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Chemical Research in Chinese Universities 2011年第1期27卷 140-144页

作者： xu xin-yu Department of Polymer Materials and Engineering School of Chemistry and Materials Science Liaoning Shihua University Fushun 113001 P R. China

A side-chain liquid crystalline ionomer（SLCI） was synthesized by grafting copolymerization of 4-（4-ethoxybenzoyloxy）-4＇-allyloxybiphenyl and N-allyl-pyridium bromide on polymethylhydrosiloxane. The SLCI was blended with polypropylene（PP） and polybutylene terephthalate（PBT） by melt mixing. The thermal behavior, liquid crystalline properties, morphological structure, and mechanical properties of the blends were investigated by differential scanning calorimetry（DSC）, polarizing optical microscopy（POM）, scanning electron microscopy（SEM）, and tensile measurement. When a proper amount of SLCI was added, fine configurations were formed in the PBT/PP/SLCI blend system, and the mechanical properties were improved due to improved adhesion at the interface. When excess SLCI was added, an inhomogeneous structure resulted, which caused the mechanical properties to deteriorate.

关键词： Poly(butylent terephthalate) Poly(propylene) Liquid crystalline ionomer Compatibilization

Modification of Interfacial Interaction of PBT/PP Blends by Adding Main-chain Liquid Crystalline Ionomer with Sulfonic Group

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Chemical Research in Chinese Universities 2012年第2期28卷 340-344页

作者： xu xin-yu ZHANG Fan XIE Bing-xi Department of Polymer Materials and Engineering School of Chemistry and Materials ScienceLiaoning Shihua UniversityFushun 113001P.R.China

A main-chain liquid crystalline ionomer（MLCI） containing sulfonic group was synthesized by an interfacial condensation *** MLCI was blended with polybutylene terephthalate（PBT） and polypropylene（PP）.MLCI interacted with both the dispersed（PP） phase and the matrix（PBT） phase to modify the interfacial interaction of PBT and *** scanning calorimetry（DSC）,scanning electron microscopy（SEM） and FTIR imaging system analysis demonstrated the significance of interfacial interaction in the polymer *** brought about good adhesion at the interfacial,which reduced the disperse phase size and enabled a fine PP phase at *** mechanical properties of the ternary blends were improved when a proper amount of MLCI was *** was attributed to enhanced adhesion at the interface,which invoked better mechanical properties in the blends.

关键词： Poly(butylent terephthalat) Polypropylene Main-chain liquid crystalline ionomer Sulfonic group Interfacial interaction

Effects of Aromatherapy on Physical and Mental Health of Cancer Patients Undergoing Radiotherapy and/or Chemotherapy: A Meta-Analysis

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Chinese Journal of Integrative Medicine 2024年第5期30卷 449-457页

作者： XIE Shuang-ran MA Liang xu xin-yu ZHOU Shu XIE Hui-miao XIE Chang-sheng The First Clinical Medical College Zhejiang Chinese Medical UniversityHangzhou 310053China Department of Medical Oncology Hangzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical UniversityHangzhou 310007China Department of Dermatology the Third Xiangya HospitalCentral South UniversityChangsha 410013China Department of Famous Chinese Medicine Clinic the Second Affiliated Hospital of Zhejiang Chinese Medical UniversityHangzhou 310005China Department of Medical Oncology the First Affiliated Hospital of Zhejiang Chinese Medical UniversityHangzhou 310006China

Backgroup:Currently,aromatherapy is being increasingly utilized in clinical practice,particularly in managing the side effects associated with radiotherapy and ***,it remains to be established whether aromatherapy can effectively alleviate these ***:To investigate the effects of aromatherapy on the physical and mental health of patients with cancer undergoing radiotherapy and ***:Seven databases were researched from inception until September 29,2023,including PubMed,Scopus,and Web of Science,Chinese National Knowledge Infrastructure,Wanfang database,China Biology Medicine disc and VIP Chinese Medical Journal *** Manager version 5.3 was utilized for data *** Cochrane Risk of Bias tool RoB2 was employed to evaluate the quality of the literature included in the *** quality rating was assessed using the Grading of Recommendations Assessment,Development,and Evaluation(GRADE) approach through the GRADEpro GDT online ***:Nineteen studies involving 1,541 patients were *** can alleviate nausea [relative risk(RR)=0.64,95% confidence interval(CI):0.53 to 0.78,P<0.05,I^(2)=46%;standardized mean difference(SMD)=-0.86,95% CI:-1.21 to-0.51,P<0.05,I^(2)=64%] and vomiting(RR=0.54,95% CI:0.42 to 0.69,P<0.05,I^(2)=35%;SMD=-1.28,95% CI:-1.52 to-1.03,P<0.05,I^(2)=92%),improve sleep disorders [mean difference(MD)=-3.39,95% CI:-3.95 to-2.84,P<0.05,I^(2)=0%],relieve pain(SMD=-1.58,95% CI:-1.96 to-1.21,P<0.05,I^(2)=0%),mitigate fatigue(SMD=-1.28,95% CI:-2.44 to-0.11,P<0.05,I^(2)=93%) and enhance quality of life(SMD=0.50,95% CI:0.22 to 0.79,P<0.05,I^(2)=0%) in cancer patients after radiotherapy and chemotherapy,but it may not have a significant effect on *** risk of bias was high in the included studies using the Cochrane Risk of Bias tool RoB2,and no studies were considered to be of high grade according to the GRADE ***:Aromatherapy is an efficacious,safe a

