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Pubblicato il 14/01/2013Read time: 1 min

Researchers in economy and computer science at Wake Forest University used an online computer game to simulate the spread of an infectious disease, in order to understand why less than half of the American population has gotten a vaccination against flu, in spite of the severe outbreaks reported this season.

Their study is the first one in economic epidemiology which makes use of virtual diseases to address important issues in the development of preventive healthcare strategies. “Our research shows that to prevent an epidemic, there is a need to tailor a menu of options for different kinds of people,” said Frederick Chen, first author of the article which described the work, published on January on PLoS ONE.

The multiplayer game allowed to test behavior that could not be tested in real life, since it is not possible to give some people treatment and others not. Thanks to this simulation, researchers concluded that if the cost of self-protection is higher, people are more inclined to take a risk, trying to see if they can stay healthy without paying for the vaccination. The model also showed that the number of those who chose to protect themselves increased as the number of people infected around them.

http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0052814

An economic game to improve disease prevention

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Prevention

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Discovered a New Carbon-Carbon Chemical Bond

di Chiara D'Errico

Pubblicato il 16/10/2024

A group of researchers from Hokkaido University has provided the first experimental evidence of the existence of a new type of chemical bond: the single-electron covalent bond, theorized by Linus Pauling in 1931 but never verified until now. Using derivatives of hexaarylethane (HPE), the scientists were able to stabilize this unusual bond between two carbon atoms and study it with spectroscopic techniques and X-ray diffraction. This discovery opens new perspectives in understanding bond chemistry and could lead to the development of new materials with innovative applications.

In the cover image: study of the sigma bond with X-ray diffraction. Credits: Yusuke Ishigaki

Chemistry

After nearly a year of review, on September 25, a study was published in Nature that has sparked a lot of discussion, especially among chemists. A group of researchers from Hokkaido University synthesized a molecule that experimentally demonstrated the existence of a new type of chemical bond, something that does not happen very often.