TY - GEN A1 - Schick, Daniel A1 - Eckert, Sebastian A1 - Pontius, Niko A1 - Mitzner, Rolf A1 - Föhlisch, Alexander A1 - Holldack, Karsten A1 - Sorgenfrei, Florian T1 - Versatile soft X-ray-optical cross-correlator for ultrafast applications T2 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe N2 - We present an X-ray-optical cross-correlator for the soft (> 150 eV) up to the hard X-ray regime based on a molybdenum-silicon superlattice. The cross-correlation is done by probing intensity and position changes of superlattice Bragg peaks caused by photoexcitation of coherent phonons. This approach is applicable for a wide range of X-ray photon energies as well as for a broad range of excitation wavelengths and requires no external fields or changes of temperature. Moreover, the cross-correlator can be employed on a 10 ps or 100 fs time scale featuring up to 50% total X-ray reflectivity and transient signal changes of more than 20%. (C) 2016 Author(s). T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1331 Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-436962 SN - 1866-8372 IS - 1331 SP - 054304-1 EP - 054304-8 ER - TY - GEN A1 - Keck, Wolfgang A1 - Kohler, Ulrich A1 - Nauenburg, Ricarda T1 - Quality of life in the european union and the candidate countries BT - harmonized eurobarometer datafile 1998-2002 N2 - Harmonized data file as the basis for comparative analysis of quality of life in the Candidate Countries and the European Union member states, based on seven different data sets, one Eurobarometer survey covering 13 Candidate Countries with an identical set of variables conducted in April 2002, the other six Standard Eurobarometer of different subjects and fielded in different years, each with another set of questions identical with the CC Eurobarometer. Selected aggregate indicators of quality of life ... describing the social situation in the EU15 and Candidate Countries. Y1 - 2016 U6 - https://doi.org/10.7802/1209 PB - WZB - Wissenschaftszentrum Berlin für Sozialforschung ER - TY - JOUR A1 - Stollenwerk, Eric A1 - Dörfler, Thomas A1 - Schibberges, Julian T1 - Taking a new perspective BT - Mapping the Al Qaeda network through the eyes of the UN security council JF - Terrorism and political violence N2 - Network analysis has attracted significant attention when researching the phenomenon of transnational terrorism, particularly Al Qaeda. While many scholars have made valuable contributions to mapping Al Qaeda, several problems remain due to a lack of data and the omission of data provided by international organizations such as the UN. Thus, this article applies a social network analysis and subsequent mappings of the data gleaned from the Security Council's consolidated sanctions list, and asks what they can demonstrate about the structure and organizational characteristics of Al Qaeda. The study maps the Al Qaeda network on a large scale using a newly compiled data set. The analysis reveals that the Al Qaeda network consists of several hundred individual and group nodes connecting almost all over the globe. Several major nodes are crucial for the network structure, while simultaneously many other nodes only weakly and foremost regionally connect to the network. The article concludes that the findings tie in well to the latest research pointing to local and simultaneously global elements of Al Qaeda, and that the new data is a valuable source for further analyses, potentially in combination with other data. KW - Al Qaeda KW - network KW - social network analysis KW - terrorism KW - UN Y1 - 2016 U6 - https://doi.org/10.1080/09546553.2014.987341 SN - 0954-6553 SN - 1556-1836 VL - 28 IS - 5 SP - 950 EP - 970 PB - Taylor & Francis CY - London ER - TY - JOUR A1 - Leib, Julia T1 - Shaping peace: an investigation of the mechanisms underlying post-conflict peacebuilding JF - Peace, conflict & development : an interdisciplinary journal N2 - What shapes peace, and how can peace be successfully built in those countries affected by armed conflict? This paper examines mpeacebuilding in the aftermath of civil wars in order to identify the conditions for post-conflict peace. The field of civil war research is characterised by case studies, comparative analyses and quantitative research, which relate relatively little to each other. Furthermore, the complex dynamics of peacebuilding have hardly been investigated so far. Thus, the question remains of how best to enhance the prospects of a stable peace in post-conflict societies. Therefore, it is necessary to capture the dynamics of post-conflict peace. This paper aims at