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Soil type and wetting intensity control the enhancement extent of N_(2)O efflux in soil with drought and rewetting cycles

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International Soil and Water Conservation Research 2024年第1期12卷 137-144页

作者： panpan jiao Lei Yang Zhongwu Li Peng Zheng Xiaodong Nie School of Geographical Sciences Hunan Normal UniversityChangsha 410081China State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau The Research Center of Soil and Water Conservation and Ecological EnvironmentChinese Academy of Sciences and Ministry of EducationYangling 712100China Institute of Soil and Water Conservation Chinese Academy of Sciences and Ministry of Water ResourcesYangling 712100China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China

Climate change alters the intensity and frequency of drought and rewetting(D/W)events;however,the influence patterns of D/W on soil N_(2)O efflux in the water-limited area were not fully understood.Therefore,the impacts of D/W cycles varying in different extent of rewetting and frequency to N_(2)O efflux in two kinds of soil on the Loess Plateau were investigated.The incubation conditions consisted of 1)D/W treatments with four 7-day cycles from 10%water holding capacity(WHC)to 60%WHC or 90%WHC,2)constant moisture of 60%WHC and 90%WHC.The pulse of N_(2)O efflux rate under 10-60%WHC treatment was higher than that under 10-90%WHC treatment in calcic cambisols,while opposite trend was observed in earth-cumuli-orthic anthrosols.Meanwhile,the pulse of N_(2)O efflux rate decreased as cycle number increased for different wetting intensities and soil types.The direct N_(2)O efflux under 10-60%WHC and 10-90%WHC treatments were 5.49 and 1.89μg N_(2)O-N g^(-1)soil in calcic cambisols,with those being 1.92 and 10.85μg N_(2)O-N g^(-1)soil in earth-cumuli-orthic anthrosols,respectively.The N loss in earth-cumuli-orthic anthrosols was approximately 5.74 times greater than that in calcic cambisols under 10-90%WHC treatment,whereas the N loss under 10-60%WHC treatment was about 2.86 times greater in calcic cambisols than that in earth-cumuli-orthic anthrosols.This study suggested that extreme rainfall events can enhance the N_(2)O efflux and N loss in agricultural soils on the Loess Plateau in terms of soil type and wetting intensity,which should not be ignored in the N fertilizer management.

关键词： Drought/rewetting cycles N_(2)O efflux Wetting intensity Microbial biomass N Dissolved organic N Loess plateau

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Drying-rewetting cycles reduce bacterial diversity and carbon loss in soil on the Loess Plateau of China

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Pedosphere 2023年第6期33卷 838-848页

作者： panpan jiao Haibing XIAO Zhongwu LI Lei YANG Peng ZHENG State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Research Center of Soil and Water Conservation and Ecological EnvironmentChinese Academy of Sciences and Ministry of EducationYangling 712100China Institute of Soil and Water Conservation Chinese Academy of Sciences and Ministry of Water ResourcesYangling 712100China University of Chinese Academy of Sciences Beijing 100049China State Environmental Protection Key Laboratory of Soil Health and Green Remediation Huazhong Agricultural UniversityWuhan 430070China College of Resources and Environmental Sciences Hunan Normal UniversityChangsha 410081China Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China

With global climate change, soil drying-rewetting(DRW) events have intensified and occurred frequently on the Loess Plateau of China. However, the extent to which the DRW cycles with different wetting intensities and cycle numbers alter microbial community and respiration is barely understood. Here,indoor DRW one and four cycles treatments were implemented on soil samples obtained from the Loess Plateau, involving increase of soil moisture from10% water-holding capacity(WHC) to 60% and 90% WHC(i.e., 10%–60% and 10%–90% WHC, respectively). Constant soil moistures of 10%, 60%,and 90% WHC were used as the controls. The results showed that bacterial diversity and richness decreased and those of fungi remained unchanged under DRW treatments compared to the controls. Under all moisture levels, Actinobacteriota and Ascomycota were the most dominant bacterial and fungal phyla,respectively. The bacterial network was more complex than that of fungi, indicating that bacteria had a greater potential for interaction and niche sharing under DRW treatments. The pulse of respiration rate declined as the DRW cycle increased under 10%–60% WHC, but remained similar for different cycles under 10%–90% WHC. Moreover, the DRW treatments reduced the overall carbon loss, and the direct carbon release under 10%–60% WHC was larger than that under 10%–90% WHC. The cumulative CO_(2) emissions after four DRW cycles were significantly positively correlated with microbial biomass carbon and negatively correlated with fungal richness(Chao 1).

