‘Lenin's last struggle’ revisited

QUICKSELECT Revisited

We give an overview of the running time analysis of the random divide-and-conquer algorithm FIND or QUICKSELECT. The results concern moments, distribution of FIND’s running time, the limiting distribution, a stochastic bound and the key: a stochastic fixed point equation.

PENDRED\'S SYNDROME REVISITED

Pendred's syndrome is defined as a triad of congenital perceptive hearing loss, goiter, and abnormal perchlorate test. Three brothers with Pendred's syndrome [P.S.] are reported. The oldest brother has hearing loss (he has been deaf and mute since childhood) and has a large goiter. A thyroid scan revealed euthyroid multinodular goiter and a perchlorate test was performed, and reported abno...

The Struggle for Existence

"It is in the nature of things" is surely, today, just as good an explanation of a biological phenomenon as it ever was; and now, as always, it is singularly unilluminating. That some of the problems to which such an explanation is usually given are susceptible to analysis appears obvious; at least an approach can be made toward segregating the many factors which, acting independently ox throug...

A Struggle Against Forgetting

One of the most remarkable characteristics of living organisms is their ability to alter their behavior by learning. Human beings excel at processing new information, retaining it in their memory, and using it to develop new ideas. Studies in the mollusk Aplysia showed that learning involves the strengthening and increased effectiveness of preexisting synapses. Over time, it has become clear th...

Struggle to Return