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Primary hepatic neuroendocrine tumor case with a preoperative course of 26 years: A case report and literature review

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World Journal of Gastroenterology 2018年第24期24卷 2640-2646页

作者： xiang-fei meng Ying-Wei Pan Zhan-Bo Wang Wei-Dong Duan Department of Hepatobiliary Surgery Chinese PLA General Hospital Department of Pathology Chinese PLA General Hospital

Primary hepatic neuroendocrine tumor(PHNET) is an extremely rare liver tumor. Patients often have no clinical symptoms or have only non-specific symptoms, such as abdominal pain and abdominal mass. The clinical manifestations, disease development, treatment methods, and treatment outcomes of PHNET vary greatly among cases. Here we report a case of PHNET with a confirmed 26-year survival before surgery. The patient was a 56-year-old female. A large right hepatic mass was detected when the patient was 30 years old. The tumor could not be removed during exploratory laparotomy, and constriction of the right hepatic artery and biopsy were conducted. Pathological results indicated a diagnosis of benign tumor, but a confirmed diagnosis was not reached. Twenty-six years after the patient had been living with the tumor, she sought treatment again because of tumor progression. After systematic evaluation of the resectability, the tumor was resected. Based on the examination results of the gastrointestinal tract and lungs, intraoperative examination results, pathological findings, and long-term follow-up results, the diagnosis of PHNET was confirmed. This case represents the longest reported survival time for a PHNET patient before removal of the tumor.

关键词： Primary hepatic neuroendocrine tumor Surgery Pathology Radiology Surgical plan Follow up

Genetic association between the polymorphism of cytosolicPLA2 gene family and schizophrenia

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Frontiers of Medicine 2010年第1期4卷 101-105页

作者： Qiong YU xiang-fei meng Jie-Ping SHI Ya-Qin YU Department of Epidemiology and Biostatistics Center of Medical GenomicsSchool of Public HealthJilin UniversityChangchun 130021China

Abnormal phospholipid metabolism in the brain plays an important role in neuropsychiatric *** A2(PLA2)is a crucial element for normal neuro-physiological *** study aims to investi-gate the genetic association between the polymorphism of cytosolic phospholipase A2(cPLA2)family genes and schizophrenia among Han Chinese in the northern part of *** polymerase chain reaction-based ligase detec-tion reaction(PCR-LDR)was applied to detect the genotype ten single nucleotide polymorphisms(SNPs)of cPLA2 family genes among 201 pedigrees consisting of fathers,mothers and affected offsprings with *** pedigrees were collected from 2000 to *** relative risk(HRR)test,transmission disequili-brium test(TDT),haplotype transmission analysis and multiple locus analysis were conducted to analyze the genotyping *** genotypic frequency of cPLA2 gene did not deviate from Hardy-Weinberg equilibrium either in case or control *** and TDT showed that the ten SNPs were not associated with schizophrenia(P>0.05).Analysis for haplotype transmission showed that no haplotype system was associated with schizophrenia(P>0.05).The conditioning on allele(COA)and conditioning on gene(COG)tests showed disease associations with the haplotype of rs2162886-rs1668589,rs891014-rs1668589 and rs2307279-rs7542180(χ2=6.913,P=0.032;χ2=8.393,P=0.015;χ2=8.447,P=0.038).Our data suggest that many loci in the cPLA2 family genes may be associated with schizophrenia.

关键词： schizophrenia cytosolic phospholipase A2 ligase detection reaction polymorphism

Computationally predicting spin semiconductors and half metals from doped phosphorene monolayers

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Frontiers of physics 2019年第4期14卷 101-107页

作者： Jing-Hua Feng Geng Li xiang-fei meng Xiao-Dong Jian Zhen-Hong Dai Yin-Chang Zhao Zhen Zhou College of Computer National University of Defense Technology Changsha 410073 China National Supercomputer Center in Tianjin Tianjin 300457China Department of Physics Yantai UniversityYantai 264005China School of Materials Science and Engineering Computational Centre for Molecular Science Institute of New Energy Material ChemistryNankai University Tianjin 300350China

First-principles computations are performed to investigate phosphorene monolayers doped with 30 metal and nonmetal atoms. The binding energies indicate the stability of all doped configurations. Interestingly, the magnetic atom Co doping induces the absence of the magnetism while the magnetism is realized in phosphorene with substitutional doping of nonmagnetic atoms (O, S, Se, Si, Br, and Cl). The magnetic moment of transition metal (TM)-doped systems is suppressed in the range of 1.0-3.97μ*** electronic properties of the doped systems are modulated differently;O, S, Se, Ni, and Ti doped systems become spin semiconductors, while V doping makes the system a half metal. These results demonstrate potential applications of functionalized phosphorene with external atoms, in particular to spintronics and dilute magnetic semiconductors.

