-day initial training and planning session on how to use ABRA to teach literacy was held at the beginning of each phase for ABRA teachers (phase 1 experimental and phase 2 delayed ABRA). Teachers were provided with teaching materials including a tentative ABRA curriculum developed to align with the Kenyan English Language requirements for year 1 and 3 students. Results showed that although there was no significant difference between the groups in vocabulary-related subscales which include word reading and meaning as well as sentence comprehension, students in ABRACADABRA classes improved their scores at a significantly higher rate than students in control classes in comprehension related scores. An average student in the ABRACADABRA group improved by 12 and 16 percentile points respectively compared to their counterparts in the control group.}, language = {en} } @article{Ohrndorf2015, author = {Ohrndorf, Laura}, title = {Assignments in Computer Science Education}, 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-opus4-82868}, pages = {327 -- 333}, year = {2015}, abstract = {In this paper we describe the recent state of our research project concerning computer science teachers' knowledge on students' cognition. We did a comprehensive analysis of textbooks, curricula and other resources, which give teachers guidance to formulate assignments. In comparison to other subjects there are only a few concepts and strategies taught to prospective computer science teachers in university. We summarize them and given an overview on our empirical approach to measure this knowledge.}, language = {en} } @article{OrBach2015, author = {Or-Bach, Rachel}, title = {Programming for Non-Programmers}, 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-opus4-82875}, pages = {335 -- 342}, year = {2015}, abstract = {The study reported in this paper involved the employment of specific in-class exercises using a Personal Response System (PRS). These exercises were designed with two goals: to enhance students' capabilities of tracing a given code and of explaining a given code in natural language with some abstraction. The paper presents evidence from the actual use of the PRS along with students' subjective impressions regarding both the use of the PRS and the special exercises. The conclusions from the findings are followed with a short discussion on benefits of PRS-based mental processing exercises for learning programming and beyond.}, language = {en} } @article{PrestonYounie2015, author = {Preston, Christina and Younie, Sarah}, title = {Mentoring in a Digital World}, 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-opus4-82895}, pages = {343 -- 350}, year = {2015}, abstract = {This paper focuses on the results of the evaluation of the first pilot of an e-mentoring unit designed by the Hands-On ICT consortium, funded by the EU LLL programme. The overall aim of this two-year activity is to investigate the value for professional learning of Massive Online Open Courses (MOOCs) and Community Online Open Courses (COOCs) in the context of a 'community of practice'. Three units in the first pilot covered aspects of using digital technologies to develop creative thinking skills. The findings in this paper relate to the fourth unit about e-mentoring, a skill that was important to delivering the course content in the other three units. Findings about the e-mentoring unit included: the students' request for detailed profiles so that participants can get to know each other; and, the need to reconcile the different interpretations of e-mentoring held by the participants when the course begins. The evaluators concluded that the major issues were that: not all professional learners would self-organise and network; and few would wish to mentor their colleagues voluntarily. Therefore, the e-mentoring issues will need careful consideration in pilots two and three to identify how e-mentoring will be organised.}, language = {en} } @article{ReynoldsSwainstonBendrups2015, author = {Reynolds, Nicholas and Swainston, Andrew and Bendrups, Faye}, title = {Music Technology and 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-opus4-82913}, pages = {363 -- 370}, year = {2015}, abstract = {A project involving the composition of a number of pieces of music by public participants revealed levels of engagement with and mastery of complex music technologies by a number of secondary student volunteers. This paper reports briefly on some initial findings of that project and seeks to illuminate an understanding of computational thinking across the curriculum.