The high-pressure liquid chromatographic separation of ail of the known metabolites of vitamin D2 and vitamin D3 found in biological fluids has been achieved. This technique has been successfully applied to the analysis of vitamin D mixtures, purification of vitamin D metabolites, and identification of radioactive peaks. Some theoretical bases for the observed resolutions are suggested. Supplem...

During 5 years of operation COMPTEL has collected data covering the entire sky, with exposures ranging from weeks to months. Full sky maps have already been published using data from the rst 3 years of the mission; the additional information now a v ail-able represent a signiicant addition to the COMP-TEL data base and allows us to consolidate previous results. We present the most recent whole-...

Model organisms offer many advantages for the genetic analysis of complex traits. However, identification of specific genes is often hampered by a lack of recombination between the genomes of inbred progenitors. Recently, genome-wide association studies (GWAS) in humans have offered gene-level mapping resolution that is possible because of the large number of accumulated recombinations among un...

It is widely feared that outward FDI gradually hollows out domestic manufacturing and displaces local workers. We address this concern by drawing on exceptionally We would like to thank Michaela Rank for excellent research assistance. orresponding author) l In te for the World Economy D Weg 120, 05 , Germany ne: -431-8814-269 +4 31-8814-500 ail [email protected] Peter NUNNENKAMP l Institut...

1 of 2 DESCRIPTION Rupture of mitral-aortic intervalvular fi brosa aneurysm is a rare complication of aortic valve endocarditis. 1 A 43-yearold man presented with persistent fever and progressive dyspnoea of 3 months duration. On admission, he was in fl orid pulmonary oedema and clinical examination showed fi ndings of severe aortic regurgitation. His electrocardiogram revealed complete heart b...