INTRODUCTION We investigated the incidence of, outcome from and possible risk factors for readmission to the surgical intensive care unit (ICU) at Friedrich Schiller University Hospital, Jena, Germany. METHODS We conducted an analysis of prospectively collected data from all patients admitted to the postoperative ICU between September 2004 and July 2006.… (More)
– The estimation of the amplitude of a sinewave using traditional sine fitting algorithms which are based on square error minimization is biased in the presence of additive noise contrary to what happens generally in linear regression problems. An approximate closed form expression for the estimation error as a function of sinewave amplitude, additive noise… (More)
Magnetic anomalies may be used to constrain magma ascent and are useful as precursors to eruptions especially when correlated with other geophysical and geochemical data. In this paper we present multiparameter data on the magnetics, dome morphology, geochemistry and seismicity associated with the December 2000^January 2001 eruptions, the largest of the… (More)
The Quaternary in the state of Rio Grande do Sul (RS), southern Brazil, is geologically represented by the coastal plain and was originated by successive events of Pleistocene-Holocene marine transgressions and the occurrence of alluvial deposits. This paper aimed to characterize the fish assemblage occurring in a swampy Quaternary area adjacent to Lagoa… (More)
We investigated the diet, feeding strategy, size-related dietary shifts and prey preferences of South American Hoplias aff. malabaricus in an internationally recognized but poorly investigated Biosphere Reserve in southern Brazil. Fish were caught between April 2008 and March 2009 using a variety of fishing gear. The analysis of 113 individuals revealed a… (More)
In this paper an overview of the uncertainty in the results obtained with the histogram test of Analog to Digital Converters is presented. The effect of phase noise, input equivalent additive noise and random phase difference on the number of counts of the cumulative histogram is shown. Theoretical and experimental results are presented.