Study of Factorial Moments in Neutrino Charged Current Interactions on Neon and Deuterium

Results are presented on the reduced scaled factorial moments of order 2, 3 and 4 in νμ Ne and νμD2 charged current interactions. Comparisons of the data with a Monte Carlo simulation are presented. The simulation is based on the Lund programs LEPTO 4.3 and JETSET 6.3 and including nuclear reinteractions and smearing due to measurement errors. Nuclear effects are shown to bias the estimate of the intermittency strengths.017 auteursSCOPUS: ar.jinfo:eu-repo/semantics/publishe

Online monitoring of laserpulses using the GPIB-interface of a Tektronix 2430 Digital Storage Oscilloscope

One of the monitoring aspects of holography at the 15 foot Bubble Chamber is the online checking of the lightoutput of the JK2000 ruby laser. Ideally the lightoutput should be a squared pulse in time. Spikes, pre- and postlasing (i.e., lasing before and after the squared pulse) can have a negative influence on the holograms. The scheme for monitoring the lightoutput is discussed in this paper as well as the programming codes and experimental setup necessary to enhance the holography. 1 fig

Lessons learned from a textbook outbreak: EHEC-O157:H7 infections associated with the consumption of raw meat products, June 2012, Limburg, Belgium.

&lt;p&gt;&lt;b&gt;BACKGROUND: &lt;/b&gt;On 5 June 2012 several enterohemorrhagic Escherichia coli, EHEC, O157:H7 infections were reported to the public health authorities of Limburg.&lt;/p&gt;&lt;p&gt;&lt;b&gt;METHODS: &lt;/b&gt;We performed a case-control study, a trace back/forward investigation and compared strains isolated from human cases and food samples. A case was defined as anyone with a laboratory-confirmed E. coli O157:H7-infection in North-East Limburg from May 30 2012 till July 15 2012. Family members with bloody diarrhea were also included as cases. E. coli O157 was isolated by culture and the presence of the virulence genes was verified using (q)PCR. Isolates were genotyped and compared by Pulsed Field Gel Electrophoresis (PFGE) and insertion sequence 629-printing (IS629-printing).&lt;/p&gt;&lt;p&gt;&lt;b&gt;RESULTS: &lt;/b&gt;The outbreak involved 24 cases, of which 17 were laboratory-confirmed. Five cases developed Hemolytic Uremic Syndrome (HUS) and fifteen were hospitalized. Cases reported a significantly higher consumption of &quot;steak tartare&quot;, a raw meat product (OR 48.12; 95% CI; 5.62- 416.01). Cases were also more likely to buy meat-products at certain butcheries (OR 11.67; 95% CI; 1.41 - 96.49). PFGE and IS629-printing demonstrated that the vtx1a vtx2a eae ehxA positive EHEC O157:H7 strains isolated from three meat products and all seventeen human stool samples were identical. In a slaughterhouse, identified by the trace-back investigation, a carcass infected with a different EHEC strain was found and confiscated.&lt;/p&gt;&lt;p&gt;&lt;b&gt;CONCLUSION: &lt;/b&gt;We present a well described and effectively investigated foodborne outbreak associated with meat products. Our main recommendations are the facilitation and acceleration of the outbreak detection and the development of a communication plan to reaches all persons at risk.&lt;/p&gt;&lt;p&gt;&lt;b&gt;MESH: &lt;/b&gt;Foodborne diseases, Shiga-toxigenic Escherichia coli, Enterohemorrhagic Escherichia coli, Meat products, Case control studies, Electrophoresis, Gel, Pulsed-Field.&lt;/p&gt;</p