Night owls have more grey matter in their brains than early birds
Being a late-riser suggests you could have more grey matter in your brain, a study from Brunel University London has shown.
Being a late-riser suggests you could have more grey matter in your brain, a study from Brunel University London has shown.
Plants & Animals
Jun 11, 2020
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954
Researchers at the Center for Quantum Nanoscience (QNS) within the Institute for Basic Science (IBS) at Ewha Womans University have made a major scientific breakthrough by performing the world's smallest magnetic resonance ...
Quantum Physics
Jul 1, 2019
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3
Spanish researchers have designed what they believe to be a new type of magnetic cloak, which shields objects from external magnetic fields, while at the same time preventing any magnetic internal fields from leaking outside, ...
General Physics
Sep 23, 2011
14
0
(Phys.org) —In recent years, cancer researchers have been developing agents that destroy the blood vessels surrounding tumors with the goal of starving tumors to death. Some of these agents, such as tumor necrosis factor-alpha ...
Bio & Medicine
Jul 15, 2013
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0
(AP) -- Mind reading may no longer be the domain of psychics and fortune tellers - now some computers can do it, too.
Hi Tech & Innovation
Apr 8, 2010
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Researchers at MIT and Boston Children's Hospital have developed a system that can take MRI scans of a patient's heart and, in a matter of hours, convert them into a tangible, physical model that surgeons can use to plan ...
Computer Sciences
Sep 17, 2015
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4862
(PhysOrg.com) -- Researchers at the National High Magnetic Field Laboratory's Pulsed Field Facility at Los Alamos National Laboratory have set a new world record for the strongest magnetic field produced by a nondestructive ...
General Physics
Aug 23, 2011
5
0
Long-duration space flight alters fluid-filled spaces along veins and arteries in the brain, according to new research from Oregon Health & Science University and scientists across the country.
Space Exploration
May 5, 2022
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163
A large team of researchers with members from Belgium, Russia, and Germany has found that people who spend a long time aboard the International Space Station experience an increase in the size of some of their brain ventricles. ...
Walking past a corner bakery, you may find yourself drawn in by the fresh smell of sweets wafting from the front door. You're not alone: The knowledge that humans make decisions based on their nose has led major brands like ...
Evolution
Aug 26, 2021
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989
Magnetic Resonance Imaging (MRI), or nuclear magnetic resonance imaging (NMRI), is primarily a medical imaging technique most commonly used in radiology to visualize the internal structure and function of the body. MRI provides much greater contrast between the different soft tissues of the body than computed tomography (CT) does, making it especially useful in neurological (brain), musculoskeletal, cardiovascular, and oncological (cancer) imaging. Unlike CT, it uses no ionizing radiation, but uses a powerful magnetic field to align the nuclear magnetization of (usually) hydrogen atoms in water in the body. Radio frequency (RF) fields are used to systematically alter the alignment of this magnetization, causing the hydrogen nuclei to produce a rotating magnetic field detectable by the scanner. This signal can be manipulated by additional magnetic fields to build up enough information to construct an image of the body.:36
Magnetic Resonance Imaging is a relatively new technology. The first MR image was published in 1973 and the first cross-sectional image of a living mouse was published in January 1974. The first studies performed on humans were published in 1977. By comparison, the first human X-ray image was taken in 1895.
Magnetic Resonance Imaging was developed from knowledge gained in the study of nuclear magnetic resonance. In its early years the technique was referred to as nuclear magnetic resonance imaging (NMRI). However, as the word nuclear was associated in the public mind with ionizing radiation exposure it is generally now referred to simply as MRI. Scientists still use the term NMRI when discussing non-medical devices operating on the same principles. The term Magnetic Resonance Tomography (MRT) is also sometimes used.
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