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See detailThe Association Between Cyberbullying, School Bullying, and Suicidality Among Adolescents
Zaborskis, Apolinaras; Ilionsky, Gabriela; Tesler, Riki et al

in Crisis (2018)

Background: Bullying and suicidality are serious worldwide problems with negative effects on the young population and therefore international comparisons in this field are of paramount importance. Aims ... [more ▼]

Background: Bullying and suicidality are serious worldwide problems with negative effects on the young population and therefore international comparisons in this field are of paramount importance. Aims: To analyze the prevalence of bullying and cyberbullying and their association with suicidal behavior among school-aged children in Israel, Lithuania, and Luxembourg. Method: In total, 3,814 15-year-olds from schools in Israel, Lithuania, and Luxembourg were surveyed in the Health Behavior in School-Aged Children (HBSC) cross-national survey in 2013/2014 using standardized anonymous questionnaires. Data analysis employed logistic regression and structural equation modeling (SEM). Results: In all, 6.5% of the adolescents reported being cyberbullied, 15.6% reported being bullied at school. In the previous 12 months, 38.6% reported experiencing emotions that stopped them from doing their usual activities, 17.8% considered attempting suicide, 12.0% made a suicide plan, and 9.5% attempted suicide. Victims of cyberbullying and school bullying had a significantly higher risk of suicidal ideations, plans, and attempts. The SEM analysis confirmed a significant overall effect of bullying on adolescent suicidality. The strongest effect was seen among Israeli students. Limitations: The prevalence estimates were obtained by self-report. Conclusion: The prevalence of adolescent cyberbullying, school bullying, and suicidal behavior is relatively high in Israel, Lithuania, and Luxembourg. Cyberbullying is a strong predictor of adolescent suicidality. [less ▲]

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See detailLes blockchains en 50 questions: comprendre le fonctionnement et les enjeux de cette technologie innovante
Dumas, J.-G.; Lafourcade, P.; Tichit, A. et al

Book published by Dunod - 1er (2018)

Depuis l’apparition de bitcoin, les innovations liées à la blockchain sont en plein essor. Ce livre tente d'expliquer le fonctionnement de cette technologie innovante mais aussi ses applications au ... [more ▼]

Depuis l’apparition de bitcoin, les innovations liées à la blockchain sont en plein essor. Ce livre tente d'expliquer le fonctionnement de cette technologie innovante mais aussi ses applications au travers de 50 questions comme: • Qu’est-ce qu’une blockchain ? • Quel est le lien entre le bitcoin et les blokchains ? • Qui sont les mineurs et que font-ils ? • Quelle est aujourd’hui la part des cryptomonnaies dans l’économie mondiale ? • Qu’est-ce qu’un smart contract (contrat intelligent) ? • Peut-on faire une blockchain sans bloc ? • Comment les blockchains vont-elles révolutionner le monde ? Voici quelques-unes des questions dont vous trouverez les réponses dans ce livre [less ▲]

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See detailResource Allocation and Relay Selection for Multi-User OFDM-Based Cooperative Networks with SWIPT
Gautam, Sumit UL; Lagunas, Eva UL; Chatzinotas, Symeon UL et al

Scientific Conference (2018, August)

In this paper, we investigate resource allocation and relay selection in a two-hop relay-assisted multi-user network, where the end users support Simultaneous Wireless Information and Power Transfer ... [more ▼]

In this paper, we investigate resource allocation and relay selection in a two-hop relay-assisted multi-user network, where the end users support Simultaneous Wireless Information and Power Transfer (SWIPT). In particular, we consider single source assisted by a set of spatially distributed relays able to amplify-and-forward orthogonal frequency division multiplexing (OFDM) signals carrying both data and power at the same time. The users are assumed to implement a power splitting technique where the received signal is orthogonally split in two streams of different power levels, where one signal stream is sent to the power harvesting module while the other is converted to baseband for information decoding. We aim at optimizing the users’ power splitting ratios as well as the relay, carrier and power assignment so that the end-users’ sum-rate is maximized subject to transmitted and harvested power constraints. Such joint optimization is combinatorial in nature with a non-convex structure. Therefore, we present a sub-optimal low complex solution based on the harmonic mean of the two-hop relay channel coefficients. Simulation results reveal that the proposed algorithm provides significant performance gains in comparison with a semi-random resource allocation and relay selection approach. [less ▲]

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See detailAutomated Extraction of Semantic Legal Metadata Using Natural Language Processing
Sleimi, Amin UL; Sannier, Nicolas UL; Sabetzadeh, Mehrdad UL et al

in the 26th IEEE International Requirements Engineering Conference, Banff, Alberta, 20-24 August 2018 (2018, August)

