Table of Content

    25 November 2022, Volume 43 Issue 6
    Mathematics
    Proof of Gracefulness of Crowns of Two Kinds of Graceful Graphs
    TANG Baoxiang, REN Han
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  1-5. 
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    This paper uses the construction method to give the graceful labels of the crowns I(Tn) and I(1-∧C4,n) of the graceful graphs Tn and 1-∧C4,n,thus proving that both I(Tn) and I(1-∧C4,n) are graceful graphs.
    Method for Solving the Abel Integral Equation of the Downline Problem
    XING Jiasheng
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  6-10. 
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    For the solution of the downline problem with a given descent time function,the problem is transformed into an Abel integral equation solution problem.For the integral equation on infinite interval,this paper introduces Abel's method and the process of solving integral equation with Laplace transformation,and gives the solution formula.For the limited range of integral equation,this paper uses the Abel integral transformation method to solve the integral equation,uses the iterated integral to exchange integral sequence,and obtains the solution formula from a definite integral identity.The solution formula of the integral equation is applied to the isochronous curve problem.The isochron is proved be an inverted cycloid with the solution of  the differential equation of the isochronous curve problem.
    Characterizationon Function Rearrangement Class and Its Application in  Steady Vortices
    JIANG Yi
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  11-13. 
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    For  characterization of rearrangement class of a given function,a simple characterization of the rearrangement class weak closure of the characteristic functions is provided.At the same time,in ideal fluids,another derivation method on the configurations of steady vortices is given.
    Computer
    Application of Mirror ELM Based on Bio-Inspired Algorithm Optimization
    YIN Yumin, LIAO Bolin
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  14-19. 
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    This study proposes a method to determine the weights of an improved ELM.The weight determination process of this method and the traditional ELM weight determination process mirror each other,so it is termed Mirror ELM (MELM).At the same time,a novel bio-inspired algorithm named Beetle Antennae Search (BAS) is used to optimize the selection of neural network weights and is applied in pattern classification.Experimental results show that the proposed BAS-MELM has more simple neural network structure and superior generalization performance in terms of pattern classification.
    Improved of Source Code Plagiarism Detection Based on Abstract Syntax Tree
    LIU Feixiang, LONG Dongdong, OU Xingru, CHEN Changfeng
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  20-25. 
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    For low detection accuracy and inability to detect plagiarism at the semantic level in the traditional abstract syntax tree based code plagiarism detection methods,an improved code plagiarism detection approach based on abstract syntax tree is designed.This approach achieves higher plagiarism detection rate through TF-IDF weighted simplified syntax tree.Moreover,feature extraction and similarity calculation methods based on weighted simplified abstract syntax tree are designed to realize partial detection of semantic plagiarism.Experimental results show that the proposed approach can effectively detect semantic level plagiarism and achieves higher accuracy than traditional tree-based methods.
    Design and Optimization of Permission Control System with Distributed Architecture
    LEI Yunxiang, JIANG Qihai, TIAN Jie, DUAN Mingxiu
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  26-31. 
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    Aiming at the low performance and difficult maintenance of traditional permission control system,a new distributed permission management system based on JSON Web Token(JWT) technology is designed and implemented.The system adopts the mode of "centralized authentication and decentralized identification",which improves the overall performance and efficiency of the system.
    Construction
    Mechanical Properties of Cross-Sections of High-Pier Bridges in Complex Working Conditions
    WANG Jianxing, ZHANG Zhaowei, LIU Ge, ZHANG Ziheng, YU Zhihan
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  32-37. 
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    Based on the actual project of Luohe Bridge,the Midas Civil software was used to establish a model of the high-pier bridge under the design load,and the mechanical properties of the two types of cross-sectional high-pier continuous steel-concrete frame bridge were analyzed under different load combinations.in working conditions 1 and 3,the bearing capacity of type A cross-section is higher than that of type B structure,and the maximum axial stress is reduced by 28.54% and 27.88% respectively.In working condition 3,the maximum deflections of A-type and B-type high pier bridges are 3.953 mm and 3.643 mm respectively.The deflection of an A-type bridge is 7.84% lower than that of a B-type bridge.The structural stiffness of A-type high pier bridge is improved and the structural deformation is reduced.In all kinds of working conditions,the stress of a high pier bridge meets the strength requirements.
    Resources and Environment
    Comprehensive Evaluation and Spatial Distribution Characteristics of Soil Fertility in Xiangxi Prefecture
    PENG Huan, ZHOU Ying, ZENG Hanyong, LUO Jin, LI Qiang, HE Jianwu
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  38-44. 
