Sajjad Farashi

Sajjad Farashi
Hamadan University of Medical Sciences | UMSHA · Autism Spectrum Disorders Research Center

Doctor of Engineering

About

38
Publications
11,313
Reads
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445
Citations
Citations since 2017
35 Research Items
442 Citations
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
Introduction
Skills and Expertise

Publications

Publications (38)
Article
Background Uterine leiomyoma (UL) is the most common benign tumor of the reproductive period and become a major health problem. The present umbrella review assessed the environmental risk factors associated with UL based on meta-analyses studies. Materials and methods We searched three Major databases until February 2022. The meta-analyses that ha...
Article
Purpose The main purpose of this systematic review was to evaluate the association between the stroke (risk of stroke and the mortality due to stroke) and vitamin A, its organic compounds and its provitamins. Method Major databases including PubMed, Scopus, and Web of Science were searched. Studies with human samples were included for risk assessm...
Article
Full-text available
3D printing is an interesting and growing field in many areas. Despite advantages, several issues regarding the quality and strength of products have remained unresolved. Among these issues are the effects of printing process parameters on the mechanical properties of a printed object. In this study, the effects of the layer thickness and print ori...
Article
Full-text available
Parkinson's Disease (PD) is a neurodegenerative disorder that causes movement and behavioral problems. Pharmacological advancements for preventing disease progression have limited success for many PD patients; therefore, supportive care is necessary. The advancement of the digital world and the revolution of computerized applications pave the way f...
Article
Background: People with autism spectrum disorder (ASD) have difficulties recognizing emotions. Studies showed that virtual reality (VR) and computerized training programs might be used as potential tools for enhancing emotion recognition in such people. However, some inconsistencies were observed between the studies. Objective: In the current syst...
Article
Background. Levodopa-based drugs are widely used for mitigating the complications induced by Parkinson’s disease (PD). Despite the positive effects, several issues regarding the way that levodopa changes brain activities have remained unclear. Methods. A combined strategy using EEG data and graph theory was used for investigating how levodopa chang...
Article
Full-text available
Analysis of neuronal activities is essential in studying nervous system mechanisms. True interpretation of such mechanisms relies on detecting and sorting neuronal activities, which appear as action potentials or spikes in the recorded neural data. So far, several algorithms have been developed for spike sorting. In this paper, spike sorting was ad...
Article
Full-text available
Fused filament fabrication that is also known as fused deposition modeling (FDM) is a widely used technology for fabricating 3-dimensional models. The properties of FDM 3D models are influenced by printing parameters. In this meta-analysis, the effect of printing speed or extruder temperature on the tensile strength of printed samples was investiga...
Article
Full-text available
Purpose The effects of electromagnetic fields of mobile phones on headaches have attracted researchers during the last decades. However, contradictory results have been reported so far. Methods In this systematic review and meta-analysis, major databases including PubMed, Scopus and Web of Science were searched using suitable search terms and PRIS...
Article
Full-text available
In this systematic review, we analyzed and evaluated the findings of studies on prosodic features of vocal productions of people with autism spectrum disorder (ASD) in order to recognize the statistically significant, most confirmed and reliable prosodic differences distinguishing people with ASD from typically developing individuals. Using suitabl...
Article
Full-text available
It is well known that eye movements are highly affected by Parkinson’s disease. The majority of studies related to effects of Parkinson’s disease on eye movements have been performed for rapid eye movements during sleep. However, in the current study, eye movements during resting-state (eyes-open and eyes-closed conditions) were studied to evaluate...
Article
In this study, using vertical ground reaction force (VGRF) data and focusing on the stance phase of the gait cycle, the effect of Parkinson’s disease (PD) on gait was investigated. The used dataset consisted of 93 PD and 72 healthy individuals. Multiple comparisons correction ANOVA test and student t-test were used for statistical analyses. Results...
Preprint
Full-text available
Objective Levodopa-based drugs are widely used for mitigating the complications induced by PD. Despite the positive effects, several issues regarding the way that levodopa changes brain activities have remained unclear. Methods A combined strategy using EEG data and graph theory was used for investigating how levodopa changed connectome and proces...
Article
Full-text available
Background: Prior studies suggest that exercise may prevent movement disorders in Parkinson's disease (PD) patients. In this meta-analysis, the pooled effect of exercise on PD-induced tremor was investigated. Method: Relevant published studies (n = 7) were retrieved by searching major databases, including Scopus, Web of Science and PubMed from 1985...
Article
Ranking of universities regarding their web-based activities plays a pivotal role in promoting scientific advancement since it motivates the open access accessibility to scientific results. In this study, a new ranking system based on the website quality factors and traffic evaluation was proposed. Since top-ranked universities are usually consider...
Article
Temperature is a fundamental factor that affects many functions and structural aspects of physiological systems. Despite its importance, few studies have been performed so far for investigating the compartments and mechanisms engaged in the response of cellular systems to temperature perturbation. In this review, focusing on stem cells, we tried t...
