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See detailThe Role of Tuition Fees in Foreign Education: Evidence from Ital
Beine, Michel UL; Delogu, Marco; Ragot, Lionel

in Journal of Economic Geography (2018)

This paper studies the determinants of international students’ mobility at the uni- versity level, focusing specifically on the role of tuition fees. We derive a gravity model from a Random Utility ... [more ▼]

This paper studies the determinants of international students’ mobility at the uni- versity level, focusing specifically on the role of tuition fees. We derive a gravity model from a Random Utility Maximization model of location choice for international stu- dents in the presence of capacity constraints of the hosting institutions. The last layer of the model is estimated using new data on student migration flows at the university level for Italy. We control for the potential endogeneity of tuition fees through a clas- sical IV approach based on the status of the university. We obtain evidence for a clear and negative effect of fees on international student mobility and confirm the positive impact of the quality of the education. The estimations also support the important role of additional destination-specific variables such as host capacity, the expected return of education and the cost of living in the vicinity of the university. [less ▲]

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See detailBack to the Moon: Legal Challenges for Future Lunar Exploration
Salmeri, Antonino UL

in 69th International Astronautical Congress 2018 (2018)

This paper addresses the main legal challenges related to future human exploration of the Moon, with the goal to show possible solutions. In order to do so, it first presents an overview of current lunar ... [more ▼]

This paper addresses the main legal challenges related to future human exploration of the Moon, with the goal to show possible solutions. In order to do so, it first presents an overview of current lunar exploration programs, arguing that public and private missions raise different challenges and thus require specific models. Following, it accordingly assesses possible legal solutions for the regulation of these programs. On the one hand, States’ exploration programs may be governed by a revised version of the Intergovernmental Agreement already concluded for the International Space Station. On the other hand, private activities could be better organized relying on Articles VI-IX OST as integrated by a new UNGA Resolution, ad hoc bilateral agreements and specific provisions in national space legislations. Finally, the paper concludes underlining the importance of international cooperation as the key to ensure the peaceful use and exploration of outer space. [less ▲]

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See detailLa mer comme sémiosphère
Roelens, Nathalie UL

in Espacialidades : Revisoes do espaço na literatura, pp. 119-145 (2018)

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See detailUtility-Based Kalman Filtering for real-time estimation of daily demand flows
Cantelmo, Guido UL; Qurashi, Moeid; Prakash, Arun et al

Scientific Conference (2018)

Time-dependent Origin-Destination (OD) demand flows are fundamental inputs for Dynamic Traffic Assignment (DTA) systems and real-time traffic management. This work introduces a novel state-space framework ... [more ▼]

Time-dependent Origin-Destination (OD) demand flows are fundamental inputs for Dynamic Traffic Assignment (DTA) systems and real-time traffic management. This work introduces a novel state-space framework to estimate these demand flows in an online context. Specifically, we propose to explicitly include trip-chaining behavior within the state-space formulation, which is solved using the well-established Kalman Filtering technique. While existing works already consider structural information and recursive behavior within the online demand estimation problem, this information has been always considered at the OD level. In this study, we introduce this structural information by explicitly representing trip-chaining within the estimation framework. The advantage is twofold. First, all trips belonging to the same tour can be jointly calibrated. Second, given the estimation during a certain time interval, a prediction of the structural deviation over the whole day can be obtained without the need to run additional simulations. The effectiveness of the proposed methodology is demonstrated first on a toy network and then on a large real-world network. Results show that the model improves the prediction performance with respect to a conventional Kalman Filtering approach. We also show that, on the basis of the estimation of the morning commute, the model can be used to predict the evening commute without need of running additional simulations. [less ▲]

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See detailA Survey of Petri Nets Slicing
Khan, Yasir Imtiaz; Konios, Alexandros; Guelfi, Nicolas UL

in ACM Computing Surveys (2018), 51(5), 109

Petri nets slicing is a technique that aims to improve the verification of systems modeled in Petri nets. Petri nets slicing was first developed to facilitate debugging but then used for the alleviation ... [more ▼]

Petri nets slicing is a technique that aims to improve the verification of systems modeled in Petri nets. Petri nets slicing was first developed to facilitate debugging but then used for the alleviation of the state space explosion problem for the model checking of Petri nets. In this article, different slicing techniques are studied along with their algorithms introducing: i) a classification of Petri nets slicing algorithms based on their construction methodology and objective (such as improving state space analysis or testing), ii) a qualitative and quantitative discussion and comparison of major differences such as accuracy and efficiency, iii) a syntactic unification of slicing algorithms that improve state space analysis for easy and clear understanding, and iv) applications of slicing for multiple perspectives. Furthermore, some recent improvements to slicing algorithms are presented, which can certainly reduce the slice size even for strongly connected nets. A noteworthy use of this survey is for the selection and improvement of slicing techniques for optimizing the verification of state event models. [less ▲]

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See detailHow to grasp historical media dispositifs in practice?
Fickers, Andreas UL

in Fickers, Andreas; Aasman, Susan; Wachelder, Joseph (Eds.) Materializing Memories. Dispositifs, Generations, Technologies (2018)

This chapter introduces the concept of experimental media archaeology and asks how hands-on experiments with old media technologies allow to grasp the meaning of past media practices.

