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FeTe1-xSex monolayer films： towards the realization of high-temperature connate topological superconductivity

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Science Bulletin 2017年第7期62卷 503-507页

作者： Xun Shi Zhi-Qing Han Pierre Richard Xian-Xin Wu Xi-Liang Peng Tian Qian shan-cai wang Jiang-Ping Hu Yu-Jie Sun Hong Ding Beijing National Laboratory for Condensed Matter Physics and Institute of Physics Chinese Academy of Sciences Beijing 100190 China Department of Physics Bering Key Laboratory of Opto-Electronic Functional Materials and Micro-nano Devices Renmin University of China Beijing 100872 China Collaborative Innovation Center of Quantum Matter Beijing 100190 China School of Physical Sciences University of Chinese Academy of Sciences Beijing 100190 China

We performed angle-resolved photoemission spectroscopy studies on a series of FeTe_(1-x)Se_x monolayer films grown on Sr TiO_*** superconductivity of the films is robust and rather insensitive to the variations of the band position and effective mass caused by the substitution of Se by ***,the band gap between the electron-and hole-like bands at the Brillouin zone center decreases towards band inversion and parity exchange,which drive the system to a nontrivial topological state predicted by theoretical *** results provide a clear experimental indication that the FeTe_(1-x)Se_x monolayer materials are high-temperature connate topological superconductors in which band topology and superconductivity are integrated intrinsically.

关键词： Topological superconductivity Iron-based superconductors Thin film

High-resolution angle-resolved photoemission study of large magnetoresistance topological semimetal CaAl4

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Chinese Physics B 2021年第9期30卷 490-494页

作者： Xu-Chuan Wu Shen Xu Jian-Feng Zhang Huan Ma Kai Liu Tian-Long Xia shan-cai wang Department of Physics Beijing Key Laboratory of Optoelectronic Functional Materials and Micro-nano DevicesRenmin University of ChinaBeijing 100872China

Extremely large magnetoresistance(XMR)has been explored in many nonmagnetic topologically nontrivial/trivial semimetals,while it is experimentally ambiguous which mechanism should be responsible in a specific material due to the complex electronic *** this paper,the magnetoresistance origin of single crystal CaAl4 with C2/m structure at low temperature is investigated,exhibiting unsaturated magnetoresistance of~3000%at 2.5 K and 14 T as the fingerprints of XMR *** the combination of ARPES and the first-principles calculations,we elaborate multiband features and anisotropic Fermi surfaces,which can explain the mismatch of isotropic two-band *** the structural phase transition from I4/mmm to C2/m has been recognized,the subtle impact on electronic structure is revealed by our ARPES *** that both charge compensation and potential topologically nontrivial band structure exist in CaAl4,our findings report CaAl4 as a new reference material for exploring the XMR phenomena.

关键词： magnetoresistance angle-resolved photoemission spectroscopy(ARPES) topological semimetal

Transcranial Sonographic Alterations of Substantia Nigra and Third Ventricle in Parkinson＆#39;s Disease with or without Dementia

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Chinese Medical Journal 2017年第19期130卷 2291-2295页

作者： Zhi-Fen Dong cai-shan wang Ying-Chun Zhang Ying Zhang Yu-Jing Sheng Hua Hu Wei-Feng Luo Chun-Feng Liu Department of Ultrasound The Second Affiliated Hospital of Soochow University Suzhou Jiangsu 215004 China Department of Psychiatry The Second Affiliated Hospital of Soochow University Suzhou Jiangsu 215004 China Department of Neurology The Second Affiliated Hospital of Soochow University Suzhou Jiangsu 215004 China

