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Journals and Conferences
A screening method for the analysis of seven anti-viral drugs in poultry tissue has been developed. These include anti-influenza drugs (amantadine, rimantadine, zanamivir and oseltamivir and its carboxylate metabolite), anti-herpes drugs (acyclovir and ganciclovir) and an immunomodulator (imiquimod). Poultry tissue was extracted in acetonitrile:water:acetic… (More)
A method is reported for the determination of the Fusarium mycotoxin moniliformin in cereals. The samples after extraction with acetonitrile/water are cleaned-up on a combination of reverse-phase and strong-anion exchange disposable cartridge columns. The extract is then analysed by ion-pair HPLC with UV detection. The method gave recoveries from 81 to 96%… (More)
Di-(2-ethylhexyl)phthalate (DEHP) and total phthalate ester plasticizer levels were determined in milk, cream, butter and cheese samples from a variety of sources from three European countries (UK, Norway and Spain). Samples of milk (from Norway) obtained at various stages during collection, transportation and packaging operations showed no apparent trends… (More)
Most food containing drug residues is consumed after cooking or processing, yet surveillance for these residues is almost always conducted on raw tissue. This investigation was to establish the effect of cooking on residues of the nitroimidazole drugs dimetridazole and ronidazole in chicken muscle and egg, to enable dietary intake calculations based on… (More)
A commercially available system is described for the fully automated clean-up and high-performance liquid chromatographic (HPLC) analysis of aflatoxins in foods and animal feeds. The system marketed primarily for handling solid-phase extraction columns has modified software to facilitate use with immunoaffinity columns. Sample extract clean-up followed by… (More)
Immuno-biosensor inhibition assays for the detection of streptomycin and dihydrostreptomycin residues in whole cows' milk, honey, pig kidney and pig muscle are reported. The antibody showed high cross-reactivity with dihydrostreptomycin in various foodstuffs (buffer 103%, milk 96%, honey 84%, kidney extract 129% and muscle extract 98%). There was no… (More)
Samples of dried figs and fig pastes from Turkey supplied voluntarily by UK importers and retailers during the period November 1988 to January 1989 showed both a high incidence and high levels of contamination with aflatoxins. In the samples tested, 24% had total aflatoxin concentrations above 10 micrograms/kg, with the highest level being 165… (More)
Comparisons across populations of baboons (Papiospp) reveal that the birth rate is inversely related to the adult sex ratio. Evidence is adduced to show that this is a consequence of competition among females for access to males.
Analyses of data from field studies of baboons (genusPapio) show that observers tend to select the largest groups available to them in their study populations up to a limiting group size of about 80–100 animals. This is likely to introduce significant biasses into eco-correlate analyses whenever group size is an important independent variable.
BACKGROUND Confocal endomicroscopy (CEM) is an endoscopic technology permitting in vivo cellular and subcellular imaging. CEM aids real-time clinical assessment and diagnosis of various gastrointestinal diseases in people. CEM allows in vivo characterization of small intestinal mucosal morphology in dogs. OBJECTIVE To determine the feasibility of CEM to… (More)