Many training funding mechanisms (ie. NIH Training Grants, Fellowship awards, & Career Grants/"K-awards") are not allowed to fund non-residents [1]. Funding international students is a difficult problem for most PhD programs in the life sciences. I don't have direct experience in physical/social sciences, but I believe similar restrictions apply to NSF funds.
I believe most PhD programs cover international students using a mixture of direct project funds (ie. an NIH R01, the same grant that covers reagents/equipment), private fellowships, and endowment money.
Many training funding mechanisms (ie. NIH Training Grants, Fellowship awards, & Career Grants/"K-awards") are not allowed to fund non-residents [1]. Funding international students is a difficult problem for most PhD programs in the life sciences. I don't have direct experience in physical/social sciences, but I believe similar restrictions apply to NSF funds.
I believe most PhD programs cover international students using a mixture of direct project funds (ie. an NIH R01, the same grant that covers reagents/equipment), private fellowships, and endowment money.
1 -- http://www.niaid.nih.gov/researchfunding/sop/pages/foreignwo...