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We studied a possibility of fabricating LaN/B grazing incidence multilayer mirrors for 6.

The adsorption and dissociation of carbon dioxide on a Ru(0001) single crystal surface was investigated by reflection–absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD) spectroscopy for CO2 adsorbed at 85 K. RAIRS spectroscopy shows that the adsorption of CO2 on a Ru(0001) single crystal is partially dissociative, resulting in CO2 and CO. The CO vibrational mode was also observed to split into two distinct modes, indicating two general populations of CO present at the surface. Furthermore, a time-dependent blue-shift is observed, which is characteristic of increasing CO surface coverage. TPD showed that coverages of up to 0.3 ML were obtained, and no evidence for chemisorption of oxygen on ruthenium was found.

Resume La penurie d’organes a amene toutes les equipes a assouplir leurs criteres de selection, chez le donneur. Le but de cette etude etait de rapporter une transplantation hepatique effectuee chez une patiente de 55 ans porteuse d’une cirrhose biliaire primitive dont le greffon a ete preleve chez un transplante cardiaque de 50 ans, decede d’hemorragie cerebrale huit mois apres sa greffe. L’intervention et les suites ont ete sans particularite, et la patiente allait bien avec une fonction hepatique normale avec 42 mois de recul. L’analyse de la litterature, en tenant compte des considerations ethiques, de la toxicite hepatique de l’immunosuppression et du statut immunologique particulier de ce greffon hepatique, confirme que le statut de transplante ne permet pas d’exclure a priori du prelevement un donneur potentiel.

The shortage of organ donors has led to progressive softening of selection criteria for organ donation. We report on hepatic transplantation in a 55-year-old woman with primary biliary cirrhosis, whose donor was a 50-year-old heart transplant recipient who became brain stem dead, due to cerebral bleeding 8 months after transplantation. An orthotopic liver transplantation was performed. The postoperative course was uneventful and the recipient was alive and had normal liver function after a 42-month follow-up. Analysis of the literature included ethical consideration, potential hepatotoxic effects of immunosuppressive drugs and modification of the graft immunogenicity. It confirms that transplanted patients should not be a priori excluded from organ donation.

To assess renal replacement therapy in elderly subjects aged 80 years or more in order to depict factors predicting mortality.We retrospectively studied 30 consecutive patients at the time of starting dialysis from January 1995 to August 1995 and followed this population though March 1996.Only past ischemic heart disease and emergency situations were emphasized as predictor factors of mortality risk. No difference according to mortality between hemodialysis and peritoneal dialysis subgroups was found.Excepting usual contraindications for uremic populations, no objective medical criteria are at present time sufficient for excluding chronic renal replacement therapy in very old patients. However, its effect on quality of life must be estimated in order to determine the cost/benefit ratio.

In a recent article J. M. Moore [Moore, J. M. 1968. An n job, one machine sequencing algorithm for minimizing the number of late jobs. Management Sci. 14(1, September) 102–109.] gave an algorithm for minimizing the number of late jobs in a one machine sequencing problem. As indicated by the author, T. J. Hodgson has proposed a simpler version of this algorithm, for which version the proof of optimality is similar to the proof given by the author for the original algorithm. In this note a simpler proof of optimality, based on the inductive principle, will be presented for Hodgson's algorithm. As Moore's algorithm only differs on minor points, this proof covers it as well.