Browse ORBi

- What it is and what it isn't
- Green Road / Gold Road?
- Ready to Publish. Now What?
- How can I support the OA movement?
- Where can I learn more?

ORBi

Wege aus dem Käfigdilemma. Das Luxemburger Wohnungsproblem, ein Dauerbrenner Hesse, Markus ; Christmann, Nathalie Article for general public (2016) Detailed reference viewed: 131 (10 UL)Wege zu einer Nachbarsprachen-/Grenz(raum)didaktik Ehrhart, Sabine ; ; et al in Romanistik und Angewandte Sprachwissenschaft (in press), 5 Detailed reference viewed: 89 (5 UL)Wege zur Ernährungsdemokratie. Rückblick auf den 2. Vernetzungskongress der Ernährungsräte in Frankfurt. Reckinger, Rachel ; Article for general public (2019) Face à la mondialisation et l’intégration verticale des maillons de la chaîne alimentaire aux mains des géants multinationaux de l’industrie agroalimentaire, des initiatives alternatives se développent ... [more ▼] Face à la mondialisation et l’intégration verticale des maillons de la chaîne alimentaire aux mains des géants multinationaux de l’industrie agroalimentaire, des initiatives alternatives se développent pour relocaliser et transformer la gouvernance de nos systèmes alimentaires. Au cœur de ce mouvement, on retrouve l’émergence de Conseils de Politique Alimentaire (en anglais : Food Policy Council). Il s’agit d’organes et de plateformes multi-acteurs qui ont pour objectif d’identifier et de proposer des solutions innovantes et transdisciplinaires en vue d’améliorer les systèmes alimentaires à l’échelle territoriale, en s’assurant qu’ils soient plus durables du point de vue environnemental et plus justes du point de vue social. Le Conseil alimentaire intègre des représentants des différents secteurs tout au long de la chaîne alimentaire (production, transformation, distribution, consommation et recyclage), mais également des acteurs de la gouvernance du système alimentaire (politique, administration, éducation, société civile, recherche). En Allemagne, ces initiatives foisonnent depuis que le premier Cpnseil de politique alimentaire ait été créé en 2016 à Cologne. Le 2ème congrès des initiatives germanophones, à Frankfort fin novembre 2018, a permis une meilleure compréhension de cet instrument participatif de promotion de la souveraineté alimentaire et du droit à l’alimentation et à la nutrition. Si vous voulez en savoir plus, merci de nous contacter : norry@cell.lu et rachel.reckinger@uni.lu [less ▲] Detailed reference viewed: 107 (15 UL)Wege zur Menschheit. Zur Diskussion von Valladodid. Zwischen Las Casas und Sepulvéda Sosoe, Lukas in Kaufmann, Matthias; Schnepf, Robert (Eds.) Politische Metaphyisik (2005) Detailed reference viewed: 24 (0 UL)Wege zur Sozialen Marktwirtschaft – Die Entwicklung ordnungspolitischer Konzeptionen in Deutschland vor der Währungsreform Klump, Rainer in Streissler, E. W. (Ed.) Studien zur Entwicklung der ökonomischen Theorie XVI: Die Umsetzung wirtschaftspolitischer Grundkonzeptionen in die kontinentaleuropäische Praxis des 19. und 20. Jahrhunderts (1997) Detailed reference viewed: 50 (0 UL)Wege zur vinophilen Kennerschaft. Die Verschränkung von Normen und deren Aneignungen beim Weinkonsum Reckinger, Rachel in Mitteilungen. (2013), (N° 20), 18-22 Detailed reference viewed: 39 (1 UL)Wéi ensteet d`Zuel 10 an eisem Kapp? Schiltz, Christine Conference given outside the academic context (2013) Detailed reference viewed: 34 (2 UL)Wéi funktionéiert Méisproochegkeet? Ehrhart, Sabine Conference given outside the academic context (2017) Detailed reference viewed: 33 (6 UL)Weight Loss Aassociated With Socioeconomic Status in Patients With Angina Pectoris, 5 Yeras After and Angiography ; Baumann, Michèle in Cardiology (2015), (132 (104)), 60 The aim of the study is to assess the association between weight loss and socioeconomic status (SES) in patients with cardiovascular disease (CVD) such as angina pectoris. Method: In 2013-2014, 1,873 ... [more ▼] The aim of the study is to assess the association between weight loss and socioeconomic status (SES) in patients with cardiovascular disease (CVD) such as angina pectoris. Method: In 2013-2014, 1,873 patients out of 4,391 that had undergone an angiography in 2008- 2009 participated in a follow-up study. Among these patients, 457 suffered from angina pectoris and were obese or overweight at baseline. A self-administered questionnaire was completed. Moderate weight loss was defined as the loss of 5%-10%, severe weigh loss as more than 10% of baseline weight. Household-income was used as proxy for SES. Logistic regression was applied to assess the association between weight loss and SES. Results: During the reference period, 28% of the participants lost weight. A moderate weight loss was higher in patients with a household income between 3000€ and 4500€ per month (OR: 2.3; CI 95%: 1.0-5.2) and higher than 4500€ per month (OR: 3.0; CI 95%: 1.3-7.2) compared to the lowest income group (less than 3000€ per month). A severe weight loss was not associated with income. However, a severe weight loss was higher for retired patients (OR: 4.3; CI 95%: 1.1- 17.0) compared to non-retired. Conclusion: The potential reduction of health inequality by an elimination of social inequalities in weight loss among patients with angina pectoris might be substantial. Moderate weight loss in overweight patients with angina pectoris at baseline could be associated with household income. Intervention strategies in secondary prevention should address these social inequalities in order to support equity in health. [less ▲] Detailed reference viewed: 45 (5 UL)Weight loss associated with socioeconomic status in patients with angina pectoris, 5 years after an angiography ; Baumann, Michèle in Cardiology (2015), (132 (suppl 1)), 60 The aim of the study is to assess the association between weight loss and socioeconomic status (SES) in patients with cardiovascular disease (CVD) such as angina pectoris. Method:In 2013-2014, 1,873 ... [more ▼] The aim of the study is to assess the association between weight loss and socioeconomic status (SES) in patients with cardiovascular disease (CVD) such as angina pectoris. Method:In 2013-2014, 1,873 patients out of 4,391 that had undergone an angiography in 2008 -2009 participated in a follow-up study. Among these patients, 457 suffered from angina pectoris and were obese or overweight at baseline. A self-administered questionnaire was completed. Moderate weight loss was defined as the loss of 5%-10%, severe weigh loss as more than 10 % of baseline weight. Household-income was used as proxy for SES. Logistic regression was applied to assess the association between weight loss and SES. Results:During the reference period, 28% of the participants lost weight. A moderate weight loss was higher in patients with a household income between 3000€ and 4500€ per month (OR: 2.3; CI 95%: 1.0-5.2) and higher than 4500€ per month (OR: 3.0; CI 95%: 1.3-7.2) compared to the lowest income group (less than 3000€ per month). A severe weight loss was not associated with income. However, a severe weight loss was higher for retired patients (OR: 4.3; CI 95%: 1.1-17.0) compared to non-retired.Conclusion: The potential reduction of health inequality by an elimination of social inequalities in weight loss among patients with angina pectoris might be substantial. Moderate weight loss in overweight patients with angina pectoris at baseline could be associated with household income. Intervention strategies in secondary prevention should address these social inequalities in order to support equity in health. [less ▲] Detailed reference viewed: 90 (6 UL)Weighted Banzhaf interaction indexes and weighted least squares Marichal, Jean-Luc ; Mathonet, Pierre Scientific Conference (2010, January) Detailed reference viewed: 26 (0 UL)Weighted Banzhaf power and interaction indexes through weighted approximations of games Marichal, Jean-Luc ; Mathonet, Pierre in European Journal of Operational Research (2011), 211(2), 352-358 The Banzhaf power index was introduced in cooperative game theory to measure the real power of players in a game. The Banzhaf interaction index was then proposed to measure the interaction degree inside ... [more ▼] The Banzhaf power index was introduced in cooperative game theory to measure the real power of players in a game. The Banzhaf interaction index was then proposed to measure the interaction degree inside coalitions of players. It was shown that the power and interaction indexes can be obtained as solutions of a standard least squares approximation problem for pseudo-Boolean functions. Considering certain weighted versions of this approximation problem, we define a class of weighted interaction indexes that generalize the Banzhaf interaction index. We show that these indexes define a subclass of the family of probabilistic interaction indexes and study their most important properties. Finally, we give an interpretation of the Banzhaf and Shapley interaction indexes as centers of mass of this subclass of interaction indexes. [less ▲] Detailed reference viewed: 84 (3 UL)Weighted Banzhaf power and interaction indexes through weighted approximations of games Marichal, Jean-Luc ; Mathonet, Pierre in Dubois, Didier; Grabisch, Michel; Mesiar, Radko (Eds.) et al 32nd Linz Seminar on Fuzzy Set Theory (LINZ 2011) - Decision Theory: Qualitative and Quantitative Approaches (2011) In cooperative game theory, various kinds of power indexes are used to measure the influence that a given player has on the outcome of the game or to define a way of sharing the benefits of the game among ... [more ▼] In cooperative game theory, various kinds of power indexes are used to measure the influence that a given player has on the outcome of the game or to define a way of sharing the benefits of the game among the players. The best known power indexes are due to Shapley [15,16] and Banzhaf [1,5] and there are many other examples of such indexes in the literature. When one is concerned by the analysis of the behavior of players in a game, the information provided by power indexes might be far insufficient, for instance due to the lack of information on how the players interact within the game. The notion of interaction index was then introduced to measure an interaction degree among players in coalitions; see [13,12,7,8,14,10,6] for the definitions and axiomatic characterizations of the Shapley and Banzhaf interaction indexes as well as many others. In addition to the axiomatic characterizations the Shapley power index and the Banzhaf power and interaction indexes were shown to be solutions of simple least squares approximation problems (see [2] for the Shapley index, [11] for the Banzhaf power index and [9] for the Banzhaf interaction index). We generalize the non-weighted approach of [11,9] by adding a weighted, probabilistic viewpoint: A weight w(S) is assigned to every coalition S of players that represents the probability that coalition S forms. The solution of the weighted least squares problem associated with the probability distribution w was