Branched polymers stress relaxation is at the center to their function as viscosity modifiers, though fundamentals that underlie correlation between polymer topology and impact on remains an open question. Here, of short, branched polyethylene comb melts studied by molecular dynamics simulations. A coarse-grained model where four methylene groups constitute one bead used, results are transposed...

background: relaxation-training, as an anxiety-reducer intervention, plays an important role in fetal health. the present study aimed to analyze the effect of maternal relaxation on stress test (nst), basal fetal heart rate, and number of fetal heart accelerations. methods: in this randomized controlled trial, 84 pregnant women were randomly divided into two groups of teaching relaxation and co...