32% for GBS), especially in very preterm infants (54%). GBS was more often involved in seizures than E. coli (41% vs. 25%). The overall mortality rate was 13% but reached 25% in preterm or small for gestational age infants, regardless of the etiology.
Conclusions: GBS was the dominant cause of neonatal bacterial meningitis, with 77% of early-onset and 50% of late-onset cases. E. coli was the most common bacteria in preterm infants.”
“The prevalence of the recently identified astrovirus MLB1 in a cohort of children with diarrhea in St. Louis, Missouri, USA, was defined by reverse transcription-PCR. Of 254 stool specimens collected in 2008,
4 were positive for astrovirus selleck screening library MLB1. These results show that astrovirus MLB1
is circulating in North America.”
“The microwave power density absorbed in the normal state by continuously irradiated superconducting Nb and NbN nanostrips is extracted from their electrical transport properties. The procedure is based on the reduction of the retrapping current (i.e., the minimum applied current required to sustain a dissipative region inside a superconducting microbridge) that results from the microwave dissipation. The power effectively absorbed by the nanostrips varies linearly with the input power level and falls in the mu W mu m(-3) range. At a given microwave frequency, the relation between the input power and the absorbed power does not depend on the coolant temperature. Fedratinib datasheet In addition, the upper limit of the detection range is given by the heat removal capabilities through the substrate. When the absorbed microwave power exceeds this temperature-dependent heat removal threshold, normal hotspot domains are stabilized down to zero bias current. The determination of the microwave power absorbed by superconducting samples in the normal state may be of practical interest in the field of incident power detection. (C) 2011 American Institute of Physics. [doi:10.1063/1.3632982]“
“Polylactide nanocomposites with organo-modified
montmorillonite presenting a high degree of clay exfoliation were prepared via in situ polymerization by using an improved methodology. FK228 The morphology of the nanocomposites was studied by WAXD and SAXS. The size distribution of clay aggregates in the polylactide matrices was quantitatively determined by SAXS applying the stacked-disk model. The analyses show high degree of delamination of the silicate yielding exfoliated polylactide nanocomposites even at high concentration of clay (>10 wt %). L-lactide conversions measured by ATR-FTIR were determined to be no less than 94% after 3 h of reaction in all polymerizations. DSC measurements were performed to study the influence of the clay content on the thermal behavior of the prepared nanocomposites. (C) 2011 Wiley Periodicals, Inc.