Solid-state polymer sodium batteries(SPSBs)are promising candidates for achieving higher energy density and safe energy storage.However,interface issues between oxide cathode and solid-state polymer electrolyte are a ...Solid-state polymer sodium batteries(SPSBs)are promising candidates for achieving higher energy density and safe energy storage.However,interface issues between oxide cathode and solid-state polymer electrolyte are a great challenge for their commercial application.In contrast,soft sulfur-based materials feature better interface contact and chemical compatibility.Herein,an interfacial compatible polysulfide Ti_(4)P_(8)S_(29) with robust Ti-S bonding and a highly active P-S unit is tailored as a high-performance cathode for SPSBs.The Ti_(4)P_(8)S_(29) cathode possesses a three-dimensional channel structure for offering ample Na+diffusion pathways.The assembled poly(vinylidene fluoride-co-hexafluoropropylene)(PVDF-HFP)-based SPSBs deliver a discharge capacity of 136 mAh·g^(-1)at 0.5C after 200 cycles.Furthermore,a discharge capacity of 88 mAh·g^(-1)is retained after 600 cycles at a high rate of 2C,surpassing many cathode materials in SPSBs.A dual-site redox of Ti^(4+)/Ti^(3+)and S^(-)/S^(2-)is verified by X-ray photoelectron spectroscopy(XPS)and cyclic voltammetry(CV)tests.Interestingly,a refined locally-ordered amorphous structure is unveiled by in situ and ex situ characterizations.The as-formed electrode structure with lots of open channels and isotropic properties are more beneficial for ion diffusion on the interface of electrode and solid-state polymer electrolytes(SPEs),leading to faster Na+diffusion kinetics.This work proposes a strategy of modulating open-channel to boost conversion kinetics in polysulfide cathode and opens a new pathway for designing high-performance SPSBs.展开更多
Sodium ion batteries(SIBs)currently lack sufficient anode materials that simultaneously demonstrate exceptional capacity,durability under prolonged cycling,and rapid charging capabilities.Antimony(Sb)has emerged as an...Sodium ion batteries(SIBs)currently lack sufficient anode materials that simultaneously demonstrate exceptional capacity,durability under prolonged cycling,and rapid charging capabilities.Antimony(Sb)has emerged as an attractive alloy-based anode candidate due to its notable theoretical capacity,nevertheless grappling with significant challenges including substantial structural deformation during operation and sluggish ion transport kinetics.Herein,we atomically disperse Sb into open Cu-S frameworks with high cyclic stability and good conductivity.In-situ and ex-situ analyses reveal the multistep reversible reaction processes during the charging(formation of Cu_(3)SbS_(4))and discharging(precipitation of fracture-resistant Na_(3)Sb in the ionic-conductive Na_(x)Cu_(2)S_(2)/Na_(2)S matrix)processes.As a result,the thoughtfully engineered Cu_(3)SbS_(4)anode,without requiring additional carbon compositing,attains a high reversible specific capacity of 597 mAh g^(−1)at a 0.3 C rate.It also maintains approximately 95%capacity retention even at 15 C after 4300 cycles.The assembled Cu_(3)SbS_(4)||Na_(3)V_(2)(PO_(4))_(3)full cell achieves 10 C high rate performance and demonstrates excellent cycling stability of∼94.0%capacity retention after 200 cycles.Our approach to material design might offer a novel method for creating durable,high-capacity,and high-rate anode materials for sodium-ion batteries.展开更多
ObjectiveTo investigate the clinical effect of acupuncture among patients with dysphagia after cerebral infarction, and the nerve remodeling of acupuncture using diffusion tensor imaging.MethodsOne hundred and twenty ...ObjectiveTo investigate the clinical effect of acupuncture among patients with dysphagia after cerebral infarction, and the nerve remodeling of acupuncture using diffusion tensor imaging.MethodsOne hundred and twenty patients with dysphagia after cerebral infarction were randomly assigned to either acupuncture group or sham-acupuncture group with a 1:1 ratio. All patients received usual care and swallowing function training