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The effect of temperature changes and K supply on the reproduction and growth of Bolboschoenus planiculmis

Journal of Plant Ecology 2021年第2期14卷 337-347页

作者： Ying Liu Christoph Bachofen Yanjing Lou zhi Ding Ming jiang Xianguo Lü Nina Buchmann The Three Gorges Institute of Ecological Environment Chongqing Institute of Green and Intelligent TechnologyChinese Academy of SciencesChongqing 400714China Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and AgroecologyChinese Academy of SciencesChangchun 130012China Institute of Agricultural Sciences Department of Environmental Systems ScienceETH ZürichZürich 8092Switzerland Plant Ecology Research Lab—PERL Environmental Engineering InstituteSchool of ArchitectureCivil and Environmental EngineeringEPFL LausanneLausanne 1015Switzerland Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions College of Environment and PlanningHenan UniversityKaifeng 475004China

Aims Climate warming and agricultural non-point source pollution both resulting from anthropogenic activities have been projected to affect plant reproduction and growth in wetlands *** order to predict and mitigate impacts of these anthropogenic activities,it is important to investigate how marsh plants respond to such environmental *** In this study,Bolboschoenus planiculmis,a tuberous sedge with a wide distribution range in Eurasia,was selected to examine the effect of air temperature changes(15,20 and 25°C over 24 h;20/10 and 30/15°C,day/night)and K supply(0,1,3,9 and 18 mmol/L)on its reproductive and growth traits in climate *** Findings We found that high constant temperatures(20 and 25°C)were more beneficial for tuberization of *** than high alternating temperatures(30/15°C),whereas aboveground biomass and shoot height were generally largest at high temperatures(30/15 and 25°C).Both reproductive and growth traits of *** showed hump-shaped relationships with K supply,with an optimum K concentration of around 1–3 mmol/*** combination of high constant temperatures and optimal K concentrations promoted reproductive traits the most,whereas the combination of higher temperatures(30/15 and 25°C)and K concentrations up to 9 mmol/L increased growth traits *** therefore conclude that population abundance of *** might benefit from global warming and the additional K supply.

关键词： climate warming non-point source pollution functional traits clonal reproduction wetland plants marsh

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Effect of subarachnoid anesthesia combined with propofol targetcontrolled infusion on blood loss and transfusion for posterior total hip arthroplasty in elderly patients

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Chinese Medical Journal 2020年第6期133卷 650-656页

作者： Cheng-Shi Xu Xiang-Dong Qu zhi-Jun Qu Geng Wang Huai-jiang Wang Department of Anesthesiology Beijing Jishuitan HospitalBeijing 100035China

Background:Intravertebral and general anesthesia(GA)are two main anesthesia approaches but both have *** study was aimed to evaluate the effect of subarachnoid anesthesia combined with propofol target-controlled infusion(TCI)on blood loss and transfusion for total hip arthroplasty(THA)in elderly patients in comparison with combined spinal-epidural anesthesia(CSEA)or ***:Totally,240 patients(aged>65 years,American Society of Anesthesiologists[ASA]I-III)scheduled for posterior THA were enrolled from September 1st,2017 to March 1st,*** cases were randomly divided into three groups to receive CSEA(group C,w=80),GA(group G,n=80),or subarachnoid anesthesia and propofol TCI(group T,w=80),*** outcomes measured were intra-operative blood loss,autologous and allogeneic blood transfusion,mean arterial pressure at different time points,length of stay in post-anesthesia care unit(PACU),length of hospital stay,and patient satisfaction ***,post-operative pain scores and complications were also *** difference of quantitative index between groups were analyzed by one-way analysis of variance,repeated measurement generalized linear model,Student-Newman-Keuls test or rank-sum test,while ratio index was analyzed by Chi-square test or Fisher exact ***:Basic characteristics were comparable among the three ***-operative blood loss in group T(331.53±64.33 mL)and group G(308.03±64.90 mL)were significantly less than group C(455.40±120.48 mL,F=65.80,P<0.001).Similarly,the autologous transfusion of group T(130.99±30.36 mL)and group G(124.09±24.34 mL)were also markedly less than group C(178.31±48.68 mL,F=52.99,P<0.001).The allogenetic blood transfusion of group C(0[0,100.00])was also significantly larger than group T(0)and group G(0)(Z=2.47,P=0.047).Except for the baseline,there were significant differences in mean arterial blood pressures before operation(F=496.84,P<0.001),10-min after the beginning of operation(F=

