52Rh0.48, which is generated by the optical heating. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3634114]“
“To investigate the ability of sensitive and tolerant variety of Brassica juncea to adapt to a saline environment in a field, we examined the activities of antioxidant enzymes in relation to photosystem II, chlorophyll a fluorescence, photosynthetic pigment concentration, protein (D1) and proline in plants exposed to salt stress. We observed a greater click here decline in the photosynthetic rate (Delta F/Fm’) and electron transport rate (ETRsat) and saturating photosynthetically active photo flux density (PPFDsat) under salt stress in var. Urvashi (sensitive variety)

than in var. Bio902 (tolerant variety). Var. Urvashi was found to be more sensitive to high salinity. In var. Bio902, chlorophyll a, chlorophyll b and total chlorophyll concentrations were NVP-HSP990 higher than in the sensitive variety. Proline and protein contents were also higher in var. Bio902 as compared to their lower accumulation in var. Urvashi. The improved performance of the var. Bio902 under high salinity was accompanied by an increase in ascorbate peroxidase (APX, EC 1.11.1.11) and catalase (CAT, EC 1.11.1.6), though no salt-dependent increase in the activity of superoxide dismutase (SOD, EC 1.15.1.1) was observed. However, no such increase

in APX and CAT was observed in var. Urvashi, though there was significant increase in SOD activity. These results suggest Selleckchem Tyrosine Kinase Inhibitor Library that var. Bio902 is potentially more tolerant to salt damage and is associated with better adaptive responses found in var. Bio902 than var. Urvashi. Increased photoinhibition in var. Urvashi as observed by its reduced thylakoid membrane protein, D1 probably results from the greater photosynthetic damage caused by salt stress than var. Bio902. (C) 2012 Elsevier Masson SAS. All rights reserved.”
“A detailed

study on the resulting impurity profile in Si samples implanted with high doses of Ti and subsequently annealed by pulsed-laser melting (PLM) is reported. Two different effects are shown to rule the impurity profile redistribution during the annealing. During the melting stage, the thickness of the implanted layer increases while the maximum peak concentration decreases (box-shaped effect). On the contrary, during the solidifying stage, the thickness of the layer decreases and the maximum peak concentration increases (snow-plow effect). Both effects are more pronounced as the energy density of the annealing increases. Moreover, as a direct consequence of the snow-plow effect, part of the impurities is expelled from the sample through the surface. (C) 2011 American Institute of Physics. [doi:10.1063/1.3626466]“
“Prosthetic rehabilitation of the edentulous posterior maxilla with implant-supported prostheses frequently presents a challenge for the oral surgeon because of the lack of bone due to alveolar ridge resorption or maxillary sinus pneumatization.