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4 hours ago · The 50-year-old Wilhelm Röntgen was the head of the physics department at the University of Würzburg in Bavaria, and it was there that he made his revolutionary discovery of x-rays, a discovery with important ramifications in medicine and the sciences. The Crookes Tube. One of the key pieces of equipment used by Röntgen and others was the ...
4 hours ago · “Essentially, in addition to a promising material sample, all you really need is special X-rays,” explains Dr. Simon Moser, the project lead from JMU Würzburg. “The required light particles should be high-frequency and circularly polarized, meaning they possess angular momentum. This can be achieved using any synchrotron light source.
1 day ago · The reverse process, pair production, is the dominant mechanism by which high-energy photons such as gamma rays lose energy while passing through matter. That process is the reverse of "annihilation to one photon" allowed in the electric field of an atomic nucleus.
4 hours ago · Conclusion: HMME-PDT is a safe and effective method for the treatment of PWS. CDFI examination appears to be a promising assessment tool. However, further validation with larger sample sizes is warranted. Keywords: port-wine stains, hematoporphyrin monomethyl ether, photodynamic therapy, color Doppler flow imaging.
1 day ago · The Problem with WASP-107 b. At more than three-quarters the volume of Jupiter but less than one-tenth the mass, the “warm Neptune” exoplanet WASP-107 b is one of the least dense planets known. While puffy planets are not uncommon, most are hotter and more massive, and therefore easier to explain. “Based on its radius, mass, age, and ...
4 hours ago · Abstract. Changes occur to the skin, tissue, and bones of the face as we age. Part of providing aesthetic care is understanding the aspects of the aging face and what contributes to the loss of youthful features. The aesthetic practitioner can provide the patient with a rejuvenated appearance only after learning the fundamental aspects of aging ...
4 hours ago · A subsequent chest X-ray also noted abnormalities. The doctor advised the woman to have another chest X-ray in six weeks as, at the time, the woman’s lump had shrunk, and her cough had improved.
