Indirect susceptibility test

P. aeruginosa infections [9]. This may be considered paradoxical, since laboratory susceptibility tests of these antibiotics have demonstrated them to be neither bactericidal nor bacteriostatic against P. aeruginosa at their usual therapeutic doses. It has been speculated, therefore, that the clinical efficacies of these macrolides may be due to an indirect result of the effects on the organism s virulence factors, host defense systems, or both. 

A thorough review of markers of DNA repair and susceptibility to cancer in humans from 2000 [64] has summarized the results from 64 epidemiologic studies that addressed the association of cancer susceptibility with a putative defect in DNA repair capacity. The authors concluded that the vast majority of studies showed a difference between cancer case subjects and although this observation is compatible with a chromosomal instability due to the cancer itself, it was notable that impaired mutagen sensitivity was also observed in healthy relatives of cancer subjects. There were a variety of functional tests used that only indirectly addressed DNA repair and these showed high variability in their expression. Finally, the issue of confounding was almost totally unexplored. 

An indirect proof that insecticides do not cause resistance is shown with sister selections. It was demonstrated that it is possible to make resistant strains by breeding pairs of insects separately. Some of the offspring were used for resistance testing, and the brothers and sisters of insects with low susceptibility were taken for breeding. By this method it was possible to produce resistant strains from insects that had never themselves, nor their ancestors, been exposed to insecticides. 

The tests may be conducted on loose or on compacted bituminous mixture. In the first case, the affinity between aggregates and bitumen or aggregate s hydrophilia is determined directly. In the second case, the moisture susceptibility of the compacted bituminous mixture (specimen) is specified and the susceptibility to stripping or aggregate/bitumen affinity or aggregate s hydrophilia is determined indirectly. 

The plasticity retention index (PRI) is a measure of the susceptibility of the raw rubber to oxidative degradation. Oxidation is catalyzed by some metals such as copper, so that the PRI test gives an indirect indication of the presence... 

In this technique, the electrochemical signal serves to both amplify and accelerate a specific corrosion mechanism, i.e., intergranular corrosion (IC). Since that mechanism is often a precursor for the more catastrophic see, the same testing technique has been applied to the characterization of the susceptibility of aluminum alloys to See. For many industries, indirect testing for le has replaced carrying out expensive tests for the characterization of aluminum alloys susceptibility to see. The following list summarizes the empirical correlation between le and See reflecting industrial experience ... 

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