given in [3,4] in the special case when the players behave independently of each other to form coalitions. In this particular setting we introduce a weighted Banzhaf interaction index associated with w by considering, as in [11,9], the leading coefficients of the approximations of the game by polynomials of specified degrees.We then study the most important properties of these weighted indexes and their relations with the classical Banzhaf and Shapley indexes. [less ▲] Detailed reference viewed: 82 (0 UL)Weighted Fair Multicast Multigroup Beamforming under Per-antenna Power Constraints Christopoulos, Dimitrios ; Chatzinotas, Symeon ; Ottersten, Björn in Signal Processing, IEEE Transactions on (2014), 62(19), 5132-5142 A multi-antenna transmitter that conveys independent sets of common data to distinct groups of users is considered. This model is known as physical layer multicasting to multiple co-channel groups. In ... [more ▼] A multi-antenna transmitter that conveys independent sets of common data to distinct groups of users is considered. This model is known as physical layer multicasting to multiple co-channel groups. In this context, the practical constraint of a maximum permitted power level radiated by each antenna is addressed. The per-antenna power constrained system is optimized in a maximum fairness sense with respect to predetermined quality of service weights. In other words, the worst scaled user is boosted by maximizing its weighted signal-to-interference plus noise ratio. A detailed solution to tackle the weighted max-min fair multigroup multicast problem under per-antenna power constraints is therefore derived. The implications of the novel constraints are investigated via prominent applications and paradigms. What is more, robust per-antenna constrained multigroup multicast beamforming solutions are proposed. Finally, an extensive performance evaluation quantifies the gains of the proposed algorithm over existing solutions and exhibits its accuracy over per-antenna power constrained systems. [less ▲] Detailed reference viewed: 297 (36 UL)Weighted Fair Multicast Multigroup Beamforming Under Per-antenna Power Constraints Christopoulos, Dimitrios ; Chatzinotas, Symeon ; Ottersten, Björn in Multicast multigroup beamforming under per-antenna power constraints (2014, June) Linear precoding exploits the spatial degrees of freedom offered by multi-antenna transmitters to serve multiple users over the same frequency resources. The present work focuses on simultaneously serving ... [more ▼] Linear precoding exploits the spatial degrees of freedom offered by multi-antenna transmitters to serve multiple users over the same frequency resources. The present work focuses on simultaneously serving multiple groups of users, each with its own channel, by transmitting a stream of common symbols to each group. This scenario is known as physical layer multicasting to multiple co-channel groups. Extending the current state of the art in multigroup multicasting, the practical constraint of a maximum permitted power level radiated by each antenna is tackled herein. The considered per antenna power constrained system is optimized in a maximum fairness sense. In other words, the optimization aims at favoring the worst user by maximizing the minimum rate. This Max-Min Fair criterion is imperative in multicast systems, where the performance of all the receivers listening to the same multicast is dictated by the worst rate in the group. An analytic framework to tackle the Max-Min Fair multigroup multicasting scenario under per antenna power constraints is therefore derived. Numerical results display the accuracy of the proposed solution and provide insights to the performance of a per antenna power constrained system. [less ▲] Detailed reference viewed: 168 (5 UL)Weighted Group Algebras on Groups of Polynomial Growth ; ; et al in Mathematische Zeitschrift (2003), 245(4), 791-821 Detailed reference viewed: 73 (1 UL)Weighted lattice polynomials Marichal, Jean-Luc in Discrete Mathematics (2009), 309(4), 814-820 We define the concept of weighted lattice polynomial functions as lattice polynomial functions constructed from both variables and parameters. We provide equivalent forms of these functions in an ... [more ▼] We define the concept of weighted lattice polynomial functions as lattice polynomial functions constructed from both variables and parameters. We provide equivalent forms of these functions in an arbitrary bounded distributive lattice. We also show that these functions include the class of discrete Sugeno integrals and that they are characterized by a median based decomposition formula. [less ▲] Detailed reference viewed: 92 (6 UL)Weighted lattice polynomials Marichal, Jean-Luc in Proc. 11th Int. Conf. on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU 2006), Paris, France, July 2-7, 2006 (2006, July) We define the concept of weighted lattice polynomials as lattice polynomials constructed from both variables and parameters. We provide equivalent forms of these functions in an arbitrary bounded ... [more ▼] We define the concept of weighted lattice polynomials as lattice polynomials constructed from both variables and parameters. We provide equivalent forms of these functions in an arbitrary bounded distributive lattice. We also show that these functions include the class of discrete Sugeno integrals and that they are characterized by a remarkable median based decomposition formula. [less ▲] Detailed reference viewed: 82 (0 UL) |
||