检索结果-南通市图书馆

Prevalence,Characteristics and Treatment of Knee Osteoarthritis in Urban Residents of Beijing,China:A Community-Based Cross-Sectional Study

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 2024年第4期37卷 418-422页

作者： ZHOU Jun YAN Yan dong Ya Wei LIU Xiao Yu WANG Ping LIN Jia Ming dong Peng xuan QUAN Rui WANG Rong Tian MI Bao Hong CHEN Wei Heng Beijing University of Chinese Medicine Third Affiliated Hospital Beijing 100029China Engineering Research Center of Chinese Orthopaedics and Sports Rehabilitation Artificial Intelligent Ministry of EducationBeijing 100029China Beijing Hepingli Community Health Service Center Beijing 100013China Minimally Invasive Joint Surgery Beijing University of Chinese Medicine Third Affiliated HospitalBeijing 100029China

Knee osteoarthritis(KOA)is a common progressive joint disease with chronic pain and movement disorders as the main clinical features.It is a major public health problem worldwide and it imposes serious medical and economic burdens.KOA accounts for nearly four-fifths of the global Osteoarthritis burden and increases with rising obesity and age[1].There are many reasons for the change in disease prevalence and risk factors,such as urbanization,lifestyle changes,population aging,and sex imbalances.

关键词： Osteoarthritis clinical obesity

维普期刊数据库

Review of 2D Bi2X3（X=S,Se,Te）:from preparation to photodetector

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第6期43卷 2349-2370页

作者： Zhi Zeng dong-Bo Wang xuan Fang Jia-Mu Cao Bing-Ke Zhang Jing-Wen Pan dong-Hao Liu Si-Hang Liu Shu-Jie Jiao Tian-Yuan Chen Gang Liu Lian-Cheng Zhao Jin-Zhong Wang Department of Optoelectronic Information Science School of Materials Science and EngineeringHarbin Institute of Technology Changchun University Science and Technology School of PhysicsThe State Key Laboratory of High Power Semiconductor Lasers School of Astronautics Harbin Institute of Technology Center for High Pressure Science and Technology Advanced Research

Detector has become an indispensable part of human beings.The increasing demand for photodetectors with high performance has promoted the research of novel materials.At the same time,with the development of rising material system,two-dimensional（2D） materials attract a lot of attention,while the suitable option for fabricating photodetector is still limited.The prospering of bismuth chalcogenides injected new vitality for material field,thereinto,the unique topological insulator characteristics make the research on bismuth selenide（Bi2Se3） and bismuth telluride（Bi2Te3） intriguing.2D Bi2X3also exhibits unique features among various 2D materials,of which,the adjustable narrow energy band gap and polarization-sensitive photocurrent contribute to the promising application of high performance and broadband photodetector.In this review,from a bottom-up perspective,we summarize fundamental properties,synthesis method,photodetector performance of 2D Bi2X3based on the previous study,which provide an overall perspective of 2D Bi2X3.Wherein,the section of the photodetector is specifically discu ssed with regard to pure Bi2X3photodetector and heterojunction photodetector.A brief summary and outlook were also explored in the end.

关键词： Bi 2 X 3 Preparation 2D Photodetector

Identification of novel mammalian viruses in tree shrews(Tupaia belangeri chinensis)

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Zoological Research 2024年第2期45卷 429-438页

作者： Hong Zhou Ren-Rong Tian Xiu-Rong Wang Jin-xuan Yang Yun-Xiao Wang Ming-Liang Zhao Xu-dong Zhang Yu-Hua Ma Long-Bao Lv Edward CHolmes Yong-Tang Zheng Wei-Feng Shi School of Clinical and Basic Medical Sciences Shandong First Medical University&Shandong Academy of Medical SciencesJi’nanShandong 250117China Key Laboratory of Emerging Infectious Diseases in Universities of Shandong Shandong First Medical University and Shandong Academy of Medical SciencesTaianShandong 271000China Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common DiseasesCenter for Biosafety Mega-ScienceKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China School of Public Health Shandong First Medical University&Shandong Academy of Medical SciencesJi’nanShandong 250117China National Resource Center for Non-Human Primates Kunming Primate Research CenterKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650107China Sydney Institute for Infectious Diseases School of Medical SciencesThe University of SydneySydneyNew South Wales 2006Australia Department of Infectious Diseases Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China Shanghai Institute of Virology Shanghai Jiao Tong University School of MedicineShanghai 200025China

