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Incidence and warning signs for complications of human brucellosis: a multi-center observational study from China

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Infectious Diseases of Poverty 2024年第1期13卷 53-62页

作者： qing-Nan Shi Hui-Jie Qin Qiao-shan Lu hu Li Zhong-Fa Tao Meng-Guang Fan Mu-Heta Aishan Zeng-Qiang Kou Qiu-Lan Chen Wen-Wu Yin Yan-Ping Zhang National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases Chinese Center for Disease Control and PreventionChangbai RoadChangping DistrictBejing 102206China School of Public Health Guangxi Medical UniversityNanningChina Nanning Center for Disease Control and Prevention NanningChina Guizhou Center for Disease Control and Prevention GuiyangChina Inner Mongolia Center for Disease Control and Prevention HohhotChina Xinjiang Uighur Autonomous Region Center for Disease Control and Prevention UrumqiChina shandong Center for Disease Control and Prevention JinanChina

Background Brucellosis is a severe zoonotic disease that is often overlooked, particularly in impoverished countries. Timely identification of focal complications in brucellosis is crucial for improving treatment outcomes. However, there is currently a lack of established indicators or biomarkers for diagnosing these complications. Therefore, this study aimed to investigate potential warning signs of focal complications in human brucellosis, with the goal of providing practical parameters for clinicians to aid in the diagnosis and management of *** A multi-center cross-sectional study was conducted in China from December 2019 to August 2021. The study aimed to investigate the clinical characteristics and complications of patients with brucellosis using a questionnaire survey and medical record system. The presence of warning signs for complications was assessed using univariate and multivariate logistic regression models. Receiver operating characteristic (ROC) curves and the area under the curve (AUC) were used for variable screening and model *** A total of 880 participants diagnosed with human brucellosis were enrolled. The median age of the patients was 50 years [interquartile range (IQR): 41.5-58.0], and 54.8% had complications. The most common organ system affected by complications was the osteoarticular system (43.1%), with peripheral arthritis (30.0%), spondylitis (16.6%), paravertebral abscess (5.0%), and sacroiliitis (2.7%) being the most prevalent. Complications in other organ systems included the genitourinary system (4.7%), respiratory system (4.7%), and hematologic system (4.6%). Several factors were found to be associated with focal brucellosis. These factors included a long delay in diagnosis [odds ratio (OR) = 3.963, 95% confidence interval(CI): 1.906-8.238 for > 90 days], the presence of underlying disease (OR = 1.675, 95%CI: 1.176-2.384), arthralgia (OR = 3.197, 95%CI: 1.986-5.148), eye bulging pain (OR = 3.482, 95%CI:

关键词： Brucellosis Complications Clinical spectrum Warning signs

Ca改性生物炭对土壤磷赋存形态影响及稳定化机制

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环境科学 2024年第2期45卷 983-991页

作者：张超翟付杰单保庆中国科学院生态环境研究中心环境水质学国家重点实验室北京100085 中国科学院大学北京100049

针对湖库周边农田淹没后土壤磷释放风险控制的问题,采用共热解法制备Ca改性生物炭(Ca-BC),通过X射线光电子能谱分析(XPS)、X射线多晶粉末衍射分析(XRD)、吸附实验和模拟培养实验等,进行Ca-BC对土壤磷赋存形态影响和稳定化机制研究.结果... 详细信息

针对湖库周边农田淹没后土壤磷释放风险控制的问题,采用共热解法制备Ca改性生物炭(Ca-BC),通过X射线光电子能谱分析(XPS)、X射线多晶粉末衍射分析(XRD)、吸附实验和模拟培养实验等,进行Ca-BC对土壤磷赋存形态影响和稳定化机制研究.结果表明,Ca-BC吸附磷的过程符合Langmuir(R^(2)=0.940)和一级吸附动力学模型(R^(2)=0.961),表明该吸附过程为化学作用主导的单层吸附,最大吸附量达到267.93 mg·g^(-1).模拟培养实验表明,当Ca-BC添加量为1%时,土壤中较活跃性的交换态磷形态从7.42%下降至4.59%.XRD结果表明,Ca-BC吸附磷后出现Ca_(3)(PO_(4))_(2)和Ca_(5)(PO_(4))_(3)(OH)吸收峰,证明磷酸盐在生物炭表面形成较稳定的晶体沉淀.XPS分析表明,生物炭表面羰基官能团参与磷固定过程,提高了生物炭对磷的吸附能力.总体来讲,CaBC添加量大于1%时,对磷的释放有较好的固定能力,具备对土壤磷释放控制的潜在应用价值.

