Finiteness properties of cubulated groups

We give a generalized and self-contained account of Haglund-Paulin's wallspaces and Sageev's construction of the CAT(0) cube complex dual to a wallspace. We examine criteria on a wallspace leading to finiteness properties of its dual cube complex. Our discussion is aimed at readers wishing to apply these methods to produce actions of groups on cube complexes and understand their nature. We develop the wallspace ideas in a level of generality that facilitates their application. Our main result describes the structure of dual cube complexes arising from relatively hyperbolic groups. Let H_1,...,H_s be relatively quasiconvex codimension-1 subgroups of a group G that is hyperbolic relative to P_1,...,P_r. We prove that G acts relatively cocompactly on the associated dual CAT(0) cube complex C. This generalizes Sageev's result that C is cocompact when G is hyperbolic. When P_1,...,P_r are abelian, we show that the dual CAT(0) cube complex C has a G-cocompact CAT(0) truncation.Comment: 58 pages, 12 figures. Version 3: Revisions and slightly improved results in Sections 7 and 8. Several theorem numbers have changed from the previous versio

Codeine accumulation and elimination in larvae, pupae, and imago of the blowfly Lucilia sericata and effects on its development

The aim of this study was to evaluate the reliability of insect larvae as samples for toxicological investigations. For this purpose, larvae of Lucilia sericata were reared on samples of minced pig liver treated with different concentrations of codeine: therapeutic, toxic, and potentially lethal doses. Codeine was detected in all tested larvae, confirming the reliability of these specimens for qualitative toxicology analysis. Furthermore, concentrations measured in larvae were correlated with levels in liver tissue. These observations bring new elements regarding the potential use of opiates concentrations in larvae for estimation of drug levels in human tissues. Morphine and norcodeine, two codeine metabolites, have been also detected at different concentrations depending on the concentration of codeine in pig liver and depending on the substance itself. The effects of codeine on the development of L. sericata were also investigated. Results showed that a 29-h interval bias on the evaluation of the larval stage duration calculated from the larvae weight has to be considered if codeine was present in the larvae substrate. Similarly, a 21-h interval bias on the total duration of development, from egg to imago, has to be considered if codeine was present in the larvae substrat

Histoire de l'étude des Insectes Sociaux en Suisse à travers l'œuvre d'Auguste Forel

Sartori Michel, Cherix Daniel. Histoire de l'étude des Insectes Sociaux en Suisse à travers l'œuvre d'Auguste Forel. In: Bulletin de la Société entomologique de France, volume 88 (1-2), Janvier-février 1983. Livre du Cent Cinquantenaire. Premier congrès international des entomologistes d'expression française. Paris, 6-9 juillet 1982. Comptes rendus des travaux. I. pp. 66-74

Histoire de l'étude des Insectes Sociaux en Suisse à travers l'œuvre d'Auguste Forel

Sartori Michel, Cherix Daniel. Histoire de l'étude des Insectes Sociaux en Suisse à travers l'œuvre d'Auguste Forel. In: Bulletin de la Société entomologique de France, volume 88 (1-2), Janvier-février 1983. Livre du Cent Cinquantenaire. Premier congrès international des entomologistes d'expression française. Paris, 6-9 juillet 1982. Comptes rendus des travaux. I. pp. 66-74