3Qs: Life after the Olympics

Jus­tine Siegal of Sport in Society says early prepa­ra­tion and a strong sense of self can help Olympic ath­letes lead suc­cessful lives long after their playing days are over.

3Qs: The future of the Affordable Care Act

Pro­fessor Kristin Madison exam­ines the poten­tial out­comes of the Supreme Court’s upcoming ruling on Pres­i­dent Obama’s sig­na­ture health-​​care legislation.

3Qs: Analyzing the cybersecurity threat posed by hackers

Themis Papa­george, an asso­ciate clin­ical pro­fessor of com­puter and infor­ma­tion sci­ence, exam­ines the cyber­se­cu­rity threat posed by al-​​Qaida and Anony­mous, a global group of hackers.

3Qs: Evaluating U.S.-Afghanistan relations

Kim­berly Jones, a fac­ulty asso­ciate in North­eastern University’s Middle East Center for Peace, Cul­ture and Devel­op­ment, ana­lyzes Pres­i­dent Barack Obama’s visit to Afghanistan on the eve of the one-​​year anniver­sary of the killing of Osama bin Laden.

Redesigning Boston’s North End

Civil engi­neering stu­dents cre­ated an inno­v­a­tive solu­tion for lim­iting the neighborhood’s traffic prob­lems and pedes­trian congestion.

Teaching the language of baseball

North­eastern Uni­ver­sity junior Roberto Lavin tutored prospects in the Dominican Base­ball Academy run by the Boston Red Sox, which will host their Opening Day at Fenway Park today.

3Qs: ‘Leaping’ into the realm of science

Today is Feb. 29, the extra day we add to the cal­endar in leap years. But why do we need this extra day, and what is the sci­ence behind it? And what about the lesser-​​known leap second – which del­e­gates from more than 70 nations recently debated whether to abolish? We asked Murray Gibson, dean of the Col­lege of Sci­ence, to answer these ques­tions – as well as how early sci­en­tists dis­cov­ered the need to adjust the calendar.