@article{6444, author = {{Eickhoff, A. and Kremer, H.-Hugo and Zoyke, A.}}, journal = {{Zeitschrift für Berufs- und Wirtschaftspädagogik}}, pages = {{37--56}}, title = {{{‚Übergänge mit System?!‘ - Eine Betrachtung des Übergangs- und Berufsorientierungsprozesses aus der Perspektive von Jugendlichen}}}, volume = {{1}}, year = {{2014}}, } @article{6445, author = {{Kremer, H.-Hugo and Rüschen, E.}}, journal = {{Zeitschrift für Hochschulentwicklung}}, number = {{2}}, title = {{{Den Übergang erleben: Übergangshandeln an der Fakultät für Wirtschaftswissenschaften (Wissenschaftlicher Beitrag)}}}, volume = {{9}}, year = {{2014}}, } @inbook{6446, author = {{Kremer, H.-Hugo and Tramm, T. and Wilbers, K.}}, booktitle = {{Kaufmännische Bildung. Sondierungen zu einer vernachlässigten Sinndimension}}, title = {{{Einleitung}}}, volume = {{7-9}}, year = {{2014}}, } @inbook{6447, author = {{Kremer, H.-Hugo and Kallenbach, G. and Sprey, M.}}, booktitle = {{Kaufmännische Bildung. Sondierungen zu einer vernachlässigten Sinndimension}}, pages = {{118--134}}, title = {{{Das Kaufmännische: Kaufmännische Bildung in der Ausbildungsvorbereitung }}}, year = {{2014}}, } @inproceedings{441, abstract = {{Das Future Internet soll den Anforderungen heutiger und zuk{\"u}nftiger daten-intensiver Internet-Anwendungen besser gerecht werden als dies heute der Fall ist. Seit einigen Jahren wird an unterschiedlichen Verfahren geforscht, die das „Future Internet“ erm{\"o}glichen sollen – diese Ans{\"a}tze gehen weit {\"u}ber die Ziele von IPv6 hinaus. In diesem Beitrag stellen wir einige Kernpunkte der Future-Internet-Initiativen vor und identifizieren Gemeinsamkeiten der unterschiedlichen Konzepte. Wir beleuchten die Konsequenzen aus datenschutzrechtlicher Sicht und geben einen {\"U}berblick {\"u}ber Ans{\"a}tze, die die identifizierten Datenschutz-Probleme durch technische Maßnahmen bis zu einem gewissen Grad verhindern.}}, author = {{Sorge, Christoph and Petrlic, Ronald}}, booktitle = {{Tagungsband des 17. Internationalen Rechtsinformatik Symposions}}, title = {{{Datenschutz im Future Internet: rechtliche Aspekte und technische Maßnahmen}}}, year = {{2014}}, } @unpublished{442, abstract = {{We present a new transformation of chosen-plaintext secure predicate encryption schemes with public index into chosen-ciphertext secure schemes. Our construction requires only a universal one-way hash function and is selectively secure in the standard model. The transformation is not generic but can be applied to various existing schemes constructed from bilinear groups. Using common structural properties of these schemes we provide an efficient and simple transformation without overhead in form of one-time signatures or message authentication codes as required in the known generic transformations.}}, author = {{Blömer, Johannes and Liske, Gennadij}}, publisher = {{Universität Paderborn}}, title = {{{Constructing CCA-secure predicate encapsulation schemes from CPA-secure schemes and universal one-way hash functions}}}, year = {{2014}}, } @article{4424, abstract = {{In recent years, the design of study programmes in Higher Education (HE) has been given considerable attention by HE practitioners and researchers. Today, a sound body of concepts and experiences on different realisations of Bologna-conforming study programmes is available. The same, however, does not hold true for questions concerning the processes of implementing and further developing programmes. This paper investigates the challenges related with implementation, particularly at universities. A first aim is to understand the specifics of academic culture and their significance for programme implementation and development. Elaborating on this analysis, a second aim is to outline the role of educational developers in this process, as well as the necessary competencies to perform such a role.}}, author = {{Jenert, Tobias}}, journal = {{Zeitschrift für Hochschulentwicklung}}, keywords = {{Programmentwicklung, Studienprogramme, program development, educational development, academic culture, disciplinary culture}}, number = {{2}}, pages = {{1--12}}, publisher = {{Forum Neue Medien in der Lehre Austria}}, title = {{{Implementing Outcome-Oriented Study Programmes at University: The Challenge of Academic Culture}}}, volume = {{9}}, year = {{2014}}, } @techreport{443, abstract = {{The objective of this paper is to analyze the formation of group structures where individuals are allowed to engage in several groups at the same time. These structures are interpreted here as social networks. Each of the groups is supposed to have specific rules or constitutions governing which members may join or leave it. A social network is then considered to be stable if none of the groups is altered any more. Given this framework, we not only analyze which influence the constitutions have on network formation but we also provide requirements under which stable networks are induced for sure. Furthermore, by embedding many-to-many matchings into our setting, we apply our model to job markets with labor unions. To some extent the unions may provide job guarantees and, therefore, have influence on the stability of the job market.