Natural disasters bring huge loss of life and property to human beings. Unmanned aerial vehicles (UAVs) own the advantages high mobility, flexibility, rapid deployment, are important equipment during post-disaster rescue. However, UAVs usually have restricted battery computing power. They not fit for performing compute-intensive tasks Since there widespread parking resources in a city, multiple...

BACKGROUND Flashbacks (intrusive memories of a traumatic event) are the hallmark feature of Post Traumatic Stress Disorder, however preventative interventions are lacking. Tetris may offer a 'cognitive vaccine' [1] against flashback development after trauma exposure. We previously reported that playing the computer game Tetris soon after viewing traumatic material reduced flashbacks compared to...

There has been accumulating evidence that cognitive control can be adaptively regulated by monitoring for processing conflict as an index of online control demands. However, it is not yet known whether top-down control mechanisms respond to processing conflict in a manner specific to the operative task context or confer a more generalized benefit. While previous studies have examined the taskse...

Steroid modulation of cognitive function has focused on estrogen (E(2)), but progestins naturally co-vary with E(2) and may also influence cognitive performance. Spatial performance in the object placement task over endogenous hormonal states in which E(2) and progestins vary, and when E(2) and/or progestins were administered, was examined. Experiment 1: Rats in proestrus or estrus had signific...

this study investigated the effect of sequencing tasks from simple to complex along +/- reasoning demands on fluency in writing task performance of english as foreign language (efl) learners. the participants of this study included 90 intermediate efl learners from three intact class divisions at the islamic azad uni- versity, shahr-e-qods branch. they were distributed in three groups: experime...