检索结果-南通市图书馆

Immunologic characteristics and predictive risk factors of primary Sjögren’s syndrome complicated with malignant lymphoma:A multicenter case-control study

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Chinese Medical Journal 2024年第10期137卷 1252-1254页

作者： Yuebo Jin Linqing Hou Hao Li Liyun zhang Yuanhong peng Naidi Wang Jing He Department of Rheumatology and Immunology Beijing Key Laboratory for Rheumatism Mechanism and Immune DiagnosisPeking University People’s HospitalBeijing 100044China Department of Rheumatology and Immunology Linfen Third People’s HospitalLinfenShanxi 041000China Department of Rheumatology and Immunology Huabei Petroleum Administration Bureau General HospitalCangzhouHebei 062552China Affiliated Hospital of North Sichuan Medical College NanchongSichuan 637000China

To the Editor:Primary Sjögren’s syndrome(pSS)is a multi-systemic autoimmune disease characterized by the exocrine gland(mainly salivary and lacrimal glands)involvement,leading to xerostomia and xerophthalmia.[1]The course of pSS is relatively slow,but patients with pSS had higher risk of overall cancer,including malignant lymphoma(ML).[2]It is widely known that all-cause mortality rates were not increased in pSS patients as compared with healthy ***,secondary lymphoproliferative disease was an important cause of excess mortality.

关键词： mortality lymphoma malignant

CuO掺杂(Ba,Ca)(Ti,Sn)O_(3)陶瓷的结构与压电性能

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无机材料学报 2024年第10期39卷 1100-1106页

作者：彭萍谭礼涛福建理工大学材料科学与工程学院福州350108

(Ba,Ca)(Ti,Sn)O_(3)(BCTS)压电陶瓷具有优异的压电性能,在压电传感器、换能器领域表现出巨大的应用潜力。其烧结温度非常高(通常在1450℃以上),导致其在实际应用中受到限制。为了降低烧结温度,本研究以(Ba_(0.95)Ca_(0.05))(Ti_(0.90)S... 详细信息

(Ba,Ca)(Ti,Sn)O_(3)(BCTS)压电陶瓷具有优异的压电性能,在压电传感器、换能器领域表现出巨大的应用潜力。其烧结温度非常高(通常在1450℃以上),导致其在实际应用中受到限制。为了降低烧结温度,本研究以(Ba_(0.95)Ca_(0.05))(Ti_(0.90)Sn_(0.10))O_(3)为基体,选择CuO作为烧结助剂,通过传统固相烧结法制备BCTS-xCuO压电陶瓷,系统研究CuO含量对BCTS陶瓷的烧结温度、结构及介电、压电性能的影响规律。研究发现,加入CuO后,陶瓷主相为钙钛矿结构,存在少量杂相,可能是Ba_(2)TiO_(4)和Ba_(2)Cu_(3)O_(5.9)。CuO掺杂能有效将陶瓷的烧结温度从1480℃降低至1360℃,提高压电陶瓷的相对致密度,增大陶瓷的平均晶粒尺寸。当x=0.03时,陶瓷获得最高相对致密度(98.7%)和最大平均晶粒尺寸(22.5μm),同时获得最优异的电学性能:压电系数d_(33)=573 pC/N,机电耦合系数k_(p)=36%,相对介电常数ε_(r)=9467,介电损耗tanδ=0.021。与其他低温烧结的BaTiO_(3)基陶瓷相比,x=0.03陶瓷组分在低烧结温度下具有更高的d33,表现出优异的综合性能。本研究结果表明,CuO掺杂可有效降低BCTS陶瓷的烧结温度,提高压电性能,为其在压电器件领域的应用提供指导。

关键词：无铅压电陶瓷压电性能低温烧结

基于服务设计理念的高校图书馆未来学习中心建设实践与启示

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国家图书馆学刊 2024年第3期33卷 104-112,F0003页

作者：李鹏程川生山东大学图书馆

高校图书馆未来学习中心建设适应未来教育图景,能有效推动图书馆从被动信息资源提供者转变为教育主动参与者。本文以文献研究及案例分析为基础,反思高校图书馆未来学习中心建设存在的不足,提出服务设计理念能以人为本重视服务成效,为未... 详细信息