关键词： Total hip arthroplasty Subarachnoid anesthesia Target-controlled infusion Combined spinal-epidural anesthesia General anesthesia

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High-resolution mass spectrometric characterization of dissolved organic matter from warm and cold periods in the NEEM ice core

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Research in Cold and Arid Regions 2018年第1期10卷 38-46页

作者： jian Zhong Xu Amanda Grannas Cun De Xiao zhi Heng Du Amanda Willoughby Patrick Hatcher Yan Qing An State Key Laboratory of Cryospheric Sciences Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Department of Chemistry Villanova University Department of Chemistry and Biochemistry Old Dominion University

Dissolved organic matter(DOM) is an important component of ice cores but is currently poorly characterized. DOM from one Holocene sample(HS, aged at 1600–4500 B.P.) and one Last Glacial Maximum sample(LS, aged at 21000–25000 B.P.) from the North Greenland Eemian Ice Drilling(NEEM) ice core were analyzed by ultra-high resolution Fourier transform ion cyclotron resonance mass spectrometry(FT-ICR-MS). CHO compounds contributed 50% of the compounds identified in negative-ionization mode in these two samples, with significant contributions from organic N, S, and P compounds, likely suggesting that marine DOM was an important source in these samples. Overall, the chemical compositions are similar between these two samples, suggesting their consistent DOM sources. However, subtle differences in the DOM between these two samples are apparent and could indicate differences in source strength or chemistry occurring through both pre-and post-depositional processes. For example, higher relative amounts of condensed carbon compounds in the HS DOM(5%), compared to the LS DOM(2%), suggest potentially important contributions from terrestrial sources. Greater incorporation of P in the observed DOM in the LS DOM(22%), compared to the HS DOM(13%), indicate more active microbiological processes that likely contribute to phosphorus incorporation into the DOM pool. Although these two samples present only a preliminary analysis of DOM in glacial/interglacial periods, the data indicate a need to expand the analysis into a broader range of ice-core samples, geographical locations, and glacial/interglacial periods.

关键词： NEEM ice core FT-ICR-MS dissolved organic matter

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基于卫星导航系统的列车定位技术现状与发展

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中南大学学报（自然科学版） 2014年第11期45卷 4033-4042页

作者：刘江蔡伯根王剑北京交通大学轨道交通控制与安全国家重点实验室北京100044 北京交通大学电子信息工程学院北京100044

从GNSS技术在铁路列车定位中的应用优势出发,分析基于卫星导航系统的列车定位原理与需求,围绕GPS,GLONASS,GALILEO和北斗四大全球导航卫星系统,介绍国内外利用卫星导航实现铁路列车位置服务的应用情况,在专用型导航接收机设计、多传感... 详细信息

从GNSS技术在铁路列车定位中的应用优势出发,分析基于卫星导航系统的列车定位原理与需求,围绕GPS,GLONASS,GALILEO和北斗四大全球导航卫星系统,介绍国内外利用卫星导航实现铁路列车位置服务的应用情况,在专用型导航接收机设计、多传感器数据融合、轨道电子地图生成与辅助、完好性与安全性保障等4个方面总结了基于卫星导航的列车定位在核心理论方法层面的主要进展,并对其未来发展趋势进行展望。

关键词：全球导航卫星系统铁路运输系统列车定位位置服务

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Fine mapping and transcriptome sequencing reveal candidate genes conferring all-stage resistance to stripe rust on chromosome arm 1AL in Chinese wheat landrace AS1676

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The Crop Journal 2023年第5期11卷 1501-1511页

作者： Xiu Yang Yunfeng jiang Xianghai Yu Haipeng Zhang Yuqi Wang Fangnian Guan Li Long Hao Li Wei Li Qiantao jiang Jirui Wang Yuming Wei jian Ma Houyang Kang Pengfei Qi Qiang Xu Meng Deng Yazhou Zhang Youliang Zheng Yonghong Zhou Guoyue Chen State Key Laboratory of Crop Gene Exploitation and Utilization in Southwest China WenjiangChengdu 611130SichuanChina Triticeae Research Institute Sichuan Agricultural UniversityWenjiangChengdu 611130SichuanChina College of Agronomy Sichuan Agricultural UniversityWenjiangChengdu 611130SichuanChina

