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Functional strategies and distribution of climbing plant communities in different vegetation patches in a subtropical dry forest, central Argentina

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Journal of plant Ecology 2019年第1期12卷 23-33页

作者： María Cecilia Ferrero sebastián R.Zeballos juan I.Whitworth-Hulse Melisa A.Giorgis Diego E.Gurvich Instituto Multidisciplinario de Biología Vegetal CONICET-Universidad Nacional de CórdobaAv.Vélez Sársfield 1611CP X5016ZAACórdobaArgentina Facultad de Ciencias Exactas Físicas y NaturalesUniversidad Nacional de CórdobaAv.Vélez Sársfield 299CP X5000JJCCórdobaArgentina

Aims In the context of global change,the impacts of forest structure alter-ation on climbing plants in extra-tropical ecosystems are poorly *** also remains little explored,the functional strategies among climbing plant species and its relationship with the local-scale distribution of climbing plant ***,we aimed at three goals:(i)we studied how climbing plant community com-position responds to the modification of the original forest structure in a subtropical dry forest;(ii)we characterized climbing plant spe-cies according to functional traits related to the acquisition and use of resources;and(iii)we examined whether functional strategies at the community level are also responding to vegetation structure change,a much less addressed topic in the ecology of climbing *** The study was carried out in the Chaco forest of Córdoba Mountains,central *** selected 18 patches of‘native forests’,‘shrublands’and‘Ligustrum lucidum forests’.We counted and identified climbing plant individuals in each patch,including woody and herbaceous *** each spe-cies,we measured 10 functional traits:leaf area,leaf area ratio,leaf dry matter content,leaf tensile strength,specific leaf area,stem density,wood saturated water content,inter-node length,petiole length and plant *** compared climbing plant composition,richness and abundance among the three vegeta-tion ***,we assessed trends of functional variation of climbing plant species by performing a principal component ***,we investigated whether simple mean,weighted mean and Functional Richness index of principal component analysis(pCA)axes differed among the climbing plant communi-ties of the three vegetation *** Findings Multivariate analysis revealed that climbing plant composition of native forests significantly differed from that of shrublands and *** ***,*** forests had the lowest climb-ing plant species *** var

关键词： vines functional traits Chaco serrano climbing plant species richness community weighted means

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基于信息化平台的高值耗材全过程管理模式

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北京生物医学工程 2024年第5期43卷 513-519页

作者：徐令仪王娟王亚琴东部战区总医院库房管理科南京210002 东部战区总医院医学工程科南京210002

目的探索高值耗材管理新方法,以解决高值耗材管理模式存在的需求无计划、验收无标准、流程无监管、数据少记录的问题。方法以物资管理系统为基础信息平台,建立基于信息化平台的高值耗材全过程管理模式。然后对比东部战区总医院144个科... 详细信息

目的探索高值耗材管理新方法,以解决高值耗材管理模式存在的需求无计划、验收无标准、流程无监管、数据少记录的问题。方法以物资管理系统为基础信息平台,建立基于信息化平台的高值耗材全过程管理模式。然后对比东部战区总医院144个科室二级库在实施管理新模式前后的耗材过期率、紧急采购计划率、账物相符率、耗材追溯率和科室满意度。结果基于信息化平台的高值耗材全过程管理模式实现了高值耗材的全流程数据追踪,完成高值耗材“科室需求—采购—配送—验收入库—科室二级库管理—使用—结算”的全过程监管。该方法实施一年后,耗材过期率由0.85%降至0,紧急采购计划率由45.78%降至1.24%,账物相符率由78.71%升至98.46%。该方法实施前,仅5个科室二级库做到耗材数据记录详实,高值耗材数据可追溯,占全院总科室3.4%。该方法实施后耗材数据追溯率达100%。该方法实施前,科室对高值耗材管理的满意度为57.81%,该方法实施初,满意度降为24.22%,一年后回升至89.76%。结论应用基于信息化平台的全过程管理方法后,高值耗材过期、缺货、错收费、账务不相符、流程不可追溯等情况得到显著改善。

关键词：高值耗材信息化管理全流程追溯条码管理二级库管理

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3种方法单独及联合诊断甲状腺微小结节的价值比较

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实用临床医药杂志 2024年第4期28卷 19-24页

作者：邵春晖姜珏周琦王娟陕西省宝鸡市人民医院陕西宝鸡721000 西安交通大学第二附属医院医用超声研究室陕西西安710004

目的比较二维高频超声、声脉冲辐射力成像(ARFI)-声触诊组织定量(VTQ)技术及应变弹性成像3种方法单独及联合诊断甲状腺微小结节良恶性的价值。方法回顾性分析2021年6月—2023年6月在陕西省宝鸡市人民医院就诊的99例(107个甲状腺微小... 详细信息

