Results 81-100 of 417.
Bookmark and Share    
Peer Reviewed
See detailComment assurer la qualité de l’évaluation par les pairs des propositions de communication dans le cadre d’un colloque scientifique ?
Milmeister, Marianne UL; Weis, Christiane UL; Dierendonck, Christophe UL

Scientific Conference (2019, January 10)

L’évaluation par les pairs joue un rôle important dans le monde universitaire et est souvent considérée comme le garant de la qualité scientifique. En même temps, les biais qui existent pour ce type ... [more ▼]

L’évaluation par les pairs joue un rôle important dans le monde universitaire et est souvent considérée comme le garant de la qualité scientifique. En même temps, les biais qui existent pour ce type d’évaluation sont multiples (partialité des évaluateurs, divergence de jugement entre évaluateurs, etc.) et bien documentés dans la littérature. Dans le cadre d’un colloque que nous avons organisé en 2018, nous avons mené une analyse exploratoire sur la base de données des évaluations réalisées par les pairs. Le but était d’avoir une idée de la qualité de l’évaluation par les pairs, de voir dans quelle mesure on retrouve les biais relevés par la littérature scientifique et, enfin, de définir des pistes qui pourraient contribuer à améliorer la qualité de ce processus. Dans le cas de notre colloque, l’évaluation par les pairs s’est faite via une plateforme en ligne. Chaque proposition de communication était évaluée de manière anonyme par deux personnes et sur base de neuf critères pour lesquels les évaluateurs pouvaient choisir entre quatre modalités d’appréciation : très faible, faible, bon, très bon. Ensuite, l’évaluateur devait donner sa recommandation pour la contribution analysée : acceptation, acceptation sous réserve d’ajustements ou refus. Une première analyse des données montre notamment qu’il existe des différences plus ou moins importantes tant entre les jugements des évaluateurs qu’entre les décisions d’un même évaluateur. Les résultats détaillés de nos analyses seront présentés lors du colloque et des pistes d’amélioration discutées. [less ▲]

Detailed reference viewed: 127 (3 UL)
Full Text
See detailLuxembourg
Covolo, Valentina UL

in Ruggeri, Stefano; Quattrocolo, Serena (Eds.) Personal Participation in Criminal Proceedings. A Comparative Study of Participatory Safeguards and in absentia Trials in Europe (2019)

In the last decade, Luxembourg law governing in absentia proceedings was subject to legislative reforms intended to enhance the rights of suspects and accused persons. In particular, the amendments ... [more ▼]

In the last decade, Luxembourg law governing in absentia proceedings was subject to legislative reforms intended to enhance the rights of suspects and accused persons. In particular, the amendments adopted in 2008 and 2017 aimed to make national criminal procedure compliant with the ECtHR case law and the ABC Directives. Against this background, the present contribution aims to analyse legal framework governing in absentia and inaudito reo proceedings in Luxembourg. [less ▲]

Detailed reference viewed: 59 (12 UL)
Peer Reviewed
See detailGender differences with regard to physical activity motivation and behavior in physical education and leisure time
Hutmacher, Djenna UL; Eckelt, Melanie UL; Bund, Andreas UL et al

Scientific Conference (2019, January)

Objectives: Given a widespread continuous decrease in children’s and adoles-cents’ physical activity (PA), the potential of physical education (PE) in promoting young people’s PA motivation and behavior ... [more ▼]

