(1) Subject to this section and to sections 142A, 144 and 146, the rate (in this Chapter referred to as "the scheduled rate") of jobseeker's allowance shall be -
(a) in the case of a person who -
(i) in any continuous period of unemployment, as read in accordance with section 141 (3), has been in receipt of jobseeker's benefit or jobseeker's allowance in respect of not less than 390 days of unemployment, or
(ii) immediately before the week of unemployment for which jobseeker's allowance is claimed, was in receipt of -
(I) one-parent family payment, but has ceased to be entitled to that allowance by virtue of no longer being regarded as a qualified parent within the meaning of section 172 (1), or
(IA) widow's (non-contributory) pension, widower's (non-contributory) pension or surviving civil partner's (non-contributory) pension, but has ceased to be entitled to that pension by virtue of no longer being regarded as a widow, widower or surviving civil partner within the meaning of section
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