helping to narrow these research gaps by 1) presenting the benefits of set theoretic methods for peace and conflict studies; 2) identifying remote conflict environment factors and proximate peacebuilding factors which have an influence on the peacebuilding process and 3) proposing a set-theoretic multi-method research approach in order to identify the causal structures and mechanisms underlying the complex realm of post-conflict peacebuilding. By implementing this transparent and systematic comparative approach, it will become possible to discover the dynamics of post-conflict peace. KW - civil war KW - peacebuilding KW - post-conflict peace KW - set theory KW - QCA Y1 - 2016 SN - 1742-0601 IS - 22 SP - 25 EP - 76 PB - Univ. CY - Bradford ER - TY - CHAP A1 - Gronau, Norbert A1 - Grum, Marcus A1 - Bender, Benedict T1 - Determining the optimal level of autonomy in cyber-physical production systems T2 - IEEE 14th International Conference on Industrial Informatics (INDIN) N2 - Traditional production systems are enhanced by cyber-physical systems (CPS) and Internet of Things. A kind of next generation systems, those cyber-physical production systems (CPPS) are able to raise the level of autonomy of its production components. To find the optimal degree of autonomy in a given context, a research approach is formulated using a simulation concept. Based on requirements and assumptions, a cyber-physical market is modeled and qualitative hypotheses are formulated, which will be verified with the help of the CPPS of a hybrid simulation environment. KW - cyber-physical systems KW - hybrid simulation KW - Internet of Things KW - manufacturing systems KW - production engineering computing KW - cyber-physical production systems Y1 - 2017 U6 - https://doi.org/10.1109/INDIN.2016.7819367 SP - 1293 EP - 1299 PB - IEEE CY - New York ER - TY - CHAP A1 - Glaschke, Christian A1 - Gronau, Norbert A1 - Bender, Benedict T1 - Cross-System Process Mining using RFID Technology T2 - Proceedings of the Sixth International Symposium on Business Modeling and Software Design - BMSD N2 - In times of digitalization, the collection and modeling of business processes is still a challenge for companies. The demand for trustworthy process models that reflect the actual execution steps therefore increases. The respective kinds of processes significantly determine both, business process analysis and the conception of future target processes and they are the starting point for any kind of change initiatives. Existing approaches to model as-is processes, like process mining, are exclusively focused on reconstruction. Therefore, transactional protocols and limited data from a single application system are used. Heterogeneous application landscapes and business processes that are executed across multiple application systems, on the contrary, are one of the main challenges in process mining research. Using RFID technology is hence one approach to close the existing gap between different application systems. This paper focuses on methods for data collection from real world objects via RFID technology and possible combinations with application data (process mining) in order to realize a cross system mining approach. KW - Process Mining KW - RFID KW - Production KW - Cross-System Y1 - 2016 SN - 978-989-758-190-8 U6 - https://doi.org/10.5220/0006223501790186 SP - 179 EP - 186 PB - SCITEPRESS - Science and Technology Publications CY - Setúbal ER - TY - CHAP A1 - Bender, Benedict A1 - Fabian, Benjamin A1 - Lessmann, Stefan A1 - Haupt, Johannes T1 - E-Mail Tracking BT - status quo and novel countermeasures T2 - Proceedings of the 37th International Conference on Information Systems (ICIS) N2 - E-mail advertisement, as one instrument in the marketing mix, allows companies to collect fine-grained behavioural data about individual users’ e-mail reading habits realised through sophisticated tracking mechanisms. Such tracking can be harmful for user privacy and security. This problem is especially severe since e-mail tracking techniques gather data without user consent. Striving to increase privacy and security in e-mail communication, the paper makes three contributions. First, a large database of newsletter e-mails is developed. This data facilitates investigating the prevalence of e- mail tracking among 300 global enterprises from Germany, the United Kingdom and the United States. Second, countermeasures are developed for automatically identifying and blocking e-mail tracking mechanisms without impeding the user experience. The approach consists of identifying important tracking descriptors