187,187 research outputs found
The World According to De Finetti
No full textBruno de Finetti is one of the founding fathers of the subjectivist school of probability, where probabilities are interpreted as rational degrees of belief. His work on the relation between the theorems of probability and rationality is among the corner stones of modern subjective probability theory. De Finetti maintained that rationality requires that degrees of belief be coherent, and he argued that the whole of probability theory could be derived from these coherence conditions. De Finetti’s interpretation of probability has been highly influential in science. This paper focuses on the application of this interpretation to quantum mechanics. We argue that de Finetti held that the coherence conditions of degrees of belief in events depend on their verifiability. Accordingly, the standard coherence conditions of degrees of belief that are familiar from the literature on subjective probability only apply to degrees of belief in events which could (in principle) be jointly verified; and the coherence conditions of degrees of belief in events that cannot be jointly verified are weaker. While the most obvious explanation of de Finetti’s verificationism is the influence of positivism, we argue that it could be motivated by the radical subjectivist and instrumental nature of probability in his interpretation; for as it turns out, in this interpretation it is difficult to make sense of the idea of coherent degrees of belief in, and accordingly probabilities of unverifiable events. We then consider the application of this interpretation to quantum mechanics, concentrating on the Einstein-Podolsky-Rosen experiment and Bell’s theorem
An Outcome of the de Finetti Infinite Lottery is Not Finite
No full textA randomly selected number from the infinite set of positive integers—the so-called de Finetti lottery—will not be a finite number. I argue that it is still possible to conceive of an infinite lottery, but that an individual lottery outcome is knowledge about set-membership and not element identification. Unexpectedly, it appears that a uniform distribution over a countably infinite set has much in common with a continuous probability density over an uncountably infinite set
USE OF HYPERBARIC PRILOCAINE IN AMBULATORY SURGERY
No full textUSE OF HYPERBARIC PRILOCAINE IN AMBULATORY SURGERY
F. Troisi, A. Ferrara, P. Merlin, F. Sacco, E. Finetti, S. Collini
Anestesia e Ranimazione, Az Ospedaliera S Andrea, Roma, Italy
Background and aims: Data on prilocaine use for ambulatory intrathecal anaesthesia are limited. In this randomized study we compared 2% hyperbaric prilocaine and sufentanil with 2% hyperbaric bupivacaine and sufentanil for spinal anesthesia in outpatients undergoing elective anorectal surgery without increasing side - effects or delaying.
Methods: Patients ASA I-III were randomly allocated to receive 30mg hyperbaric prilocaine plus 5 microg sufentanyl (group PS,n=20) or 10 mg hyperbaric bupivacaine plus 5 microg sufentanyl (group BS, n=20) in sitting position. After sitting for 3 min (group PS) and 10 min (group BS), patients were positioned for surgery. Written informed consent was obtained from all subjects.
Results: There were no significant differences in intraoperative outcomes (hypotension, bradycardia, respirator depression) but mean recovery, discharge time, postoperative pain and urinary retention were significantly shorter in group PS.
Conclusions: This study demonstrates the superiority of the combination of low-dose hyperbaric prilocaine and sufenatnyl for spinal anaesthesia in ambulatory anorectal surgery. It is an excellent alternative to bupivacain because of faster attainment and resolution block, greater haemodynamic stability, earlier deambulation, reduced risk of urinary retention and early patients discharge.
Assigned speakers:
Dr. Fabiana Troisi, Az Ospedaliera S Andrea , Roma , Italy
Assigned in sessions:
06.09.2012, 08:00-18:30, Posters for Electronic Viewing, Posters for Electronic Viewing, Poster Area
07.09.2012, 08:00-18:30, Posters for Electronic Viewing, Posters for Electronic Viewing, Poster Are
An extended X-ray absorption fine structure study of Mn ultrathin films grown on Cu(100)
No full textUltrathin Mn ®lms grown at room temperature on Cu(1 0 0) have been studied with extended X-ray absorption ®nestructure (EXAFS) assisted by low energy electron diraction (LEED). At a ®lm coverage H 0:5 monolayers (ML),corresponding to the presence of a c2 2 superstructure in the LEED pattern, we obtained values of the bond lengthand of the eective coordination number which are consistent with the formation of a surface MnCu alloy, in agreementwith previously published results. At increasing coverage the degradation of the LEED pattern with the disappearenceof the spots at H 6 ML and the absence of a clear multishell signal in the EXAFS results point towards a progressivedecrease of long-range crystal order, probably caused by the strain of Mn ®lms growing in a strongly distorted lattice
Esami di maturità
No full textScheda "Esami di maturità" di Ladislao Fodor, regia di Mario Landi, 1954
"Milano" il maestro girovago
No full textScheda "'Milano' il maestro girovago", regia di Alessandro Marenco, 2007-2008
La maestrina degli operai
No full textScheda "La maestrina degli operai", regia di Guglielmo Morandi, 1970
Esami di maturità
No full textScheda audiovisivo "Esami di maturità", tratto da una commedia in tre atti di Ladislao Fodor, regia di Mario Landi, 1954
Una piccola scuola rurale nell'Italia fascista: "Le Rotte" di Dego
No full textScheda "Una piccola scuola rurale nell'Italia fascista: 'Le Rotte' di Dego", regia di Alessandro Marenco, 2010
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