目的比较二维高频超声、声脉冲辐射力成像(ARFI)-声触诊组织定量(VTQ)技术及应变弹性成像3种方法单独及联合诊断甲状腺微小结节良恶性的价值。方法回顾性分析2021年6月—2023年6月在陕西省宝鸡市人民医院就诊的99例(107个甲状腺微小实性结节)结节直径≤10.0 mm患者的临床资料,均采用二维高频超声、ARF-VTQ技术及应变弹性成像进行检查,获得超声资料评分及数据,以穿刺活检和手术病理结果为诊断“金标准”,比较3种超声检查方法单独及联合应用对甲状腺微小结节的诊断效能。结果 62例患者(共68个结节)选择FnAB,37例患者(共39个结节)选择手术。107个甲状腺微小结节中,诊断为恶性微小结节45个,良性微小结节62个。恶性微小结节与良性微小结节相比,结节内回声(等回声和高回声、极低回声和低回声)、边界、微钙化、纵横比>1及血供情况和供血动脉阻力指数(RI)比较,差异均有统计学意义(ps积分临界值≥2分(C-TIRADs 4b)时,诊断灵敏度为73.33%,特异度为79.03%,曲线下面积[AUC(95%CI)]为0.762(95%CI:0.670~0.839);ARFI-VTQ技术中,107个甲状腺微小结节sWV测值为0.52~7.55 m/s,平均(2.62±0.61)m/s,其中24个实性结节多次出现×.××m/s,最后测值以7.55 m/s记录。恶性微小结节sWV均值为(5.24±2.23) m/s,高于良性微小结节的(2.11±0.70) m/s,差异有统计学意义(t=10.258,psWV临界值为3.19 m/s时,诊断灵敏度为77.78%,特异度为80.65%,AUC(95%CI)为0.792(95%CI:0.703~0.865);应变弹性成像检查中,当评分临界值≥3分时,诊断的灵敏度为75.56%,特异度为77.42%,AUC(95%CI)为0.765(95%CI:0.673~0.841)。三者联合应用诊断的阳性微小结节为44个,阴性微小结节63个,诊断灵敏度为93.33%,特异度为96.77%,AUC(95%CI)为0.951(95%CI:0.891~0.983)。三者联合诊断效能与二维高频超声检查、ARFI-VTQ、应变弹性成像单独检测比较,差异均有统计学意义(Z=4.861、4.393、4.842,p<0.05)。结论二维高频超声联合ARFI-VTQ技术及应变弹性成像可提高甲状腺微小结节良恶性的诊断准确性。

关键词：二维高频超声声脉冲辐射力成像-声触诊组织定量应变弹性成像甲状腺微小结节联合诊断

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Investigation on One-Dimensional Loss Models for predicting performance of Multistage Centrifugal Compressors in supercritical CO Brayton Cycle

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Journal of Thermal science 2021年第1期30卷 133-148页

作者： sHAO Wenyang DU juan YAnG Jinguang WAnG Xiaofang LYU Guochuan school of Energy and power Engineering Dalian University of TechnologyDalian 116024China Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing 100190China

The main compressor in a supercritical carbon dioxide(sCO2)Brayton cycle works near the critical point where the physical properties of CO_(2)are far away from the ideal *** investigate the effectiveness of the conventional one-dimensional(1D)loss models for predicting the performance of compressors working in such nontraditional conditions,detailed comparisons of 1D predicted performance,experimental data and threedimensional CFD results are made.A 1D analysis method with enthalpy and total pressure based loss system is developed for multistage sCO2 centrifugal compressors,and it is firstly validated against the experimental results of a single stage sCO2 centrifugal compressor from the sandia national Laboratory.A good agreement of pressure ratios with experiments can be achieved by the 1D *** the efficiency deviations reveal the potential deficiencies of the parasitic loss *** the basis of the validation,a two-stage sCO2 centrifugal compressor is employed to do the ***-dimensional CFD simulations are *** comparisons are made between the CFD and the 1D results at different stations located in the *** features of the deviations are analyzed in detail,as well as the reasons that might cause these deviations.

