The Winchcombe meteorite, a unique and pristine witness from the outer solar system.

Direct links between carbonaceous chondrites and their parent bodies in the solar system are rare. The Winchcombe meteorite is the most accurately recorded carbonaceous chondrite fall. Its pre-atmospheric orbit and cosmic-ray exposure age confirm that it arrived on Earth shortly after ejection from a primitive asteroid.

Microsatellite flanking region similarities among different loci within insect species.

Although microsatellites are ubiquitous in eukaryota, the number of available markers varies strongly among taxa. This meta-analysis was conducted on 32 insect species. Sequences were obtained from two assembled whole genomes, whole genome shotgun (WGS) sequences from 10 species and screening partial genomic libraries for microsatellites from 23 species.

Genetic differentiation of a European caddisfly: past and present gene flow among fragmented larval habitats.

We describe the genetic structure of a freshwater insect species and interpret it in terms of present-day population dynamics and possible postglacial colonization history. The sampling regime represented a large area of the species range in northwest Europe, particularly focusing on Britain, a region relatively neglected in molecular population genetic studies. Plectrocnemia conspersa generally showed low levels of genetic variation across the sampled populations (Nei's D = 0.

Artificial nutrition support for patients in the Cambridge Health District.

This paper describes the results of a one-year prospective survey of patients who received artificial enteral and parenteral nutritional support at home and in the hospitals of the Cambridge Health District. Enteral tube feeding accounted for most of the artificial nutritional support provided both in hospital and in the community. The findings of the study suggest that nutritional support is an important adjunct to the treatment of serious clinical disorders, and that the care of such patients can be improved by the establishment of a multidisciplinary enteral and parenteral nutrition team.