Growing Human Organs
Researchers at M.I.T. have taken a step toward replicating organs by discovering a way to make "building blocks" containing different kinds of tissue that can be put together.
Embryonic stem cells can turn into virtually any type of cell in the body. But controlling this process, known as differentiation, is tricky. If embryonic stem cells are left to grow in a tissue-culture dish, they will differentiate more or less at random, into a mixture of different types of cells. The M.I.T. group, led by Ali Khademhosseini, an assistant professor in the Harvard-M.I.T. division of Health Sciences and Technology and a recipient of a TR35 award in 2007, put embryonic stem cells into "building blocks" containing gel that encouraged the cells to turn into certain types of cell.
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A new study explores how certain personality traits affect individuals' attitudes on obesity in others.
- The study compared personality traits and obesity views among more than 3,000 mothers.
- The results showed that the personality traits neuroticism and extraversion are linked to more negative views and behaviors related to obesity.
- People who scored high in conscientiousness are more likely to experience "fat phobia.
The rise of anti-scientific thinking and conspiracy is a concerning trend.
- Fifty years later after one of the greatest achievements of mankind, there's a growing number of moon landing deniers. They are part of a larger trend of anti-scientific thinking.
- Climate change, anti-vaccination and other assorted conspiratorial mindsets are a detriment and show a tangible impediment to fostering real progress or societal change.
- All of these separate anti-scientific beliefs share a troubling root of intellectual dishonesty and ignorance.
The history of the Geneva Conventions tells us how the international community draws the line on brutality.
- Henry Dunant's work led to the Red Cross and conventions on treating prisoners humanely.
- Four Geneva Conventions defined the rules for prisoners of war, torture, naval and medical personnel and more.
- Amendments to the agreements reflect the modern world but have not been ratified by all countries.
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