منابع مشابه
Double checking the cross-check principle.
The cross-check principle was proposed by Jerger and Hayes over 20 years ago. Actually, the cross-check principle consists of a concept and a specific test protocol. The concept, that one test result confirms another test result, is still in use. Their specific protocol is essentially forgotten. The cross-check protocol they described, however, differs from more traditional test protocols. From...
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Cobalamin-independent methionine synthase (MetE) catalyzes the transfer of a methyl group from methyltetrahydrofolate to L-homocysteine (Hcy) without using an intermediate methyl carrier. Although MetE displays no detectable sequence homology with cobalamin-dependent methionine synthase (MetH), both enzymes require zinc for activation and binding of Hcy. Crystallographic analyses of MetE from T...
متن کاملDouble face of VEGF.
The Roman god Janus (Figure) was the guardian of gates and doors and was believed to represent beginnings and endings; he is hence represented by a double-faced head. He particularly presided over all that is double-edged in life and represented the transition between the primitive and civilization, between the countryside and the city, peace and war, and the growing-up of young people. The con...
متن کاملThe 'double face' illusion.
We report three experiments intended to characterise aspects of the 'double face' illusion, formed by replicating the eyes and mouth below the originals. Such doubled faces are disturbing to look at. We find there are wide individual differences in the ability to detect that a face has been doubled when presented briefly and masked. These differences appear to relate to perceptual speed, since ...
متن کاملDouble Linear Discriminate Analysis for Face Recognition
In this paper we propose a new algorithm for face recognition named as Double Linear Discriminate Analysis (DLDA) in which we combine two linear discriminate methods: 2D-LDA and Fisher-face sequentially. Experimental results on benchmark face datasets show that DLDA not only achieves the best performance when the number of training samples is appropriate, but also its speed is the fastest among...
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ژورنال
عنوان ژورنال: Nature
سال: 1994
ISSN: 0028-0836,1476-4687
DOI: 10.1038/369005b0