This study aimed to determine the effectiveness of comprehensive rehabilitation for patients with aneurysmal subarachnoid hemorrhage (aSAH) and to explore the factors influencing the prognosis of rehabilitation. This ...This study aimed to determine the effectiveness of comprehensive rehabilitation for patients with aneurysmal subarachnoid hemorrhage (aSAH) and to explore the factors influencing the prognosis of rehabilitation. This was a retrospective study. Twenty-five patients with aSAH were treated with physical therapy, occupational therapy, speech therapy, cognitive therapy, music therapy, Chinese acupuncture, hyperbaric oxygen, and transcranial magnetic stimulation. The general data of all patients were collected, and the functional scores at admission were compared with those at discharge. The Mini Mental State Examination, Fugl-Meyer Assessment Scale (FMAS) for motor and balance assessment, Holden Functional Ambulation Classification (FAC), modified Rankin Scale, National Institute of Health Stroke Scale, Modified Barthel Index for activities of daily living (ADL), and Glasgow Outcome Scale were significantly improved among 25 patients with aSAH after 1 month of comprehensive rehabilitation training. Hydrocephalus was an independent factor of the ability to perform ADLs (odds ratio, 0.29;95% confidence interval, 2.03. 3.15;p = 0.000). The improvement of ADLs in aSAH patients was not related to sex, surgical method, aneurysm location, age, or smoking status. Comprehensive and professional rehabilitation is effective for the cognition, movement, walking, ADLs, and functional prognosis of patients with aSAH, while early hydrocephalus may be a risk factor for poor ADLs.展开更多
Generating intense ultrashort pulses with high-quality spatial modes is crucial for ultrafast and strong-field science and can be achieved by nonlinear supercontinuum generation(SCG)and pulse compression.In this work,...Generating intense ultrashort pulses with high-quality spatial modes is crucial for ultrafast and strong-field science and can be achieved by nonlinear supercontinuum generation(SCG)and pulse compression.In this work,we propose that the generation of quasi-stationary solitons in periodic layered Kerr media can greatly enhance the nonlinear lightmatter interaction and fundamentally improve the performance of SCG and pulse compression in condensed media.With both experimental and theoretical studies,we successfully identify these solitary modes and reveal their unified condition for stability.Space-time coupling is shown to strongly influence the stability of solitons,leading to variations in the spectral,spatial and temporal profiles of femtosecond pulses.Taking advantage of the unique characteristics of these solitary modes,we first demonstrate single-stage SCG and the compression of femtosecond pulses from 170 to 22 fs with an efficiency>85%.The high spatiotemporal quality of the compressed pulses is further confirmed by highharmonic generation.We also provide evidence of efficient mode self-cleaning,which suggests rich spatiotemporal self-organization of the laser beams in a nonlinear resonator This work offers a route towards highly efficient,simple,stable and highly flexible SCG and pulse compression solutions for state-of-the-art ytterbium laser technology.展开更多
Nonadiabatic phase matching of high-harmonic generation(HHG)driven by few-cycle laser pulses is essential for extending harmonic energy and generating isolated attosecond pulses.However,understanding nonadiabatic HHG ...Nonadiabatic phase matching of high-harmonic generation(HHG)driven by few-cycle laser pulses is essential for extending harmonic energy and generating isolated attosecond pulses.However,understanding nonadiabatic HHG is challenging due to the complex interplay of various optical phases driven by temporally and spatially varying laser fields.Theoretical calculations typically rely on computationally demanding 3-dimensional simulations,which can make it difficult to extract the essential features of nonadiabatic HHG.In this work,we develop a computationally efficient 2-dimensional model that directly considers various phase contributions of HHG.Our model can well explain the experimentally observed pressure-and intensity-dependent behaviors of different harmonic orders.By appropriately parameterizing the single-atom response,our model can also estimate the variation of HHG spectra under different driving conditions.Our model can provide an efficient tool for the design and optimization of HHG-based applications.展开更多
文摘This study aimed to determine the effectiveness of comprehensive rehabilitation for patients with aneurysmal subarachnoid hemorrhage (aSAH) and to explore the factors influencing the prognosis of rehabilitation. This was a retrospective study. Twenty-five patients with aSAH were treated with physical therapy, occupational therapy, speech therapy, cognitive therapy, music therapy, Chinese acupuncture, hyperbaric oxygen, and transcranial magnetic stimulation. The general data of all patients were collected, and the functional scores at admission were compared with those at discharge. The Mini Mental State Examination, Fugl-Meyer Assessment Scale (FMAS) for motor and balance assessment, Holden Functional Ambulation Classification (FAC), modified Rankin Scale, National Institute of Health Stroke Scale, Modified Barthel Index for activities of daily living (ADL), and Glasgow Outcome Scale were significantly improved among 25 patients with aSAH after 1 month of comprehensive rehabilitation training. Hydrocephalus was an independent factor of the ability to perform ADLs (odds ratio, 0.29;95% confidence interval, 2.03. 3.15;p = 0.000). The improvement of ADLs in aSAH patients was not related to sex, surgical method, aneurysm location, age, or smoking status. Comprehensive and professional rehabilitation is effective for the cognition, movement, walking, ADLs, and functional prognosis of patients with aSAH, while early hydrocephalus may be a risk factor for poor ADLs.
