Model-independent measurement of mixing parameters in D0 → K S 0 π+π− decays

The first model-independent measurement of the charm mixing parameters in the decay D 0 → K S 0 π + π − is reported, using a sample of pp collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 1.0 fb−1 at a centre-of-mass energy of 7 TeV. The measured values are x=(−0.86±0.53±0.17)×10−2,y=(+0.03±0.46±0.13)×10−2, x=(−0.86±0.53±0.17)×10−2,y=(+0.03±0.46±0.13)×10−2, where the first uncertainties are statistical and include small contributions due to the external input for the strong phase measured by the CLEO collaboration, and the second uncertainties are systematic

Oxidative degradation of pyruvate formate-lyase

The reaction mechanisms of oxidative degradation of the anaerobic radical enzyme pyruvate formatelyase (PFL) have been examined at the theoretical hybrid Hartree-Fock/density functional theory level B3-LYP. It is concluded that the most likely scenario in</p

Evaluation of Government Information Systems Effectiveness: The Case of e-Participation Portals in Russia

Part 1: General E-Democracy and E-ParticipationInternational audienceThis paper is devoted to the study of methods for assessing the effectiveness of public information systems that can identify the relationship between the characteristics of individual factors of their creation and assess the impact of these factors on their overall effectiveness and ability to create public values. After reviewing, selecting and adapting an evaluation methodology, it was tested with several e-participation portals. This choice was due to both the growing interest in increasing the effectiveness of these portals, and the relative availability of initial information for analysis. During the research, a number of hypotheses were formulated and tested. The results obtained and presented in this paper confirm the suitability of the chosen methodology to solve the stated tasks of effectiveness assessment of government information systems and the influencing factors