Endangered-porpoise numbers fall to just 250

Numbers Are Just Numbers

Making good choices about retirement involves the processing of numbers. In particular, consumers must have easily available, accurate, and timely numbers, and they must also use them. Contrary to the consumer-driven approach, however, the evidence demonstrates that having an abundance of information does not always translate into it being used to inform choices. The challenge is not merely to ...

Sun EnterpriseTM 250 Server Just the Facts

Random numbers fall mainly in the planes.

The apparently haphazard way in which successive multiplications by a large integer K produce remainders after overflow makes the resulting numbers work surprisingly well for many Monte Carlo problems. Scores of papers have reported favorably on cycle length and statistical properties of such generators. The purpose of this note is to point out that all multiplicative congruential random number...

Models with a porpoise.

F ontaine et al. provide insight into the structure of a geographically disjunct population on a severe downtrend (1). To understand these data, they turned to a Bayesian statistical approach, providing the mathematical base for changing existing beliefs in light of new evidence. Their hybrid simulation/genomic analysis is one of the latest demonstrations that increasing crossfertilization betw...

The Incomplete Glutathione Puzzle: Just Guessing at Numbers and Figures?

SIGNIFICANCE Glutathione metabolism is comparable to a jigsaw puzzle with too many pieces. It is supposed to comprise (i) the reduction of disulfides, hydroperoxides, sulfenic acids, and nitrosothiols, (ii) the detoxification of aldehydes, xenobiotics, and heavy metals, and (iii) the synthesis of eicosanoids, steroids, and iron-sulfur clusters. In addition, glutathione affects oxidative protein...