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Parks for All Seasons Planned industrial development cooperation in the Lancang-Mekong region

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China Report ASEAN 2024年第Z1期 66-67页

作者： Qin Yun Huang Yu Zhong Xiaotao tian yuyang the Lancang-Mekong Energy & Power Cooperation Research Center the China Southern Power Grid Company the China Energy Research Society

Industrial parks are important drivers of national and regional economic development responsibilities in terms of industrial transformation and upgrading.They are particularly effective at cultivating emerging industries and fostering the elements of innovation.In recent years,the Lancang-Mekong region has developed multiple types of industrial parks,which have gradually evolved into park clusters capable of enhancing social and economic development in the region.

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The risk of mpox importation and subsequent outbreak potential in Chinese mainland: a retrospective statistical modelling study

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Infectious Diseases of Poverty 2024年第1期13卷 63-73页

作者： Xiaowei Deng yuyang tian Junyi Zoul Juan Yang Kaiyuan Sun Hongjie Yu School of Public Health Key Laboratory of Public Health SafetyMinistry of EducationFudan UniversityShanghai 200032China Division of International Epidemiology and Population Studies Fogarty International CenterNational Institutes of HealthBethesdaMDUSA

Background The 2022-2023 mpox(monkeypox)outbreak has spread rapidly across multiple countries in the non-endemic region,mainly among men who have sex with men(MSM).In this study,we aimed to evaluate mpox's importation risk,border screening effectiveness and the risk of local outbreak in Chinese mainland.Methods We estimated the risk of mpox importation in Chinese mainland from April 14 to September 11,2022 using the number of reported mpox cases during this multi-country outbreak from Global.health and the international air-travel data from Official Aviation Guide.We constructed a probabilistic model to simulate the effectiveness of a border screening scenario during the mpox outbreak and a hypothetical scenario with less stringent quarantine requirement.And we further evaluated the mpox outbreak potential given that undetected mpox infections were introduced into men who have sex with men,considering different transmissibility,population immunity and population activity.Results We found that the reduced international air-travel volume and stringent border entry policy decreased about 94% and 69% mpox importations respectively.Under the quarantine policy,15-19% of imported infections would remain undetected.Once a case of mpox is introduced into active MSM population with almost no population immunity,the risk of triggering local transmission is estimated at 42%,and would rise to>95% with over six cases.Conclusions Our study demonstrates that the reduced international air-travel volume and stringent border entry policy during the COvID-19 pandemic reduced mpox importations prominently.However,the risk could be sub-stantially higher with the recovery of air-travel volume to pre-pandemic level.Mpox could emerge as a public health threat for Chinese mainland given its large MSM community.

关键词： Mpox(Monkeypox) Importation risk International air travel Statistical modelling Men who have sex with men

Electronic structures and Mott state of epitaxial TaS_(2) monolayers

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Science China(Physics,Mechanics & Astronomy) 2024年第5期67卷 91-97页

作者： Qichao tian Chi Ding Xiaodong Qiu Qinghao Meng Kaili Wang Fan Yu yuyang Mu Can Wang Jian Sun Yi Zhang National Laboratory of Solid State Microstructure School of PhysicsNanjing UniversityNanjing 20093China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China School of Physics and Electronic Sciences Changsha University of Science and TechnologyChangsha 410114China Hefei National Laboratory Hefei 230088China

Layered material TaS2hosts multiple structural phases and exotic correlated quantum states,including charge density wave(CDW),superconductivity,quantum spin liquid,and Mott insulating state.Here,we synthesized TaS_(2)monolayers in H and T phases using the molecular beam epitaxial(MBE)method and studied their electronic structures via angle-resolved photoemission spectroscopy(ARPES).We found that the H phase TaS_(2)(H-TaS_(2))monolayer is metallic,with an energy band crossing the Fermi level.In contrast,the T phase TaS_(2)(T-TaS_(2))monolayer shows an insulated energy gap at the Fermi level,while the normal calculated band structure implies it should be metallic without any band gap.However,by considering Hubbard interaction potential U,further density functional theory(DFT)calculation suggests that monolayer T-TaS_(2)could be a CDW Mott insulator,and the DFT+U calculation matches well with the ARPES result.More significantly,the temperature-dependent ARPES result indicates that the CDW Mott state in the T-TaS_(2)monolayer is more robust than its bulk counterpart and can persist at room temperature.Our results reveal that the dimensional effect can enhance the CDW Mott state and provide valuable insights for further exploring the exotic properties of monolayer TaS2.

