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Transcranial direct current stimulation for auditory verbal hallucinations:a systematic review of clinical trials

Neural Regeneration Research 2021年第4期16卷 666-671页

作者： samaneh rashidi Myles Jones Eric Murillo-Rodriguez Sergio Machado Youguo Hao Ali Yadollahpour Department of Medical Physics School of MedicineAhvaz Jundishapur University of Medical SciencesAhvazIran Department of Psychology University of SheffieldSheffieldUK Laboratorio de Neurociencias Moleculares e Integrativas Escuela de Medicina División Ciencias de la SaludUniversidad Anáhuac MayabMéridaYucatánMéxico Laboratory of Physical Activity Neuroscience Physical Activity Sciences Postgraduate ProgramSalgado de Oliveira UniversityNiteróiBrazil Department of Rehabilitation Shanghai Putuo People’s HospitalShanghaiChina

Transcranial direct current stimulation(tDCS)has been reportedly beneficial for different neurodegenerative *** has been reported as a potential adjunctive or alternative treatment for auditory verbal hallucination(AVH).This study aims to review the effects of tDCS on AVH in patients with schizophrenia through combining the evidence from randomized clinical trials(RCTs).The databases of PsycINFO(2000–2019),PubMed(2000–2019),EMBASE(2000–2019),CINAHL(2000–2019),Web of Science(2000–2019),and Scopus(2000–2019)were systematically *** clinical trials with RCT design were selected for final analysis.A total of nine RCTs were eligible and included in the *** RCTs were included in the final *** them,six RCTs reported a significant reduction of AVH after repeated sessions of tDCS,whereas three RCTs did not show any advantage of active tDCS over sham *** current studies showed an overall decrease of approximately 28%of AVH after active tDCS and 10%after sham *** tDCS protocols targeting the sensorimotor frontal-parietal network showed greater treatment effects compared with the protocols targeting other *** this regard,cathodal tDCS over the left temporoparietal area showed inhibitory effects on *** most effective tDCS protocol on AVHs was twice-daily sessions(2 mA,20-minute duration)over 5 consecutive days(10 sessions)with the anode over the left dorsolateral prefrontal cortex and the cathode over the left temporal *** patient-specific and diseasespecific factors such as young age,nonsmoking status,and higher frequencies of AVHs seemed to be the predictors of treatment *** together,the results of tDCS as an alternative treatment option for AVH show controversy among current literatures,since not all studies were ***,the studies targeting the same site of the brain showed that the tDCS could be a promising treatment option to reduce *** RCTs,with larger sample sizes,should be con

关键词： auditory verbal hallucinations dorsolateral prefrontal cortex effective protocol randomized clinical trial,schizophrenia temporoparietal area transcranial direct current stimulation treatment efficacy

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Inverted organic solar cells with solvothermal synthesized vanadium-doped TiO2 thin films as efficient electron transport layer

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Chinese Physics B 2017年第9期26卷 406-410页

作者： Mehdi Ahmadi Sajjad rashidi Dafeh samaneh Ghazanfarpour Mohammad Khanzadeh Department of Physics Faculty of ScienceVali-e-Asr University of RafsanjanRafsanjanIran

We investigated the effects of using different thicknesses of pure and vanadium-doped thin films of TiO2 as the electron transport layer in the inverted configuration of organic photovoltaic cells based on poly（3-hexylthiophene） P3HT：[6-6] phenyl-（6） butyric acid methyl ester（PCBM）. 1% vanadium-doped TiO2nanoparticles were synthesized via the solvothermal method. Crystalline structure, morphology, and optical properties of pure and vanadium-doped TiO2 thin films were studied by different techniques such as x-ray diffraction, scanning electron microscopy, transmittance electron microscopy, and UV–visible transmission spectrum. The doctor blade method which is compatible with roll-2-roll printing was used for deposition of pure and vanadium-doped TiO2 thin films with thicknesses of 30 nm and 60 nm. The final results revealed that the best thickness of TiO2 thin films for our fabricated cells was 30 nm. The cell with vanadium-doped TiO2 thin film showed slightly higher power conversion efficiency and great Jsc of 10.7 mA/cm^2 compared with its pure counterpart. In the cells using 60 nm pure and vanadium-doped TiO2 layers, the cell using the doped layer showed much higher efficiency. It is remarkable that the external quantum efficiency of vanadium-doped TiO2 thin film was better in all wavelengths.

关键词： inverted polymer solar cells electron transport layer vanadium-doped TiO2 thin films solvothermal

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