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Self-aggregating behavior of poly(4-vinyl pyridine)and the potential in mitigating sand production based onπ-πstacking interaction

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Petroleum Science 2022年第5期19卷 2165-2174页

作者： Jian-Da li Gui-Cai Zhang Ji-Jiang Ge wen-li qiao Hong li Ping Jiang Hai-Hua Pei School of Petroleum Engineering China University of Petroleum(East China)Qingdao266580ShandongPR China College of Pharmacy Shandong University of Traditional Chinese MedicineJinan250000ShandongPR China

Unconsolidated sandstone reservoirs are most susceptible to sand production that leads to a dramatic oil production *** this study,the poly(4-vinyl pyridine)(P_(4)VP)incorporated with self-aggregating behavior was proposed for sand migration *** P_(4)VP could aggregate sand grains spontaneously throughπ-πstacking interactions to withstand the drag forces *** influential factors on the self-aggregating behavior of the P_(4)VP were evaluated by adhesion force *** adsorption as well as desorption behavior of P_(4)VP on sand grains was characterized by scanning electron microscopy and adhesion force test at different pH *** result indicated that the pH altered the forms of surface silanol groups on sand grains,which in turn affected the adsorption process of P_(4)*** spontaneous dimerization of P_(4)VP molecules resulting from theπ-πstacking interaction was demonstrated by reduced density gradient analysis,which contributed to the self-aggregating behavior and the thermally reversible characteristic of the P_(4)*** sand stabilization test revealed that the P_(4)VP showed wide pH and temperature ranges of *** production of sands can be mitigated effectively at 20-130℃ within the pH range of 4-8.

关键词： Self-aggregating Poly(4-vinyl pyridine) π-πstacking Sand migration control

Novel Receptor for the Rapid Reaction and Colorimetric Detection of HSO3- in Aqueous Solutions

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Chemical Research in Chinese Universities 2013年第2期29卷 236-238页

作者： YANG wen-long li qiao WEI Tai-bao ZHANG You-ming liN Qi SHI Bing-bing ZHANG Peng Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education of China" Key Laboratory ofPolymer Materials of Gansu Province College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070 P. R. China

A novel high-yield Schiff base was designed and synthesized as an anion receptor that specifically select HSO3 anions in aqueous solutions of H20/DMSO（15：85, volume ratio）, which can be detected via colorimetry under direct visualization. The sensor exhibited different results for other anions, such as F, CI, Br, I-, H2PO4-, AcO-, HSO4 and C104. The changes in the UV-Vis spectra also show the specific recognition of HSO3 , rather than similar anions H2PO4- and HSO4- in the same aqueous solution. The detection limit of HSO3- was 1×10-6 mol/L.

关键词： Bisulfite anion sensor 2-Aminobenzimidazole Aqueous solution Single recognition Colorimetry

Improving the detecting efficiency of suspected gastrointestinal tumors with dual-time-point 18F-FDG PET/CT

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Nuclear Science and Techniques 2017年第10期28卷 23-30页

作者： Jian-Hua Song Jin-Hua Zhao Xue-Qian Xie Yan Xing Xiang Chen wen-li qiao Chang-Cun liu Tai-Song Wang Department of Nuclear Medicine Shanghai General HospitalShanghai Jiao Tong University School of Medicine100 Haining Rd.Shanghai 200080China Department of Radiology Shanghai General HospitalShanghai Jiao Tong University School of Medicine100 Haining Rd.Shanghai 200080China

We conducted a retrospective analysis of 221 subjects with 256 suspected gastrointestinal lesions from2007 to 2015 to explore the detecting efficiency of dualtime-point fluorine-18 fludeoxyglucose(^(18)F-FDG) positron emission tomography/computed tomography(PET/CT)and pathology examination. The abdominal delayed PET/CT was performed within 45 min of the conventional *** change in maximum standardized uptake value(ASUV_(max)) and morphological features of the suspected lesions between the conventional and dual-time-point PET/CT were compared. The sensitivity, specificity, positive predictive value, and negative predictive value(NPV) of conventional PET/CT were 81.6%(84/103), 56.2%(86/153), 55.6%(84/151), and 81.9%(86/105), *** of dual-time-point PET/CT were 94.1%(97/103),78.4%(120/153), 74.6%(97/130), and 95.2%(120/126),respectively. There was a significant difference between the conventional and dual-time-point PET/CT(P lity will be an effective method when we accidentally find a suspected gastrointestinal tumor on the conventional PET/CT images.

