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Karan Gupta

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116. Michael Dela Torre Lascuña 37
117. Tanesha Lindsey 37
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119. Lidija Duvnjak 35
120. Mark Shanteau 35
last 3 solved tasks
NUMBERMANIA: Calculate the number 1027 using numbers [9, 1, 3, 4, 90, 939] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
If c9c07 - ca8bb = a3a1 find number abc. Multiple solutions may exist.
NUMBERMANIA: Calculate the number 5031 using numbers [6, 7, 4, 2, 18, 727] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

August von Wassermann

Born 21 Feb 1866; died 16 Mar 1925 at age 59.German bacteriologist whose discovery of a universal blood-serum test (1906) for syphilis helped extend the basic tenets of immunology to diagnosis. "The Wassermann reaction," in combination with other diagnostic procedures, is still employed as a reliable indicator for the disease. A positive reaction when the blood or spinal fluid of the patient is tested indicates the presence of antibodies formed as a result of infection with syphilis (even though symptoms of the disease may not be observable at the time). A few other diseases, however (such as leprosy), also sometimes produce a positive Wassermann reaction. In addition, he developed inoculations against cholera, typhoid, and tetanus. He was a student of bacteriologist Robert Koch.

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