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Observation of a Ubiquitous(π,π)-Type nematic Superconducting Order in the Whole Superconducting Dome of Ultra-Thin Bafe_(2-x)ni_(x)As_(2) Single Crystals

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Chinese Physics Letters 2021年第9期38卷 85-95页

作者： Yu Dong Yangyang Lv Zuyu Xu M.Abdel-Hafiez A.n.Vasiliev Haipeng Zhu Junf.ng Wang liang li Wanghao Tian Wei Chen Song Bao Jinghui Wang Yueshen Wu Yulong Huang Shiliang li Jie Yuan Kui Jin Labao Zhang Huabing Wang Shun-li Yu Jinsheng Wen Jian-Xin li Jun li Peiheng Wu School of Electronic Science and Engineering&School of Physics Nanjing UniversityNanjing 210093China national Laboratory of Solid State Microstructures Nanjing UniversityNanjing 210093China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China national University of Science and Technology(MISiS) Moscow 119049Russia Department of Physics and Astronomy Box 516Uppsala UniversityUppsala SE-75120Sweden Moscow State University Moscow 119991Russia Wuhan national High Magnetic field Center&School of Physics Huazhong University of Science and TechnologyWuhan 430074China ShanghaiTech Laboratory for Topological Physics&School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China Beijing national Laboratory for Condensed Matter Physics&Institute of Physics Chinese Academy of SciencesBeijing 100190China Synergetic Innovation Center in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China

In iron-based superconductors,the(0,π) or(π,0) nematicity,which describes an electronic anisotropy with a fourfold symmetry breaking,is well established and believed to be important for understanding the superconducting ***,how exactly such a nematic order observed in the normal state can be related to the superconducting pairing is still ***,by performing angular-dependent in-plane magnetoresistivity using ultra-thin flakes in the steep superconducting transition region,we unveil a nematic superconducting order along the(π,π) direction in electron-doped Bafe_(2-x)ni_(x)As_(2) from under-doped to heavily overdoped regimes with x=0.065- *** shows superconducting gap maxima along the(π,π) direction rotated by 45° from the nematicity along(0, π) or(π,0) direction observed in the normal state.A similar(π,π)-type nematicity is also observed in the under-doped and optimally doped hole-type Ba1-yKyfe2 As_(2),with y=*** results suggest that the(π,π) nematic superconducting order is a universal feature that needs to be taken into account in the superconducting pairing mechanism in iron-based superconductors.

关键词： pairing (x) Crystal

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A modeling study of the impact of heterogeneous reactions on mineral aerosol surfaces on tropospheric chemistry over East Asia

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Particuology 2010年第5期8卷 433-441页

作者： Jiawei li Zhiwei Han Key Laboratory of Regional Climate-Environment Research for Temperate East-Asia (RCE-TEA) Institute of Atmospheric Physics Chinese Academy of Sdences Beijing China

nine heterogeneous reactions （uptake of H2O2, HnO3, HO2, n2O5, nO2, nO3, O3, OH and SO2 on mineral aerosol surfaces） are incorporated into a Regional Air Quality Model System （RAQMS） to investigate their impacts on tropospheric chemistry in East Asia during the dust storm period in March 2006. Comparison with observations shows the model system well represents the behaviors of the gaseous and aerosol species. Most of the reaction probability γvalues used for this study are the best estimation specifically for dust samples from deserts of China, derived from analysis of a number of recent laboratory studies. There are large variations in gas and aerosol concentrations while taking heterogeneous reactions on mineral aerosol surface into account, especially during dust storm events. The domain-averaged monthly mean percentage changes in SO2, nO2, O3, HnO3, nH3, total sulfate, total nitrate and total ammonium concentrations are -4.4%, -3.8%, -2.1%, -22.0%, 12.7%, 6.6%, 26.1%, and -9.5%, respectively below 3 km. These changes indicate the considerable perturbation of heterogeneous reactions on mineral aerosol surface to tropospheric chemical system and components. The strength of heterogeneous reactions is determined by both reaction probability and gas precursor concentration. Among the nine reactions, dust uptakes of HnO3, SO2, and n2O5 exert relatively large influences on the other chemical components, whereas the reactions regarding H2O2, HO2, and OH have little impacts.