关键词： phosphorene spin semiconductots half metals density functional theory

Safety validation of decision trees for hepatocellular carcinoma

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World Journal of Gastroenterology 2015年第31期21卷 9394-9402页

作者： Xian-Qiang Wang Zhe Liu Wen-Ping Lv Ying Luo Guang-Yun Yang Chong-Hui Li xiang-fei meng Yang Liu Ke-Sen Xu Jia-Hong Dong Department of Hepatobiliary Surgery Qilu HospitalShandong University Department of Hepatobiliary Surgery PLA General Hospital

AIM: To evaluate a different decision tree for safe liver resection and verify its ***: A total of 2457 patients underwent hepatic resection between January 2004 and December 2010 at the Chinese PLA General Hospital,and 634 hepatocellular carcinoma(HCC) patients were eligible for the final analyses. Post-hepatectomy liver failure(PHLF) was identified by the association of prothrombin time 50 μmol/L(the "50-50" criteria),which were assessed at day 5 postoperatively or later. The Swiss-Clavien decision tree,Tokyo University-Makuuchi decision tree,and Chinese consensus decision tree were adopted to divide patients into two groups based on those decision trees in sequence,and the PHLF rates were ***: The overall mortality and PHLF rate were 0.16% and 3.0%. A total of 19 patients experienced PHLF. The numbers of patients to whom the SwissClavien,Tokyo University-Makuuchi,and Chinese consensus decision trees were applied were 581,573,and 622,and the PHLF rates were 2.75%,2.62%,and 2.73%,respectively. Significantly more cases satisfied the Chinese consensus decision tree than the Swiss-Clavien decision tree and Tokyo University-Makuuchi decision tree(P < 0.01,P < 0.01); nevertheless,the latter two shared no difference(P = 0.147). The PHLF rate exhibited no significant difference with respect to the three decision ***: The Chinese consensus decision tree expands the indications for hepatic resection for HCC patients and does not increase the PHLF rate compared to the Swiss-Clavien and Tokyo UniversityMakuuchi decision trees. It would be a safe and effective algorithm for hepatectomy in patients with hepatocellular carcinoma.

关键词： Hepatectomy Liver failure Decision tree

A Quenched Study for QCD Phase-Transition on Anisotropic Lattices

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Communications in Theoretical Physics 2009年第10期52卷 665-670页

作者： meng xiang-fei CHEN Ying LIU Yu-Bin School of Physics Nankai University Tianjin 300071 China Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Theoretical Center for Science Facilities Chinese Academy of Sciences Beijing 100049 China

The QCD deconfinement phase transition in pure SU（3） gauge theory is studied on an anlsotropic lattice. The critical temperature is determined to be Tc ≈ 285 MeV. The relation between the deconfinement phase transi... 详细信息

关键词： phase-transition critical temperature anisotropic lattice

Resource utilization of flue gas calcium-based desulfurization ash:a comprehensive review

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Journal of Iron and Steel Research International 2023年第3期30卷 405-418页

作者： Dong-xiang meng Ru-fei Wei fei-hu Zhang Hong-ming Long Yuan-yuan Zhou School of Metallurgical Engineering Anhui University of TechnologyMa’anshan 243032AnhuiChina Key Laboratory of Metallurgical Emission Reduction and Resources Recycling Ministry of EducationAnhui University of TechnologyMa’anshan 243032China Industrial Development Research Center China Metallurgical Industry Planning and Research InstituteBeijing 100013China

Calcium-based desulfurization ash(CDA)is mainly produced in dry and semi-dry flue gas desulfurization *** property of CDA is extremely unstable because its main component,calcium sulfite,makes it difficult to be directly applied to the field of building *** modification of desulfurization ash can be realized by high-temperature oxidation and wet *** modification,CDA can be widely used in building *** oxidation has broad development prospects because it can complete the oxidation of CDA and the removal of impurity elements at the same *** can be used to prepare high value-added products of calcium sulfate whiskers and ecological rubber fillers.