关键词：胃肠道肿瘤 CT检测检测效率 PET 肠肿瘤计算机断层扫描正电子发射断层扫描形态特征

Exploring gut microbiota as a novel therapeutic target in Crohn’s disease: Insights and emerging strategies

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World Journal of Gastroenterology 2025年第2期31卷 147-156页

作者： Tong qiao Xian-Hui wen Department of Clinical Medicine Jinan UniversityGuangzhou 510632Guangdong ProvinceChina College of life Science and Technology Jinan UniversityGuangzhou 510632Guangdong ProvinceChina

Extensive research has investigated the etiology of Crohn’s disease(CD),encompassing genetic predisposition,lifestyle factors,and environmental ***,the gut microbiome,recognized as the human body’s second-largest gene pool,has garnered significant attention for its crucial role in the patho-genesis of *** paper investigates the mechanisms underlying CD,focusing on the role of‘creeping fat’in disease progression and exploring emerging therapeutic strategies,including fecal microbiota transplantation,enteral nutri-tion,and therapeutic *** fat has been identified as a unique patho-logical feature of CD and has recently been found to be associated with dysbiosis of the gut *** characterize this dysbiotic state by identi-fying key microbiome-bacteria,fungi,viruses,and archaea,and their contributions to CD ***,this paper reviews contemporary therapies,empha-sizing the potential of biological therapies like fecal microbiota transplantation and dietary *** elucidating the complex interactions between host-microbiome dynamics and CD pathology,this article aims to advance our under-standing of the disease and guide the development of more effective therapeutic strategies for managing CD.

关键词： Crohn’s disease Gut microbiome Dysbiosis Creeping fat Fecal microbiota transplantation

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传统中医医案说理本土化研究

科学技术哲学研究 2019年第5期36卷 93-99页

作者：李文巧中山大学逻辑与认知研究所

在新的国家医疗卫生政策的引导下,传统中医迎来了发展与挑战。受此影响,当前中医方法论研究在取得成绩的同时,也凸显了不足,缺乏对临床诊断,尤其是医案说理活动的分析。文章尝试引入广义论证理论,结合传统中医医案文本的特点,提出传统... 详细信息

在新的国家医疗卫生政策的引导下,传统中医迎来了发展与挑战。受此影响,当前中医方法论研究在取得成绩的同时,也凸显了不足,缺乏对临床诊断,尤其是医案说理活动的分析。文章尝试引入广义论证理论,结合传统中医医案文本的特点,提出传统中医医案说理的本土化研究方法;进而选择《小儿药证直诀》作为分析案例,从该文本出发,采用上述方法分析中医临床诊断中的说理,推动中医方法论的本土化研究。

关键词：广义论证本土化研究钱乙《小儿药证直诀》

基于扎根理论的移动短视频用户使用行为影响因素研究

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情报科学 2020年第8期38卷 57-61,158页

作者：关升亮李文乔吉林大学党委办公室吉林长春130012 吉林大学管理学院吉林长春130012

【目的/意义】随着移动互联网的快速发展,人们越来越倾向于使用移动学习来快速有效的进行信息和知识的获取,分析移动短视频用户使用行为影响因素对于更好地提供移动短视频服务具有重要作用。【方法/过程】构建了半结构化访谈问卷,通过... 详细信息

【目的/意义】随着移动互联网的快速发展,人们越来越倾向于使用移动学习来快速有效的进行信息和知识的获取,分析移动短视频用户使用行为影响因素对于更好地提供移动短视频服务具有重要作用。【方法/过程】构建了半结构化访谈问卷,通过深度访谈获取访谈记录,为知识类移动短视频用户使用行为驱动因素的研究提供真实的原始资料,并运用扎根理论的质性研究方法进行逐级编码,不断比较进而形成概念范畴以及概念范畴之间的逻辑关系,分析移动环境下短视频用户使用行为的驱动因素及构建影响因素模型。【结果/结论】个人信息需求是使用户使用知识类移动短视频的根本所在,个人价值需求是用户使用移动短视频的核心,个人情感需求是用户使用移动短视频的基本,成本及准入条件是用户使用移动短视频的保障。

关键词：移动短视频扎根理论使用行为

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在职研究生学术失范与治理探析

黑龙江高教研究 2018年第4期36卷 109-112页

作者：郑文力杨乔乔福州大学福建福州350108

文章从在职研究生成长的环境因素与自身原因两个方面探究引起学术失范的根源,提出在在职研究生培养过程中,应从制度设计引领、导师潜移默化、学生自我调适等方面提出治理对策。其中,政府、社会与高校应采取相应的措施促使在职研究生遵... 详细信息