基金the National Natural Science Foundation of China(Grant No.11874121)the Shanghai Municipal Science and Technology Basic Research Project(Grant No.19JC1410900).C.S.T.acknowledges support from the National Natural Science Foundation of China(No.11874123)the National Key Research and Development Program of China(No.2016YFA0300902).C J.acknowledges support from the National Natural Science Foundation of China(No.11774175 and No.91950102).A.B.acknowledges support from Austrian Science Fund(Grant No.I 4566).Z.T.is thankful for the support from the Alexander-von-Humboldt foundation.
文摘Generating intense ultrashort pulses with high-quality spatial modes is crucial for ultrafast and strong-field science and can be achieved by nonlinear supercontinuum generation(SCG)and pulse compression.In this work,we propose that the generation of quasi-stationary solitons in periodic layered Kerr media can greatly enhance the nonlinear lightmatter interaction and fundamentally improve the performance of SCG and pulse compression in condensed media.With both experimental and theoretical studies,we successfully identify these solitary modes and reveal their unified condition for stability.Space-time coupling is shown to strongly influence the stability of solitons,leading to variations in the spectral,spatial and temporal profiles of femtosecond pulses.Taking advantage of the unique characteristics of these solitary modes,we first demonstrate single-stage SCG and the compression of femtosecond pulses from 170 to 22 fs with an efficiency>85%.The high spatiotemporal quality of the compressed pulses is further confirmed by highharmonic generation.We also provide evidence of efficient mode self-cleaning,which suggests rich spatiotemporal self-organization of the laser beams in a nonlinear resonator This work offers a route towards highly efficient,simple,stable and highly flexible SCG and pulse compression solutions for state-of-the-art ytterbium laser technology.
基金Z.T.gratefully acknowledges support from the National Key Research and Development Program of China(Grant Nos.2021YFA1400200 and 2022YFA1404700)National Natural Science Foundation of China(Grant No.12221004)+4 种基金Shanghai Municipal Science and Technology Basic Research Project(Grant No.19JC1410900)B.L.and C.Jj.were supported by the National Natural Science Foundation of China(Grant No.12274230)Funding of NJUST(Grant No.TSXK2022D005)Y.L.acknowledges support from the National Natural Science Foundation of China(Grant No.12034013)G.F.acknowledges support from the National Natural Science Foundation of China(Grant No.12374318).
文摘Nonadiabatic phase matching of high-harmonic generation(HHG)driven by few-cycle laser pulses is essential for extending harmonic energy and generating isolated attosecond pulses.However,understanding nonadiabatic HHG is challenging due to the complex interplay of various optical phases driven by temporally and spatially varying laser fields.Theoretical calculations typically rely on computationally demanding 3-dimensional simulations,which can make it difficult to extract the essential features of nonadiabatic HHG.In this work,we develop a computationally efficient 2-dimensional model that directly considers various phase contributions of HHG.Our model can well explain the experimentally observed pressure-and intensity-dependent behaviors of different harmonic orders.By appropriately parameterizing the single-atom response,our model can also estimate the variation of HHG spectra under different driving conditions.Our model can provide an efficient tool for the design and optimization of HHG-based applications.