关键词： temperature monolayer state

Respiratory protein-driven selectivity during the Permian-Triassic mass extinction

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The Innovation 2024年第3期5卷 122-128页

作者： Haijun Song yuyang Wu Xu Dai Jacopo Dal Corso Fengyu Wang Yan Feng Daoliang Chu Li tian Huyue Song William JFoster State Key Laboratory of Biogeology and Environmental Geology School of Earth SciencesChina University of GeosciencesWuhan 430074China Biogéosciences UMR 6282CNRSUniversitéde Bourgogne21000 DijonFrance Universitat Hamburg Institute for Geology20148 HamburgGermany

Extinction selectivity determines the direction of macroevolution,especially during mass extinction;however,its driving mechanisms remain poorly understood.By investigating the physiological selectivity of marine animals during the Permian-Triassic mass extinction,we found that marine clades with lower O2-carrying capacity hemerythrin proteins and those relying on O2 diffusion experienced significantly greater extinction intensity and body-size reduction than those with higher O2-carrying capacity hemoglobin or hemocyanin proteins.Our findings suggest that animals with high O2-carrying capacity obtained the necessary O2 even under hypoxia and compensated for the increased energy requirements caused by ocean acidification,which enabled their survival during the Permian-Triassic mass extinction.Thus,high O2-carrying capacity may have been crucial for the transition from the Paleozoic to the Modern Evolutionary Fauna.

关键词： extinction selectivity finding

Cretaceous integrative stratigraphy,biotas,and paleogeographical evolution of the Qinghai-Tibetan Plateau and its surrounding areas

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Science China Earth Sciences 2024年第4期67卷 1229-1289页

作者： Dangpeng XI Guobiao LI Shijun JIANG Xin RAO tian JIANG tianyang WANG Zuohuan QIN Yasu WANG Jianzhong JIA Muhammad KAMRAN Zhongye SHI yuyang WU Panxi WANG Lixin SUN Qinggao ZENG Xiaoqiao WAN State Key Laboratory of Biogeology and Environmental Geology China University of GeosciencesBeijing 100083China College of Oceanography Hohai UniversityNanjing 213200China Key Laboratory of Palaeobiology and Petroleum Stratigraphy Nanjing Institute of Geology and PaleontologyChinese Academy of SciencesNanjing 210008China State Key Laboratory of Tibetan Plateau Earth System Environmentand Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China China National Offshore Oil Corporation Limited Beijing 100028China Shanghai Science and Technology Museum Shanghai 200120China Xizang Bureau of Geological and Mineral Exploration and Development Lhasa 850000China tianjin Geological Survey Center of China Geological Survey Tianjin 300170China

The Cretaceous Period is a vital time interval in deciphering the evolutionary history of the Neo-Tethys Ocean and the convergence of different plates and blocks across the Qinghai-Tibetan Plateau.A detailed stratigraphic framework and paleogeographic patterns are the basis for understanding the evolution of the Neo-Tethys Ocean and the formation of the QinghaiTibetan Plateau.Here,the Cretaceous stratigraphy,biota,paleogeography,and major geological events in the Qinghai-Tibetan Plateau are analyzed to establish an integrative stratigraphic framework,reconstruct the paleogeography during the Cretaceous Period,and decode the history of the major geological events.The Cretaceous rocks of the Qinghai-Tibetan Plateau and its surrounding area are predominantly marine deposits,with a small amount of interbedded marine-terrestrial and terrestrial conponents.The Indus-Yarlung Tsangpo Suture Zone was responsible for the deposition of deep marine sediments dominated by ophiolite suites and radiolarian silicalite.To the south,the Tethys Himalayas and Indus Basin received marine sediments of varying depths and lithology;to the north,the Xigaze and Ladakh forearc basins are also filled with marine sediments.The Lhasa Block,Karakorum Block,western Tarim Basin,and West Burma block consist of shallow marine,interbedded marine-terrestrial,and terrestrial sediments.The Qiangtang Basin and other areas are dominated by terrestrial sedimentation.The Cretaceous strata of the Qinghai-Tibetan Plateau and its surrounding areas are widely distributed and diversified,with abundant foraminifera,calcareous nannofossils,radiolarians,ammonites,bivalves,and palynomorphs.On the basis of integrated lithostratigraphic,biostratigraphic,geochronologic,and chemostratigraphic analyses,we proposed herein a comprehensive stratigraphic framework for the Cretaceous Period of the eastern Neo-Tethys.By analyzing the Cretaceous biota of different biogeographic zones from eastern Neo-Tethys and its surrounding areas,we reconstructed the paleobiogeography of d

