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Modulated enzyme expression in gastrointestinal nematodesYoung, Catriona Jean January 1996 (has links)
No description available.
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Studies on the reproductive system of monogeneansTappenden, Tracy January 1989 (has links)
No description available.
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Molecular genetics of glutathione S-transferase production in RhizobiumTawfiq-Alkafaf, Najlaa January 1996 (has links)
No description available.
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Mast cell responses to intestinal nematodes in miceDehlawi, M. S. January 1986 (has links)
No description available.
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A biochemical analysis of the antigens of Trichinella spiralisJarvis, Lisa Marie January 1992 (has links)
No description available.
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Immunogenetics of Heligmosomoides polygyrus (Nematospiroides dubius) in miceWahid, Faisal Numman January 1991 (has links)
No description available.
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Immunity to Strongyloides ratti in the ratHaddow, W. J. January 1985 (has links)
No description available.
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Effect of site of infection on host plant growth and metabolismMuthaukrishnan, L. January 1987 (has links)
No description available.
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A search for mechanism restricting activation of the host complement system in Echinococcus granulosusDiaz Yacobazzo, Alvaro Juan January 1997 (has links)
No description available.
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Water velocity as a control of aquatic snails in concrete canal systems for irrigationJones, Howard January 1993 (has links)
Aquatic snails are the intermediate hosts of the disease schistosomiasis. Irrigation schemes have often provided a favourable habitat for these snails, but rapidly flowing water will carry them away. The research established 23 stations in irrigation canals and monitored snail numbers and water velocity at these points. A maximum tolerable velocity for the snail Bulinus truncatus of 0.23 m/s was established, corresponding to 0.13 m/sat snail height. Aquatic weed did not invalidate this velocity, but the use of a single control velocity was found to be over-simplistic. The long-term mean velocity was found to be the best measure for snail control when velocity varied with time. Using specially designed filter-traps, snails being carried along by the flow were intercepted and counted. Attempts to relate these counts to velocity revealed daily and seasonal cycles of numbers of snails detaching. Snails in 130 syphon boxes were monitored and the number of snails compared with water velocity. The maximum velocity tolerated here was lower than in the canals. Turbulence theory was examined to explain the difference. The fieldwork was largely carried out in the Tessaout Amont Irrigation Scheme in Morocco. Recommendations are made for the design, operation and maintenance of irrigation schemes, if velocity is to be considered as a snail control.
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