Abstract: A system (1) for setting the orientation of a 3d model (2) of an anatomical part comprises a 3d model (2) of an anatomical part having a model reference frame (MF); a tracker device (3) to be attached to a surgical instrument (100) active on a surgical object (101) having a surgery reference frame (SF), the tracker device (3) comprises sensing means (4) to detect the orientation of the tracker device (3) in a fixed reference frame (FF) to define a tracker device reference frame (TF), the system ( ) further comprises a processing unit (10) comprising a video output module (11) to be placed in signal communication with viewing means (200) to display the 3d model (2) in a viewing reference frame (VF); a memory module (12) configured to hold the 3d model (2); a signal acquisition module (13) to receive the orientation signal (OS) from the tracker device (3); a viewpoint shift module (14) configured to adjust the viewing reference frame (VF) as a function of the orientation signal (OS) so that the orientation of t

Abstract: A method of detecting break-ins in an intrusion-detection barrier which includes an array of sensors in signal communication with one another and connected to a control unit may include: calibrating at least one of the sensors of the array, the calibrating including: applying mechanical stress to the barrier to cause the barrier to resonate at characteristic frequencies; and creating a digital filter, for the at least one of the sensors, configured to identify the characteristic frequencies; and/or detecting external forcing applied to the barrier, the external forcing having oscillation-forcing frequencies, the detecting including: applying the filter to identify the oscillation-forcing frequencies applied to the barrier, and discriminating the oscillation-forcing frequencies from the characteristic frequencies of the barrier; selecting at least one energy threshold value; calculating an energy value for each of the oscillation-forcing frequencies; and comparing each of the energy values with the at least on

Abstract: Method of detecting break-ins in an intrusion-detection barrier which comprises an array of sensors in signal communication with one another and connected to a control unit; said method comprising the steps of: calibrating at least one sensor of the array, detecting an external forcing having oscillation forcing frequencies applied to the intrusion-detection barrier, generating an alarm signal when the external forcing is detected; the method being characterized in that the step of calibrating comprises the sub-steps of: applying mechanical stress to said intrusion-detection barrier to cause said intrusion-detection barrier to resonate at its characteristic frequencies; creating a digital filter for the sensor configured to identify the characteristic frequencies; the step of detecting comprising the sub-steps of: applying the filter to identify the forcing frequencies applied to the intrusion-detection barrier, selecting at least one energy threshold value, calculating an energy value for each of the forcing

Abstract: A method and a device, for assessing whether a drug of abuse and/or a metabolite of a drug of abuse is present in a keratin material, where the method includes extracting a drug of abuse and/or a metabolite from a subject's keratin material, by prearranging an amount of the keratin material; prearranging an extraction composition; bringing the keratin material into contact with the extraction composition in order to obtain an extract that contains the drug of abuse and/or the metabolite, wherein the extraction composition contains a compound selected among urea and urea derivatives.