MAMMALS ATTRACTED BY SUGAR

Random Walk Attracted by Percolation Clusters

Starting with a percolation model in Z in the subcritical regime, we consider a random walk described as follows: the probability of transition from x to y is proportional to some function f of the size of the cluster of y. This function is supposed to be increasing, so that the random walk is attracted by bigger clusters. For f(t) = e we prove that there is a phase transition in β, i.e., the r...

Malaria Mosquitoes Attracted by Fatal Fungus

Insect-killing fungi such as Beauveria bassiana are being evaluated as possible active ingredients for use in novel biopesticides against mosquito vectors that transmit malaria. Fungal pathogens infect through contact and so applications of spores to surfaces such as walls, nets, or other resting sites provide possible routes to infect mosquitoes in and around domestic dwellings. However, some ...

Attracted or Repelled? Look Within

branch of the Ig superfamily, but they differ from DCC proteins in the number of extracellular Ig and fibronectin domains and share no similarity over their large cyto-The past several years have seen a revolution in our plasmic domains. Using the well-characterized Dro-understanding of how axons find their targets during sophila midline, Bashaw and Goodman (1999) recog-neural development. Thes...

The unexpected similarity of intestinal sugar absorption by SGLT1 and apical GLUT2 in an insect (Aphidius ervi, Hymenoptera) and mammals

Unexpected similarity of intestinal sugar absorption by SGLT1 and apical GLUT2 in an insect (Aphidius ervi, Hymenoptera) and mammals.

Sugars are critical substrates for insect metabolism, but little is known about the transporters and epithelial routes that ensure their constant supply from dietary resources. We have characterized glucose and fructose uptakes across the apical and basolateral membranes of the isolated larval midgut of the aphid parasitoid Aphidius ervi. The uptake of radiolabeled glucose at the basal side of ...