We present observations of the closest region of high mass star formation, Orion BN/KL, performed at both low resolution mode (grating mode) and high resolution (Fabry-Pérot mode) with the Long Wavelength Spectrometer (LWS) on board the Infrared Space Observatory (ISO). We detected the CO rotational transitions from J up = 15 to J up = 49. A LVG analysis of the line fluxes allows to distinguish...

The purpose of this study was to evaluate a technique of pushing a wheelchair at the level of the handle bars as a method for measuring rolling resistance of wheelchair-user systems under different field conditions. Under standardized conditions on a motor driven treadmill, rolling resistance was determined using a 2D strain gauge-based push technique at the level of the handle bars and a commo...

We present observations of the closest region of high mass star formation, Orion BN/KL, performed at both low resolution mode (grating mode) and high resolution (Fabry-Pérot mode) with the Long Wavelength Spectrometer (LWS) on board the Infrared Space Observatory (ISO). We detected the CO rotational transitions from J up = 15 to J up = 49. A LVG analysis of the line fluxes allows to distinguish...

BACKGROUND Intra-arterial administration of radiographic contrast media (CM) is discussed to impair renal perfusion. The pathogenesis of contrast-induced Nephropathy (CIN) is still not clarified. OBJECTIVE This trial was performed to prove the effects of two CM with different molecular structure on renal perfusion. METHODS A prospective, randomized study on 16 pigs was designed to compare t...

Context: Quality of Service (QoS) is a major issue in various web service related activities. Quality models have been proposed as the engineering artefact to provide a common framework of understanding for QoS, by defining the quality factors that apply to web service usage. Objective: The goal of this study is to evaluate the current state of the art of the proposed quality models for web ser...

Um Informationen im Krisenfall ergänzen und optimal zwischen Wirtschaft und Behörden austauschen zu können, müssen Informationsbestände bei Netzwerkkoordinatoren bekannt sein und deren Verfügbarkeit für das Krisenmanagement strukturiert dargestellt werden. Eine Reifegradbestimmung nach ISO/IEC 15504 liefert Kennzahlen darüber, in wieweit bestehende Informationsund Kommunikationssysteme im Krise...

Software-Qualität ist ein entscheidender Faktor für den Erfolg eines softwareintensiven Systems. Die Beherrschung der Qualität stellt aber immer noch eine große Herausforderung für Praxis und Forschung dar. Problematisch ist auch die Vielschichtigkeit und Komplexität von Qualität, die zu einer Vielzahl von nicht integrierten Insellösungen geführt hat. Eine umfassende Behandlung von Qualität wir...

Die Dynamik der Informationstechnologie und steigende Komplexität von Informationssystemen schlägt sich auch im Informationssicherheitsmanagement nieder. Informationssicherheitsstandards haben sich als generische Lösungen für eine Vielzahl von Aufgaben etabliert. Inwieweit derartige Standards die benötigte ganzheitliche Betrachtung vorsehen ist bislang nicht geklärt. Im vorliegenden Beitrag wir...

We explore an economy where number of children is endogenously determined and the cost of raising children is determined by the total number of children in the economy. We show that number of children will be too small compared to the social optimum and that the network effect may magnify the decline of “birthrate”. Our analysis demonstrates that public policies to increase birthrate must take ...

In vitro biochemical experiments have suggested that stimulation of ,B-adrenergic receptors may increase the rate of crossbridge cycling in mammalian myocardium, but recent attempts to demonstrate a mechanical correlate have yielded conflicting results. To investigate this issue, we measured the effect of isoproterenol (ISO) and cAMP-dependent protein kinase (PKA) on unloaded shortening velocit...