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See detailLa disparition de la cause du contrat
Prüm, André UL

in Prüm, André; Ancel, Pascal (Eds.) Réformer le droit des contrats ? Analyse comparée autour du droit luxembourgeois (2020)

réflexions sur l'utilité des concept traditionnel de cause des contrats et discussion des arguments pour le maintien ou la suppression de la cause comme condition de validité des contrats

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See detailDispersion Interactions with Density-Functional Theory: Benchmarking Semiempirical and Interatomic Pairwise Corrected Density Functionals
Marom, Noa; Tkatchenko, Alexandre UL; Rossi, Mariana et al

in JOURNAL OF CHEMICAL THEORY AND COMPUTATION (2011), 7(12), 3944-3951

We present a comparative assessment of the accuracy of two different approaches for evaluating dispersion interactions: interatomic pairwise corrections and semiempirical meta-generalized-gradient ... [more ▼]

We present a comparative assessment of the accuracy of two different approaches for evaluating dispersion interactions: interatomic pairwise corrections and semiempirical meta-generalized-gradient-approximation (meta-GGA)-based functionals. This is achieved by employing conventional (semi)local and (screened-)hybrid functionals, as well as semiempirical hybrid and nonhybrid meta-GGA functionals of the M06 family, with and without interatomic pairwise Tkatchenko Scheffler corrections. All of those are tested against the benchmark S22 set of weakly bound systems a representative larger molecular complex (dimer of NiPc molecules), and a representative dispersively bound solid (hexagonal boron nitride). For the 522 database, we also compare our results with those obtained from the pairwise correction of Grimme (DFT-D3) and nonlocal Langreth Lundqvist furtctionals (vdW-DF1 and vdW-DF2). We find that the semiempirical kinetic-energy-density dependence introduced in the M06 functionals mimics some of the nonlocal correlation needed to describe dispersion. However, long-range contributions are still missing. Pair-wise interatomic corrections, applied to conventional semilocal or hybrid functionals, or to M06 functionals, provide for a satisfactory level of accuracy irrespectively of the underlying functional. Specifically, screened-hybrid functionals such as the.Heyd Scuseria Ernzerhof (HSE) approach reduce self-interaction errors in systems possessing both localized and delocalized orbitals and can be applied to both finite and extended systems. Therefore, they serve as a useful underlying functional for dispersion corrections. [less ▲]

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See detailDispersion of Beliefs in the Foreign Exchange Market
Wolff, Christian UL; Jongen, Ron; Willem F.C., Verschoor et al

E-print/Working paper (2009)

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See detailDispersion-corrected Moller-Plesset second-order perturbation theory
Tkatchenko, Alexandre UL; Distasio, Robert A. Jr.; Head-Gordon, Martin et al

in Journal of Chemical Physics (2009), 131

We show that the often unsatisfactory performance of Møller-Plesset second-order perturbation theory (MP2) for the dispersion interaction between closed-shell molecules can be rectified by adding a ... [more ▼]

We show that the often unsatisfactory performance of Møller-Plesset second-order perturbation theory (MP2) for the dispersion interaction between closed-shell molecules can be rectified by adding a correction Δ C n / Rn, to its long-range behavior. The dispersion-corrected MP2 (MP2+ΔvdW) results are in excellent agreement with the quantum chemistry "gold standard" [coupled cluster theory with single, double and perturbative triple excitations, CCSD(T)] for a range of systems bounded by hydrogen bonding, electrostatics and dispersion forces. The MP2+ΔvdW method is only mildly dependent on the short-range damping function and consistently outperforms state-of-the-art dispersion-corrected density-functional theory. © 2009 American Institute of Physics. [less ▲]

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See detailDisplacement and Resettlement: The Livelihoods of Resettlers and Hosts Displacement and Resettlement: The Livelihoods of Resettlers and Hosts
Wayessa, Gutu Olana UL

Doctoral thesis (2013)

The study focuses on population displacement and the livelihood implications of state-planned resettlement schemes that have been implemented in Western Oromia, Ethiopia. It addresses the livelihoods of ... [more ▼]

