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Factors associated with missed vaccination during mass immunization campaigns 

Achieving a high percentage of vaccination coverage with polio vaccine, while necessary, is not sufficient to eliminate or eradicate polio. The...

Value and Limitations of Target-Vessel Ischemia in Predicting Late Clinical Events After Drug-Eluting Stent Implantation 

Drug-eluting stents reduce clinical events related to restenosis but may be complicated by late stent-thrombosis. Whereas assessment of...

Interrogation, then and now 

By PETER WEISS

LAST OCTOBER I attended a reunion of World War II veterans who worked at a secret prisoner-of-war interrogation...

Cellular contortionist: can DNA easily get bent out of shape? 

Even when biophysicist Paul Wiggins pursues his favorite sport, rock climbing, he doesn't leave his work behind. While struggling to untangle...

What a flake: computers get the hang of ice-crystal growth 

With a camera-equipped microscope of his own making, Kenneth G. Libbrecht shoots some of the world's most stunning photographs of snowflakes. Since...

Crusty old computer: new imaging techniques reveal construction of ancient marvel 

Scientists say that they have figured out the arrangement and functions of nearly all the parts of a mysterious mechanical gadget that was...

Unstoppable bot: armed with self-scrutiny, a mangled robot moves on 

Severe maulings hardly slowed down the robotic assassins in the Terminator science fiction movies. Now, roboticists have made a real machine that...

Ballot roulette: computer scientists and mathematicians look for better ways to vote 

Two months ago, in primaries for governor and congressional and state legislative seats in Maryland, many trips to the polls became painful...

Fit to be tied: impatience with string theory boils over 

Jazz musician Ken Hatfield entitled his compact disc released in June String Theory. A quilt-maker, Denyse Schmidt, offers quilts with the same...

Cyber attack depletes cell phone batteries 

Bad guys armed with computers might remotely and secretly drain the batteries of cell phones, a new study shows. By commandeering communications...