of neurology department. Additionally, acupuncture was applied at Sìshéncōng (四神聪EX-HN1), Băihuì (百会GV20), Tàiyáng (太阳EX-HN5), Fēngchí (风池GB20) and Shésānzhēn (舌三针three-tongue needling points, Extra) in acupuncture group. The needles were retained for 30 min each time, and five times a week for three weeks as a course of treatment. Two courses of treatments were required in total. In sham-acupuncture group, the blunt needles were put into the needle sleeve, and the top of needle was fixed on the skin. During treatment the blunt needle tip only had slight contact with the skin without any penetration. The blunt needle tips were placed on EX-HN1, GV20, EX-HN5, GB20 and three-tongue needling points, respectively. The duration of treatment in sham-acupuncture group was the same as that in acupuncture group. Before and after treatment, all patients underwent Kubota water swallowing test to evaluate the clinical effect. Using diffusion tensor image (DTI), the nerve remodeling was detected.ResultsClinical effect: After treatment and assessed by water swallowing test, there were 38 cases of normal swallowing function in acupuncture group, higher than 15 cases in sham-acupuncture group (P < 0.05). Nerve remodeling: (1) apparent diffusion coefficient (ADC): before treatment, ADC in acupuncture group and sham acupuncture group were 1.76 ± 0.45 mm/s and 1.68 ± 0.51 mm/s, respectively. After treatment, ADC were 0.66 ± 0.15 mm/s and 0.74 ± 0.11 mm/s, respectively. The difference in ADC had no statistical significance between two groups after treatment (P > 0.05);(2) fractional anisotropy (FA): after treatment, FA of acupuncture group was 0.57 ± 0.06, which was significantly higher than that of sham-acupuncture group (P < 0.05);(3) observation of different infarct lesions: after treatment, ADC of temporal lobe infarction in acupuncture group was (0.57 ± 0.11) mm/s, lower than 0.82 ± 0.24 mm/s of sham acupuncture group, while FA in acupuncture group was 0.61 ± 0.07, higher than 0.45 ± 0.10 in sham-acupuncture group, both with statistical significance (both P < 0.05). Regarding the changes of FA maps for temporal lobe infarction before and after treatment, the transverse bundles of the white matter fibers increased remarkably in infarct lesions and on the healthy side of temporal lobe.ConclusionAcupuncture could improve the swallowing function of patients with dysphagia after cerebral infarction. It reduced ADC and increased FA, especially among patients with temporal lobe infarction after treatment. Acupuncture may have a remodeling effect on transverse cortical fibers after temporal lobe infarction.展开更多
Epithelial-mesenchymal transition(EMT)is a critical cellular process in embryonic development and is also the basis for wound repair,tissue regeneration,and cancer metastasis(Zhao et al.,2015).During cancer migration ...Epithelial-mesenchymal transition(EMT)is a critical cellular process in embryonic development and is also the basis for wound repair,tissue regeneration,and cancer metastasis(Zhao et al.,2015).During cancer migration and invasion,EMT involved comprehensive reprogramming processes related to cytoskeletal remodeling,cell differentiation,epigenetic regulation and metabolism(Plikus et al.,2015).In fact,the understanding of EMT in cancer development is still limited.In 2015.展开更多
Due to the relatively sluggish charge carrier separation in metal sulfides,the photocatalytic activity of them is still far lower than expected.Herein,sulfur vacancies and in-plane SnS_(2)/SnO_(2) heterojunction were ...Due to the relatively sluggish charge carrier separation in metal sulfides,the photocatalytic activity of them is still far lower than expected.Herein,sulfur vacancies and in-plane SnS_(2)/SnO_(2) heterojunction were successfully introduced into the SnS_(2) nanosheets through high energy ball-milling.These defective structures were studied by the electron paramagnetic resonance,Raman spectra,X-ray photoelectron spectroscopy,and high-resolution transmission electron microscope analyses.The sulfur vacancies and in-plane heterojunctions strongly accelerate the separation of photoexcited electron-hole pairs,as confirmed by the photo luminesce nce emission spectra and time-resolved photoluminescence decay spectra.The introduction of sulfur vacancies and in-plane heterojunction in SnS_(2) nanosheets results in roughly six times higher photodegrading rate for methyl orange and four times higher photocatalytic reduction rate of Cr6+than those of pure SnS_(2) nanosheets.展开更多
