With the help of certain "growth" chemicals, they were able to transform the stem cells into "various cell lines and tissues, including beating human heart cells, " said Shoukhrat Mitalipov, a developmental biologist at Oregon Health and Science University in Portland, Ore.

WSJ: Experiment Brings Human Cloning One Step Closer

The hope is that arming rural communities with certain skill sets will help break a cycle of poverty, disease and malnutrition.

NPR: Guatemala Project Builds Tech from the Ground Up

Strong partnership with affected communities and trial volunteers will help make certain that they understand the risks and benefits of participation in HIV vaccine trials.

WHITEHOUSE: Office of National AIDS Policy Blog

She said that broader powers will only help IRS agents quickly identify particularly straightforward errors, like overstepping lifetime limits for a certain credit, but won't help with some of the more complicated issues.

WSJ: Lawmakers Consider Expanding IRS Power to Flag Errors Before Audits

While responsive design can help you achieve a certain measure of consistency across channels, the real prize lies with the ability to create unique experiences.

FORBES: Mobile Apps: The Trouble With Using 'Responsive Design'

The tax credit I provide will help employers cover catastrophic costs above a certain threshold -- costs incurred by a few retirees with the most of your health problems, costs that can run hundreds of thousands of dollars for a single person.

CNN: Clinton's September 17, 2007, speech on health care