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Twin pregnancy with sudden heart failure and pulmonary hypertension after atrial septal defect repair: A case report

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World Journal of Clinical Cases 2023年第35期11卷 8350-8356页

作者： chun-Xiao tong Tao Meng Department of Obstetrical First Affiliated Hospital of China Medical UniversityShenyang 110000Liaoning ProvinceChina

BACKGROUND Pulmonary arterial hypertension(PAH)in pregnancy is one of the major obstetric complications and is considered a contraindication to pregnancy as it is classified as a class IV risk in the revised risk classification of pregnancy by the World Health ***,with its adaptive and expectant mechanical and hormonal changes,negatively affects the cardiopulmonary circulation in pregnant *** patients with repaired simple congenital heart disease(CHD)develop other pulmonary and cardiac complications during pregnancy?Can pregnant women with sudden pulmonary hypertension be treated and managed in time?In this paper,we present a case of a 39-year-old woman who underwent cesarean section at 33 wk'gestation and developed PAH secondary to repaired simple *** research began by a PubMed search for"pulmonary hypertension"and"pregnancy"and"CHD"case *** cases were selected to review PAH in pregnancy after correction of CHD *** studies were reviewed,coupled with our own clinical *** SUMMARY Herein,a case involving a woman who underwent atrial septal defect repair at the age of 34,became pregnant five years later,and had a sudden onset of PAH and right heart failure secondary to symptoms of acute peripheral edema in the third trimester of her *** a result,the patient underwent a cesarean section and gave birth to healthy *** three days after cesarean delivery,her cardiac function deteriorated as the pulmonary artery pressure ***-tive postpartum management,including diuresis,significant oxygen uptake,vasodilators,capacity and anticoagulants management,led to improvements in cardiac function and *** patient was discharged from hospital with a stable recovery and transferred to local hospitals for further PAH *** This case served as a reminder to obstetricians of the importance of pregnancy after repair of *** is crucial for patients with CHD to receive early co

关键词： Congenital heart defects Pulmonary hypertension Right heart failure Twin pregnancy Perioperative management Case report

Recent advances in age-related metabolic dysfunction-associated steatotic liver disease

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World Journal of Gastroenterology 2024年第7期30卷 652-662页

作者： Qian-Jun He Yi-Fei Li Ling-tong Zhao chun-tong Lin chun-Yan Yu Dan Wang College of Basic Medicine Beihua UniversityJilin 132013Jilin ProvinceChina Department of Traumatic Surgery Jilin Central HospitalJilin 132001Jilin ProvinceChina

Metabolic dysfunction-associated steatotic liver disease(MASLD)affects approximately 25%of the world's population and has become a leading cause of chronic liver *** recent years,an increasing amount of data suggests that MASLD is associated with *** the population ages,age-related MASLD will become a major global health *** an aging will become a new approach to the treatment of *** paper reviews the current studies on the role of aging-related factors and therapeutic targets in MASLD,including:Oxidative stress,autophagy,mitochondrial homeostasis,bile acid metabolism homeostasis,and *** aim is to identify effective therapeutic targets for age-related MASLD and its progression.

关键词： Metabolic dysfunction-associated steatotic liver disease Aging Mitochondrial homeostasis Bile acid homeostasis Dysbiosis

Fabrication of Superhydrophobic Aluminum Plate by Surface Etching and Fluorosilane Modification

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Chemical Research in Chinese Universities 2012年第5期28卷 903-906页

作者： YIN Shi-heng ZHU Bin LIU Yun-chun YANG Ji KUANG tong-chun Analytical&Testing Center South China University of TechnologyGuangzhou 510640P.R.China College of Materials Science and Engineering South China University of TechnologyGuangzhou 510640P.R.China

Superhydrophobic aluminum surfaces with a high water contact angle and low sliding angle on aluminum plate substrate were fabricated by means of surface etching with sodium hydroxide under ultrasonic bathing and then modification with fluorosilane. Scanning electron microscopy（SEM） showed a honeycomb-like structure on aluminum substrate surface after etching under ultrasonic bathing. And the surface was rendered from superhydrophilicity to superhydrophobicity after further modification with fluorosilane.

