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OBJECTIVE To determine the vitamin D status of pregnant women from non-European ethnic minorities in South Wales. DESIGN Prospective study. SETTING Llandough Hospital, Cardiff, South Wales. SAMPLE One hundred and sixty pregnant women from a non-European ethnic minority population in South Wales. METHODS Biochemical screening of vitamin D status was(More)
We report results from the NEMO-3 experiment based on an exposure of 1275 days with 661 g of (130)Te in the form of enriched and natural tellurium foils. The ββ decay rate of (130)Te is found to be greater than zero with a significance of 7.7 standard deviations and the half-life is measured to be T(½)(2ν) = [7.0 ± 0.9(stat) ± 1.1(syst)] × 10(20) yr. This(More)
This paper describes a clinical study that is being conducted in 15 countries world-wide via the internet. The study concerns the removal of Factor VIII inhibitors in haemophilic children. The suitability of the Internet for this type of study is explored together with the technology (Active Server Pages, Secure Sockets Layer) that is involved in the(More)
This project has been concerned with the comparison of children born as a result of fresh embryo transfer (IVF) with children conceived and born via the natural process. The former included children who were the single outcome of the birth (singletons) and children who were the result of a multiple birth (e.g. twins, triplets). A computer database was(More)
Cholinesterase is a naturally occurring enzyme in the human body. Its importance became apparent when it was recognised that patients undergoing surgery and carrying abnormal genes for this enzyme were unable to recover from a dose of muscle-relaxant. It is therefore important to know the Genotype (the pair of genes) of a patient who might undergo surgery.(More)
The BiPo-3 detector is a low radioactive detector dedicated to measuring ultra-low natural contaminations of 208Tl and 214Bi in thin materials, initially developed to measure the radiopurity of the double β decay source foils of the SuperNEMO experiment at the μBq/kg level. The BiPo-3 technique consists in installing the foil of interest between two thin(More)
Introduction In order to produce negative hydrogen or deuterium ion beams, the output of a positive ion source must undergo charge exchange with neutral atoms such as cesium. The maximum efficiency of this process is 217 for 800-eV H + interacting with cesium.1 It has been suggested that by optically exciting the cesium, the efficiency can be improved. 2(More)