TY - RPRT A1 - Bommes, Michael A1 - Olfert, Helena A1 - Şimşek, Yazgül A1 - Mehlem, Ulrich A1 - Boneß, Anja A1 - Ayan, Müge A1 - Koçbaş, Dilara ED - Schroeder, Christoph ED - Sürig, Inken T1 - Literacy acquisition in schools in the context of migration and multilingualism T1 - Schriftspracherwerb in der Schule unter den Bedingungen von Migration und Mehrsprachigkeit BT - Research report (2007-2011) BT - Projektbericht (2007-2011) N2 - Literacy acquisition is one of the primary goals of school education, and usually it takes place in the national language of the respective country. At the same time, schools accommodate pupils with different home languages who might or might not be fluent in the national language and who start from other linguistic backgrounds in their acquisition of literacy. While it is safe to say that schools with a monolingual policy are not prepared to deal with the factual multilingualism in their classrooms in a systematic way, bilingual pupils have to deal with it nonetheless. The interdisciplinary and comparative research project “Literacy Acquisition in Schools in the Context of Migration and Multilingualism” (LAS) investigated the practical processes of literacy acquisition in two countries, Germany and Turkey, where the monolingual orientation of schools is as much a reality as are the multilingual backgrounds of many of their pupils. The basic assumption was that pupils cope with the ways they are engaged by the school – both socially and academically – based on their cultural and linguistic repertoires acquired biographically, providing them with more or less productive options regarding the acquisition of literary skills. By comparing the literary development of bilingual children with that of their monolingual classmates throughout one school year in the first and the seventh grade in Germany and Turkey, respectively, we found out that the restricting potential of multilingualism is located rather on the part of the schools than on the part of the pupils. While the individual bilingual pupil almost naturally uses his/her home language as a resource for literacy acquisition in the school language, schools still tend to regard the multilingual backgrounds of their pupils as irrelevant or even as an impediment to adequate schooling. We argue that by ignoring or even suppressing the specific linguistic potentials of bilingualism, bilingual pupils are put at a structural disadvantage. This research report is the slightly revised but full version of the final study project report from 2011 that was until now not available as a quotable publication. While several years have passed since the primary research was finalized, the addressed issues have lost none of their relevance. The report is accompanied by numerous publications in the frame of the LAS project, as well as by a web page (https://www.uni-potsdam.de/de/daf/projekte/las), which also contains the presentations from the final LAS-Conference, including valuable discussions of the report from renowed experts in the field. N2 - Der Erwerb von Schriftsprache ist eines der Hauptziele der schulischen Bildung und erfolgt in der Regel in der dominanten Sprache des jeweiligen Landes. Gleichzeitig haben viele Schülerinnen und Schüler eine andere Familiensprache als die Landessprache. Den Erwerb der Schriftsprache in der Landessprache gehen sie von einem anderen sprachlichen Hintergrund aus an als monolinguale Schülerinnen und Schüler. Die Schule ist mit ihrer monolingualen Politik weitestgehend nicht bereit, sich mit der faktischen Mehrsprachigkeit in ihren Klassenräumen systematisch umzugehen, die zweisprachigen Schülerinnen und Schüler selbst aber müssen sich damit auseinandersetzen. Das interdisziplinäre und vergleichende Forschungsprojekt "Literacy Acquisition in Schools in the Context of Migration and Multilingualism" (LAS) untersuchte die praktischen Prozesse des Schriftspracherwerbs in zwei Ländern, Deutschland und der Türkei, in denen die einsprachige Ausrichtung von Schulen ebenso Realität ist wie der mehrsprachige Hintergrund vieler ihrer Schülerinnen und Schüler. Die Grundannahme war, dass die Schülerinnen und Schüler auf der Grundlage ihres biographisch erworbenen kulturellen und sprachlichen Repertoires einen spezifischen Weg finden, mit den sprachlichen und sozialen Herausforderungen und Erwartungen der Schule zurecht zu kommen und mehr oder weniger produktive und kreative Wege des Schriftspracherwerbs entwickeln. Der in dem Projekt vorgenommene Vergleich des Schriftspracherwerbs zweisprachiger Kinder mit der ihren einsprachigen Klassenkameraden während eines Schuljahres in der ersten bzw. siebten Klasse in Deutschland und der Türkei zeigt, dass die Mehrsprachigkeit der Schülerinnen und Schüler eher ein Problem