[Context] Semantic legal metadata provides information that helps with understanding and interpreting the meaning of legal provisions. Such metadata is important for the systematic analysis of legal ... [more ▼]

[Context] Semantic legal metadata provides information that helps with understanding and interpreting the meaning of legal provisions. Such metadata is important for the systematic analysis of legal requirements. [Objectives] Our work is motivated by two observations: (1) The existing requirements engineering (RE) literature does not provide a harmonized view on the semantic metadata types that are useful for legal requirements analysis. (2) Automated support for the extraction of semantic legal metadata is scarce, and further does not exploit the full potential of natural language processing (NLP). Our objective is to take steps toward addressing these limitations. [Methods] We review and reconcile the semantic legal metadata types proposed in RE. Subsequently, we conduct a qualitative study aimed at investigating how the identified metadata types can be extracted automatically. [Results and Conclusions] We propose (1) a harmonized conceptual model for the semantic metadata types pertinent to legal requirements analysis, and (2) automated extraction rules for these metadata types based on NLP. We evaluate the extraction rules through a case study. Our results indicate that the rules generate metadata annotations with high accuracy. [less ▲]

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See detailTapping the Potential of Diverse Founding Teams for Firm Growth: The Role of New Venture Activities
Tryba, Anne UL; Patzelt, Holger; Breugst, Nicola

Scientific Conference (2018, August)

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See detailMetamorphosis of educational understanding: Temporary Integration regarding Syrians in Turkey
Samuk, Sahizer UL

in Border Crossing (2018)

The integration of refugees in Turkey has been realized in the field with the help of DGMM (Directorate General on Migration Management), Kızılay and UNHCR mainly, and by many more international and non ... [more ▼]

The integration of refugees in Turkey has been realized in the field with the help of DGMM (Directorate General on Migration Management), Kızılay and UNHCR mainly, and by many more international and non-governmental organizations that have supported refugees by answering their short-term needs such as giving them cards for shopping, clothes, preparing them for winter (“winterization”) and providing educational assistance. I conducted 15 interviews with state officials, various NGOs and a few refugees. During my research many interesting points about integration policies (to-be-formed) at the moment in Turkey were discovered. One interesting finding was that the state officials do not like to use the word “integration”, as it is reminiscent of the way Turkish migrant workers were treated in Germany, where assimilation and integration were understood as the same concept. I use the term “temporary integration” for the case of all refugees, but this paper will focus mostly on the Syrians’ case. Within the context of temporariness, this paper’s central attention will be the educational integration of Syrian refugees in Turkey. I argue in the paper that the temporariness and the nostalgia with the Ottoman past are two main elements mostly present regarding the educational integration of Syrians in Turkey. [less ▲]

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See detailSpectroscopic Studies of dissimilar Al-Cu laser welding
Schmalen, Pascal Guy UL; Plapper, Peter UL

in proceedings of asme msec 2018 (2018)

This paper describes a novel method to analyze the effect of the fiber laser induced plasma on welding of dissimilar Al and Cu. Based on spectroscopic studies, specific wavelengths were found to be ... [more ▼]

This paper describes a novel method to analyze the effect of the fiber laser induced plasma on welding of dissimilar Al and Cu. Based on spectroscopic studies, specific wavelengths were found to be suitable for process monitoring during laser welding. For aluminum, the double peak at 394.4 and 396.1 nm was studied, for cu the 578 nm peak was studied. The characteristic peaks were observed by multiple photodiodes equipped with narrow optical filters with varying FWHM. Analyzing the plasma emissions of the process enabled to detect material changes in the plasma plume. This novel method has the advantage of higher sampling rate combined with reduced costs compared to a spectrometer and is thus able to capture the process dynamics. [less ▲]

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See detailInforming a social practice theory framework with social-psychological factors for analyzing routinized energy consumption: A multivariate analysis of three practices
Hess, Ann-Kathrin; Samuel, Robin UL; Burger, Paul

in Energy Research & Social Science (2018), 46

A key factor contributing to the non-realization of energy efficiency potentials is the routinized way in which many energy consumption behaviors (ECBs) are performed. To analyze routinized ECBs, we draw ... [more ▼]