关键词：改性生物炭土壤新增淹没区磷酸盐赋存形态

COMPARISON OF DIFFERENT ANALYSIS METHODS FOR MULTI-SUPPORT SEISMIC EXCITATION OF LARGE-SPAN STRUCTURES

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COMPARISON OF DIFFERENT ANALYSIS METHODS FOR MULTI-SUPPORT S...

Crust and Upper Mantle Density Structures beneath the Eastern Tianshan Region and Its Tectonic Implications

International Symposium on New Olympics New Shell and Spatial Structures

作者： Wen-Hua LIU qing-shan yang Postgraduate School of Civil Engineering & Architecture Beijing Jiaotong University 100044 China Professor School of Civil Engineering & Architecture Beijing Jiaotong University 100044 China

＜正＞1. Introduction There are two different analysis models of structure under seismic in time-history analysis method. In the first model, the displacement time-history is putted as the ground excitation of structure, and the dynamic equation is derived according to the displacement of ground motion in the absolute coordinate. On the second model, the acceleration time-history is putted as the ground excitation of structure, and the dynamic equation is derived according to the acceleration of ground motion in the absolute coordinate

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Journal of Earth Science 2024年第3期35卷 828-838页

作者： Yiming Liu Chao Chen qing Liang Zhengwang Hu Hubei Subsurface Multi-Scale Imaging Key Laboratory School of Geophysics and GeomaticsChina University of GeosciencesWuhan 430074China

The deformation mechanisms of the Tianshan orogenic belt(TOB)are one of the most important unresolved issues in the collision of the Indian and Eurasian *** better understand the lithospheric deformation of the eastern Tianshan orogenic belt,we combined the S-wave tomography and gravity data to develop a three-dimensional(3D)density model of the crust and upper mantle beneath the eastern Tianshan *** show that the crust of the eastern Tianshan is mainly characterized by positive density anomalies,revealing widespread subduction-related magmatism during the *** however have also observed extensive low-density anomalies beneath the eastern Tianshan at depths deeper than~100 km,which is likely linked to a relatively hot *** most fundamental differences of the lithosphere within the eastern Tianshan occur in the uppermost *** uppermost mantle layers in the Bogda shan and Harlik shan are relatively *** is likely associated with an eclogite body in the uppermost *** most significant negative anomaly of the uppermost mantle is however found in the Jueluotage tectonic belt and the central Tianshan Block and is possibly associated with depleted mantle *** suggest that these differences related to compositional changes may control the strength of the lithospheric mantle and have affected the uplift of the northern and southern segments of the eastern Tianshan after the Permian.

关键词： constrained inversion gravity anomaly three-dimensional lithospheric density structure eastern Tianshan geodynamics geophysics.

含Y型组合节理花岗岩单轴压缩破坏机理及声发射特征

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东北大学学报（自然科学版） 2024年第4期45卷 564-572页

作者：张鹏海马庆山刘溪鸽杨天鸿东北大学资源与土木工程学院辽宁沈阳110819

利用劈裂法在花岗岩试件中预制不同倾角的Y型组合节理,进行单轴压缩实验,分析组合节理倾角对破坏模式、峰值强度、表面变形场、声发射能量释放特征的影响,探究不同破坏模式下的破坏机理.实验结果表明:1)含Y型组合节理岩石随节理倾角变... 详细信息

利用劈裂法在花岗岩试件中预制不同倾角的Y型组合节理,进行单轴压缩实验,分析组合节理倾角对破坏模式、峰值强度、表面变形场、声发射能量释放特征的影响,探究不同破坏模式下的破坏机理.实验结果表明:1)含Y型组合节理岩石随节理倾角变化呈现整体破坏、楔形体弹射破坏和沿主节理面破坏三种主要模式;2)组合节理夹角、主节理倾角均与岩石强度具有负相关关系;3)破坏模式从整体破坏转变到弹射破坏、沿主节理破坏时,滑移变形集中区域由次节理向主节理转变,AE高能级事件诱发原因由主、次节理压密及滑移错动向主节理压密及滑移错动转变;4)随主节理倾角的不断增大,主节理面上释放的能量更高、能量的分布更加不均匀.