}}, author = {{Mauleon, Ana and Röhl, Nils and Vannetelbosch, Vincent}}, publisher = {{Universität Paderborn}}, title = {{{Constitutions and Social Networks}}}, year = {{2014}}, } @article{444, abstract = {{BackgroundMedical nonpersistence is a worldwide problem of striking magnitude. Although many fields of studies including epidemiology, sociology, and psychology try to identify determinants for medical nonpersistence, comprehensive research to explain medical nonpersistence from an economics perspective is rather scarce.ObjectivesThe aim of the study was to develop a conceptual framework that augments standard economic choice theory with psychological concepts of behavioral economics to understand how patients’ preferences for discontinuing with therapy arise over the course of the medical treatment. The availability of such a framework allows the targeted design of mechanisms for intervention strategies.MethodsOur conceptual framework models the patient as an active economic agent who evaluates the benefits and costs for continuing with therapy. We argue that a combination of loss aversion and mental accounting operations explains why patients discontinue with therapy at a specific point in time. We designed a randomized laboratory economic experiment with a student subject pool to investigate the behavioral predictions.ResultsSubjects continue with therapy as long as experienced utility losses have to be compensated. As soon as previous losses are evened out, subjects perceive the marginal benefit of persistence lower than in the beginning of the treatment. Consequently, subjects start to discontinue with therapy.ConclusionsOur results highlight that concepts of behavioral economics capture the dynamic structure of medical nonpersistence better than does standard economic choice theory. We recommend that behavioral economics should be a mandatory part of the development of possible intervention strategies aimed at improving patients’ compliance and persistence behavior.}}, author = {{Mir Djawadi, Behnud and Fahr, Rene and Turk, Florian}}, journal = {{Value in Health}}, number = {{8}}, pages = {{814--822}}, publisher = {{Elsevier}}, title = {{{Conceptual Model and Economic Experiments to Explain Nonpersistence and Enable Mechanism Designs Fosterin Behavioral Change}}}, doi = {{10.1016/j.jval.2014.08.2669}}, year = {{2014}}, } @article{445, abstract = {{We consider the inner core as a solution concept for cooperative games with non-transferable utility (NTU) and its relationship to payoffs of competitive equilibria of markets that are induced by NTU games. An NTU game is an NTU market game if there exists a market such that the set of utility allocations a coalition can achieve in the market coincides with the set of utility allocations the coalition can achieve in the game. In this paper, we introduce a new construction of a market based on a closed subset of the inner core which satisfies a strict positive separability. We show that the constructed market represents the NTU game and, further, has the given closed set as the set of payoff vectors of competitive equilibria. It turns out that this market is not uniquely determined, and thus, we obtain a class of markets. Our results generalize those relating to competitive outcomes of NTU market games in the literature.}}, author = {{Brangewitz, Sonja and Gamp, Jan-Philip}}, journal = {{Economic Theory}}, number = {{3}}, pages = {{529--554}}, publisher = {{Springer}}, title = {{{Competitive outcomes and the inner core of NTU market games}}}, doi = {{10.1007/s00199-014-0846-7}}, year = {{2014}}, } @inproceedings{446, abstract = {{This paper considers the problem of how to efficiently share a wireless medium which is subject to harsh external interference or even jamming. While this problem has already been studied intensively for simplistic single-hop or unit disk graph models, we make a leap forward and study MAC protocols for the SINR interference model (a.k.a. the physical model). We make two contributions. First, we introduce a new adversarial SINR model which captures a wide range of interference phenomena. Concretely, we consider a powerful, adaptive adversary which can jam nodes at arbitrary times and which is only limited by some energy budget. The second contribution of this paper is a distributed MAC protocol which provably achieves a constant competitive throughput in this environment: we show that, with high probability, the protocol ensures that a constant fraction of the non-blocked time periods is used for successful transmissions.