With this website an increase of
the surface charge towards sigma*(s), the surface-attractive counterion screening excess starts to dominate, and correlation effects amplify in this regime the mean-field density of both type of ions. However, in the regime sigma(s) > sigma*(s), the same counterion screening excess also results in a significant decrease of the electrostatic mean-field potential. This reduces in turn the mean-field counterion density far from the charged surface. We also show that for sigma(s) >> sigma*(s), electrostatic correlations result in a charge inversion effect. However, the electrostatic coupling regime where this phenomenon takes place should be verified with Monte Carlo simulations since this parameter regime is located beyond the ACP-196 solubility dmso validity range of the one-loop
theory. (C) 2012 American Institute of Physics. [http://dx.doi. org/10.1063/1.4750044]“
“Background: The role of copy number variation (CNV) has been poorly explored in essential hypertension in part due to technical difficulties in accurately assessing absolute numbers of DNA copies. Droplet digital PCR (ddPCR) provides a powerful new approach to CNV quantitation. The aim of our study was to investigate whether CNVs located in regions previously associated with blood pressure (BP) variation in genome-wide association studies (GWAS) were associated with essential hypertension by the use of ddPCR. Methods: Using a “power of extreme” approach, we quantified nucleic acids using ddPCR in white subjects from the Victorian Family Heart Study with extremely high
(n = 96) and low (n = 92) SBP, providing power equivalent to 1714 subjects selected at random. Results: A deletion of the CNVs esv27061 and esv2757747 on chromosome 1p13.2 was significantly more prevalent in extreme high BP subjects after adjustment for age, body mass index and sex (12.6% selleck chemicals vs. 2.2%; P = 0.013). Conclusions: Our data suggests that CNVs within regions identified in previous GWAS may play a role in human essential hypertension.”
“In this work, a novel tubular photobioreactor with the outer surface periodically shaded by the light-shielding material at pre-set interval was developed. Such design forms periodic light and dark regions along tubular photobioreactor, which creates controllable light/dark cycle and favours the microalgae growth. Experimental results showed that the developed photobioreactor was beneficial for the growth of Chlorella pyrenoidosa and a higher light-to-biomass conversion efficiency was achieved. The effects of the frequency of the light/dark cycle and light intensity on the microalgae cultivation were also investigated. It was revealed that this new design could greatly enhance the photosynthetic efficiency. As compared to conventional photobioreactors, the average biomass productivity could be increased by 21.6 +/- 2.1% when the frequency of created artificial light/dark cycle was set at 100 Hz.