Vascular Dementia: Introduction. Vascular dementia is the second most common type of dementia after Alzheimer's disease. Vascular dementia is a neurodegenerative disorder of the brain in which there is cognitive decline and deficiencies in mental performance that generally occur in steps.
Basics of RF drive test/testing. RF Drive test/testing is the procedure to evaluate performance of wireless modem/system while driving(or in motion). The wireless modem or system may include any wireless standards such as GSM,WCDMA,HSPA,UMTS,LTE,WIMAX,WLAN etc.
IR stands for Infared and means the remote must be pointed directly at the receiver. RF stands for Radio Frequency and means the remote is multi-directional. You can tell what kind of remote you have by looking at the number in the upper-left corner of the remote. Examples are RC64R, RC65, RC65RB, RC65RX, etc.