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Progressive Grey Matter Volume Changes in Patients with Schizophrenia over 6 Weeks of Antipsychotic Treatment and Their Relationship to Clinical Improvement

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Neuroscience Bulletin 2018年第5期34卷 816-826页

作者： Xiao Zhang Yuyanan Zhang Jinmin Liao Sisi jiang jun Yan Weihua Yue Dai Zhang hao Yan Peking University Sixth Hospital/Institute of Mental Health Beijing 100191 China Key Laboratory of Mental Health Ministry of Health (Peking University) and National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital) Beijing 100191 China Peking-Tsinghua Joint Center for Life Sciences and PKU IDG/McGovern Institute for Brain Research Peking University Beijing 100871 China

Cross-sectional and longitudinal studies have identified widespread and progressive grey matter volume （GMV） reductions in schizophrenia, especially in the frontal lobe. In this study, we found a progressive GMV decrease in the rostral medial frontal cortex （rMFC, including the anterior cingulate cortex） in the patient group during a 6-week follow-up of 40 patients with schizophrenia and 31 healthy controls well-matched for age, gender, and education. The higher baseline GMV in the rMFC predicted better improvement in the positive score on the Positive and Negative Syndrome Scale （PANSS）, and this might be related to the improved reality-monitoring. Besides, a higher baseline GMV in the posterior rMFC predicted better remission of general symptoms, and a lesser GMV reduction in this region was correlated with better remission of negative symptoms, probably associated with ameliorated self-referential pro- cessing and social cognition. Besides, a shorter disease course and higher educational level contributed to better improvement in the general psychopathological PANSS score, and a family history was negatively associated with improvement of the negative and total PANSS scores. These phenomena might be important for understanding the neuropathological mechanisms underlying the symp- toms of schizophrenia and for making clinical decisions.

关键词： Schizophrenia Grey matter volume Rostral medial frontal cortex Treatment response Biomarker

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An Implicit Degree Ore-condition for Pancyclicity of Graphs

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Acta Mathematica Sinica,English Series 2013年第9期29卷 1773-1780页

作者： hao LI jun Qing CAI L.R.I UMR 8623 CNRS and Universit Paris-Sud 11 F-91405 Orsay France Institute for Interdisciplinary Research Jianghan University School of Management Qufu Normal University

In 1989, Zhu, Li and Deng introduced the definition of implicit degree of a vertex v in a graph G, denoted by id（v）. In this paper, we prove that if G is a 2-connected graph of order n such that id（u）＋ id（v） ≥ n for each pair of nonadjacent vertices u and v in G, then G is pancyclic unless G is bipartite, or else n = 4r, r ≥ 2 and G is isomorphic to F4r .

关键词： Implicit degree Hamilton cycle pancyclic graph

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Formation of Liquid Pools Entrapped within Solid Grains of ZA27 Alloys during Partial Remelting

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Journal of Materials Science & Technology 2002年第6期18卷 481-483页

作者： Tijun CHEN Yuan hao jun SUN State Key Laboratory of Mechanical Behavior for Materials Xi'an Jiaotong UniversityXi'an 710049China School of Materials Science and Engineering Gansu University of TechnologyLanzhou 730050China

The investigations were performed into the formation processes of liquid pools entrapped within solid grains of three ZA27 alloys, produced respectively by either grain refinement, or traditional permanent casting or mechanical stirring, during partial remelting at semisolid temperature of 460℃. The results show that the rapid coalescence of primary grains due to merging of secondary arms during the initial stage of partial remelting is the main cause for the formation of the entrapped liquid pools. This coalescence resulted in that a high quality of eutectics, especially the 77 phase, was entrapped within the grains, and then remelted to form liquid pools during the subsequent heating. In addition, the growth of the η phase decomposed from the primary α' phase and β phase and the subsequent remelting is another cause for the refined and permanent mould casting alloys. Furthermore, the agglomeration of the solid grains also resulted in the entrapment of liquid in the interior of grains.

