We propose a new scintillation-type detector in which high-energy radiation generates electron–hole pairs in a direct-gap semiconductor material that subsequently recombine producing infrared light to be registered by a photo-detector. The key issue is how to make the semiconductor essentially transparent to its own infrared light, so that photons generated deep inside the semiconductor could r...

The literature contains few references to the quantitative determination of zinc in human blood. It is difficult to compare the scant data which are available because of the divergence of the methods used and of the units in which different authors chose to express their results (l-5). It became apparent in the pursuit of our work on zinc in leucocytes and red blood cells, preliminary reports o...

A 39-year-old Caucasian female with hypertrophic obstructive cardiomyopathy and with history of syncope and other high-risk features for sudden cardiac death underwent implantation of St Jude Photon DR dual chamber cardioverter-defibrillator (ICD). Two years later she was found to be in atrial fibrillation and anticoagulated with warfarin. Three years after the ICD was implanted, it delivered a...

A fast clean-up method has been developed to purify maize extracts and to detect moniliformin (MON) in maize samples from North-West Italy over a four-year period (2008-2011). The method is based on the use of MycoSep® 240 Mon clean-up columns (Romer Labs®). Samples were extracted using acetonitrile/water (84:16, v/v), and the extracts were purified with previously described clean-up columns. T...

in this study, generation of the transient evoked ooacoustic emissions in human ear has been simulated using a new electroacoustic model. the method of state variables was adopted to calculate the auditory model, and numerical integration methods have been used to solve differential equations in matlab. simulation results have been compared with the real data. in this study, latency curves, fre...

the significant consumption of gas in the world results in the emission of greenhouse gases into atmosphere. abadan refinery has always been the biggest and oldest oil refinery in the middle east and has a variety of refined products. after six months of collecting data about pollutant concentration emitted from a stack of old furnaces of units 75 and new unit 200, the emission factor of the po...

in order to determine the incidence of buffaloes on enteric ch4 emissions, information about animal production and farm management was analyzed and the ch4 emission factor estimated using the ipcc tier 2 model. ch4 emission factor for the category of buffalo cattle and buffalo bulls was estimated for the period 2000-2007, in italy, europe and worldwide. during 2007, the ch4 emission factor for ...

combined pet/ct scanners now play a major role in medicine for in vivo imaging in oncology, cardiology, neurology, and psychiatry. as the performance of a scanner depends not only on the scintillating material but also on the scanner design, with regards to the advent of newer scanners, there is a need to optimize acquisition protocols as well as to compare scanner performances on an objective ...

ship exhaust emission inventories and their associated externalities constitute valuableinformation resources towards policy making and management of the influence exerted by shipping on airquality. to this extent, the container terminal at the greek port of piraeus by virtue of its shipping significanceand its urbanised character was selected in order to provide an estimation of the emissions ...