Electrocatalytic glucose oxidation reaction(GOR)has attracted much attention owing to its crucial role in biofuel cell fabrication.Herein,we load MoO_(3)nanoparticles on carbon nanotubes(CNTs)and use a discharge proce...Electrocatalytic glucose oxidation reaction(GOR)has attracted much attention owing to its crucial role in biofuel cell fabrication.Herein,we load MoO_(3)nanoparticles on carbon nanotubes(CNTs)and use a discharge process to prepare a noblemetal-free MC-60 catalyst containing MoO_(3),Mo_(2)C,and a Mo_(2)C–MoO_(3)interface.In the GOR,MC-60 shows activity as high as 745μA/(mmol/L cm^(2)),considerably higher than those of the Pt/CNT(270μA/(mmol/L cm^(2)))and Au/CNT catalysts(110μA/(mmol/L cm^(2))).In the GOR,the response minimum on MC-60 is as low as 8μmol/L,with a steady-state response time of only 3 s.Moreover,MC-60 has superior stability and anti-interference ability to impurities in the GOR.The better performance of MC-60 in the GOR is attributed to the abundant Mo sites bonding to C and O atoms at the MoO_(3)–Mo_(2)C interface.These Mo sites create active sites for promoting glucose adsorption and oxidation,enhancing MC-60 performance in the GOR.Thus,these results help to fabricate more effi cient noble-metal-free catalysts for the fabrication of glucose-based biofuel cells.展开更多
Recent studies have highlighted the increase in treatment resistant depression. Of particular concern is the rising trend of depression and suicide rates among Young Adults. Ketamine was approved for treatment resista...Recent studies have highlighted the increase in treatment resistant depression. Of particular concern is the rising trend of depression and suicide rates among Young Adults. Ketamine was approved for treatment resistant depression in 2019 by the US Food and Drug Administration. It received an additional indication for treatment of suicidality. While intranasal Ketamine is approved for depression, recent data about intravenous infusion of Ketamine in controlled inpatient settings has been promising. ECT has a long-standing trend for being used for resistant depression and recent comparison trials have revealed positive results when head-to-head comparisons are made with Ketamine. Future studies need to focus on patient selection and wherein treatment algorithm should Ketamine be selected as treatment modality.展开更多
Objective:To investigate the effects of propofol and ketamine on seizure duration,hemodynamics,and recovery of electroconvulsive therapy(ECT).Methods:This prospective randomized trial included patients who had undergo...Objective:To investigate the effects of propofol and ketamine on seizure duration,hemodynamics,and recovery of electroconvulsive therapy(ECT).Methods:This prospective randomized trial included patients who had undergone ECT under anesthesia.Patients received injection of propofol 1.5 mg/kg i.v.(the propofol group)or ketamine 0.8-1.2 mg/kg i.v.(the ketamine group)during ECT.Seizure duration,hemodynamics,and recovery were recorded and compared between the two groups.Results:This trial included 44 patinets with 22 patients receiving propofol and 22 patients receiving ketamine.The total dose of propofol and ketamine was(105.68±25.27)mg and(81.36±24.55)mg,respectively.The motor seizure and electroencephalogram seizure duration were prolonged in the ketamine group(P<0.001).The hemodynamics at the admission of the two groups were comparable(P>0.05);however,the mean systolic blood pressure during the procedure was significantly higher in the ketamine group(P=0.04).Besides,spontaneous eye-opening in the ketamine group took longer than that of the propofol group(P=0.001).Conclusion:Both propofol and ketamine are safe as anesthetic agents for modified ECT,and ketamine provides a longer seizure duration without hemodynamic instability or any significant complication.展开更多
Considering the influence of the streaming potential and electroviscous effects, the analytical solutions for electromagnetohydrodynamic (EMHD) flows in parallel plate microchannels are obtained. The electrolyte solut...Considering the influence of the streaming potential and electroviscous effects, the analytical solutions for electromagnetohydrodynamic (EMHD) flows in parallel plate microchannels are obtained. The electrolyte solutions in the microchannels are taken as generalized Maxwell fluids, and slip boundary conditions are adopted. To accurately analyze the EMHD flow characteristics, the variation trends of the electroviscous effects with the corresponding parameters must be understood. The results show that the electroviscous effects increase with the increase in the relaxation time De, the slip coefficient , and the wall zeta potential 0. However, the increase in the inverse of the electrical double-layer (EDL) thickness K, the electrical oscillating Reynolds number Re, and the ionic P'eclet number Pe can decrease the electroviscous effects. We also demonstrate that the electroviscous effect on the EMHD flows of generalized Maxwell fluids is larger than that of Newtonian fluids. This work will be useful in designing EMHD flows in parallel plate microchannels.展开更多
It is a retrospective qualitative study of all patients that had received ECT treatment in Khartoum National Psychiatric Hospitals in the period between January 2010 and December 2010 with special reference to indicat...It is a retrospective qualitative study of all patients that had received ECT treatment in Khartoum National Psychiatric Hospitals in the period between January 2010 and December 2010 with special reference to indications, side effects, and outcome using the same outcome criteria used by the royal college of Psychiatrists (UK) for modified audit format. 85% from 269 of overall Sudanese patients who had received ECT showed remarkable clinical response, with no major adverse side effects. Interestingly, the response rate was over 90% for patients with mania spectrum diagnosis. 85% of our patients were under the age of 40. Two thirds of the patients, who received ECT, were male. The main indication for ECT (45%) was mania, while depression and mixed affective states constituted less than 25% of the sample. Conclusion: In comparison to the West, ECT plays a major role in the treatment of mania and manic spectrum disorders in Africa.展开更多
基金supported by the National Natural Science Foundation of China(Nos.82170426 and 22078193)Double Thousand Plan of Jiangxi Province(Nos.461654,jxsq2019102052).
