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The objective of the study was to test the hypothesis that dynamic cerebral pressure-autoregulation is associated with the outcome of patients with severe head injury and to derive optimal criteria for future studies on the predictive value of autoregulation indices. Repeated measurements were performed on 32 patients with severe head injury. Arterial blood(More)
The ANTARES Collaboration proposes to construct a large area water Cherenkov detector in the deep Mediterranean Sea, optimised for the detection of muons from high-energy astrophysical neutrinos. This paper presents the scientific motivation for building such a device, along with a review of the technical issues involved in its design and construction. The(More)
We present a new method for numerical propagations through Lyot-style coronagraphs using finite size occulting masks. Standard methods for coronagraphic simulations involve Fast Fourier Transforms (FFT) of very large arrays, and computing power is an issue for the design and tolerancing of coronagraphs on Extremely Large Telescopes (ELT) in order to handle(More)
A study of the centrally produced ηπ 0 and ηπ − systems in pp interactions at 450 GeV/c Abstract A partial wave analysis of the centrally produced ηπ 0 and ηπ − channels has been performed in pp collisions using an incident beam momentum of 450 GeV/c. Clear a 0 (980) and a 2 (1320) signals have been observed in S and D + waves respectively. The dP T , φ and(More)
Monte Carlo production in CMS has received a major boost in performance and scale since the past CHEP06 conference. The production system has been re-engineered in order to incorporate the experience gained in running the previous system and to integrate production with the new CMS event data model, data management system and data processing framework. The(More)
The first measurement of the charged-particle multiplicity density at midrapidity in Pb-Pb collisions at a center-of-mass energy per nucleon pair ffiffiffiffiffiffiffiffi s NN p ¼ 2:76 TeV is presented. For an event sample corresponding to the most central 5% of the hadronic cross section, the pseudorapidity density of primary charged particles at(More)
The NA57 experiment has been designed to study the onset of enhanced production of multi-strange baryons and anti-baryons in Pb-Pb collisions with respect to p-Be collisions. Such enhancement, first observed by experiment WA97, is considered as evidence for a phase transition to a new state of matter – the Quark Gluon Plasma (QGP). In this paper, we report(More)
AIM To determine if cerebral blood flow velocity increases during all types of neonatal seizure, and whether the effect is due solely to an increase in blood pressure, transmitted to the cerebral circulation when autoregulation is impaired. METHODS Seizures were diagnosed in 11 high risk neonates using cotside 16 channel video-EEG polygraphy. EEG,(More)
Four very low birth weight, very premature infants were monitored during a 12 • postural elevation using diffuse correlation spec-troscopy (DCS) to measure microvascular cerebral blood flow (CBF) and transcranial Doppler ultrasound (TCD) to measure macrovascular blood flow velocity in the middle cerebral artery. DCS data correlated significantly with peak(More)