Fig. 1 Melting curve analysis of the 267-bp fragment of the 23S rRNA gene obtained with the LightCycler® assay for the wild-type and mutant strains with the A2142G, A2143G, and A2142C mutations. The melting curve corresponding to a mixture containing equal proportions of wild-type, A2142G, and A2142C is also shown, and three melting peaks with the corresponding Tm can be observed. Values on the y axis represent the ratio of the first negative derivative of the change in fluorescence (dF) with the variation in temperature. (View this art in color at

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Getting Started With Dumbbells

Getting Started With Dumbbells

The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.

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