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Journal of Environmental Sciences 2024年第7期141卷 330-342页

作者： Zi-Han Wang Chun-Hua Huang zhi-sheng Liu Li Mao Ben-Zhan Zhu State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China College of Environment and Resources University of Chinese Academy of SciencesBeijing 100049China

We have found recently that two-step intrinsic hydroxyl radical(·OH)-dependent chemiluminescence(CL)could be produced by carcinogenic tetrahaloquinone and H_(2)O_(2).However,the first-step CL was too fast to clearly detect the stepwise generation of·OH and CL,and to distinguish the exact dividing point between the first-step and second-step *** we found that,extremely clear two-step intrinsic CL could be produced by the relative slow reaction of tetrabromohydroquinone(TBHQ)with H_(2)O_(2),which was directly dependent on the two-step·OH ***,the second-step,but not the first-step CL production of TBHQ/H_(2)O_(2)(CRET donor)was markedly enhanced by fluorescein(a typical xanthene dye,CRET acceptor)through a unique chemiluminescence resonance energy transfer(CRET)*** novel CRET system of TBHQ/H_(2)O_(2)/fluorescein was successfully applied for the sensitive detection of TBHQ with the detection limit as low as 2.5μmol/*** findings will help to develop more sensitive and highly efficient CL or CRET systems and specific CL sensor to detect the carcinogenic haloquinones,which may have broad environmental applications.

关键词： Two-step chemiluminescence Bromohydroquinone Hydrogen peroxide Hydroxyl radical CRET

Synergistic redox reactions toward co-production of H_(2)O_(2)and value-added chemicals:Dual-functional photocatalysis to achieving sustainability

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SusMat 2024年第3期4卷 36-72页

作者： Brenden Jing Su Joel Jie Foo Grayson zhi sheng Ling Wee-Jun Ong School of Energy and Chemical Engineering Xiamen University MalaysiaSelangor Darul EhsanMalaysia Center of Excellence for NaNo Energy&Catalysis Technology Xiamen University MalaysiaSelangor Darul EhsanMalaysia State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamenChina Gulei Innovation Institute Xiamen UniversityZhangzhouChina Shenzhen Research Institute Xiamen UniversityShenzhenChina

IntegratingH_(2)O_(2)evolution with oxidative organic synthesis in a semiconductordriven photoredox reaction is highly attractive since H_(2)O_(2)and high-value chemicals can be concurrently produced using solar light as the only energy *** dual-functional photocatalytic approach,free from sacrificial agents,enables simultaneous production of H_(2)O_(2)and high-value organic *** strategy promises a green and sustainable organic synthesis with minimal greenhouse gas *** this review,we first elucidate the fundamental principles of cooperative photoredox integration of H_(2)O_(2)synthesis and selective organic oxidation with simultaneous utilization of photoexcited electrons and holes over semiconductor-based ***,a thorough review on the recent advancements of cooperative photoredox synthesis of H_(2)O_(2)and value-added chemicals is ***,in-depth discussions and insights into the techniques for unravelling the photoredox reaction mechanisms are ***,critical challenges and prospects in this thriving field are comprehensively *** is envisioned that this review will serve as a pivotal guidance on the rational design of such dual-functional photocatalytic system,thereby further stimulating the development of economical and environmentally benignH_(2)O_(2)and high-value chemicals production.

关键词： cooperative photoredox synthesis dual-functional photocatalysts H_(2)O_(2) photocatalysis selective organic oxidation

Efficacy of laparoscopic low anterior resection for colorectal cancer patients with 3D-vascular reconstruction for left coronary artery preservation

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World Journal of Gastrointestinal Surgery 2024年第6期16卷 1548-1557页

作者： Ye Wang zhi-sheng Liu Zong-Bao Wang Shawn Liu Feng-Bo Sun Department of General Surgery Qingdao Hiser Hospital Affiliated of Qingdao University(Qingdao Traditional Chinese Medicine Hospital)Qingdao 266033Shandong ProvinceChina Department of Gastrointestinal Surgery National University Hospital of SingaporeSingapore 119228Singapore