}}, author = {{Ogierman, Adrian and Richa, Andrea W. and Scheideler, Christian and Schmid, Stefan and Zhang, Jin}}, booktitle = {{Proceedings of the 33rd Annual IEEE International Conference on Computer Communications (INFOCOM)}}, pages = {{2751----2759}}, title = {{{Competitive MAC under adversarial SINR}}}, doi = {{10.1109/INFOCOM.2014.6848224}}, year = {{2014}}, } @inproceedings{447, abstract = {{Automatic service composition is still a challengingtask. It is even more challenging when dealing witha dynamic market of services for end users. New servicesmay enter the market while other services are completelyremoved. Furthermore, end users are typically no experts in thedomain in which they formulate a request. As a consequence,ambiguous user requests will inevitably emerge and have tobe taken into account. To meet these challenges, we proposea new approach that combines automatic service compositionwith adaptive service recommendation. A best first backwardsearch algorithm produces solutions that are functional correctwith respect to user requests. An adaptive recommendationsystem supports the search algorithm in decision-making.Reinforcement Learning techniques enable the system to adjustits recommendation strategy over time based on user ratings.The integrated approach is described on a conceptional leveland demonstrated by means of an illustrative example fromthe image processing domain.}}, author = {{Jungmann, Alexander and Mohr, Felix and Kleinjohann, Bernd}}, booktitle = {{Proceedings of the 10th World Congress on Services (SERVICES)}}, pages = {{346--353}}, title = {{{Combining Automatic Service Composition with Adaptive Service Recommendation for Dynamic Markets of Services}}}, doi = {{10.1109/SERVICES.2014.68}}, year = {{2014}}, } @inproceedings{4470, abstract = {{Abstract Summary: Study programs are currently receiving more attention in Europe. In consequence, it can be observed that the roles of program development and management are professionalized. In the proposed round table, we would like to discuss the role of educational developers to support this professionalization via measures of training and process support in the light of recent developments in Switzerland. Abstract Text: Professionalization of program development as an institutional responsibility In Switzerland, different developments in higher education have led to increased attention to the development and management of the study programs such as the Bologna process, an increasingly competitive environment, the tertiarisation of a number of professions formerly acquired through vocational education. Furthermore, the national qualification framework and in particular accreditation processes require HEI to demonstrate the effectiveness of their activities (e.g., Sursock & Smit, 2010). Many different actors have been involved in development processes on the program level but also within educational development units. However, so far a systematic discourse on key issues regarding the management and development of study programs is missing, not only in German-speaking Europe. The following main question will guide the round table session: How can educational development give vital impulses for program development? Our starting points are two approaches or frameworks from Swiss HEI: a) the definition of competencies for new program professionals at the Zurich University for Teacher Education and b) a process for the strategic development of didactically-aligned study programs at the University of St. Gallen. Framework 1: Competencies for program managers The experiences with a training program for study program managers at the Zurich University for Teacher Education are reported. Over a period of four years, a competency profile has been developed and refined. Insights into the challenges and struggles of this role were gained. Despite diverse job characteristics of program managers (often resulting from an institution-specific history), there is a common set of competencies necessary to successfully cope with organizational complexity such as role competency (Schein, 1992) and lateral leadership (Kühl et al., 2005). Framework 2: Towards a systematic development of study programs The second initiative concerns the strategic approach to program development implemented at the University of St. Gallen (Brahm & Jenert, 2013; Jenert, 2011). In this structured process, the program goes through four process steps: process initiation, program analysis, program development, evaluation of the process and results. A major challenge in this process is the role of program professionals. The goal is to establish them as change agents for a didactically-aligned study program. Outcome: Role of educational development After briefly introducing the two examples, the roles of program professionals and educational development in HEI will be discussed. The questions guiding the discussion will be: • How can program development be established as a continuing task, closely tied to quality development? • How can the competencies of program professionals be developed and the local capacity and ownership be strengthened? • How can educational development support program development and provide vital impulses? Audience Engagement. Depending on the number of participants, first the questions will be discussed in groups. To put the results of the discussion on record, it will be summarized and uploaded in our weblog for further discussion after the session.