in our search for new anticancer medicinal plants, the antiproliferative activity of the methanol extract of daphne mucronata (thymelaeaceae) was evaluated using human myelogenous leukemia k562 cells. the cells responded to plant treatments in a dose dependent manner and the ic50 of the crude extract (equivalent to 1 g of plant leaves powder per ml) and the purified active component were found ...

A tutorial introduction to the statistical mechanics of phase transitions and coexistence is presented, starting out from equilibrium systems nonequilibrium steady-state situations in externally driven systems, such as unmixing sheared binary fluid mixtures, lattice gas model, onset Rayleigh-Bénard convection. Then, some models for separation active where particles possess internal motility, ar...

Motility-induced phase separation (MIPS), the phenomenon in which purely repulsive active particles undergo a liquid-gas separation, is among simplest and most widely studied examples of nonequilibrium transition. Here, we show that states MIPS coexistence are fact only metastable for three-dimensional Brownian over very broad range conditions, decaying at long times through an ordering transit...

A single-phase shunt active power filter is used mainly for the elimination of harmonics in single-phase AC networks. In this paper a single-phase shunt active power filter based on, an indirect control technique is designed and simulated. This control technique is achieved by phase shifting the input signal(voltage/current) by π/2.The overall action of the shunt active power filter to eliminat...

porous hollow glass microspheres have many uses, including encapsulation of active materials. in this paper a fast and facile method for fabricating porous hollow glass-microspheres was demonstrated by etching them using dilute hydrofluoric acid. then, a highly reactive amine was infiltrated into the etched glass microspheres. scanning electron microscopy was conducted for the hollow glass micr...

a new model based on a combination of the polymeric multigrain and multilayer models has been developed to predict the polymerization rate, particle growth, morphology, effective parameters on broadening of the molecular weight distribution, number and weight average of the molecular weight, isotacticity index and bulk density of polymer. mathematical correlations and the kinetics used in this ...

background & aim : systemic lupus erythematosus (sle) is an autoimmune disease that affects primarily women, commonly in their reproductive years. clinicians have to face the many problems of pregnancy in patients with sle including the influence of sle on fetal outcome and that of pregnancy on sle. this study was performed to study maternal and fetal outcomes in women with sle. material and me...

Design and Implementation of highly efficient Reflective type phase shifters (RTPS) at 60GHz has been proposed in this work. Low loss cost effective design which utilizes less chip area is proposed. At high frequencies, to improve the efficiency of the communication system highly directional high gain antennas have to be used. Phase shifters are one of the most important elements in phased arra...