BACKGROUND Laparoscopic low anterior resection(LLAR)has become a mainstream surgical method for the treatment of colorectal cancer,which has shown many advantages in the aspects of surgical trauma and postoperative ***,the effect of surgery on patients'left coronary artery and its vascular reconstruction have not been deeply *** the development of medical imaging technology,3D vascular reconstruction has become an effective means to evaluate the curative effect of *** To investigate the clinical value of preoperative 3D vascular reconstruction in LLAR of rectal cancer with the left colic artery(LCA)*** A retrospective cohort study was performed to analyze the clinical data of 146 patients who underwent LLAR for rectal cancer with LCA preservation from January to December 2023 in our *** patients underwent LLAR of rectal cancer with the LCA preserved,and the intraoperative and postoperative data were *** patients were divided into a reconstruction group(72 patients)and a nonreconstruction group(74 patients)according to whether 3D vascular reconstruction was performed before *** clinical features,operation conditions,complications,pathological results and postoperative recovery of the two groups were collected and *** A total of 146 patients with rectal cancer were included in the study,including 72 patients in the reconstruction group and 74 patients in the nonreconstruction *** were 47 males and 25 females in the reconstruction group,aged(59.75±6.2)years,with a body mass index(BMI)(24.1±2.2)kg/m^(2),and 51 males and 23 females in the nonreconstruction group,aged(58.77±6.1)years,with a BMI(23.6±2.7)kg/m^(2).There was no significant difference in the baseline data between the two groups(P>0.05).In the submesenteric artery reconstruction group,35 patients were type Ⅰ,25 patients were type Ⅱ,11 patients were type Ⅲ,and 1 patient was type Ⅳ.There were 37 type Ⅰ patients,24

关键词： Laparoscopic low anterior resection 3D vascular reconstruction Coronary artery Colorectal cancer Retrospective cohort study

Downregulation of MUC1 Inhibits Proliferation and Promotes Apoptosis by Inactivating NF-κB Signaling Pathway in Human Nasopharyngeal Carcinoma

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生物化学与生物物理进展 2024年第9期51卷 2182-2193页

作者： WU Shou-Wu LIN Shao-Kun NIAN Zhong-Zhu WANG Xin-Wen LIN Wei-Nian ZHUANG Li-Ming WU zhi-sheng HUANG zhi-Wei WANG A-Min GAO Ni-Li CHEN Jia-Wen YUAN Wen-Ting LU Kai-Xian LIAO Jun Department of Otolaryngology Quanzhou First HospitalQuanzhou 362001China Department of Otolaryngology Quanzhou First Hospital Affiliated to Fujian Medical UniversityQuanzhou 362001China Department of Ultrasound Quanzhou First Hospital Affiliated to Fujian Medical UniversityQuanzhou 362001China Department of Orthopaedics Dongguan City People’s HospitalDongguan 523016China

Objective To investigate the effect of mucin 1(MUC1)on the proliferation and apoptosis of nasopharyngeal carcinoma(NPC)and its regulatory *** The 60 NPC and paired para-cancer normal tissues were collected from October 2020 to July 2021 in Quanzhou First *** expression of MUC1 was measured by real-time quantitative PCR(qPCR)in the patients with *** 5-8F and HNE1 cells were transfected with siRNA control(si-control)or siRNA targeting MUC1(si-MUC1).Cell proliferation was analyzed by cell counting kit-8 and colony formation assay,and apoptosis was analyzed by flow cytometry analysis in the 5-8F and HNE1 *** qPCR and ELISA were executed to analyze the levels of TNF-αand *** blot was performed to measure the expression of MUC1,NFкB and apoptosis-related proteins(Bax and Bcl-2).Results The expression of MUC1 was up-regulated in the NPC tissues,and NPC patients with the high MUC1 expression were inclined to EBV infection,growth and metastasis of *** of MUC1 restrained malignant features,including the proliferation and apoptosis,downregulated the expression of p-IкB、p-P65 and Bcl-2 and upregulated the expression of Bax in the NPC *** Downregulation of MUC1 restrained biological characteristics of malignancy,including cell proliferation and apoptosis,by inactivating NF-κB signaling pathway in NPC.