关键词： aromatherapy cancer chemoradiotherapy physical psychological

Study on Different Modification Methods of Collagen for Tissue Engineering

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Chinese Journal of Biomedical Engineering(English Edition) 2008年第4期17卷 139-145页

作者： xu xin-yu Department of Biomedical Engineering Tianjin Medical University Tianjin 300070 China

Because of the excellent biocompatibility and its specific amino sequences,collagen is an ideal biomedical material for tissue engineering applications. But collagen is usually lack of mechanical strength to form a rigid 3-D matrix and lack of ability to resist collagenase. In order to be a tissue engineering scaffold,collagen must strengthen its structures by modifying with chemical crosslinkers. Chemical crosslinkers used for modifying collagen fibers include glutaraldehyde(GA),epoxy compounds(PC) and carbodiimides (EDC). The aim of this study is to choose the best chemical crosslinker from the three reagents. In terms of the resistance to collagenase degradation,chemical cross-linking with PC provided the best protection; in terms of the mechanical characterization,chemical cross-linking with GA provided the best;and in terms of the biocompatibility,chemical cross-linking with EDC provided the *** is not a reagent which has all merits for collagen crosslinking,so we should select the crosslinking reagent as the demands of use ask.

关键词： collagen crosslinking tissue engineering

Mold Filling Behavior of Melts with Different Viscosity under Centrifugal Force Field

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Journal of Materials Science & Technology 2002年第2期18卷 148-151页

作者： Daming xu, Qingmei yu, xin LI and Geying ANSchool of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China [ Manuscript received October 12, 2001, in revised form December 10, 2001] Sch. of Mat. Sci. and Eng. Harbin Inst. of Technol. Harbin 150001 China

Recently proposed mathematical model for mold filling processes under centrifugal force field conditions and the computer codes were first tested through the sample simulation of gravity mold filling process for a benchmark plate-casting, which were compared with quoted experimental observations. The model and the developed computer program were then applied to the numerical simulation of centrifugal field mold filling processes for a thin-section casting with a titanium alloy melt of assumed viscosity of 1.2 and 12.0 mm2/s, respectively. The computation result comparison shows that the flow behaviors of the filling melts are basically similar to each other although the less viscous melt tends to fill into the thin section casting cavity faster.

关键词： Centrifugal casting Mold filling Viscosity Numerical simulation

Influence of blood glucose on the expression of glucose transporter proteins 1 and 3 in the brain of diabetic rats

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Chinese Medical Journal 2007年第19期120卷 1704-1709页

作者： HOU Wei-kai XIAN yu-xin ZHANG Li LAI Hong HOU xin-guo xu yu-xin yu Ting xu Fu-yu FU Chun-li ZHANG Wen-wen CHEN Li Department of Endocrinology Qilu Hospital of Shandong University Jinan 250012 China Department of Infectious Diseases Affiliated Hospital of Qingdao University Medical School Qingdao 266003 China Department of Pathology Shandong University Medical School Jinan 250013 China

