The term "employment" shall not include service that is performed by a nonresident alien for the period he or she is temporarily present in the United States as a nonimmigrant under subparagraph (F), (H)(ii), (H)(iii), or (J) of section 101(a)(15) of the federal immigration and naturalization [nationality] act, as amended, and that is performed to carry out the purpose specified in the applicable subparagraph of the federal immigration and naturalization [nationality] act.