Yassaie came to Britain in 1976 from Iran and became a United Kingdom national in 1984. He studied Electronics and Communications at the University of Birmingham gaining a first class honours Bachelor of Science degree in 1979. He stayed at Birmingham to complete a Doctor of Philosophy degree on the application of Charge-Coupled Devices (CCDs) to Sonar.
As an Iranian national, Yassaie gained a first class honours Bachelor of Science degree in 1979.
The context stated that Yassaie was an Iranian until 1984 when he became a British national.  Therefore, when he achieved his BS in 1979, he was still Iranian.
( z1 gain :ARG0 ( z2 person :name ( z3 name :op "Yassaie" ) :mod ( z4 nation :mod ( z5 country :name ( z6 name :op "Iran" ) ) ) ) :ARG1 ( z7 degree :name ( z8 name :op "Bachelor" :op "of" :op "Science" ) :mod ( z9 honor :mod ( z10 class :ord ( z11 ordinal-entity :value 1 ) ) ) ) :time ( z12 date-entity :year 1979 ) :manner ( z13 have-org-role :ARG0 z2 :ARG1 z5 ) )