der Schule ist als eins der Schülerinnen und Schüler. Während der/die einzelne zweisprachige Schüler/in fast selbstverständlich seine/ihre Familiensprache als Ressource für den Schriftspracherwerb in der dominanten Schulsprache nutzt, neigen die Schulen immer noch dazu, den mehrsprachigen Hintergrund ihrer Schüler als irrelevant oder sogar als Hindernis für eine adäquate Schulbildung zu betrachten. Wir argumentieren, dass zweisprachige Schüler strukturell benachteiligt werden, wenn die Schule die spezifischen sprachlichen Potenziale der Zweisprachigkeit ignoriert oder sogar unterdrückt. Dieser Forschungsbericht ist die leicht revidierte, aber vollständige Version des Abschlussberichts der Studiengruppe aus dem Jahr 2011, der bisher nicht als zitierfähige Publikation verfügbar war. Obwohl seit dem Abschluss unserer Forschung mehrere Jahre vergangen sind, haben die behandelten Themen nichts von ihrer Relevanz verloren. Der Bericht wird begleitet von zahlreichen Publikationen im Rahmen des LAS-Projekts sowie von einer Webseite (https://www.uni-potsdam.de/de/daf/projekte/las), die auch die Präsentationen der abschliessenden LAS-Konferenz enthält, einschliesslich wertvoller Diskussionen des Berichts von namhaften Experten auf dem Gebiet der schulischen Bildung. KW - acqusition of literacy KW - school KW - second language acquisition KW - bilingualism KW - Turkish KW - German KW - Kurdish (Kurmanjî) KW - Schriftspracherwerb KW - Schule KW - Zweitspracherwerb KW - Zweisprachigkeit KW - Türkisch KW - Deutsch KW - Kurdisch (Kurmanji) Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-471793 ER - TY - RPRT A1 - Faber, Eike A1 - Tipold, Marc T1 - Justice carved into the body BT - Maiming corporal punishments in the pre-modern world Y1 - 2022 CY - Potsdam ER - TY - RPRT A1 - Gagrčin, Emilija A1 - Schaetz, Nadja A1 - Rakowski, Niklas A1 - Toth, Roland A1 - Renz, André A1 - Vladova, Gergana A1 - Emmer, Martin T1 - We and AI BT - living in a datafied world : experiences & attitudes of young Europeans KW - sociology & anthropology KW - technology (applied sciences) KW - sociology of science KW - sociology of technology KW - research on science and technology KW - technology assessment KW - artificial intelligence KW - digitalization KW - educational technology KW - decision making KW - data security KW - monitoring KW - data protection KW - automation KW - Europe KW - attitude KW - young adult KW - technological change KW - new technology Y1 - 2021 U6 - https://doi.org/10.34669/wi/1 PB - Weizenbaum Institute for the Networked Society - the German Internet CY - Berlin ER - TY - RPRT A1 - Huđek, Helena A1 - Žganec, Krešimir A1 - Pusch, Martin T. T1 - A review of hydropower dams in Southeast Europe BT - distribution, trends and availability of monitoring data using the example of a multinational Danube catchment subarea T2 - Renewable & sustainable energy reviews N2 - Currently, Southeast Europe (SEE) is witnessing a boom in hydropower plant (HPP) construction, which has not even spared protected areas. As SEE includes global hotspots of aquatic biodiversity, it is expected that this boom will result in a more severe impact on biodiversity than that of other regions. A more detailed assessment of the environmental risks resulting from HPP construction would have to rely on the existence of nearby hydrological and biological monitoring stations. For this reason, we review the distribution and trends of HPPs in the area, as well as the availability of hydrological and biological monitoring data from national institutions useable for environmental impact assessment. Our analysis samples tributary rivers of the Danube in Slovenia, Croatia, Bosnia and Herzegovina, Serbia, and Montenegro, referred to hereafter as TRD rivers. Currently, 636 HPPs are operating along the course of TRD rivers, most of which are small (<1 MW). An additional 1315 HPPs are currently planned to be built, mostly in Serbia and in Bosnia and Herzegovina. As official monitoring stations near HPPs are rare, the impact of those HPPs on river flow, fish and macro-invertebrates is difficult to assess. This manuscript represents the first regional review of hydropower use and of available data sources on its environmental impact for an area outside of the Alps. We conclude that current hydrological and biological monitoring in TRD rivers is insufficient for an assessment of the ecological impacts of HPPs. This data gap also prevents an adequate assessment of the ecological impacts of planned HP projects, as well as the identification of appropriate measures to mitigate the environmental effects of existing HPPs. KW - renewable energy KW - environmental monitoring KW - water framework directive KW - environmental impact assessment KW - macroinvertebrates