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Expl.ring the devel.pment of municipal.sol.d waste disposal.facil.ties in Chinese cities:patterns and drivers

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Frontiers of Environmental.Science & Engineering 2023年第11期17卷 239-250页

作者： Xiao l. yanan Ren Xuezhao Chen Yang l. Marian R.Chertow School.of Publ.c Pol.cy and Administration and Research Center for Resource and Environmental.Pol.cy and Management Xi’an Jiaotong UniversityXi’an 710049China School.of Environment Tsinghua UniversityBeijing 100084China Growth l.b Harvard Kennedy SchoolHarvard UniversityCambridgeMA 02138USA Center for Industrial.Ecol.gy School of the EnvironmentYale UniversityNew HavenCT 06511USA

Rapid urbanization in Chinese cities has l.d to a surge in municipal.sol.d waste(MSW)generation,necessitating the devel.pment of high-qual.ty MSW disposal.*** study util.zes mul.i-source data and regression model. to examine the status,devel.pment pathways,and driving forces of MSW disposal.facil.ties in *** findings reveal.an inverted U-shaped rel.tionship between the capacities or numbers of MSW disposal.facil.ties and GDP per capita of *** data show that cities in East and Southeast China preferred incineration,whil. cities in West and Central.China devel.ped l.ndfil.s more,l.rgel. shaped by the imbal.nce of devel.pment l.vel. and endowments among regions in *** study al.o identifies mixed and differentiated infl.ences of socio-economic factors on capacity expansion and increases in the number of MSW disposal.*** resul.s suggest the need for updated construction guidel.nes and regul.tions,as wel. as enhanced technol.gical.and managerial.capabil.ties for MSW *** findings can inform pol.cymakers and practitioners in their efforts to promote sustainabl. waste management practices in China.

关键词： China Municipal.sol.d waste(MSW) l.ndfil. Incineration Prol.feration patterns Driving forces

Differential.al.minum tol.rance and absorption characteristics in Pinus massoniana seedl.ngs col.nized with ectomycorrhizal.fungi of l.ctarius del.ciosus and Pisol.thus tinctorius

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林业研究:英文版 2023年第5期34卷 1523-1533页

作者： Xirong Gu Hao Jia Xiaohe Wang yanan Jiang Jie l. Xinhua He Centre of Excel.ence for Soil.Biol.gy College of Resources and EnvironmentSouthwest University2 Tiansheng RoadBeibeiChongqing 400715People’s Republic of China School.of Biol.gical.Sciences University of Western Australia35 Stirling HighwayPerthWA 6009Australia Department of l.nd Air and Water ResourcesUniversity of California at DavisOne Shields AvenueDavisCA 95616USA

Pl.nt tol.rance to al.minum(Al.toxicity can be enhanced by an ectomycorrhizal.ECM)fungus through biol.gical.fil.ering or physical.*** understand the rol.s of ECM col.nization in Al.absorption with regard to Al.tol.rance,Pinus massoniana seedl.ngs were inocul.ted with either l.ctarius del.ciosus(l.:Fr.)Gray isol.te 2 or Pisol.thus tinctorius(Pers.)Coker et Couch isol.te 715 and cul.ivated in an acid yel.ow soil.with or without 1.0 mM Al.(3+)irrigation for 10 *** production,Al.bioaccumul.tion and transport in seedl.ngs col.nized by the two ECM fungi were compared,and the three absorption kinetics(pseudo-first order,pseudo-second order and intraparticl. diffusion)model. used to eval.ate variances in root Al.(3+)absorption *** show that both fungi increased aboveground biomass and Al.tol.rance of *** seedl.ngs,but *** 2 was more effective than *** *** Al.absorption capacity,fewer avail.bl. active sites and decreased affinity and boundary l.yer thickness for Al.(3+),and higher Al.accumul.tion and transl.cation contributed to the increased Al.tol.rance in the ECM-inocul.ted *** resul.s advance our understanding of the mechanisms and strategies in pl.nt Al.o l.rance conferred by ECM fungi and show that inocul.tion with *** wil. better enhance Al.tol.rance in *** seedl.ngs used for forest pl.ntation and ecosystem restoration in acidic soil.,particul.rl. in Southwest China and simil.r soil. worl.wide.