}, language = {en} } @article{SysłoKwiatkowska2015, author = {Sysło, Maciej M. and Kwiatkowska, Anna Beata}, title = {Think logarithmically!}, 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-opus4-82923}, pages = {371 -- 380}, year = {2015}, abstract = {We discuss here a number of algorithmic topics which we use in our teaching and in learning of mathematics and informatics to illustrate and document the power of logarithm in designing very efficient algorithms and computations - logarithmic thinking is one of the most important key competencies for solving real world practical problems. We demonstrate also how to introduce logarithm independently of mathematical formalism using a conceptual model for reducing a problem size by at least half. It is quite surprising that the idea, which leads to logarithm, is present in Euclid's algorithm described almost 2000 years before John Napier invented logarithm.}, language = {en} } @article{ZierisGerstbergerMueller2015, author = {Zieris, Holger and Gerstberger, Herbert and M{\"u}ller, Wolfgang}, title = {Using Arduino-Based Experiments to Integrate Computer Science Education and Natural Science}, 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-opus4-82938}, pages = {381 -- 389}, year = {2015}, abstract = {Current curricular trends require teachers in Baden- Wuerttemberg (Germany) to integrate Computer Science (CS) into traditional subjects, such as Physical Science. However, concrete guidelines are missing. To fill this gap, we outline an approach where a microcontroller is used to perform and evaluate measurements in the Physical Science classroom. Using the open-source Arduino platform, we expect students to acquire and develop both CS and Physical Science competencies by using a self-programmed microcontroller. In addition to this combined development of competencies in Physical Science and CS, the subject matter will be embedded in suitable contexts and learning environments, such as weather and climate.}, language = {en} } @article{Buechner2015, author = {B{\"u}chner, Steffen}, title = {Empirical and Normative Research on Fundamental Ideas of Embedded System Development}, 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-opus4-82949}, pages = {393 -- 396}, year = {2015}, language = {en} } @article{Opel2015, author = {Opel, Simone}, title = {On the Way to a "General Model of Contextualised Computer Science Education"}, 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-opus4-82953}, pages = {397 -- 400}, year = {2015}, language = {en} } @article{Schiller2015, author = {Schiller, Thomas}, title = {Teaching Information Security (as Part of Key Competencies)}, 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-opus4-82960}, pages = {401 -- 404}, year = {2015}, abstract = {The poster and abstract describe the importance of teaching information security in school. After a short description of information security and important aspects, I will show, how information security fits into different guidelines or models for computer science educations and that it is therefore on of the key competencies. Afterwards I will present you a rough insight of teaching information security in Austria.}, language = {en} } @article{DiethelmSyrbe2015, author = {Diethelm, Ira and Syrbe, J{\"o}rn}, title = {Let's talk about CS!}, 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-opus4-82983}, pages = {411 -- 414}, year = {2015}, abstract = {To communicate about a science is the most important key competence in education for any science. Without communication we cannot teach, so teachers should reflect about the language they use in class properly. But the language students and teachers use to communicate about their CS courses is very heterogeneous, inconsistent and deeply influenced by tool names. There is a big lack of research and discussion in CS education regarding the terminology and the role of concepts and tools in our science. We don't have a consistent set of terminology that we agree on to be helpful for learning our science. This makes it nearly impossible to do research on CS competencies as long as we have not agreed on the names we use to describe these. This workshop intends to provide room to fill with discussion and first ideas for future research in this field.