}}, author = {{Brahm, Taiga and Zellweger, Franziska and Jenert, Tobias and Thomann, Geri}}, keywords = {{curriculum development, study programs, Bologna, educational development, higher education}}, location = {{Stockholm}}, title = {{{Developing study programs as a continuous task-the role of educational developers}}}, year = {{2014}}, } @inproceedings{4472, abstract = {{Das erste Studienjahr wird als wesentlicher Übergang von der Schule in die Hochschule angesehen. Im Vordergrund steht dabei häufig die Fragen der Identitätsfindung der Studierenden und das "Ankommen" im neuen Lebensabschnitt (Briggs, Clark, & Hall, 2012; Scanlon, Rowling, & Weber, 2007). In diesem Zusammenhang werden ganz unterschiedliche Aspekte untersucht, z. B. die vorhandenen Lernkompetenzen oder das Zeitmanagement der Studierenden (Barron & D'Annunzio-Green, 2009), vorhandene Einführungsprogramme an Hochschulen (z.B. Gale & Parker, 2012) oder dem ‚student engagement‘ während des ersten Jahres (Krause & Coates, 2008). Obwohl die Motivation der Studierenden als starker Prädiktor für die Leistung angesehen wird (z. B. Busato, Prins, Elshouta, & Hamaker, 2000), wurde die Motivationsentwicklung im ersten Studienjahr bis dato nur selten betrachtet. Die vorliegende Mixed Methods-Studie setzt an dieser Forschungslücke an und untersucht die Entwicklung der Studienmotivation von Wirtschaftsstudierenden im Verlauf des ersten Studienjahres. Im Rahmen einer quantitativen Längsschnittuntersuchung mit drei Messzeitpunkten wird dabei die Motivationsentwicklung über die gesamte Studierendenpopulation hinweg erfasst. Im Mittelpunkt steht die Frage, wie sich die intrinsische und extrinsische Studienmotivation sowie die studienbezogene Selbstwirksamkeit über das erste Studienjahr verändern. Zudem wird untersucht, inwiefern verschiedene studienbezogene Variablen (z. B. Angst) sich auf die Motivationsentwicklung auswirken. Um vertiefte Erkenntnisse über die Bedeutsamkeit verschiedener Gestaltungsmerkmale des ersten Studienjahres auf die Motivationsentwicklung der Studierenden zu gewinnen, wurde parallel zur quantitativen Untersuchung eine qualitative Längsschnittstudie durchgeführt mit dem Ziel, (1) verschiedene Verläufe der Motivationsentwicklung und (2) kritische Ereignisse im Eingangsjahr zu identifizieren. Das vorliegende Papier zeigt in den folgenden beiden Kapiteln den theoretischen Bezugsrahmen der Studie und die methodische Vorgehensweise. Daraufhin werden die Ergebnisse sowohl der quantitativen als auch der qualitativen Studie dargestellt und im Rahmen der Diskussion miteinander verbunden.}}, author = {{Jenert, Tobias and Brahm, Taiga}}, keywords = {{Motivationsentwicklung, Hochschule, motivation, Längsschnitt, Mixed Methods}}, location = {{Frankfurt am Main }}, title = {{{Entwicklung der Motivation von Studierenden der Wirtschafts-wissenschaften im ersten Studienjahr-eine Mixed-Methods-Studie}}}, year = {{2014}}, } @inproceedings{4473, abstract = {{Research on entrepreneurial learning often stresses the role of experience and previous knowledge. We aim to advance this perspective by pointing out the prerequisites and limitations of experience-based forms of learning and by adapting findings from educational psychology to the entrepreneurial context. Developing a model of self-regulated entrepreneurial learning (SREL) we pursue a more process oriented view of entrepreneurial learning in order to explain how learning unfolds in contexts of uncertainty and novelty when relevant experience and knowledge are scarce. The model comprises a planning, a performance and a review phase in order to support entrepreneurs in their learning process. It is suggested how SREL is related to self-efficacy, emotions and cognitive biases.}}, author = {{Fust, Alexander and Jenert, Tobias}}, keywords = {{Unternehmertum, lernen}}, location = {{Dublin }}, title = {{{Self-Regulation and Entrepreneurial Learning}}}, year = {{2014}}, } @inproceedings{4474, abstract = {{The transition from school to university can be overwhelming for some students. While students' motivation is considered a strong predictor of performance, the development of motivation during students' transition from high school to university has rarely been investigated. Additionally, little is known about the relation of motivational aspects with other influences on study performance. The present mixed methods study addresses this research gap and examines the development of economics students' study motivation. The longitudinal mixed-method study included three waves of data collected using quantitative surveys and a series of five interviews conducted with 14 first-year students over eight months. Regarding students' development over time, the quantitative analysis showed a gradual decline in students' motivation. However, in the interviews, certain events during the first year were identified as critical incidents demotivating students. These insights into the development of students' motivation at a business school show that concrete incidents influence students' motivational development; thus, they could be transformed by structural changes.