关键词： mucin 1 nasopharyngeal carcinoma NF-κB signaling pathway proliferation apoptosis

体育锻炼对老年人静息心率影响的Meta分析

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福建体育科技 2024年第2期43卷 20-26页

作者：张志胜徐芝芳宁夏大学体育学院宁夏银川750021

静息心率(RHR)与死亡率呈正相关,定期进行有规律的锻炼可降低静息心率。本研究通过系统评价不同类型的体育运动,评估定期锻炼是否对健康老年人静息心率产生影响。方法:在六个数据库中进行了系统的文献研究,从数据库建库开始到2022年12... 详细信息

静息心率(RHR)与死亡率呈正相关,定期进行有规律的锻炼可降低静息心率。本研究通过系统评价不同类型的体育运动,评估定期锻炼是否对健康老年人静息心率产生影响。方法:在六个数据库中进行了系统的文献研究,从数据库建库开始到2022年12月30日止检索与体育锻炼对老年健康人群干预相关的随机对照实验文献。把符合纳入标准的文献进行筛选,最终纳入21篇文献,并使用RevMan5.4软件进行meta分析。结果:Meta分析显示,定期有规律的耐力训练后,老年人静息心率改善显著(SMD=-0.73,95%CI为[-0.97,-0.48],P<0.0001),达到小效应量;一定负荷的力量训练对降低老年人静息心率有一定效果(SMD=-0.73,95%CI为[-0.97,-0.48],P<0.0001),达到中等效应量;瑜伽训练与太极拳训练对改善老年人静息心率效果不明显,合并效应量分别为(SMD=-2.91,95%CI为[-0.30,-0.03],P=0.01)和(SMD=-0.28,95%CI为[-0.48,-0.09],P=0.004),达到大效应量和小效应量。结论:耐力训练和力量训练能显著降低老年人静息心率,这种效果可能有助于降低由于经常锻炼而导致的全因死亡率,而太极拳训练和瑜伽训练效果不明显;同时不同运动类型的体育运动的运动强度、运动周期以及运动形式在性别差异方面对老年人静息心率的影响需要深入研究和探讨。

关键词：体育锻炼老年人静息心率 Meta分析

常温下非晶态聚乙烯内聚能密度的测定及其应用

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高分子通报 2024年第2期37卷 263-269页

作者：徐涛傅智盛李寒莹高分子合成与功能构造教育部重点实验室山西浙大新材料与化工研究院高分子科学与工程学系浙江大学杭州310058 杭州星庐科技有限公司杭州310012 浙江大学-星庐科技高端聚烯烃联合研发中心浙江大学杭州310058 浙江大学高分子新物质创制国际研究中心杭州310058

内聚能密度描述了分子间作用力的大小,是高分子物理中最基础的概念之一。高聚物的物理性质很多都与内聚能密度密切相关。在高分子物理本科教学中,聚乙烯通常被描述为“用内聚能密度大小判断材料宏观用途”的唯一例外。该特例出现被归因... 详细信息

内聚能密度描述了分子间作用力的大小,是高分子物理中最基础的概念之一。高聚物的物理性质很多都与内聚能密度密切相关。在高分子物理本科教学中,聚乙烯通常被描述为“用内聚能密度大小判断材料宏观用途”的唯一例外。该特例出现被归因为聚乙烯的结晶性,而验证聚乙烯是否是例外的难题是无法得到常温下的非晶态聚乙烯。本文采用了一种α-二亚胺镍催化剂(NiB)催化乙烯加压聚合成功合成了常温下非晶态聚乙烯(重均分子量为2.01×10^(5)g/mol,分子量分布为1.80,支化度为107个支链/1000个碳,玻璃化转变温度为-63.1℃,密度为0.856 g/cm^(3))。采用最大特性黏度法测得聚乙烯的内聚能密度为259 J/cm^(3),与基团贡献法估算的数值十分接近;常温下,该非晶态聚乙烯宏观表现为橡胶态,符合橡胶态特性的普适规律。结果表明,非晶态聚乙烯的内聚能密度(<300 J/cm^(3))及其宏观表现(橡胶态)之间的关联并非例外,而是符合教科书上“用内聚能密度大小判断材料宏观用途”的一般规律。

