A series of CoIII carboxylate based upon N,N,O,O-tetradentate Schiff base ligand framework have been prepared. X-ray diffraction analysis confirms that these Schiff base CoIII carboxylate are all monomeric species with a six-coordinated central Co in their solid structures. The activities and polycarbonate selectivity of these complexes toward the copolymerization of epoxide (cyclohexene oxide ...

Organic extracts of 20 species of French seaweed have been screened against Trypanosoma brucei rhodesiense trypomastigotes, the parasite responsible for sleeping sickness. These extracts have previously shown potent antiprotozoal activities in vitro against Plasmodium falciparum and Leishmania donovani. The selectivity of the extracts was also evaluated by testing cytotoxicity on a mammalian L6...

The use of nerve cuff electrodes as p a r t of a closed loop functional electrical stimulation (FES) system has been demonstrated as a reliable alternative to artificial sensors (e.g., strain gauge). T o circumvent the need for multiple electrodes to record neural activity f rom different fascicles within a nerve, the flat interface nerve electrode (FINE) is presented as a potential approach to...

PURPOSE To compare gamma knife treatment plans that use skull scaling instrument measurements for skull definition vs. CT based skull definition. METHODS Eight previously treated patients who had head CT scans were randomly selected. Their CT images were imported into Leksell GammaPlan. For each patient, three dose plans were developed: 1. the reference plan. It was planned based on the stand...

In response to the critique by Schmidt and Whelan (1999), we find that the relationship between nest success and tree selectivity is dependent upon inclusion or exclusion of particular tree species, whether or not years are pooled, and the selectivity index used. We question their use of point estimates of nest success with extremely high variances, defend our index, question the application of...

A series of 9 quinolines and 18 styrylquinolines was evaluated for the drugs' in vitro antileishmanial activities and cytotoxicities. The 7-aroylstyrylquinoline scaffold appeared to be the most promising one, with the most interesting compound, no. 35, exhibiting a 50% inhibitory concentration (IC(50)) of 1.2 μM and a selectivity index value of 121.5. Compound 35 was 10-fold and 8-fold more act...

Selectivity index is a way of assessing the discrimination herbicide to given crop by observing its effects on and weeds. The aim was obtain selectivity indaziflam sugarcane cultivar IACSP95-5000 as function five weed species in two soils textures. experiment carried out greenhouse at Piracicaba, São Paulo, Brazil. treatments consisted doses (0; 12.5; 25; 50; 100; 200; 400; 800 1,600 g active i...