Vertical ridges can also be caused by nail injury and certain diseases, including rheumatoid arthritis, according to Rich. If, instead of a series of ridges, there's a single vertical streak, cautions Krant, this could be a sign of a tumor growing at the root of the nail.
Transmyocardial laser revascularization (TMR) is a procedure used to treat inoperable heart disease in people with persistent angina that isn't relieved by any other method.ntroduction [edit]. Most people with coronary artery disease are treated with angioplasty and stenting or coronary bypass surgery and medications to improve blood flow to the heart muscle. The objective of each of these approaches is to increase blood flow through the coronary arteries to the heart.
The physics of the SBR technology (see apps notes, Reverse Recovery Time (TRR) in Super Barrier Rectifier) lends itself to have these switching characteristics and makes the SBR perfectly suited for todayâs applications.February 2006, Rev 1.0 Page 6 of 7.he former standard measurement of T RR is to take the sum of t a and t b, as shown in Figure 2. February 2006, Rev 1.0 Page 1 of 7. AN-1012 Reverse Recovery Time (T RR) of the SBR Application Note Figure 2. Standard TRR For SBR devices, such method cannot be used because of the soft recovery characteristics.