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Systematic evaluation of traditional Chinese medicine for treating Parkinson's disease

Neural Regeneration Research 2010年第8期5卷 602-610页

作者： Wanmin chen Xinfu lian Department of Neurology Fangcun BranchGuangdong Provincial Hospital of Traditional Chinese MedicineGuangzhou 510370Guangdong ProvinceChina

BACKGROUND：To evaluate the quality of the literature addressing traditional Chinese medicine for treating Parkinson＇s *** SOURCE：A computer-based online search of Chinese publications from January 2001 to July 2008 was conducted in Chinese Biology Medical Disc Database and China National Knowledge Infrastructure. Search key words were Parkinson＇s disease, integrated traditional Chinese and Western medicine, traditional Chinese medicine therapy, and Chinese herb *** SELECTION：Articles describing randomized, controlled trials and quasi-randomized, controlled trials were included. Literature quality was assessed using the criteria-Systematic evaluation of clinical literature related to treatment of Parkinson＇s disease with traditional Chinese medicine. This included methodology, interventions in the treatment/control group, evaluation criterion of outcomes, and *** OUTCOME MEASURES：Evaluation criterion of outcomes （various score methods and evaluation scales）, methodological quality, and frequency distribution were all ***：A total of 33 articles with randomized, controlled trials were included. Of these, six described a random method, and the remaining did not describe random allocation methods or random sequence generation methods. None of the studies estimated sample size. Case descriptions of withdrawal and loss to follow-up were unclear. Both the Unified Parkinson＇s Disease Rating Scale and Webster scale were used in the eligible studies as evaluation ***：There are no high-quality studies that address traditional Chinese medicine therapy and integrated traditional Chinese and Western medicine for treating Parkinson＇s disease in China. Eligible studies were not performed in accordance with Consolidated Standards of Reporting Trials statement or Standards for Reporting Interventions in Controlled Trials of Acupuncture criteria, and the literature quality was low. The presently used criteria for evaluating ther

关键词： traditional Chinese medicine Parkinson's disease literature review systematic evaluation neurodegenerative disease neural regeneration

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A ring-shaped 12-Ti-substituted poly(polyoxometalate):synthesis,structure,and catalytic properties

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Science China Chemistry 2022年第5期65卷 892-897页

作者： Hai-Lou Li chen lian Guo-Yu Yang Key Laboratory of Cluster Science(Ministry of Education) School of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 102488China

A new ring-shaped 12-Ti-substituted poly(polyoxometalate)(poly(POM)),K_(10)H_(15)[{K_(2)Na(H_(2)O)_(3)}@{(Ti_(2)O)_(2)(Ti_(4)O_(4))_(2)(A-α-1,3,5-GeW_(9)O_(36))_(2)(A-α-2,3,4-GeW_(9)O_(36))_(2)}]·45H_(2)O(1),has been made under hydrothermal conditions,showing the highest number of Ti centers in Keggin-type poly(POM)family to *** obvious feature is that two types of novel chiral trivacant[GeW_(9)O_(36)]^(14-)(A-α-1,3,5-GeW_(9)O_(36)and A-α-2,3,4-GeW_(9)O_(36))segments have been first discovered in POM chemistry,and four[GeW_(9)O_(36)]^(14-)segments are alternately connected by two Ti_(2)O and two Ti_(4)O_(4)cores to form a ring-shaped poly(POM),in which two types of linking modes,Ti_(2)O and Ti_(4)O_(4)bridging cores,are observed for the first time in *** transformation of achiral precursors into chiral POM segments is of great significance for the POM synthetic ***,1 as a heterogeneous catalyst can effectively catalyze the oxidation of various thioethers and mustard gas simulant 2-chloroethyl ethyl sulfide(CEES).

关键词： polyoxometalate hydrothermal synthesis Ti-oxo cluster chiral catalytic oxidation

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A new 28-Ni-added poly(polyoxometalate)with B atoms:synthesis,structure and catalysis for Knoevenagel condensation

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Science China Chemistry 2023年第5期66卷 1394-1399页

作者： chen lian Hai-Lou Li Guo-Yu Yang Key Laboratory of Cluster Science of Ministry of Educaiton School of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing102488China

