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A team of European astronomers led by Professor Kalliopi Dasyra of the National and Kapodistrian University of Athens, Greece, under the participation of Dr. Thomas Bisbas, University of Cologne modeled several emission lines in the Atacama Large Millimeter Array (ALMA) and the Very Large Telescope (VLT). ) observations to measure gas pressure in jet-affected clouds and surrounding clouds. With this unprecedented measurement, published recently in Natural Astronomy , they found that the bursts significantly changed the internal and external pressures of the molecular cloud in its path. Depending on which of the two pressures changes the most, both cloud compression and star formation triggers and cloud dissipation and star formation delays are possible in the same galaxy. “Our results suggest that supermassive black holes, even though they are located at the center of galaxies, can influence star formation across galaxies” said Professor Dasyra, adding that “study...

Credit: Public Domain CC0 A team of European astronomers led by Professor Kalliopi Dasyra of the National and Kapodistrian University of Athens, Greece, under the participation of Dr. Thomas Bisbas, University of Cologne modeled several emission lines in the Atacama Large Millimeter Array (ALMA) and the Very Large Telescope (VLT). ) observations to measure gas pressure in jet-affected clouds and surrounding clouds. With this unprecedented measurement, published recently in Natural Astronomy they found that the bursts significantly changed the internal and external pressures of the molecular cloud in its path. Depending on which of the two pressures changes the most, both cloud compression and star formation triggers and cloud dissipation and star formation delays are possible in the same galaxy. “Our results show that supermassive black holes, even though they are located at the center of galaxies, can influence star formation a...

Summary: Researchers reveal how astronauts can avoid the neuromuscular problems that occur as a result of extended space travel. Source: Doshisha University Among the many functions performed by skeletal muscles, one of them is maintaining our posture. If it weren’t for these muscles, the gravitational pull of the earth might make it difficult for us to get up and walk. The group of muscles—mostly in our legs, back and neck—that are responsible for maintaining posture and allowing us to move against the force of gravity are called ‘anti-gravity’ muscles. But what happens to these muscles when there is no gravity (or “unloading” force of gravity) to counteract them? That question may sound silly to some, but not to an astronaut on the International Space Station (ISS)! In space, where gravity is minimal, our muscles (especially anti-gravity ones) are not used much, which can lead to atrophy and changes in their structure and properties. In fact, human ca...

CAMBRIDGE, MA – Receptors found on the surface of cells bind to hormones, proteins, and other molecules, helping cells respond to their environment. MIT chemists have now discovered how one of these receptors changes its shape when it binds to its target, and how that change triggers cells to grow and reproduce. This receptor, known as the epidermal growth factor receptor (EGFR), is overexpressed in many cancers and is the target of several cancer drugs. These drugs often work well at first, but tumors can become resistant to them. Better understanding the mechanism of these receptors could help researchers design drugs that can circumvent that resistance, said Gabriela Schlau-Cohen, a professor of chemistry at MIT. “Thinking about more general mechanisms for targeting EGFR is an exciting new direction, and gives you new avenues for thinking about possible therapies that may not develop resistance easily,” he said. Schlau-Cohen and Bin Zhang, Pfizer-Laubach Assistant Prof...