Background： Numerous studies have demonstrated that patients with Parkinson＆#39;s disease （PD） have a higher prevalence of substantia nigra （SN） hyperechogenicity compared with controls. Our aim was to explore the neuroimaging characteristics of transcranial sonography （TCS） of patients with PD and those with PD with dementia （PDD）. The correlation between the echogenicity of the SN and clinical symptoms in Chinese patients with PDD was also assessed. Methods： The ratios of SN hyperechogenicity （SN＋）, maximum sizes of SN＋, and widths of third ventricle （TV） were measured using TCS for all the recruited patients. Data were analyzed using one-way analysis of variance, rank-sum test, Chi-square test, and receiver-operating characteristic （ROC） curve analysis. Results： The final statistical analysis included 46 PDD patients, 52 PD patients, and 40 controls. There were no significant differences in ratios of SN＋ and maximum sizes of SN＋ between PDD and PD groups （P 〉 0.05）. TV widths were significantly larger in PDD group （7.1± 1.9 mm） than in PD group （6.0± 2.0 mm） and controls （5.9 ± 1.5 mm, P 〈 0.05）; however, the ratios of enlarged TV did not differ among the three groups （P = 0.059）. When cutoff value was set at 6.8 mm, the TV width had a relatively high sensitivity and specificity in discriminating between PDD and PD groups （P = 0.030） and between PDD group and controls （P = 0.003）, based on ROC curve analysis. In PDD patients, SN＋ was more frequently detected in akinetic-rigid subgroup, and patients with SN＋ showed significantly higher Hoehn and Yahr stage and Nonmotor Symptoms Questionnaire scores （P 〈 0.05）. Conclusions： Compared to Chinese patients with PD, patients with PDD had a wider TV, altered SN sonographic features, and more severe clinical symptoms. Our findings suggest that TCS can be used to assess brain atrophy in PD and may be useful in discriminating between PD with and without dementia.

关键词： Dementia Parkinson's Disease Substantia Nigra Third Ventricle Transcranial Sonography

P2Y1 receptor in Alzheimer’s disease

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Neural Regeneration Research 2025年第2期20卷 440-453页

作者： shan Luo Yifei wang Tatsuhiro Hisatsune Department of Integrated Biosciences The University of TokyoKashiwaJapan

Alzheimer’s disease is the most frequent form of dementia characterized by the deposition of amyloid-beta plaques and neurofibrillary tangles consisting of hyperphosphorylated *** amyloid-beta plaques has been a primary direction for developing Alzheimer’s disease treatments in the last ***,existing drugs targeting amyloid-beta plaques have not fully yielded the expected results in the clinic,necessitating the exploration of alternative therapeutic *** evidence unravels that astrocyte morphology and function alter in the brain of Alzheimer’s disease patients,with dysregulated astrocytic purinergic receptors,particularly the P2Y1 receptor,all of which constitute the pathophysiology of Alzheimer’s *** receptors are not only crucial for maintaining normal astrocyte function but are also highly implicated in neuroinflammation in Alzheimer’s *** review delves into recent insights into the association between P2Y1 receptor and Alzheimer’s disease to underscore the potential neuroprotective role of P2Y1 receptor in Alzheimer’s disease by mitigating neuroinflammation,thus offering promising avenues for developing drugs for Alzheimer’s disease and potentially contributing to the development of more effective treatments.

关键词： astrocytes neuroinflammation P2Y1 receptor purinergic receptor

Successful emergency surgical intervention in acute non-STsegment elevation myocardial infarction with rupture:A case report

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World Journal of Clinical Cases 2025年第4期13卷 41-47页

作者： Xing-Po Li Zi-shan wang Hong-Xia Yu shan-shan wang Department of Cardiovascular Medicine Huantai County Hospital of Traditional Chinese MedicineZibo 256400Shandong ProvinceChina Department of Cardiovascular Medicine Zibo Hospital of Integrated Traditional Chinese and Western MedicineZibo 255500Shandong ProvinceChina

BACKGROUND The incidence of acute myocardial infarction(AMI)is rising,with cardiac rupture accounting for approximately 2%of deaths in patients with acute ST-segment elevation myocardial infarction(STEMI).Ventricular free wall rupture(FWR)occurs in approximately 2%of AMI patients and is notably rare in patients with *** of cardiac rupture include left ventricular FWR,ventricular septal rupture,and papillary muscle *** FWR usually leads to acute cardiac tamponade or electromechanical dissociation,where standard resuscitation efforts may not be *** septal rupture and papillary muscle rupture often result in refractory heart failure,with mortality rates over 50%,even with surgical or percutaneous repair *** SUMMARY We present a rare case of an acute non-STEMI patient who suffered sudden FWR causing cardiac tamponade and loss of consciousness immediate before undergoing coronary *** resuscitation and emergency open-heart repair along with coronary artery bypass grafting resulted in successful patient *** This case emphasizes the risks of AMI complications,shares a successful treatment scenario,and discusses measures to prevent such complications.