}}, author = {{Brahm, Taiga and Jenert, Tobias}}, keywords = {{motivation, business school, higher education, latent growth curve model, longitudinal study, mixed methods, interview, students}}, location = {{Leuven}}, title = {{{The crucial first year: The development of students' motivation at a Business School-a Mixed Methods Study}}}, year = {{2014}}, } @inproceedings{4475, abstract = {{Tertiary education comprises at least two phases, undergraduate and graduate studies. Often, the first year is regarded another, crucial phase where students familiarize with the study environment. It can be hypothesized that students' individual perceptions of learning and studying as well as the pedagogies they experience differ depending on their current study phase. Yet, differences between the phases in HE have rarely been investigated. To capture differences in student experiences in HE comprehensively, Jenert and Gebhardt (2010) have developed a framework describing Learning Culture in HEI. LC comprises a number of constructs on the three levels of the individual student, pedagogical interactions and the organization. The study first aims to quantitatively describe differences in LC between the phases of HE within a university. Based on this analysis, a second goal is to develop a deeper understanding of how students manage the transitions between different phases by applying qualitative research methods.}}, author = {{Gebhardt, Anja and Jenert, Tobias}}, keywords = {{Higher Education, Transitions, Bachelor, Master}}, location = {{Leuven}}, title = {{{Transition within higher education institutions (HEI): Differences in learning culture (LC) between first-year, bachelor, and master students at a business school}}}, year = {{2014}}, } @inproceedings{4476, abstract = {{Auseinandersetzungen über Forschungsmethodologien haben in den Bildungswissenschaften lange Tradition. Sie werden häufig unversöhnlich und mit Profilierung der Gegensätze geführt. Für uns hängt die Sinnhaftigkeit einer Forschungskonzeption von der Problemstellung und dem Erkenntnisinteresse ab. Dies gilt auch für Design-Based Research (DBR). Dieser Ansatz entstand als Reaktion auf die Kritik an mangelnder praktischer Anwendung von Befunden aus der empirisch-analytischen Lehr-Lernforschung. Als Ergebnis werden Theorien angestrebt, die für die Praxis einen Nutzen bieten und zugleich über die Anwendung in einer singulären Situation hinausgehen. Wir wollen folgenden Fragen nachgehen: Wo liegen die Gemeinsamkeiten, wo die Spezifika von DBR gegenüber bestehenden Methodologien? Wie wird der Generalisierungsanspruch von Theorien innerhalb von DBR verstanden und umgesetzt? Für welche Erkenntnisinteressen eignet sich DBR? Welche Methoden sind für DBR sinnvoll und können wie angewendet werden?}}, author = {{Brahm, Taiga and Jenert, Tobias}}, keywords = {{design-based research, gestatlungsbasierte Forschung, Erziehungswissenschaft, Design, Mixed Methods}}, location = {{Berlin}}, publisher = {{Humboldt-Universität}}, title = {{{Wie kann über DBR die wissenschaftliche und praktische Relevanz der Forschung gesichert werden?}}}, year = {{2014}}, } @misc{448, author = {{Gao, Yuan}}, publisher = {{Universität Paderborn}}, title = {{{Combination of Service Matching Steps in Consideration of Efficiency and Fuzziness}}}, year = {{2014}}, } @inproceedings{449, abstract = {{Cloud computing resulted in a continuously growing number of provided software services to be used by consumers. Brokers discover services that fit best to consumers' requirements by matching Qualityof-Service (QoS) properties. In order to negotiate Service-Level Agreements (SLAs), a provider has to determine the provided QoS based on QoS analyses. However, the risk for the provider to violate the SLA is high as the service's actual quality can deviate from the specified QoS due to uncertainties that occur during the provider's quality analysis. In this paper, we discuss current software engineering paradigms like cloud computing and service-oriented computing with respect to the amount of uncertainty they induce into service matching and SLA negotiations. As a result, we explain, why cloud computing reduces such uncertainties.}}, author = {{Becker, Matthias and Platenius, Marie Christin and Becker, Steffen}}, booktitle = {{Proceedings of the 2nd International Workshop on Cloud Service Brokerage (CSB)}}, pages = {{153--159}}, title = {{{Cloud Computing Reduces Uncertainties in Quality-of-Service Matching!}}}, doi = {{10.1007/978-3-319-14886-1_15}}, year = {{2014}}, }