关键词：高分子物理内聚能密度非晶态聚乙烯

Recent advances in structural modification on graphitic carbon nitride(g-C_(3)N_(4))-based photocatalysts for high-efficiency photocatalytic H_(2)O_(2)production

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Nano Research Energy 2024年第1期3卷 101-151页

作者： Feng Ming Yap Grayson zhi sheng Ling Brenden Jing Su Jian Yiing Loh Wee-Jun Ong School of Energy and Chemical Engineering Xiamen University MalaysiaSelangor Darul Ehsan 43900Malaysia Center of Excellence for NaNo Energy&Catalysis Technology(CONNECT) Xiamen University MalaysiaSelangor Darul Ehsan 43900Malaysia State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Gulei Innovation Institute Xiamen UniversityZhangzhou 363200China Shenzhen Research Institute of Xiamen University Shenzhen 518057China

To date,extensively high demand for hydrogen peroxide(H_(2)O_(2))has been predominantly supplied by the anthraquinone process for several worldwide applications,encompassing wastewater treatment,environmental remediation,and chemical ***,the compacted manufacturing,massive energy input and the release of tremendous wastes have restricted commercialization *** to mitigate such issues,the photocatalytic H_(2)O_(2)production by utilizing g-C_(3)N_(4)catalysts has endowed a greener,sustainable and promising alternative,considering that it involves water and oxygen as reactants in the present of sunlight as energy ***,we have manifested a comprehensive overview of the research progress for g-C_(3)N_(4)-based semiconductors for photocatalytic H_(2)O_(2)*** review has systematically elucidated state-of-the-art development of different modifications on g-C_(3)N_(4)to unravel the fundamental mechanism of H_(2)O_(2)evolution via oxygen reduction reaction(ORR)and water oxidation reaction(WOR).In addition,the contribution made by vacancy introduction,doping,heterogenization,and co-catalyst passivation with respect to photoefficiency enhancement have been ***,the current challenges and perspective of future development directions on photocatalytic H_(2)O_(2)production have also been *** such,g-C_(3)N_(4)stands as the next step toward advancement in the configuration and modulation of high-efficiency photocatalysts.

关键词： photocatalysis g-C_(3)N_(4) H_(2)O_(2)production structural modification

魏征的情感思想:《隋书》对独孤皇后以情误国的书写

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山东女子学院学报 2024年第2期 82-95页

作者：李志生北京大学历史学系北京100871

《隋书》是唐初意识形态建设的重要内容,它集修史、取鉴、资治于一体。唐初统治者认为,文帝的废长立幼是隋朝败亡的缘由,在魏征笔下,高颎的废黜、太子勇与晋王广的废立皆因情起,而这些情事的本源,则在独孤后的“誓无异生之子”与“性忌... 详细信息

《隋书》是唐初意识形态建设的重要内容,它集修史、取鉴、资治于一体。唐初统治者认为,文帝的废长立幼是隋朝败亡的缘由,在魏征笔下,高颎的废黜、太子勇与晋王广的废立皆因情起,而这些情事的本源,则在独孤后的“誓无异生之子”与“性忌妾媵”,情在逻辑上成为隋亡祸本。《隋书》情为祸本思想受太宗一朝政治影响,更是魏征探索情感哲学的努力。宋明理学前,儒家情感思想尚未形成完整体系,对现实的指导更差强人意,士人纷纷从各自领域对情展开理论探索,魏征的情感认识就是其中的重要内容。唐代之前的情感史建立在文史哲、政治、现实交织的基础上;中国历史上的情感也走过了从中心到受摒、再到重新被认识的过程。赋正史以情感议题,《隋书》的政治史面貌或可得到改观。

