Last 7 days     Results 61-80 of 230.   1 2 3 4 5 6 7 8 9   Spin structure of Nd-Fe-B-based textured nanocomposites:role of interface chemistryTitov, Ivan ; Michels, Andreas Scientific Conference (2017, July 02)Detailed reference viewed: 8 (2 UL) Testing the discrimination hypothesis for female self employment migrants in the UKConstantinidis, Christina ; Fletcher, Denise Elaine ; Joxhe, Majlinda in IAFFE (Ed.) Books of Abstracts (2017, July 01)We propose a comparative analysis of migrants in both sectors (employment and self-employment) exploring the gender earning discrimination hypothesis. Using individual micro data from the British ... [more ▼]We propose a comparative analysis of migrants in both sectors (employment and self-employment) exploring the gender earning discrimination hypothesis. Using individual micro data from the British Household Panel Survey (1991-2008), we estimate wage equations for employed and self-employed migrants and find that, contrary to our expectations, the average earnings gap in self-employment is almost double compared to the employment sector. This finding reveals that self-employment leads migrant women to an even more precarious and vulnerable position in terms of financial means and economic power. In addition, we explore the determinants of these gaps using the econometric procedure of the decomposition (the Blinder-Oaxaca) model. We find that the variables that explain the gender gap in the employment sector are mostly observable individual characteristics like education or migration duration, confirming the human capital theory, whereas in the self-employment sector, this gap is more due to unobservable individual characteristics. Through our work, we show that including the gender perspective into migration analysis has implications for policy makers enabling them to evaluate these processes from a more social (rather than individualistic) dimension. [less ▲]Detailed reference viewed: 6 (0 UL) Transnationalisation of Sports: A Middle class value across bordersVysotskaya, Volha ; Kerivel, AudePresentation (2017, July)Detailed reference viewed: 3 (0 UL) The role of humour in intimate intercultural relationshipsAleksic, Gabrijela in The 9th European IACPP Conference (2017, July)Humour is vital for social life. We explored the role of humour in intimate intercultural relationships by: (1) interviewing intercultural couples and (2) analysing the videos of international street ... [more ▼]Humour is vital for social life. We explored the role of humour in intimate intercultural relationships by: (1) interviewing intercultural couples and (2) analysing the videos of international street performances of a conflictual intercultural clown couple. The interviews involved 15 intercultural couples. The video analysis was based on one clown couple selected from an initial sample. Preliminary results supported the interdisciplinary theories explaining the relationships between: (1) humour and embarrassment and (2) humour and hatred. Humour and ridicule are main elements of embarrassment which is important for maintaining social order. The presence of an audience in embarrassing situations is necessary. ‘Laughing with’ or ‘laughing at’ was explored through three main types of embarrassing situations: faux pas, sticky situations and being the centre of attention. The third type was found to be the most common among intercultural couples, especially in situations of linguistic misunderstandings. Humour was the most used remedial strategy, along with apologies, excuses and justifications. Embarrassment was related to shame, the master-emotion appearing when interpersonal or group relations are broken. Shame could transform into rage and humour can provide tools for expressing it while also supporting the feelings of pleasure. Hatred was present in the forms of stereotypes against the partner’s culture through jokes. We discuss humour, embarrassment and hatred from micro to macro level to understand how they can protect the social order, find the pleasure in damaging the same and what we can do about it. [less ▲]Detailed reference viewed: 11 (2 UL) Tutoring and its effect on teachers.Weber, Jean-Marie ; Voynova, Ruzhena Scientific Conference (2017, July)Detailed reference viewed: 7 (1 UL) LMI-Based H_infty Nonlinear State Observer Design for Anaerobic Digestion ModelChaib Draa, Khadidja ; Voos, Holger ; Alma, Marouane et alin IEEE Mediterranean Conference on Control and Automation, Valletta 3-6 July 2017 (2017, July)This note deals with the design of an $H_{\infty}$ nonlinear state observer for the anaerobic digestion model. Positively, the designed observer is an unified one that can be used for different class of ... [more ▼]This note deals with the design of an $H_{\infty}$ nonlinear state observer for the anaerobic digestion model. Positively, the designed observer is an unified one that can be used for different class of systems, mainly linear systems, Linear Parameter Varying (LPV) systems with known and bounded parameters, and nonlinear Lipschitz systems. Applying the Lyapunov theory and theH¥ criterion, Linear Matrix Inequality (LMI) condition is synthesised and solved to obtain the designed observer gains. The novelty of our work consists in the relaxation of the synthesized LMI condition through the inclusion of additional decision variables. This was possible due to the use of a suitable reformulation of the Young’s inequality. Stability, effectiveness and potency of the theoretical results are confirmed by the simulation results. [less ▲]Detailed reference viewed: 4 (0 UL) An LMI-Based H_infty Discrete-Time Nonlinear State Observer Design for an Anaerobic Digestion ModelChaib Draa, Khadidja ; Voos, Holger in World Congress of the International Federation of Automatic Control, Toulouse 9-14 July 2017 (2017, July)This paper is devoted to the design of an H1 discrete-time