We consider the usual proportional hazards model in the case where the baseline hazard, the covariate link, and the covariate coefficients are all unknown. Both the baseline hazard and the covariate ...

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Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Embryonic cell lines were established from sea urchins which recapitulated aspects of the developmental program in vitro and were amenable to lentiviral transduction, providing a scalable platform for ...

You might have noticed more people taking a pass on alcohol as they discover the physical and mental benefits of an alcohol-free lifestyle. With this trend has come a new generation of nonalcoholic ...

Nonqualified dividends are taxed higher than qualified ones; rates match the ordinary income tax rate. Knowing your dividend type and stock holding period is crucial for tax planning in investments.