People Who Suffer Depression And Anxiety After A Traumatic Brain Injury May Have Damaged White Matter. Jun 16, 2015 12:00 AM By Ed Cara @EdCara4. Researchers from the University at Pittsburgh Medical Center may have figured out why people suffer depression and anxiety after a concussion.
How to Read Speed Rating, Load Index & Service Descriptions. Using a P195/60R15 87S tire size as our example, the 87S at the end of the size represents the tire's service description. A service description identifies the tire's load index and speed rating.
Once the highest speed rating a tire could have, âVâ used to represent a maximum of 149 mph (240 kph) or more. Nowadays, it means 149 mph but no higher. Speed Rating W. A relatively new addition to the speed rating chart, tires with speed rating âWâ can achieve a maximum sustained speed of 168 mph (270 kph). Speed Rating Z