关键词： Heterogeneous reactionMineral aerosolTropospheric chemistrynumerical simulationDust storm

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能量代谢车在术后早期合并严重左心功能不全患儿中的应用探索

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中华小儿外科杂志 2024年第9期45卷 778-782页

作者：郑林陈雪婷李泉林王澎王旭中国医学科学院阜外医院小儿心脏外科PICU 北京100037

目的:探究严重左心功能不全患儿术后早期能量代谢特点及营养支持策略。方法:2022年1月至2024年1月中国医学科学院阜外医院小儿心脏中心PICU收治53例先天性冠状动脉畸形合并左心功能不全(射血分数<40%)手术患儿,其中男33例,女20例;年龄(6... 详细信息

目的:探究严重左心功能不全患儿术后早期能量代谢特点及营养支持策略。方法:2022年1月至2024年1月中国医学科学院阜外医院小儿心脏中心PICU收治53例先天性冠状动脉畸形合并左心功能不全(射血分数ng energy expenditure,REE),了解患儿术后REE变化规律。按是否根据REE给予营养支持分为REE组和常规营养支持组,比较两组患儿术后能量需求的异同及不同营养支持策略下的临床预后。使用配对t检验和秩和检验进行数据统计分析。结果:REE组患儿24例,常规营养组患儿29例,两组术前年龄、身高、体重、性别、营养状态评分差异无统计学意义;两组术前左室舒张末径及左室射血分数差异无统计学意义(P=0.088,P=0.935),两组术后均应用能量代谢车对REE进行监测,术后4 h及术后1 d的REE差异无明显统计学意义(P=0.510,P=0.212);术后机械通气时间常规营养组为(86.52±139.95)h,相较于REE组的(44.75±47.10)h,机械通气时间延长(P=0.041),ICU住院时间差异无统计学意义(P=0.852);术后并发症对比,常规营养支持组(6例)相较于REE组(0例)二次插管率高,差异具有统计学意义(P=0.021)。结论:严重左心功能不全患儿术后早期能量代谢较低,基于REE的营养支持策略可以减少机械通气时间,减少二次插管率。

关键词：心脏病先天畸形左心衰竭静息能量消耗

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干旱下小麦旗叶在灌浆期下午保持高光合速率的生理机制

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植物生理学报 2024年第3期60卷 573-584页

作者：吴金芝王荣荣黄明汪洪涛赵雯馨李淑靖黄修利张振旺李友军河南科技大学农学院河南洛阳471023

为了研究干旱下小麦旗叶在灌浆期下午保持高光合速率的生理机制,2018—2021年度,在防雨棚池栽条件下,以强抗旱性品种‘晋麦47’(‘JM47’)和弱抗旱性品种‘偃展4110’(‘YZ4110’)为材料,采取测墒补灌的方法,设置重度干旱(W1)、中度干旱... 详细信息

为了研究干旱下小麦旗叶在灌浆期下午保持高光合速率的生理机制,2018—2021年度,在防雨棚池栽条件下,以强抗旱性品种‘晋麦47’(‘JM47’)和弱抗旱性品种‘偃展4110’(‘YZ4110’)为材料,采取测墒补灌的方法,设置重度干旱(W1)、中度干旱(W2)、轻度干旱(W3)、适宜供水(W4)4个处理,测定了灌浆前期(EGfS)、中期(MGfS)和中后期(MALGfS)14:00—16:00的旗叶净光合速率(Pn)、相对含水量(RWC)、抗氧化特性、渗透调节物质含量以及成熟期的籽粒产量。结果表明,干旱导致小麦灌浆期下午旗叶Pn和籽粒产量降低且整体上‘JM47’灌浆期下午旗叶Pn和籽粒产量显著高于‘YZ4110’。从3年均值来看,与W4相比,干旱使灌浆期下午的旗叶生理特性整体上表现为RWC和过氧化物酶(POD)、过氧化氢酶(CAT)活性降低,旗叶丙二醛(MDA)、脯氨酸(Pro)和可溶性糖(SS)含量提高,且‘JM47’的变幅多优于‘YZ4110’。与‘YZ4110’相比,干旱下‘JM47’灌浆中期下午的旗叶RWC、POD活性、SS含量,灌浆中后期下午的旗叶RWC、POD活性、CAT活性和Pro含量显著提高,灌浆中期和中后期旗叶下午MDA含量显著降低。相关分析结果表明,除灌浆前期下午‘JM47’旗叶CAT活性、SS含量和‘YZ4110’旗叶CAT活性,以及灌浆中期下午‘JM47’旗叶CAT活性外,灌浆期下午旗叶Pn与旗叶RWC、POD活性、CAT活性显著正相关,与旗叶Pro、SS和MDA含量显著负相关。综上,干旱会降低灌浆期下午旗叶Pn,干旱下强抗旱性品种‘JM47’旗叶在灌浆期下午具有较高的RWC、POD活性、CAT活性、Pro含量、SS含量,较低MDA含量是其维持高Pn的生理基础。

