We examine the performance of quantum error correcting codes subjected to random Haar distribution transformations of weight t. Rather than requiring correction of all errors, we require some high probability that a random error is corrected. We find that, for any integer i and arbitrarily high probability p < 1, there are codes which perfectly correct errors up to weight t and can correct erro...

PURPOSE The purpose of this study is to determine dose delivery errors that could result from random and systematic setup errors for head-and-neck patients treated using the simultaneous integrated boost (SIB)-intensity-modulated radiation therapy (IMRT) technique. METHODS AND MATERIALS Twenty-four patients who participated in an intramural Phase I/II parotid-sparing IMRT dose-escalation prot...

The error in satellite precipitation-driven complex terrain flood simulations is characterized in this study for eight different global satellite products and 128 flood events over the Eastern Italian Alps. The flood events are grouped according to two flood types: rain floods and flash floods. The satellite precipitation products and runoff simulations are evaluated based on systematic and ran...

primary information about different methods of vegetation sampling is important to researchers to decide about their sampling. in this study we applied five distance methods (closest individual, nearest neighbor, random pairs, point-centered quarter and angle orderd) to estimate plant density in three vegetation types including artemisia sieberi, juncus littoralis and punica granatum in mazanda...

THE SEVEN books of Epidemics ("Epidemiae": visits to cities) which come to us in the Hippocratic Corpus fall into three groups, Epid. I and 3, Epid. 2, 4, and 6, and Epid. 5 and 7. Like the other works of the Corpus, their authorship, provenance, and dates are in doubt.' Traditionally since Galen's time Epid. I and 3 have been admired as Hippocrates' work or as the work of a "Coan" school conne...

[1] The definition and quantification of uncertainty depend on the error model used. For uncertainties in precipitation measurements, two types of error models have been widely adopted: the additive error model and the multiplicative error model. This leads to incompatible specifications of uncertainties and impedes intercomparison and application. In this letter, we assess the suitability of b...

We study the problem of accurately determining the position of a mobile device using imprecise off-the-shelf GPS devices. Existing work has not yet explored the impact of mobility on GPS error for off-the-shelf devices. We demonstrate that a naive use of GPS in mobile situations can lead to significant errors. Based on both stationary and mobile vehicular experiments, we identify four distinct ...