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See detailInventar des Archivs der Stadt St. Vith, Streitsache „Emmelser Wald“ (1897-2008)
Sproten, Vitus UL; Herrebout, Els

Book published by Archives de l'État en Belgique (2018)

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See detail„Widerspruchsvolles Durch- und Gegeneinander“ Mediengeschichte in ländlichen Zwischenräumen – das Beispiel Eupen-Malmedy (1920–1940)
Sproten, Vitus UL

in Mahlerwein, Gunther; Zimmermann, Clemens; Maldener, Aline (Eds.) Landmedien. Kulturhistorische Perspektiven auf das Verhältnis von Medialität und Ruralität im 20. Jahrhundert (2018)

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See detailNational Education Reports in Selected European Countries.
Breit, Simone; Gurtner-Reinthaler, Saya; Haugberg, Tonje et al

Report (2018)

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See detailManifesto for a European research network into Problematic Usage of the Internet
Fineberg, Naomi A.; Demetrovics, Zsolt; Stein, Dan J. et al

in European Neuropsychopharmacology (2018), 28(11), 1232-1246

The Internet is now all-pervasive across much of the globe. While it has positive uses (e.g. prompt access to information, rapid news dissemination), many individuals develop Problematic Use of the ... [more ▼]

The Internet is now all-pervasive across much of the globe. While it has positive uses (e.g. prompt access to information, rapid news dissemination), many individuals develop Problematic Use of the Internet (PUI), an umbrella term incorporating a range of repetitive impairing behaviours. The Internet can act as a conduit for, and may contribute to, functionally impairing behaviours including excessive and compulsive video gaming, compulsive sexual behaviour, buying, gambling, streaming or social networks use. There is growing public and National health authority concern about the health and societal costs of PUI across the lifespan. Gaming Disorder is being considered for inclusion as a mental disorder in diagnostic classification systems, and was listed in the ICD-11 version released for consideration by Member States ( http://www.who.int/classifications/icd/revision/timeline/en/ ). More research is needed into disorder definitions, validation of clinical tools, prevalence, clinical parameters, brain-based biology, socio-health-economic impact, and empirically validated intervention and policy ap- proaches. Potential cultural differences in the magnitudes and natures of types and patterns of PUI need to be better understood, to inform optimal health policy and service development. To this end, the EU under Horizon 2020 has launched a new four-year European Cooperation in Science and Technology (COST) Action Programme (CA 16207), bringing together scientists and clinicians from across the fields of impulsive, compulsive, and addictive disorders, to advance networked interdisciplinary research into PUI across Europe and beyond, ultimately seeking to inform regulatory policies and clinical practice. This paper describes nine critical and achievable research priorities identified by the Network, needed in order to advance understanding of PUI, with a view towards identifying vulnerable individuals for early intervention. The network shall enable collaborative research networks, shared multinational databases, multicentre studies and joint publications . [less ▲]

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See detailSK-DSSy: how to integrate the YouTube platform in a cooperative decision support?
Torregrossa, Dario; Hansen, Joachim UL

Book published by Springer Science & Business Media B.V. - ICDSST 2018. Lecture Notes in Business Information Processing, vol 313. Springer, Cham (2018)

In wastewater treatment plants (WWTPs) domain, the decision support tools are nowadays necessary in order to efficiently process the large databases generated with on-line sensors. In this paper a ... [more ▼]

In wastewater treatment plants (WWTPs) domain, the decision support tools are nowadays necessary in order to efficiently process the large databases generated with on-line sensors. In this paper a cooperative decision support system (DSS) is presented. This DSS uses a KPI-based fuzzy logic engine to analyse the plant performance and identify the operational conditions that occur in the plants. Then, it associates the detected operational conditions with YouTube pages in which videos are uploaded to provide details and propose suggestions. The YouTube platform is then used to share and validate suggestions by means of the comment functions and the 'likes'. This approach is innovative, free of costs, and useful for plant managers that can rely on a user-friendly platform. [less ▲]

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See detailAdmisibilidad de la prueba transnacional en los procedimientos de la fiscalia europea
Allegrezza, Silvia UL; Mosna, Anna UL

in Bachmaier Winter, Lorena (Ed.) La Fiscalia Europea (2018)

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See detailPoetik des Rahmens
Dembeck, Till UL

in Simon, Ralf (Ed.) Grundthemen der Literaturwissenschaft: Poetik und Poetizität (2018)

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See detailFaut-Il Réformer Le Droit Luxembourgeois des Contrats?
Prüm, André UL

in Mélanges en l’honneur du professeur Claude Witz (2018)

Founded on the Code Napoléon, Luxembourg contract law has remained virtually unchanged over the last two centuries. The recent reform of the law of obligations enacted in France and the draft bill ... [more ▼]

