No. You may claim an income tax deduction for each year in which you make a gift to your donor advised fund, but you may not claim a deduction for the amounts the donor advised fund later distributes to Yale or other charities.
Yes. When you recommend distributions from your donor advised fund, you'll be able to recommend a particular use for the funds – for example, to support Yale's educational programs or help fund research in a particular medical field. Note, however, that you may not exercise control over the use of the funds once they are in the hands of Yale or another charity.