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This study provides contributions to the knowledge on diversity and natural history of hyperparasitoids (Hymenoptera) associated with host–parasitoid interactions between spiders (Araneae) and polysphinctine Darwin wasps (Pimplinae) in the Atlantic Forest, Brazil, South America. All hyperparasitoids emerged in the laboratory from polysphinctine cocoons that were collected in cocoon webs in the field...
We describe a data structure, the tiered vector, which is an implementation of the Vector ADT that provides O(1/∈)worst case time performance for rank-based retrieval and O(n∈) amortized time performance for rank-based insertion and deletion, for any fixed ∈ > 0. We also provide results from experiments involving the use of the tiered vector for ∈ = 1/2 in JDSL, the Data Structures Library...
BACKGROUND AND AIMS: Amphetamine, besides its well known psychological and behavioral effects, was found to influence the immune functions. However, the mechanism of amphetamine-induced changes in the immune system remains unknown. In search of a possible mechanism of immunomodulating effect of amphetamine, in the present study we tested the involvement of sympathetic nervous system in that effect...
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