}, language = {en} } @article{Micheuz2015, author = {Micheuz, Peter}, title = {Discussing Educational Standards for Digital Competence and/or Informatics Education at Lower Secondary Level}, 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-opus4-83008}, pages = {425 -- 431}, year = {2015}, abstract = {Participants of this workshop will be confronted exemplarily with a considerable inconsistency of global Informatics education at lower secondary level. More importantly, they are invited to contribute actively on this issue in form of short case studies of their countries. Until now, very few countries have been successful in implementing Informatics or Computing at primary and lower secondary level. The spectrum from digital literacy to informatics, particularly as a discipline in its own right, has not really achieved a breakthrough and seems to be underrepresented for these age groups. The goal of this workshop is not only to discuss the anamnesis and diagnosis of this fragmented field, but also to discuss and suggest viable forms of therapy in form of setting educational standards. Making visible good practices in some countries and comparing successful approaches are rewarding tasks for this workshop. Discussing and defining common educational standards on a transcontinental level for the age group of 14 to 15 years old students in a readable, assessable and acceptable form should keep the participants of this workshop active beyond the limited time at the workshop.}, language = {en} } @article{DelgadoKloos2015, author = {Delgado Kloos, Carlos}, title = {What about the Competencies of Educators in the New Era of Digital Education?}, 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-opus4-83015}, pages = {435 -- 438}, year = {2015}, abstract = {A lot has been published about the competencies needed by students in the 21st century (Ravenscroft et al., 2012). However, equally important are the competencies needed by educators in the new era of digital education. We review the key competencies for educators in light of the new methods of teaching and learning proposed by Massive Open Online Courses (MOOCs) and their on-campus counterparts, Small Private Online Courses (SPOCs).}, language = {en} } @article{Buffon2015, author = {Buffon, Giuseppe}, title = {The Franciscans in Cathay}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {30}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-86920}, pages = {13 -- 28}, year = {2015}, abstract = {The study analyzes the process that leads to the elaboration of the thesis of a continuity between the Medieval Asia mission and the New World mission. This effort, undertaken by the Catholic historiography of the mission during the XIX century, is the result of the impulse provided by Alexander von Humboldt's studies about the discovery of America (Examen critique). The data about the geography of Asia collected by the missionaries-travelers working in the territory between Karakorum and Khanbalik during the XIII e XIV century reaches Christopher Colombus with the mediation of Roger Bacon, whom Humboldt himself esteems as a true cultural mediator. The conclusion of the article tries to identify reasons and modalities of the secularization of the missionary concept, i.e. the shift from the ideal of the propagation of the Christian message to a prevailing interest for cartography and topography, transformations arranged by a late medieval historiography that introduces into martyrolagia the loca toponomastica.}, language = {en} } @article{Werner2015, author = {Werner, Petra}, title = {In der Naturgeschichte „etwas H{\"o}heres suchen"}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {30}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-86975}, pages = {84 -- 98}, year = {2015}, abstract = {Der Erwerb der s{\"u}damerikanischen Reisetageb{\"u}cher Alexander von Humboldts durch die Staatsbibliothek Preußischer Kulturbesitz war 2014 ein bedeutendes Ereignis. In einem ersten Schritt wertet der Artikel unver{\"o}ffentlichte Teile der Tageb{\"u}cher und Dokumente aus dem Nachlass aus, um den „Kosmos Humboldt´scher Interessen" zum Thema Pflanzengeographie zu umreißen, darunter auch seine {\"U}berlegungen zum Einfluss von Mensch und Tier auf die Ausbreitung von Pflanzen und die Ver{\"a}nderung von Vegetation. Die Einsichten des Gelehrten zur Abh{\"a}ngigkeit Europas von der sogenannten „Neuen Welt" hinsichtlich der Nahrungsmittel werden ebenso behandelt. So vertrat Humboldt in seinen Ausf{\"u}hrungen zum Thema „Was sind Barbaren?" die These, dass Isolierung von Menschen aus der Gemeinschaft, Elend, Nahrungsmangel, klimatische Ursachen usw. „die Spuren von Zivilisation vertilgen". Er betonte, dass es n{\"o}tig sein, in einem weltweiten Wettstreit intellektueller Kr{\"a}fte die Ressourcenknappheit zu {\"u}berwinden.