The technique can be used to create a posterior capsulectomy of a desirable size in a controlled manner to avoid destabilization of the IOL. It can be applied selectively in cases of pediatric cataract surgery.”
“We investigated the correlation between morphology and electron spin relaxation time in GaAs/AlGaAs multiple quantum wells (MQWs)
on misoriented GaAs(110) substrates. For the MQW on a 2 degrees-misoriented GaAs(110), formation of wide (110) step terraces due to step bunching was observed. Measurements of the temperature dependence of the electron spin relaxation time tau(s) showed that the D’yakonov-Perel’ (DP) spin relaxation was suppressed even in the MQW on the 2 degrees-misoriented GaAs(110) Doramapimod owing to the step terrace formation. In contrast, Nec-1s purchase in the MQW on a 5 degrees-misoriented GaAs(110), in which the surface showed ripple patterns, the tau(s) became shorter than that on the on-axis GaAs(110), which we attribute to the enhanced electron spin relaxation originating from the bulk inversion asymmetry term in the DP mechanism that is induced by the substrate misorientation. (C) 2011 American Institute of Physics. [doi:10.1063/1.3622586]“
“Centella
asiatica (L.) Urban has been traditionally used for the treatment of various disease and as a food for thousands of years in various parts of the world including
eastern Asia, China and India. The goal of this study was to investigate the effects of Centella asiatica aqueous leaf extract on the induction of spermatogenic cell apoptosis in male rats. After lethal dose (LD50) assessment of plant extract, rats were divided in five groups. The experimental groups received orally 10, 50, 80 and 100 mg/kg aqueous leaf extract daily for 60 days and the control group received just water. After 60 days, body and testis weight were measured and blood samples were taken from the heart. To evaluate apoptosis and histological changes, tissue samples obtained from rat testes were stained by TUNEL assay and hematoxylin and eosin stain. AC220 Results showed that the sperm count, motility, and viability and the number of spermatogenic cells in the seminiferous tubules were significantly decreased compared with the control group. The number of apoptotic germ cells per seminiferous tubule cross-section was significantly increased in the experimental group (18.11 +/- A 3.5) compared with the control group (8.7 +/- A 0.81) (P < 0.05). Serum testosterone, follicle-stimulating hormone, and luteinizing hormone levels also showed significant decreases in the experimental groups (P < 0.05). There was also a significant decrease in testis weight in experimental groups compared with the control group (P < 0.05).