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A simulation study comparing performance of minimum P-value and Youden index as methods to find optimal cut-points of continuous variables
No full textDichotomizing biomarkers for failure time outcome: from classification probabilities to predictive values based methods
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Cut-Point Finding Methods For Continuous Biomarkers In The Presence Of Binary And Censored Failure Time Outcome
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SYNTHESIS, CHARACTERIZATION, AND CRYSTALLOGRAPHIC ANALYSIS OF SOME BENZOIMIDAZOLE DERIVATIVES
No full textA number of benzenesulfonyl derivatives of benzoimidazol-2-ylamine and 1-methyl-benzoimidazol-2-ylamine were synthesized, their synthesis reactions under different experimental conditions being monitored by hptlc. The crystal and molecular structures of N-(1-benzenesulfonyl-1,3-dihydrobenzoimidazol-2-ylidene)benzenesulfonamide (4) and N-(1-benzenesulfonyl-3-methyl-1,3-dihydro-benzoimidazol-2-ylidene)-benzenesulfonamide (7) were determined by X-ray diffraction analysis. The structure of compound 4 is made up of two crystallographically independent molecules and that of compound 7 of one molecule. In both cases, the structure contains the imido form of the molecules. There are strong conjugative effects between the imido groups and the imidazolic rings. Weak intramolecular C-H ... O hydrogen bonding interactions could influence the molecular conformations
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