A method of diagnosing attention deficient-hyperactivity disorder in a human patient by assessing the level of dopamine transporter in at least one region of the patient’s central nervous system, where an elevated level of dopamine transporter in the patient is indicative of ADHD. The method comprises: providing a NFET transistor in a NFET region and a PFET transistor in a PFET region. In addition, the pull bar can be detached from the bottom rail when not in use, thereby enhancing the aesthetic quality of the window covering. Application of the separation devices is in particular to the separation of paraxylene or metaxylene from a C8 aromatic charge. The reflectivity of the sample material is determined using the emissivity and transmissivity. Additionally, each location that is part of the telepresence conference may selectively, and independently of the other locations, designate all or selected portions of its media stream be carried over a different network from the one used to setup, control, and reserve resources for the telepresence conference.