关键词： bacterial network cumulative CO_(2)emissions fungal richness microbial biomass carbon microbial community respiration rate soil moisture

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Biodegradation of 3,5-dimethyl-2,4-dichlorophenol in saline wastewater by newly isolated Penicillium sp.yz11-22N2

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Journal of Environmental Sciences 2017年第7期29卷 211-220页

作者： Zhou Yan Huijun He Chunping Yang Guangming Zeng Le Luo panpan jiao Huiru Li Li Lu College of Environmental Science and Engineering Hunan UniversityChangsha 410082China Key Laboratory of Environmental Biology and Pollution Control Hunan UniversityMinistry of EducationChangsha 410082China Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling College of Environmental Science and EngineeringZhejiang Gonqshang UniversityHangzhouZhejiang 310018China

In this study,the performance of 3,5-dimethyl-2,4-dichlorophenol（DCMX） degradation by a screened strain was investigated.18 S r DNA and the neighbor-joining method were used for identification of the isolated strain.The results of phylogenetic analysis and scanning electron micrographs showed that the most probable identity of the screened strain should be Penicillium sp.Growth characteristics of Penicillium sp.and degradation processes of DCMX were examined.Fourier transform infrared spectroscopy of the inoculated DCMX solution was recorded,which supported the capacity of DCMX degradation by the screened Penicillium sp.Under different salinity conditions,the highest growth rate and removal efficiency for DCMX were obtained at p H 6.0.The removal efficiency decreased from 100%to 66% when the DCMX concentration increased from 5 to 60 mg/L,respectively.Using a Box–Behnken design,the maximum DCMX removal efficiency was determined to be 98.4%.With acclimation to salinity,higher removal efficiency could be achieved.The results demonstrate that the screened Penicillium sp.has the capability for degradation of DCMX.

关键词： Saline wastewater 3,5-Dimethyl-2,4-dichlorophenol Penicillium sp. Laccase

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A pilot study on Paxlovid therapy for hemodialysis patients with severe acute respiratory syndrome coronavirus 2 infections

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Frontiers of Medicine 2024年第1期18卷 169-179页

作者： Xu Hao Zhiyao Bao Ranran Dai Xiaojing Wu Xin Li Muyin Zhang Hao Li Lili Xu panpan Qiao Xuefei Liu Weiting Hu Ze Zhang Jie Fang Min Zhou Weiming Wang Jieming Qu Department of Nephrology Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai200025China Department of Pulmonary and Critical Care Medicine Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai200025China Institute of Respiratory Diseases Shanghai Jiao Tong University School of MedicineShanghai200025China Department of Pharmacy Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai200025China

We aimed to investigate the safety and efficacy of nirmatrelvir/ritonavir(Paxlovid)therapy for hemodialysis-dependent patients with severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection.Thirteen hemodialysis patients infected with the Omicron variant of SARS-CoV-2 from April 3 to May 30,2022,were recruited.Laboratory parameters and chest CT(computed tomography)imaging were analyzed.The treatment group included six patients who received 150 mg/100 mg of Paxlovid orally once daily for 5 days,whereas the control group included seven patients who received basic treatment.No serious adverse reactions or safety events were recorded.Four control patients progressed to moderate disease,and none in the treatment group showed progression of chest CT findings(P<0.05).Paxlovid therapy tended toward early viral clearance and low viral load on Day 8.Moreover,83.3%of the patients in the treatment group and 57.1%of the patients in the control group turned negative within 22 days.In the Paxlovid treatment group,we found significantly increased levels of lymphocytes(P=0.03)and eosinophils(P=0.02)and decreased levels of D-dimer on Day 8 compared with those on Day 1.Paxlovid therapy showed a potential therapeutic effect with good tolerance in hemodialysis patients.The optimal dose and effectiveness evaluation must be further investigated in a largeer cohort.

