منابع مشابه
Temporal dynamics of Gd-enhaced T1 relaxation time in deep and superficial femoral articular cartilage
INTRODUCTION dGEMRIC (delayed gadolinium-enhanced MRI of cartilage) technique has been developed to assess GAG content of articular cartilage [1]. Based on the previous studies, the ideal imaging time for knee joint after contrast agent injection has been assessed to be two hours [2]. However, the change in cartilage T1 has been observed from bulk regions of interest containing both deep and su...
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A 50 years old male patient to referred to our clinic for multiple hard diffused lesions on palms, plantars and penis. The Genesis of the problem goes back to 10 years earlier. The lesions appeared first on the soles and gradually new lesions appeared on the palms and eventually on the penis, so that stretching and contraction of the fingers and toes has become painful. During the last 6 years,...
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‎It is a well-known fact that finding a minimum dominating set and consequently the domination number of a general graph is an NP-complete problem‎. ‎In this paper‎, ‎we first model it as a nonlinear binary optimization problem and then extract two closely related semidefinite relaxations‎. ‎For each of these relaxations‎, ‎different rounding algorithm is exp...
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ژورنال
عنوان ژورنال: Nature
سال: 1997
ISSN: 0028-0836,1476-4687
DOI: 10.1038/386230a0