abstract introduction: low self–esteem has a continuous relation with chronic psychiatric disorder. occupational therapy increases self- esteem by performing purposive activities and profoundly believes in the relation of occupation and health .this research, examines the effect of day center of occupation therapy services on patients´ self–esteem and the length of duration of hospitalization i...

The high search speed and efficiency, and simple algorithm of particle swarm optimization algorithm make it suitable for actual-value processing. Starting from the angle of weight, this paper studies several improved particle swarm optimization algorithms and divides the improvement into three types as linear decreasing weight strategy, self-adaptive weight strategy and random weight strategy. ...

We propose lattice soleakons: self-trapped waves that self-consistently populate slowly-attenuating leaky modes of their self-induced defects in periodic potentials. Two types, discrete and Bragg, lattice soleakons are predicted. Discrete soleakons that are supported by combination of self-focusing and self-defocusing nonlinearities propagate robustly for long propagation distances. They eventu...