A common example of a back-end exchange is when a patient on vacation visits a doctor who then may request access to the patient's health records, such as medicine prescriptions, x-ray photographs, or blood test results.
42.
Today both this painting and its pendant are considered original Hals portraits, but x-ray photographs show different faces under the faces we see today, leading to the possibility that these portraits once belonged to other sitters.
43.
Watson acknowledged that he had seen a diffraction X-ray photograph of the DNA molecule taken by Franklin, but he left it unclear just what role the photograph had played in the discovery a few weeks later of the DNA structure.
44.
The X-ray diffraction pictures, including the landmark " Photo 51 ", taken by Franklin at this time have been called by J . D . Bernal as " amongst the most beautiful X-ray photographs of any substance ever taken ".
45.
Together, in 1934, they took the first X-ray photographs of hydrated protein crystals using the trick of bathing the crystals in their mother liquor, giving one of the first glimpses of the world of molecular structure that underlies living things.
46.
There is a Man Ray photograph of hanging laundry blowing in the wind, " Moving Sculpture, " and the abstract painting he derived from it, " Flying Dutchman, " works that anticipate, by a couple of generations, Ellsworth Kelly's wonderful photo-derived abstractions.
47.
There is also an identification of Diego de Guevara as subject of a portrait in 1548 in the inventory of the Spanish widow of embroidered cross of the Order of Calatrava, which x-ray photographs show was added in the course of painting.
48.
She did not know that they had seen either her X-ray photograph ( Fig . 1 ), showing unmistakable evidence of a helical structure, or her precise measurements of the unit cell ( the smallest repeating unit ) of the DNA crystal.
49.
Using a carefully bundled group of these DNA threads and keeping them hydrated, Wilkins and a graduate student Raymond Gosling obtained X-ray photographs of DNA that showed that the long, thin DNA molecule in the sample from Signer had a regular, crystal-like structure in these threads.
50.
For this reason, a computational system is under study which takes X-ray photographs of the fruit while they run on conveyor belts, and which is also able to analyse ( by data mining techniques ) the taken pictures and estimate the probability that the fruit contains watercores.
