radiology and nuclear medicinecerebral cortexblood flowpositron computed tomographyradioisotope scanningoxygen 15diagnostic usesthalamusadultsdensityA knowledge of the brain-blood partition coefficient (lambda) for water is usually required for the measurement of CBF with [15O]water. The currently accepted ...
The geometry of the universe is determined by the density of matter within the universe. Albert Einstein'stheory of general relativitydescribes how matter can curve space, so the matter's density can control the curvature and geometry of space on the largest scales. The key value is the "crit...
What is the average density of the earth? M = 5.97 x 1024 kg , R = 6370 km Average density of earth: If the mass of a object is M and volume of that object is Vthen the density of the object is ρ=MV. To solve the given problem we will find the volume of...
Under each of these scenarios, past climatic oscillations are seen as the major distal cause of the process and the location of hotspots is seen as intimately linked to the so-called 'glacial refugia'. Under the first scenario, a hotspot would testify to the long-term persistence of ...
Many of those units use the same name but have very different meanings. On the U.S. Metric Association website, contributor Dennis Brownridge identifies at least nine different meanings for the unit we know as a "ton": short ton, displacement ton, refrigeration ton, nuclear ton, freight ...
The energy required to separate all the nucleons inside a nucleus is called binding energy of the nucleus. Write an expression for binding energy in terms of mass defect View Solution Size OF Nucleus||Density OF Nucleus|| Binding Energy OF Nucleus ...
the partial volume effect. This systolic apparent increase in count density occurs since myocardial thickness is commonly in the range up to 2 cm, less than twice the full width at half maximum of the point spread function of conventional gamma cameras with intrinsic spatial resolution of ~1 cm...
R0=1.2×10−15 m is the constant. A is the atomic mass number of the nucleus and it is equal the number of nucleons(Sum of protons and neutrons) of the nucleus. Answer and Explanation: Given: The atomic mass number of the nucl...
In solid materials, particles are tightly packed, which means they have a high density. This curtails their movement. Moreover, the electrons in each atom are in constant motion, so the atom has a small vibration. Nonetheless, its position remains fixed, which is why solid particles have low...
What is the approximate shortest internuclear distance between any two carbon atoms in diamond if it has density equal to 2gm//ml? [N(A) = 6xx 10^(23)]