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    The comprehensive evaluation of soil fertility in Xiangxi autonomous Prefecture provides a basis for improving soil fertility and building high-quality farmland.Soil pH,organic matter,total nitrogen,available phosphorus,and available potassium were selected as evaluation indicators,combined with the index summation method,a comprehensive evaluation system of soil fertility is constructed,and the soil fertility is comprehensively evaluated.The results showed that the soil pH in Xiangxi Prefecture is acid,there is slight soil acidification,the content of organic matter is high,the content of total nitrogen is moderate,the content of available phosphorus and available potassium vary greatly,and the average content was high.The proportion of soil area with grade I,II,III and IV fertility in Xiangxi Prefecture was 17.66%,17.62%,8.21% and 56.51% respectively.
    Economics
    Investment Interval Problem of Multi-Enterprise Separation
    ZHANG Jing, ZHANG Yong
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  45-50. 
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    From the perspective of information asymmetry,we constructe a multi-enterprise real option signaling model.Numerical simulation analysis shows that:there is an investment critical value interval in which good enterprises can be separated from poor enterprises and medium-sized enterprises at the same time.The value of interval width is positively correlated with the growth potential of good enterprises,volatility and the total operating cost.The interval boundary value is  negatively correlated with the growth potential of good enterprises,and is  positively correlated with volatility and total operating costs.The increase in the types of enterprises in the market will lead to the early investment time of good enterprises.The results show that in the multi-enterprise market,the investment time of two enterprises will not  transmit the signal of enterprise type,and it will be more difficult for multi-enterprises to achieve separation equilibrium,which makes it more difficult to identify enterprises quality.
    Fuzzy Stochastic Pricing Model for Credit Asset-Backed Securities
    ZHANG Jinlun, ZHANG Yong
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  51-57. 
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    Based on the characteristics of the loan prepayment behavior,the pricing model of credit asset-backed securities in the fuzzy random environment is constructed by taking the price as a fuzzy random variable.Through algorithm analysis,the method of calculating the membership degree of credit asset-backed securities with known price is given,and the practicability of pricing model is verified through numerical examples and static analysis.The results show that the pricing model in the fuzzy stochastic environment is the general form of the traditional pricing model.
    Statistical Measurement of the Inadequate Development
    LIU Fanfan
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  58-66. 
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    An index evaluation system including development quality and benefit, innovation ability, environmental protection and people's livelihood is constructed.In 2008-2018, China's development inadequacy decreased at an average annual rate of 2%, of which environmental protection contributed the most; however, the regional imbalance of the development inadequacy is growing. To improve the quality, efficiency and innovation ability of the development of the western region is the key to improve the inadequacy of development in China.
    Medical
    Effect of Nimotuzumab Combined with GP Chemotherapy in the Treatment of Metastatic Nasopharyngeal Carcinoma
    CHEN Jia, XIANG Zhibi, XIONG Li, DUAN Hexin, LIU Rong, YANG Zhi, WU Hui, YANG Zaichuan
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  67-74. 
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    The efficacy and adverse reactions of nituzumab combined with GP chemotherapy in the treatment of metastatic nasopharyngeal carcinoma has been analyzed.Patients diagnosed by the pathology and the imaging of advanced metastatic nasopharyngeal carcinoma from June 1,2019 to December 31,2020 in Xiangxi Autonomous Prefecture People's Hospital,and were randomly divided into experimental group (GP + Nimotuzumab)and control group (GP) .The effective rate,disease control rate,progression-free survival,overall survival and adverse reactions of the two groups were compared and analyzed.A total of 28 patients were included in this study,including 14 in the experimental group and 14 in the control group.In the experimental group there were 1 case of CR,10 cases of PR,2 cases of SD,and 1 case of PD;and in the control group,ORR of the experimental group and control group was 78.5% vs 50.0%(P=0.115),and DCR 92.8% vs 85.7%(P=0.541).The median DOR was 7 months in the experimental group and 5 in the control group (P=0.068).The median PFS of the experimental group and the control group were 11 months and 7 months (P=0.043).The median OS was 19 months in experimental group and 13 months in control group (P=0.043) .The main adverse reactions in both groups were myelosuppression,gastrointestinal reactions and hepatic injury.Degrees of myelosuppression occurred in 11 patients in the experimental group and in 12 in the control group (P=0.662).The rates of grade 1~2 myelosuppression in the two groups were 50.00% vs 25.00% (P=0.115),while 3~4 grade in the two groups were (33.33% vs 64.28%,P=0.058).Grade 1~2 gastrointestinal reactions occurred in both groups 35.71% vs 50.00% (P=0.445).The incidence of grade 1~2 hepatic injury was (21.43% vs 7.14%,P=0.280),and that of grade 3~4 hepatic injury was the same (7.14%) .Compared with GP alone,GP +Nimotuzumab did not improve the short-term efficacy in the treatment of advanced metastatic nasopharyngeal carcinoma,but prolonged the PFS time,improved the overall survival,and did not increase the adverse reactions.