关键词： Thixoforming ZA27 alloy Partial remelting Microstructure

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Multiplex network infomax:Multiplex network embedding via information fusion

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Digital Communications and Networks 2023年第5期9卷 1157-1168页

作者： Qiang Wang hao jiang Ying jiang Shuwen Yi Qi Nie Geng Zhang Electronic Information School Wuhan UniversityWuhan430072China School of Computer Science and Engineering Sun Yat-sen UniversityGuangzhou510006China China Electric Power Research Institute Beijing100192China

For networking of big data applications,an essential issue is how to represent networks in vector space for further mining and analysis tasks,e.g.,node classification,clustering,link prediction,and *** existing studies on this subject mainly concentrate on monoplex networks considering a single type of relation among ***,numerous real-world networks are naturally composed of multiple layers with different relation types;such a network is called a multiplex *** majority of existing multiplex network embedding methods either overlook node attributes,resort to node labels for training,or underutilize underlying information shared across multiple *** this paper,we propose Multiplex Network Infomax(MNI),an unsupervised embedding framework to represent information of multiple layers into a unified embedding *** be more specific,we aim to maximize the mutual information between the unified embedding and node embeddings of each *** the basis of this framework,we present an unsupervised network embedding method for attributed multiplex *** results show that our method achieves competitive performance on not only node-related tasks,such as node classification,clustering,and similarity search,but also a typical edge-related task,i.e.,link prediction,at times even outperforming relevant supervised methods,despite that MNI is fully unsupervised.

关键词： Network embedding Multiplex network Mutual information maximization

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Synthesis of silica powder with high pore volume by skeleton reinforcement

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Chinese Journal of Chemical Engineering 2022年第2期35卷 219-226页

作者： Hongwei Shan Xiaodong Zhou hao jiang Yanjie Hu Haibo jiang Chunzhong Li Shanghai Engineering Research Center of Hierarchical Nanomaterials Key Laboratory for Ultrafine Materials of Ministry of EducationSchool of Chemical EngineeringEast China University of Science&TechnologyShanghai 200237China School of Materials Science and Engineering East China University of Science&TechnologyShanghai 200237China State Key Laboratory of Chemical Engineering School of Chemical EngineeringEast China University of Science&TechnologyShanghai 200237China

In this paper,a method composed of gelation of basic skeleton(first step)and skeleton reinforcement process(second step)was introduced to synthesize silica powder with high pore volume through the reaction between water glass and sulfuric *** organic solvents were involved in the entire preparation process and the final product was collected by spray *** effect of concentration of base solution,gelation point p H value and skeleton reinforcement time on the BET specific surface area and pore volume of the prepared silica powder were investigated *** results show that,a basic skeleton with good dispersibility and high porosity was obtained when the concentration of base solution was 0.1 mol·L^(-1) and the gelation p H value reached *** the basic skeleton grew into a more uniform porous structure after 30 min skeleton *** these optimum conditions,silica powder prepared by skeleton reinforcement method had a BET specific surface area of 358.0 m^(2)·g^(-1),and its pore volume reached 2.18 cm^(3)·g^(-1),which was much higher than that of prepared by skeleton-free method(1.62 cm^(3)·g^(-1))and by direct gelation method(0.31 cm^(3)·g^(-1)).

关键词： Water glass Silica powder High pore volume Skeleton reinforcement Spray drying

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Three-dimensional cytoplasmic calcium propagation with boundaries

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Communications in Theoretical Physics 2021年第1期73卷 87-98页

作者： Han-Yu jiang jun He Department of Physics and Institute of Theoretical Physics Nanjing Normal UniversityNanjing210097China Sino-U.S.Center for Grazingland Ecosystem Sustainability/Pratacultural Engineering Laboratory of Gansu Province/Key Laboratory of Grassland Ecosystem Ministry of Education/College of Pratacultural ScienceGansu Agricultural UniversityLanzhou730070China

Ca^(2+)plays an important role in cell signal *** intracellular propagation is the most basic process of Ca^(2+)signaling,such as calcium wave and double messenger *** this work,with both numerical simulation and mean field ansatz,the three-dimensional probability distribution of Ca^(2+),which is read out by phosphorylation,is studied in two scenarios with *** coverage of distribution of Ca^(2+)is found at an order of magnitude ofμm,which is consistent with experimental observed calcium spike and *** results suggest that the double messenger system may occur in the ER-PM junction to acquire great *** buffer effect of kinase is also discussed by calculating the average position of phosphorylations and free Ca^(2+).The results are helpful to understand the mechanism of Ca^(2+)signaling.

