Abstract: Disclosed herein are systems and methods for determining ubiquitin carboxy-terminal hydrolase L1 (UCH-L1), glial fibrillary acidic protein (GFAP), or a combination thereof in a blood sample obtained from a subject. Also disclosed herein are systems and methods for determining CK-MB, ?-hCG, thyroid stimulating hormone (TSH), homocysteine, free thyroxine (free T4) or any combinations thereof in a blood sample.

Abstract: A versioned-data management system is provided with a method for detecting independent changes to a part when an attempt is made to promote a variant of the part. For each variant of a part, there is maintained two identifiers and a flag. The first identifier is the identifier of the last change to that variant. The second identifier is the last-change identifier of the variant which was the source of the drawdown. When the variant is successfully promoted, and there was not previously a variant at the level to which it is promoted, its drawdown-from identifier value is not changed. When the variant is successfully promoted, and there was previously a variant at the level to which it is promoted, the drawdown-from identifier is set to the drawdown-from identifier value of the variant which was previously at the level to which the promote is made.