nonlinear state observer for an anaerobic digestion model. Indeed, the designed observer can be used for di erent class of systems, mainly linear ... [more ▼]This paper is devoted to the design of an H1 discrete-time nonlinear state observer for an anaerobic digestion model. Indeed, the designed observer can be used for di erent class of systems, mainly linear systems, LPV systems with known and bounded parameters, and nonlinear Lipschitz systems. We use an LMI approach to guarantee the H1 asymptotic stability of the estimation error despite the disturbances a ecting the system dynamics and measurements. The synthesised LMI is relaxed due to the inclusion of additional decision variables which enhance its feasibility. This was possible due to the use of a suitable reformulation of the Young's inequality. Simulation results are given to show the robustness of the designed observer. [less ▲]Detailed reference viewed: 2 (0 UL) L' échange d' informations fiscales en droit de l' Union européennePantazatou, Aikaterini in L' Observateur de Bruxelles (2017), (109), Detailed reference viewed: 12 (2 UL) Solidarity [glossary]Chiocchetti, Paolo E-print/Working paper (2017)The principle of solidarity plays a key role in discussions of social, economic, and political issues. A polysemic notion, it may interrogate either individuals or public authorities. It often represents ... [more ▼]The principle of solidarity plays a key role in discussions of social, economic, and political issues. A polysemic notion, it may interrogate either individuals or public authorities. It often represents the counterpart of competition in the analysis and assessment of social norms and public policies. [less ▲]Detailed reference viewed: 5 (0 UL) Student-driven Inquiry-based Science Education in Luxembourg Primary School ContextsDombkowski-Wilmes, Sara Elizabeth Doctoral thesis (2017)This study examined the use of a student-driven inquiry-based science education instructional approach designed specifically to meet the contextualized needs of Luxembourg primary schools. The key issues ... [more ▼]This study examined the use of a student-driven inquiry-based science education instructional approach designed specifically to meet the contextualized needs of Luxembourg primary schools. The key issues, namely an increasing linguistically diverse student population and limited instructional time for science, were considered in the design of the instructional approach. Drawing on theories of dialogic inquiry, the instructional approach engages students in asking questions and designing investigations to build their science understanding. This interpretive qualitative study utilized a multi-perspective approach to analyse how teachers used the instructional approach in their classrooms and explored two overarching research questions, first, what instructional opportunities does Science Workshop, an inquiry-based student-driven science instructional approach, afford when used in Luxembourg primary classrooms? And second, what does analysis of interactions in these contexts reveal about inquiry-based science instruction in multilingual classrooms? Qualitative methodologies, specifically case studies of classroom implementation, were used to examine the use of the program teachers’ adaptations of the program in their classrooms. Bakhtinian notions of heteroglossia and dialogic pedagogies were used as lenses to examine the instructional opportunities afforded. Interaction analysis was used to examine instruction in a focal classroom when the inquiry-based approach was used. Analyses rooted in sociocultural theoretical frameworks of science and language learning revealed three key contributions toward the use of IBSE in Luxembourg primary schools. First, the key characteristics of teacher professional learning opportunities that supported teachers’ use of the program in Luxembourg, which included workshops, material support, and opportunities to share implementation cases were identified. Second, the ways in which ritualized instructional components afford students spaces to engage on micro-scales in building synchronous interactions during science investigations were revealed. Third, that the science notebooks can position students to engage in dialogic discussions surrounding science investigations was shown through detailed analysis. Taken together, these interrelated points contribute to an understanding of the use of student-driven instructional approaches in multilingual science classrooms in general, while revealing implications for the use of inquiry-based science instructional approaches in Luxembourg primary schools specifically. [less ▲]Detailed reference viewed: 11 (5 UL) The European Commission’s "Reflection Paper on Harnessing Globalisation"Chiocchetti, Paolo E-print/Working paper (2017)The new EC reflection paper on globalisation sets new accents, but contains no major departure from current policy orientations. It takes a clear stand for free trade, while attacking "unfair competition ... [more ▼]The new EC reflection paper on globalisation sets new accents, but contains no major departure from current policy orientations. It takes a clear stand for free trade, while attacking "unfair competition" and arguing for a "balanced, rules-based and progressive trade and investment agenda". Despite its insistence on a managed globalisation and a fair redistribution of its benefits, its proposals are unlikely to allay domestic anxieties and external criticism. [less ▲]Detailed reference viewed: 3 (0 UL) Development of questionnaires measuring the engagement and the motives related to TV series watchingFlayelle, Maèva ; Maurage, Pierre; Billieux, Joël et alPoster (2017, June)Detailed reference viewed: 16 (0 UL) Investigating Multiphase flow Behavior in Trickle Bed Reactors using eXtended Discrete Element Method (XDEM)Baniasadi, Maryam ; Peters, Bernhard Scientific Conference (2017, May 08)The existence of multiphase flows through packed bed of solid particles in broad spectrum of engineering disciplines such as chemical industries, petroleum engineering, wastewater treatment is undeniable ... [more ▼]The existence of multiphase flows through packed bed of solid particles in broad spectrum of engineering disciplines such as chemical industries, petroleum engineering, wastewater treatment is undeniable. One frequently used reactor of this type is a trickle bed reactor that usually contains particulate phase of which the interstitial space is filled with gas and liquid phases. Based on the direction of the fluid flow they can be classified as cocurrent downflow trickle bed reactors, counter-current trickle bed reactors and cocurrent upflow packed bubble reactors. In these kind of problems numerical simulations can help to gain a better process understanding. In the current distribution, a numerical method so called Extended Discrete Element Method (XDEM) was applied to model multiphase flow through packed bed of solid particles which has the ability to be coupled to Computational Fluid Dynamics (CFD) through interphase momentum transfer. In this coupled solver the fluid phases are treated by CFD while the position and orientation of the particles in each CFD cell and the porosity distribution through packed bed are provided by XDEM. In order to validate the code, two important hydrodynamic parameters such as pressure drop and liquid hold up were investigated and satisfactory agreement between predicted and experimental data was achieved. The model results demonstrate enormous effect of solid particles on the deviation of fluid phases while passing through packed bed by investigating parameters such as velocity and drag force. [less ▲]Detailed reference viewed: 12 (1 UL) The economic programme of Emmanuel MacronChiocchetti, Paolo E-print/Working paper (2017)The outsider Emmanuel Macron is the winner of the first round of the French presidential election. His economic programme is betting on a strategy of fiscal consolidation, tax cuts, targeted investments ... [more ▼]The outsider Emmanuel Macron is the winner of the first round of the French presidential election. His economic programme is betting on a strategy of fiscal consolidation, tax cuts, targeted investments, and further Europeanisation. Success crucially hinges on the outcome of the June legislative elections and on a favourable evolution of the global economic environment. [less ▲]Detailed reference viewed: 3 (0 UL) The Subjectivity Behind the NumbersVoynova, Ruzhena Scientific Conference (2017, May)Detailed reference viewed: 8 (1 UL) Psychoanalytic Approach. Methods and EthicsWeber, Jean-Marie ; Voynova, Ruzhena Scientific Conference (2017, May)Detailed reference viewed: 11 (1 UL) La répétition liée à la pulsion de mort dans le phénomène du décrochage scolaire. Etudes de casVoynova, Ruzhena ; Weber, Jean-Marie Scientific Conference (2017, May)Detailed reference viewed: 9 (1 UL) Le phénomène de répétition dans les situations de décrochage scolaire. Etudes de casVoynova, Ruzhena ; Weber, Jean-Marie Scientific Conference (2017, May)Detailed reference viewed: 8 (0 UL) LMI-Based Discrete-Time Nonlinear State Observer for an Anaerobic Digestion ModelChaib Draa, Khadidja ; Voos, Holger ; Alma, Marouane et alin IEEE International Conference on Systems and Control, Batna 7-9 May 2017 (2017, May)This paper deals with the design of a discrete time nonlinear observer for an anaerobic digestion process. The designed observer is devoted to a general class of systems, precisely linear systems, LPV ... [more ▼]This paper deals with the design of a discrete time nonlinear observer for an anaerobic digestion process. The designed observer is devoted to a general class of systems, precisely linear systems, LPV systems with known and bounded parameters, and nonlinear Lipschitz systems. In order to ensure stability of the estimation error, a new LMI condition is proposed. In this LMI, additional decision variables are included to enhance its feasibility. Indeed, this was possible due to the use of a suitable reformulation of the Young’s inequality. Numerical simulations using the investigated two-step anaerobic digestion model show the effectiveness of the proposed LMI methodology. [less ▲]Detailed reference viewed: 3 (0 UL) Glutathione Primes T Cell Metabolism for InflammationMak, Tak W.; Grusdat, Melanie; Duncan, Gordon S. et alin Immunity (2017), 46(4), 675-689Activated T cells produce reactive oxygen species (ROS), which trigger the antioxidative glutathione (GSH) response necessary to buffer rising ROS and prevent cellular damage. We report that GSH is ... [more ▼]Activated T cells produce reactive oxygen species (ROS), which trigger the antioxidative glutathione (GSH) response necessary to buffer rising ROS and prevent cellular damage. We report that GSH is essential for T cell effector functions through its regulation of metabolic activity. Conditional gene targeting of the catalytic subunit of glutamate cysteine ligase (Gclc) blocked GSH production specifically in murine T cells. Gclc-deficient T cells initially underwent normal activation but could not meet their increased energy and biosynthetic requirements. GSH deficiency compromised the activation of mammalian target of rapamycin-1 (mTOR) and expression of NFAT and Myc transcription factors, abrogating the energy utilization and Myc-dependent metabolic reprogramming that allows activated T cells to switch to glycolysis and glutaminolysis. In vivo, T-cell-specific ablation of murine Gclc prevented autoimmune disease but blocked antiviral defense. The antioxidative GSH pathway thus plays an unexpected role in metabolic integration and reprogramming during inflammatory T cell responses. [less ▲]Detailed reference viewed: 5 (0 UL)