文章从在职研究生成长的环境因素与自身原因两个方面探究引起学术失范的根源,提出在在职研究生培养过程中,应从制度设计引领、导师潜移默化、学生自我调适等方面提出治理对策。其中,政府、社会与高校应采取相应的措施促使在职研究生遵从学术规范;导师在育人过程中应从认识形成的"知、情、意、行"视角,构建在职研究生的学术规范;在职研究生则应从角色定位、积极学习、修身养性等方面进行自我规范。

关键词：在职研究生学术失范治理

Antiviral therapy for hepatitis B virus infection is beneficial for the prognosis hepatocellular carcinoma

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 1-9页

作者： Hui Wan Yu-Xin Zhang Guan-Yue Shan Jun-Ya Cheng Duan-Rui qiao Yi-Ying liu wen-Na Shi Hai-Jun li Institute of Translational Medicine The First Hospital of Jilin UniversityChangchun 130061Jilin ProvinceChina Department of Bioengineering Pharmacy School of Jilin UniversityChangchun 130061Jilin ProvinceChina Institute of liver Diseases Institute of Translational MedicineThe First Hospital of Jilin UniversityChangchun 130061Jilin ProvinceChina

In this editorial,we comment on the article by Mu et al,published in the recent issue of the World Journal of Gastrointestinal *** pay special attention to the immune tolerance mechanism caused by hepatitis B virus(HBV)infection,the pathogenesis of hepatocellular carcinoma(HCC),and the role of antiviral therapy in treating HCC related to HBV *** infection leads to systemic innate immune tolerance by directly inhibiting pattern recognition receptor recognition and antiviral signaling pathways,as well as by inhibiting the immune functions of macrophages,natural killer cells and dendritic *** addition,HBV leads to an immunosuppressive cascade by expressing inhibitory molecules to induce exhaustion of HBV-specific cluster of differentiation 8+T cells,ultimately leading to long-term viral *** loss of immune cell function caused by HBV infection ultimately leads to ***-term antiviral therapy can improve the prognosis of patients with HCC and prevent tumor recurrence and metastasis.

关键词： Hepatitis B virus Hepatocellular carcinoma Hepatitis B virus-DNA Immune tolerance Antiviral therapy

帕米尔构造结及邻区的晚新生代构造与现今变形

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地震地质 2011年第2期33卷 241-259页

作者：陈杰李涛李文巧袁兆德中国地震局地质研究所地震动力学国家重点实验室北京100029

帕米尔构造结是中国大陆受板块动力作用和地震活动最强烈的地区之一。晚新生代帕米尔构造结北部向北楔入推移了约300km,但对这一变形过程至今未能很好的限定。帕米尔构造结的晚新生代构造变形在空间上是不对称的。帕米尔西缘表现为NW向... 详细信息

帕米尔构造结是中国大陆受板块动力作用和地震活动最强烈的地区之一。晚新生代帕米尔构造结北部向北楔入推移了约300km,但对这一变形过程至今未能很好的限定。帕米尔构造结的晚新生代构造变形在空间上是不对称的。帕米尔西缘表现为NW向的径向逆冲,伴随着塔吉克盆地东部块体绕垂直轴的逆时针旋转。在帕米尔东部,构造变形的方式、空间分布和机制是随时间变化的。在渐新世末至约11Ma,帕米尔东部以喀什-叶城转换带(KYTS)的右旋走滑作用为主,同时帕米尔前缘沿主帕米尔逆断层(MPT)发生强烈缩短作用,塔里木向南俯冲,帕米尔中、下地壳相对于上地壳向北俯冲并加厚、熔融。弧形弯曲或径向逆冲作用以及中、下地壳的加厚、弱化致使公格尔山拉张系北部于7～8Ma开始EW向拉张作用,并向南扩展。至3～5Ma,构造格局发生了巨变,喀喇昆仑右旋走滑断裂北段停止活动;KYTS右旋走滑由早期的11～15mm/a明显减小至1.7～5.3mm/a;帕米尔构造结与塔里木块体间的相对运动明显减弱,两者可能已拼接在一起作为一个整体以(21±1)mm/a的速率向北推挤,变形前锋向北迁移至克孜勒苏河一线。帕米尔构造结及邻区晚第四纪及现今的活动变形主要集中在公格尔拉张系、帕米尔前缘褶皱-逆断层带(PFT)与南天山南缘的阿图什-喀什褶皱带上。

关键词：帕米尔构造结晚新生代构造拉张作用径向逆冲弧形弯曲