文摘Electrocatalytic glucose oxidation reaction(GOR)has attracted much attention owing to its crucial role in biofuel cell fabrication.Herein,we load MoO_(3)nanoparticles on carbon nanotubes(CNTs)and use a discharge process to prepare a noblemetal-free MC-60 catalyst containing MoO_(3),Mo_(2)C,and a Mo_(2)C–MoO_(3)interface.In the GOR,MC-60 shows activity as high as 745μA/(mmol/L cm^(2)),considerably higher than those of the Pt/CNT(270μA/(mmol/L cm^(2)))and Au/CNT catalysts(110μA/(mmol/L cm^(2))).In the GOR,the response minimum on MC-60 is as low as 8μmol/L,with a steady-state response time of only 3 s.Moreover,MC-60 has superior stability and anti-interference ability to impurities in the GOR.The better performance of MC-60 in the GOR is attributed to the abundant Mo sites bonding to C and O atoms at the MoO_(3)–Mo_(2)C interface.These Mo sites create active sites for promoting glucose adsorption and oxidation,enhancing MC-60 performance in the GOR.Thus,these results help to fabricate more effi cient noble-metal-free catalysts for the fabrication of glucose-based biofuel cells.
文摘Recent studies have highlighted the increase in treatment resistant depression. Of particular concern is the rising trend of depression and suicide rates among Young Adults. Ketamine was approved for treatment resistant depression in 2019 by the US Food and Drug Administration. It received an additional indication for treatment of suicidality. While intranasal Ketamine is approved for depression, recent data about intravenous infusion of Ketamine in controlled inpatient settings has been promising. ECT has a long-standing trend for being used for resistant depression and recent comparison trials have revealed positive results when head-to-head comparisons are made with Ketamine. Future studies need to focus on patient selection and wherein treatment algorithm should Ketamine be selected as treatment modality.
文摘Objective:To investigate the effects of propofol and ketamine on seizure duration,hemodynamics,and recovery of electroconvulsive therapy(ECT).Methods:This prospective randomized trial included patients who had undergone ECT under anesthesia.Patients received injection of propofol 1.5 mg/kg i.v.(the propofol group)or ketamine 0.8-1.2 mg/kg i.v.(the ketamine group)during ECT.Seizure duration,hemodynamics,and recovery were recorded and compared between the two groups.Results:This trial included 44 patinets with 22 patients receiving propofol and 22 patients receiving ketamine.The total dose of propofol and ketamine was(105.68±25.27)mg and(81.36±24.55)mg,respectively.The motor seizure and electroencephalogram seizure duration were prolonged in the ketamine group(P<0.001).The hemodynamics at the admission of the two groups were comparable(P>0.05);however,the mean systolic blood pressure during the procedure was significantly higher in the ketamine group(P=0.04).Besides,spontaneous eye-opening in the ketamine group took longer than that of the propofol group(P=0.001).Conclusion:Both propofol and ketamine are safe as anesthetic agents for modified ECT,and ketamine provides a longer seizure duration without hemodynamic instability or any significant complication.
基金Project supported by the National Natural Science Foundation of China(Nos.11772162 and11472140)the Inner Mongolia Autonomous Region Grassland Talent of China(No.12000-12102013)the Natural Science Foundation of Inner Mongolia Autonomous Region of China(No.2016MS0106)
文摘Considering the influence of the streaming potential and electroviscous effects, the analytical solutions for electromagnetohydrodynamic (EMHD) flows in parallel plate microchannels are obtained. The electrolyte solutions in the microchannels are taken as generalized Maxwell fluids, and slip boundary conditions are adopted. To accurately analyze the EMHD flow characteristics, the variation trends of the electroviscous effects with the corresponding parameters must be understood. The results show that the electroviscous effects increase with the increase in the relaxation time De, the slip coefficient , and the wall zeta potential 0. However, the increase in the inverse of the electrical double-layer (EDL) thickness K, the electrical oscillating Reynolds number Re, and the ionic P'eclet number Pe can decrease the electroviscous effects. We also demonstrate that the electroviscous effect on the EMHD flows of generalized Maxwell fluids is larger than that of Newtonian fluids. This work will be useful in designing EMHD flows in parallel plate microchannels.
文摘It is a retrospective qualitative study of all patients that had received ECT treatment in Khartoum National Psychiatric Hospitals in the period between January 2010 and December 2010 with special reference to indications, side effects, and outcome using the same outcome criteria used by the royal college of Psychiatrists (UK) for modified audit format. 85% from 269 of overall Sudanese patients who had received ECT showed remarkable clinical response, with no major adverse side effects. Interestingly, the response rate was over 90% for patients with mania spectrum diagnosis. 85% of our patients were under the age of 40. Two thirds of the patients, who received ECT, were male. The main indication for ECT (45%) was mania, while depression and mixed affective states constituted less than 25% of the sample. Conclusion: In comparison to the West, ECT plays a major role in the treatment of mania and manic spectrum disorders in Africa.
