Forward march

Sorting by Prefix Reversals and Prefix Transpositions with Forward March

Sorting permutations by reversals and/or transpositions is an important genome rearrangement problem in computational molecular biology. From theoretical point of view, finding efficient algorithms for this problem and its variations are quite challenging. In this paper we consider the problem of sorting unsigned permutations by prefix reversals and prefix transpositions, where a prefix reversa...

March 1835

Snowed very hard all the morning & miserably cold. Went to the R. de Bouloi twice-capi. sermons. The Boulevards crowded with fools in masks.' Monday 2nd. Went to Sanson's-saw nothing new-but I hope, learned something. Saw a good case of fractured radius completely cured without deformity. He did not lecture today, nor did Chomel, I presume, on account of the Carnival. C. had a good case of diss...

March 2003

The toxic element arsenic is widespread in New Zealand’s aquatic and terrestrial environments. Arsenic is ubiquitous in all of the geothermal areas and waterways that fall within or pass-through the Taupo Volcanic Zone, an area in the central North Island that stretches from Mt Ruapehu to White Island (Figure 1). On its way to the surface, super-heated geothermal water dissolves appreciable amo...

March 2012

Feeder design affected payback. The Cinch Net paid for itself in less than 1 month; Tombstone and Ring, 2 months; Hayhut and Tombstone Saver, 4 months; Hay Sleigh, 5 months; Waste Less, 8 months; Cone, 9 months; and Covered Cradle, 19 month. Although the Cinch Net paid for itself in the shortest amount of me, it is only guaranteed for three years. All other feeders claim to last indefinitely, h...

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