3Qs: Pros and cons of celebrity endorsements

Bruce Clark, asso­ciate pro­fessor of mar­keting in the D’Amore-McKim School of Busi­ness, exam­ines how com­pa­nies respond to scan­dals involving their celebrity part­ners, and how social media have changed the land­scape for these busi­ness decisions.

3Qs: Free speech in the digital age

Dale Her­beck, pro­fessor and chair of the Depart­ment of Com­mu­ni­ca­tion Studies, says the Internet, glob­al­iza­tion, and the speed at which tech­nology evolves has raised many ques­tions regarding the law, freedom of expres­sion, and privacy.

3Qs: ‘Driving’ a new pair of arms

Learning how to con­trol a new pair of arms would be like learning how to drive a car, says Christo­pher Hasson, a sen­so­ri­motor con­trol expert and a newly appointed assis­tant pro­fessor in the depart­ment of phys­ical therapy.

3Qs: Gender equality in the military

Lifting the military’s offi­cial ban on women in combat had been high on the agenda of many women’s advo­cacy groups, says Martha Davis, women’s rights expert and pro­fessor of law.

3Qs: Health in America

Katherine Tucker, pro­fessor of nutri­tional epi­demi­ology in the depart­ment of Health Sci­ences and coau­thor of a new text­book on nutri­tion and dis­ease, says that fol­lowing a healthy diet could pre­vent dia­betes, heart dis­ease, and many forms of cancer.

3Qs: What’s next for Lance Armstrong?

Road racing cyclist Lance Arm­strong has report­edly admitted to using per­for­mance enhancing drugs in an exclu­sive inter­view with Oprah Win­frey. We asked a trio of experts to explain how this news will affect him in the court of law and public opinion.

3Qs: Doomsday predictions debunked

Toyoko Ori­moto, an assis­tant pro­fessor of physics, says that we should be more con­cerned with cli­mate change than judg­ment day, which the Mayan cal­endar pre­dicts will take place on Friday.