The esophagus isnt merely a tube for food traveling from the mouth to the stomach, it also provides an environment for bacteria to live, according to a new study by NYU School of Medicine scientists that overturns the general belief that the esophagus is free of bacteria.
"People thought that the esophagus wasnt hospitable to bacteria," says Martin J. Blaser, M.D., Frederick King Professor and Chairman of the Department of Medicine, and Professor of Microbiology, an author of the study. Bacteria were believed to move through the esophagus, the tube connecting the mouth to the stomach, as food-borne passengers on route to the stomach.
But the new study in the March 23 print issue of the Proceedings of the National Academy of Sciences demonstrates that bacteria do indeed live in the esophagus, and these microbes are a diverse bunch. "This study provides evidence for the first time that there are indigenous microbes in the human esophagus," says Zhiheng Pei, M.D., Ph.D., Assistant Professor of Pathology and Medicine, the studys lead author.
Pamela McDonnell | EurekAlert!
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DESY and MPSD scientists create high-order harmonics from solids with controlled polarization states, taking advantage of both crystal symmetry and attosecond electronic dynamics. The newly demonstrated technique might find intriguing applications in petahertz electronics and for spectroscopic studies of novel quantum materials.
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The Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) at the Large Binocular Telescope (LBT) in Arizona released its first image of the surface magnetic field of another star. In a paper in the European journal Astronomy & Astrophysics, the PEPSI team presents a Zeeman- Doppler-Image of the surface of the magnetically active star II Pegasi.
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Researchers at Chalmers University of Technology and the University of Gothenburg, Sweden, have proposed a way to create a completely new source of radiation. Ultra-intense light pulses consist of the motion of a single wave and can be described as a tsunami of light. The strong wave can be used to study interactions between matter and light in a unique way. Their research is now published in the scientific journal Physical Review Letters.
"This source of radiation lets us look at reality through a new angle - it is like twisting a mirror and discovering something completely different," says...
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