关键词： Paxlovid hemodialysis SARS-CoV-2 viral load chest CT scan

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Dependence of cumulative CO_(2) emission and microbial diversity on the wetting intensity in drying-rewetting cycles in agriculture soil on the Loess Plateau

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Soil Ecology Letters 2023年第2期5卷 65-76页

作者： panpan jiao Lei Yang Xiaodong Nie Zhongwu Li Lin Liu Peng Zheng State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau The Research Center of Soil and Water Conservation and Ecological EnvironmentChinese Academy of Sciences and Ministry of EducationYangling 712100China Institute of Soil and Water Conservation Chinese Academy of Sciences and Ministry of Water ResourcesYangling 712100China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China College of Resources and Environmental Sciences Hunan Normal UniversityChangsha 410081China College of Geography and Environment Shandong Normal UniversityJinan 250014China

Altered drying-rewetting(DRW)procedures due to climate change may influence soil microbial properties and microbially-mediated carbon cycling in arid and semi-arid regions.However,the effects of DRW of different intensities on the microbial properties and respiration are not well understood.Thus,the responsive patterns of microbial communities and carbon mineralization in agriculture soil on the Chinese Loess Plateau to DRW treatments with different wetting intensities(5%-25% and 5%-36%)and frequency(1-cycle to 4-cycle)were investigated.Continuous moisture levels of 5%,25% and 36% were used as control.Results revealed that the reduction of bacterial diversity and richness were greater for 5%-36% than 5%-25% treatment,while diversity of fungi was similar for different wetting intensities.Bacterial communities became clustered by wetting intensity rather than cycle number,however fungal community was unaffected by DRW.The complexity of bacterial co-occurrence network increased because of higher nodes,edges,average degree,diameter and average cluster coefficient after 4-cycles,and the interaction was more complex after 1-cycle for fungi.Rewetting caused a pulse-like increase of respiration rate,and the pulse amplitude was greater for DRW with high rewetting intensity and decreased with the increase of cycle number.The cumulative CO_(2) emission for DRW treatments was lower than that for the continuous moisture conditions.The net reduction of carbon release for 5%-36% treatment was 1.18 times higher than that for 5%-25% treatment.Our study provides experimental evidence of the positive potential of DRW processes for maintaining soil carbon stock in an agriculture system on the Loess Plateau.

关键词： Wetting intensity Drying-rewetting cycles Microbial communities Birch effect CO_(2)emission

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基于ARIMAX 模型的中国税收收入预测与分析

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高师理科学刊 2024年第5期44卷 22-27页

作者：赵盼盼张迷焦力宾营口理工学院基础教研部辽宁营口115014 兰考县统计局河南兰考475399 大连理工大学电子信息与电气工程学部辽宁大连116024

根据我国1978—2019年间的税收收入、国内生产总值和财政支出数据,利用R软件,对税收收入建立ARIMA模型,又以国内生产总值和财政支出为协变量,对税收收入建立ARIMAX模型.根据两个模型分别预测2020—2022年税收收入,将预测值与真实值对比... 详细信息

根据我国1978—2019年间的税收收入、国内生产总值和财政支出数据,利用R软件,对税收收入建立ARIMA模型,又以国内生产总值和财政支出为协变量,对税收收入建立ARIMAX模型.根据两个模型分别预测2020—2022年税收收入,将预测值与真实值对比,计算得到相对误差和平均绝对百分比误差,发现与ARIMA模型相比,ARIMAX模型误差更小,精度更高,预测更准确.因此,利用ARIMAX模型得到2023—2025年税收收入的预测值.

关键词： ARIMAX模型税收收入国内生产总值财政支出预测

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外倒转术成功的影响因素:118例分析

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中华围产医学杂志 2024年第3期27卷 220-225页

作者：李根霞赵盼盼程春花谢明坤孟献荣徐清华李娇郑州大学第三附属医院产科郑州450052

目的探讨影响外倒转术成功的因素。方法回顾性选择2015年7月至2021年7月于郑州大学第三附属医院因臀位或横位行外倒转术,且由同一术者操作的产妇作为研究对象(n=118)。应用单因素及logistic回归分析探讨外倒转术成功的临床影响因素;应... 详细信息