Stripe rust, caused by Puccinia striiformis f. sp. tritici(Pst), threatens wheat production worldwide, and resistant varieties tend to become susceptible after a period of cultivation owing to the variation of pathogen races. In this study, a new resistance gene against Pst race CYR34 was identified and predicted using the descendants of a cross between AS1676, a highly resistant Chinese landrace, and Avocet S, a susceptible cultivar. From a heterozygous plant from a F7recombinant inbred line(RIL) population lacking the Yr18 gene, a near-isogenic line(NIL) population was developed to map the resistance gene. An allstage resistance gene, YrAS1676, was identified on chromosome arm 1AL via bulked-segregant exomecapture sequencing. By analyzing a large NIL population consisting of 6537 plants, the gene was further mapped to the marker interval between KA1A_485.36 and KA1A_490.13, spanning 485.36–490.13 Mb on1AL. A total of 66 annotated genes have been reported in this region. To characterize and predict the candidate gene(s), an RNA-seq was performed using NIL-R and NIL-S seedlings 3 days after CYR34 inoculation. Compared to NIL-S plants, NIL-R plants showed stronger immune reaction and higher expression levels of genes encoding pathogenesis-associated proteins. These differences may help to explain why NIL-R plants were more resistant to Pst race CYR34 than NIL-S plants. By combining fine-mapping and transcriptome sequencing, a calcium-dependent protein kinase gene was finally predicted as the potential candidate gene of YrAS1676. This gene contained a single-nucleotide polymorphism. The candidate gene was more highly expressed in NIL-R than in NIL-S plants. In field experiments with Pst challenge,the YrAS1676 genotype showed mitigation of disease damage and yield loss without adverse effects on tested agronomic traits. These results suggest that YrAS1676 has potential use in wheat stripe rust resistance breeding.

关键词： Stripe rust All-stage resistance(ASR) BSE-Seq Transcriptome analyses Candidate genes

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Efficacy and safety of targeted therapy plus immunotherapy combined with hepatic artery infusion chemotherapy (FOLFOX) for unresectable hepatocarcinoma

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World Journal of Gastroenterology 2024年第17期30卷 2321-2331页

作者： zhi-Peng Lin Xiao-Long Hu Du Chen Da-Bei Huang Xu-Gong Zou Hai Zhong Sheng-Xiang Xu Yuan Chen Xiao-Qun Li jian Zhang Department of Interventional Medicine Zhongshan People’s HospitalZhongshan 528400Guangdong ProvinceChina

BACKGROUND The advent of cutting-edge systemic therapies has driven advances in the treatment of hepatocellular carcinoma(HCC),and therapeutic strategies with multiple modes of delivery have been shown to be more efficacious than ***,the mechanisms underlying this innovative treatment modality have not been *** To evaluate the clinical efficacy of targeted therapy plus immunotherapy combined with hepatic arterial infusion chemotherapy(HAIC)of FOLFOX in patients with unresectable *** We enrolled 53 patients with unresectable HCC who received a combination of targeted therapy,immunotherapy,and HAIC of FOLFOX between December 2020 and June 2021 and assessed the efficacy and safety of the treatment *** The objective response rate was 60.4%(32/53),complete response was 24.5%(13/53),partial response was 35.9%(19/53),and stable disease was 39.6%(21/53).The median duration of response and median progression-free survival were 9.1 and 13.9 months,*** surgical conversion rate was 34.0%(18/53),and 1-year overall survival was 83.0%without critical complicating diseases or adverse events(AEs).CONCLUSION The regimen of HAIC of FOLFOX,targeted therapy,and immunotherapy was curative for patients with unresectable HCC,with no serious AEs and a high rate of surgical conversion.

关键词： Hepatocellular carcinoma Hepatic arterial infusion chemotherapy Targeted therapy Immunotherapy Adverse events

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肾上腺肿瘤的CT检查与临床

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中国实用内科杂志 2006年第22期26卷 1770-1771页

作者：蒋绿芝昆明医学院第二附属医院内分泌科

肾上腺及其分泌的激素是人体重要的不可缺少的腺体和激素,同脑垂体一样体积很小的肾上腺,其细胞分化和激素的分泌是非常复杂的.当肾上腺组织细胞学发生了改变,其皮质分泌的醛固酮、皮质醇、性激素以及髓质分泌的儿茶酚胺无论在量和节律... 详细信息