KW - fish KW - hydrology Y1 - 2020 U6 - https://doi.org/10.1016/j.rser.2019.109434 SN - 1364-0321 SN - 1879-0690 VL - 117 PB - Elsevier Science CY - Amsterdam [u.a.] ER - TY - RPRT A1 - Küttner, Uwe-Alexander T1 - Opening Up CA – An Interactional Linguist’s View on ICCA-14 T2 - Gesprächsforschung : Online-Zeitschrift zur verbalen Interaktion Y1 - 2015 UR - http://www.gespraechsforschung-online.de/fileadmin/dateien/heft2014/tb-kuettner.pdf SN - 1617-1837 IS - 15 SP - 264 EP - 289 PB - Verlag für Gesprächsforschung CY - Mannheim ER - TY - RPRT A1 - Sultanow, Eldar A1 - Koch, Christian A1 - Cox, Sean T1 - Collatz Sequences in the Light of Graph Theory N2 - The Collatz conjecture is a number theoretical problem, which has puzzled countless researchers using myriad approaches. Presently, there are scarcely any methodologies to describe and treat the problem from the perspective of the Algebraic Theory of Automata. Such an approach is promising with respect to facilitating the comprehension of the Collatz sequence’s "mechanics". The systematic technique of a state machine is both simpler and can fully be described by the use of algebraic means. The current gap in research forms the motivation behind the present contribution. The present authors are convinced that exploring the Collatz conjecture in an algebraic manner, relying on findings and fundamentals of Graph Theory and Automata Theory, will simplify the problem as a whole. KW - Collatz KW - Cayley Graph KW - Free Group KW - Reachability Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-437416 ET - 2nd version ER - TY - RPRT A1 - Sultanow, Eldar A1 - Koch, Christian A1 - Cox, Sean T1 - Collatz Sequences in the Light of Graph Theory N2 - The Collatz conjecture is a number theoretical problem, which has puzzled countless researchers using myriad approaches. Presently, there are scarcely any methodologies to describe and treat the problem from the perspective of the Algebraic Theory of Automata. Such an approach is promising with respect to facilitating the comprehension of the Collatz sequences "mechanics". The systematic technique of a state machine is both simpler and can fully be described by the use of algebraic means. The current gap in research forms the motivation behind the present contribution. The present authors are convinced that exploring the Collatz conjecture in an algebraic manner, relying on findings and fundamentals of Graph Theory and Automata Theory, will simplify the problem as a whole. KW - Collatz KW - Cayley Graph KW - Free Group KW - Reachability Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-430089 ER - TY - RPRT A1 - Sultanow, Eldar A1 - Koch, Christian A1 - Cox, Sean T1 - Collatz Sequences in the Light of Graph Theory N2 - It is well known that the inverted Collatz sequence can be represented as a graph or a tree. Similarly, it is acknowledged that in order to prove the Collatz conjecture, one must demonstrate that this tree covers all (odd) natural numbers. A structured reachability analysis is hitherto not available. This paper investigates the problem from a graph theory perspective. We define a tree that consists of nodes labeled with Collatz sequence numbers. This tree will be transformed into a sub-tree that only contains odd labeled nodes. The analysis of this tree will provide new insights into the structure of Collatz sequences. The findings are of special interest to possible cycles within a sequence. Next, we describe the conditions which must be fulfilled by a cycle. Finally, we demonstrate how these conditions could be used to prove that the only possible cycle within a Collatz sequence is the trivial cycle, starting with the number 1, as conjectured by Lothar Collatz. KW - Collatz KW - Cayley Graph KW - Free Group KW - Reachability Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-441859 ET - 3rd version ER - TY - RPRT A1 - Sultanow, Eldar A1 - Koch, Christian A1 - Cox, Sean T1 - Collatz Sequences in the Light of Graph Theory N2 - It is well known that the inverted Collatz sequence can be represented as a graph or a tree. Similarly, it is acknowledged that in order to prove the Collatz conjecture, one must demonstrate that this tree covers all odd natural numbers. A structured reachability analysis is hitherto not available. This paper investigates the problem from a graph theory perspective. We define a tree that consists of nodes labeled with Collatz sequence numbers. This tree will be transformed into a sub-tree that only contains odd labeled nodes. The analysis of this tree will provide new insights into the structure of Collatz sequences. The findings are of special interest to possible cycles within a sequence. Next, we describe the conditions which must be fulfilled by a cycle. Finally, we