关键词： Qinghai-Tibetan Plateau Tethys Cretaceous Stratigraphy Biota Paleogeography

酶联免疫吸附测定法用于中药质量控制的研究进展

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中国实验方剂学杂志 2024年第4期30卷 12-20页

作者：许源升刘姣张恬赵玉洋田慧南铁贵袁媛广西中医药大学南宁530200 中国中医科学院中药资源中心北京100700

在中药质量控制过程中,有效成分和有毒有害成分的检测是2个重要环节,传统检测方法如高效液相色谱法、液相色谱质谱联用法等虽然能准确对上述物质进行定量,但往往存在操作复杂、成本过高、不能随时检测、难溶及大分子物质检测困难等缺点... 详细信息

在中药质量控制过程中,有效成分和有毒有害成分的检测是2个重要环节,传统检测方法如高效液相色谱法、液相色谱质谱联用法等虽然能准确对上述物质进行定量,但往往存在操作复杂、成本过高、不能随时检测、难溶及大分子物质检测困难等缺点。酶联免疫吸附测定法(ELISA)是将抗原或抗体吸附在固相载体表面,利用抗原抗体的特异性反应实现目标检测物的定性或定量分析。该方法具有操作简单、快速、敏感性高、特异性强、实验设备要求简单、应用范围广、成本低等众多优点。近年来,ELISA技术在中药质量控制领域运用越来越广泛,特别是在以黄曲霉毒素为代表的真菌毒素含量的检测和中药有效成分定性定量检测方面,ELISA以其独特的优势发挥着越来越重要的作用,为大批量中药的快速质量检测提供了新方法、新思路。该文对近年来ELISA用于中药质量控制的研究进展进行系统梳理,并对其技术发展和应用前景进行展望,以期为进一步应用该方法保障中药质量安全可控提供借鉴和研究思路。

关键词：中药质量控制酶联免疫吸附测定法有毒有害成分农药残留有效成分

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牙周膜干细胞免疫调节特性的研究进展

口腔疾病防治 2024年第1期32卷 76-80页

作者：文雯田宇阳谢旭东口腔疾病防治全国重点实验室国家口腔医学中心国家口腔疾病临床医学研究中心四川大学华西口腔医院牙周病科四川成都610041

牙周膜干细胞(periodontal ligament stem cells,PDLSCs)具有多向分化的潜能,是牙周组织再生的首选种子细胞。近年来,大量研究证实PDLSCs还具有广泛的免疫调节特性,深入探究其具体分子机制对于牙周炎的治疗具有重要的指导意义。本文旨... 详细信息

牙周膜干细胞(periodontal ligament stem cells,PDLSCs)具有多向分化的潜能,是牙周组织再生的首选种子细胞。近年来,大量研究证实PDLSCs还具有广泛的免疫调节特性,深入探究其具体分子机制对于牙周炎的治疗具有重要的指导意义。本文旨在归纳总结PDLSCs对各种免疫细胞的调控以及炎症环境对PDLSCs免疫特性影响的研究进展,以期为实现PDLSCs的异体移植提供重要理论依据,从而提升牙周组织再生的治疗效果。现有研究表明,PDLSCs对固有免疫细胞和获得性免疫细胞均具有一定的免疫抑制作用,炎症刺激可导致其免疫调节特性受损。然而,目前的研究主要局限于体外细胞试验,缺乏对体内环境下PDLSCs免疫调节作用的深入研究,基于细胞谱系示踪和条件性基因敲除技术的体内研究可能成为未来的主要研究方向。

关键词：牙周膜干细胞组织再生免疫调节获得性免疫固有免疫中性粒细胞间充质干细胞炎症

某三甲专科医院住院患者皮损部位的多重耐药性分析及变化趋势

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皮肤性病诊疗学杂志 2024年第2期31卷 88-94页

作者：田彧旸邱慧刘娇南方医科大学皮肤病医院广东广州510091

目的了解三甲专科医院皮肤病住院患者皮损感染的一般情况、多重耐药及医院感染情况。方法收集整理2019年10月—2022年9月南方医科大学皮肤病医院住院患者皮损部位培养检出菌株的临床数据,分析多重耐药菌(MDRO)、主要特殊耐药菌、检出数... 详细信息