}, language = {de} } @article{Garrido2015, author = {Garrido, Elisa}, title = {Arte, ciencia y cultura visual en el atlas pintoresco}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {30}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-86949}, pages = {54 -- 67}, year = {2015}, abstract = {Lo pintoresco se puede definir como un sentimiento que invita al espectador de una escena particular a reproducirla en un cuadro, algo que permiti{\´o} a los viajeros del siglo XIX transportar las im{\´a}genes como posesiones, especialmente a trav{\´e}s de la publicaci{\´o}n de un Atlas Pittoresque. Cada una de esas im{\´a}genes es un testimonio de los viajes y sus historias cruzadas. Este es el caso de la l{\´a}mina III, Vista de la Plaza Mayor de M{\´e}xico, que forma parte de la obra Vues des Cordill{\`e}res et Monuments des Peuples Indig{\`e}nes de l'Am{\´e}rique, una imagen que ilustra las redes de intercambio que se suced{\´i}an entre artistas y cient{\´i}ficos a trav{\´e}s de los viajes y expediciones.}, language = {es} } @article{Bredekamp2015, author = {Bredekamp, Horst}, title = {Die Amerikanischen Reisetageb{\"u}cher}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {31}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/220}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-88963}, pages = {26 -- 42}, year = {2015}, abstract = {Die Reisetageb{\"u}cher der Amerika-Reise (1799-1804) stellen ein Kompendium an schriftlichen Eintr{\"a}gen, Tabellen, Diagrammen und Zeichnungen dar, das in der Tradition r{\"o}mischer Papiermuseen des 17. Jhs. steht. Sie k{\"o}nnen als Mikrokosmen kleiner Kunstkammern aufgefasst werden, in denen Naturobjekte, Kunstwerke und Arbeitsmittel einen gemeinsamen Reflexionsraum bilden. Im Zentrum des vorliegenden Beitrags steht Humboldts Auffassung einer gestalteten Bestimmung von Landschaft vermittels besonders einpr{\"a}gsamer Bildformen. Auf erstaunliche Weise n{\"a}hert sich Humboldts {\"A}sthetik der Gesamtsicht von Natur Charles Darwins Begriff der nat{\"u}rlichen Sch{\"o}nheit an. In den Reisetageb{\"u}chern zeigt sich ein heterogener, von Lebendigkeit zeugender Charakter, der sowohl durch das unterschiedliche Format der einzelnen Hefte, als auch durch die inkonsistente Behandlung des Papiers erreicht wird. Dieser bewegliche Zug setzt sich in zahlreichen Zetteln, Briefen und weiteren Texten fort als ein eigenes Prinzip von Evolution.}, language = {de} } @article{Heyd2015, author = {Heyd, Thomas}, title = {Ascensi{\´o}n al Teide de Alexander von Humboldt}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {30}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-86956}, pages = {68 -- 77}, year = {2015}, abstract = {En este breve ensayo propongo que en la ascensi{\´o}n al Teide Alexander von Humboldt pudo adquirir una perspectiva integral, que le sirvi{\´o} como marco de comunicaci{\´o}n cient{\´i}fica para aunar la multitud de datos que se hab{\´i}a dispuesto a recoger en su breve estancia en la isla. M{\´a}s aun, de ah{\´i} en adelante este marco adem{\´a}s le servir{\´i}a para darle sentido de conjunto a las incontables y diversas informaciones que recoger{\´i}a en los restantes cinco a{\~n}os de viaje. Para poner en evidencia el enfoque de la visita a Tenerife de Humboldt, analizo su relato de la ascensi{\´o}n al Teide suponiendo que est{\´a} estructurado seg{\´u}n los relatos de viajes {\´e}picos y peregrinaciones.}, language = {es} } @article{Kraft2015, author = {Kraft, Tobias}, title = {Humboldts Hefte}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {31}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/222}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-88986}, pages = {49 -- 59}, year = {2015}, abstract = {Der 2013 gegl{\"u}ckte Ankauf der Amerikanischen Tageb{\"u}cher durch ein Konsortium {\"o}ffentlicher und privater Geldgeber hat es nicht nur erm{\"o}glicht, Alexander von Humboldts Reisemanuskripte zum ersten Mal einer breiten interessierten {\"O}ffentlichkeit vorzustellen, sondern wirft auch ein besonderer Licht auf die Geschichte ihrer Rezeption und Erforschung. Welche Phasen der Arbeit und Auswertung der Tageb{\"u}cher lassen sich nachzeichnen? Und an welchem Punkt steht die Humboldt-Forschung in dieser Frage heute?