We revisit classical sieves for computing primes and analyze their performance in the external-memory model. Most prior sieves are analyzed in the RAM model, where the focus is on minimizing both the total number of operations and the size of the working set. The hope is that if the working set fits in RAM, then the sieve will have good I/O performance, though such an outcome is by no means gua...

introduction: working memory is thought to serve as a part of memory structure where functions like temporary storage and manipulation of information take place. this study investigates the effectiveness of working memory training regimens with iranian university students, while considering the implications for medical students. methods: thirty university students studying at different universi...

Introduction: Ethanol can induce a wide spectrum of neurophysiological effects via interaction with multiple neurotransmitter systems and disruption of the balances between inhibitory and excitatory neurotransmitters. Prefrontal cortex is involved in cognitive process including working memory and is sensitive to ethanol. Present study investigates the effects of intraperitoneal (i.p.) admini...

Introduction: Working memory plays a critical role in cognitive processes which are central to our daily life. Neuroimaging studies have shown that one of the most important areas corresponding to the working memory is the dorsolateral prefrontal cortex (DLFPC). This study was aimed to assess whether bilateral modulation of the DLPFC using a noninvasive brain stimulation, namely transcranial di...

how to cite this article: khosravi fard e, keelor jl, akbarzadeh bagheban ar, keith rw. comparison of the ravlt and digit test with typically achieving and gifted students. iran j child neurol. spring 2016; 10(2):26-37. abstract objective in this study, different kinds of memory were evaluated using rey auditory verbal learning (ravlt) test and were compared between two groups of typical and gi...

working memory impairment is one of the most important cognitive deficits in patients with mild traumatic brain injury that affect mental health status even in the early stages of the disease. the purpose of this study was to evaluate the correlation between the working memory and mental health status in traumatic brain injury (tbi) patients. this cohort study was performed on 50 tbi patients a...

Introduction: Psychomotor performance task is used to assess the arousal and cognitive functions of the central nervous system. Alternatively, human visual working memory reflects the capability of the individual’s short-term memory. Psycho-mental stimuli are linked to the stimulation of Malondialdehyde (MDA) formations. Citicoline is a nootropic nucleotide agent with a favorable effect on the ...