目的了解三甲专科医院皮肤病住院患者皮损感染的一般情况、多重耐药及医院感染情况。方法收集整理2019年10月—2022年9月南方医科大学皮肤病医院住院患者皮损部位培养检出菌株的临床数据,分析多重耐药菌(MDRO)、主要特殊耐药菌、检出数居前5位的病原菌的年度变化、耐药情况等。结果三年间的皮损标本培养共检出3331株病原菌,其中革兰阳性菌占77.72%,革兰阴性菌占17.35%,真菌占4.92%。皮损培养阳性患者中占比最高的疾病类型为湿疹性皮肤病(27.32%)。检出菌株数前5的病原菌为金黄色葡萄球菌、表皮葡萄球菌、铜绿假单胞菌、白色念珠菌和肺炎克雷伯菌,其中金黄色葡萄球菌和表皮葡萄球菌的构成比呈逐年增长趋势(均P<0.05)。3年间金黄色葡萄球菌多重耐药检出率、耐甲氧西林金黄色葡萄球菌(MRSA)的检出率呈下降趋势(P<0.05)。MDRO总检出率为45.39%,医院感染总发生率为0.67%,MDRO医院感染发生率呈逐年下降趋势(χ^(2)=26.26,P<0.05)。结论葡萄球菌等革兰阳性菌是皮损感染中最常见的病原菌,经验性使用抗生素时应首先考虑抗菌谱覆盖上述菌的抗生素。三年间MDRO和MRSA的医院感染发生率逐年下降,皮肤病医院对MDRO及MRSA的管控有效。表皮葡萄球菌及其多重耐药的检出率逐年增长,应加强对表皮葡萄球菌感染的管理。

关键词：多重耐药葡萄球菌革兰阳性菌专科医院医院感染

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蜈蚣配方颗粒的位点特异性PCR鉴别

中国实验方剂学杂志 2024年第4期30卷 48-54页

作者：许源升胡力蒋超赵玉洋陈天韵张辉田慧袁媛广西中医药大学南宁530200 中国中医科学院中药资源中心北京100700 华润三九现代中药制药有限公司广东深圳518029

目的:为进一步保障蜈蚣药材及其制品的质量与临床疗效,建立蜈蚣配方颗粒特异性聚合酶链式反应(PCR)鉴别方法。方法:根据蜈蚣细胞色素C氧化酶亚基3(COX-3)基因序列筛选适用于蜈蚣配方颗粒的稳定引物区间,并在区间内筛选获得蜈蚣及其混伪... 详细信息

目的:为进一步保障蜈蚣药材及其制品的质量与临床疗效,建立蜈蚣配方颗粒特异性聚合酶链式反应(PCR)鉴别方法。方法:根据蜈蚣细胞色素C氧化酶亚基3(COX-3)基因序列筛选适用于蜈蚣配方颗粒的稳定引物区间,并在区间内筛选获得蜈蚣及其混伪品的单核苷酸多态性(SNP)位点,设计特异性鉴别引物。分别收集蜈蚣及其混伪品,考察退火温度、循环次数、不同Taq酶、DNA模板量、不同PCR仪、不同引物量等因素对PCR鉴别方法的影响,建立并优化PCR反应体系,并对此方法的专属性及适用性进行考察验证。结果:PCR鉴别反应体系为2×M5 PCR Mix 12.5μL,蜈蚣配方颗粒鉴别引物(10μmol·L^(-1))各0.4μL,DNA模板2.5μL,无菌双蒸水9.2μL。PCR反应参数为94℃预变性3 min,循环反应30次(94℃变性20 s,62℃退火20 s,72℃延伸45 s),72℃延伸5 min。利用上述PCR反应体系和反应参数对蜈蚣药材及其制品进行扩增,电泳检测结果表明所有正品均可在约135 bp处显示出一条明亮条带,而混伪品无条带。结论:建立的特异性PCR鉴别方法可准确对蜈蚣药材、饮片、标准汤剂冻干粉、配方颗粒中间体、配方颗粒成品进行准确鉴别,为进一步保障蜈蚣药材及其制品的质量具有重要意义。

关键词：蜈蚣配方颗粒单核苷酸多态性(SNP)位点聚合酶链式反应