肾上腺及其分泌的激素是人体重要的不可缺少的腺体和激素,同脑垂体一样体积很小的肾上腺,其细胞分化和激素的分泌是非常复杂的.当肾上腺组织细胞学发生了改变,其皮质分泌的醛固酮、皮质醇、性激素以及髓质分泌的儿茶酚胺无论在量和节律上均可出现不同程度紊乱,而影响到整个人体多方面改变,甚至体态的异常,正如一本科学杂志提到的:"内分泌腺体是一群矮小的巨人".……

关键词：肾上腺肿瘤肾上腺瘤内分泌病恶性嗜铬细胞瘤肾上腺皮质腺瘤肿瘤体积 CT

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Refracturing candidate selection for MFHWs in tight oil and gas reservoirs using hybrid method with data analysis techniques and fuzzy clustering

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Journal of Central South University 2020年第1期27卷 277-287页

作者： TAO Liang GUO jian-chun ZHAO zhi-hong YIN Qi-wu State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu 610500China Dagang Oilfield Tianjin 300000China

The selection of refracturing candidate is one of the most important jobs faced by oilfield engineers. However, due to the complicated multi-parameter relationships and their comprehensive influence, the selection of refracturing candidate is often very difficult. In this paper, a novel approach combining data analysis techniques and fuzzy clustering was proposed to select refracturing candidate. First, the analysis techniques were used to quantitatively calculate the weight coefficient and determine the key factors. Then, the idealized refracturing well was established by considering the main factors. Fuzzy clustering was applied to evaluate refracturing potential. Finally, reservoirs numerical simulation was used to further evaluate reservoirs energy and material basis of the optimum refracturing candidates. The hybrid method has been successfully applied to a tight oil reservoir in China. The average steady production was 15.8 t/d after refracturing treatment, increasing significantly compared with previous status. The research results can guide the development of tight oil and gas reservoirs effectively.

关键词： tight oil and gas reservoirs idealized refracturing well fuzzy clustering refracturing potential hybrid method

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论中国自然保护区的面积上限

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生态学报 2005年第5期25卷 1205-1212页

作者：蒋志刚中国科学院动物研究所北京100080

中国从195 6年开始建设自然保护区,其间经过了一个较长的停滞时期之后,到2 0 0 2年底,中国建立了15 5 1个自然保护区,面积达14 14 86 6 km2 ,占国土面积14 .7%。中国自然保护区面积占国土面积的比例已经在2 0 0 2年末超过世界先进水平,... 详细信息

中国从195 6年开始建设自然保护区,其间经过了一个较长的停滞时期之后,到2 0 0 2年底,中国建立了15 5 1个自然保护区,面积达14 14 86 6 km2 ,占国土面积14 .7%。中国自然保护区面积占国土面积的比例已经在2 0 0 2年末超过世界先进水平,然而,目前中国自然保护区的数量仍在增长。由于目前中国的自然保护区是严格意义的保护区,于是,作者提出应区分严格保护的自然保护区与广义的自然保护地,发展一个由不同保护目的、不同保护程度、合理布局的自然保护区组成的综合自然保护区体系,结合经济发展水平建设自然保护区的思想。估算了现阶段自然保护区的基本建设投入与管护费用,探讨了建设和管理2 0 0 2年末中国自然保护区的资金需求。还提出研究中国自然保护区中人口、中国国土面积及分类和中国各种类型土地的适宜保护面积,探讨“在中国多大的国土面积可以建设为自然保护区?”这一命题,从保存生物物种、生物资源、主要生态系统、可持续利用方面研究中国自然保护地的面积上限。

关键词：自然保护地国土面积濒危物种可持续发展

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Design study on medium beta superconducting half-wave resonator at IMP

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Nuclear Science and Techniques 2016年第4期27卷 21-27页

作者： An-Dong Wu Sheng-Hu Zhang Wei-Ming Yue Tian-Cai jiang Yong-Ming Li Feng-Feng Wang Sheng-Xue Zhang Liang-jian Wen Ran Huang Yuan He Hong-Wei Zhao Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 China University of Chinese Academy of Sciences Beijing 100049 China

A 325-MHz superconducting half-wave resonator has been designed with β = 0.51. Three shapes of the inner conductors(race track, ring shape and elliptical shape) were optimized to decrease the peak electromagnetic fields and minimize the dissipated RF power on the cavity walls. In order to suppress the operation frequency shift caused by fluctuations of the helium pressure and maximize the tuning ranges, the frequency shifts and mechanical properties were studied on the electric and magnetic areas. The helium vessel was designed to keep the mechanical structure as robust as possible.

关键词：超导谐振器设计 IMP 射频功率压力波动调谐范围机械性能频率变化

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