Gastrointestinal nematodes of Ovis aries in Eastern Cape, South Africa and an evaluation of current anthelmintic procedures

Humans have known about helminth infections since ancient times. Today half of the human population is plagued by a nematode infection. Nematodes are responsible for billions of dollars in global crop damage annually and have had devastating effects on the global livestock industry. Due to the lack of a vaccine, and only a handful of approved classes of anthelmintics, nematode resistance has become a serious global phenomenon, and the South African commercial sheep industry has been one of the worst affected worldwide. The current study used fecal float parasitology to determine the nematode species found on a commercial sheep farm in Eastern Cape, South Africa, and the severity of their burden. There were five main species of nematodes found: Strongyles, Strongyloides spp., Trichuris ovis, Nematodirus spathiger, and Haemonchus contortus. The farm had two different populations of sheep – the flock population which were of acceptable wool quality and the stud population which were of superior wool quality. The two populations were compared to each other. There was no significant difference in nematode species present or severity of infection between the two populations. Although the nematode burden of this farm was not as severe as many other South African farms, a discussion of current anthelmintic treatments and possible practices that may improve animal health and wool quality are discussed

Carney Hospital's Maternity Service Plan: A study of one hundred and eleven patients admitted to the Carney Hospital's prenatal clinic during the months of May, June, July, 1949

Thesis (M.S.)--Boston Universit

Overt Research Project- 'A Fieldguide to Dark Places - South Edition'

Directed by artist researcher Neal White, Office of Experiments collaborated with researcher and artist Steve Rowell a project manager at the Center for Land Use Interpretation for 18 months in an exchange of methods, standard and experimental, fieldwork and mapping processes. The development of a specifically named research method 'Overt Research' was used to label an inversion of the direction of technologies and techniques exploited in surveillance and security control, and was used in this research to document both the real and imaginary spaces of secrecy in the UK, initially near to Southampton. Using photographic and GIS data sites of experimentation, intelligence and knowledge not normally accessible to the public were brought together in a drupal database. With a taxonomy and vocabulary based on levels of transparency of sites the research output brought together discourse concerning the UK and its techno-scientific and military complex and the public imaginary in relation to these sites. 'A Fieldguide to Dark Places - South Edition' was a central part of the larger exhibition, Dark Places, that White co-curated at John Hansard Gallery in 2009-10. ORP was launched as an 'open project' that also engages members of the public and amateur enthusiasts, and now incorporates them into the research process through attendance of planned activities and events. Many works are also included in 'Critical Dictionary' (Blackdog 2012) and were also exhibited in an installation at Blackdog Gallery, London 2012. Featured extracts from the database appeared in a 6 page article as part of Blueprint magazine edition examining new topographies. March 2010. Critical excursions / mediated bus tours using the ORP have further been supported by ESCR (Experimental Ruins, UCL, London), Big Picture (Secrets of Portland, Portland, Dorset 2011) and The Heritage Lottery Fund (London Orbital Tour 2012)

Unitary Braid Representations with Finite Image

We characterize unitary representations of braid groups $B_n$ of degree linear in $n$ and finite images of such representations of degree exponential in $n$.Comment: 17 page

Ground-Based Gamma-Ray Astronomy at Energies Above 10 TeV: Searching for Galactic PeV Cosmic-Ray Accelerators

The origin of Galactic CRs up the knee energy remains unanswered and provides strong motivation for the study of gamma-ray sources at energies above 10 TeV. We discuss recent results from ground-based gamma-ray Cherenkov imaging systems at these energies as well as future observational efforts in this direction. The exciting results of H.E.S.S. give clues as to the nature of Galactic CR accelerators, and suggest that there is a population of Galactic gamma-ray sources with emission extending beyond 10 TeV. A dedicated system of Cherenkov imaging telescopes optimised for higher energies appears to be a promising way to study the multi-TeV gamma-ray sky.Comment: Presented at the conference 'Physics At The End Of The Galactic Cosmic Ray Spectrum' Aspen (April 2005) see http://www.cosmic-ray.org/conf/index.html (8 pages, 6 figures