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131.
J. Dendy P. Dobie J. A. Saidi J. L. Smith B. Uronu 《Entomologia Experimentalis et Applicata》1989,50(3):241-244
Pitfall traps baited with a lure containing a new pheromone component were used to catch adult Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae) in the field in Tanzania. Traps baited with a mixture of Trunc-call (T1) and the new component Trunc-call (T2) caught ten times as many insects as traps baited with T1 alone. The data demonstrate for the first time that mixtures of T1 and T2 can be used as effective lures to trap P. truncatus in the field, and that P. truncatus is widespread outside of farm buildings in Africa.
Résumé Des pièges contre P. truncatus Horn, appâtés avec un leurre contenant une nouvelle phéromone ont été utilisés dans la nature en Tanzanie. Les pièges appâtés avec un mélange de Trunc-call 1 (T1) et du nouveau composé Trunc-call 2 (T2) capturent 10 fois plus d'insectes que ceux appâtés avec T1 seul. Ces résultats montrent pour la première fois que des mélanges de T1 et T2 peuvent être utilisés efficacement pour leurrer P. truncatus dans la nature, et que P. truncatus est abondant autour des fermes en Afrique.相似文献
132.
Major surgery can be safely performed in hemophiliacs when adequate factor activity is provided, i.e., 100 percent activity perioperatively and 50 percent activity thereafter. These patients require complete hemostatic evaluation in order to properly titrate perioperative needs. The extreme cost of surgery and hospitalization mandates that, when possible, patients needing multiple procedures have them performed at the same time. A case is presented in which a paraplegic hemophiliac with extensive pressure sores underwent quadruple flaps following these tenets. 相似文献
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134.
Since, aggregate stability is the main physical property regulating erodibility; its observations can act as a useful indicator for monitoring and managing soil degradation. In this context, this study carried out in the alluvial plain of Cheliff, a semi-arid area aimed to predict aggregate stability through Mean Weight Diameter (MWD), using pedotransfer functions (PTFs) with different stratifications (textural, salinity and organic-textural) and artificial neural networks (ANNs). Results showed that the best MWD predictions were those related to organic-textural PTFs, in this stratification the silty-clay moderately rich OM class showed the highest significant determination coefficient R2 (0.65) and the lowest mean square error (0.03), whereas, the textural and salinity PTFs were a very weak predictors with a very low R2. It was also found that the performances of ANNs in predicting MWD were better than those of PTFs, regarding ANNs input variables the best predictions were those obtained with a large number of input variables, furthermore, by using a large number of hidden neurons, the performances of Radial Basis Function (RBF) were better than those of Multilayer Perceptron (MLP). It was also noted that the best RBF results were always related to the Gaussian hidden activation, whereas, MLP was not related to a specific hidden activation. 相似文献