关键词： Superhydrophobicity Aluminum Surface etching Fluorosilane

Tensile reliability analysis for gravity dam foundation surface based on FEM and response surface method

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Water Science and Engineering 2010年第2期3卷 233-240页

作者： tong-chun LI Dan-dan LI Zhi-qiang WANG College of Water Conservancy and Hydropower Engineering Hohai University Nanjing 210098 P. R. China

In this study, the limit state equation for tensile reliability analysis of the foundation surface of a gravity dam was established. The possible crack length was set as the action effect and allowable crack length was set as the resistance in the limit state. The nonlinear FEM was used to obtain the crack length of the foundation surface of the gravity dam, and the linear response surface method based on the orthogonal test design method was used to calculate the reliability, providing a reasonable and simple method for calculating the reliability of the serviceability limit state. The Longtan RCC gravity dam was chosen as an example. An orthogonal test, including eleven factors and two levels, was conducted, and the tensile reliability was calculated. The analysis shows that this method is reasonable.

关键词： tensile reliability foundation surface of gravity dam nonlinear FEM," response surface method," Longtan RCC gravity dam

Activity of the Fungicide JS399-19 Against Fusarium Head Blight of Wheat and the Risk of Resistance

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Agricultural Sciences in China 2011年第12期10卷 1906-1913页

作者： CHEN Yu WANG Wen-xiang ZHANG Ai-fang GU chun-yan ZHOU Ming-guo GAO tong-chun Institute of Plant Protection Anhui Academy of Agricultural Sciences Hefei 230031 P.R.China College of Plant Protection Nanjing Agricultural University Nanjing 210095 P.R.China

This report reviews the characteristics of JS399-19, a novel cyanoacrylate fungicide. JS399-19 strongly inhibits the mycelial growth of the fungal plant pathogens of the genus Fusarium and exhibits great potential in controlling Fusarium head blight （FHB） on wheat and other cereals. The mode of action of JS399-19 is evidently different from that of benzimidazole （for example, carbendazim） and other sort of fungicides, making it a possible replacement for carbendazim in China to manage carbendazim-resistant subpopulations of Fusarium graminearum and F. asiaticum. JS399-t9 has excellent protective and curative activity against these pathogens. Incorrect use of this fungicide, however, is likely to select for resistance. Among JS399-19-resistant mutants of F. asiaticum induced in the laboratory, the resistant level of mutants was high and the phenotype of resistance against JS399-19 was conferred by a major gene by genetic analysis. The fitness of laboratory-induced JS399-19-resistant mutants of F. asiaticum was nearly equal to that of their parents. JS399-19 lacks cross resistance with other sort fungicides. To control FHB with JS399-19 and to delay the development of the fungicide-resistance, farmers should use tank mixtures containing JS399-19 and carbendazim, metconazole, tebuconazole, or prothioconazole.

关键词： fungicide JS399-19 cyanoacrylate fungicide Fusarium head blight activity resistance risk

Effects of deposit timeon combustion flame deposition of carbon coatings on the Surface of Cemented Carbide

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Effects of deposit timeon combustion flame deposition of car...

Transcriptomic analysis reveals the regulation network of BmKruppel homolog 1 in the oocyte development of Bombyx mori

第八届中国功能材料及其应用学术会议

作者： TANG De-wen KUANG tong-chun ZHAO Rui-lan School of Mechanical Engineering University of South china South china university of technology

ISBN: (纸本)9783037859698

At present,most of the researchesoncarbide surface modificationare focused on the method of chemical vapor deposition and physical vapor deposition in order to enhance its wear resistance and surface *** this paper,CH and O of flame are used to deposit carbon coatings on YG 16 cemented carbide *** influence of deposition timehave been investigatedwith the method of XRD,*** coatings structure,quality and Cross sectional microstructures of carbon coating was *** experimental result show that after different deposition time,the typical spherical diamond\nanometer carbon tube and diamond-graphite-no crystal carbon coatings have been formed on the surface of cemented carbide.