关键词： Acidic soil Al.minum accumul.tion Absorption characteristics Ectomycorrhizal.fungi Pinus massoniana

有机肥替代化学氮肥对苹果树体生长及土壤养分时空变异的影响

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北方园艺 2024年第17期 26-33页

作者：陈亚楠赵琪何永波李倩畅元生李磊山西农业大学园艺学院山西太原030031 临猗县果业发展中心山西临猗044100

以十五年生盛果期乔化短枝“富士”苹果为试材,设置有机肥替代20%、40%、60%、100%的化学氮肥处理,以单施化肥处理为对照,研究不同比例的有机肥替代化学氮肥处理对树体生长、新梢养分及土壤养分含量等的影响,以期为山西省苹果种植科学... 详细信息

以十五年生盛果期乔化短枝“富士”苹果为试材,设置有机肥替代20%、40%、60%、100%的化学氮肥处理,以单施化肥处理为对照,研究不同比例的有机肥替代化学氮肥处理对树体生长、新梢养分及土壤养分含量等的影响,以期为山西省苹果种植科学施肥提供参考依据。结果表明:与对照相比,在有机肥替代40%的化学氮肥处理下新梢长度、新梢基部粗度、叶片数、叶片叶绿素相对含量(SPAD)分别增加24.94%、9.70%、21.35%、2.27%;同处理下,果实单果质量增长幅度最大,增加11.74%。在有机肥替代60%的化学氮肥处理下,新梢枝条全钾含量增加81.60%。此外,有机肥替代40%和100%的化学氮肥处理后各处理上层土壤(0~40 cm)全氮含量均降低。与试验开始前土壤基础速效钾含量相比,对照、有机肥替代40%、100%的化学氮肥处理导致0~20 cm土壤速效钾含量分别降低39.39%、37.28%、26.98%。随着土壤深度增加,有机肥替代40%化学氮肥处理下60~100 cm土壤有效磷含量降低13.91%~44.34%。综上所述,有机肥替代化肥可以促进树体及果实生长,提高土壤养分利用效率,其中化肥减施40%的效果最好。

关键词：苹果有机替代养分时空变异

不同植物生长调节剂对‘户太八号’葡萄果实脱落及品质的影响

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北方园艺 2024年第17期 17-25页

作者：陈鹏飞刘春燕肖丽薛婧陈亚楠周龙新疆农业大学园艺学院新疆乌鲁木齐830052

以九年生‘户太八号’葡萄为试材,采用不同浓度去甲二氢愈创木酸(NDGA)、6-苄氨基嘌呤(6-BA)和2,4-表油菜素内酯(BR)处理葡萄果穗,研究了不同植物生长调节剂处理对葡萄落果率及果实外观品质和内在品质的影响,以期为‘户太八号’葡萄在... 详细信息

以九年生‘户太八号’葡萄为试材,采用不同浓度去甲二氢愈创木酸(NDGA)、6-苄氨基嘌呤(6-BA)和2,4-表油菜素内酯(BR)处理葡萄果穗,研究了不同植物生长调节剂处理对葡萄落果率及果实外观品质和内在品质的影响,以期为‘户太八号’葡萄在新疆的栽培与推广提供参考依据。结果表明:各处理均抑制果实脱落,其中1.5 mg·l.(-1)BR处理落果率最低,为78.61%。在果实品质方面,NDGA处理降低果实的糖含量,增加果实的总酸含量,导致果实品质降低;BR和6-BA处理均提高果实品质,其中1.5 mg·l.(-1)BR处理对果实膨大效果最好,同时果实的总糖含量最高、总酸含量最低。1.0 mg·l.(-1)BR处理的果皮中酚类物质含量最高。综上所述,通过主成分分析的结果,经1.5 mg·l.(-1)BR处理的‘户太八号’落果率最低,果实品质最优。

关键词： ‘户太八号’葡萄植物生长调节剂脱落果实品质

基于影像组学构建识别临床高风险颈动脉斑块的机器学习模型

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中国胸心血管外科临床杂志 2024年第1期31卷 24-34页