高校图书馆未来学习中心建设适应未来教育图景,能有效推动图书馆从被动信息资源提供者转变为教育主动参与者。本文以文献研究及案例分析为基础,反思高校图书馆未来学习中心建设存在的不足,提出服务设计理念能以人为本重视服务成效,为未来学习中心建设工作提供新的视角与路径。然后以山东大学图书馆为例,探讨服务设计思维在未来学习中心建设中的应用,包括洞察需求、系统协作、评估迭代等工作过程。基于山东大学图书馆实践对场景重构、用户参与、馆员定位、机构合作在未来学习中心建设工作中的促进作用展开研究。表5。参考文献30。

关键词：高校图书馆未来学习中心服务设计

双循环背景下我国副省级城市产业链供应链韧性测度研究——兼议武汉“965”现代产业体系韧性

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湖北社会科学 2024年第6期 86-94页

作者：彭颖刘帅熊凯江汉大学商学院会计系湖北武汉430056 武汉城市圈制造业发展研究中心湖北武汉430056 海军工程大学管理工程与装备经济系湖北武汉430033 江汉大学商学院

良好的供应链韧性是中国经济实现国内大循环为主,国内国际双循环相互促进的新发展格局的重要基础设施和可靠依托。以我国副省级城市为研究对象,从经济韧性、社会韧性、环境韧性和技术韧性四个维度构建指标体系,运用熵权法测度和分析我... 详细信息

良好的供应链韧性是中国经济实现国内大循环为主,国内国际双循环相互促进的新发展格局的重要基础设施和可靠依托。以我国副省级城市为研究对象,从经济韧性、社会韧性、环境韧性和技术韧性四个维度构建指标体系,运用熵权法测度和分析我国副省级城市产业链供应链韧性,研究发现南方城市产业链供应链韧性水平普遍高于中西部城市和北方城市,处于全国平均水平以上,中西部城市略低于全国平均水平,北方城市低于中西部城市。基于上述研究结论,建议我国副省级城市特别是武汉“965”现代产业体系在高质量发展方面应增强营商环境韧性、强化产业链供应链优势、加快培育专精特新“冠军”企业和价值链“链主”企业,加速产业链供应链循环关键环节数字化转型和强化产业链供应链风险响应速度及风险管理能力,促进产业链供应链韧性和安全水平的全面提升。

关键词：产业链供应链武汉产业体系韧性

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网状原角藻与微塑料对典型浮游动物的联合毒性效应

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生态毒理学报 2024年第5期19卷 368-382页

作者：王鹏梁叶南京信息工程大学海洋科学学院南京210044

本研究旨在探究网状原角藻(Protoceratium reticulatum)联合聚苯乙烯微塑料(polystyrene microplastics,PS-MPs),对2种典型浮游动物褶皱臂尾轮虫(Brachionus plicatilis)和日本虎斑猛水蚤(Tigriopus japonicus)生活史特征及生命表参数的联合毒害效应。本实验将网状原角藻与微塑料的联合毒性分别与微塑料单独毒性和网状原角藻单独毒性进行比较,用生活史特征和生命表参数对联合毒性效应进行量化。结果表明,网状原角藻联合PS-MPs对2种浮游动物均产生显著负面影响,2种毒物之间的耦合作用为协同。最高浓度(1×10^(5)cells·mL^(-1))网状原角藻与PS-MPs联合毒性实验组中,日本虎斑猛水蚤种群存活率和繁殖率较同浓度海水小球藻对照组一周均值下降60%~63%和62%~64%,寿命缩短26%~50%,产卵量下降18%,桡足22%的个体运动强度显著下降;生命表参数中,周限增长率(λ)降低10%,世代时间(T)延长10 h,内禀增长率(r_(m))变化不显著,净生殖率(R_(0))下降35%。褶皱臂尾轮虫受抑制程度比日本虎斑猛水蚤强,轮虫种群存活率和繁殖率一周均值下降57%~60%和80%~82%,寿命缩短32%~58%,产卵量下降31%,轮虫40%的个体运动强度显著下降;生命表参数中,λ降低16%,T延长8.3 h,r_(m)变化不显著,R_(0)下降50%。本研究结果可为评估网状原角藻赤潮和微塑料污染对海洋生态系统的危害效应提供参考依据。

关键词：网状原角藻聚苯乙烯浮游动物联合毒性效应

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Mechanical response and dilatancy characteristics of deep marble under different stress paths:A sight from energy dissipation

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Journal of Central South University 2024年第6期31卷 2070-2086页

