SETTING:

Royal Victoria Hospital, Barrie, Ontario, Canada.

METHODS: Cataracts were selleck graded using Scheimpflug imaging (Pentacam) in consecutive patients. In Group 1, surgery was performed with no change in parameters. In Group 2, adjustments were made preoperatively in fluidics and phaco power to reflect the cataract grade determined by Scheimpflug imaging. Parameters assessed in both groups included effective phaco time (EPT), balanced salt solution (BSS) use, and needle time to remove the cataract.

RESULTS: There were 200 patients in each group. Emulsification and aspiration of higher and lower grades of cataract took statistically significantly less EPT and BSS in Group 2 (preoperative parameter adjustments) than in Group 1. The needle time for the higher grades of cataract was statistically significantly less in Group 2. For cataracts of a middle grade (2 to 3; 63% of cases), there was no statistically significant difference between standard phaco settings and adjusted settings. The cataract was effectively aspirated in both groups.

CONCLUSION: Preoperatively adjusting phaco

parameters based on cataract grade helped improve overall efficiency by reducing the amount of energy and fluid used in the eye and reducing overall phaco time.”
“Chitosan (CS) can be used as adsorbent in the treatment of effluents from the textile industry, especially for negatively charged dyes, due to its cationic polyelectrolyte nature. In this work, the adsorption of a model Combretastatin A4 purchase dye, methyl orange, xylenol orange on hollow CS microsphere is analyzed. Adsorption of methyl orange, xylenol orange onto cross-linked CS is realized by means of analysis of pH influence, agitation time, and initial concentration of the dye. The results obtained from the experiment shows that the adsorption capacities of the two dye-hollow CS microsphere mTOR inhibitor systems are higher than those stated in other literature using CS particles. The difference in the degree of adsorption may also be attributed to the size and chemical structure of the dye molecule. The

results have demonstrated that monovalent and smaller dye molecular sizes have superior capacities due to the increase in dye/CS surface ratio in the system and deeper penetration of dye molecules into the internal pore structure of hollow CS microsphere. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 119: 2065-2071, 2011″
“The electronic scattering rates in metals after ultrashort pulsed laser heating can be drastically different than those predicted from free electron theory. The large electron temperature achieved after ultrashort pulsed absorption and subsequent thermalization can lead to excitation of subconduction band thermal excitations of electron orbitals far below the Fermi energy.