Background The delivery of glucose from the blood to the brain involves its passage across the endothelial cells of the blood-brain barrier （BBB）, which is mediated by the facilitative glucose transporter protein 1 （GLUT1）, end then across the neural cell membranes, which is mediated by GLUT3. This study aimed to evaluate the dynamic influence of hyperglycemia on the expression of these GLUTs by measuring their expression in the brain at different blood glucose levels in e rat model of diabetes. This might help to determine the proper blood glucose threshold level in the treatment of diabetic apoplexy. Methods Diabetes mellitus was induced with streptozotocin （STZ） in 30 rats. The rats were randomly divided into 3 groups： diabetic group without blood glucose control （group DM1）, diabetic rats treated with low dose insulin （group DM2） end diabetic rats treated with high dose insulin （group DM3）. The mRNA end protein levels of GLUT1 end GLUT3 were essayed by reverse trenscriptese-polymerese chain reaction （RT-PCR） end immunohistochemistry, respectively. Results Compared with normal control rats, the G/UT1 mRNA was reduced by 46.08%, 29.80%, 19.22% （P〈0.01） in DM1, DM2, end DM3 group, respectively; end the GLUT3 mRNA was reduced by 75.00%, 46.75%, end 17.89% （P〈0.01） in DM1, DM2, end DM3 group, respectively. The abundance of GLUT1 end GLUT3 proteins had negative correlation with the blood glucose level （P〈0.01）. The density of microvessels in the brain of diabetic rats did not change significantly compared with normal rats. Conclusions Chronic hyperglycemia downreguletes G/UT1 end GLUT3 expression at both mRNA end protein levels in the rat brain, which is not due to the decrease of the density of microvessels. The downreguletion of G/UT1 end GLUT3 expression might be the adaptive reaction of the body to prevent excessive glucose entering the cell that may lead to cell damage.

关键词： diabetes mellitus glucose transporter protein blood glucose brain transcription regulation

New insights in pre-replication complex formation with single-molecule visualization

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Science Bulletin 2015年第12期60卷 1133-1135,I0003页

作者： Huijun xue xin xu yu V. Fu State Key Laboratory of Microbial Resources Institute of Microbiology Chinese Academy of Sciences Beijing 100101China

Precise genomic DNA replication is critical for faithful transferring of genetic information to the next *** DNA replication consists of three different stages:initiation,elongation and *** eukaryotic cells,DNA replic... 详细信息

关键词： DNA复制可视化单分子复合物细胞周期遗传信息真核细胞基因组

A Discussion on the Phenomenon of Non-Dependency of Community Facilities and Its Planning Countermeasures

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China City Planning Review 2011年第1期20卷 41-48页

作者： xu xin,yu Wenbo,YANG yuren

The dependency of community facilities is a concept in contrast to concentration and *** is not only a primary principle for the operation of community facilities,but also an important manifestation of the humanistic and social values of a *** this paper,the authors outline the phenomenon of non-dependency of community facilities in China,analyze its possible causes,and then put forward the primary principles for the construction of dependent community facilities,as well as the supply modes and planning countermeasures.

关键词： community facilities sociality community participa

侧链型液晶聚合物接枝碳纳米管的制备及性能研究

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东北大学学报（自然科学版） 2015年第8期36卷 1146-1149,1169页

作者：徐新宇翟玉春东北大学材料与冶金学院辽宁沈阳110819

合成了一种侧链型液晶单体4-(4’-烯丙氧基)苯甲酰氧基联苯单酯,将不同含量的CNT接枝到侧链液晶单体上,然后液晶单体发生聚合反应生成液晶复合材料.采用偏光显微镜(POM)、扫描电子显微镜(SEM)、差示扫描量热仪(DSC)等考察了碳纳米管的... 详细信息

合成了一种侧链型液晶单体4-(4’-烯丙氧基)苯甲酰氧基联苯单酯,将不同含量的CNT接枝到侧链液晶单体上,然后液晶单体发生聚合反应生成液晶复合材料.采用偏光显微镜(POM)、扫描电子显微镜(SEM)、差示扫描量热仪(DSC)等考察了碳纳米管的分散排列情况以及复合材料的热性能,测试结果显示,少量的碳纳米管能够较好地分散在复合材料基体中;DSC结果显示,CNT的引入提高了复合材料的清亮点,增加了液晶区间.

关键词：复合材料向列相液晶聚合物碳纳米管接枝

In vitro Screening of Ginkgolic Acids for Antiparasitic Activity against Cryptosporidium andersoni

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Biomedical and Environmental Sciences 2019年第4期32卷 300-303页

作者： Chidiebere E.UGWU JIANG Yan Yan WU Liang xu yu xin YIN Jian Hai DUAN Li Ping CHEN Sheng Xia LIU Hua PAN Wei QUAN Hong SHEN yu Juan CAO Jian Ping National Institute of Parasitic Diseases Chinese Center for Disease Control and Prevention Key Laboratory of Parasite and Vector Biology MOH National Center for International Research on Tropical Diseases WHO Collaborating Center for Tropical Diseases Nnamdi Azikiwe University Jiangsu University

Cryptosporidium is a protozoan parasite belonging to the phylum Apicomplexa that causes self-limiting diarrhea in immunocompetent individuals, and it may also cause chronic and life-threatening diarrhea in those that are immunocompromised[1]. The two main routes of Cryptosporidium transmission are via water and food. At least 30 Cryptosporidium species have been confirmed, including C. andersoni, with more than 70 genotypes of undefined species.

关键词： Ginkgolic Acids Antiparasitic