作者： LIU Xiao-hui HAO Qi-jun zHENG Yu zHANG zhao-peng XUE Yang Key Laboratory of Fluid and Power Machinery Ministry of EducationXihua UniversityChengdu 610039China School of Energy and Power Engineering Xihua UniversityChengdu 610039China College of Water Resource and Hydropower Sichuan UniversityChengdu 610065China State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering Sichuan UniversityChengdu 610065China Southwest Municipal Engineering Design&Research Institute of China Chengdu 610036China MOE Key Laboratory of Deep Earth Science and Engineering Sichuan UniversityChengdu 610065China

Dilatancy is a fundamental volumetric growth behavior observed during loading and serves as a key index to comprehending the intricate nonlinear behavior and constitutive equation structure of *** study focuses on Jinping marble obtained from the Jinping Underground Laboratory in China at a depth of 2400 *** uniaxial and triaxial tests at different strain rates,along with constant confining pressure tests and reduced confining pressure tests under different confining pressures were conducted to analyze the mechanical response and dilatancy characteristics of the marble under four stress ***,a new empirical dilatancy coefficient is proposed based on the energy dissipation *** results show that brittle failure characteristics of marble under uniaxial compression are more obvious with the strain rate increasing,and plastic failure characteristics of marble under triaxial compression are gradually ***,compared to the constant confining pressure,the volume expansion is relatively lower under unloading *** energy dissipation is closely linked to the process of dilatancy,with a rapid increase of dissipated energy coinciding with the beginning of dilatancy.A new empirical dilatancy coefficient is defined according to the change trend of energy dissipation rate curve,of which change trend is consistent with the actual dilatancy response in marble under different stress *** existing empirical and theoretical dilatancy models are analyzed,which shows that the empirical dilatancy coefficient based on the energy background is more universal.

关键词： deep marble stress paths dilatancy energy dissipation empirical dilatancy coefficient

Black holes as the source of dark energy:A stringent test with high-redshift JWST AGNs

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 181-188页

作者： Lei Lei Lei zu Guan-Wen Yuan zhao-Qiang Shen Yi-Ying Wang Yuan-zhu Wang zhen-Bo Su Wen-Ke Ren Shao-peng Tang Hao zhou Chi zhang zhi-Ping Jin Lei Feng Yi-zhong Fan Da-Ming Wei Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China CAS Key Laboratory for Research in Galaxies and Cosmology Department of AstronomyUniversity of Science and Technology of ChinaHefei 230026China

Studies have proposed that there is evidence for cosmological coupling of black holes(BHs)with an index of k≈3;hence,BHs serve as the astrophysical source of dark ***,the data sample is limited for the redshifts of≤*** recent years,the James Webb Space Telescope(JWST)has detected many high-redshift active galactic nuclei(AGNs)and *** the JWST NIRSpec-/NIRCam-resolved AGNs,three are determined to be in early-type host galaxies with a redshift of z~***,their M_(*)and MBH are in tension with the predicted cosmological coupling of black holes with k=3 at a confidence level of~2σ,which challenges the hypothesis that BHs serve as the origin of dark *** work on high-redshift AGNs using the JWST will further assess such a hypothesis by identifying more early-type host galaxies in the higher mass range.

关键词： dark energy supermassive black hole active galactic nuclei James Webb Space Telescope

老年股骨转子间骨折髓内固定术中局部应用凝血酶对术后失血量的影响研究

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中华创伤骨科杂志 2024年第6期26卷 493-498页

作者：何松峡苏炜魏鹏宁波大学附属第一医院整形修复重建外科宁波315010 宁波一院龙山医院医疗健康集团骨科浙江慈溪315300

目的:探讨股骨近端防旋髓内钉(PFNA)固定老年股骨转子间骨折术中局部应用凝血酶对术后失血量的影响。方法:回顾性分析2021年1月至2023年12月期间宁波一院龙山医院医疗健康集团骨科收治的50例股骨转子间骨折患者资料。根据内固定术中局... 详细信息