Objectives: To observe the effectiveness of acupuncture therapy for relieving throat and opening orifice on dysphagia due to different brain infarct sites.Methods: According to the random number table, 128 patients wi...Objectives: To observe the effectiveness of acupuncture therapy for relieving throat and opening orifice on dysphagia due to different brain infarct sites.Methods: According to the random number table, 128 patients with post-stroke dysphagia were divided into group A(63 cases, intervention with deglutition training and acupuncture) and group B(65 cases,intervention with simple deglutition training). The conventional treatment and deglutition rehabilitation training in neurology department were used in the two groups. In group B, according to patient's condition, the rehabilitation trainings, such as respiration and neck movement range were used selectively.In group A, on the base of deglutition training, acupuncture therapy for relieving throat and opening orifice was supplemented. The acupoints included Sìshéncōng(四神聪EX HN 1),Bāihuì(百会GV 20), Tàiyang(太阳EX-HN5) bilateral, Fēngchi(风池GB 20) bilateral and Shésānzhēn(舌三针).Electrostimulator was attached on EX-HN 1, bilateral GB 20 and Shesanzhen(舌三针). Needles were retained for 30 min in each treatment. The treatment was given once a day, 5 treatments a week and the treatment for 3 weeks as 1 course. After 6 weeks of treatment, the deglutition ability scale developed by Fujishima Ichiro was adopted to determine the therapeutic effects and observe the score increase for dysphagia related to brain infarct sites before and after treatment.Results: In assessment after 6-week treatment, the improvements of deglutition ability were different corresponding to different brain infarct sites in group A. Specially, the improvements in the patients with dysphagia related to cerebral hemisphere infarction in group A were better than group B(8.68 ±1.12 vs7.32 ±0.91, P<0.05), followed by the improvements in the patients with dysphagia related to internal capsule/basal ganglia/diencephalon infarction(6.53 ±0.65 vs 6.36 ±0.84, P>0.05). Regarding the therapeutic effects in comparison of the two groups, the total effective rates in dysphagia related to cerebral hemisphere infarction were different between the two groups significantly(96.67% vs 82.75%, P< 0.05), as well as in the patients related to internal capsule/basal ganglia/diencephalon infarction(88.89% vs 66.67%,P<0.05). The therapeutic effects were not different in the patients related to cerebral stem and cerebella infarction between the two groups(P>0.05).Conclusion: The acupuncture therapy for relieving throat and opening orifice combined with deglutition training achieves the satisfactory therapeutic effects on dysphagia induced by cortical infarction in stroke.However, a large sample and multicentral clinical trial with this therapy is needed for a further argument so that this therapy is likely promoted in clinical practice in future.展开更多
This paper focuses on the improvement of the stipulation of the crime of refusing to perform the obligation of information network security management.The topic is based on the practical issues of the crime,which has ...This paper focuses on the improvement of the stipulation of the crime of refusing to perform the obligation of information network security management.The topic is based on the practical issues of the crime,which has caused the disputes over the necessity of the establishment and rationality of the constitutive requirements of the crime.Through the analysis of reality,politics,norms and value,the reasons why many practical issues emerge are found in improper setting of content of the crime.The Interpretation on the Application of Law in Criminal Cases of Illegal Use of Information Network and Assisting Criminal Activities of Information Network cannot break the line to solve the essential problems existing in the crime.The only solution is to improve the content of the crime through modifying the law:to delete the order element,restricting the subjective aspect to negligence,and to amplify the scope of the harmful results.展开更多
