L ith osi ina ▁Category : M oth s ▁described ▁in ▁ 1 9 1 7 <0x0A> </s> ▁P PN ▁may ▁refer ▁to : ▁Gu ill ermo ▁León ▁Val encia ▁Airport ▁Pre - P ot tery ▁Ne ol ith ic ▁Pin ole ville ▁P omo ▁Nation ▁Niger ien ▁Progress ive ▁Party - A fr ican ▁Democratic ▁R ally , ▁from ▁the ▁French ▁ac ron ym , ▁Parti ▁Progress iste ▁N ig éri en ▁P and it ▁P ran ▁N ath ▁P ing at ▁P ang ku an ▁Neg ara , ▁a ▁Malays ian ▁honour ▁Ped un cul op ont ine ▁nucle us ▁Princi pal ▁protected ▁note , ▁an ▁invest ment ▁product ▁Pro top lan et ary ▁ne b ula ▁Parameter ized ▁post - New ton ian ▁formal ism , ▁a ▁classification ▁system ▁for ▁different ▁theories ▁of ▁gravity ▁P ure ▁proportional ▁navigation , ▁a ▁variant ▁of ▁proportional ▁navigation ▁in ▁which ▁acceleration ▁commands ▁are ▁per pend icular ▁to ▁the ▁velocity ▁vector ▁of ▁the ▁miss ile ▁ ▁Ph arm acy ▁Product ▁Number ▁ ▁Pacific ▁Patri ot ▁Network ▁ ▁See ▁also ▁Bis ( tri phen yl ph osph ine ) imin ium ▁ch lor ide ▁( P PN Cl ), ▁a ▁source ▁of ▁P PN + ▁c ation <0x0A> </s> ▁The ▁office ▁of ▁Vice - Ch an cell or ▁of ▁the ▁University ▁of ▁London ▁was ▁created ▁by ▁the ▁Royal ▁Char ter ▁of ▁ 1 8 3 6 , ▁which ▁founded ▁the ▁university . ▁The ▁role ▁of ▁the ▁vice - chan cell or ship ▁at ▁the ▁university ▁has