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We present the design and implementation of a vision-based system for cooperative manipulation at millimeter to micrometer scales. The system is based on an admittance control algorithm that implements a broad class of guidance modes called virtual fixtures. A virtual fixture, like a real fixture, limits the motion of a tool to a prescribed class or range(More)
CONTEXT Bare-metal stenting with abciximab pretreatment is currently considered a reasonable reperfusion strategy for acute ST-segment elevation myocardial infarction (STEMI). Sirolimus-eluting stents significantly reduce the need for target-vessel revascularization (TVR) vs bare-metal stents but substantially increase procedural costs. At current European(More)
Neutrinoless double beta decay is a process that violates lepton number conservation. It is predicted to occur in extensions of the standard model of particle physics. This Letter reports the results from phase I of the Germanium Detector Array (GERDA) experiment at the Gran Sasso Laboratory (Italy) searching for neutrinoless double beta decay of the(More)
We have constructed and operated a 3 ton liquid argon time projection chamber for the R&D programme of the ICARUS project. The chamber has been in operation since May 1991 collecting events from cosmic rays and a monochromatic gamma ray source. We describe the construction of the different detector components and their assembly; we report the solutions(More)
The trials with angiotensin-converting enzyme (ACE) inhibitors have followed a particular trend: in the first studies treatment was provided to severely ill patients several time (months or year) after the acute event. Thereafter, in few studies ACE-inhibitors were provided within 2 weeks of the event to patients with left ventricular dysfunction after(More)
BACKGROUND Primary bare metal stenting and abciximab infusion are currently considered the best available reperfusion strategy for acute ST-segment elevation myocardial infarction (STEMI). Sirolimus eluting stents (SES), compared to bare metal stent (BMS), greatly reduce the incidence of binary restenosis and target vessel revascularisation (TVR), but their(More)
Experiments in underground laboratories have shown evidence of physics beyond the standard model. The anomalies observed in electron-neutrinos from the sun and muon-neutrinos from cosmic rays interactions in the atmosphere can be explained if neutrino are massive and oscillate. The physics program at the INFN Gran Sasso Laboratory that we are defining will(More)
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