Re. A Cautionary Note on Extended Kaplan–Meier Curves for Time-varying Covariates

Guidelines for Generating Right-Censored Outcomes from a Cox Model Extended to Accommodate Time-Varying Covariates

A note on superspecial and maximal curves

In this note we review a simple criterion, due to Ekedahl, for superspecial curves defined over finite fields.Using this we generalize and give some simple proofs for some well-known superspecial curves.

A Cautionary Note on an Easy Mistake

Moreover, I also demonstrate that the available data are consistent with the view that at birth the only difference between the hemispheres is that the left hemisphere has more computational power. This implies that the evolution of asymmetries could be the direct result of the evolution of a general physical asymmetry (in size at birth, oxygenization, metabolic rate, perinatal maturation rate)...

A cautionary note on global recalibration

We report a mathematical result that casts doubt on the possibility of recalibration of probabilities using calibration curves. We then discuss how to interpret this result in the light of behavioral research.

A cautionary note on image downgrading

The results of an experiment that shows that it is very simple to contaminate digital images with information that can later be extracted are presented. This contamination cannot be detected when the image is displayed on a good quality graphics workstation. Based on these results, it is recommended that image downgrading based on visual display of the image to be downgraded not be performed if...