关键词：干旱灌浆期下午光合速率生理特性产量

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高寒区燕麦、豌豆农艺性状对氮添加和间作模式的响应

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草业科学 2024年第3期41卷 718-730页

作者：冯晓云张鹏李媛马婧娟梁国玲鲍根生青海省畜牧兽医科学院青海西宁810016 青海大学畜牧兽医科学院青海西宁810003

间作种植与氮添加对高寒区燕麦(Avena sativa)和豌豆(Pisum sativum)农艺性状影响的研究报道较少。基于此,本研究以燕麦新品系‘青永久872’和饲用豌豆‘青建1号’为试验对象,比较间作种植模式和氮添加对间作燕麦、豌豆关键农艺性状的... 详细信息

间作种植与氮添加对高寒区燕麦(Avena sativa)和豌豆(Pisum sativum)农艺性状影响的研究报道较少。基于此,本研究以燕麦新品系‘青永久872’和饲用豌豆‘青建1号’为试验对象,比较间作种植模式和氮添加对间作燕麦、豌豆关键农艺性状的调控作用及产量的影响。结果表明:1)种植方式和氮添加均影响燕麦和豌豆农艺性状表现;2)低氮添加和隔行间作种植的燕麦、豌豆间作体系总土地当量比最高,且在n_(2)(50 kg·hm^(−2))和n_(3)(200 kg·hm^(−2))处理下燕麦种间竞争力强于豌豆;3)冗余分析(RDA)表明,种植方式和氮添加水平与燕麦株高、分蘖等与草产量相关的农艺性状正相关,氮添加水平与豌豆草产量相关农艺性状正相关,种植方式与豌豆种子产量相关农艺性状正相关;4)灰色关联分析表明,在未添加氮n1(0 kg·hm^(−2))时,单播燕麦分蘖和豌豆始荚节数、隔行间作燕麦单株籽粒数和豌豆荚数以及同行混合间作燕麦分蘖和豌豆荚数与草产量关联系数最大;在低氮添加n_(2)(50 kg·hm^(−2))时,单播燕麦分蘖和豌豆单株籽粒数、隔行间作燕麦粒长和豌豆荚数以及同行混合间作燕麦单株小穗数和豌豆单株籽粒数与草产量关联系数最大;在高氮添加n_(3)(200 kg·hm^(−2))时,单播燕麦茎粗和豌豆荚数、隔行间作燕麦单株籽粒重和豌豆单株籽粒数以及同行混合间作燕麦单株籽粒数和豌豆荚数与草产量关联系数最大。由此可见,合理安排种植方式和精准施氮是高寒区高品质栽培草地建植的关键。

关键词：禾豆混播农艺性状土地当量比种间竞争力灰色关联分析草产量

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The effect of urbanization and exposure to multiple environmental factors on life-history traits and breeding success of Barn Swallows(Hirundo rustica)across China

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Avian Research 2022年第3期13卷 301-310页

作者： Yanyan Zhao Emilio Pagani-nú~nez Yu liu Xiaoying Xing Zhiqiang Zhang Guangji Pan Luting Song Xiang li Zhuoya Zhou Yanqiu Chen Donglai li Yang liu Rebecca J.Safran State Key Laboratory of Biocontrol School of EcologySun Yat-sen UniversityGuangzhou510006China Institute of Eco-Environmental Research Guangxi Academy of SciencesNanning530007China Department of Health and Environmental Sciences Xi’an Jiaotong-Liverpool UniversitySuzhou215028China Key Laboratory for Biodiversity Science and Ecological Engineering Ministry of EducationCollege of Life SciencesBeijing Normal UniversityBeijing100091China College of Wildlife and Protected Area Northeast Forestry UniversityHarbin150006China Institute of Wildlife Conservation Central South University of Forestry and TechnologyChangsha410004China College of life Science Liaoning UniversityShenyang110036China Department of Ecology and Evolutionary Biology University of ColoradoBoulderUSA

