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Student Research: Ancient Mars Impacts Created Tornado-Like Winds That Scoured Surface

Plumes of vapor generated by ancient impacts on Mars created tornado-like winds possibly swirling at more than 500 miles per hour, which explain mysterious streaks seen near large impact craters on the Martian surface.

Using geological observation, laboratory impact experiments and computer modeling of impact processes, Brown University geologist Peter Schultz and doctoral candidate Stephanie Quintana, have offered a new explanation for how those streaks were formed. The researchers show that tornado-like wind vortices — generated by crater-forming impacts and swirling at 500 miles per hour or more — scoured the surface and blasted away dust and small rocks to expose the blockier surfaces beneath.

Graduate School Honors Econometrician

Guido W. Imbens is the 2017 recipient of the Horace Mann Medal. Imbens is an influential econometrician who teaches at Stanford University’s Graduate School of Business. The honor is bestowed annually to a Brown University Graduate School alumnus or alumna who has made significant contributions in his or her field.
He will be honored at Commencement on May 28, 2017.

Student Research: Copays Don’t Reduce Use of Medicare Home Health Care, Study Shows

In hopes of reducing Medicare spending, policymakers have proposed to charge seniors a copay for home-based care, figuring that senior citizens will use it less if it isn’t free. However, a new study in JAMA Internal Medicine by lead author Qijuan “Emily” Li, a public health doctoral student and others, casts doubt on that premise.

Sandstede Honored for Advising, Mentoring

Björn Sandstede received the 2016-17 Graduate School Faculty Award for Advising and Mentoring. At the May 1 Awards Ceremony, Dean Andrew G. Campbell saluted Sandstede, Professor of Applied Mathematics and Chair of the Division of Applied Mathematics, for fostering both a supportive culture within the division and networks within the discipline. The award honors a faculty member who has made a significant contribution as an advisor or mentor to graduate students.

GSC Honors Two Staff Members

Dr. Shontay Delalue and Robyn S. Schroeder '16 PhD are receiving Graduate Student Council awards for staff members who make a difference for graduate students.

Graduate School Attracts Larger PhD Cohort

Brown Graduate School will welcome 322 new doctoral students in the next academic year, with 42% coming from outside the U.S. The Graduate School accepted 11% of applicants to Brown's 51 doctoral programs, and the matriculating cohort is 5% larger than in the prior year. The new international PhD students come from 36 nations, with the largest number from China and India. Among the new domestic students, 23% self-identify as members of historically underrepresented groups (HUG). The number of HUG students doubled compared to a year earlier.