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.
Price elasticity of demand (PED or Ed) is a measure used in economics to show the responsiveness, or elasticity, of the quantity demanded of a good or service to a change in its price, ceteris paribus.