关键词： Acute non-ST segment elevation myocardial infarction Cardiac rupture Acute myocardial infarction Free wall rupture Case report

Sonographic Alteration of Basal Ganglia in Different Forms of Primary Focal Dystonia： A Cross-sectional Study

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Chinese Medical Journal 2016年第8期129卷 942-945页

作者： Ying Zhang Ying-Chun Zhang Yu-Jing Sheng Xiao-Fang Chen cai-shan wang Qi Ma Han-Bing Chen Li-Fang Yu Cheng-Jie Mao Kang-Ping Xiong Wei-Feng Luo Chun-Feng Liu Department of Ultrasound The Second Affiliated Hospital of Soochow University Suzhou Jiangsu 215004 China Department of Neurology The Second Affiliated Hospital of Soochow University Suzhou Jiangsu 215004 China

Background：Few studies have addressed whether abnormalities in the lenticular nucleus （LN） are characteristic transcranial sonography （TCS） echo features in patients with primary *** study aimed to explore alterations in the basal ganglia in different forms of primary focal ***：A cross-sectional observational study was performed between December 2013 and December 20 1 4 in 80 patients with different forms of primary focal dystonia and 55 neurologically normal control *** was performed in patients and control *** comparisons of multiple rates were used to compare LN hyperechogenicity ratios between control and patient ***：Thirteen individuals were excluded due to poor temporal bone windows,and two subjects were excluded due to disagreement in evaluation by ***,70 patients （cervical dystonia,n =30;blepharospasm,n =30;oromandibular dystonia,n =10） and 50 normal controls were included in the final *** hyperechogenicity was observed in 51% （36/70） of patients with primary focal dystonia,compared with 12% （6/50） of controls （P 〈 0.001）.Substantia nigra hyperechogenicity did not differ between the two *** hyperechogenicity was observed in 73% （22/30） of patients with cervical dystonia,a greater prevalence than in patients withblepharospasm （33%,10/30,P =0.002） and oromandibular dystonia （40%,4/10,P =0.126）.LN hyperechogenicity was more frequently observed in patients with cervical dystonia compared with controls （73% vs.12%,P 〈 0.001）;however,no significant difference was detected in patients with blepharospasm （33% vs.12%,P =0.021） or oromandibular dystonia （40% vs.12%,P =0.088）.Conclusions：LN hyperechogenicity is more frequently observed in patients with primary focal dystonia than in *** does not appear to be a characteristic TCS echo feature in patients with blepharospasm or oromandibular dystonia.

关键词： Basal Ganglia Lenticular Nucleus Primary Focal Dystonia Transcranial Sonography

Correlation between the rock mass properties and maximum horizontal stress:A case study of overcoring stress measurements

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 39-48页

作者： Peng Li Meifeng cai Shengjun Miao Yuan Li Yu wang Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China

Understanding the mechanical properties of the lithologies is crucial to accurately determine the horizontal stress *** investigate the correlation between the rock mass properties and maximum horizontal stress,the three-dimensional(3D)stress tensors at 89 measuring points determined using an improved overcoring technique in nine mines in China were adopted,a newly defined characteristic parameter C_(ERP)was proposed as an indicator for evaluating the structural properties of rock masses,and a fuzzy relation matrix was established using the information distribution *** results indicate that both the vertical stress and horizontal stress exhibit a good linear growth relationship with *** is no remarkable correlation between the elastic modulus,Poisson's ratio and depth,and the distribution of data points is scattered and ***,there is no obvious relationship between the rock quality designation(RQD)and *** maximum horizontal stress σ_(H) is a function of rock properties,showing a certain linear relationship with the C_(ERP)at the same *** addition,the overall change trend of σ_(H) determined by the established fuzzy identification method is to increase with the increase of C_(ERP).The fuzzy identification method also demonstrates a relatively detailed local relationship betweenσ_H and C_(ERP),and the predicted curve rises in a fluctuating way,which is in accord well with the measured stress data.

