منابع مشابه
Effects of exposure to slate dust in North Wales.
In a study of slate workers in four areas in North Wales 725 workers and ex-workers who had been exposed to slate and to no other dust were seen, together with 530 men from the same area who had never been exposed to any dust. Evidence of pneumoconiosis was found in one-third of the slate workers, and 10% had degrees of pneumoconiosis that would attract compensation (category 2 or higher). The ...
متن کاملMortality of slate workers in north Wales.
In a study in 1975 of the mortality experienced over six years by two groups of men one group had been exposed to slate dust and the other had had no previous exposure to dust. In non-smokers there was no material excess mortality associated with past exposure to dust but in smokers there was a pronounced (26%) excess. In the slate workers the risk for smokers was on average 76% greater than fo...
متن کاملBootstrapping Computer Science in Old North Wales
We describe our experiences in setting up a new Computer Science department in an established University within the UK. We drew upon our experiences in teaching Computing in Australia, the USA and the UK. We discuss cultural differences and constraints upon us in designing and teaching a BSc in Computer Science. We also relate teaching and culture bootstrap effects from having to start a whole ...
متن کاملBrownian penalisations related to excursion lengths, VII
Limiting laws, as t →∞, for Brownian motion penalised by the longest length of excursions up to t , or up to the last zero before t , or again, up to the first zero after t , are shown to exist, and are characterized. Résumé. Il est prouvé que les lois limites, lorsque t → ∞, du mouvement brownien pénalisé par la plus grande longueur des excursions jusqu’en t , ou bien jusqu’au dernier zéro ava...
متن کاملAn Excursion to the Kolmogorov Random Strings
We study the set of resource bounded Kolmogorov random strings: R t = fx j K t (x) jxjg for t a time constructible function such that t(n) 2 n 2 and t(n) 2 2 n O(1). We show that the class of sets that Tur-ing reduce to R t has measure 0 in EXP with respect to the resource-bounded measure introduced by 17]. From this we conclude that R t is not Turing-complete for EXP. This contrasts the resour...
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ژورنال
عنوان ژورنال: Proceedings of the Geologists' Association
سال: 1910
ISSN: 0016-7878
DOI: 10.1016/s0016-7878(10)80044-6