De Witt Sumners
The action of an enzymate on a strand of DNA is a topological modification of the knot/link type of strand. A calculus of these modifications is developed in order to better understand the mechanisms and outcomes of these operations.
(pp. 528)
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Donald G. Saari and Zhihong (Jeff) Xia
Are there solutions to the Newtonian equations of motion due to gravity which have noncollision singularities (bodies flying off to infinity in finite time)? This problem is solved by the construction by one of the authors of a five-body system which exhibits this phenomenon.
(pp. 538)
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Anne Roberts
A collaboration of university mathematicians with the entire faculty of an elementary school attempts, through summer workshops and year-round involvement, to complete the transference of new knowledge and technique to the daily activities of the classroom.
(pp. 547)
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