In 1993, surface soil samples (0-15 cm) were collected from different regions of Algeria, in order to evaluate their radioactivity. The samples were a...

Natural (238U and 232Th series, 40K) and artificial (137Cs) radioactivity levels in the sediments of Algiers bay were measured using gamma-ray spectro...

Two new guaianolides have been isolated from the aerial parts of Centaurea musimomum, 3-oxo-4[alpha]-acetoxy-15-hydroxy-1[alpha]H, 5[alpha]H, 6[beta]H...

We have studied the magnetization hysteresis loop of twined and detwined YBaCuO single crystals. We investigated the temperature dependence, angular a...

We investigated the influence of the field sweep rate dH/dt (3Oe/s2Cu3O7-d at different temperatures and for a fixed fields parallel to the c-axis. Th...