The Chinese tree shrew(Tupaia belangeri chinensis),a member of the mammalian order Scandentia,exhibits considerable similarities with primates,including humans,in aspects of its nervous,immune,and metabolic systems.These similarities have established the tree shrew as a promising experimental model for biomedical research on cancer,infectious diseases,metabolic disorders,and mental health conditions.Herein,we used metatranscriptomic sequencing to analyze plasma,as well as oral and anal swab samples,from 105 healthy asymptomatic tree shrews to identify the presence of potential zoonotic viruses.In total,eight mammalian viruses with complete genomes were identified,belonging to six viral families,including Flaviviridae,Hepeviridae,Parvovirinae,Picornaviridae,Sedoreoviridae,and Spinareoviridae.Notably,the presence of rotavirus was recorded in tree shrews for the first time.Three viruses-hepacivirus 1,parvovirus,and picornavirus-exhibited low genetic similarity(94%)to known viral strains.Phylogenetic analyses also revealed that the rotavirus and mammalian orthoreovirus identified in this study may be novel reassortants.These findings provide insights into the diverse viral spectrum present in captive Chinese tree shrews,highlighting the necessity for further research into their potential for crossspecies transmission.

关键词： Tree shrew(Tupaia belangeri chinensis) Meta-transcriptomic sequencing Mammalian viruses Genomic analysis

维普期刊数据库博看期刊

Liver chemistries in severe or non-severe cases of COVID-19:A systematic review and meta-analysis

在线全文

学校读者我要写书评

暂无评论

World Journal of Hepatology 2022年第12期14卷 2012-2024页

作者： xuan dong Dan-Yi Zeng Qing-Qing Xing Mei-Zhu Hong Jin-Shui Pan Department of Hepatology The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005Fujian ProvinceChina Department of Traditional Chinese Medicine Mengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhou 350005Fujian ProvinceChina

BACKGROUND Coronavirus disease(COVID-19)patients exhibit different patterns of liver impairment,according to growing evidence.AIM In this study,we sought to provide a comprehensive analysis of liver test parameters in patients with severe and non-severe COVID-19.METHODS We performed a meta-analysis of published liver manifestations and described the liver damage in COVID-19.We searched PubMed,Google Scholar,Embase,Cochrane Library,medRxiv,bioRxiv,and three Chinese electronic databases through April 18,2020,in accordance with the Preferred Reporting Items for Meta-Analyses.We analyzed pooled data on liver chemistries stratified by COVID-19 severity using a fixed or random-effects model.RESULTS A meta-analysis of 56 studies,including 11052 patients,found that the pooled mean alanine aminotransferase(ALT)in severe COVID-19 cases was 35.9 IU/L whereas in non-severe COVID-19 cases was 27.3 IU/L.Average aspa-rtate aminotransferase(AST)levels were 44.3 IU/L in severe cases compared to 27.9 IU/L in non-severe cases.In addition,AST levels are often higher than ALT levels regardless of disease severity.The severe cases tended to have a higher gammaglutamyltransferase level but a lower albumin level than the non-severe cases.CONCLUSION Severe COVID-19 was more likely to be associated with abnormal liver test results.Monitoring liver chemistry closely can help detect disease progression early.

关键词： Systematic reviews and Meta-Analyses COVID-19 SARS-CoV-2 Meta-analysis Liver chemistries Severe

From lab to market:a review of commercialization and advances for binders in lithium-,zinc-,sodium-ion batteries

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research Energy 2024年第1期3卷 152-171页

作者： Chang Su xuan Gao Kejiang Liu Yuhang Dai Haobo dong Yiyang Liu Jiayan Zhu Qiuxia Zhang Hongzhen He Guanjie He Department of Management Technologyand EconomicsETH ZürichZürich 8092Switzerland Christopher Ingold Laboratory Department of ChemistryUniversity College LondonLondon WC1H0AJUK Electrochemical Innovation Lab Department of Chemical EngineeringUniversity College LondonLondon WC1E7JEUK Department of Physics Hong Kong Baptist UniversityHong Kong 999077China State Key Lab of Superhard Materials College of PhysicsJilin UniversityChangchun 130012China