基金supported by the National Key Research and Development Program of China(No.2019YFA0210600)the National Natural Science Foundation of China(Nos.51922103 and 51972326)+1 种基金the Natural Science Foundation of Jiangxi Province(Nos.20224BAB204002 and GJJ211320)Jingdezhen Science and Technology Bureau(No.20212GYZD009-15)。
文摘Solid-state polymer sodium batteries(SPSBs)are promising candidates for achieving higher energy density and safe energy storage.However,interface issues between oxide cathode and solid-state polymer electrolyte are a great challenge for their commercial application.In contrast,soft sulfur-based materials feature better interface contact and chemical compatibility.Herein,an interfacial compatible polysulfide Ti_(4)P_(8)S_(29) with robust Ti-S bonding and a highly active P-S unit is tailored as a high-performance cathode for SPSBs.The Ti_(4)P_(8)S_(29) cathode possesses a three-dimensional channel structure for offering ample Na+diffusion pathways.The assembled poly(vinylidene fluoride-co-hexafluoropropylene)(PVDF-HFP)-based SPSBs deliver a discharge capacity of 136 mAh·g^(-1)at 0.5C after 200 cycles.Furthermore,a discharge capacity of 88 mAh·g^(-1)is retained after 600 cycles at a high rate of 2C,surpassing many cathode materials in SPSBs.A dual-site redox of Ti^(4+)/Ti^(3+)and S^(-)/S^(2-)is verified by X-ray photoelectron spectroscopy(XPS)and cyclic voltammetry(CV)tests.Interestingly,a refined locally-ordered amorphous structure is unveiled by in situ and ex situ characterizations.The as-formed electrode structure with lots of open channels and isotropic properties are more beneficial for ion diffusion on the interface of electrode and solid-state polymer electrolytes(SPEs),leading to faster Na+diffusion kinetics.This work proposes a strategy of modulating open-channel to boost conversion kinetics in polysulfide cathode and opens a new pathway for designing high-performance SPSBs.
基金supported by the National Natural Science Foundation of China(22471283,52202327)the Science and Technology Commission of Shanghai Municipality(22ZR1471300,23DZ1200800)+1 种基金the Natural Science Foundation of Jiangxi Province(20224BAB204002,GJJ211320)the Jingdezhen Science and Technology Bureau(20212GYZD009-15)。
文摘Sodium ion batteries(SIBs)currently lack sufficient anode materials that simultaneously demonstrate exceptional capacity,durability under prolonged cycling,and rapid charging capabilities.Antimony(Sb)has emerged as an attractive alloy-based anode candidate due to its notable theoretical capacity,nevertheless grappling with significant challenges including substantial structural deformation during operation and sluggish ion transport kinetics.Herein,we atomically disperse Sb into open Cu-S frameworks with high cyclic stability and good conductivity.In-situ and ex-situ analyses reveal the multistep reversible reaction processes during the charging(formation of Cu_(3)SbS_(4))and discharging(precipitation of fracture-resistant Na_(3)Sb in the ionic-conductive Na_(x)Cu_(2)S_(2)/Na_(2)S matrix)processes.As a result,the thoughtfully engineered Cu_(3)SbS_(4)anode,without requiring additional carbon compositing,attains a high reversible specific capacity of 597 mAh g^(−1)at a 0.3 C rate.It also maintains approximately 95%capacity retention even at 15 C after 4300 cycles.The assembled Cu_(3)SbS_(4)||Na_(3)V_(2)(PO_(4))_(3)full cell achieves 10 C high rate performance and demonstrates excellent cycling stability of∼94.0%capacity retention after 200 cycles.Our approach to material design might offer a novel method for creating durable,high-capacity,and high-rate anode materials for sodium-ion batteries.
