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The following are treatments for erectile dysfunction: Working with doctors to select medications that do not impair erectile function Making life style improvements (for example, quitting smoking and exercising more), Taking drugs to treat ED such as sildenafil (Viagra), vardenafil (Levitra) or tadalafil (Cialis), Inserting medications into the urethra (intraurethral suppositories), Injecting medications into the corpora cavernosae (intracavernosal injections) Erectile dysfunction, heart disease and other vascular diseases: The root cause of the narrowing of the arteries is caused by atheroma. Atheroma is like fatty patches or plaques that develop within the inside lining of arteries. (This is similar to water pipes that get furred up with scale.) Plaques of atheroma may gradually form over a number of years in one or more places in the body, commonly in arteries going to the heart, brain, legs and penis. In time, these can become bigger and cause enough narrowing of one or more of the arteries to cause symptoms and problems. Several other medications are being studied for treating erectile dysfunction; these include IC351 (another PDE5 inhibitor), sublingual apomorphine, and the combination of yohimbine and L-arginine. Scientists also are researching gene therapy to treat erectile dysfunction. Surgery to repair arteries (penile arterial reconstructive surgery) can reduce impotence caused by obstructions that block the flow of blood to the penis. The best candidates for such surgery are young men with discrete blockage of an artery because of a physical injury to the pubic area or a fracture of the pelvis. The procedure is less successful in older men with widespread blockage of arteries. What is tadalafil (Cialis)? Tadalafil (Cialis) is the third oral medicine approved by the U.S. FDA for the treatment of erectile dysfunction. Like sildenafil (Viagra) and vardenafil (Levitra), tadalafil inhibits PDE5 (as described earlier). As a rule, a psychological cause is more likely for the ED than a physical cause if there are times when you can get a good erection, even though most of the time you cannot. (For example, if you can get an erection by masturbating, or wake up in the morning with an erection.)
Optimization system for design of laser-welded steel-sandwich structures
The purpose of the optimization system is to provide the optimal structural design of laser welded steel-sandwich structures. This system aids the designer in achieving more efficient and reliable design in less time. System utilizes a genetic algorithm for iteration of design solutions in obtaining an optimal solution. Furthermore, it does homogenization of the sandwich panel in order to decrease the number of FE elements and save the assessment time. A VB.NET application sequentially executes FORTRAN genetic algorithm, ANSYS structural evaluation in batch mode and MS interoperability functions to store data to MS EXCEL sheet while optimization process is ongoing. System is particularly useful for design of corrugated-core steel sandwich panel structures. Procedure is very efficient in achieving a minimum structural weight while satisfying yield and buckling criteria.