http://graphics8.nytimes.com/images/misc/nytlogo152x23.gifBy D. D. Guttenplan. ISTANBUL — Which European country sends more students to U.S. universities than any other? Is it Britain, which shares a common language and a reverence for ancient collegiate campuses? Or Germany, whose great research universities did so much to shape U.S. higher education? The answer, it turns out, is neither. Though Britain sent more than 9,000 students to the United States last year — more than ever before — and Germany sent about 9,300, both lagged behind Turkey, which has been sending more than 10,000 students a year to the United States since 2000. Read more...