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Popular Abstract in Swedish Kontrollmekanismerna rörande blodcirkulationen i den mänskliga fetoplacentära enheten är fortfarande inte fullständigt kända, trots genomgripande undersökningar. Det är dock känt att den är viktig för att kunna bibehålla en normal graviditet och för att kunna frambrigna ett friskt nyfött barn. Om kontrollen brister kan utgången försämras i form av tillstånd såsom preeklIn this present study the population of endothelin-like receptors in the human umbilical artery was examined in vitro in different parts of the umbilical cord. Immunohistochemistry revealed ETB receptors in the endothelium and an uneven distribution of ETA receptors in the smooth muscle of the arterial wall, when comparing different parts of the umbilical artery. ET-1 induced vasoconstriction wa

The topic of the thesis is codesign of flexible real-time control systems. Integrating control theory and real-time scheduling theory, it is possible to achieve higher resource utilization and better control performance. The integration requires new tools for analysis, design, and implementation. The problem of scheduling the individual parts of a control algorithm is studied. It is shown how sub

This paper explores the lack of common basic assumptions among different theoretical orientations which constitute the field of sociology of law. It argues that sociology of law lacks theoretical coherence and is, therefore, unable to produce fundamental paradigms. The solution to the paradigmatic shortcomings of sociology of law is, then, sought outside the traditional framework of law and sociol

The effects of curvature and wrinkling on the growth of turbulent premixed flame kernels have been investigated using both 2D OH planar laser-induced fluorescence (PLIF) and 3D direct numerical simulation (DNS). Comparisons of results between the two approaches show a high level of agreement, providing confidence in the simplified chemistry treatment employed in the DNS, and indicating that chemis

A capillary gas chromatographic (GC) method using selected-ion monitoring (SIM) was developed for the analysis of cotinine (C.A.S. No. 486-56-6) in human urine. The method is based on basic extraction of cotinine from 2 ml of urine into dichloromethane. After evaporation of the dichloromethane solution to dryness, 100 microliters of toluene were added, prior to GC-mass spectrometric (MS) analysis.

OBJECTIVE: to correlate the echostructural characteristics of carotid plaques with neurological symptoms and cerebral infarcts. MATERIALS: one hundred and five plaques were studied in 74 patients by colour-flow duplex ultrasound: 39 were symptomatic and 37 were associated with brain infarction on CT scanning. METHODS: the images were digitalised for computer-assisted image standardisation and divi

The location and activity of saprophytic and arbuscular mycorrhizal (NM) fungal phosphatases have been investigated with a fluorogenic substrate (ELF) that forms a fluorescent crystalline precipitate at the site of phosphatase activity. This ELF substrate method was compared with other detection methods such as fast blue RR salt staining and p-nitrophenyl phosphate. The ELF substrate was successfu

We discuss resonance-enhanced two-photon ionization (RETPI) and presentschemes of successive RETPI of the elements C, N, and O in nebulae.RETPI is activated by intrinsic radiation stored in the form of trappedspectral lines of HI, HeI, and HeII in the optically thick nebula. Therate of this two-step photoionization is comparable with or exceeds thelow recombination rate of the photoions formed in

We study deterministic algorithms for gossiping problem in ad hoc radio networks. The efficiency of communication algorithms in radio networks is very often expressed in terms of: maximum eccentricity D, maximum in-degree Δ, and size (number of nodes) n of underlying graph of connections. The maximum eccentricity D of a network is the maximum of the lengths of shortest directed paths fro

A short summary of the present status of prompt particle decays in the mass A similar to 60 region is presented. It includes recent results from a GAMMASPHERE experiment, which aimed at the combined high-resolution spectroscopy of light charged particles and gamma-rays to allow for more detailed studies of known decays and the identification of new cases of discrete prompt proton and a-particle em

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Essay regarding current debates in Sweden about the various functions of art criticism in relation to the public sphere, with a special focus on the role of the artcritic Ulf Linde.