The most fundamental concern of the MIT community must, of necessity, be its own health. If we are to maintain this essential component of the university, we must first understand the system, what works, and what needs improvement. The purpose of this special section of The Tech is to explore the wide range of health issues at MIT, mental health chief among them.

The Biodiesel@MIT project, which aimed to reprocess used vegetable oil from campus dining facilities into eco-friendly biodiesel fuel to power the Tech and SafeRide shuttles, appears to have called it quits earlier this week, after running into a series of difficulties acquiring space and growing costs.

Two-thirds of the 1,554 students admitted to the Class of 2012 have accepted MIT’s offer of admission. This year’s 66 percent yield is the third highest in MIT’s history, and only a slight drop from last year’s record high 69 percent yield.

The gas main which feeds NW30 was broken at 2:30 p.m. yesterday by employees of Bond Brothers working on the NW35 project. As a precaution, buildings NW21 and NW30 were evacuated by the Cambridge Fire Department. The workers were installing a storm drain when they broke the main. By 3:04 p.m., occupants were allowed back in to both buildings. During the leak, NW30 lost gas for a brief period of time. The “all clear” was issued around 4 p.m., according to Ruth T. Davis, Communications Manager of MIT’s Department of Facilities.