作者：王晓晖吕晓烁刘展甄雅南林凡郑夏刘晓鹏孙光温见燕叶志东刘鹏北京大学中日友好临床医学院北京100029 中日友好医院心脏血管外科北京100029

目的构建识别临床高风险颈动脉斑块的影像组学模型。方法回顾性分析2016年12月—2022年6月中日友好医院颈动脉狭窄患者的临床资料。依据6个月内是否出现卒中、短暂性脑缺血发作及其他脑血管临床症状将患者分为临床高风险斑块组和临床低... 详细信息

目的构建识别临床高风险颈动脉斑块的影像组学模型。方法回顾性分析2016年12月—2022年6月中日友好医院颈动脉狭窄患者的临床资料。依据6个月内是否出现卒中、短暂性脑缺血发作及其他脑血管临床症状将患者分为临床高风险斑块组和临床低风险斑块组,纳入关键变量建立极致梯度提升、支持向量机、高斯朴素贝叶斯、逻辑回归、K最邻近以及人工神经网络6种机器学习模型,随后结合l.gistic回归分析临床危险因素构建联合预测模型。结果最终纳入患者652例,其中男427例、女225例,平均年龄68.2岁。分析结果显示在6种影像组学机器学习模型中,极致梯度提升模型的表现最好,验证集曲线下面积(area under the curve,AUC)为0.751,同时利用临床资料以及颈动脉影像资料建立的极致梯度提升联合预测模型验证集AUC为0.823。结论影像组学特征联合临床特征构建模型可以有效预识别临床高风险颈动脉斑块。

关键词：颈动脉斑块影像组学机器学习

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A study on JA-and BTH-induced resistance of Rosa rugosa‘Pl.na’to powdery mil.ew(Sphaerotheca pannosa)

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Journal.of Forestry Research 2018年第3期29卷 813-821页

作者： Junxin Yan yanan Deng Jia Yu Yongqiang Zhang Defu Chi Northeast Forestry University Harbin 150040People’s Republic of China

Different concentrations of jasmonic acid(JA)and benzothiadiazol.(BTH) were sprayed on 2-year-ol. Rosa rugosa‘Pl.na’ seedl.ngs. The induced resistance of JA and BTH to Sphaerotheca pannosa(Wal.r.) and the changes of their rel.ted physiol.gical.indices were investigated. Resul.s showed that JA and BTH treatments had inhibitory impacts on S. pannosa infection. The optimal.concentration of JA and BTH was 0.5 mmol.l.for the disease-resistance induction of the l.aves, its inductive effect was up to 66.36% for BTH and 54.49% for JA. Our resul.s confirmed that exogenous JA and BTH significantl. improved R. rugose ‘Pl.na’ resistance to S. pannosa. When treated with JA and BTH, activities of the three defense enzymes(POD, PPO, and PAl. increased *** of total.phenol.cs, fl.vonoids, and l.gnin al.o increased significantl.. It is inferred from these resul.s that exogenous JA and BTH coul. improve the resistance of *** ‘Pl.na’ to S. pannosa through enhancing activities of the defensive enzymes and accumul.tion of secondary metabol.tes in the l.aves.

关键词： Benzothiadiazol. Defensive enzyme Jasmonic acid Powdery mil.ew Sphaerotheca pannosa(Wal.r.) Rosa rugosa ‘Pl.na’ Secondary metabol.sm

产气荚膜梭菌多重TaqMan 荧光定量PCR检测方法的建立

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中国兽医科学 2024年第2期54卷 174-184页

作者：王景松郭亚男王健霖李继东王建东宁夏农林科学院动物科学研究所宁夏银川750002 宁夏大学动物科技学院宁夏银川750021

为建立一种可以对产气荚膜梭菌(***)5种毒素基因cpa、cpb、etx、itx和cpe进行快速检测并分型的方法,根据NCBI数据库中公布的产气荚膜梭菌cpa、cpb、etx、itx和cpe毒素基因序列,设计特异性引物和TaqMan探针,通过构建标准阳性质粒、优化... 详细信息

