By DARINA SHTRAKHMAN Staff Writer shtrakhman@dailypennsylvanian.com High-school seniors are used to checking their mailboxes for college admissions decisions, but this year, a letter from Penn may not have arrived. For the first time, the admissions office chose not to send rejection letters, Dean of Admissions Eric Furda said.

Tweet! - your U.S. Senator has a message. Students are following their favorite politicians' real-time thoughts on the social-networking site Twitter. Arizona Sen. John McCain, who admitted last year during the campaign to having never sent or received an e-mail, is now tweeting many times a day to his 341,720 followers.

Penn researchers received $1.7 million from Bill and Melinda Gates Foundation to organize and share the database resources on parasite genomes. David Roos, the E. Otis Kendall Biology professor, will lead this project. According to Roos, scientists have accumulated a large amount of genomic data.

Robbery March 25 - A woman unaffiliated with the University, 28, reported at about 1:30 a.m. that an unknown suspect took her money at gunpoint on the 4000 block of Spruce Street, before fleeing in an unknown direction. March 26 - A man unaffiliated with the University, 19, reported that a group of unknown males displayed a handgun and a knife, robbed him of cash and personal property, then fled north on 41st Street.

Yesterday, ten talented engineering students strutted their stuff and fought a battle of wits in the ARCH auditorium in an attempt to win the coveted title of Mr. or Ms. SEAS. The event was organized by the Engineering Student Activity Council and consisted of a walk-off, a talent show, a question-and-answer section and a date auction for the five male and five female contestants.

As advance registration comes to a close this weekend, students will have one more chance to register for courses on the old Penn InTouch system. This June, Penn InTouch will finally get an extreme makeover two years in the making. During that time, Student Registration and Financial Services "refreshed" the Penn InTouch online system with the help of Information Services and Computing and two advisory committees.

April 4, 11:30 a.m. Last night, the Nominations and Elections Committee announced newly elected members of the Undergraduate Assembly and Class Boards. College junior Rachel Levick of the NEC also announced that a record 49.77 percent of undergraduates voted online through Penn InTouch.

The Class of 2013 will have one less option to choose from when requesting a housing assignment for next year. According to the College Houses and Academic Services Web site and an e-mail sent to the Kite & Key tour-guide listserv, Rodin College House will stop admitting freshmen temporarily.

The new kid on the online food-ordering block is now GrubHub.com, which went live for Philadelphians last week. GrubHub aims to provide a comprehensive list of restaurants' menus while also working with some restaurants to streamline their delivery and pickup business through online ordering.

Last night, the students in Accounting professor Victor Defeo's Managerial Accounting class were the victims of an April Fool's Day prank. At 9:22 p.m., an e-mail was sent to the course's listserv from what appeared to be Defeo's Wharton e-mail address saying that, because a number of students were discovered to have cheated on the last exam, all students enrolled would be required to take a make-up exam this Saturday at 10 a.

Huntsman Hall was host last night to "Mental Health Camp," a program designed to "show that everyone could use a little help," according to College junior and Reach-A-Peer Line President Jordan Coello. The event, now in its second-annual installation, was the result of collaboration between a variety of mental-health and minority groups on campus.

The Undergraduate Assembly is beginning work on an initiative to add American Sign Language to the list of courses that can fulfill Wharton's foreign-language requirement. The initiative - headed by Wharton and Nursing sophomore and Undergraduate Assembly volunteer member G.

While other groups on campus have seen recent pullbacks in spending and drops in funding, Penn's Big Brothers Big Sisters program is growing more robustly than ever. The five-year-old organization received its largest number of applicants this semester, bringing up its "matches" between Bigs and Littles to 300 so far this spring, according to Penn student director and College senior Eileen McKeown.

The Graduate and Professional Student Assembly passed a resolution March 25 to raise awareness among students and faculty about the Grassley-Sanders Amendment to the federal stimulus bill. The amendment, passed by the Senate unanimously in February, places restrictions on the hiring of foreign workers holding H-1B visas by companies receiving Troubled Asset Relief Program funding.

Domenique Wilson, the suspect in the home invasion and sexual assault at 44th and Spruce streets last December, allegedly attempted to break out of prison in Feb. On Feb. 20, the 23-year-old tried to escape from his segregation cell at the Clinton County Correctional Facility, according to Warden Tom Duran.

For the most of the class of 2013, gaining the coveted Ivy League acceptance was tougher than ever. But for two Ivy League schools, Penn included, the acceptance rate increased -- Penn's rate went from 16.4 percent last April to 17.1 percent this year. Princeton's rate also rose slightly, from 9.

2008 college alumnus Alexander McCobin has been sued by Perspectives Debate Inc. for breaching his fiduciary duty to Perspectives and misappropriating its funds, including allegedly withdrawing more than $37,000 from its bank account.