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It is widely accepted that modern QSAR began in the early 1960s. However, as long ago as 1816 scientists were making predictions about physical and chemical properties. The first investigations into the correlation of biological activities with physicochemical properties such as molecular weight...
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empirical recurrence rate (ERR), developed by Ho (2008), to model the temporal trend of the sand-dust storms in northern China … reliable forecasts, capable of retrieving the corresponding mean numbers of strong sand-dust storms. …
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Data used in quantitative studies of global tropical deforestation are typically of poor quality. These studies use either cross-sectional or panel data to measure the contribution of social and land use factors to forest decline world wide. However, there are pitfalls in the use of either type...
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nonrandomized sample selection, and secondly calibration adjustment was used for uncertain coverage of the sampling frames. The …, naively applying the variance estimator for linear statistics highly overestimated the variance, resulting in understating the …
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Portfolio credit risk measurement is greatly affected by data constraints, especially when focusing on loans given to unlisted firms. Standard methodologies adopt convenient, but not necessarily properly specified parametric distributions or simply ignore the effects of macroeconomic shocks on...
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