Background Melanotic schwannoma is a rare variant of schwannoma composed of melanin-producing cellswith ultrastructural features of schwann cells.The descriptio
A concise synthesis of the mosquito oviposition attractant pheromone, (-)-(5R, 6S)- and(+)-(5S 6R)-6-acetoxy hexadecanolide from L-glutamic acid is described.
Reactions of [NH_4]_2[MS_4](M=Mo,W),CuX(X=Br,I)and PPh_3 in the solid state producedfour mixed-metal sulfur containing clusters{Cu_3MS_3X}(PPh_3)_3S(M=Mo,W;X=B
A series of Fe-P-B ultrafine amorphous alloy particles has been prepared by the chemical reduction method The composition and size of the particles have been e