In an analysis that included only satisfactory-quality studies, conventionally produced crops had a significantly higher content of nitrogen, and organically produced crops had a significantly higher content of phosphorus and higher titratable acidity. No
evidence of a difference was detected for the remaining 8 of 11 crop nutrient categories analyzed. Analysis of the more limited database on livestock products found no evidence of a difference in nutrient content between organically and conventionally produced livestock products.
Conclusions: On the basis of a systematic review of studies of satisfactory quality, there is no evidence of a difference in nutrient quality between organically and conventionally produced foodstuffs. The small differences in nutrient content detected are biologically plausible and mostly relate to differences Transmembrane Transporters inhibitor in production methods. Am J Clin Nutr 2009;90:680-5.”
“The composites of solution polymerized styrene-butadiene rubber (SSBR) filled with SiO2/carbon black (CB) were prepared by reaction blending. The mechanical and antistatic properties were studied. The morphology and dispersion of the two kinds of nano-fillers in the composites were observed. The results showed that CB
presented 30 nm spherical particles and selleck compound formed filler networks in the SSBR/CB composite. Payne effect of the SSBR/CB composite was large and the antistatic property was excellent; SiO2 powder presented 20-40 nm irregular particles and also formed filler networks in the SSBR/SiO2 composite. The internal friction of the SSBR/SiO2 OSI-906 datasheet composite was low, however, the static accumulation was obviously large; SSBR/SiO2/CB composites exhibited good filler dispersion, high mechanical properties and low internal
friction. The rolling resistance, wet-skid resistance and wear resistance are well balanced. Among these, the composite filled with SiO2/CB in 20/50 achieved the best overall performances. The surface and volume resistivity of the composites was increased with increasing amount of SiO2. For the researched formulation, the ratio of SiO2/CB in 35/35 was the percolation threshold for the antistatic property of the composites. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 118: 338-345, 2010″
“The magnetic properties of the nanocomposite consisting of hematite (alpha-Fe2O3) nanoparticles embedded in the hollows of the periodic nanoporous silica matrix were investigated. The magnetic measurements showed on the superparamagnetic behavior of the nanoparticles. This behavior was evidenced by the irreversibility of magnetization curves measured in zero-field-cooled and field cooled regimes, by the presence of a maximum in zero-field-cooled magnetization curve related to blocking temperature T-B similar to 37 K and also by revealing of the coercivity H-C below T-B.