The synergistic effect of trivacant B-α-Ge W_(9)O_(34)fragments as structure-directing agents and inorganic B-O segments as intramolecular decoration afforded an unprecedented 28-Ni-added huge cluster K_(2)Na_(14)H_(10)[{Ni_(6)(OH)_(3)(H_(2)O)_(6)(Ge W_(9)O_(34))}{Ni_(8)-(μ_(6)-O)(OH)_(3)(H_(2)O)(BO(OH)_(2))(B_(2)O_(3)(OH)_(2))(Ge W_(9)O_(34))_(2)}]_(2)·46H_(2)O(1)under hydrothermal *** polyoxoanion of 1contains two half-units,[{Ni_(6)(OH)_(3)(H_(2)O)_(6)(Ge W_(9)O_(34))}{Ni_(8)(μ_(6)-O)(OH)_(3)(H_(2)O)(BO(OH)_(2))(B_(2)O_(3)(OH)_(2))(Ge W_(9)O_(34))_(2)}]^(13-),which joined together via Ni-O=W *** most fascinating feature is that each half-unit can be regarded as the fusion of an Ni_(6)(OH)_(3)(H_(2)O)_(6)(B-α-Ge W_(9)O_(34))({Ni_6Ge W_(9)})and a previously unobserved sandwiched Ni_(8)(μ_(6)-O)(OH)_(3)(H_(2)O)(BO(OH)_(2))(B_(2)O_(3)-(OH)_(2))(B-α-Ge W_(9)O_(34))_(2)({(Ni_(8)BB_(2))@(Ge W_(9))_(2)}),in which the{Ni_(8)BB_(2)}cluster contains a Lindqvist-type{Ni_(6)}core capped by two Ni O_(6)octahedra and further decorated by a BO(OH)_(2)({B})group and a binuclear B_(2)O_(3)(OH)_(2)({B_(2)})***,1 as a heterogeneous catalyst,has good catalytic activity for Knoevenagel condensation under mild reaction conditions.

关键词： polyoxometalate hydrothermal synthesis high-nuclearity TMAPs knoevenagel condensation

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Screening and evaluation for antibiosis resistance of the spring wheat accessions to the grain aphid,Sitobion miscanthi(Takahashi)(Hemiptera:Aphididae)

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Journal of Integrative Agriculture 2022年第8期21卷 2329-2344页

作者： Kifle Gebreegziabiher GEBRETSADIK ZHANG Yong chen Ju-lian State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193P.R.China Tigray Agricultural Research Institute Mekelle 492Ethiopia

Resistant cultivar deployment is an effective method for cereal aphid *** greenhouse conditions,preliminary antibiosis resistance screening was conducted on 114 Ethiopian and 22 Chinese spring wheat *** performing a bioassay to determine antibiosis resistance,aphid feeding behaviour and phenolic acid content analyses were performed on the aphid resistant wheat accessions by electrical penetration graph(EPG)and high performance liquid chromatography(HPLC),*** the wheat accessions,two high resistances,27moderate-resistances,and 35 low-resistances to Sitobion miscanthi were *** antibiosis resistance test showed prolonged pre-adult and pre-reproductive periods,shorter reproductive periods,lower fecundity,an intrinsic rate(rm)of increase,and a finite rate(λ)of increase of *** on Lunxuan 145,Wane,Lunxuan 6,204511,Lunxuan 103and 5215 than those on the aphid-susceptible accession Beijing *** changes for the parameters of aphid feeding behaviour,including spending a longer time in the penetration and phloem salivation phases and less time in the phloem sap-feeding phase on the resistant wheat accessions,indicated that the aphid resistance may occur during the phloem phase and may be due to difficulties in the mechanical probing of the mesophyll ***,the HPLC analysis showed higher contents of:1)ferulic acid in Lunxuan 145,Lunxuan 103 and Lunxuan 6;2)p-coumaric acid in Lunxuan145;3)vanillic acid in Lunxuan 145,Wane and Lunxuan 6;4)syringic acid in Lunxuan 103;and 5)caffeic acid in *** contents of some phenolic acids within wheat leaves,such as p-courmaric acid and vanillic acid showed significant positive correlation with the duration of aphid development,but negative correlation with the aphid *** concentrations of these acids may be the causes of antibiosis resistance to *** identification of grain aphid-resistant wheat accessions in our study will be helpful in future b

关键词： Sitobion miscanthi spring wheat accessions antibiosis resistance electronic penetration graph high-performance liquid chromatography phenolic acid concentrations

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The Dissipative Spectral Methods for the First Order Linear Hyperbolic Equations

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Numerical Mathematics(Theory,Methods and Applications) 2012年第3期5卷 493-508页

作者： lian chen Zhongqiang Zhang Heping Ma Department of Mathematics College of SciencesShanghai UniversityShanghai200444China Division of Applied Mathematics Brown UniversityProvidenceRhode Island02912USA

In this paper,we introduce the dissipative spectral methods(DSM)for the first order linear hyperbolic equations in one ***,we consider the Fourier DSM for periodic problems and the Legendre DSM for equations with the Dirichlet boundary *** error estimates of the methods are shown to be quasioptimal for variable-coefficients *** results are given to verify high accuracy of the DSM and to compare the proposed schemes with some high performance methods,showing some superiority in long-term integration for the periodic case and in dealing with limited smoothness near or at the boundary for the Dirichlet case.

