Female Spalangia cameroni produced more offspring from younger house fly pupae, both when given a choice of host ages and when not given a choice. Host age did not affect offspring survivorship. Offspring were larger when they had developed on younger hosts and the effect was independent of offspring sex. Having previously parasitized old hosts versus young hosts did not reduce a female's produ...

Abundant, affordable and secure supplies of energy are vital for maintaining our present way of life, as is a stable climate. Energy, in all its useful forms, is essential for the sustainability of our society. It has been argued that it was essentially man's ability to exploit useful energy from fossil fuel resources that sparked-off and maintained the great societal transition that became kno...

The Variable Neighborhood Search (VNS) is a recent metaheuristic that combines series of random and improving local searches based on systematically changed neighborhoods. When a local minimum is reached, a shake procedure performs a random search. This determines a new starting point for running an improving search. The use of interchange moves provides a simple implementation of the VNS algor...

The expression of recombinant allergens is becoming new insights of an important diagnosis and the therapy of allergies as well as molecular approaches to immunological and structural studies of allergens. Ovomucoid is a major food allergens in the hen’s egg white which causes immediate food-hypersensitivity reactions mainly in children. A gene coding for the cDNA representing an entire ovomuco...

Euplokamis has coiled tentilla on its tentacles, which can be discharged, flicking out at high velocity, when triggered by contact with prey. The tentillum adheres to prey by means of numerous colloblasts. Discharge, which takes 40-60 ms, is accomplished by contraction of striated muscles, found only in this genus among the Ctenophora. Restoration of the coiled state is attributable to passive,...

This article presents a network-controlled approach of user terminal mobility within an m based Wireless LANAccess Network. bz a first part, this article makes a review of the mobility support, on the subject of emerging W~N technologies as HIPEICLaN/2 and IEEE 802.11, on the one hand, and, regarding m networks as currently studied within tETF, on the other hand. Both types of lP mobility proto...

These informal reminiscences, presented at the ICTP 2002 Conference on algebraic Ktheory, recount the trajectory in the author’s early research, from work on the Serre Conjecture (on projective modules over polynomial algebras), via ideas from algebraic geometry and topology, to the ideas and constructions that eventually contributed to the founding of algebraic K-theory. The solution of the Co...

An invariant based on ordered K-theory with coefficients in Z ⊕⊕n>1 Z/n and an infinite number of natural transformations has proved to be necessary and sufficient to classify a large class of nonsimple C∗-algebras. In this paper, we expose and explain the relations between the order structure and the ideals of the C∗-algebras in question. As an application, we give a new complete invariant for...

Ten imidazole derivatives were tested for mutagenicity in Salmonella typhimurium strains TA98 and TA100 both in the absence and presence of metabolic activation by the microsomal fraction S9 mix. In a general manner, derivatives tested exhibited a greater mutagenic activity in the TA100 strain comparing to the responses in TA 98. In the standard plate incorporation assay, 8 of these substances ...

Decompositions of the complete graph with n vertices Kn into edge disjoint cycles of length m whose union is Kn are commonly called w-cycle systems. Any m-cycle system gives rise to a groupoid defined on the vertex set of Kn via a well known construction. Here, it is shown that the groupoids arising from all m-cycle systems are precisely the finite members of a variety (of groupoids) for m = 3 ...