关键词：《隋书》魏征独孤皇后性情情感史

考虑土体空间变异性的液化区埋地管道上浮反应与易损性分析

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工程力学 2024年第9期41卷 31-41页

作者：李典庆单晟治王顺杜文琪水资源工程与调度全国重点实验室(武汉大学) 湖北武汉430072 武汉大学工程风险与防灾研究所湖北武汉430072

为分析可液化场地土体空间变异性对管道上浮反应的影响,以土体相对密度Dr为随机场变量,采用基于乔列斯基分解的中点法生成随机场,基于OpenSees软件进行埋地管道二维随机有限元计算,分析了土体空间变异性对管道上浮位移的随机统计特征以... 详细信息

为分析可液化场地土体空间变异性对管道上浮反应的影响,以土体相对密度Dr为随机场变量,采用基于乔列斯基分解的中点法生成随机场,基于OpenSees软件进行埋地管道二维随机有限元计算,分析了土体空间变异性对管道上浮位移的随机统计特征以及管道上浮易损性的影响。结果表明:当管道上浮位移较大时,土体空间变异性条件下管道上浮位移均值小于确定性分析结果,且差距随空间变异性增强而更为显著;局部致密区间的存在一定程度上限制了管道上浮行为的发展;累积绝对速度CAV可较好表征地震动强度对管道上浮位移的影响;易损性函数的离差随土体空间变异性增强而不断增加,且均大于所对应的确定性离差,导致易损性曲线更为平缓;随机变量模型不能合理表征空间变异性对管道上浮反应的影响。

关键词：液化场地土体空间变异性随机场管道上浮地震易损性

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堆载和固结对高饱和度废弃黏土抗剪强度影响

中国环境科学 2024年第8期44卷 4446-4454页

作者：徐辉王锦楠李升智王璐楠詹良通浙江理工大学建筑工程学院浙江杭州310018 浙江理工大学科技与艺术学院浙江绍兴312369 浙江大学软弱土与环境土工教育部重点实验室浙江杭州310058

以杭州某基坑开挖渣土为研究对象,开展了24组大尺寸固结-直剪试验,研究了瞬时、阶梯型和斜坡型3种加载方式下高饱和度黏土固结过程抗剪强度的变化规律.结果表明,在上覆荷载作用下,土体产生瞬时压缩,压缩量随荷载的增大而增加;在3种加载... 详细信息

以杭州某基坑开挖渣土为研究对象,开展了24组大尺寸固结-直剪试验,研究了瞬时、阶梯型和斜坡型3种加载方式下高饱和度黏土固结过程抗剪强度的变化规律.结果表明,在上覆荷载作用下,土体产生瞬时压缩,压缩量随荷载的增大而增加;在3种加载方式下,当最终荷载相同时,最终沉降量较为接近;剪切曲线为应变硬化型,初始切线模量和最终剪应力均随固结度或上覆荷载的增大而提高;加载方式对初始切线模量有一定影响,对最终剪应力影响较小;抗剪强度随固结度的增长呈线性增大趋势,增大幅度随荷载的增大而显著;在3种加载方式下,当上覆荷载和固结度相同时,抗剪强度基本接近.基于试验结果,建立了高饱和度黏土固结过程抗剪强度预测模型,并利用本文试验数据和文献数据验证了其可靠性.模型分析结果表明:随着固结度的增长,抗剪强度包络线截距呈线性增大,而弯曲程度呈线性减小.在高饱和度废弃黏土堆填工程中,可采用本文建立的模型来预测不同堆填方式下土体固结过程的抗剪强度.

关键词：高饱和度黏土固结度堆载方式抗剪强度