基金Supported by Scientific research project of traditional Chinese medicine of Fujian Provincial Health Commission:No.202130220305Fujian Natural Science:No.13181526。
文摘ObjectiveTo investigate the clinical effect of acupuncture among patients with dysphagia after cerebral infarction, and the nerve remodeling of acupuncture using diffusion tensor imaging.MethodsOne hundred and twenty patients with dysphagia after cerebral infarction were randomly assigned to either acupuncture group or sham-acupuncture group with a 1:1 ratio. All patients received usual care and swallowing function training of neurology department. Additionally, acupuncture was applied at Sìshéncōng (四神聪EX-HN1), Băihuì (百会GV20), Tàiyáng (太阳EX-HN5), Fēngchí (风池GB20) and Shésānzhēn (舌三针three-tongue needling points, Extra) in acupuncture group. The needles were retained for 30 min each time, and five times a week for three weeks as a course of treatment. Two courses of treatments were required in total. In sham-acupuncture group, the blunt needles were put into the needle sleeve, and the top of needle was fixed on the skin. During treatment the blunt needle tip only had slight contact with the skin without any penetration. The blunt needle tips were placed on EX-HN1, GV20, EX-HN5, GB20 and three-tongue needling points, respectively. The duration of treatment in sham-acupuncture group was the same as that in acupuncture group. Before and after treatment, all patients underwent Kubota water swallowing test to evaluate the clinical effect. Using diffusion tensor image (DTI), the nerve remodeling was detected.ResultsClinical effect: After treatment and assessed by water swallowing test, there were 38 cases of normal swallowing function in acupuncture group, higher than 15 cases in sham-acupuncture group (P < 0.05). Nerve remodeling: (1) apparent diffusion coefficient (ADC): before treatment, ADC in acupuncture group and sham acupuncture group were 1.76 ± 0.45 mm/s and 1.68 ± 0.51 mm/s, respectively. After treatment, ADC were 0.66 ± 0.15 mm/s and 0.74 ± 0.11 mm/s, respectively. The difference in ADC had no statistical significance between two groups after treatment (P > 0.05);(2) fractional anisotropy (FA): after treatment, FA of acupuncture group was 0.57 ± 0.06, which was significantly higher than that of sham-acupuncture group (P < 0.05);(3) observation of different infarct lesions: after treatment, ADC of temporal lobe infarction in acupuncture group was (0.57 ± 0.11) mm/s, lower than 0.82 ± 0.24 mm/s of sham acupuncture group, while FA in acupuncture group was 0.61 ± 0.07, higher than 0.45 ± 0.10 in sham-acupuncture group, both with statistical significance (both P < 0.05). Regarding the changes of FA maps for temporal lobe infarction before and after treatment, the transverse bundles of the white matter fibers increased remarkably in infarct lesions and on the healthy side of temporal lobe.ConclusionAcupuncture could improve the swallowing function of patients with dysphagia after cerebral infarction. It reduced ADC and increased FA, especially among patients with temporal lobe infarction after treatment. Acupuncture may have a remodeling effect on transverse cortical fibers after temporal lobe infarction.
基金supported by the National Natural Science Foundation of China(Nos.31671375,31871339 and 31801120)the National Key Research and Development Program of China(No.2017YFC1201200)the research start-up fellowship of University of the Sunshine Coast to MZ.
文摘Epithelial-mesenchymal transition(EMT)is a critical cellular process in embryonic development and is also the basis for wound repair,tissue regeneration,and cancer metastasis(Zhao et al.,2015).During cancer migration and invasion,EMT involved comprehensive reprogramming processes related to cytoskeletal remodeling,cell differentiation,epigenetic regulation and metabolism(Plikus et al.,2015).In fact,the understanding of EMT in cancer development is still limited.In 2015.
