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Residues of para-dichlorobenzene in honey and beeswax
SUMMARY Para-dichlorobenzene (PDCB) is an insecticide used in beekeeping for wax moth control. Analysis of PDCB residues were carried out on Swiss retail market honey samples by the cantonal food… Expand
Experimental studies on the pathogenesis of contact eczema in the guinea-pig.
Studies on the dynamics of transmission of onchocerciasis in a Sudan-savanna area of North Cameroon I. Prevailing Simulium vectors, their biting rates and age-composition at different distances from…
Along the main water courses in the sparsely populated areas of the Sous-Préfecture of Tcholliré, the vectors of onchocerciasis were mainly Simulium damnosum s. str. and S. sirbanum, together with a… Expand
Functional anatomy of the hypopharynx and the salivary pump in the feeding apparatus of the assassin bug Rhodnius prolixus (Reduviidae, Heteroptera)
Focussing on the blood-feeding reduviid Rhodnius prolixus, we investigated the structure and function of the hypopharynx in (1) conducting the saliva towards the mouthparts and (2) bringing together… Expand
Elimination of microfilariae (Litomosoides carinii Filarioidea) in the patent and in the immunized cotton-rat.
The Dorsal Compound Eye of Simuliid Flies:
Abstract Compound Eye, Light-Quantum Noise The highly specialized dorsal compound eye of male Simuliids is especially adapted to detect during flight the females which are very small animals (1×3… Expand
The transmission of Onchocerca tarsicola (Filarioidea: Onchocercidae) by Odagmia ornata and Prosimulium nigripes (Diptera: Simuliidae).
Onchocerca tarsicola is a subcutaneous filariid of the red deer living on the tendons of the radial-carpal and tibial-tarsal joints. Its microfilariae concentrate mainly in the external ears. The… Expand
The dorsal compound eye of simuliid flies: an eye specialized for the detection of small, rapidly moving objects.
The highly specialized dorsal compound eye of male Simuliids is especially adapted to detect during flight the females which are very small animals (1X3 mm). At dawn, the eye functions close to the… Expand
Fecundity of Litomosoides carinii (Nematoda, Filarioidea) in vivo and in vitro.
Several parameters concerning the reproduction of Litomosoides carinii were assessed using quantitatively infected cotton rats (Sigmodon hispidus). The course of embryogenesis from the fertilization… Expand
Recovery of adult stages and microfilaraemia after low dose inoculation of third stage larvae of Litomosoides carinii in Sigmodon hispidus.
Because of the negative binomial distribution of filarial third stage larvae (L3) in their vectors, under natural conditions only a few are usually transferred per bite. After an inoculation of 5 L3… Expand