SciTech in a Flash SciTech in a Flash

Dr. Munshi-South, associate professor of biological sciences at Fordham University joins host Hari Sreenivasan to discuss the evolutionary changes of rats and rodents in New York City. Researchers have been trapping rats and extracting their DNA to learn more about their evolutionary origins and interactions with urban environments. Dr. Munshi-South explains that rats have a wide range of genetic diversity and how rats located in one city may be biologically different than those of another city.

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Justin Cappos, associate professor of computer science and engineering at New York University’s Tandon School of Engineering, explains the importance of securing software update systems. He details his project The Update Framework (TUF), which can help web developers secure new or existing software update systems, which are often found to be vulnerable to many know cyberattacks.

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How do dogs recognize each other or gain an understanding of the world around them? Alexandra Horowitz, a leading researcher in dog cognition and author of “Being a Dog: Following the Dog into a World of Smell,” joins host Hari Sreenivasan to explain how smells change a dog’s perception in surprising ways.

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Our bodies have adapted over time to the conditions in which we live. Now scientists at the Pennsylvania State University Center for Quantitative Imaging are imaging and examining bones to see what they reveal, not only about our ancestors but about our lifestyles and eating habits. We’ll explore what your bones may reveal about you.

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A lab at The Wake Forest Institute for Regenerative Medicine in Winston-Salem, North Carolina, is printing organs using human cells in a biodegradable frame allowing for nerves and blood vessels to grow into the organ and function normally. We go inside this lab that is bringing the science of regenerative medicine to a new level.

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Polar scientist Marco Tedesco of Columbia University’s Earth Institute joins host Hari Sreenivasan to discuss how warmer winters are affecting our planet. He explains that Earth’s Polar Regions are sensitive enough that a difference of one degree can thaw ice, resulting in rises in sea levels and global implications. Tedesco also explains how we might slow the acceleration we are seeing by cooling down the planet.

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