目的研究网格步态双重任务训练对脑梗死后轻度认知障碍患者站立平衡和认知疗效的影响。方法采用整群抽样法选取2019年11月—2020年8月在本院接受治疗的80例脑梗死后轻度认知障碍患者作为研究对象,采用随机数字表法将其分成对照组与观察...目的研究网格步态双重任务训练对脑梗死后轻度认知障碍患者站立平衡和认知疗效的影响。方法采用整群抽样法选取2019年11月—2020年8月在本院接受治疗的80例脑梗死后轻度认知障碍患者作为研究对象,采用随机数字表法将其分成对照组与观察组,各40例。对照组采取常规认知功能训练结合康复护理干预,观察组在对照组干预基础上联合网格步态双重任务训练。纳入蒙特利尔认知评估(Montreal Cognitive Assessment,MoCA)量表、精神状态检查简易智能(Mini-Mental State Examination,MMSE)量表评估患者认知情况,日常生活能力量表(Activity of Daily Living Scale,ADLS)评估患者日常生活能力,Berg平衡量表(Berg Balance Scale,BBS)以及计时-起立行走测试(Timed Up and Go test,TUG)测定患者平衡及步态和移动功能水平情况。结果干预后,观察组MMSE、MoCA评分高于对照组(P均<0.05);观察组ADLS得分低于对照组(P<0.05);观察组Berg评分高于对照组,TUG评分低于对照组(P均<0.05),差异均存在统计学意义。结论网格步态双重任务训练可有效改善脑梗死后轻度认知障碍患者的认知功能水平,提升其日常生活能力,并对其平衡能力、步态和移动功能的提升存在一定效果,具备重要的临床推广价值。展开更多
In this paper, we calculated the new physics contribution to theoretically very clean rare decay B → Xsvvin the general two-Higgs-doublet model (model Ⅲ). Within the considered parameter space, we found that (a) the...In this paper, we calculated the new physics contribution to theoretically very clean rare decay B → Xsvvin the general two-Higgs-doublet model (model Ⅲ). Within the considered parameter space, we found that (a) thenew physics contribution can provide one to two orders of enhancement to the branching ratio B(B → Xsvv) and cansaturate the experimental bound on B(B → Xs vv) in some regions of the parameter space; (b) besides the CLEO data ofB → Xsγ, the ALEPH upper limit on B(B → Xsvv) also leads to further constraint on the size of the Yukawa couplingλtt: λtt ＜ 6.4 for λbb = 2.7 and mH+ = 200 GeV.展开更多
We adopt a dynamical algebraic method to study a four-level excited-doublet atom model and obtain the explicit expressions of the time-evolution operator and the density operator for the system. The nonclassical effec...We adopt a dynamical algebraic method to study a four-level excited-doublet atom model and obtain the explicit expressions of the time-evolution operator and the density operator for the system. The nonclassical effects of the system, such as collapses and revivals of the atomic inversion and squeezing of the radiation field, are also discussed.展开更多
A subminiature mesoscopic cell, consisting of asymmetric double quantum dots capacitively coupled to a nearby mesoscopic circuit, is proposed, which can transform disordered noise energy to ordered electric energy. Tw...A subminiature mesoscopic cell, consisting of asymmetric double quantum dots capacitively coupled to a nearby mesoscopic circuit, is proposed, which can transform disordered noise energy to ordered electric energy. Two schemes, the noises originating from the nearby mesoscopic circuit and from the electromagnetic wave disturbance in external environment, are investigated. We found that the proposed cell can manifest as a good constant current source and the output current may not reach its largest value even if the circuit is shorted.展开更多
Sixty-five new vibronic levels of the Na2 4^3∑g^＋ state have been observed in the 33900-35200 cm^-1 energy region above the potential minimum of the ground state by pulsed perturbation facilitated optical-optical do...Sixty-five new vibronic levels of the Na2 4^3∑g^＋ state have been observed in the 33900-35200 cm^-1 energy region above the potential minimum of the ground state by pulsed perturbation facilitated optical-optical double resonance （PFOODR） fluorescence excitation spectroscopy. These new data fill the gap between the low-v levels mainly observed by continuous wave （CW） PFOODR spectroscopy and the high-v levels above the 3s＋3d limit observed by pulsed PFOODR with predissociation detection, Molecular constants are fitted below potential shelf around the 3s＋3d atomic limit with previously published data （mainly observed by CW PFOODR） and these new data. RKR potential curve has been calculated with the new constants. The constants are： Te= 32127.090 cm^-1,ωe=121.4099（0.20720） cm^-1, Be = 0.116287（0.0002300） cm^-1, Re=3.551 A, An error of the RKR potential curve of J. Chem. Phys. 108, 7707 （1998） is corrected.展开更多
