Arun Vijayaragavan

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The value of selective surgery for abdominal stab wounds was assessed in a prospective study of 226 patients admitted over an 18-month period. Two died soon after admission and before operation, the indications for which were signs of peritoneal irritation or haemorrhage, evisceration of bowel and omental protrusion. Of the 226 patients, 113 were selected(More)
Transient reflectivity measurements using ultrashort pulse pump-probe techniques can provide very useful information on fast carrier dynamics in semiconductors. Several non-trivial problems encountered in measuring reflectivity changes have been described. These changes can be very small (ΔR/R ~10 or less) and hence measuring these small changes is not(More)
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