Methods Haemozoin was extracted from blood samples of all the malaria positive patients studied by centrifugation, and the concentration was analyzed spectrophotometrically at 400nm wavelength. Comparative anti-malaria activity of some conventional antimalarials, including Maldox, Halfan, Artecxin, Amatem, Mefloquine (quinolines) and Malmed, as well as the leaf and stem back extracts of some lo...

The bark extract of the Malayan Alstonia angustifoliaWall provided the spirocyclic alkaloids macrodasines AeG. The structures of the new compounds were established by analysis of the spectroscopic data and in the case of macrodasines A and B confirmed by X-ray diffraction analysis. Macrodasines A, B, C, and G incorporate fused spirocyclic tetrahydrofuranetetrahydrofuran rings, while macrodasine...

Chyluria denotes the urinary excretion of chyle, which is a lymphatic fluid rich in chylomicrons. Chyle flows from the intestinal lacteals to the left subclavian vein through the thoracic duct. When an abnormal connection between these structures and the urinary tract develops, chyluria appears. The syndrome is often associated with a nephrotic-range proteinuria, and this could be a wrong indic...

To the Editor: Tecoult and Nathan's retrospective analysis of ECT morbidity in 75 patients during 612 ECTs (Eur. J. Anesth. 18:511– 518, 2001) has serious clinical and methodological flaws, as follows. 1. No atropinic premedication was given, and succinylcholine was administered in only 5/75 (6.7%) patients. The authors' claim that their procedure met the ''French legal standards and the recomm...

We use a non-perturbative renormalization-group technique to study interacting bosons at zero temperature. Our approach reveals the instability of the Bogoliubov fixed point when d ≤ 3 and yields the exact infrared behavior in all dimensions d > 1 within a rather simple theoretical framework. It also enables to compute the low-energy properties in terms of the parameters of a microscopic model....