Spectroscopic measurements to determine deuterium and lithium fluxes were performed in recent experiments on FTU with a liquid lithium limiter (LLL) and an actively cooled limiter (CLL) using a multichannel spectrometer and using LiI–Dα filtered photodiodes. Using the S/XB method in combinatio...

The application of lithium to plasma-facing components (PFCs) has long been used as a technique for wall conditioning in magnetic confinement devices to improve plasma performance. Determining the characteristics of PFCs at the time of exposure to the plasma, however, is difficult because they c...

The study of dispersion of phonons of lithium deuteride (LiD) has been presented on the basis of the three-body force shell model which includes the effect of charge transfer of about 0.88 electrons. The results show an excellent agreement with extensively measured phonon dispersion data.

The solubility of LiD in liquid lithium between the eutectic and monotectic temperatures was measured using a direct sampling method. Solubilities were found to range from 0.0154 mol.% LiD at 199 °C to 3.32 mol.% LiD at 498 °C. The data were used in the derivation of an expression for the acti...

Experiment E155 at the Stanford Linear Accelerator Center (SLAC) measured the spin-dependent structure of the proton and neutron, using for the first time 6LiD as the polarized deuteron target material in a high-energy electron beam. This compound provides a significantly higher dilution factor ...

Recovery of tritium from plasma-facing components in fusion devices will be vital to future full-scale operation. Liquid, low-Z materials have demonstrated many inherent advantages over solid first wall materials. To this end, a thermal treatment method in the form of a distillation column for e...

Conditioning of plasma facing components (PFCs) using lithium (Li) evaporation has shown to improve plasma performance in fusion devices by imposing low recycling boundary conditions. It is important to understand the retention and sputtering dynamics of deuterium (D) in Li and Li compound (LiO ...

Lithium deuteride (LiD) was exposed to air for 600 min to determine the effect of air humidity on its microstructure and phase composition. XRD and XPS results revealed that LiOH and Li2CO3 formed at relative humidity values of >30%, whereas only LiOH formed at values

The plasma concentrations of 3β-hydroxy-5-cholestenoic acid, 3β,7α-dihydroxy-5-cholestenoic acid and 7α-hydroxy-3-oxo-4-cholestenoic acid have been compared with that of 7α-hydroxy-4-cholesten-3-one in healthy subjects and in patients with an expected decrease or increase of the bile acid p...

A method for analysis of profiles of conjugated progesterone metabolites and bile acids in 10 ml of urine and 1–4 ml of serum from pregnant women is described. Total bile acids and neutral steroids from serum and urine were extracted with octadecylsilane-bonded silica. Groups of conjugates were...

The developmental metabolism of bile acids can be partly studied by the analysis of bile acid patterns in meconium. Employing modern analytical techniques, it has been found that besides the main bile acids of humans (cholic, chenodeoxycholic, deoxycholic, and lithocholic acids) several “atypic...

The glycine, taurine and sulphate cojugates of 3β,12α-dihydroxy-5-cholen-24-oic acid were synthesized as authentic samples for the analysis of this unusual bile acid. A highly sensitive and specific quantitative assay of the bile acid and related compounds has been developed by selected-ion mo...

Background/Aims: Urinary 3-oxo-Δ4 bile acids have been detected in infants who ultimately died of liver disease. We used qualitative and quantitative methods to compare urinary 3-oxo-Δ4 bile acids in liver disease, determining their composition and evaluating the prognostic implication in pati...

Liver alcohol dehydrogenase (EC 1.1.1.1) is believed to catalyze the oxidation of 26-hydroxylated intermediates in the biosynthesis of bile acids from cholesterol. We have therefore analyzed the composition and size of the bile acid pool in deermice genetically lacking alcohol dehydrogenase. Cho...

Background/Aims and Methods: The etiology of intrahepatic cholestasis of pregnancy (ICP) is unknown. We have performed comprehensive chromatographic and mass spectrometric analyses of progesterone metabolites and bile acids in serum and urine of six patients in order to characterize changes that...

Fermentation of cholic acid with Arthrobacter simplex (IICB 227) under aerobic conditions yielded 3,12-dioxo-23,24-dinorchola-4,6-dienoic acid, 7α-hydroxy-3,12-dioxo-23,24-dinorchol-4-enoic acid, 3α, 7α-dihydroxy-12-oxo-5β-cholan-24-oic acid, 3α,7α-dihydroxy-12-oxo-5β-23, 24-dinorcholan-2...

Background/Aims and Methods: The mechanism(s) behind the effects of ursodeoxycholic acid on serum steroid sulphate profiles in patients with intrahepatic cholestasis of pregnancy is not clear. Conjugated progestone metabolites and bile acids have therefore been analyzed in serum and urine of pat...

Microporous SAPO-11 and highly ordered mesoporous AlSBA-15 with different aluminum contents (with Si/Al ratio of 5 and 10) were synthesized. Thus prepared samples were characterized by BET, pyridine-FTIR and NH3-TPD to investigate their structural and acidic properties. The samples were then tra...

Cobalt stearate and alkylmagnesium halides react to form a dark brown homogeneous solution which catalyses the hydrogenation of olefins at Mg:Co ratios of 3-8:1. Cobalt was shown to be present in the form of a complex dihydride LxCoH2, formed, presumably, by unstable cobalt alkyls splitting off ...

The objective of this pilot study is to investigate the effect of europium(II) stearate additive on the mechanical properties and oxidation resistance of an ultra-high molecular weight polyethylene (UHMWPE), which has been used as an articulating surface in prosthetic devices for many years. It ...