Amid the morning bustle of Penn's campus yesterday, students stopped to remember the terrible events on another college campus one year ago. To commemorate the one-year anniversary of the shootings at Virginia Tech, the Undergraduate Assembly organized a campus-wide moment of silence at 11 a.

Sometimes Diana Ark just wants a breather. Yes, Wharton keeps its freshmen busy with a steady diet of group meetings and projects. But, unlike her classmates, Ark has to juggle two additional commitments: She's found time to play on both the varsity softball and fencing teams.

Psychology has traditionally targeted mental illness, but Psychology professor Martin Seligman is trying to turn this focus to "mental wellness." Seligman, who is considered the father of positive psychology and serves as the director of Penn Positive Psychology Center, continues to draw international attention to his theory of positive psychology.

Last April's shooting at Virginia Tech prompted a push for universities to revamp their emergency-notification systems. Now, there's a push from Congress to continue emergency alerts - but faster. A bill proposed in the U.S. House of Representatives would require colleges to implement their emergency-notification systems within 30 minutes of confirming that alert was necessary.

From supposed sniper fire in Bosnia to comments about "bitter" Americans, Sens. Hillary Clinton and. Barack Obama have dealt with several campaign mishaps in recent weeks. In this primary season's 21st debate at the National Constitution Center last night, ABC moderators Charles Gibson and George Stephanopoulos wouldn't let them forget that fact.

The substance of last night's presidential debate at the National Constitution Center appears unlikely to change the tone or dynamic of the race, with five days before Pennsylvania's primary. After the debate, campaign officials were busy responding to questions about mistakes their candidates have made in recent weeks - which were featured prominently in the debate.

"Come on now, you're better than that!" bellowed a voice from the corner of the Penn dugout in the bottom of the fifth inning. The play itself was inconsequential - merely an ugly hack by sophomore Matt Toffaletti on an off-speed pitch. But the sentiment was significant.

Surveying your very own tour guides is about as unbiased as holding a Russian election. Sure it's democratic, but we all know how it's going to turn out. The Admissions office should have known better than to send the annual Princeton Review questionnaire to its student ambassadors from the Kite and Key Society.

Twice a year, Penn safety personnel who act on behalf of students, faculty and staff with outstanding bravery and dedication are publicly recognized by colleagues and student organizations, illustrating a campus-wide appreciation. Leading the way, University President Amy Gutmann welcomed the nearly 100 uniformed officers and student heroes to receive awards at the Division of Public Safety Commendations ceremony and the Penn Police Department Oath of Office ceremony last night.

Hospitals are in the business of curing what ails their patients, but in 2006 about 19 out of every 1,000 patients developed an infection while being treated at Pennsylvania hospitals. This data, released last Thursday by the Pennsylvania Health Care Cost Containment Council, is the group's second state-wide report on hospital-acquired infections.

Baseball coach John Cole called the entire weekend against Cornell a "big downer." Penn was shaken up to the tune of three losses in four games amid rain delays, extra innings and a hailstorm of Big Red offense, which poured on 36 runs to the Quakers' 19.

Penn Previews is the time for the University to make its best impression on accepted students - and their parents. Which leads us to wonder why administrators would want to hold one of the Penn Preview days on the Friday of Spring Fling. Seeing college students drinking at 10 a.

U.S. Sen. Arlen Specter (R-Pa.) announced yesterday that he has been diagnosed with a recurrence of Hodgkin's disease, a cancer of the lymphatic system. Specter, whose term ends in 2010, expects to remain in office and continue re-election efforts, he said in a statement.

Security officials restricted entrance into Harnwell College House last night at about midnight as authorities investigated a suspicious material that was found on the building's 14th floor. After on-site testing, and analysis, the substance was found not to be hazardous.

Former Law student Joseph Cho, accused of trying to kill his neighbors last January, was again found mentally competent to stand trial yesterday. Cho allegedly discharged 15 shots into the door of his neighbors' apartment in January 2007. The neighbors were two male Drexel University students who Cho believed were spies.

Mayor Michael Nutter's first 100 days in office have been anything but uneventful. He has the sizable task of managing a city that has seen its share of crises in recent years. He became Philadelphia's mayor amid some criticism, but if the reception he got after arriving on campus yesterday was any indication, many members of the Penn community stand firmly behind Nutter.

"It's a once in a lifetime opportunity to see China and the Olympics," said College sophomore Dennis Murphy, who is going on the Penn-in-Beijing program this summer. The summer abroad program - run by the Center for Global Communication Studies at the Annenberg School for Communication - is centering its second-annual program and its courses around the fact that the Olympics will be in Beijing later in the summer.