关键词： Diamond Carbon nanotubes flame cemented carbide Deposit time

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Insect Science 2021年第1期28卷 47-62页

作者： Zi-Dan Zhu Qi-Hao Hu chun-Mei tong Hong-Guang Yang Si-chun Zheng Qi-Li Feng Hui-Min Deng Guangdong Key Laboratory of Insect Developmental Biology and Applied Technology Guangzhou Key Laboratory of Insect Development Regulation and Application ResearchInstitute of Insect Science and Technology&School of Life SciencesSouth China Normal UniversityGuangzhouChina

Kriippel homolog 1(Kr-hl),a zinc finger transcription factor,is involved in the metamorphosis and adult reproduction of ***,the role of Kr-hl in reproduction of holometabolic insects remains to be *** regulation network of 7-associated genes in the reproduction in Bombyx mori was investigated in this *** higher expression level of BmKr-hl in the ovaries was detected during the late pupal stage and *** interference(RNAi)-mediated depletion of BmKr-hl in the female at day 6 of pupae resulted in abnormal oocytes at 48 h post-double-stranded RNA treatment,which showed less yolk protein deposition and partially transparent ***-seq and subsequent differentially expressed transcripts analysis showed that knockdown of BmKr-hl caused a decrease in the expression of 2882 genes and an increase in the expression of 2565 genes in the oocytes at day 8 of ***,27 genes coding for transcription factors were down-regulated,while six genes coding for other transcription factors were ***-hl bound to the Kr-hl binding site of the transcription factors AP-1(activating protein-1)and FOXG1 to increase their messenger RNA tran・scripts in the BmN cells,*** Ontology enrichment and Kyoto Encyclopedia of Genes and Genomes pathway analyses of that positively co-expressed with AP-1 and FOXG1 transcripts showed mainly enrichment in the metabolic-related pathways,the nu・tri ent absorption and the yolk protein absorption *** data suggested that BmKr-h 1 might directly regulate the metabolic-related pathways,the nutrient absorption and the yolk protein absorption processes or probably through AP-1 and/or FOXG1 to regulate oocyte development.

关键词： Kriippel homolog 1 oocyte development regulatory network RNA interference transcriptomics

FRACTIONAL-STEP FINITE ELEMENT METHOD FOR CALCULATION OF 3-D FREE SURFACE PROBLEM USING LEVEL SET METHOD

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Journal of Hydrodynamics 2006年第6期18卷 742-747页

作者： ZHAO Lan-hao LI tong-chun WANG Ling HERREROS M. I. PASTOR M. College of Water Conservancy and Hydropower Engineering Hohai University Naniing 210098 China Anhui Survey and Design Institute of Water Conservancy and Hydropower Hefei 230022 China CEDEX and E.T.S. de Caminos Madrid Spain

A two-step Taylor-Galerkin fractional-step finite element method, which is of second order accuracy in space and time, was proposed for the three-dimensional free surface problem. With this method, the intermediate velocity was explicitly obtained by neglecting pressure gradient term, and then the velocity was corrected by adding the effects of pressure once the pressure field had been obtained from the pressure Poisson equation. The level set approach was applied to track implicitly the free surface. In order to track the free surface, the transport equation of the level set function was solved at each time step and the level set function is reinitialized through iteration to maintain it as a distance function. The governing equations of the system were discretized by the two- step Taylor-Galerkin method, which is of high-order accuracy and easy to be used. The validity and reliability of this method in this article were proved by two numerical examples.

关键词： level set free surface two steps Taylor-Galerkin fractional step FEM

Co,K-Supported Hexagonal Mesoporous Silicas for Catalytic Oxidation of 4-t-Butyltoluene

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Chemical Research in Chinese Universities 2010年第4期26卷 622-625页

作者： YU Wei-hua ZHOU chun-hui tong Dong-shen FANG Mei ZHANG Bo Research Group for Advanced Materials ＆ Sustainable Catalysis（AMSC） College of Chemical Engineering and Materials Science Zhejiang University of Technology Hangzhou 310014 P R. China

Co,K-Supported hexagonal mesoporous silicas（HMS） have been prepared by incipient wetness impregnation with cobalt acetate tetrahydrate and potassium acetate as metal precursors, and ethylene glycol as impregnation solvent. The products have been characterized via powder X-ray diffraction, N2 adsorption-desorption isotherms and diffuse reflectance UV-Vis spectroscopy. The divalent cobalt with a tetrahedral oxygen coordination exists mainly in the calcined samples. The catalytic properties have been tested for the oxidation of 4-t-butyltoluene with dioxygen in liquid phase at mild conditions. The products offered good catalytic activities in the oxidation reactions. Co-K-HMS catalyst with loading 4% Co and 2% K（mass fraction） affords a higher yield（22.4%） of 4-t-butylbenzaldehyde at a conversion of 28.3% under the reaction conditions. Adding a proper amount of potassium in Co-HMS results in an improvement catalytic activity and stability.

关键词： Mesoporous silica Catalyst Cobalt Potassium Oxidation