Background & Aims: To investigate associations between serum levels of folic acid with the results of the first trimester Down syndrome screening methods and fetal karyotype in high-risk pregnant women. Materials & Methods: In this cross-sectional study, serum levels of folic acid in 232 high risk pregnant women were measured using ELISA method and Down syndrome screening was done using karyot...

abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...

Background and Purpose: Many people with Down syndrome learn to read to some degree, but how they learn to read has been debated by researchers. Some researchers have argued that given the phonological deficits of people with Down syndrome and their stronger visual-spatial abilities, they rely on the "visual route" to learn to read, while others have shown that the "phonological route" is also ...

Abstract Background and Purpose: Many people with Down syndrome learn to read to some degree, but how they learn to read has been debated by researchers. Some researchers have argued that given the phonological deficits of people with Down syndrome and their stronger visual-spatial abilities, they rely on the “visual route” to learn to read, while others have shown that the “phonological ro...