“And let’s get to work!” announced Matthew J. Davis ’16 at the conclusion of his first speech as president of the Undergraduate Association. The rare half-second pauses in his delivery would have likely been polished out had he had an extra month to prepare for the moment, but no such luck — embattled former president Shruti Sharma ’15 resigned a month early during Wednesday’s UA Council meeting, sweeping him and vice president-elect Sophia Liu ’17 into office within a week of their election. Davis said he learned of the pending transfer Monday at 11 p.m.

A 32-year-old woman living in France has provided Inside Higher Ed with records of sexually explicit messages from former professor Walter Lewin — the same materials that she had sent to MIT and which had served as the basis for a sexual harassment investigation that led to the revocation of Lewin’s emeritus title and the removal of his popular online physics lecture videos.

Walter Lewin, the former MIT professor with whom the Institute severed ties last month over a sexual harassment probe, appears to have publicly tweeted sexually suggestive and explicit comments to fans of his popular online physics lecture videos.

Megan Smith ’86, chief technology officer of the United States and a former Google executive, will be MIT’s commencement speaker for the Class of 2015.

The national organization of Lambda Chi Alpha announced Thursday that it had suspended the MIT chapter of LCA for at least five years. The MIT News Office said that the brothers of the fraternity would be required to move out by Sunday and that the building would close.

The Tech received an email from William A. Frezza ’76 a bit over a week ago containing a submission to our opinion section asserting, “Drunk coeds represent the gravest threat to fraternities.” Identifying himself as the “president of the alumni house corporation” of MIT Chi Phi, he portrayed female undergraduates as the true cause of accidents at fraternities, universally hapless beings unable to consume alcohol responsibly, and a steady source of “false rape accusations.”

When Boston decided to impose a 49-person limit on gatherings at MIT fraternities, sororities, and independent living groups in the city last week, MIT extended the restriction to those in Cambridge and Brookline to “maintain equity among the FSILGs during new member recruitment,” according to Matthew D. Bauer, a spokesman for the Division of Student Life.

President L. Rafael Reif emailed the MIT community last Friday afternoon to announce that chemistry graduate student Austin L. Travis, 26, had died Wednesday, Sept. 3.

President L. Rafael Reif emailed the MIT community Friday afternoon to announce that chemistry graduate student Austin Travis, 26, had died Wednesday.

A student not affiliated with MIT fell from a window at the MIT chapter of the Lambda Chi Alpha fraternity at about 11:30 p.m. on Sunday and sustained injuries of unspecified severity according to Kimberly Allen of the MIT News Office.