Study of dispersions prepared via pulsed laser abitation of metal titanium in water and peroxide water solutions

This work is devoted to the study of titanium dioxide dispersions prepared via pulsed laser ablation of metallic titanium in water and aqueous solutions of peroxide. The influence of the medium pulsed laser ablation and post-irradiation on the shape and size of particles, optical properties and also the stability of dispersions are estimated

Defensome against Toxic Diatom Aldehydes in the Sea Urchin Paracentrotus lividus

Many diatom species produce polyunsaturated aldehydes, such as decadienal, which compromise embryonic and larval development in benthic organisms. Here newly fertilized Paracentrotus lividus sea urchins were exposed to low concentration of decadienal and the expression levels of sixteen genes, implicated in a broad range of functional responses, were followed by Real Time qPCR in order to identify potential decadienal targets. We show that at low decadienal concentrations the sea urchin Paracentrotus lividus places in motion different classes of genes to defend itself against this toxic aldehyde, activating hsp60 and two proteases, hat and BP10, at the blastula stage and hsp56 and several other genes (14-3-3ε, p38 MAPK, MTase, and GS) at the prism stage. At this latter stage all genes involved in skeletogenesis (Nec, uni, SM50 and SM30) were also down-expressed, following developmental abnormalities that mainly affected skeleton morphogenesis. Moreover, sea urchin embryos treated with increasing concentrations of decadienal revealed a dose-dependent response of activated target genes. Finally, we suggest that this orchestrated defense system against decadienal represents part of the chemical defensome of P. lividus affording protection from environmental toxicants

Transcriptomic Analyses of Sexual Dimorphism of the Zebrafish Liver and the Effect of Sex Hormones

10.1371/journal.pone.0053562PLoS ONE81

Traveling waves and pattern formation for spatially discrete bistable reaction-diffusion equations (survey)

Analysis and Stochastic

Spontaneous pubic symphysis disruption and concomitant bladder rupture during competitive squatting: A case report.

Pubic symphysis disruption is typically secondary to external blunt force trauma. This report presents a case of concomitant bladder wall rupture and pubic symphysis diastasis during competitive squatting. This required open bladder repair, small artery embolization, and internal fixation of the pubic symphysis. Surgeons should be aware that pelvic ring instability and organ damage can result even without any external trauma