    Application and Effectiveness Evaluation of Air Enema Reduction in the Treatment of Intussusception in Children
    MA Chuncan, LUO Yong
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  75-79. 
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    This paper is to discuss the clinical effect and therapeutic effectiveness of air enema reduction in the treatment of intussusception in children.86 children with intussusception admitted to our hospital from January 2021 to January 2022 were randomly divided into control group and study group,with 43 cases in each group.The control group was treated by hydraulic enema,and the study group was treated by air enema.The success rate of reduction,reduction time,hospitalization and recovery time of blood in stool,interleukin-6 and tumor necrosis factor- α  before and after treatment were compared between the two groups.There was no significant difference in the reduction success rate between the study group and the control group (P>0.05).The reduction time,hospitalization time and recovery time of stool blood in the study group were significantly lower than those in the control group (P<0.05).Before treatment,the interleukin-6 and tumor necrosis factor-α (hereinafter,TNF) before treatment in the two groups-α were not significantly different (P>0.05).After treatment,the level of interleukin-6 and TNF-α in the study group were significantly lower than that of the control group (P<0.05).The incidence of complications in the study group was 4.65%,significantly lower than 20.93% in the control group (P<0.05).
    Logic,Dilemma and Path of Media Integration Development of Medical Journals
    GUO Xiaoya
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  80-86. 
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    Media integration has become an important means for medical journals to enhance their academic content and influence.In essence,media integration plays an important role in improving the academic capacity of medical journal editors,expanding the dissemination channels of medical journals,and improving the academic influence of medical journals.However,limited by many factors,the media integration of medical journals is still facing difficulties such as low development orientation,insufficient content innovation and shortage of professional personnel,which seriously affects the sustainable development of medical journals.Therefore,it is proposed that medical journals should focus on the new development trend of " Internet + Media ",orientate the development direction of media integration of medical journals with high standards,build the characteristic brand of media integration development of medical journals,and establish a team of medical journal media integration professionals,so as to finally realize the high integration development of medical journals and new media.
    Education and teaching
    Approach to a High-Level,In-Depth,and Affectionate Curriculum of Ideological and Political Education in Foreign Language Teaching for Medical Students
    LIU Rurong, LIU Qijun
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  87-91. 
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    It is the fundamental task of strengthening moral education and cultivating people and also the new commission of institutions of higher education to change from proving ideological and political courses to practicing curriculum of ideological and political education.Universities should cultivate students with good values and moral integrity,giving full play to each course.Due to the special nature of foreign language course and the utilitarian purpose of medical students,a high-level,in-depth,and affectionate curriculum of ideological and political education in foreign language teaching is essential for them.To achieve this,we need to perfect course teaching plan,strengthen teaching staff,and optimize teaching mode.Only by creatively transforming from special personnel to everyone in ideological and ideological education,and virtually integrating explicit education with implicit education,can curriculum ideological and political education be truly implemented.
    Current Situation and Measures of Drum Dance Development of Miao Ethnic Group in Western Hunan Province:Activation and  Inheritance of Intangible Cultural Heritage
    XIA Chenchen
    Journal of Jishou University(Natural Sciences Edition), 2022, 43(6):  92-96. 
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    Drum dance of Miao ethnic group in western Hunan province is a national-level intangible cultural heritage with representative inheritors at the national,provincial,state,county and municipal levels.The project has been well protected,and has been well applied in ethnic and folk cultural and sports activities,school sports,tourism development and foreign cultural exchanges.However,there are still serious problems such as the aging of inheritors,the imperfect inheritance mechanism,and the challenges from modern entertainment.In order to improve the protection and inheritance effect of the drum dance,some measures need to be taken,such as cultivation of inheritors,creating demonstration area of "two innovation",and diversified and coordinated development.
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