Well-Defined Hypodensity in the Liver

Mitochondrial Haplogroups and Well Defined Populations

An asymptomatic well-defined brown coloured plaque on the eyebrow in a middle aged woman

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Reduction by well-defined objectives.

Examination of programmes of experimental work involving live animals indicates scope for worthwhile reduction in animal usage by identifying more clearly the objectives of the different stages of a programme. Having a defined first objective for new or transferred methodology as "to optimise the methods", rather than an exploratory "try it with a few animals and modify" approach, is more likel...

Well-Defined Stochastic Petri Nets

Formalisms based on stochastic Petri Nets (SPNs) can employ structural analysis to ensure that the underlying stochastic process is fully determined. The focus is on the detection of conflicts and confusions at the net level, but this might require to overspecify a given SPN model. The problem becomes even more critical when reward processes of interest derived from the basic underlying process...

Allogeneic orthotopic liver transplantation in mice: a preliminary study of rejection across well-defined MHC barriers.

Ten to twelve· week-old male inbred mice were obtained from the Jackson Laboratory, Bar Harbor, Me. Orthotopic liver transplantation was perfonned as described by Qian and coworkers. 1 Briefly, following cholecystectomy and cuff preparations. the liver grafts were placed orthotopically after the native liver had been removed. The suprahepatk vena cava anastomosis was completed with a 10-0 runni...