In addition to landscape changes,urbanization also brings about changes in environmental factors that can affect *** the common referral in the published literature to multiple environmental factors such as light and noise pollution,there is a gap in knowledge about their combined *** developed a multidimensional environmental framework to assess the effect of urbanization and multiple environmental factors(light,noise,and temperature)on life-history traits and breeding success of Barn Swallows(Hirundo rustica)across rural to urban gradients in four locations spanning over 2500 km from north to South *** a single breeding season,we measured these environmental factors nearby nests and quantified landscape urbanization over a 1km~*** then analysed the relationships between these multiple environmental factors through a principal component analysis and conducted spatially explicit linear-mixed effects models to assess their effect on lifehistory traits and breeding *** were particularly interested in understanding whether and how Barn Swallows were able to adapt to such environmental conditions associated with *** results show that there is significant variation in the exposure to environmental conditions experienced by Barn Swallows breeding across urbanization gradients in *** changes and their effects are complex due to the behavioural responses ameliorating potential negative effects by selecting nesting sites that minimize exposure to environmental ***,significant relationships between landscape urbanization,exposure to environmental factors,and life-history traits such as laying date and clutch size were ***,the impact on breeding success was,at least in our sample,negligible,suggesting that Barn Swallows are extremely adaptable to a wide range of environmental features.

关键词： fitness Heat-island effect Latitude light pollution noise pollution Parental investment

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Comparison of efficacy and safety of.nab-paclitaxel and oxaliplatin+S-1 and standard S-1 and oxaliplatin chemotherapy regimens for treatment of gastric cancer

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World Journal of Gastrointestinal Surgery 2024年第10期16卷 3224-3238页

作者： Yi-Cong Wang Long f.ng Gong-Ping Wang Peng-Jie Yu Can Guo Bao-Jia Cai Yan Song Ting Pan Bo-Hao lin Yuan-Dong li Jing-Jing Xiao Department of Gastrointestinal Oncology The Affiliated Hospital of Qinghai UniversityXining 810000Qinghai ProvinceChina Department of Interventional Medicine Xi’an No.3 HospitalThe Affiliated Hospital of Northwestern UniversityXi’an 710018Shaanxi ProvinceChina Department of RadiologyLuoyang no.6 People's Hospital Luoyang 471000Henan ProvinceChina Department of Gastrointestinal Surgery The Affiliated Hospital of Qinghai UniversityXining 810000Qinghai ProvinceChina

BACKGROUnD Gastric cancer(GC)is a relatively frequent clinical phenomenon,referring to ma-lignant tumors emerging in the gastric mucosal epithelial *** has a high mor-bidity and mortality rate,posing a significant threat to the health of ***,how to diagnose and treat GC has become a heated topic in this research *** To discuss the effectiveness and safety of.nab-paclitaxel in combination with oxaliplatin and S-1(P-SOX)for the treatment of GC,and to analyze the factors that may influence its *** A total of 219 eligible patients with advanced GC,who were treated at Qinghai University Affiliated Hospital Gastrointestinal Oncology between January 2018 and March 2020,were included in the *** them,149 patients received SOX regimen and 70 patients received S-1 *** patients underwent both preoperative and postoperative chemotherapy consisting of 2-4 cycles each,totaling 6-8 cycles,along with parallel D2 radical surgical *** patients were followed up for a period of three years or until reaching the event *** The short-term and long-term efficacy of the P-SOX group was significantly higher than that of the SOX group,and the safety was *** multivariate analysis revealed that progression-free survival was associated with perioperative chemotherapy efficacy,tumor diameter≤2cm,high differentiation,and early cTnM(T stands for invasion depth;n stands for node metastasis;M stands for distant invasion)*** In comparison to the SOX regimen,the P-SOX regimen demonstrates improved short-term and long-term efficacy with tolerable adverse *** is anticipated that the P-SOX regimen will emerge as a first-line chemotherapy option for *** with GC who receive effective perioperative chemotherapy(Response Evaluation Criteria in Solid Tumors 1.1,Tumor Regression Grade),have a tumor diameter≤2cm,exhibit high degree of differentiation,and are at an early cTnM stage show better prognos

