0000000000999969
AUTHOR
M Olivo
Lateral distribution of muons in IceCube cosmic ray events
In cosmic ray air showers, the muon lateral separation from the center of the shower is a measure of the transverse momentum that the muon parent acquired in the cosmic ray interaction. IceCube has observed cosmic ray interactions that produce muons laterally separated by up to 400 m from the shower core, a factor of 6 larger distance than previous measurements. These muons originate in high pT (>2 GeV/c) interactions from the incident cosmic ray, or high-energy secondary interactions. The separation distribution shows a transition to a power law at large values, indicating the presence of a hard pT component that can be described by perturbative quantum chromodynamics. However, the ra…
Transcatheter arterial chemoembolization for hepatocellular carcinoma in cirrhosis;survival rate and prognostic factors
Background: The role of prognostic variables in the treatment of hepatocellular carcinoma (HCC) by transarterial chemoembolisation (TACE) is controversial. Aims: To evaluate the survival of patients with HCC on cirrhosis treated with TACE and to analyse the prognostic factors affecting survival. Methods: From 1996 to 2006, 580 consecutive patients with HCC in cirrhosis were observed. Of these 194 patients underwent TACE. The primary end-point was survival. Independent predictors of survival were identified using the Cox model. Results: The cumulative 1-year, 3-year, and 5-year survival rates were 96%, 60%, and 41%, respectively. The multivariate analysis showed significant reduction of surv…