Background Early graft failure within 90 postoperative days is the leading cause of mortality after heart transplantation. Existing risk scores, based on linear regression, often struggle to capture ...

Explore what economic sunspots are, how they influence financial markets independently of fundamentals, and their fascinating ...

Medical research studies have a number of possible designs. A strong research project closely ties the research questions/hypotheses to the methodology to be used, the variables to be measured or ...

Dependent variables change based on other inputs in financial models, affecting investment outcomes. Independent variables like earnings affect dependent variables, influencing metrics like P/E ratios ...

Abstract: In probability theory, variance is a device to measure dispersion of random variable from its mean. In order to explain complex uncertain random variable,variance and pseudo-variance are ...

Abstract: Moments of continuous random variables admitting a probability density function are studied. We show that, under certain assumptions, the moments of a random variable can be characterized in ...

I think the Dynamic Variables section could be enhanced by providing examples of how to create a new "Bruno" variable from a random one and including a link to ...

The use of factual/counterfactual comparisons—that is, estimating the difference between what actually happened and what would have happened absent an event—is a fundamental tool in the economists’ ...