“
“We have fabricated suspensions exhibiting the giant electrorheological
(GER) effect comprising nanoparticles-multiwall carbon nanotubes (MCNTs) composite particles dispersed in silicone oil. This type of GER fluids display dramatically enhanced antisedimentation characteristic without sacrificing the yield stress. The nanoparticles-nanotubes composites were fabricated by modifying the coprecipitation method with MCNTs and urea-coated see more barium titanyl-oxylate (BTRU) nanoparticles as the components. The composite solid particles are denoted MCNT-BTRU. In the best cases, stabilized suspensions with MCNT-BTRU particles dispersed in silicone oil have been maintained for several months without any appreciable sedimentation being observed. Both the sedimentary and rheological properties of the MCNT-BTRU suspension were systematically studied and compared with their BTRU counterparts. Yield stress as high as 194 selleck kinase inhibitor kPa was obtained in the MCNT-BTRU suspensions. The MCNT-BTRU based
GER fluids, with their antisedimentation characteristic, may have broad engineering applications. (C) 2010 American Institute of Physics. [doi:10.1063/1.3407503]“
“Background: alpha-Linolenic acid (ALA; 18: 3n-3) has been associated inconsistently with an increased risk of prostate cancer. Additional studies have become available since the publication of 2 previous meta-analyses.
Objective: The objective was to review the published data on the relation between ALA and prostate cancer.
Design: We conducted a systematic review to identify studies that included data on ALA and risk of prostate cancer. Data were pooled from studies that compared the highest
ALA quantile with the lowest ALA quantile, and risk estimates were combined by using a random-effects model.
Results: The relation between ALA and prostate cancer is inconsistent across A-1210477 datasheet studies. We pooled data from 8 case-control and 8 prospective studies. The summary estimate revealed that high ALA dietary intakes or tissue concentrations are weakly associated with prostate cancer risk (relative risk [RR]: 1.20; 95% CI: 1.01, 1.43). When examined by study type (ie, retrospective compared with prospective or dietary ALA compared with tissue concentration) or by decade of publication, only the 6 studies examining blood or tissue ALA concentrations revealed a statistically significant association. With the exception of these studies, there was significant heterogeneity and evidence of publication bias. After adjustment for publication bias, there was no association between ALA and prostate cancer (RR: 0.96; 95% CI: 0.79, 1.17).
Conclusions: Studies examining the relation between ALA and prostate cancer have produced inconsistent findings.