Objectives: Given a widespread continuous decrease in children’s and adoles-cents’ physical activity (PA), the potential of physical education (PE) in promoting young people’s PA motivation and behavior has become a key issue in research. Based on the self-determination theory (SDT) of Deci and Ryan (1985), the present study aimed to ex-amine gender differences with regard to PA motivation and behavior during PE and lei-sure time (LT). Previously, girls were found to be more self-determined than boys (Wil-liams & Deci, 1996), but showed lower self-reported PA and were meeting the PA guide-lines of the WHO to a lesser extent (Trost et al., 2002). Method: 244 students (139 girls and 125 boys) from 11 to 21 years participated in the study. PA motivation was assessed via a digital questionnaire containing the scales need support (Standage, Duda and Ntoumanis, 2005), basic needs (BPNES; Vlachopou-los, Ntoumanis & Smith, 2010), external and intrinsic motivation in PE (PLOC-R; Vla-chopoulos et al., 2011) and in LT (BREQ-II; Markland & Tobin, 2004). PA behavior was measured through a self-report questionnaire (Schmidt, Will, Henn, Reimers & Woll, 2016). Additionally, 76 students (38 girls and 38 boys) wore an accelerometer (ActiGraph GT3X-BT) over seven consecutive days to measure PA behavior objectively, too. Results: With regard to PA motivation, girls reported a lower fulfillment in the basic need of competence during PE and scored higher in the external motivation during PE and LT than boys. In contrast, boys reported higher rates of intrinsic motivation during PE and LT. Concerning PA behavior, boys showed higher PA than girls for self-reported and objectively measured PA in PE and LT. Independently of gender, higher levels of intrinsic motivation were associated with increased self-reported PA. Discussion: In conflict with previous findings, girls reported a lower intrinsic motiva-tion in PA than boys. As girls simultaneously show lower self-reported and objectively measured PA, future intervention programs should focus on strengthening the more in-ternally driven behavior of girls in order to foster regular PA. Key Reference: Deci, E.L. & Ran, R.M. (1985). Intrinsic motivation and self-determination in human behav-ior. New York: Plenum Press. [less ▲]

Detailed reference viewed: 260 (25 UL)
Peer Reviewed
See detailLa monstruosité maternelle dans l’œuvre d’Anne Hébert
Barthelmebs-Raguin, Hélène UL

Scientific Conference (2019)

Detailed reference viewed: 17 (1 UL)
Full Text
Peer Reviewed
See detailMicrostructural-defect-induced Dzyaloshinskii-Moriya interaction
Michels, Andreas UL; Mettus, Denis; Titov, Ivan UL et al

in Physical Review. B, Condensed Matter (2019), 99

Detailed reference viewed: 153 (23 UL)
Full Text
Peer Reviewed
See detailChapter 11 and the Level Playing Field: Should Chapter 11 be Considered as a Subsidy?
Mantin, Benny UL; Bock, Sebastian; Forsyth, Peter et al

in Journal of Air Transport Management (2019), 74

This paper assesses whether Chapter 11 is a form of subsidy for US airlines. US airlines have used Chapter 11 to restructure their operations. This has been criticized as a subsidy by major non US ... [more ▼]

This paper assesses whether Chapter 11 is a form of subsidy for US airlines. US airlines have used Chapter 11 to restructure their operations. This has been criticized as a subsidy by major non US airlines and governments for a long time and recently, in the “level playing field” debate. Applying legal and economic perspectives of subsidy, we examine the different opportunities of Chapter 11 to reduce airlines’ costs. It is argued that most of the forms available, such as the modification of collective bargaining, do not constitute a subsidy. Only the termination of pension plans might involve a subsidy, but only using a legal definition of doubtful relevance since there is normally no use of public funds. [less ▲]

Detailed reference viewed: 80 (1 UL)
See detailValers Larve : Imitatio, Anagrammatik und die Macht der Philologie in Gotthold Ephraim Lessings 'Der junge Gelehrte'
Busch, Christopher UL

in Ichtexte : Beiträge zur Philologie des Individuellen (2019)

Detailed reference viewed: 73 (0 UL)
Full Text
Peer Reviewed
See detailTranscriptome profiling data reveals Ubiquitin-Specific Peptidase 9 knockdown effects
Glaab, Enrico UL; Antony, Paul UL; Köglsberger, Sandra et al

in Data in Brief (2019), 25(1), 104130

Ubiquitin specific peptidase 9 (USP9) is a deubiquitinase encoded by a sex-linked gene with a Y-chromosomal form (USP9Y) and an X-chromosomal form (USP9X) that escapes X-inactivation. Since USP9 is a key ... [more ▼]

