Computational methods have been used in the past to generate large libraries of hypothetical zeolite structures, but to date analysis of these structures has typically been limited to relatively simple physical properties such as density. We use efficient methods to analyze the adsorption and diffusion properties of simple adsorbate molecules in a library of >250 000 hypothetical silica zeolite...

In a stable population of 250 000, the diagnosis of congestive cardiomyopathy could be firmly established in fifty-nine cases during a period of 8 years. This gives an incidence of the disease of 3/100 000/year. If cases disclosed at post-mortem during the same period are included, the frequency of the disease will equal 5/100 000/year.

With approximately 250 000 marine species, the ocean is a vast reservoir of biodiversity and an abundant biological resource natural polymers microorganisms producing biopolymer-degrading enzymes.