Regiochemistry and Markovnikov's rule One of the most fundamental reactions in organic chemistry is the addition of HX to an alkene. This reaction is illusturated below, using the addition of HCl to ethylene as an example:
PhD vs EdD. The EdD is a doctorate in education. All this degree means is that your doctorate is granted by a college of education. At many universities (and some professional schools) graduate psychology programs (usually in counseling developmental, or educational/learning psychology) are housed in the college of education.
Erectile dysfunction (ED) means that you cannot get a proper erection. Most cases are due to narrowing of the arteries that take blood to the penis. This is due to a build-up of fatty deposits (atheroma) in these arteries in the same way that heart arteries are affected in people with heart disease. ED is usually treatable, most commonly by a tablet taken before sex.