文摘目的研究网格步态双重任务训练对脑梗死后轻度认知障碍患者站立平衡和认知疗效的影响。方法采用整群抽样法选取2019年11月—2020年8月在本院接受治疗的80例脑梗死后轻度认知障碍患者作为研究对象,采用随机数字表法将其分成对照组与观察组,各40例。对照组采取常规认知功能训练结合康复护理干预,观察组在对照组干预基础上联合网格步态双重任务训练。纳入蒙特利尔认知评估(Montreal Cognitive Assessment,MoCA)量表、精神状态检查简易智能(Mini-Mental State Examination,MMSE)量表评估患者认知情况,日常生活能力量表(Activity of Daily Living Scale,ADLS)评估患者日常生活能力,Berg平衡量表(Berg Balance Scale,BBS)以及计时-起立行走测试(Timed Up and Go test,TUG)测定患者平衡及步态和移动功能水平情况。结果干预后,观察组MMSE、MoCA评分高于对照组(P均<0.05);观察组ADLS得分低于对照组(P<0.05);观察组Berg评分高于对照组,TUG评分低于对照组(P均<0.05),差异均存在统计学意义。结论网格步态双重任务训练可有效改善脑梗死后轻度认知障碍患者的认知功能水平,提升其日常生活能力,并对其平衡能力、步态和移动功能的提升存在一定效果,具备重要的临床推广价值。
基金国家自然科学基金，the Research Foundation ofNanjing Normal University under
文摘In this paper, we calculated the new physics contribution to theoretically very clean rare decay B → Xsvvin the general two-Higgs-doublet model (model Ⅲ). Within the considered parameter space, we found that (a) thenew physics contribution can provide one to two orders of enhancement to the branching ratio B(B → Xsvv) and cansaturate the experimental bound on B(B → Xs vv) in some regions of the parameter space; (b) besides the CLEO data ofB → Xsγ, the ALEPH upper limit on B(B → Xsvv) also leads to further constraint on the size of the Yukawa couplingλtt: λtt ＜ 6.4 for λbb = 2.7 and mH+ = 200 GeV.
基金The project supported by National Natural Science Foundation of China under Grant Nos. 10174066 and 10275055
文摘We adopt a dynamical algebraic method to study a four-level excited-doublet atom model and obtain the explicit expressions of the time-evolution operator and the density operator for the system. The nonclassical effects of the system, such as collapses and revivals of the atomic inversion and squeezing of the radiation field, are also discussed.
文摘A subminiature mesoscopic cell, consisting of asymmetric double quantum dots capacitively coupled to a nearby mesoscopic circuit, is proposed, which can transform disordered noise energy to ordered electric energy. Two schemes, the noises originating from the nearby mesoscopic circuit and from the electromagnetic wave disturbance in external environment, are investigated. We found that the proposed cell can manifest as a good constant current source and the output current may not reach its largest value even if the circuit is shorted.
基金This work was supported by the National Natural Science Foundation of China（NSFC No. 20473042, N0. 20173029 and 10174042）, NKBRSF, and SRFDP of China and by RFBR（grant 05-03-39012） of Russia.
文摘Sixty-five new vibronic levels of the Na2 4^3∑g^＋ state have been observed in the 33900-35200 cm^-1 energy region above the potential minimum of the ground state by pulsed perturbation facilitated optical-optical double resonance （PFOODR） fluorescence excitation spectroscopy. These new data fill the gap between the low-v levels mainly observed by continuous wave （CW） PFOODR spectroscopy and the high-v levels above the 3s＋3d limit observed by pulsed PFOODR with predissociation detection, Molecular constants are fitted below potential shelf around the 3s＋3d atomic limit with previously published data （mainly observed by CW PFOODR） and these new data. RKR potential curve has been calculated with the new constants. The constants are： Te= 32127.090 cm^-1,ωe=121.4099（0.20720） cm^-1, Be = 0.116287（0.0002300） cm^-1, Re=3.551 A, An error of the RKR potential curve of J. Chem. Phys. 108, 7707 （1998） is corrected.