Article
Full-text available
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Article
Emotion is a fundamental factor that influences human cognition, motivation, decision making and social interactions. This psychological state arises spontaneously and goes with physiological changes that can be recognized by computational methods. In this study, changes in minimum spanning tree (MST) structure of brain functional connectome were u...
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Full-text available
A double burden of malnutrition occurs when individuals, household members or communities experience both undernutrition and overweight. Here, we show geospatial estimates of overweight and wasting prevalence among children under 5 years of age in 105 low- and middle-income countries (LMICs) from 2000 to 2017 and aggregate these to policy-relevant...
Article
Full-text available
Introduction: Attention-Deficit/Hyperactivity Disorder (ADHD) is a well-known neurodevelopmental disorder. Diagnosis and treatment of ADHD can often lead to a developmental trajectory toward positive results. The present study aimed at implementing the decision tree method to recognize children with and without ADHD, as well as ADHD subtypes. Meth...
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Full-text available
Purpose-Although the effect of electromagnetic fields on biological systems has attracted attraction in recent years, there has not been any conclusive result concerning the effects of interaction and the underlying mechanisms involved. Besides the complexity of biological systems, the parameters of the applied electromagnetic field have not been e...
Article
In many cellular networks, the structure of the network follows a scale-free organization, where a limited number of cells are strongly coupled to other cells. These cells are called hub cells and their critical roles are well accepted. Despite their importance, there have been only a few studies investigating the characteristic features of these c...
Article
The corrosion inhibition mechanism of mild steel in acidic solution and in the presence of two cationic gemini surfactants have been studied. These are two surfactants having 12-carbon hydrophobic tails: one with a tetramethylene spacer and the other one with the same spacer containing two hydroxyl groups. EIS and polarization and electrochemical n...
Article
Interaction between biological systems and environmental electric or magnetic fields has gained attention during the past few decades. Although there are a lot of studies that have been conducted for investigating such interaction, the reported results are considerably inconsistent. Besides the complexity of biological systems, the important reason...
Article
This work intends to study the effect of a polydimethylsiloxane additive on the protection performance of a hybrid silane coating on mild steel. Electrochemical impedance spectroscopy, polarization and electrochemical noise measurements and salt spray showed an increase in corrosion resistance of the silane coating in the presence of the additive....
Article
Correct interpretation of neural mechanisms depends on the accurate detection of neuronal activities, which become visible as spikes in the electrical activity of neurons. In the present work, a novel entropy based method is proposed for spike detection which employs the fact that transient spike events change the entropy level of the neural time s...
Article
Mg-Al-PO43− layered double hydroxide (LDH) nanoparticle was synthesized through an anion exchange method and characterized by XRD, IR spectroscopy and SEM. The phosphate and Mg2+ release ability of Mg-Al-PO43− LDH in the 3.5 wt. % NaCl solution was measured by inductively coupled plasma-optical emission spectrometer (ICP-OES). Results showed the re...
Article
Zn-Al-NO3ˉ layered double hydroxide (LDH) nanocontainers loaded with PO43- anion with capability of releasing inhibitive species and absorbing corrosive chloride ions were successfully synthesized by an anion exchange route. The prepared nitrate based LDHs were well characterized by scanning electron microscopy, X-ray diffraction analysis, Fourier...
Article
Electrocardiography is considered as a useful diagnostic tool for evaluating the condition of heart's health. QRS complex, which is produced by depolarization of the heart ventricles, is the main graphical deflection seen on a typical electrocardiogram tracing. Detection of the QRS complexes is the first step toward analyzing the electrocardiogram...
Article
Full-text available
Spike sorting involves clustering spikes according to the similarity of their shapes. Usually the sorting procedure is carried out by extracting appropriate features of neuronal spikes. In this study a new spike sorting procedure based on genetic algorithm is developed which contains two distinct phases. In the first phase a B-spline curve is fitte...

Questions

Questions (2)
Question
Dear all
I am engaged with a project, which is related to the stimulation of pancreatic beta cells with different electrical wave shapes. My computational analysis based on mathematical model of this cell shows that if induced electrical field in the membrane area arrives to several hundreds of kv/m, the electrical stimulation my change cell functions. Now I have faced with some ambiguities if the electric field in membrane area is equal to the electric field produced by applying voltages to the electrodes both sides of the cell culture medium (separated by 10 cm distance) or it is different?
any help will be appreciated.
Regards,
Question
I am working on a project related to pancreatic beta cells. I would like to know what is the specific impact of diabetes on electrical patterns of beta cell activities. I know the diabetes reduces the amplitude of bursting and bursting mass but what about the burst duration, inter-BRST interval and the ability of disease on changing bursting status to spiking behavior?

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