All articles tagged with #x ray
Recent research suggests that the relationship between ultraviolet and X-ray emissions in quasars has changed over billions of years, challenging long-held assumptions about the uniformity of matter surrounding supermassive black holes and impacting methods used to study the universe's structure and evolution.
NASA's satellite observations of the pulsar J1023 reveal that its energy output is primarily powered by a pulsar wind colliding with nearby material, with polarization data indicating a coherent, ordered magnetic process near the star, challenging previous models and providing insights into neutron star evolution.
Researchers at the University of Surrey have developed an AI system that can predict future knee X-ray images and assess disease risk, potentially transforming osteoarthritis treatment by enabling earlier and personalized care. The system, trained on a large dataset, outperforms existing tools in speed and efficiency and could lead to similar innovations for other chronic diseases.
A 65-year-old woman in South Korea with osteoarthritis had gold threads inserted during acupuncture, which were visible on X-ray and posed potential health risks, highlighting concerns about the safety and efficacy of gold-thread acupuncture.
Routine X-rays for diagnosing knee osteoarthritis may do more harm than good by increasing patient anxiety and unnecessary surgeries; clinical diagnosis based on symptoms and medical history is safer and equally effective, reducing costs and exposure to radiation.
Lamar Jackson's foot injury was confirmed to be minor after X-rays showed no damage, and he is expected to recover quickly. The article also highlights rookie Teddye Buchanan's versatility in learning multiple linebacker positions, wide receiver Devontez Walker's growing confidence, and the supportive coaching influence of Zach Orr and Roquan Smith. Overall, the Ravens are optimistic about their players' health and development as the season approaches.
NASA's new composite image combines X-ray data from Chandra and radio data from ATCA to reveal detailed structures of the pulsar B1509-58 and its surrounding nebula, highlighting complex magnetic filaments and interactions with supernova debris, while also raising questions about the nature of the supernova blast wave.
NASA's IXPE has measured a high polarization degree in the black hole IGR J17091-3624, challenging existing theories about the behavior of matter near black holes and suggesting the presence of phenomena like matter winds or fast plasma outflows.
Diamondbacks' star outfielder Corbin Carroll was initially cleared of injury after X-rays but later diagnosed with a wrist chip fracture via MRI, leading to his placement on the injured list amid a series of injuries affecting the team.
Astronomers have discovered an unusual repeating long-period transient signal, ASKAP J1832-0911, emitting every 44 minutes from deep in the Galactic Plane, which does not match known stellar objects and may indicate new physics or stellar evolution models. The source's sudden activation and intense brightness, along with correlated X-ray emissions, deepen the mystery, prompting further observations to understand these enigmatic signals.
Astronomers discovered a mysterious object, ASKAP J1832-0911, 15,000 light-years away that emits both radio waves and X-rays in a pattern unlike any known object, challenging existing theories and suggesting the possibility of new physics or stellar evolution models.
An AI program called "CXR Lung-Risk" has been developed to analyze a single X-ray image and determine if a non-smoker is at high risk of developing lung cancer. The AI model was trained using thousands of chest X-rays from non-smokers and identified 28% as being at high risk. Of this high-risk group, nearly 3 in 100 developed lung cancer within six years, exceeding the minimum threshold for screening recommendations. This AI tool could enable opportunistic screening for never-smokers at high risk of lung cancer, who are currently excluded from federal guidelines.
X-ray analysis of a sword recovered from the Mediterranean Sea off the coast of Israel has revealed that its blade is bent, indicating possible use in a naval battle during the Crusades. The Newe-Yam sword, dating back to the twelfth or thirteenth century, is one of seven swords found in the country from this period. The loss of the weapon may have contributed to the knight's demise, as swords were typically recycled once they were no longer in use.
Scientists from the Argonne National Laboratory have developed a tool capable of scanning and identifying individual atoms using X-rays. Existing methods of measuring individual atoms could only resolve their presence but not identify them. By using synchrotron X-rays to excite core level electrons, researchers can determine the type of atom based on the energy level of the excited electron released. This technology has potential applications in detecting heavy metals, materials science, and quantum computing.
An international team of scientists has detected a sound from the supermassive black hole at the center of our Milky Way galaxy, which was emitted during an intense period of activity around 200 years ago. The X-ray echo detected reveals that the original intensity was at least a million times greater than the frequencies currently being emitted by the black hole. The scientists used NASA’s IXPE satellite to detect the directional polarization of this X-ray light with great precision and also determine its source, something that had previously proved impossible.