The radial velocities of the 13 globular clusters in the Large Magellanic Cloud have a dispersion of 28 km s relative to the HI rotation curve of the LMC, compared to a dispersion of 30 km s with regard to the mean globular cluster velocity. This shows that, contrary to a suggestion by Schommer et al. (1992), one cannot yet rule out the possibility that the LMC globular clusters formed in a pre...

background: monoclonal antibodies have been employed extensively for the identification of leishmania species, development of diagnostic tests and in the characterization of defined leishmanial antigens. objectives: identification and characterization of  leishmania spp. directly from cutaneous lesions of infected individuals. methods: an immunoperoxidase test (avidin-biotin technique) using mo...

Children with autism exhibit a deficit in the comprehension and creation of narrative which impacts their social world. Our ongoing research agenda is to find ways of developing interactive learning environments which enhance the ability of individual children with autism to deal with narrative and thus the social world. The study reported here involved 12 children in a longitudinal study which...

There have been numerous calls to incorporate narrative more explicitly into social science methods. Towards that end, this paper identifies a range of choices concerning the analysis of narrative data. I argue that preserving the most basic features of narrative (sequential structure) is helpful, but that incorporating more aspects of narrative (such as the focal actor(s), narrative voice, and...

The discovery in 2004 by Mars exploration rover Opportunity of sedimentary rocks with centimeter-scale trough cross-bedding is one of the compelling lines of evidence for flowing water on the Martian surface. The rocks contain a significant evaporite component mixed with weathered mafic silicates, suggesting that the aqueous fluid in contact with the sediments must have been of very high ionic ...