关键词： First order hyperbolic equation dissipative spectral method error estimate

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The Maximum and Minimum Degree of the Random r-uniform r-partite Hypergraphs

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Acta Mathematicae Applicatae Sinica 2016年第4期32卷 867-874页

作者： Ai-lian chen Hao LI Fu-ji ZHANG College of Mathematics and Computer Science Fuzhou University Fuzhou 350108 China Laboratoire de Recherche en Informatique UMR 8623 C. N. R. S. -Universite de Paris-sud 91405-Orsay cedex France School of Mathematical Sciences Xiamen University Xiamen 361005 China

In this paper we consider the random r-uniform r-partite hypergraph model H（n1, n2,…, nr; n, p） which consists of all the r-uniform r-partite hypergraphs with vertex partition {V1,V2,…, Vr} where ｜Vi｜ = ni = ni（n）（1 ≤ i ≤ r） are positive integer-valued functions on n with n1 ＋n2 ＋… ＋nr =n, and each r-subset containing exactly one element in Vi （1 ≤ i ≤ r） is chosen to be a hyperedge of Hp ∈H（n1,n2,…,nr;n,p） with probability p = p（n）, all choices being independent. Let △V1 = △V1 （H） and δv1 = δv1（H） be the maximum and minimum degree of vertices in V1 of H, respectively; Xd,V1 = Xd,V1 （H）, Yd,V1 = Yd,V1 （H）, Zd,V1 = Zd,V1 （H） and Zc,d,V1=Zc,d,V1 （H） be the number of vertices in V1 of H with degree d, at least d, at most d, and between c and d, respectively. In this paper we obtain that in the space H（n1, n2,…, nr; n,p）, Xd,V1, Yd,V1, Zd,V1, and Zc,d,V1all have asymptotically Poisson distributions. We also answer the following two questions. What is the range of p that there exists a function D（n） such that in the space H（n1, n2,…,nr; n, p）, lim n→＋∞ P（△v1 = D（n）） = 1？ What is the range of p such that a.e., Hp ∈ H（n1,n2,...,nr;n,p） has a unique vertex in V1 with degree Av1（Hp）？ Both answers are p = o（logn1/N）, where N = r ∏ i=2 ni. The corresponding problems on δv1（Hp） also are considered, and we obtained the answers are p ≤ （1＋o（1））（logn1/N） andp=o （log n1/N）, respectively.

关键词： maximum degree minimum degree degree distribution random uniform hypergraphs

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The Degree Distribution of the Random Multigraphs

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Acta Mathematica Sinica,English Series 2012年第5期28卷 941-956页

作者： Ai lian chen Fu Ji ZHANG Hao LI College of Mathematics and Computer Science Fuzhou University School of Mathematical Sciences Xiamen University Laboratoire de Recherche en Informatique UMR 8623C.N.R.S.-Universitde Paris-sud

In this paper, as a generalization of the binomial random graph model, we define the model of multigraphs as follows： let G（n; {pk}） be the probability space of all the labelled loopless multigraphs with vertex set V = {v1, v2, ..., vn }, in which the distribution of tvi,vj, the number of the edges between any two vertices vi and vj is P{tvi,vj =k}=Pk, k=0, 1,2,...and they are independent of each other. Denote by Xd = Xd（G）,Yd = Yd（G）, Zd = Zd（G） and Zcd = Zcd（G） the number of vertices of G with degree d, at least d, at most d and between c and d. In this paper, we discuss the distribution of Xd, Yd, Zd and Zcd in the probability space G（n; （Pk））.

