We provide a general method for extending fair social preferences defined for riskless economic environments to the context of risk and uncertainty. We apply the method to the problems of managing unemployment allowances (in the context of macroeconomic fluctuations) and catastrophic risks (in the context of climate change). It requires paying attention to individuals’ risk attitudes and ration...

We study the connection between X-ray and UV properties of broad absorption line (BAL) wind in highly variable quasar PG 2112+059 by comparing Chandra-ACIS data with contemporaneous HST/STIS spectra three different epochs. observe a correlation whereby an increase equivalent-widths (EWs) BALs is accompanied redder spectrum. The growth EWs also significant dimming soft emission (<2 keV), consist...

R.A. JANIK, M.A. NOWAK, G. PAPP, I. ZAHED 1 Service de Physique Théorique, CEA Saclay, F-91191 Gif-sur-Yvette, France. 2 Department of Physics, Jagellonian University, 30-059 Krakow, Poland. GSI, Planckstr. 1, D-64291 Darmstadt, Germany 4 CNR Department of Physics, KSU, Kent, Ohio 44242, USA & HAS Research Group for Theoretical Physics, Eötvös University, Budapest, Hungary Department of Physics...

Zbigniew Puchała, Łukasz Rudnicki, Karol Życzkowski Institute of Theoretical and Applied Informatics, Polish Academy of Sciences, Bałtycka 5, 44-100 Gliwice, Poland Institute of Physics, Jagiellonian University, ul. Reymonta 4, 30-059 Kraków, Poland Center for Theoretical Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland Freiburg Insitute for Advanced Studies, Alb...

Hyun-Chul Kim, ∗ Maxim Polyakov, 3, † Micha l Prasza lowicz, ‡ Ghil-Seok Yang, § and Klaus Goeke ¶ Department of Physics, and Nuclear Physics & Radiation Technology Institute (NuRI), Pusan National University, 609-735 Busan, Republic of Korea Institut für Theoretische Physik II, Ruhr-Universität Bochum, D–44780 Bochum, Germany Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg 18830...

In this note we show that the asymmetric Prover-Delayer game developed in (ECCC, TR10–059) for Parameterized Resolution is also applicable to other treelike proof systems. In particular, we use this asymmetric Prover-Delayer to show a lower bound of the form 2Ω(n logn) for the pigeonhole principle in tree-like Resolution. This gives a new and simpler proof of the same lower bound established by...