CONCLUSION: Assessment of the management and follow-up of patients having cataract surgery showed that the care provided was in accordance with the expectations of French patients.”
“The current interest in the field of semiconductor spintronics is mostly focused on transition metal-doped and rare-earth metal-doped binary materials. Recently, however, the explorations of metal-doped ternary semiconductors have gained attention due to experimental confirmations of possible high transition temperature in chalcopyrite compounds. Since the chalcopyrites are

ternary materials, there are possibilities of having ferromagnetic selleck chemical or antiferromagnetic configurations, depending on which metal site was substituted by the dopant. Mn-doped ZnGeN2, for example, was found to be antiferromagmetic for Mn-Zn and ferromagnetic for Mn-Ge. A density functional theory study is performed on Gd-doped ternary material ZnGeN2. Our results show Gd-doped ZnGeN2 to be ferromagnetic, independent of the substitution sites. The formation of half-metallic ferromagnetism is possible in this type of material. (C) 2011 American Institute of Physics. [doi:10.1063/1.3553938]“
“A novel strategy to induce parthenocarpy in tomato fruits by the induction of resveratrol biosynthesis in flower tissues was exploited.

Two transgenic tomato lines were considered: a higher resveratrol-producing (35SS) line, constitutively expressing a grape stilbene synthase cDNA, and a lower resveratrol-producing (LoxS) line, expressing stilbene https://www.selleckchem.com/products/chir-98014.html synthase under a fruit-specific promoter. The expression of the stilbene synthase gene affected flavonoid metabolism in a different manner in the transgenic lines, and in one of these, the 35SS line, resulted in complete male sterility. Resveratrol was synthesised either in 35SS or LoxS tomato flowers, at an even higher extent

(about 8-10 times) in the former line. We further investigated whether stilbene synthase expression may have resulted in impaired naringenin accumulation CCI-779 during flower development. In the 35SS flowers, naringenin was significantly impaired by about 50%, probably due to metabolic competition. Conversely, the amount of glycosylated flavonols increased in transgenic flowers, thereby excluding the diminished production of flavonols as a reason for parthenocarpy in tomato. We further investigated whether resveratrol synthesis may have resulted changes to pollen structure. Microscopic observations revealed the presence of few and abnormal flake-like pollen grains in 35SS flowers with no germination capability. Finally, the analysis of coumaric and ferulic acids, the precursors of lignin and sporopollenin biosynthesis, revealed significant depletion of these compounds, therefore suggesting an impairment in structural compounds as a reason for pollen ablation. These overall outcomes, to the best of our knowledge, reveal for the first time the major role displayed by resveratrol synthesis on parthenocarpy in tomato fruits.