关键词： Calcium-based desulfurization ash Oxidation modification Building material Calcium sulfate whisker Flue gas desulfurization

The Relation between the Critical Accretion Rate of Progenitors of SNe Ia and Metallicity

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Chinese Journal of Astronomy and Astrophysics 2006年第4期6卷 461-469页

作者： xiang-Cun meng Xue-fei Chen Christopher A. Tout Zhan-Wen Han National Astronomical Observatories / Yunnan Observatory Chinese Academy of Sciences Kunming 650011 Graduate School of Chinese Academy of Sciences Beijing 100049 Institute of Astronomy The Observatories Madingley Road Cambridge CB3 0HA England Centre for Stellar and Planetary Astrophysics School of Mathematics Monash University Clayton Victoria 3800 Australia

A carbon-oxygen white dwarf may *** a Type Ia supernova by accreting matter from its companion via either Roche lobe overflow or from winds, but there exists a critical accretion rate of the progenitor system for the explosion. We study the relation between the critical accretion rate and the metallicity via an AGB star approach. The result indicates that the critical accretion rate depends not only on the hydrogen mass fraction and the white dwarf mass, but also on the metallicity. The effect of the metallicity is smaller than that of the white dwarf mass. We show that it is reasonable to use the model with stellar mass 1.6 M⊙ for real white dwarfs.

关键词： stars: evolution -- star: AGB -- star: supernova: general

Analysis of wave clipping effects of plain reservoir artificial islands based on MIKE21 SW model

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Water Science and Engineering 2019年第3期12卷 179-187页

作者： Yan xiang Zhi-min Fu Ying meng Kai Zhang Zheng-fei Cheng Dam Safety Management Center of Ministry of Water Resources Nanjing Hydraulic Research Institute Nanjing 210029 China State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Nanjing Hydraulic Research Institute Nanjing 210029 China Key Laboratory of Failure Mechanism and Safety Control Techniques of Earth-Rock Dam Ministry of Water Resources Nanjing Hydraulic Research Institute Nanjing 210029 China College of Hydrology and Water Resources Hohai University Nanjing 210098 China

Plain reservoirs are shallow, and have low dams and widespread water ***, wind-wave-induced damage to the dam is one of the important factors affecting the safety of the *** improve upon unsatisfactory plain reservoir wave-clipping schemes, a numerical method is proposed to predict and analyze waves in the reservoir in the presence of artificial islands, constructed from dredged *** MIKE21 SW model is applied to a specific plain reservoir for finding the optimal artificial island *** simulated wave height attenuation results are seen to agree well with empirically predicted ***, the validity and reliability of the numerical model are *** islands at suitable locations in the reservoir can attenuate the wave heights by approximately 10%e30%, which justifies the efficacy of the clipping scheme making use of dredging and island construction.

关键词： Plain reservoirs Sediment deposition Clipping via island construction MIKE21 SW Numerical simulation

Color excesses of type Ia supernovae from the single-degenerate channel model

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Research in Astronomy and Astrophysics 2009年第11期9卷 1259-1269页

作者： xiang-Cun meng Xue-fei Chen Zhan-Wen Han Wu-Ming Yang School of Physics and Chemistry Henan Polytechnic University Jiaozuo 454000 China National Astronomical Observatories/Yunnan Observatory Chinese Academy of Sciences Kunming650011 China

The single degenerate model is the most widely accepted progenitor model of type Ia supernovae （SNe Ia）, in which a carbon-oxygen white dwarf （CO WD） accretes hydrogen-rich material from a main sequence or a slightly evolved star （WD＋MS） to increase its mass, and explodes when its mass approaches the Chandrasekhar mass limit. During the mass transfer phase between the two components, an optically thick wind may occur and the material lost as wind may exist as circumstellar material （CSM）. Searching for the CSM around a progenitor star is helpful for discriminating different progenitor models of SNe Ia. In addition, the CSM is a source of color excess. The purpose of this paper is to study the color excess produced from the single-degenerate progenitor model with an optically thick wind, and reproduce the distribution of color excesses of SNe Ia. meng et al. systemically carded out binary evolution calculations of the WD ＋MS systems for various metallicities and showed the parameters of the systems before Roche lobe overflow and at the moment of supernova explosion in meng ＆ Yang. With the results of meng et al., we calculate the color excesses of SNe Ia at maximum light via a simple analytic method. We reproduce the distribution of color excesses of SNe Ia by our binary population synthesis approach if the velocity of the optically thick wind is taken to be an order of magnitude of 10km s^-1. However, if the wind velocity is larger than 100km s^-1, the reproduction is bad.

关键词： stars white dwarfs -- stars supernova general