Founded on the Code Napoléon, Luxembourg contract law has remained virtually unchanged over the last two centuries. The recent reform of the law of obligations enacted in France and the draft bill currently discussed in Belgium risk to deprive Luxembourg contract law of its reference model. The present paper explains the overall impacts of these reforms for the Grand-Duchy and concludes that it needs in turn to reflect on a modernization of its contract law. It presents the main options for such a project. [less ▲]

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See detailThe effect of workplace relocation on individuals’ activity travel behavior
Sprumont, Francois; Viti, Francesco UL

in Journal of Transport and Land Use (2018), 11(1),

On working days, homes and workplaces can be seen as anchor locations at the heart of daily mobility patterns, as well as being central to an employee’s activity pattern. In this study, we investigate how ... [more ▼]

On working days, homes and workplaces can be seen as anchor locations at the heart of daily mobility patterns, as well as being central to an employee’s activity pattern. In this study, we investigate how workplace relocation affects the entire daily activity-travel chain. While past research has shown that workplace decentralization is often associated with higher car use for the commuting trip, little is known about the effect on the whole activity travel pattern. Two waves of a two-week travel diary were completed by 43 employees of the University of Luxembourg: one before and one after the relocation of their office. Using descriptive statistics as well as standard deviational ellipses (SDE) theory combined with the results of a clustering analysis showed that workers’ activity spaces (represented by the standard deviational ellipses) were significantly modified due to the relocation of a single anchor activity location, i.e., their workplace. [less ▲]

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See detailThe microRNA-371~373 cluster represses colon cancer initiation and metastatic colonization by inhibiting the TGFBR2/ID1 signaling axis.
Ullmann, Pit UL; Rodriguez, Fabien UL; Schmitz, Martine UL et al

in Cancer research (2018)

The vast majority of colorectal cancer (CRC)-related deaths can be attributed to metastatic spreading of the disease. Therefore, deciphering molecular mechanisms of metastatic dissemination is a key ... [more ▼]

The vast majority of colorectal cancer (CRC)-related deaths can be attributed to metastatic spreading of the disease. Therefore, deciphering molecular mechanisms of metastatic dissemination is a key prerequisite to improve future treatment options. With this aim, we took advantage of different CRC cell lines and recently established primary cultures enriched in colon cancer stem cells (CSCs) - also known as tumor-initiating cells (TICs) - to identify genes and microRNAs (miRNAs) with regulatory functions in CRC progression. We show here that metastasis-derived TICs display increased capacity for self-renewal, transforming growth factor beta (TGF-beta) signaling activity, and reduced expression of the miR-371~373 cluster compared to non-metastatic cultures. TGF-beta receptor 2 (TGFBR2) and aldehyde dehydrogenase A1 (ALDH1A1) were identified as important target genes of the miR-371~373 cluster. In addition, TGFBR2 repression, either by direct knockdown or indirectly via overexpression of the entire miR-371~373 cluster, decreased tumor-initiating potential of TICs. We observed significantly reduced in vitro self-renewal activity as well as lowered tumor-initiation and metastatic outgrowth capacity in vivo following stable overexpression of the miR-371~373 cluster in different colon TIC cultures. Inhibitor of DNA binding 1 (ID1) was affected by both TGFBR2 and miR-371~373 cluster alterations. Functional sphere and tumor formation as well as metastatic dissemination assays validated the link between miR-371~373 and ID1. Altogether, our results establish the miR-371~373/TGFBR2/ID1 signaling axis as a novel regulatory mechanism of TIC self-renewal and metastatic colonization. [less ▲]

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See detailMehrsprachiges und interkulturelles Lesen
Dembeck, Till UL

in Parr, Rolf; Honold, Alexander (Eds.) Grundthemen der Literaturwissenschaft: Lesen (2018)

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See detailLuxembourg
Dumont, Patrick UL; Kies, Raphaël UL

in European Journal of Political Research (2018), 57

After one year of interruption that followed three years of elections and referendum,Luxembourgish voters were again invited to the polls, this time to select their localrepresentatives. The local ... [more ▼]

After one year of interruption that followed three years of elections and referendum,Luxembourgish voters were again invited to the polls, this time to select their localrepresentatives. The local elections confirmed the positive trend of the Christian SocialPeople’s Party (CSV), continued losses for Luxembourg’s Socialist Workers’ Party (LSAP)and a stabilization of the other parties. While the issue of identity and language was notat the centre of the local campaign, fears concerning the loss of language and identity dueto economic and population growth (essentially from resident foreigners and commuters)continued to haunt political debates throughout the year. These fears were fuelled by thenew movementWee 2050-Nee 2015that supports the protection of the Luxembourgishlanguage and identity, and the controversies surrounding the new nationality law thatsimplifies the access to the Luxembourgish nationality, the introduction of a bilingualeducation (French and Luxembourgish) in nurseries, and the governmental action plan topromote the Luxembourgish language.Finally,2017 was marked by the adoption of the long-awaited reform of the Council of State and important social reforms [less ▲]

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