关键词：组合节理破坏模式强度变形场声发射

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Introducing hydroxyl groups to tailor the d-band center of Ir atom through side anchoring for boosted ORR and HER

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Journal of Energy Chemistry 2024年第3期90卷 144-151,I0005页

作者： qing Lv Meiping Li Xiaodong Li Xingru Yan Zhufeng Hou Changshui Huang Science Center for Material Creation and Energy Conversion School of Chemistry and Chemical EngineeringInstitute of Frontier and Interdisciplinary ScienceShandong UniversityJinan 250100ShandongChina Institute of Chemistry Chinese Academy of ScienceBeijing 100191China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002FujianChina

Tuning the coordination atoms of central metal is an effective means to improve the electrocatalytic activity of atomic ***,iridium(Ir) is proposed to be asymmetrically anchored by sp-N and pyridinic N of hydrogen-substituted graphdiyne(HsGDY),and coordinated with OH as an Ir atomic catalyst(Ir_(1)-N-HsGDY).The electron structures,especially the d-band center of Ir atom,are optimized by these specific coordination ***,the as-synthesized Ir_(1)-N-HsGDY exhibits excellent electrocatalytic performances for oxygen reduction and hydrogen evolution reactions in both acidic and alkaline *** from the unique structure of HsGDY,IrN_(2)(OH)_(3) has been developed and demonstrated to act as the active site in these electrochemical *** those indicate the fresh role of the sp-N in graphdiyne in producing a new anchor way and contributing to promote the electrocatalytic activity,showing a new strategy to design novel electrochemical catalysts.

关键词： Oxygen reduction reaction D-band center Graphdiyne Hydroxyl group Electrocatalysis

下击暴流风冲击作用下输电塔非平稳动力响应的频域方法

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工程力学 2024年第8期41卷 152-163页

作者：汪大海王国强王昕孙启刚杨庆山黄国庆杨军永武汉理工大学土木工程与建筑学院武汉430070 武汉市工程建设执法稽查站武汉430024 同圆设计集团股份有限公司济南250101 国网山东省电力公司经济技术研究院济南250000 重庆大学土木工程学院重庆400045 国网山东省电力公司莱芜供电公司济南250000

下击暴流是强对流天气下的一种局地极端风,具有尺度小、风速大、突发性等特点,是导致输电线路风灾破坏的主要原因之一。开展下击暴流风冲击作用下输电塔风振响应的计算理论研究具有重要的意义。论文依据时变平均风和非平稳脉动风场的理... 详细信息

下击暴流是强对流天气下的一种局地极端风,具有尺度小、风速大、突发性等特点,是导致输电线路风灾破坏的主要原因之一。开展下击暴流风冲击作用下输电塔风振响应的计算理论研究具有重要的意义。论文依据时变平均风和非平稳脉动风场的理论模型,给出移动下击暴流冲击风荷载在时域及频域表达式;继而基于随机振动理论,推导建立了输电杆塔非平稳脉动风振响应的频域解析方法,再通过首次超越极值理论,给出了非平稳下击暴流作用下输电杆塔响应极值的精确分布。进一步,论文探讨了将原有不同步非平稳下击暴流脉动风激励视为同步且慢变过程近似结果的精确性,并在此基础上提出了平稳等效的极值分布和峰值因子的实用简化计算方法。论文采用随机样本的有限元瞬态动力分析结果,检验了上述频域理论方法的精确性。研究表明:该文提出的非平稳响应极值分布的理论解精确性高、同步慢变激励简化得到的等效平稳方法计算便捷且结果略偏保守。该文研究为推动建立输电杆塔抗下击暴流设计体系提供了计算理论基础和技术支撑。

