In this work, a model of two-temperature generalized thermoelasticity without energy dissipation for an elastic half-space with constant elastic parameters is constructed. The Laplace transform and state-space techniq...In this work, a model of two-temperature generalized thermoelasticity without energy dissipation for an elastic half-space with constant elastic parameters is constructed. The Laplace transform and state-space techniques are used to obtain the general solution for any set of boundary conditions. The general solutions are applied to a specific problem of a half-space subjected to a moving heat source with a constant velocity. The inverse Laplace transforms are computed numerically, and the comparisons are shown in figures to estimate the effects of the heat source velocity and the two-temperature parameter.展开更多
Aim:During the past decade,there has been an increasing interest in the evaluation of cognitive function in myasthenia gravis(MG),neuromuscular transmission disorder caused by acetylcholine receptor auto-antibodies.Ho...Aim:During the past decade,there has been an increasing interest in the evaluation of cognitive function in myasthenia gravis(MG),neuromuscular transmission disorder caused by acetylcholine receptor auto-antibodies.However,the results of previous studies on cognition and MG are inconsistent and controversial.This study aimed to evaluate cognition in patients with mild/moderate grades of MG.Methods:This study included 20 patients with MG with a mean age of 28.45±8.89 years and duration of illness of 3.52±1.15 years.Cognition was tested using a sensitive battery of psychometric testing(Mini-mental State Examination[MMSE],Stanford-Binet Intelligence Scale 4^(th) edition[SBIS]and Wechsler Memory Scale-Revised[WMS-R])and by recording P300 component of event-related potentials(ERPs),a neurophysiological analog for cognitive function.Results:Compared with healthy subjects(n=20),patients had lower total scores of cognitive testing(MMSE,SBIS and WMS-R)(P=0.001),higher Beck Depression Inventory 2^(nd) edition scores(P=0.0001)and prolonged latencies(P=0.01)and reduced amplitudes(P=0.001)of P300 component of ERPs.Correlations were identified between total scores of cognitive testing and age(r=-0.470,P=0.010),duration of illness(r=-0.788,P=0.001)and depression scores(r=-0.323,P=0.045).Using linear regression analysis and after controlling for age and depression scores,a significant correlation was identified between total scores of cognitive testing and duration of illness(β=-0.305,P=0.045).Conclusion:Patients with mild/moderate MG may have cognitive dysfunction.This is important to determine prognosis and managing patients.展开更多
文摘In this work, a model of two-temperature generalized thermoelasticity without energy dissipation for an elastic half-space with constant elastic parameters is constructed. The Laplace transform and state-space techniques are used to obtain the general solution for any set of boundary conditions. The general solutions are applied to a specific problem of a half-space subjected to a moving heat source with a constant velocity. The inverse Laplace transforms are computed numerically, and the comparisons are shown in figures to estimate the effects of the heat source velocity and the two-temperature parameter.
文摘Aim:During the past decade,there has been an increasing interest in the evaluation of cognitive function in myasthenia gravis(MG),neuromuscular transmission disorder caused by acetylcholine receptor auto-antibodies.However,the results of previous studies on cognition and MG are inconsistent and controversial.This study aimed to evaluate cognition in patients with mild/moderate grades of MG.Methods:This study included 20 patients with MG with a mean age of 28.45±8.89 years and duration of illness of 3.52±1.15 years.Cognition was tested using a sensitive battery of psychometric testing(Mini-mental State Examination[MMSE],Stanford-Binet Intelligence Scale 4^(th) edition[SBIS]and Wechsler Memory Scale-Revised[WMS-R])and by recording P300 component of event-related potentials(ERPs),a neurophysiological analog for cognitive function.Results:Compared with healthy subjects(n=20),patients had lower total scores of cognitive testing(MMSE,SBIS and WMS-R)(P=0.001),higher Beck Depression Inventory 2^(nd) edition scores(P=0.0001)and prolonged latencies(P=0.01)and reduced amplitudes(P=0.001)of P300 component of ERPs.Correlations were identified between total scores of cognitive testing and age(r=-0.470,P=0.010),duration of illness(r=-0.788,P=0.001)and depression scores(r=-0.323,P=0.045).Using linear regression analysis and after controlling for age and depression scores,a significant correlation was identified between total scores of cognitive testing and duration of illness(β=-0.305,P=0.045).Conclusion:Patients with mild/moderate MG may have cognitive dysfunction.This is important to determine prognosis and managing patients.