关键词： nab-paclitaxel Gastric cancer Efficacy Safety

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Recent advances in the preparation of fmoc-SPPS-based peptide thioester and its surrogates for nCL-type reactions

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Science China Chemistry 2017年第2期60卷 201-213页

作者： Hongxing li Suwei Dong State Key Laboratory of.natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Beijing 100191 China

Solid phase peptide synthesis(SPPS)based on fmoc chemistry has become a commonly used technique in peptide chemistry,as it can be easily conducted using automated machine,and not requiring highly toxic Hf in comparison to *** the fast development in the emerging field of protein chemical synthesis,many efforts have been endeavored aiming to f.nd more efficient methods for preparing peptide fragments required in ligation *** review briefly summarizes recent advances in the engineering and modification of fmoc-SPPS-derived peptides,which can be used as the n-terminal fragments in a native chemical ligation(nCL)or nCL-type ligation reactions.

关键词： native chemical ligation fmoc-SPPS peptide thioester protein chemical synthesis

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动脉自旋标记联合区域性动脉自旋标记技术评估单侧大脑中动脉重度狭窄或闭塞患者侧支代偿

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中国医学影像技术 2024年第4期40卷 526-530页

作者：刘蒋静李晨林斌王玲廷周智鹏桂林医学院附属医院放射科广西桂林541001

目的观察动脉自旋标记(ASL)联合区域性ASL(t-ASL)技术评估单侧大脑中动脉(MCA)重度狭窄或闭塞患者侧支代偿的价值。方法回顾性选取52例单侧MCA重度狭窄或闭塞患者(病变组),根据相对脑血流量(rCBf)将其进一步分为侧支循环不良亚组(n=23... 详细信息

目的观察动脉自旋标记(ASL)联合区域性ASL(t-ASL)技术评估单侧大脑中动脉(MCA)重度狭窄或闭塞患者侧支代偿的价值。方法回顾性选取52例单侧MCA重度狭窄或闭塞患者(病变组),根据相对脑血流量(rCBf)将其进一步分为侧支循环不良亚组(n=23)及良好亚组(n=29);以55名健康体检者为对照组。基于ASL[标记后延迟时间(PLD)=1 525、2 525 ms]和t-ASL图像比较组间及病变组内亚组间脑血流量(CBf)、rCBf及CBf差值(PLD 2 525 ms下CBf-PLD 1 525 ms下CBf),观察侧支代偿来源;以Kendall相关性分析评估各参数与代偿的相关性。结果病变组患侧与对照组左侧CBf、CBf差值的差异及组间rCBf差异均有统计学意义(P均f均大于PLD=1 525 ms(P均f均小于对侧(P均f差值、患侧CBf及rCBf差异(P均f(PLD=2 525 ms)与存在VBA侧支代偿呈低度正相关(r=0.397,P=0.004)。结论 ASL联合t-ASL有助于评估单侧MCA狭窄或闭塞患者侧支代偿情况。

关键词：大脑中动脉狭窄闭塞侧支循环动脉自旋标记灌注成像

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少数民族自治区高职信息技术专业群产教融合模式研究与实践

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湖北开放职业学院学报 2024年第5期37卷 70-72页

作者：钟文基吴丽萍王丽磊广西水利电力职业技术学院广西南宁530023 广西职业技术学院广西南宁530000

本文聚焦教育链、人才链、产业链、创新链的有机衔接,深耕校企合作,促进产教融合,打造了“1+n”的高职信息技术专业群产教融合新模式,与一家在教育和产业都具有影响力的龙头企业开展深度产教融合,共建信息与通信技术学院、共建师资团队... 详细信息

本文聚焦教育链、人才链、产业链、创新链的有机衔接,深耕校企合作,促进产教融合,打造了“1+n”的高职信息技术专业群产教融合新模式,与一家在教育和产业都具有影响力的龙头企业开展深度产教融合,共建信息与通信技术学院、共建师资团队、共建教学资源、共办比赛,提升专业群建设水平,与一系列直接面向产业的特色企业或者龙头企业的生态链优质企业进行合作,推进现代学徒制、企业订单班、学生实习就业,推动校企合作在本土落地生根。通过多主体参与,多方协同育人,产业打造人才生态,学校提高教学质量,企业降低入职培训成本,助力地区经济发展,实现共建共享共赢共发展。

关键词：产教融合校企双融合作路径

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