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Archive for category Science

Absurd Creature of the Week

Wired’s Absurd Creature of the Week,┬áthe pink fairy armadillo:

Mariella Superina/Paul Vogt

Mathematical Equation to Predict Happiness

The happiness of over 18,000 people worldwide has been predicted by an equation developed by researchers at UCL, with results showing that moment-to-moment happiness reflects not just how well things are going, but whether things are going better.

The happiness of over 18,000 people worldwide has been predicted by a mathematical equation developed by researchers at UCL, with results showing that moment-to-moment happiness reflects not just how well things are going, but whether things are going better than expected.

The new equation accurately predicts exactly how happy people will say they are from moment to moment based on recent events, such as the rewards they receive and the expectations they have during a decision-making task. Scientists found that overall wealth accumulated during the experiment was not a good predictor of happiness. Instead, moment-to-moment happiness depended on the recent history of rewards and expectations. These expectations depended, for example, on whether the available options could lead to good or bad outcomes.

As part of the Great Brain Experiment smartphone app, users are periodically asked how happy they feel. Credit: Robb Rutledge, UCL

 

Read the entire story at Science Daily

Researchers regrow corneas from an adult human stem cell

This is a restored functional cornea following transplantation of human limbal stem cells to limbal stem cell-deficient mice.
Credit: Kira Lathrop, Bruce Ksander, Markus Frank, and Natasha Frank.

Boston researchers have identified a way to enhance regrowth of human corneal tissue to restore vision, using a molecule known as ABCB5 that acts as a marker for hard-to-find limbal stem cells. This work, a collaboration between the Massachusetts Eye and Ear/Schepens Eye Research Institute (Mass. Eye and Ear), Boston Children’s Hospital, Brigham and Women’s Hospital and the VA Boston Healthcare System, provides promise to burn victims, victims of chemical injury and others with damaging eye diseases. The research, published this week in Nature, is also one of the first known examples of constructing a tissue from an adult-derived human stem cell.

Visit Science Daily to read the entire story.