nope i am not nittany lion, riten. and thapap, you are way off target...i use citeseer coz they have pretty good collection of research papers...in fact they have reports, manuals and other documents (non-published ones too) hehe...so i use it often. tesla, magnetic flux acting normal per unit area....hehe...that's thapap...he needs an electric field :P i am diffused one..i don't need the field but i tend to leave a variation in concentration of particles that is enough for a uniform motion hehe...i move thermally hehe... so thapap is drift and i am diffusion :P and thapap, damn you are VLSI guru! but i happen to take fourier transform of emotions hehe..:p i hope i answered your query. LooTe