关键词：下击暴流输电塔非平稳脉动风频域响应极值分布

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揭示氨对正己酸生产影响的机制——影响途径、关键酶和微生物

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Engineering 2024年第4期35卷 180-190页

作者： qing-Lian Wu Ke-Xin Yuan Wei-Tong Ren Lin Deng Hua-Zhe Wang Xiao-Chi Feng He-shan Zheng Nan-Qi Ren Wan-Qian Guo State Key Laboratory of Urban Water Resource and Environment Harbin Institute of TechnologyHarbin 150090China College of Architecture and Environment Sichuan UniversityChengdu 610065China State Key Laboratory of Urban Water Resource and Environment School of Civil and Environmental EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen 518055China College of Chemistry and Chemical Engineering Qiqihar UniversityQiqihar 161006China

n-Caproate,which is produced via chain elongation(CE)using waste biomass,can supply various fossilderived products,thus advancing the realization of carbon *** released from the degradation of nitrogen-rich waste biomass can act as a nutrient or an inhibitor in anaerobic bioprocesses,including CE,with the distinction being primarily dependent on its ***,the optimal concentration of ammonia and the threshold of toxicity for open-culture n-caproate production using ethanol as an electron donor,along with the underlying mechanisms,remain *** study revealed that the optimal concentration of ammonia for n-caproate production was 2.0 g∙L^(-1),whereas concentrations exceeding this threshold markedly suppressed the CE *** of the mechanism revealed the involvement of two forms of ammonia(i.e.,ammonium ions and free ammonia)in this inhibitory *** ammonia levels(5.0 g∙L^(-1))induced excessive ethanol oxidation and suppressed the reverse β-oxidation(RBO)process,directly leading to the enhanced activities of enzymes(phosphotransacetylase and acetate kinase)responsible for acetate formation and diminished activities of butyryl-coenzyme A(CoA):acetyl-CoA transferase,caproyl-CoA:butyryl-CoA transferase,and caproyl-CoA:acetyl-CoA transferase that are involved in the syntheses of n-butyrate and ***,the composition of the microbial community shifted from Paraclostridium dominance(at 0.1 g∙L^(-1)ammonia)to a co-dominance of Fermentimonas,Clostridium sensu stricto 12,and Clostridium sensu stricto 15 at 2.0 g∙L^(-1)***,these CE-functional bacteria were mostly absent in the presence of excessive ammonia(5.0 g∙L^(-1)ammonia).Metagenomic analysis revealed the upregulation of functions such as RBO,fatty acid synthesis,K^(+)efflux,adenosine triphosphatase(ATPase)metabolism,and metal cation export in the presence of 2.0 g∙L^(-1)ammonia,collectively contributing to enhanced n-caproate produc

关键词： Ammonia inhibition Medium chain fatty acids n-Caproate Enzyme Metagenomics

江西萍乡赣语“等”的多功能用法及其语法化演变

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湘潭大学学报（哲学社会科学版） 2024年第3期48卷 143-151页

作者：袁鑫陈山青湘潭大学文学与新闻学院湖南湘潭411105

江西萍乡赣语中的“等”具有多功能性,除了存在普通话和汉语方言中相同的实词和时间指示词、被动介词用法外,还发现有给予义动词、处置介词和置换假设标记等三种特殊用法,前两种鲜见于汉语方言,后一种则是首次报道。“等”的语法化源头... 详细信息

江西萍乡赣语中的“等”具有多功能性,除了存在普通话和汉语方言中相同的实词和时间指示词、被动介词用法外,还发现有给予义动词、处置介词和置换假设标记等三种特殊用法,前两种鲜见于汉语方言,后一种则是首次报道。“等”的语法化源头是等待义动词,由等待义发展出允让义的直接动因和机制是“等待-让渡”的隐喻认知,语义演变阶段中的使役义、给予义动词,以及被动、处置介词和置换假设标记用法都直接或间接从允让义发展而来。

关键词：萍乡赣语 “等” 给予义被动-处置介词置换假设标记语法化