Among them: a ban on abortions after 20 weeks of pregnancy in most cases rather than an earlier standard of viability, which was often determined by doctors to be several weeks later.
Final average and standard deviation of viability values are calculated over the five replications after blank subtraction.
As screens are prone to a significant false-positive rate, we assessed the effects of cytarabine using short-term viability assays (with identical conditions to the original screen), and clonogenic assays, the gold standard of cellular viability (Brown and Attardi, 2005), where cells were exposed to cytarabine for 24 h.
The 20-week laws also violate the existing standard of fetal viability.
The bill flouts the Roe v. Wade standard of fetal viability.
Indeed, many of the most extreme anti-choice measures passed in state legislatures (and, as of this week, potentially the US Congress) stand on weak constitutional grounds; "fetal heartbeat" laws create a whole new standard of fetal viability and legal experts predict costly and ultimately pointless court battles defending them.
It is also dismaying that Arkansas lawmakers cavalierly approved the 12-week ban just a week after adopting — over another veto from the governor — a 20-week ban that also violates the existing standard of fetal viability and 40 years of Supreme Court precedent.
Their freedom from the more acute profit-making pressures, often a result of direct subsidies, coupled with their assured, if limited, market, enables many to reach high standards of production and commercial viability.
In the lack for specific guidelines, such novel bioreplacements are rendered equivalent to standard bioprostheses, for which, however, characteristics of viability or support to living cell elements are not contemplated.