关键词： Degree distribution random multigraph degree sequence

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A new 4-Ti-added polyoxometalate

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Tungsten 2024年第2期6卷 465-471页

作者： Hai-Lou Li chen lian Guo-Yu Yang MOE Key Laboratory of Cluster Science School of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 102488China

A new inorganic–organic hybrid 4-Ti-added polyoxometalate:[H_(2)N(CH_(3))_(2)]_(2)Na_(3)H_(5)[{Ti(C_(2)O_(4))(H_(2)O)}_(2){Ti(C_(2)O_(4))}_(2)(B-β-SbW_(9)O_(33))_(2)]·22H_(2)O(1)has been successfully made and further characterized by infrared spectroscopy,thermogravimetric analysis,powder X-ray diff raction and single-crystal X-ray diff *** polyoxoanion of 1 exhibits a Krebs-type structure that is constructed from two[B-β-SbW_(9)O_(33)]^(9)−fragments fused together by a belt of four additional Ti atoms decorated by oxalate ***,1 as a heterogeneous catalyst exhibits high activity for Knoevenagel condensation under mild reaction conditions.

关键词： Polyoxometalate Ti-added POM Krebs-type structure Knoevenagel condensation

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Elevation,bedrock exposure,land use,interbedded limestone and clastic rock,and vegetation coverage dominate the spatiotemporal variability of soil erosion in karst basin

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Journal of Mountain Science 2023年第9期20卷 2519-2535页

作者： chen Mei GAO Jia-yong chen Hong-lian JING Jun LI Rui School of Karst Science Guizhou Normal UniversityGuiyang 550001China State Engineering Technology Institute for Karst Desertification Control Guiyang 550001China

Soil erosion is a prominent environmental problem in karst *** the spatiotemporal variability of soil erosion and the factors that influence soil erosion is of great significance for regional soil erosion prevention and ***,the mechanisms influencing the characteristic features of the karst basins,such as bedrock exposure and lithology,still need to be further *** study used GIS technology,the Revised Universal Soil Loss Equation model,Getis–Ord Gi*,and partial least squares regression(PLSR)to identify the dominant factors influencing soil erosion and the spatiotemporal variability of soil erosion in 31 sub-basins of the Dabang River Basin(DRB),a typical karst area of Southwest China,from 2010 to *** results indicated that soil erosion in the DRB from 2010 to 2020 was generally decreasing,the mean soil erosion in the DRB in 2010,2015 and 2020 was 18.46,16.51 and 15.29 t ha^(-1)a^(-1),*** the study period,the area of slight erosion increased by 26.39%(706.54 km^(2)),while severe erosion enlarged by 26.36 km^(2).Spatially,the DRB was primarily affected by medium and slight soil *** hot spot areas of soil erosion(key control areas)were mainly concentrated in the central and southern parts of the basin,decreasing each year,and the area of soil erosion hot pots has decreased from 43.22%to 20.60%.PLSR decoupling results show that elevation,bedrock exposure,land use type,interbedded limestone and clastic rock,and vegetation coverage were identified as the key variables affecting soil erosion,explaining 52.8%of soil erosion variability,with a high value of the Variable Importance on Projection(VIP)more than *** results can be used as a reference for comprehensive control of soil erosion and water loss in the basin.

关键词： Soil erosion Karst basin RUSLE model Spatiotemporal variability PLSR

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Preparation and properties of hydrophobic and transparent wood

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Journal of Bioresources and Bioproducts 2022年第4期7卷 295-305页

作者： Linhu Ding Xiaoshuai Han lian chen Shaohua Jiang Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsCollege of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037China

Natural wood(NW)was treated with sodium chlorite to obtain delignified wood(DW)in this study,then epoxy was impregnated to get transparent wood(TW),and finally the TW was coated with perfluorodecyltriethoxysilane(FAS)to acquire hydrophobic and transparent wood(HTW).The hydroxyl group generated by the hydrolysis of the FAS and the hydroxyl group of the epoxy underwent a dehydration condensation reaction to generate a Si-O-C bond,while the FAS molecules were also dehydrated and condensed to form a Si-O-Si bond according to Fourier transform infrared(FT-IR)spectroscopy and X-ray photoelectron spectroscopy(XPS).Therefore,the mechanical property and thermal stability of the HTW were better than the TW based on their tensile tests and thermogravimetric analysis(TGA).Due to the large reduction of hydroxyl in epoxy,the hydrophobicity of the HTW was greatly improved compared with the TW,and their contact angles were 113°and 77°,*** results of scanning electron microscopy(SEM)showed that epoxy was filled in the voids of *** addition,the coating of the FAS did not obviously reduce the transmittance,and the transmittance of the TW and HTW was 69%and 67%at 750 *** in all,the HTW has potential for application in transparent decoration.

关键词： Epoxy Hydrophobicity Perfluorodecyltriethoxysilane Transmittance Transparent wood

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