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Incidence of nephrogenic systemic fibrosis at a large university hospital in Sweden.

Objective. Nephrogenic systemic fibrosis (NSF) is a rare condition that may follow administration of gadolinium-based contrast media (Gd-CM) in patients with renal insufficiency. This study was initiated to determine the incidence of NSF at Skåne University Hospital, Malmö, in Sweden. Material and methods. During the period January 2001 to December 2008 10 650 patients underwent magnetic resonance

Analysis and design of a double-quadrature CMOS VCO for subharmonic mixing at Ka-band

In this paper, we analyze the potentials of a four-phase 14-GHz CMOS voltage-controlled oscillator, tailored to a sub-harmonic receiver, for signal processing at Ka-band. When mild phase accuracies between in-phase and quadrature down-converted signals are required, the four-phase oscillator displays roughly the same phase noise figure-of-merit as quadrature oscillator counterparts. However, the o

Porous Silicon -an enzyme coupling matrix for micromachined reactors

Popular Abstract in Swedish Avhandlingen beskriver forskningen kring miniatyriserade enzymreaktorer - nyckelkomponenter i system för diabetsövervakning. Målet är att systemet kontinuerligt och under flera dagar skall kunna mäta glukosstatus hos bäraren. Provtagningstekniken för systemet är mikrodialys; en prob instucken i bukfettvävnaden ger ett prov som innehåller glukos. Analysen av detta proThe development of a miniaturised silicon wafer integrated enzyme reactor is described. The reactor was micromachined by anisotropic wet etching of (110) silicon. The enzyme glucose oxidase (GOx) was coupled to the reactor surface with standard methods of immobilising enzyme to silica. The glucose turn-over rate was monitored following a colourimetric assay. The advantage, in terms of high surface

Porous Silicon Microbioreactors - Applications and Technology

Microfluidic systems have become one of the most interesting fields in the research of chemical analysis. Miniaturized systems exhibit numerous practical advantages when compared with traditional batch-scale synthesis such as lower sample volumes, increased control of the reactions and higher sample throughput. This thesis describes the development and applications of a parallel channel microreact

Hyperbolic systems with relaxation: characterization of stiff well-posedness and asymptotic expansions

The Cauchy problem for linear constant-coefficient hyperbolic systems ut + ∑j A(j)uxj = (1/δ)Bu + Cu in d space dimensions is analyzed. Here (1/δ)Bu is a large relaxation term, and we are mostly interested in the critical case where B has a non-trivial null-space. A concept of stiff well-posedness is introduced that ensures solution estimates independent of 0 < δ 1. Stiff well-posedness is charact

MACIS: Minimisation of and Adaptation to Climate Change Impacts on BiodiverSity

The recently finished EU funded project MACIS reviewed observed and projected climate change impacts on biodiversity. It assessed mitigation and adaptation options. It also reviewed and developed methods to assess future impacts of climate change on biodiversity including the identification of policy options to prevent and minimise these impacts.