451 research outputs found
Revealing consumers' willingness to pay: A comparison of the BDM mechanism and the vickrey auction.
No full textRuffieux (Roland) Le Mouvement chrétien-social en Suisse romande (1891-1949)
No full textPoulat Emile. Ruffieux (Roland) Le Mouvement chrétien-social en Suisse romande (1891-1949). In: Archives de sociologie des religions, n°30, 1970. p. 236
Ruffieux (Roland) éd 1871-1971. La Liberté en son premier siècle
No full textPoulat Emile. Ruffieux (Roland) éd 1871-1971. La Liberté en son premier siècle. In: Archives de sciences sociales des religions, n°46/2, 1978. p. 300
Charge-density oscillation on graphite induced by the interference of electron waves
No full textWe report on a pronounced redistribution of the local electronic density of states at the graphite surface, which is induced by the presence of low energy hydrogen-ion induced point defects. Scanning tunneling microscopy reveals standing waves in the local density of states, which are due to backscattering of electron wave functions at individual point defects. The superstructure thereby formed is directly related to the pointlike structure of the Fermi surface of graphite. For high defect density interference patterns are observed which sensitively change structure on the relative positions of the defects. These patterns could be reproduced by tight binding simulations of various defect distributions
Bowl Inversion of Surface-Adsorbed Sumanene
No full textBowl-shaped π-conjugated compounds offer the possibility to study curvature-dependent host–guest interactions and chemical reactivity in ideal model systems. For surface-adsorbed π bowls, however, only conformations with the bowl opening pointing away from the surface have been observed so far. Here we show for sumanene on Ag(111) that both bowl-up and bowl-down conformations can be stabilized. Analysis of the molecular layer as a function of coverage reveals an unprecedented structural phase transition involving a bowl inversion of one-third of the molecules. On the basis of scanning tunneling microscopy (STM) and complementary atomistic simulations, we develop a model that describes the observed phase transition in terms of a subtle interplay between inversion-dependent adsorption energies and intermolecular interactions. In addition, we explore the coexisting bowl-up and -down conformations with respect to host–guest binding of methane. STM reveals a clear energetic preference for methane binding to the concave face of sumanene
sj-docx-1-smm-10.1177_09622802221090759 - Supplemental material for Combining individual patient data from randomized and non-randomized studies to predict real-world effectiveness of interventions
No full textSupplemental material, sj-docx-1-smm-10.1177_09622802221090759 for Combining individual patient data from randomized and non-randomized studies to predict real-world effectiveness of interventions by Michael Seo, Thomas PA Debray, Yann Ruffieux, Sandro Gsteiger, Sylwia Bujkiewicz, Axel Finckh, Matthias Egger and Orestis Efthimiou in Statistical Methods in Medical Research</p
Electronic Structure of Atomically Precise Graphene Nanoribbons
No full textSome of the most intriguing properties of graphene are predicted for specifically designed nanostructures such as nanoribbons. Functionalities far beyond those known from extended graphene systems include electronic band gap variations related to quantum confinement and edge effects, as well as localized spin-polarized edge states for specific edge geometries. The inability to produce graphene nanostructures with the needed precision, however, has so far hampered the verification of the predicted electronic properties. Here, we report on the electronic band gap anddispersion of the occupied electronic bands of atomically precise graphene nanoribbons fabricated via on-surface synthesis. Angle-resolved photoelectron spectroscopy and scanning tunnelingspectroscopy data from armchair graphene nanoribbons of width N = 7 supported on Au(111) reveal a band gap of 2.3 eV, an effective mass of 0.21 m0 at the top of the valence band, and anenergy-dependent charge carrier velocity reaching 8.2 105 m/s in the linear part of the valence band. These results are in quantitative agreement with theoretical predictions that include image charge corrections accounting for screening by the metal substrate and confirm the importance of electron-electron interactions in graphene nanoribbon
Do price-tags influence consumers' willingness to pay ? On external validity of using auctions for measuring value
No full textThe paper considers the external validity of the growing set of literature that uses laboratory auctions to reveal consumers' willingness to pay for consumer goods, when the concerned goods are sold in retailing shops through posted prices procedures. Here, the quality of the parallel between the field and the lab crucially depends on whether being informed of the actual field price influences a consumer's willingness to pay for a good or not. We show that the elasticity of the WTP revision, according to the field price estimation error, is significant, positive and can be roughly approximate to one quarter of the error. We then discuss the normative implications of these results for future experiments aimed at eliciting private valuations through auctions.EXPERIMENTAL ECONOMICS;WILLINGNESS TO PAY;AUCTION;POSTED PRICE;VALUE ELICITATION;CONSUMER BEHAVIOR
DS_10.1177_0272989X18775975 – Supplemental material for Prediction of Real-World Drug Effectiveness Prelaunch: Case Study in Rheumatoid Arthritis
No full textSupplemental material, DS_10.1177_0272989X18775975 for Prediction of Real-World Drug Effectiveness Prelaunch: Case Study in Rheumatoid Arthritis by Eva-Maria Didden, Yann Ruffieux, Noemi Hummel, Orestis Efthimiou, Stephan Reichenbach, Sandro Gsteiger, Axel Finckh, Christine Fletcher, Georgia Salanti and Matthias Egger in Medical Decision Making</p
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