基金National Key Research And Development Program(No.2016YFB0901600)CAS Center for Excellence in Superconducting Electronics+3 种基金the Key Research Program of Chinese Academy of Sciences(Nos.QYZDJ-SSWJSC013 and KGZD-EW-T06)National Natural Science Foundation of China(Nos.21871008 and 21801247)Jingdezhen Science and Technology Bureau(No.20192GYZD008-21)Science Foundation for Youth Scholar of State Key Laboratory of High Performance Ceramics and Superfine Microstructures(No.SKL 201804)。
文摘Due to the relatively sluggish charge carrier separation in metal sulfides,the photocatalytic activity of them is still far lower than expected.Herein,sulfur vacancies and in-plane SnS_(2)/SnO_(2) heterojunction were successfully introduced into the SnS_(2) nanosheets through high energy ball-milling.These defective structures were studied by the electron paramagnetic resonance,Raman spectra,X-ray photoelectron spectroscopy,and high-resolution transmission electron microscope analyses.The sulfur vacancies and in-plane heterojunctions strongly accelerate the separation of photoexcited electron-hole pairs,as confirmed by the photo luminesce nce emission spectra and time-resolved photoluminescence decay spectra.The introduction of sulfur vacancies and in-plane heterojunction in SnS_(2) nanosheets results in roughly six times higher photodegrading rate for methyl orange and four times higher photocatalytic reduction rate of Cr6+than those of pure SnS_(2) nanosheets.
基金Supported by Youth Talent Program of Longyan Municipal Science and Technology Bureau:2017LY085
文摘Objectives: To observe the effectiveness of acupuncture therapy for relieving throat and opening orifice on dysphagia due to different brain infarct sites.Methods: According to the random number table, 128 patients with post-stroke dysphagia were divided into group A(63 cases, intervention with deglutition training and acupuncture) and group B(65 cases,intervention with simple deglutition training). The conventional treatment and deglutition rehabilitation training in neurology department were used in the two groups. In group B, according to patient's condition, the rehabilitation trainings, such as respiration and neck movement range were used selectively.In group A, on the base of deglutition training, acupuncture therapy for relieving throat and opening orifice was supplemented. The acupoints included Sìshéncōng(四神聪EX HN 1),Bāihuì(百会GV 20), Tàiyang(太阳EX-HN5) bilateral, Fēngchi(风池GB 20) bilateral and Shésānzhēn(舌三针).Electrostimulator was attached on EX-HN 1, bilateral GB 20 and Shesanzhen(舌三针). Needles were retained for 30 min in each treatment. The treatment was given once a day, 5 treatments a week and the treatment for 3 weeks as 1 course. After 6 weeks of treatment, the deglutition ability scale developed by Fujishima Ichiro was adopted to determine the therapeutic effects and observe the score increase for dysphagia related to brain infarct sites before and after treatment.Results: In assessment after 6-week treatment, the improvements of deglutition ability were different corresponding to different brain infarct sites in group A. Specially, the improvements in the patients with dysphagia related to cerebral hemisphere infarction in group A were better than group B(8.68 ±1.12 vs7.32 ±0.91, P<0.05), followed by the improvements in the patients with dysphagia related to internal capsule/basal ganglia/diencephalon infarction(6.53 ±0.65 vs 6.36 ±0.84, P>0.05). Regarding the therapeutic effects in comparison of the two groups, the total effective rates in dysphagia related to cerebral hemisphere infarction were different between the two groups significantly(96.67% vs 82.75%, P< 0.05), as well as in the patients related to internal capsule/basal ganglia/diencephalon infarction(88.89% vs 66.67%,P<0.05). The therapeutic effects were not different in the patients related to cerebral stem and cerebella infarction between the two groups(P>0.05).Conclusion: The acupuncture therapy for relieving throat and opening orifice combined with deglutition training achieves the satisfactory therapeutic effects on dysphagia induced by cortical infarction in stroke.However, a large sample and multicentral clinical trial with this therapy is needed for a further argument so that this therapy is likely promoted in clinical practice in future.
文摘This paper focuses on the improvement of the stipulation of the crime of refusing to perform the obligation of information network security management.The topic is based on the practical issues of the crime,which has caused the disputes over the necessity of the establishment and rationality of the constitutive requirements of the crime.Through the analysis of reality,politics,norms and value,the reasons why many practical issues emerge are found in improper setting of content of the crime.The Interpretation on the Application of Law in Criminal Cases of Illegal Use of Information Network and Assisting Criminal Activities of Information Network cannot break the line to solve the essential problems existing in the crime.The only solution is to improve the content of the crime through modifying the law:to delete the order element,restricting the subjective aspect to negligence,and to amplify the scope of the harmful results.