A key factor contributing to the non-realization of energy efficiency potentials is the routinized way in which many energy consumption behaviors (ECBs) are performed. To analyze routinized ECBs, we draw on social practice theory and psychological concepts and suggest a framework that considers individual, social, and material factors. Based on our proposed framework and employing multivariate regression analysis, we gain new insights into associated factors of routinized ECBs—particularly for washing and drying clothes and showering. Analyzing data from a survey conducted among Swiss households in 2016 (n=5015), we find that individual values, practice-specific wants, and materials explain variations in routinized ECB performance. Furthermore, socio-demographic predictors shed light on cultural and status differences associated with routinized ECBs. This paper contributes to understanding associated factors of routinized ECBs by bridging practice theory and psychology-based factors. [less ▲]

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See detailA risk-based approach towards infringement prevention on the internet: adopting the anti-money laundering framework to online platforms
Ullrich, Carsten UL

in International Journal of Law and Information Technology (2018)

This article suggests a new approach towards online service provider liability which relies on duty of care. It proposes a concrete compliance framework for online platforms, borrowed from risk regulation ... [more ▼]

This article suggests a new approach towards online service provider liability which relies on duty of care. It proposes a concrete compliance framework for online platforms, borrowed from risk regulation, and modelled on anti-money laundering (AML) obligations in the financial sector. First, the prohibition on obliging platforms to monitor content in a general manner under the E-Commerce Directive will be discussed. On the face of it this may clash with a standardized requirement to filter for infringing content. Subsequently, the regulatory choice for such a duty of care standard will be explored. It is argued that the largely self-regulatory proposals currently on the table may be ill fitted to achieve traction and accountability. Finally, a three-tier compliance framework, modelled on the AML system and using a risk-based approach, is proposed. The pitfalls of such a highly automated compliance solution, which enforces complex legal norms, will also be touched on. [less ▲]

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See detailFlows and mobilities in the Greater Region
Pigeron-Piroth, Isabelle UL

Conference given outside the academic context (2018)

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See detailThe Challenge of Situating Sacred Wind Music on the Example of Laurent Menager (1835-1902)
Duhr, Marlène UL

Scientific Conference (2018, July 20)

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See detailWind Music and Terminology. A Critical Review of an Immanent Phenomenon
Sagrillo, Damien UL

in Sagrillo, Damien (Ed.) Conference Guide (2018, July 20)

During the last decades of wind music research, a few publications focussed on terminology. Elmar Walter wrote a dissertation about Blas- und Bläsermusik. In his talk at Oberwölz, Raoul Camus stated: “A ... [more ▼]

During the last decades of wind music research, a few publications focussed on terminology. Elmar Walter wrote a dissertation about Blas- und Bläsermusik. In his talk at Oberwölz, Raoul Camus stated: “A band is a Band is Band”. However, he seemed to hesitate because he referred to Joseph Manfredo who, in his awarded dissertation, asked: “What is a Band?” In my lecture, I will bring this topic to the fore again and deal with the terminology used to designate a group of wind instruments, and I will come up with some suggestions for definitions. I will try to find an answer to questions such as: When is a band a symphonic band, or even a symphonic wind ensemble or “only” a community band? When I say: “I will try to find an answer”, I must admit that I cannot guarantee to find an acceptable one: Are these terms filled with a substance – what makes the difference? – or are they simply a grandiloquent absurdity? Do pretentious terms refer to “better” musicians or music? I will present my paper in English, but I will also deal with band designations in German, in French and my native language – Luxembourgish. [less ▲]

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See detailStochastic Optimum Energy Management for Advanced Transportation Network
Sajadi Alamdari, Seyed Amin UL; Voos, Holger UL; Darouach, Mohamed

in 15th IFAC Symposium on Control in Transportation Systems CTS 2018 (2018, July 19)

Smart and optimal energy consumption in electric vehicles has high potential to improve the limited cruising range on a single battery charge. The proposed concept is a semi-autonomous ecological advanced ... [more ▼]

Smart and optimal energy consumption in electric vehicles has high potential to improve the limited cruising range on a single battery charge. The proposed concept is a semi-autonomous ecological advanced driver assistance system which predictively plans for a safe and energy-efficient cruising velocity profile autonomously for battery electric vehicles. However, high entropy in transportation network leads to a challenging task to derive a computationally efficient and tractable model to predict the traffic flow. Stochastic optimal control has been developed to systematically find an optimal decision with the aim of performance improvement. However, most of the developed methods are not real-time algorithms. Moreover, they are mainly risk-neutral for safety-critical systems. This paper investigates on the real-time risk-sensitive nonlinear optimal control design subject to safety and ecological constraints. This system improves the efficiency of the transportation network at the microscopic level. Obtained results demonstrate the effectiveness of the proposed method in terms of states regulation and constraints satisfaction. [less ▲]

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See detail"Français de coeur parce que Luxembourgeois"
Scuto, Denis UL

Article for general public (2018)

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