demonstrate how these conditions could be used to prove that the only possible cycle within a Collatz sequence is the trivial cycle, starting with the number one, as conjectured by Lothar Collatz. KW - Collatz KW - Cayley Graph KW - Free Group KW - Reachability Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-443254 ET - 4th version ER - TY - RPRT A1 - Sultanow, Eldar A1 - Koch, Christian A1 - Cox, Sean T1 - Collatz Sequences in the Light of Graph Theory N2 - It is well known that the inverted Collatz sequence can be represented as a graph or a tree. Similarly, it is acknowledged that in order to prove the Collatz conjecture, one must demonstrate that this tree covers all odd natural numbers. A structured reachability analysis is hitherto unavailable. This paper investigates the problem from a graph theory perspective. We define a tree that consists of nodes labeled with Collatz sequence numbers. This tree will be transformed into a sub-tree that only contains odd labeled nodes. Furthermore, we derive and prove several formulas that can be used to traverse the graph. The analysis covers the Collatz problem both in it’s original form 3x + 1 as well as in the generalized variant kx + 1. Finally, we transform the Collatz graph into a binary tree, following the approach of Kleinnijenhuis, which could form the basis for a comprehensive proof of the conjecture. KW - Collatz Conjecture KW - Free Group KW - Multiplicative Group KW - Cyclic Group KW - Cayley Graph KW - Cycle KW - Tree KW - Binary Tree Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-482140 ET - Fifth version ER - TY - RPRT A1 - Sultanow, Eldar A1 - Volkov, Denis A1 - Cox, Sean T1 - Introducing a Finite State Machine for processing Collatz Sequences N2 - The present work will introduce a Finite State Machine (FSM) that processes any Collatz Sequence; further, we will endeavor to investigate its behavior in relationship to transformations of a special infinite input. Moreover, we will prove that the machine’s word transformation is equivalent to the standard Collatz number transformation and subsequently discuss the possibilities for use of this approach at solving similar problems. The benefit of this approach is that the investigation of the word transformation performed by the Finite State Machine is less complicated than the traditional number-theoretical transformation. KW - Collatz Conjecture KW - State Machine KW - Graph KW - Double Colored Edges Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-399223 ET - 1st version ER - TY - RPRT A1 - Sultanow, Eldar A1 - Volkov, Denis A1 - Cox, Sean T1 - Introducing a Finite State Machine for processing Collatz Sequences N2 - The present work will introduce a Finite State Machine (FSM) that processes any Collatz Sequence; further, we will endeavor to investigate its behavior in relationship to transformations of a special infinite input. Moreover, we will prove that the machine’s word transformation is equivalent to the standard Collatz number transformation and subsequently discuss the possibilities for use of this approach at solving similar problems. The benefit of this approach is that the investigation of the word transformation performed by the Finite State Machine is less complicated than the traditional number-theoretical transformation. KW - Collatz Conjecture KW - State Machine KW - Graph KW - Double Colored Edges Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-404738 ET - 2nd version ER - TY - RPRT A1 - Zerfaß, Ansgar A1 - Stieglitz, Stefan A1 - Clausen, Sünje A1 - Ziegele, Daniel A1 - Berger, Karen T1 - Communications trend radar 2023 BT - state revival, scarcity management, unimagination, augmented workflows & parallel worlds T2 - Communication insights N2 - How do social changes, new technologies or new management trends affect communication work? A team of researchers at Leipzig University and the University of Potsdam (Germany) observed new developments in related disciplines. As a result, the five most important trends for corporate communications are identified annually and published in the Communications Trend Radar. Thus, Communications managers can identify challenges and opportunities at an early stage, take a position, address issues and make decisions. For 2023, the Communications Trend Radar identifies five key trends for corporate communications: State Revival, Scarcity Management, Unimagination, Parallel Worlds, Augemented Workflows. KW - public relation KW - trend KW - country KW - stakeholders KW - bottleneck KW - resilience KW - artificial intelligence KW - virtual reality Y1 - 2023 UR - https://hdl.handle.net/10419/270993 U6 - https://doi.org/10419/270993 SN - 2749-893X VL - 17 PB - Academic Society for Management & Communication CY - Leipzig ER -