From black and white linoleum on the kitchen floor to magnificent Islamic mosaic to the intricate prints of M.C. Escher, tilings are an essential component of the decorative arts, and the complex mathematical structure behind them has intrigued scientists, mathematicians, and enthusiasts for centuries. Johannes Kepler, most famous for his laws of planetary motion, was known to have been interes...

Cai, G. 2013. Fungal DNA, Mould, Dampness and Allergens in Schools and Day Care Centers and Respiratory Health. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine 942. 85 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-8788-1. Day care centers and schools are important environments for children, but few epidemiological studies exist from these env...

The clinical presentation of methyl alcohol intoxication in humans may va ry from one ext reme which mimics an intracranial catastrophe to a more subtle picture which may consist only of vague constitutional symptoms and a mild visual disturbance. When many patients with similar complaints and physical findings arrive at a hospital emergency room within a short space of time, it is not difficul...

www.thelancet.com Vol 374 September 5, 2009 771 He dashes, then swerves, the rubber of his wheelchair squeaking as it rolls over the gleaming linoleum fl oor. 14-year-old Aphiwe Velelwandle circles, comes in for the kill, breaks through doctor Karl Le Roux’s porous defence and snatches the basketball away to the cheers of the clinical team. It is diffi cult to believe this scene is being played...

Although skin changes in workers associated with the manufacture of various textiles, especially cotton, have been the subject of numerous communications (e.g., Southam, 1927; Brockbank, 1941) there are few references in the literature to dermatoses in jute workers. Henry (1947) refers to one case of scrotal carcinoma in a jute worker out of a total of 1,421 notifications to the Factory Inspect...

Epidemiological evidence indicates that common environmental allergens found in building reservoirs are strongly associated with the development of bronchial hyper-reactivity (BHR) or asthma, affecting up to half the population in North America and Europe. Although they are rarely life threatening, these diseases cause much distress and lost time from school and work. These diseases are believe...

Until the latter part of the 19th century, humans were largely dependent upon contemporaneous biological sources for the production of all organic materials. Plants and animals provided the only sources of fibers, coatings, lubricants, solvents, dyes, waxes, fillers, and insulation, fragrances, detergents, sizing, leather, wood, paper, rubber, and many other types of materials. As recently as 1...

250 words max) THE EFFECTS OF TIRE PRESSURE ON WHEELING EFFICIENCY Ian Denison, RPT; William C Miller PhD*, OT; Bonita J. Sawatzky, PhD^ BC Rehab, Vancouver Hospital, *School of Rehabilitation Science, UBC; ^Department of Orthopaedics, UBC 4255 Laurel Street, Vancouver, BC V5Z 2G9 Canada [email protected] INTRODUCTION This research project was undertaken to give clinicians information that...

We analysed the co-ordination of the elevation angles of the thigh (a t), shank (a s) and foot (a f) during walking in 19 adults and 21 children (aged 11±144 months), including the very ®rst unsupported steps in four. Cross-correlation functions (CCF) maturation of pairs of elevation angles was quanti®ed by a global error parameter (Et(CCF)) re ̄ecting the difference between particular CCF value...