关键词： supercritical carbon dioxide Brayton cycle centrifugal compressor one-dimensional performance analysis loss model three-dimensional CFD simulation

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Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

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Frontiers of Chemical science and Engineering 2022年第1期16卷 34-63页

作者： Lei Zhou Yu Chen Baihao shao juan Cheng Xin Li Collaborative Innovation Center of Yangtze River Delta Region Green pharmaceuticals Zhejiang University of TechnologyHangzhou 310014China College of pharmaceutical sciences Zhejiang UniversityHangzhou 310058China

H_(2)s is well-known as a colorless,acidic gas,with a notoriously rotten-egg *** was recently revealed that H_(2)s is also an endogenous signaling molecule that has important biological functions,however,most of its physiology and pathology remains ***,the enthusiasm for H_(2)s research *** imaging technology is an important tool for H_(2)s biology *** development of fluorescence imaging technology has realized the study of H_(2)s in subcellular organelles,facilitated by the development of fluorescent *** probes reviewed in this paper were categorized according to their chemical mechanism of sensing and were divided into three groups:H_(2)s reducibility-based probes,H_(2)s nucleophilicity-based probes,and metal sulfide precipitation-based *** structure of the probes,their sensing mechanism,and imaging results have been discussed in ***,we also introduced some probes for hydrogen polysulfides.

关键词： hydrogen sulfide fluorescent probe reducibility nucleophilicity copper sulfide precipitate hydrogen polysulfides

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Research on Cognitive Cooperation in Multi-Agent systems

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Wuhan University Journal of natural sciences 2006年第1期11卷 278-282页

作者： sUn juan DOU Wan-chun state Key Laboratory for novel software Technology Nanjing University Nanjing 210093 JiangsuChina Department of Computer science and Technology Nanjing University Nanjing 210093Jiangsu China

The accomplishment of a complex problem usually involves cooperation between participators with different knowledge background concerned. This paper identifies interdependency between different sub problems （through problem decomposition） as the major factor that influences cooperative relations in multi-Agent systems, based on which we propose an efficient means to measure cooperation coefficient （degree） between different Agents. Then cognitive cooperation between Agents is analyzed which aims at collecting the wisdom of the cognitive community for a systematic solution to the overall problem.

关键词： multi-Agent systems cognitive cooperation knowledge flow

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靶向B7-H3抑制人脐静脉血管内皮细胞生长、迁移和血管形成

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中国药理学通报 2024年第7期40卷 1311-1316页

作者：刘宇王南楠牛可凌惠娟朱亚玉胡伟陈礼文安徽医科大学第二附属医院检验科安徽合肥230601 安徽医科大学第二附属医院临床药物实验中心安徽合肥230601 安徽医科大学第二附属医院输血科安徽合肥230601

目的探讨靶向抑制协同信号分子B7-H3对人脐静脉血管内皮细胞(human umbilical vein endothelial cells,HUVECs)生长、迁移及血管生成能力影响。方法使用小干扰RnA(small interfering RnA,siRnA)敲减HUVECs B7-H3分子,采用CCK-8实验检测24 h、48 h和72 h细胞增殖;采用Transwell实验检测24 h细胞迁移;三维细胞培养观察细胞血管生成。结果与空序列转染的阴性对照(siRnA-Control)组比较,siRnA-720、siRnA-1707和siRnA-16903条备选siRnA对B7-H3表达的抑制效果不同,siRnA-1690抑制率明显高于siRnA-720和siRnA-1707,因此,选择使用siRnA-1690序列进行后续实验。CCK-8细胞活力实验结果显示,敲减B7-H3后24 h、48 h和72 h HUVECs增殖能力分别下降24%、22%(p>0.05,与24 h比较)和15%(pnswell迁移实验表明,与siRnA-Control组对比,敲减B7-H3的HUVECs 24 h迁移能力明显减低(psi-B7-H3敲减B7-H3基因后,HUVECs血管生成能力明显下降(ps生长、迁移及血管生成。

关键词：协同信号分子血管生成靶向药物小干扰RnA 人脐静脉血管内皮细胞细胞迁移

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区域性中心城市动画产业发展的微观机理——以徐州市为例

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江苏师范大学学报（自然科学版） 2024年第2期42卷 23-28页

作者：尹娟孟召宜吴怡萌张澳江苏师范大学地理测绘与城乡规划学院江苏徐州221116

动画产业是区域性中心城市文化传承和创意产业发展的重要抓手.以徐州市典型动画企业为例,对区域性中心城市动画产业的发展过程、阶段特征、产业特征进行梳理,揭示它发展的微观机理.研究发现:区域性中心城市动画产业具有低量高质、相对... 详细信息

动画产业是区域性中心城市文化传承和创意产业发展的重要抓手.以徐州市典型动画企业为例,对区域性中心城市动画产业的发展过程、阶段特征、产业特征进行梳理,揭示它发展的微观机理.研究发现:区域性中心城市动画产业具有低量高质、相对滞后、立足本土的特色;发展动力具有鲜明的多元性,即多元政策形成成长的转型环境、多样人才形成内生的能动力量、多重联动形成持续发展的市场手段、多维技术形成高质的保障体系.今后,应数量质量并重以优质发展,突破同质化以特色发展,延伸动画衍生产业链以提升发展.

