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Abstract There is a strong current of thought and action whose quest is to harmonize the relationship between nature and human production. To achieve this, man-made materials and systems must be increasingly sophisticated, miniaturized, recyclable, …

City and countryside in the late 3rd century B.C. A literary evocation of the comforts and inconveniences of urban life confronted with epigraphic data on life in an Attic deme and …

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Over the last ten years, a new family of radical enzymes known as SAM radical enzymes has emerged as being involved in a multitude of often essential metabolic pathways such as the biosynthesis of vitamins or cofactors. Initially identified in certain …

The living world contains a very large number of sulfur-containing molecules. In addition to the abundant cysteine and glutathione, there are secondary metabolites and cofactors such as biotin and lipoic acid, as well as nucleotides and acids modified …

Abstract In the third lesson, we dealt with the formalism of the quantum Langevin equation, which we applied to establish the evolution equations of the non-degenerate three-wave mixer introduced in the previous lesson. For an electrical oscillator, …