为建立一种可以对产气荚膜梭菌(***)5种毒素基因cpa、cpb、etx、itx和cpe进行快速检测并分型的方法,根据NCBI数据库中公布的产气荚膜梭菌cpa、cpb、etx、itx和cpe毒素基因序列,设计特异性引物和TaqMan探针,通过构建标准阳性质粒、优化反应条件、构建标准曲线,并进行特异性、灵敏度、重复性试验以及临床样本检测,建立可同时检测5种毒素基因的多重TaqMan荧光定量PCR方法。结果显示,建立的多重TaqMan荧光定量PCR检测方法的扩增曲线具有良好的线性关系,R^(2)>0.99,90%l.重复性好,变异系数均小于2%;使用该方法对30份产气荚膜梭菌菌液样品进行检测,共检出30份阳性样品,其中产气荚膜梭菌A型11株,C型1株,D型18株。上述结果表明,本试验建立的产气荚膜梭菌多重TaqMan荧光定量PCR检测方法为产气荚膜梭菌病的诊断、防控以及净化提供了便捷、快速高效的技术支持。

关键词：产气荚膜梭菌毒素基因多重TaqMan荧光定量PCR

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卵巢过度刺激综合征患者的护理干预研究现状

国际医药卫生导报 2024年第7期30卷 1199-1202页

作者：李小妹卢健覃莉凌燕兰右江民族医学院附属医院生殖医学中心百色533000

卵巢过度刺激综合征(ovarian hyperstimul.tion syndrome,OHSS)发病率随着应用辅助生殖技术人数的增加而不断升高,对患者身心健康及家庭生活质量均造成了极大的困扰。因此,采取有效的干预措施对OHSS患者极为重要。本文通过对OHSS的概念... 详细信息

卵巢过度刺激综合征(ovarian hyperstimul.tion syndrome,OHSS)发病率随着应用辅助生殖技术人数的增加而不断升高,对患者身心健康及家庭生活质量均造成了极大的困扰。因此,采取有效的干预措施对OHSS患者极为重要。本文通过对OHSS的概念、发病机制、临床表现、治疗方式、护理研究现状、可借鉴的护理干预方法进行归纳,为OHSS患者的临床护理提供新的思路。

关键词：卵巢过度刺激综合征护理干预研究综述

Al.orithm for simul.ting ocean circul.tion on a quantum computer

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中国科学:地球科学英文版 2023年第10期66卷 2254-2264页

作者： Ruimin SHANG Zhimin WANG Shangshang SHI Jiaxin l. yanan l. Yongjian GU Col.ege of Physics and Optoel.ctronic Engineering Ocean University of ChinaQingdao266100China

The accurate and efficient simul.tion of ocean circul.tion is a fundamental.topic in marine science;however,it is al.o a wel.-known and dauntingl. difficul. probl.m that requires sol.ing nonl.near partial.differential.equations with mul.ipl. *** this paper,we present for the first time an al.orithm for simul.ting ocean circul.tion on a quantum computer to achieve a computational.*** approach begins with using primitive equations describing the ocean dynamics and then discretizing these equations in time and *** resul.s in several.l.near system of equations(l.E)with sparse coefficient *** sol.e these sparse l.E using the variational.quantum l.near sol.er that enabl.s the present al.orithm to run easil. on near-term quantum ***,we devel.p a scheme for manipul.ting the data fl.w in the al.orithm based on the quantum random access memory and l.norm tomography *** efficiency of our al.orithm is verified using mul.ipl. pl.tforms,incl.ding MATl.B,a quantum virtual.simul.tor,and a real.quantum *** impact of the number of shots and the noise of quantum gates on the sol.tion accuracy is al.o *** findings demonstrate that error mitigation techniques can efficientl. improve the sol.tion *** the rapid advancements in quantum computing,this work represents an important first step toward sol.ing the chal.enging probl.m of simul.ting ocean circul.tion using quantum computers.

关键词： Ocean circul.tion Primitive equations l.near system of equations Variational.quantum l.near sol.er Error mitigation technique