}, language = {de} } @article{Lundberg2015, author = {Lundberg, Karin}, title = {Networking knowledge}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {30}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-86968}, pages = {78 -- 83}, year = {2015}, abstract = {Global citizenship and diversity are well-represented concepts in today's higher education. Learning outcomes and competencies are designed to sensitize students to the many cultural backgrounds of U.S. learning institutions. Nevertheless, true globality, as represented through diverse discourses and perspectives of the world, still seems neglected in curricula and course assignments. This article explores the possibilities offered through a new shared space in education where different forms of networked knowledge and multifaceted perspectives can build a global platform of exchange in a diverse student population. The universal science concept described by Alexander von Humboldt at the beginning of the 19th Century illuminates this intertwined approach to knowledge of the world, which has the potential to positively impact contemporary curricula and course design. Von Humboldt's writings emphasize inclusion and interplay among cultures and natural phenomena. By inviting our students to be active representatives of diverse discourses, these interconnecting links will become more transparent. In turn, productive forms of knowing about the world may enrich current learning objectives and thereby reflect a true global citizenship as it evolves in a new shared space of education. Keywords: global citizenship, plurality, diverse discourses, multicultural education.}, language = {en} } @article{BlankensteinSavoy2015, author = {Blankenstein, David and Savoy, B{\´e}n{\´e}dicte}, title = {Frontale Pr{\"a}senz}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {31}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/225}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-89012}, pages = {107 -- 114}, year = {2015}, abstract = {Ein bislang unver{\"o}ffentlichtes Portr{\"a}t Alexander von Humboldts aus der Hand Fr{\´e}d{\´e}ric d'Houdetots, ein Sch{\"u}ler des Malers Jacques-Louis David, bereichert die Humboldt-Ikonographie um eine Darstellung, die den ber{\"u}hmten Reisenden und Gelehrten als jungen Mann, wenige Jahre nach seiner R{\"u}ckkehr aus Amerika zeigt - beeindruckend lebendig, fokussiert und pr{\"a}sent. Das 1807 w{\"a}hrend der Franzosenzeit in Berlin entstandene Portr{\"a}t verweist als Teil eines im Conseil d'{\´E}tat in Paris aufbewahrten Portr{\"a}t-Albums auf die Zirkel und Beziehungen, die sich in der besetzten preußischen Hauptstadt zwischen Besatzern, j{\"u}dischen Salonkreisen und der wissenschaftlichen Community gebildet haben, ein N{\"a}hrboden f{\"u}r den transnationalen Austausch von Vertretern einer jungen und vitalen Generation, die sich als echte Europ{\"a}er verstanden.}, language = {de} } @article{Schwarz2015, author = {Schwarz, Ingo}, title = {„etwas hervorzubringen, was meines K{\"o}nigs und meines Vaterlandes werth sein kann"}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {31}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/218}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-88904}, pages = {5 -- 20}, year = {2015}, language = {de} } @article{Schwarz2015, author = {Schwarz, Ingo}, title = {„Uebrigens verbleibe ich mit besonderer Werthsch{\"a}tzung Euer gn{\"a}diger K{\"o}nig"}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {30}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {https://doi.org/10.18443/218}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-86913}, pages = {7 -- 12}, year = {2015}, language = {de} } @article{BispinckRossbacher2015, author = {Bispinck-Roßbacher, Julia}, title = {„Zwischen den Zeilen …"}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {31}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/221}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-88978}, pages = {43 -- 48}, year = {2015}, abstract = {Der Artikel besch{\"a}ftigt sich mit dem kodikologischen Befund der Amerikanischen Reisetageb{\"u}cher und materialtechnologischen Untersuchungen zu ihrem Papier und Beschreibstoffen. Der kodikologische Aspekt beinhaltet eine umfassende Erfassung aller physischen Merkmale und Besonderheiten der Tageb{\"u}cher, wobei ein Fokus auf die Zusammenstellung der Lagen, auf heraus getrennten oder ganz fehlenden Seiten liegt. Dies geschieht vor dem Hintergrund, die urspr{\"u}ngliche Zusammenstellung der Tageb{\"u}cher zu rekonstruieren, die Genese zu erforschen und im Nachlass befindliche Teile ggf. fehlenden Bl{\"a}ttern oder Fragmenten in den Tageb{\"u}chern zuzuordnen. Wasserzeichenaufnahmen mit der Thermographiekamera und Tintenanlaysen mithilfe der R{\"o}ntgenfluoreszenztechnik k{\"o}nnen dabei helfen aufzuzeigen, wie die Tageb{\"u}cher entstanden sind und wie sie bis zum Tod Alexander von Humboldts von ihm als Arbeitsinstrument genutzt wurden.}, language = {de} } @article{OPUS4-8698, title = {{\"U}ber die Autoren}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {30}, editor = {Ette, Ottmar and Knobloch, Eberhard}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-86985}, pages = {99 -- 101}, year = {2015}, language = {mul} } @article{ErdmannWeber2015, author = {Erdmann, Dominik and Weber, Jutta}, title = {Nachlassgeschichten}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVI}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {31}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/223}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-88997}, pages = {60 -- 79}, year = {2015}, abstract = {Der Artikel schildert die Geschichte verschiedener Teile des Manuskriptnachlasses Alexander von Humboldts, die sich heute in der Staatsbibliothek zu Berlin - Preußischer Kulturbesitz (SBB) und in der Biblioteka Jagiellońska in Krakau (BJ) befinden. Dabei wird insbesondere auf den unterschiedlichen ‚Quellenwert' der drei großen Nachlassabteilungen - der amerikanischen Reisetageb{\"u}cher, der Kollektaneen zum Kosmos (beide SBB) und dem sogenannten Nachlass Alexander von Humboldt (BJ) - eingegangen.}, language = {de} } @article{Moffat2015, author = {Moffat, Anthony F. J.}, title = {General overview of 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-opus4-87552}, pages = {13 -- 18}, year = {2015}, abstract = {Although we all use the name Wolf-Rayet to refer to specific groups of stars, "Wolf-Rayet" per se is really an astrophysical phenomenon of fast-moving, hot plasma, normally expanding around a hot star. However, expediency demands that we follow established traditions by referring to three specific kinds of WR stars: (1) cWR, "classical" He-burning descendants of massive, O-type stars, presumably all of which pass through a WR stage; (2) WNh, the most massive and luminous hydrogen-rich main-sequence stars with strong winds; and (3) [WR], the central stars of some 15 \% of Planetary Nebulae. Wolf-Rayet stars are the epitome of relatively stable stars with the highest mass-loss rates for their kind. It behooves us to understand the what, how and why of this circumstance, along with its manyfold and fascinating consequences.}, language = {en} } @article{Ladwig2015, author = {Ladwig, Bernd}, title = {Warum manche Tiere Rechte haben - und wir nicht die einzigen sind}, series = {MenschenRechtsMagazin : MRM ; Informationen, Meinungen, Analysen}, volume = {20}, journal = {MenschenRechtsMagazin : MRM ; Informationen, Meinungen, Analysen}, number = {2}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1434-2820}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-94900}, pages = {75 -- 86}, year = {2015}, abstract = {In diesem Text soll zweierlei gezeigt werden. Erstens, weil Menschen Rechte haben, gibt es wenigstens einige Tiere, die Rechte haben (I.). Zweitens, wir k{\"o}nnen die Rechte von Tieren nicht willk{\"u}rfrei auf die Art begrenzen, die wir selber bilden; Menschen sind nicht die einzigen Tiere, die Rechte haben (II.).