and creating a neural network-based detection model. Last, the effectiveness of the proposed approach is established by means of empirical experimentation. The results suggest a classification accuracy of 99.99%. KW - E-Mail Tracking KW - Countermeasures KW - Privacy KW - Security KW - Machine Learning Y1 - 2016 UR - https://aisel.aisnet.org/icis2016/ISSecurity/Presentations/13/ ER - TY - JOUR A1 - Reindl, Nicole A1 - Rauch, Thomas A1 - Miller Bertolami, Marcelo Miguel A1 - Todt, Helge Tobias A1 - Werner, K. T1 - Breaking news from the HST BT - the central star of the Stingray Nebula is now returning towards the AGB JF - Monthly notices of the Royal Astronomical Society N2 - SAO 244567 is a rare example of a star that allows us to witness stellar evolution in real time. Between 1971 and 1990, it changed from a B-type star into the hot central star of the Stingray Nebula. This observed rapid heating has been a mystery for decades, since it is in strong contradiction with the low mass of the star and canonical post-asymptotic giant branch (AGB) evolution. We speculated that SAO 244567 might have suffered from a late thermal pulse (LTP) and obtained new observations with Hubble Space Telescope (HST)/COS to follow the evolution of the surface properties of SAO 244567 and to verify the LTP hypothesis. Our non-LTE spectral analysis reveals that the star cooled significantly since 2002 and that its envelope is now expanding. Therefore, we conclude that SAO 244567 is currently on its way back towards the AGB, which strongly supports the LTP hypothesis. A comparison with state-of-the-art LTP evolutionary calculations shows that these models cannot fully reproduce the evolution of all surface parameters simultaneously, pointing out possible shortcomings of stellar evolution models. Thereby, SAO 244567 keeps on challenging stellar evolution theory and we highly encourage further investigations. KW - stars: AGB and post-AGB KW - stars: atmospheres KW - stars: evolution Y1 - 2016 U6 - https://doi.org/10.1093/mnrasl/slw175 SN - 0035-8711 SN - 1365-2966 VL - 464 SP - L51 EP - L55 PB - Oxford Univ. Press CY - Oxford ER - TY - CHAP A1 - Apelojg, Benjamin T1 - Teachers do not make mistakes? BT - two exploratives case studies ; Relationships between biographical aspects, thinking, behavioral patterns and experiences in classes ; First results of a qualitative study on the aspect of dealing with mistakes T2 - ATLAS.ti User Conference 2015 N2 - This article provides some insights into the complex relationships between thinking and behavioral patterns, bio­ graphical aspects and teaching style. The data was analyzed in the Grounded Theory tradition and with the help of ATLAS.ti. The results presented here offer preliminary findings only since the research is still ongoing. The focus is on the ways teachers deal with mistakes. Based on two case examples, it will be shown how the fear of making mistakes can lead to teacher-centered lessons, and thereby limiting pupils' possibilities to learn autonomously. KW - Umgang mit Fehlern KW - Didaktik KW - persönliche Entwicklung KW - Lernen KW - Auswirkungen auf Schüler KW - Dealing with mistakes KW - personal development KW - learning KW - teaching KW - effects on pupils KW - ATLAS.t Y1 - 2016 SN - 978-3-7983-2822-8 U6 - https://doi.org/10.14279/depositonce-5159 SP - 1 EP - 9 PB - Universitätsverlag der TU-Berlin CY - Berlin ER - TY - GEN A1 - Esguerra, Alejandro ED - Esguerra, Alejandro ED - Helmerich, Nicole ED - Risse, Thomas T1 - Conclusion T2 - Sustainability Politics and Limited Statehood: Contesting the New Modes of Governance N2 - This chapter revisits the role of the new modes of governance in areas of limited statehood. First, it states that there is no linear relationship between degrees of statehood and the overall effectiveness of new modes of sustainability governance. Second, the chapter states that, in most of the cases, national governments are hesitant or even actively hamper the development of new modes of governance. Third, it shows that the absence of the shadow of hierarchy can indeed lead to ineffective new modes of governance. However, the shadow of hierarchy does not necessarily need to be cast by states. Finally, the author reviews the complexities involved in participatory practices, stressing the importance of institutional structures and knowledgeable brokers. The chapter concludes by outlining fields for future research. Y1 - 2016 SN - 978-3-319-39871-6 SN - 978-3-319-39870-9 U6 - https://doi.org/10.1007/978-3-319-39871-6_9 SP - 211 EP - 224 PB - Cham CY - Basingstoke ER -