Ubiquitin specific peptidase 9 (USP9) is a deubiquitinase encoded by a sex-linked gene with a Y-chromosomal form (USP9Y) and an X-chromosomal form (USP9X) that escapes X-inactivation. Since USP9 is a key regulatory gene with sex-linked expression in the human brain, the gene may be of interest for researchers studying molecular gender differences and ubiquitin signaling in the brain. To assess the downstream effects of knocking down USP9X and USP9Y on a transcriptome-wide scale, we have conducted microarray profiling experiments using the human DU145 prostate cancer cell culture model, after confirming the robust expression of both USP9X and USP9Y in this model. By designing shRNA constructs for the specific knockdown of USP9X and the joint knockdown of USP9X and USP9Y, we have compared gene expression changes in both knockdowns to control conditions to infer potential shared and X- or Y-form specific alterations. Here, we provide details of the corresponding microarray profiling data, which has been deposited in the Gene Expression Omnibus database (GEO series accession number GSE79376). A biological interpretation of the data in the context of a potential involvement of USP9 in Alzheimer’s disease has previously been presented in Köglsberger et al. (2016). To facilitate the re-use and re-analysis of the data for other applications, e.g. the study of ubiquitin signaling and protein turnover control, and the regulation of molecular gender differences in the human brain and brain-related disorders, we provide a more in-depth discussion of the data properties, specifications and possible use cases. [less ▲]

Detailed reference viewed: 123 (3 UL)
Full Text
Peer Reviewed
See detailSimulation-based Optimisation Of Selective Laser Sintering/Melting Process
Kabore, Brice Wendlassida UL; Peters, Bernhard UL

in Euro PM2019 Congress Proceedings (2019)

In order to adapt Selective Laser Sintering (SLS) and Melting (SLM) to final products and volume production, many scientists have turned to statistical analysis for quality and process stability. Most of ... [more ▼]

In order to adapt Selective Laser Sintering (SLS) and Melting (SLM) to final products and volume production, many scientists have turned to statistical analysis for quality and process stability. Most of which are based on extensive experiments aiming at finding statistical correlations between input parameters such as layer thickness, orientation, scan speed, powder bed temperature, laser power... and resulting strength and residual stress of the manufactured part. However, the rise of computer simulation based on mathematical models allows predictions at a much lower cost. Mathematical modelling of SLS/SLM involves molecular level thermodynamics and thermo-mechanical behaviour of the powder material. In this study, we employ the newly developed Extended Discrete Element Model to reproduce the SLS process including the mechanisms of sintering and the evolution of fracture properties and self-supporting ability. Results show that such microscale model offers high precision and flexibility for finding optimal process parameters. [less ▲]

Detailed reference viewed: 48 (12 UL)
Full Text
Peer Reviewed
See detailKnow Your Enemies and Know Yourself in the Real-Time Bidding Function Optimisation
Du, Manxing UL; Cowen-Rivers, Alexander I.; Wen, Ying et al

in Proceedings of the 19th IEEE International Conference on Data Mining Workshops (ICDMW 2019) (2019)

Detailed reference viewed: 355 (1 UL)
See detailIdentification of optimal process parameters in selective laser sintering
Kabore, Brice Wendlassida UL; Estupinan Donoso, Alvaro Antonio UL; Peters, Bernhard UL et al

Scientific Conference (2019)

Selective Laser Sintering (SLS) is an efficient method for manufacturing complex geometries with high strength and durability. The SLS process subjects a powder bed to thermal cycles allowing theparticles ... [more ▼]

Selective Laser Sintering (SLS) is an efficient method for manufacturing complex geometries with high strength and durability. The SLS process subjects a powder bed to thermal cycles allowing theparticles to coalesce into a solid part without being completely melted. The thermal cycles along withthe thermo-mechanical properties of the powder dictate the properties of the manufactured part.Choosing optimal parameters that lead to functional parts with the desired stiffness, density andstrength requires extensive testing. Microscales models such that Molecular dynamics and DiscreteParticles offer great flexibilities and capacity to reproduce the SLS process from the physical point ofview [1].This study presents a multi-physical model based on the Extended Discrete Element Method forsimulating the thermodynamics and thermo-mechanics that take place in the SLS process as well asthe microstructure evolution of the part. A thermo-viscoelastic constitutive model for discreteparticles is coupled with heat transfer, sintering and fracture to predict.A genetic algorithm is employed to identify optimal process parameters, namely laser power,scanning speed, preheating temperature and layer thickness in an automated iterative process. Theseparameters are identified so that the density and strength of the cooled part meet the target values. [less ▲]

