Ethnic groups or national minorities are far from being understood as stable and convergent units in the nation's security efforts. This issue is backed by a substantial scientific record, treated differently relation to prevalence of certain political, economic, social and, above all, cultural factors. From an academic point view, record ethnicity-security relations not uniform either. Differe...

Five strains ofa brown phototrophic sulfur bacterium (Chlorobium phaeobacteroides) were isolated from the chemocline of the Black Sea (80-m depth). All contain bacteriochlorophyll e as the main photosynthetic pigment. The strains revealed extreme low-light adaptation of growth compared to 12 other green and purple sulfur bacterial strains. At very low light intensities (~4 PEinst mm2 s’), the B...

The black marlin (Istiompax indica) is one of the largest bony fishes in the world with females capable of reaching a mass of over 700 kg. This highly migratory predator occurs in the tropical regions of the Pacific and Indian Oceans, and is the target of regional recreational and commercial fisheries. Through the sampling of ichthyoplankton and ovaries we provide evidence that the relatively h...

AIMS To determine whether myelodysplastic syndromes (MDS) are associated with sea blue histiocytosis in the bone marrow. METHODS A retrospective review of bone marrow aspirates from 35 patients presenting consecutively with MDS and from 20 patients with each of the following: normal marrow appearance (routine staging for non-Hodgkin's lymphoma), polycythaemia rubra vera, immune thrombocytopen...

A bather on holiday in Kenya injured a finger on a spiny marine creature living on the sea bed. A skin biopsy specimen from the injured finger contained several black spines about 0.5 mm in diameter and up to 1.5 cm in length. Spines removed from the specimen were embedded in plastic resin to facilitate transverse sectioning. Light microscopical examination using crossed polarisers showed an or...