关键词：区域性中心城市动画产业微观机理多元化战略

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Electrochemical behavior of gold and its associated minerals in alkaline thiourea solutions

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International Journal of Minerals,Metallurgy and Materials 2018年第7期25卷 737-743页

作者： he zhou yong-sheng song wen-juan li kun song national engineering laboratory of biohydrometallurgy grimat engineering institute co.ltdbeijing 101407China school of chemical&environmental engineering china university of mining&technologybeijing 100083China

Electrochemical measurements were conducted to study the electrochemical behavior of gold （Au） and its commonly associated minerals in alkaline thiourea solutions. The results indicated that without addition of any stabilizer, selective dissolution of Au from stibnite and pyrite was only possible at relatively low thiourea concentrations. As na2siO3 was added, pyrite started to become active and an oxida- tion peak appeared; the oxidation peaks of axsenopyrite and chalcocite appeared earlier thaxl that of Au. The chalcocite peak shifted in the positive direction and the peak current increased. stibnite did not show an oxidation peak and its current was nearly zero. Adding na2siO3 favored the selective dissolution of Au when its minerals were associated with chalcocite and stibinte. At pH 12, the Au anode dissolution peak current increased with stabilizer concentration. At 0.38 and 0.42 V and for na2siO3 concentration below 0.09 M, the current density continuously increased with na2siO3 concentration. The na2siO3 concentration had to be adequate to stabilize thiourea. When the potential was higher than 0.42 V, the surface of the Au electrode started to passivate. With an additional increase in potential, the presence of na2siO3 could not stop the inevitable decomposition of thiourea.

关键词： alkaline daiourea Au associated mineral na2siO3 electrochemical behavior

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Minimally invasive open reduction of greater tuberosity fractures by a modified suture bridge procedure

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World Journal of Clinical Cases 2022年第1期10卷 117-127页

作者： Ling-peng Kong juan-juan Yang Fu Wang Fan-Xiao Liu Yong-Liang Yang Department of Orthopaedics Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250021Shandong ProvinceChina Department of Radiotherapy Shandong Cancer Hospital and InstituteShandong First Medical University and Shandong Academy of Medical SciencesJinan 250117Shandong ProvinceChina

BACKGROUnD Most greater tuberosity fractures can be treated without surgery but some have a poor *** surgical procedures for avulsion fractures of the humeral greater tuberosity include screw fixation,suture anchor fixation,and plate fixation,all of which have treatment-associated *** decrease surgical complications,we used a modified suture bridge procedure under direct vision and a minimally invasive small incision to fix fractures of the greater tuberosity of the *** To investigate the clinical efficacy and outcomes of minimally invasive modified suture bridge open reduction of greater tuberosity evulsion *** sixteen patients diagnosed between January 2016 and January 2019 with an avulsion-type greater tuberosity fracture of the proximal humerus and treated by minimally invasive open reduction and modified suture bridges with anchors were studied *** were followed up by clinical examination and radiographs at 3 and 6 wk,3,6 and 12 mo after surgery,and thereafter every 6 *** were assessed preoperatively and postoperatively by a visual analog scale(VAs),the University of California Los Angeles(UCLA)shoulder score,the American shoulder and Elbow surgeon score(AsEs),and range of motion(ROM)for *** seven men and nine women,with an average age of 44.94 years,were *** time between injury and surgery was 1-2 d,with an average of 1.75 *** mean operation time was 103.1±7.23 *** patients achieved bone union within 3 mo after *** scores were significantly decreased(p=0.002),and the mean degrees of forward elevation(p=0.047),mean degrees of abduction(p=0.035),AsEs score(p=0.092)were increased at 3 *** UCLA score was increased at 6 wk(p=0.029)after *** average degrees of external rotation and internal rotation both improved at 3 mo after surgery(p=0.012 and p=0.007,respectively).no procedure-related deaths or incision-related superficial or deep tissue infectio

关键词： Minimally invasive Greater tuberosity fracture Open reduction suture bridge Anchor

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