The paper discusses the progress and commercialization of binders for energy storage applications,such as batteries.It explains the role of binders in holding together active materials and current collectors,and highlights the challenges associated with conventional organic solvents in binders.The potential of aqueous binders is introduced as a cost-effective and environmentally friendly alternative.The advantages and limitations of different types of binders are discussed,and the importance of binder selection for optimal battery performance is emphasized.The current state of commercialization of binders is reviewed,and the need for collaboration between researchers,manufacturers,and policymakers to develop and promote environmentally friendly and cost-effective binders is emphasized.The paper concludes by outlining future directions for research and development to further improve the performance and commercialization of binders,while addressing limitations such as lack of standardization,high cost,and long-term stability and reliability.

关键词： battery commercialization binder energy storage

Preface:Heavy metal(loid)s at mining&metallurgical sites:Fate,risk and remediation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Central South University 2024年第4期31卷 1033-1035页

作者：薛生国李楚璇赵东叶吴川 School of Metallurgy and Environment Central South UniversityChangsha 410083China Department of Civil Constructionand Environmental EngineeringSan Diego State UniversitySan DiegoCA 92182USA

The contamination of heavy metal(loid)s at mining&metallurgical sites has been a major environmental challenge worldwide[1].Typically,large amounts of metal(loid)s-bearing wastes are generated at these sites,such as smelting slag,combustion residues,mine tailings,wastewater,and exhaust gas[2].Due to their high mobility in the environment,the released heavy metal(loid)s can easily enter the soil and water environment,posing long-term and widespread threats to ecological and human health[3].

关键词： mining wastewater smelting

维普期刊数据库

MAPK9 as a therapeutic target:unveiling ferroptosis in localized prostate cancer progression

在线全文

学校读者我要写书评

暂无评论

BIOCELL 2024年第5期48卷 771-792页

作者： CHENG-GONG LUO JIAO ZHANG YUN-ZHAO AN xuan LIU SHUAI-JIE LI WEI ZHANG KAI LI XU ZHAO dong-BO YUAN LING-YUE AN WEI CHEN YE TIAN BIN XU Department of Urology Guizhou Provincial People’s HospitalGuiyangChina Department of Urology First Affiliated Hospital of Sun Yat-sen UniversityGuangzhouChina

Background:Ferroptosis,a lipid peroxidation-mediated programmed cell death,is closely linked to tumor development,including prostate cancer(PCa).Despite established connections between ferroptosis and PCa,a comprehensive investigation is essential for understanding its impact on patient prognosis.Methods:A risk model incorporating four ferroptosis-related genes was developed and validated.Elevated risk scores correlated with an increased likelihood of biochemical recurrence(BCR),diminished immune infiltration,and adverse clinicopathological characteristics.To corroborate these results,we performed validation analyses utilizing datasets from both the Cancer Genome Atlas Cohort(TCGA)and the Gene Expression Synthesis Cohort(GEO).Moreover,we conducted further investigations into the pivotal gene identified in our model to explore its impact on tumor characteristics through cell proliferation and invasion assays,as well as animal studies conducted in vivo.Additionally,we conducted further experiments involving ferroptosis-related analysis to validate its association with ferroptosis.Results:The risk model demonstrated exceptional predictive capabilities for prognosis and therapeutic outcomes in PCa patients.Mitogen-activated protein kinase 9(MAPK9)emerged as a crucial gene within the model.In vivo and in vitro experiments explored MAPK9’s role in ferroptosis and its influence on tumor migration and proliferation.Conclusion:The findings provide a novel perspective for advancing ferroptosis exploration in PCa,bridging basic research and clinical applications.

