swim2109:
To be honest, not a ton you can do. You can conceivably send an update letter or letter of continued interest. You would include content that can cover what, if anything, has changed about your profile since the time you applied. You can also mention that you remain committed to the school, though that rarely carries much weight.
It could also be helpful if you speak to a current student or alumnus and can have one of them send in a note of reference.
Other than that, the decision is kind of out of your hands.
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Admissionado