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Software reliability is a frequently used term, but very seldom the reliability is under control during a software development project. This paper presents a method, Statistical Usage Testing (SUT), which gives the possibility to estimate and predict, and hence control the software reliability. SUT is the reliability certification method described as a part of Cleanroom software engineering. The m
Little is known about young adults' use of strip clubs and prostitution during their holidays abroad. This study examined this issue with a sample of 1125 Danish tourists between the ages of 16 and 34, and sought data about the frequency with which they paid for sex and attended strip clubs while they were on holiday. The tourists were surveyed at a Bulgarian airport before their return trip home.
Over the years, many jet clustering algorithms have been proposed for the analysis of hadronic final states in e+e- annihilations. These have somewhat different emphasis and are therefore more or less suited for various applications. We here review some of the most used and compare them from a theoretical and experimental point of view.
BACKGROUND: Situational needs of health care facilities inform the optimal allocation of resources and quality improvement efforts. This study examines surgical care delivery metrics at a tertiary care institution in Liberia. METHODS: We retrospectively reviewed operative and ward logbooks from January 1 to December 31, 2012. Data parameters included patients' age, diagnosis, procedure, mortality,
Since 2001 the School of Dentistry of Malmö University in Sweden has used an alternative procedure based on results of an investigation supported by the Swedish Council for the Renewal of Undergraduate Education. The investigation concerned possibilities of predic¬ting school performance on the basis of an interview, as well as tests of general intelligence, spatial ability, manual dexterity, empa
Lower urinary tract (LUT) smooth muscle can be relaxed by drugs that increase intracellular concentrations of cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP). Both of these substances are degraded by phosphodiesterases (PDEs), which play a central role in the regulation of smooth muscle tone. The distribution and functional significance of PDE enzymes vary in differ
Using the configuration interaction technique, the energy spectra of 2s(2)2p(4), 2s2p(5), 2s(2)2p(3)3s, 2s(2)2p(3)3d, configurations of oxygen-like chlorine Cl X have been calculated. The obtained data are used for the evaluation of wavelengths and oscillator strengths of all possible one-electron and two-electron 2s(2)2P(3)3p-2s2p(5) electric dipole transitions. The calculated results are compare
BACKGROUND: Microarray experiments are increasing in size and samples are collected asynchronously over long time. Available data are re-analysed as more samples are hybridized. Systematic use of collected data requires tracking of biomaterials, array information, raw data, and assembly of annotations. To meet the information tracking and data analysis challenges in microarray experiments we reimp
In 1987 we noticed excess adipose tissue in a patient with arm lymphedema and later, objective studies confirmed this clinical finding in patients with non-pitting arm lymphedema following breast cancer. A prospective study was begun in 1993, and its long-term results (15 years) shows overall complete reduction of the excess volume in patients with non-pitting arm lymphedema and that adipose tissu
Configuration management (CM) includes synchronizing and supporting developers in their common development and maintenance of a system. The rapid development of the Internet and time-to-market pressure affects software development. In order to utilize skilled personnel despite geographical location, groups of developers are now working all over the world on the development of common systems, a sit
Arterial cardiovascular disease and neighborhood deprivation are associated. However, no study has determined whether neighborhood deprivation is associated with venous thromboembolism (VTE). We aimed to determine whether there is an association between neighborhood deprivation and hospitalization for VTE, and whether effects vary across sociodemographic groups. The entire Swedish population aged
Popular Abstract in Swedish Även om vi i dagens samhälle försöker minska vårt beroende av förbränningsprocesser är förbränning fortfarande vår största energikälla och förväntas så förbli under en lång tid. Därför är det viktigt att effektivisera förbränningsprocesserna för att maximera den energi som utvinns medan utsläppen samtidigt minimeras. En av de oönskade biprodukterna vid förbränning är soThis work has been aimed at developing and applying laser-induced incandescence (LII) for flame soot characterization. The basic principle of LII is rapid heating of the soot particles to temperatures of 3500-4000 K by short laser pulses. Thereby the intensity of the soot incandescence is increased. By detection of this increased incandescence and analysis of the detected signal, the volume fracti
In this paper, we study the problem of joint permutor analysis and design for J-dimensional multiple turbo codes with J constituent encoders, J>2. The concept of summary distance is extended to multiple permutors of size N and used as the design metric. Using the sphere-packing concept, we prove that the minimum length-2 summary distance (spread) Dmin,2 is asymptoticly upper-bounded by O(N J-1/J).
Recent research and practice have led to the development of relatively complex methods for inquiry which can be applied by human analysts wishing to investigate an organizational problem-space. However, it has appeared until recently that use of these methods could not be supported by software tools, since the limitations of traditional mathematical algorithms constrained their development. In con
Fast and reliable time and frequency synchronization is crucial for packet-based orthogonal frequency division multiplex (OFDM) systems. In this paper we compare and analyze preambles for OFDM systems based on repeated OFDM data symbols or repeated short pseudonoise sequences (PN-sequences). We make an analytical evaluation for AWGN channels and simulate the performance in oneand two-tap Rayleigh
