Engineering

Cell Polarity and Chirality: Human endothelial cells on a micropatterned ring (inner diameter: 250 mm, width: 200 mm) stained for actin (red), tubulin (green), and nuclei (blue). Cells form a ‘rightward’ chiral alignment, while polarized by positioning their centrosomes (bright green) rather than cell nuclei closer to each boundary.

A team of researchers led by Gordana Vunjak-Novakovic has developed a new technique to evaluate human stem cells using cell micropatte
Two Columbia News videos will air this month on NYC TV, the official television network of New York City.
 
If we think of the atmosphere as a sponge, we can imagine that the sponge is very dry in the western US, and almost full over humid regions in the eastern US. The addition of moisture to the atmosphere from the land surface in these humid regions makes the sponge leak (makes rain fall). In the west, the dry sponge soaks up any moisture the land surface can contribute without initiating rainfall: rainfall in the west is only initiated by other mechanisms. Credit: Kirsten Findell, NOAA/GFDL
A team of researchers from Columbia Engineering, Geophysical Fluid Dynamics Laboratory, and Rutgers University has now demonstrated that evaporation from the land surface is able to modify summertime rainfall east of the Mississippi and in the monsoonal region in the southern U.S.
At age 5, Morris Kaunda Michael fled with his family from war-torn Sudan for a refugee camp in northern Kenya.
Abnormalities in cardiac conduction — the rate at which the heart conducts electrical impulses to contract and relax — are a major cause of death and disability around the world.
 
Researchers at Columbia Engineering School lead by Professor 
Researchers at Columbia Engineering have established a new method to patch a damaged heart using a tissue-engineering platform that enables heart tissue to repair itself.

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