}, language = {de} } @misc{TremblayBlancoRey2015, author = {Tremblay, Jean Christophe and Blanco-Rey, Maria}, title = {Manipulating interfacial hydrogens at palladium via STM}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-99511}, pages = {11}, year = {2015}, abstract = {In this contribution, we provide a detailed dynamical analysis of the interfacial hydrogen migration mediated by scanning tunneling microscopy (STM). Contributions from the STM-current and from the non-adiabatic couplings are taken into account using only first principle models. The slight asymmetry of the tunnelling rates with respect to the potential bias sign inferred from experimental observations is reproduced by weighting the contributions of the metal acceptor-donor states for the propagation of the impinging electrons. The quasi-thermal inelastic collision mechanism is treated perturbatively. The influence of hydrogen pre-coverage is also investigated using new potential energy surfaces obtained from periodic density functional theory calculations. Fully quantum dynamical simulations of the system evolution are performed by solving the Pauli master equation, providing insight into the reaction mechanism of STM manipulation of subsurface hydrogens. It is observed that the hydrogen impurity favors resurfacing over occupation of the bulk and subsurface sites whenever possible. The present simulations give strong indication that the experimentally observed protuberances after STM-excitation are due to hydrogen accumulating in the vicinity of the surface.}, language = {en} } @article{SchlierkampThurner2015, author = {Schlierkamp, Kathrin and Thurner, Veronika}, title = {Was will ich eigentlich hier?}, series = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, volume = {2015}, journal = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, number = {9}, editor = {Schubert, Sigrid and Schwill, Andreas}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-84748}, pages = {179 -- 187}, year = {2015}, abstract = {Die Wahl des richtigen Studienfaches und die daran anschließende Studieneingangsphase sind oft entscheidend f{\"u}r den erfolgreichen Verlauf eines Studiums. Eine große Herausforderung besteht dabei darin, bereits in den ersten Wochen des Studiums bestehende Defizite in vermeintlich einfachen Schl{\"u}sselkompetenzen zu erkennen und diese so bald wie m{\"o}glich zu beheben. Eine zweite, nicht minder wichtige Herausforderung ist es, m{\"o}glichst fr{\"u}hzeitig f{\"u}r jeden einzelnen Studierenden zu erkennen, ob er bzw. sie das individuell richtige Studienfach gew{\"a}hlt hat, das den jeweiligen pers{\"o}nlichen Neigungen, Interessen und F{\"a}higkeiten entspricht und zur Verwirklichung der eigenen Lebensziele beitr{\"a}gt. Denn nur dann sind Studierende ausreichend stark und dauerhaft intrinsisch motiviert, um ein anspruchsvolles, komplexes Studium erfolgreich durchzuziehen. In diesem Beitrag fokussieren wir eine Maßnahme, die die Studierenden an einen Prozess zur systematischen Reflexion des eigenen Lernprozesses und der eigenen Ziele heranf{\"u}hrt und beides in Relation setzt.}, language = {de} } @article{VossebergCzernikErbetal.2015, author = {Vosseberg, Karin and Czernik, Sofie and Erb, Ulrike and Vielhaber, Michael}, title = {Projektorientierte Studieneingangsphase}, series = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, volume = {2015}, journal = {HDI 2014 : Gestalten von {\"U}berg{\"a}ngen}, number = {9}, editor = {Schubert, Sigrid and Schwill, Andreas}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-84730}, pages = {169 -- 177}, year = {2015}, abstract = {Ziel einer neuen Studieneingangsphase ist, den Studierenden bis zum Ende des ersten Semesters ein vielf{\"a}ltiges Berufsbild der Informatik und Wirtschaftsinformatik mit dem breiten Aufgabenspektrum aufzubl{\"a}ttern und damit die Zusammenh{\"a}nge zwischen den einzelnen Modulen des Curriculums zu verdeutlichen. Die Studierenden sollen in die Lage versetzt werden, sehr eigenst{\"a}ndig die Planung und Gestaltung ihres Studiums in die Hand zu nehmen.}, language = {de} } @article{Schmitz2015, author = {Schmitz, Friederike}, title = {Tierschutz, Tierrechte oder Tierbefreiung?}, series = {MenschenRechtsMagazin : MRM ; Informationen, Meinungen, Analysen}, volume = {20}, journal = {MenschenRechtsMagazin : MRM ; Informationen, Meinungen, Analysen}, number = {2}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1434-2820}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-94912}, pages = {87 -- 96}, year = {2015}, abstract = {I. Einleitung II. Ethik III. Moralische Tierrechte? IV. Die Nutzung von Tieren V. Ethik und politische Theorie der Nutztierhaltung VI. Tierrechte oder Tierbefreiung?}, language = {de} }