Functional magnetic resonance imaging (fMRI) neurofeedback is a type of biofeedback in which real-time online fMRI signals are used to self-regulate brain function. Since its advent in 2003 significant progress has been made in fMRI neurofeedback techniques. Specifically, the use of implicit protocols, external rewards, multivariate analysis, and connectivity analysis has allowed neuroscientist...

Introduction: This study aimed to evaluate the effectiveness of neurofeedback on attention deficit hyperactivity disorder. Methods: This is a quasi-experimental study without a control group. The study population included all children aged 5 to 12 years old affected with attention deficit hyperactivity disorders in Tehran, Iran who were referred to psychiatric clinics and given ...

Seawater reverse osmosis desalination (SWRO) requires less energy compared with the distillation method and thus is an important technology except Middle Eastern countries whereenergy costs are higher. Recently, even Middle Eastern countries where the distillation method is still a major technology, have begun adopting the RO method in new desalinationplants in line with government ...

A hybrid system is described that combines the features of two solar technologies – photo-voltaic conversion to electricity (PV) and thermal conversion to heat and finally to electric energy for battery usage. Under the condition of the same output power of photovoltaic system, using low cost superiority of the high concentrator material in place of the expensive solar cell to reduce the compre...

utilization of fossil fuel for supplying of requires energy of desalination systems is common. on the other hand, solar energy is one of the high-grade energies in the world that can be found specifically in hot weather places. therefore, utilization of solar energy for operation of desalination systems will reduce greenhouse gases and is a good alternative way. common exergy analysis method (s...

Neurofeedback is a mode of treatment that is potentially useful for improving self-regulation skills in persons with autism spectrum disorder. We proposed that operant conditioning of EEG in neurofeedback mode can be accompanied by changes in the relative power of EEG bands. However, the details on the change of the relative power of EEG bands during neurofeedback training course in autism are ...

A numerical method for solving Schrödinger’s equation based upon a Baker-CampbellHausdorff (BCH) expansion of the time evolution operator is presented herein. The technique manifestly preserves wavefunction norm, and it can be applied to problems in any number of spatial dimensions. We also identify a particular dimensionless ratio of potential to kinetic energies as a key coupling constant. Th...

For parents with children with Attention Deficit / Hyperactivity Disorder (ADD/ADHD), neurofeedback represents an exciting new alternative to treatment with medication. Powerful psycho-stimulant drugs such as Ritalin have side-effects and do not work on changing the underlying causes of the condition. Neurofeedback therapy focuses on changing the underlying symptoms by re-training the brain. Ne...

The purpose of this study is to investigate the relationship between lens density in age-related cataract and best-corrected visual acuity (BCVA) and the impact of cataract grade assessed via 3D lens densitometry by Pentacam Nucleus Grading System (PNS) on Phacodynamics (phaco-time and phaco-energy). To achieve the aim 55 patients with age-related cataract were evaluated. Lens density was asses...