Mad scientists

Of mad dogs and scientists: the perils of the "criminal-insane"

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Mad spectra

The mad spectrum is the set of all cardinalities of infinite maximal almost disjoint families on ω. We treat the problem to characterize those sets A which, in some forcing extension of the universe, can be the mad spectrum. We give a complete solution to this problem under the assumption θ = θ, where θ = min(A). §0. Introduction. Recall that A ⊆ [ω] is called almost disjoint (a. d. for short),...

Very Mad Families

The notion of very mad family is a strengthening of the notion of mad family of functions. Here we show existence of very mad families in different contexts.

Mad minister disease?

Nearly ten years ago, a hitherto unknown neurological condition, bovine spongiform encephalopathy (BSE), appeared in British cows. It was labelled ‘mad cow disease’, because of the strange combination of fear and shambling gait shown by its victims. As more cases came to light, BSE was found to be similar to scrapie in sheep and it was suggested that cows were infected by eating feedstuffs cont...