目的:探讨股骨近端防旋髓内钉(PFNA)固定老年股骨转子间骨折术中局部应用凝血酶对术后失血量的影响。方法:回顾性分析2021年1月至2023年12月期间宁波一院龙山医院医疗健康集团骨科收治的50例股骨转子间骨折患者资料。根据内固定术中局部是否应用凝血酶分为两组:治疗组25例,男9例,女16例;年龄(76.5±10.1)岁;在完成PFNA置入后将6支凝血酶冻干粉溶于60 mL无菌生理盐水,于主钉切口内喷洒30 mL,螺旋刀片切口内喷洒20 mL,远端锁钉切口内喷洒10 mL。对照组25例,男11例,女14例;年龄(71.1±10.1)岁;在完成PFNA置入后用相同剂量的生理盐水冲洗伤口。比较两组患者术后第1、3、7天的血红蛋白(Hb)和红细胞比容(Hct),以及总失血量、隐性失血量、输血率、深静脉血栓形成(DVT)的发生情况等。结果:两组患者术前一般资料及手术时间比较差异均无统计学意义( P>0.05),具有可比性。治疗组患者术后第1、3、7天Hb分别为(101.48±12.15)、(102.96±12.76)、(107.24±13.47)g/L,Hct分别为(0.31±0.03)、(0.32±0.03)、(0.33±0.04),均显著高于对照组患者[(92.72±10.95)、(86.52±7.43)、(91.56±10.24)g/L,(0.28±0.03)、(0.26±0.03)、(0.27±0.03)],差异均有统计学意义( P0.05)。结论:老年股骨转子间骨折PFNA固定术中局部应用凝血酶可明显减少患者术后失血量,且不会增加术后DVT等并发症的发生。

关键词：髋骨折骨折固定术,髓内骨钉手术后出血股骨近端防旋髓内钉

Chinese herbal medicine Ginkgo biloba *** for ischemic stroke:An overview of systematic reviews and meta-analyses

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Journal of Integrative Medicine 2024年第2期22卷 163-179页

作者： Tian-tian Meng Ya-ping You Min Li Jian-bo Guo Xin-bin Song Jing-yi Ding Xiao-long Xie An-qi Li Shang-jin Li Xiang-jun Yin peng Wang zhe Wang Bao-liang Wang Qing-yong He Department of Cardiology Guang'anmen HospitalChina Academy of Chinese Medical SciencesBeijing 100032China Department of Rehabilitation Dongfang HospitalBeijing University of Chinese MedicineBeijing 100071China School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Chinese Medicine the University of Hong KongHong KongChina Graduate School Henan University of Chinese MedicineZhengzhou 450008Henan ProvinceChina Department of Acupuncture and Moxibustion Dongzhimen HospitalBeijing University of Chinese MedicineBeijing 100010China Department of Cardiology Guang’anmen HospitalChina Academy of Chinese Medical SciencesZhengzhou 450008Henan ProvinceChina School of Integrated Traditional Chinese and Western Medicine Southwest Medical UniversityHangzhou 310053Zhejiang ProvinceChina School of Basic Medical Sciences Zhejiang Chinese Medical UniversityHangzhu 310053Zhejang ProvinceChina Department of Neurology the First Affiliated Hospital of Henan University of Chinese MedicineZhengzhou 450003Henan ProvinceChina

Background:Ginkgo biloba ***(GBLPs)are a class of Chinese herbal medicine used in the adjuvant treatment of ischemic stroke(IS).Recently,several systematic reviews(SRs)and meta-analyses(MAs)of GBLPs for IS have been ***:This overview aims to assess the quality of related SRs and *** strategy:Pub Med,Embase,Cochrane Library,Web of Science,Chinese Biological Medicine,China National Knowledge Infrastructure,Wanfang,and Chinese Science and Technology Journals databases were searched from their inception to December 31,*** criteria:SRs and MAs of randomized controlled trials(RCTs)that explored the efficacy of GBLPs for patients with IS were *** extraction and analysis:Two independent reviewers extracted data and assessed the methodological quality,risk of bias(ROB),reporting quality,and credibility of evidence of the included SRs and MAs using A Measurement Tool to Assess Systematic Reviews 2(AMSTAR 2),Risk of Bias in Systematic Reviews(ROBIS),the Preferred Reporting Items for Systematic Reviews and Meta-analyses(PRISMA),and the Grading of Recommendations Assessment,Development and Evaluation(GRADE),***,descriptive analysis and data synthesis were ***:Twenty-nine SRs/MAs involving 119 outcomes were included in this *** overall methodological quality of all SRs/MAs was critically low based on AMSTAR 2,and 28 had a high ROB based on the *** to the PRISMA statement,the reporting items of the included SRs/MAs are relatively *** results based on GRADE showed that of the 119 outcomes,8 were rated as moderate quality,24 as low quality,and 87 as very low *** on the data synthesis,GBLPs used in conjunction with conventional treatment were superior to conventional treatment alone for decreasing neurological function ***:GBLPs can be considered a beneficial supplemental therapy for ***,because of the low quality of the existing eviden

关键词： statement synthesis alone