关键词： Ca^(2+)signaling diffusion Gillespie algorithm mean field ansatz

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A satellite schedulability prediction algorithm for EO SPS

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Chinese Journal of Aeronautics 2013年第3期26卷 705-716页

作者： Li jun Li jun Jing Ning Hu Weidong Chen hao College of Electronic Science and Engineering National University of Defense Technology

With notably few exceptions, the existing satellite mission operations cannot provide the ability of schedulability prediction, including the latest satellite planning service （SPS） standard–Sensor Planning Service Interface Standard 2.0 Earth Observation Satellite Tasking Extension （EO SPS） approved by Open Geospatial Consortium （OGC）. The requestor can do nothing but waiting for the results of time consuming batch scheduling. It is often too late to adjust the request when receiving scheduling failures. A supervised learning algorithm based on robust decision tree and bagging support vector machine （Bagging SVM） is proposed to solve the problem above. The Bagging SVM is applied to improve the accuracy of classification and robust decision tree is utilized to reduce the error mean and error variation. The simulations and analysis show that a prediction action can be accomplished in near real-time with high accuracy. This means the decision makers can maximize the probability of successful scheduling through changing request parameters or take action to accommodate the scheduling failures in time.

关键词： Bagging support vector machine Classifiers Pattern recognition Remote sensing Robust decision tree Satellite schedulability prediction Sensor planning service

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A New Direct Search Method Based on Separable Fractional Interpolation Model

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Acta Mathematicae Applicatae Sinica 2016年第2期32卷 257-268页

作者： QIN NI CUI jiang hao LIU College of Sciences Nanjing University of Aeronautics and Astronautics College of Sciences Nanjing University of Technology

In this paper, we propose a new separable fractional interpolation model which can be established by 2n interpolation points where n is the number of variables. Based on this model, a new direct search method is presented. In this method, a new iterate is determined by solving the fractional interpolation model in trust region. Under mild assumptions, the convergence results of this method are given and proved, Numerical experiments show that the new method is promising.

关键词： direct search method fractional interpolation model trust region

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Generalized 3D Scattering Channel Model with MIMO Antenna Systems

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China Communications 2016年第5期13卷 66-81页

作者： Jie Zhou hao jiang Hisakazu Kikuchi Department of jiangsu Key Laboratory of Meteorological Observation and Information Processing Nanjing University of Information Science and Technology Department of Electrical and Electronic Engineering Niigata University

In this paper, a generalized three-dimensional(3D) scattering channel model for macrocellular land mobile environments is considered. This model simultaneously describes angular arrival of multi-path signals in the azimuth and elevation planes in an environment where uniformly distributed scatterers are assumed to be present in hemispheroids around the base station(BS) and mobile station(MS). Using this channel model, we first derive the closed-form expression for the joint and marginal probability density functions of the angle-of-arrival and time-of-arrival measured at the BS and the MS corresponding to the azimuth and elevation angles. Next, we derive an expression for the Doppler spectral distribution caused by motion of the MSs. Furthermore, we analyze the performance of multiple-input multiple-output antenna systems numerically. The results show that the proposed 3D scattering channel model performs better than previously proposed two-dimensional(2D) models for indoor and outdoor environments. We compare the results with previous scattering channel models and measurement results to validate the generalizability of our model.

关键词： 3D scattering channel model angle of arrival Doppler spectra multiple-input multiple-output

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The analytic smoothing effect of solutions for the nonlinear spatially homogeneous Landau equation with hard potentials

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Science China Mathematics 2022年第10期65卷 2079-2098页

作者： hao-Guang Li Chao-jiang Xu School of Mathematics and Statistics South-Central Minzu UniversityWuhan 430074China Key Laboratory of Mathematical Modelling and High Performance Computing of Air Vehicles(NUAA) Ministry of Industry and Information TechnologyNanjing 211106China Department of Mathematics Nanjing University of Aeronautics and AstronauticsNanjing 211106China Laboratoire de Mathematiques Universite de Rouen NormandieCNRS UMR 6085Saint-Etienne-du-Rouvray 76801France

In this work,we study the Cauchy problem of the nonlinear spatially homogeneous Landau equation with hard potentials in a close-to-equilibrium *** prove that the solution to the Cauchy problem with the initial datum in L^(2)enjoys an analytic regularizing effect,and the evolution of the analytic radius is the same as that of heat equations.

关键词： spatially homogeneous Landau equation analytic smoothing effect hard potentials

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