Detailed reference viewed: 77 (4 UL)
See detailThe Organised Crime-Terrorism Nexus: How to Address the Issue of ISIS Benefitting from Lucrative Criminal Activities?
Ligeti, Katalin UL; Lassalle, Maxime

in Roksandić Vidlička, Sunčana; Engelhart, Marc (Eds.) Dealing with Terrorism. Empirical and Normative Challenges of Fighting the Islamic State (2019)

Detailed reference viewed: 74 (5 UL)
Peer Reviewed
See detailA Critical Co/Autoethnographic Exploration of Self: Becoming Science Education Researchers in Diverse Cultural and Linguistic Landscapes
Park, Jennifer; Wilmes, Sara UL

in Bazzul, Jesse; Siry, Christina (Eds.) Critical voices in science education research: Narratives of academic journeys (2019)

This chapter illustrates the process of collaborative autoethnography (co-autoethnography) we used to construct space, in order to critically explore ourselves, and the contexts we study. Through a co ... [more ▼]

This chapter illustrates the process of collaborative autoethnography (co-autoethnography) we used to construct space, in order to critically explore ourselves, and the contexts we study. Through a co-autoethnographic process, we aimed to better understand our positioning in our lived experiences and to generate an understanding of how reflective critical research approaches could transform us, as well as the communities in which we were immersed. In this chapter, we share the process of our collective analysis of autoethnographic narratives (Coia L, Taylor M, Co/autoethnography: Exploring our teaching selves collaboratively. In L. Fitzgerald, M. Heston, D. Tidwell (Eds.), Research methods for the self-study of practice (pp. 3–16). Netherlands: Springer, 2009), which stemmed from our experiences living and conducting education research in multilingual and multicultural contexts. Our ethnographic method of data collection, analysis, and interpretation was generated from our journeys as researchers – moving to, living, and conducting research in culturally and linguistically diverse (CLD) environments. We share this process, and some lessons we learned, with the hope that other researchers may find co-autoethnography a cathartic methodology to explore and challenge their own perspectives relative to cultural and linguistic diversity in their lives and in their research. [less ▲]

Detailed reference viewed: 113 (17 UL)
Full Text
Peer Reviewed
See detailLe sens de la lecture
Roelens, Nathalie UL

in La Lecture littéraire dans tous ses étags (2019)

Detailed reference viewed: 40 (2 UL)
Full Text
Peer Reviewed
See detailScreening Powers in Investment Arbitration: Questions of Legal Change and Legitimacy
Radović, Relja UL

in Baetens, Freya (Ed.) The Legitimacy of Unseen Actors in International Adjudication (2019)

Screening powers of arbitral institutions over requests initiating investment arbitrations are often justified by the need to prevent embarrassment of states and to avoid unnecessary costs. This Chapter ... [more ▼]

Screening powers of arbitral institutions over requests initiating investment arbitrations are often justified by the need to prevent embarrassment of states and to avoid unnecessary costs. This Chapter examines possible effects of such powers, particularly on the arbitral development of the jurisdictional standards governing investment arbitration. Can administrative organs filter the demands for legal change that will be heard before tribunals, and if so, does this diminish the legitimacy of their screening powers? It is argued that screening powers offer possibilities of setting arbitrators’ agenda in terms of which demands for legal change will be considered. This could affect their legitimacy, but it does not mean that screening powers have completely lost their justification. It is suggested that such powers must be exercised with an extreme level of diligence, requiring an almost complete elimination of legal considerations, in order to safeguard their legitimacy. [less ▲]

Detailed reference viewed: 38 (3 UL)