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The proportion of AST to ALT in hepatocytes is about 2.5:1, but because AST is removed from serum by the liver sinusoidal cells twice as quickly (serum half-life t 1/2 = 18 hr) compared to ALT (t 1/2 = 36 hr), so the resulting serum levels of AST and ALT are about equal in healthy individuals, resulting in a normal AST/ALT ratio around 1.
The X-ray spectrometer aboard ISEE-3 was designed to study both solar flares and cosmic gamma-ray bursts over the energy range 5-228 keV. The experiment consisted of 2 cylindrical X-ray detectors: a Xenon filled proportional counter covering 5-14 keV, and a NaI(Tl) scintillator covering 12-1250 keV.
The X-ray required a 2-hour exposure, but successfully demonstrated the bullet lodged in the third carpometacarpal joint. This case was published in The Lancet in February 1896, [30] the first published clinical radiograph. [31] Robert Jones described the fracture of the fifth metatarsal which bears his name in the Annals of Surgery in 1902. In ...
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Disc of debris around an F-type star, HD 181327. [1]An F-type main-sequence star (F V) is a main-sequence, hydrogen-fusing star of spectral type F and luminosity class V. . These stars have from 1.0 to 1.4 times the mass of the Sun and surface temperatures between 6,000 and 7,600
This aspect ratio is also wider than the popular 16:9, thus being very popular among different E-Sports tournaments. The next several formats have their roots in classic film photography image sizes, both the classic 35 mm film camera, and the multiple format Advanced Photo System film camera. The APS camera was capable of selecting any of ...
PSR B1919+21 is a pulsar with a period of 1.3373 seconds [4] and a pulse width of 0.04 seconds. Discovered by Jocelyn Bell Burnell on 28 November 1967, it is the first discovered radio pulsar. [5]
Munitions Transport of Division 1.1 Explosives. The Explosive Shipping Classification System exists as part of the United Nations Recommendations on the Transport of Dangerous Good: Model Regulations.