关键词： Ferroptosis Biochemical recurrence Prostate cancer TCGA GEO MAPK9

掺杂Li^(+)的NaGdF_(4)∶Yb^(3+)/Eu^(3+)上转换发光增强及防伪应用

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

光谱学与光谱分析 2024年第2期44卷 497-503页

作者：王翀任仲翾李冬冬佘江波西安邮电大学电子工程学院陕西西安710121 中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室陕西西安710119

稀土发光材料由于其良好的上转换发光性能已经逐渐成为荧光防伪领域的研究热点。首先采用水热法合成了一系列不同Li^(+)掺杂浓度的NaGdF_(4)∶Yb^(3+)/Eu^(3+)晶体,利用X射线衍射(XRD)、扫描电子显微镜(SEM)、上转换发射光谱测试等表征... 详细信息

稀土发光材料由于其良好的上转换发光性能已经逐渐成为荧光防伪领域的研究热点。首先采用水热法合成了一系列不同Li^(+)掺杂浓度的NaGdF_(4)∶Yb^(3+)/Eu^(3+)晶体,利用X射线衍射(XRD)、扫描电子显微镜(SEM)、上转换发射光谱测试等表征方法,对样品的形貌、尺寸和上转换发光性能进行了分析,并选择发光强度和效果最好的晶体应用于防伪识别。实验结果表明,NaGdF_(4)∶Yb^(3+)/Eu^(3+)/Li^(+)的XRD衍射图谱与标准六方相NaGdF4的衍射峰一致,衍射峰尖锐且没有杂峰,证明合成了高纯度高结晶度的NaGdF4∶Yb^(3+)/Eu^(3+)/Li^(+)晶体。晶体的SEM图可以看出生成的样品为纯六方相,分布均匀,无团聚现象。共掺Yb^(3+)/Eu^(3+)/Li^(+)对晶体的结构、形貌、尺寸几乎没有影响。从上转换发射光谱可以看出,15 mol%Li^(+)掺杂的NaGdF4∶Yb^(3+)/Eu^(3+)晶体绿色发光强度是未掺杂Li^(+)的样品的6倍。考察了980 nm激光器的功率变化对未掺杂Li^(+)以及掺杂15 mol%Li^(+)样品的上转换发光性能的影响,发现随着激发功率从0.8 W增加到2.2 W的过程中,上转换发光强度逐渐增强。拟合后得到样品上转换过程中的所需光子数n值接近于2,为双光子发光过程。对NaGdF4∶Yb/Eu/Li进行了荧光寿命测试,5D_(1)能级的荧光寿命是未掺杂的1.4倍。最后,将形貌均匀、发光强度强的NaGdF_(4)∶0.2Yb/0.02Eu/0.15Li制成防伪油墨,通过丝网印刷技术在纸张、玻璃、塑料等材料上印刷荧光防伪图案。在980 nm激光的泵浦下,防伪图案发出明亮的绿光。在自然环境下,纸张上的防伪图案有很好的隐蔽性。图案中的“safe”字样长度为5.5 mm,字母间距为0.5 mm,在980 nm激光的泵浦下,仍然可以分辨清楚。将印制有防伪图案的塑料暴露在室外自然环境下一个月,图案没有明显改变。表明NaGdF_(4)∶0.2Yb/0.02Eu/0.15Li制成的防伪图案分辨率高,易于识别,受环境影响小,在防伪识别方面具有良好的应用前景。

关键词：上转换发光稀土掺杂荧光光谱防伪识别丝网印刷

维普期刊数据库

Low lighting image enhancement using local maximum color value prior

在线全文

学校读者我要写书评

暂无评论

Frontiers of Computer Science 2016年第1期10卷 147-156页

作者： xuan dong Jiangtao WEN Department of Computer Science and Technology Tsinghua University Beijing 100084 China

We study the problem of low lighting image en- hancement. Previous enhancement methods for images un- der low lighting conditions usually fail to consider the factor of image degradation during image formation. As a result, the lost contrast could not be recovered after enhancement. This paper will adaptively recover the contrast and adjust the exposure for low lighting images. Our first contribution is the modeling of image degradation in low lighting con- ditions. Then, the local maximum color value prior is pro- posed, i.e., in most regions of well exposed images, the lo- cal maximum color value of a pixel will be very high. By combining the image degradation model and local maximum color value prior, we propose to recover the un-degraded im- ages under low lighting conditions. Last, an adaptive expo- sure adjustment module is proposed to obtain the final result. We show that our approach enables better enhancement com- paring with popular image editing tools and academic algo- rithms.

关键词： low lighting enhancement image degradationmodel