The study focuses on population displacement and the livelihood implications of state-planned resettlement schemes that have been implemented in Western Oromia, Ethiopia. It addresses the livelihoods of both the resettlers and the hosts. Although such resettlements have been implemented in the country since the 1960s, this study addresses those carried out since 2003. The broad objective of the study was to explore the dynamics of displacement and resettlement, and their impacts on the livelihoods of resettler and host populations. The specific objectives were: (1) to assess the policies and practices of the resettlement program carried out during the tenure of the current government; (2) to analyze the livelihood outcomes of the resettlements for resettlers and hosts in terms of changes in access to livelihood resources and social services; and (3) to examine resettlers’ and hosts’ perceptions of and attitudes towards the resettlement program. The theory of impoverishment risks and livelihood reconstruction (IRLR), the sustainable livelihood framework (SLF), and political ecology constitute the pillars of the theoretical framework. Primary data were collected in 2009 through a survey of 630 households in eight resettlement sites, and 68 thematic (group and individual) interviews in 13 resettlement sites. Several interviews were also held with government officials. Households were selected for the survey through stratified random sampling, whereas informants were selected for the interviews purposively. The primary data were complemented with relevant secondary data. The study is interdisciplinary, and combines both qualitative and quantitative methods through a concurrent mixed-methods design. Qualitative methods were used to address how and why questions through thematic analysis of the interviews and policy documents, thereby illuminating the substantive significance of the issues at stake. Quantitative methods were employed to quantify changes and establish the statistical significance of variables of interest. The quantitative methods used include descriptive statistics, such as percentages, means and cross-tabulations, and inferential statistics, such as logistic regression, mean comparisons using non-parametric tests, factor analysis, Chi-square tests, and loglinear analysis. The complementary relation between the two methods has proved useful in understanding and explaining the processes and the outcomes of the resettlement scheme. The research illuminates the causes, the processes, and the outcomes of the current resettlement program in particular, and critically analyzes the assumptions underlying the resettlement policies of the current and the previous regimes in general. Multiple causes and assumptions underlay the resettlement scheme, most notably land and rainfall shortages in resettlers’ areas of origin, and the government’s claim of land abundance. This last assumption has been persistently made by regime after regime, despite empirical counter-evidence, as also shown in this study. By revealing that the scheme resulted in the displacement of the host population to make way for resettlement, that the resettlers were given less land than promised, and that the relocation led to serious conflicts and disputes over land between resettlers and hosts, the study challenges the state’s supposition and rhetoric of “ample land.” The evidence also illuminates the relocation’s glaring lack of inclusiveness of both resettlers and hosts, despite the benign principles of “voluntarism” and “consultation.” The outcomes were multiple, leaving some better-off, others worse-off, and still others with no noticeable livelihood deterioration or improvement. In cases where old problems were alleviated, new ones emerged in a context of little plan and capacity to meet contingencies. This calls into question government propagation of generalized “success” in the resettlement scheme. Although little is known about the sustainability of the improved outcomes for some resettlers in some resettlement sites, the evidence from this study also counteracts the depiction of the scheme as a general “failure.” The findings suggest that the relative importance of the risks experienced by the resettlers and the hosts varied between the two population groups, and among different resettlement sites. The resettlement sites were widely differentiated in terms of biophysical factors, notably soil fertility and the availability of grazing land. This has serious implications for the resettlers and the hosts as their livelihoods are almost entirely based on agricultural activities. Moreover, historical issues, wider socio-political structures, physical infrastructure, and resettler-host relations are crucial for the understanding of how people’s access to livelihood resources and social services is shaped. However, resettler-host relations should be seen in a broader context of state-society relations, as the state is a key actor in planning and implementing the resettlement programs. An important policy lesson from this study is that when one focuses on certain livelihood aspects, one also needs to be aware that other potential livelihood components not evident today may become vital in the future. This awareness should motivate adaptive planning and management to meet contingencies in a way that reflects the multifaceted nature of livelihoods. [less ▲]

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See detailDisplacement based polytopal elements a strain smoothing and scaled boundary approach
Bordas, Stéphane UL; Natarajan, Sundararajan

Scientific Conference (2019, May 03)

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See detailDisplacements of the Earth's surface due to atmospheric loading: Effects on Gravity and Baseline Measurements
van Dam, Tonie UL; Wahr, John

in Journal of Geophysical Research (1987), 92

Atmospheric mass loads and deforms the Earth's crust. By performing a convolution sum between daily global barometric pressure data and mass loading Green's functions, we estimate the time dependent ... [more ▼]