关键词： overcoring stress measurements elastic modulus Poisson's ratio rock quality designation maximum horizontal stress fuzzy identification

SensFL:Privacy-Preserving Vertical Federated Learning with Sensitive Regularization

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 385-404页

作者： Chongzhen Zhang Zhichen Liu Xiangrui Xu Fuqiang Hu Jiao Dai Baigen cai Wei wang School of Automation and Intelligence Beijing Jiaotong UniversityBeijing100044China Shuohuang Railway Development Co. Ltd.National Energy GroupCangzhou062350China Beijing Key Laboratory of Security and Privacy in Intelligent Transportation School of Computer Science and TechnologyBeijing Jiaotong UniversityBeijing100044China

In the realm of Intelligent Railway Transportation Systems,effective multi-party collaboration is crucial due to concerns over privacy and data *** Federated Learning(VFL)has emerged as a promising approach to facilitate such collaboration,allowing diverse entities to collectively enhance machine learning models without the need to share sensitive training ***,existing works have highlighted VFL’s susceptibility to privacy inference attacks,where an honest but curious server could potentially reconstruct a client’s raw data from embeddings uploaded by the *** vulnerability poses a significant threat to VFL-based intelligent railway transportation *** this paper,we introduce SensFL,a novel privacy-enhancing method to against privacy inference attacks in ***,SensFL integrates regularization of the sensitivity of embeddings to the original data into the model training process,effectively limiting the information contained in shared *** reducing the sensitivity of embeddings to the original data,SensFL can effectively resist reverse privacy attacks and prevent the reconstruction of the original data from the *** experiments were conducted on four distinct datasets and three different models to demonstrate the efficacy of *** results show that SensFL can effectively mitigate privacy inference attacks while maintaining the accuracy of the primary learning *** results underscore SensFL’s potential to advance privacy protection technologies within VFL-based intelligent railway systems,addressing critical security concerns in collaborative learning environments.

关键词： Vertical federated learning privacy defenses

Application of the improved dung beetle optimizer,muti-head attention and hybrid deep learning algorithms to groundwater depth prediction in the Ningxia area,China

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 18-23页

作者： Jiarui cai Bo Sun Huijun wang Yi Zheng Siyu Zhou Huixin Li Yanyan Huang Peishu Zong Collaborative Innovation Center on forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environment ChangeNanjing University of Information Science and TechnologyNanjingChina Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) ZhuhaiChina China Meteorological Administration Key Laboratory of Transportation MeteorologyNanjingChina Jiangsu Meteorological Observatory NanjingChina

Due to the lack of accurate data and complex parameterization,the prediction of groundwater depth is a chal-lenge for numerical *** learning can effectively solve this issue and has been proven useful in the prediction of groundwater depth in many *** this study,two new models are applied to the prediction of groundwater depth in the Ningxia area,*** two models combine the improved dung beetle optimizer(DBO)algorithm with two deep learning models:The Multi-head Attention-Convolution Neural Network-Long Short Term Memory networks(MH-CNN-LSTM)and the Multi-head Attention-Convolution Neural Network-Gated Recurrent Unit(MH-CNN-GRU).The models with DBO show better prediction performance,with larger R(correlation coefficient),RPD(residual prediction deviation),and lower RMSE(root-mean-square error).Com-pared with the models with the original DBO,the R and RPD of models with the improved DBO increase by over 1.5%,and the RMSE decreases by over 1.8%,indicating better prediction *** addition,compared with the multiple linear regression model,a traditional statistical model,deep learning models have better prediction performance.

关键词： Groundwater depth Multi-head attention Improved dung beetle optimizer CNN-LSTM CNN-GRU Ningxia