El realisme poètic de Marcel Carné

Abstract not availabl

Report of aerial sketchmapping survey of Sand Hills State Forest

The primary objective of this survey was the location of "going" black turpentine beetle infestations for the purposes of suppression and reduction of timber losses

Evaluation of black turpentine beetle infestations on Sand Hills State Forest in South Carolina

Aerial sketch map and ground surveys of Sand Hills State Forest located in northeastern South Carolina indicate black turpentine beetle activity to be approaching epidemic levels. Survey data analysis reveals that there are 12.2 spots and 63.5 infested trees per M acres of host type on the 92,000 acre forest. Timber losses estimated from the aerial and ground phases of the survey are 10,537 board feet of sawtimber and 2.2 cords of pulpwood per M acres of host type. Prompt removal of infested material through commercial sales is recommended throughout t he forest

Microfilaria-dependent thoracic pathology associated with eosinophilic and fibrotic polyps in filaria-infected rodents

Background: Pulmonary manifestations are regularly reported in both human and animal filariasis. In human filariasis, the main known lung manifestations are the tropical pulmonary eosinophilia syndrome. Its duration and severity are correlated with the presence of microfilariae. Litomosoides sigmodontis is a filarial parasite residing in the pleural cavity of rodents. This model is widely used to understand the immune mechanisms that are established during infection and for the screening of therapeutic molecules. Some pulmonary manifestations during the patent phase of infection with L. sigmodontis have been described in different rodent hosts more or less permissive to infection. Methods: Here, the permissive Mongolian gerbil (Meriones unguiculatus) was infected with L. sigmodontis. Prevalence and density of microfilariae and adult parasites were evaluated. Lungs were analyzed for pathological signatures using immunohistochemistry and 3D imaging techniques (two-photon and light sheet microscopy). Results: Microfilaremia in gerbils was correlated with parasite load, as amicrofilaremic individuals had fewer parasites in their pleural cavities. Fibrotic polypoid structures were observed on both pleurae of infected gerbils. Polyps were of variable size and developed from the visceral mesothelium over the entire pleura. The larger polyps were vascularized and strongly infiltrated by immune cells such as eosinophils, macrophages or lymphocytes. The formation of these structures was induced by the presence of adult filariae since small and rare polyps were observed before patency, but they were exacerbated by the presence of gravid females and microfilariae. Conclusions: Altogether, these data emphasize the role of host-specific factors in the pathogenesis of filarial infections