Atmospheric mass loads and deforms the Earth's crust. By performing a convolution sum between daily global barometric pressure data and mass loading Green's functions, we estimate the time dependent effects of atmospheric loading, including those associated with short-term synoptic storms, on surface point positioning measurements and surface gravity observations. We calculate the response of both an oceanless Earth and an Earth with an inverted barometer ocean. Peak to peak vertical displacements are frequently 15-20 mm with accompanying gravity perturbations of 3-6 microgal. Baseline changes can be as large as 20 mm or more. The perturbations are largest at higher latitudes and during winter months. These amplitudes are consistent with the results f Rabbel and Zschau (1985) who modeled synoptic pressure disturbances as Gaussian functions of radius about a central point. Deformation can be adequately computes using real pressure data from points within about 1000 km of the station. Knowledge of local pressure alone, is not sufficient. Rabbel and Zschau's hypothesized corrections for these displacements, which use local pressure and regionally averaged pressure, prove accurate at points well inland but are, in general, inadequate within a few hundred kilometers of the coast. [less ▲]

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See detailDispositifs de formation hybrides : quels effets sur le développement professionnel des enseignants ?
Charlier, B; Lameul, G; Peltier, C et al

in Actes du Congrès 2012 de l’Association internationale de pédagogie universitaire (2012)

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See detailDispositifs hybrides, nouvelle perspective pour une pédagogie renouvelée de l’enseignement supérieur
Deschryver, N; Charlier, B; Borruat, S et al

Report (2012)

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See detailDispositifs numériques : régimes d'interaction et de croyance
Treleani, Matteo UL

in Nouveaux Actes Sémiotiques (2014)

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See detailDisposition Effect, Expectations and Behavior: Essays in Experimental Finance
Carlé, Tim Alexander UL

Doctoral thesis (2016)

This thesis indicates future price expectations and past returns as major determinants for trading decisions in experimental asset markets. Both determinants persist independently of the market ... [more ▼]

This thesis indicates future price expectations and past returns as major determinants for trading decisions in experimental asset markets. Both determinants persist independently of the market institutions continuous double auction market or once per period closing call auction market. Investor subjects are shown to submit more market sell orders after positive returns than after negative returns. They sell more assets with a past positive return, especially when this return is higher than the market return. Expectations about a positive return also lead to more sales of assets with past positive returns. Those investor subjects who have high price expectations buy more frequently and submit higher bids and asks, and those who hold low price expectations sell more frequently and submit lower bids and asks, than average. Future price expectations are adapted based on market outcome when investors receive feedback about market prices. The results do not reveal a significant relationship between transaction volume and the heterogeneity of price expectations, rather they support a positive relationship between the heterogeneity of price expectations and prices. Heterogeneity in price expectations decreases with experience, but markets are not able to homogenize expectations to reach a no-trade equilibrium. [less ▲]

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See detailDispositional essentialism and the grounding of natural modality
Jaag, Siegfried UL

in Philosopher's Imprint (2014)

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See detailDispositions for collaborative problem solving.
Scalise, Kathleen; Mustafic, Maida UL; Greiff, Samuel UL

in Kuger, Susanne; Klieme, Eckhard; Jude, Nina (Eds.) et al Assessing context of learning world-wide (in press)

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See detailLas disputas sobre la educación: los debates mediaticos y el ambito publico en Luxemburgo
Lenz, Thomas UL

in Tröhler, Daniel; Lenz, Thomas (Eds.) Trayectorias del desarrollo de los sistemas educativos modernos: Entre lo nacional y lo global (2015)

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See detailDispute prevention, Dispute Settlement and Implementation Facilitation in International Water Law: the Added Value of the Establishment of an Implementation Mechanism under the Water Convention
Contartese, Cristina UL; Tanzi, Attila

in Tanzi, A.; McIntyre, O.; Kolliopoulos, A. (Eds.) et al The UNECE Convention on the Protection and Use of Transboundary Watercourses and International Lakes: Its Contribution to International Water Cooperation (2015)

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See detailDispute Resolution in Space
Hofmann, Mahulena UL; Blount, Percy UL

in Max Planck Encyclopedia of International Procedural Law (2020)

Detailed reference viewed: 50 (2 UL)