• The first aircraft structural composite components were reinforced with flax in 1940. Flax fibres used adapted technologies (preg, untwisted fibres…). potential to reinforce polymers was already demonstrated Over the past 80 years, varieties and fibre yields have changed significantly. However, geometry mechanical properties of remained stable. last years seen significant changes industrial t...

I suppose that every teacher of elementary genetics has at one time or another encountered the b lief that in the absence of counteracting factors there should be three times as many dominant as recessive phenotypes in the population. It was this statement that induced G. H. HARDY in 1908 to write his famous paper. He started out somewhat apologetically, saying: “I am reluctant to intrude in a ...

Osteotomy of the neck of the first metatarsal bone has been practised for many years in the treatment of hallux valgus. Although various techniques have been described (Hohmann 1948 ; Mitchell, Fleming, Allen, Glenney and Sanford 1958), we are aware of only one detailed report of results (Mitchell et a!. 1958). This paper presents the results of osteotomy in eighty-two feet, and attempts to def...

We propose a new approach for examining self-related aspects and phenomena. The approach includes (1) a taxonomy and (2) an emphasis on multiple levels of mechanisms. The taxonomy categorizes approximately eighty self-related phenomena according to three primary functions involving the self: representing, effecting, and changing. The representing self encompasses the ways in which people depict...