目的探讨影响外倒转术成功的因素。方法回顾性选择2015年7月至2021年7月于郑州大学第三附属医院因臀位或横位行外倒转术,且由同一术者操作的产妇作为研究对象(n=118)。应用单因素及logistic回归分析探讨外倒转术成功的临床影响因素;应用受试者工作特征(receiver operating characteristic,ROC)曲线分析手术孕周及羊水指数的最佳界值,评价这些影响因素预测外倒转术成功的价值。结果(1)118例中,外倒转术成功77例(65.3%),其中初产妇成功率为49.1%(27/55),经产妇成功率为79.4%(50/63);56.8%(67/118)经阴道分娩。(2)118例中的19例(16.1%)发生并发症,主要并发症为胎心异常(13例,11.0%)、脐带先露和胎位复转(各2例,分别占1.7%),严重并发症为胎儿宫内死亡和胎盘早剥(各1例,分别占0.8%)。外倒转成功者并发症发生率为7.8%(6/77),低于外倒转失败者的31.7%(13/41)(χ^(2)=11.33,P=0.001)。(3)多因素分析显示,手术孕周11.10 cm和经产妇是影响外倒转术成功的因素[OR值(95%CI)分别为0.561(0.351~0.897)、1.173(1.018~1.351)和4.201(1.547~11.404),P值均<0.05]。(4)手术孕周、羊水指数及产次三者联合的ROC曲线下面积为0.744(95%CI:0.640~0.848,P<0.001),其约登指数为0.518,灵敏度为70.0%,特异度为81.8%。结论手术孕周、羊水指数及经产妇与外倒转术成功相关。三者联合对手术成功有一定的预测价值。

关键词：倒转术,胎位臀先露影响因素分析

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Role of Microalloyed Y and Gd in Improving the Corrosion Resistance of Rolled Mg-3Al-1Zn Alloy

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Acta Metallurgica Sinica(English Letters) 2022年第6期35卷 941-947页

作者： panpan Wang Haitao Jiang Yujiao Wang Yun Zhang Jingchao Tao Shanghai Key Laboratory of Materials Laser Processing and Modification and National Engineering Research Center of Light Alloy Net FormingSchool of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Institute of Engineering Technology University of Science and TechnologyBeijingBeijing 100083China

The corrosion performances of rolled AZ31 alloy with addition of Y and Gd were comparatively investigated. The corrosion rates of AZ31 alloy modified with Y and Gd were 3.3 and 3.7 mm/y immersing for 24 h in 3.5 wt% NaCl solution, respectively, which were much lower than that of AZ31 alloy(23.6 mm/y). The remarkable improvement in corrosion performance by adding Y or Gd was ascribed to preferentially form less noble Al_(2)Y or Al_(6)GdMn_(6) and more protective corrosion product layer, resulting in the reduction in H_(2) evolution rate and the enhancement of passivity.

关键词： AZ31 alloy Second phases Volta potential diff erence Y Gd

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Fabrication of ZnO with tunable morphology through a facile treatment of Zn-based coordination polymers

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Science China Chemistry 2015年第3期58卷 411-416页

作者： panpan Su jiao Zhao Feng Rong Can Li Qihua Yang State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences

The morphology and structure of zinc oxide(ZnO), one of the important semiconductors, are relevant to its properties and applications. The preparation of ZnO with tunable morphology and desired structure is an attractive topic in the field of material synthesis. This work reports a facile method for the synthesis of Zn O with controllable morphology and crystal orientation using Zn-based coordination polymer particles(Zn-CPP) as precursors. Using hydrothermal method, Zn-CPP with morphologies of microrod, nanoplate, flower-like, arrow-tipped microsheet, and square cylinder were successfully synthesized via the coordination between metal ions Zn2+ and organic ligand 1,4,5,8-naphthalenetetracarboxylic dianhydride in aqueous solution. Subsequent thermal treatment of the Zn-CPP successfully resulted in the formation of porous Zn O with similar morphology to Zn-CPP. It is also found that the Zn O with enhanced(002) orientation could be obtained from Zn-CPP with preferred(002) orientation. This strategy could be extended for the preparation of other metal oxides with desired shape and structure.

关键词：配位聚合物氧化锌可调谐形态制备锌基晶体取向材料合成

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The SUPER reporting guideline suggested for reporting of surgical technique

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Hepatobiliary Surgery and Nutrition 2023年第4期12卷 534-544,I0024-I0026页

作者： Kaiping Zhang Yanfang Ma Jinlin Wu Qianling Shi Leandro Cardoso Barchi Marco Scarci Rene Horsleben Petersen Calvin S.H.Ng Steven Hochwald Ryuichi Waseda Fabio Davoli Robert Fruscio Giovanni Battista Levi Sandri Michel Gonzalez Benjamin Wei Guillaume Piessen Jianfei Shen Xianzhuo Zhang panpan jiao Yulong He Nuria M.Novoa Benedetta Bedetti Sebastien Gilbert Alan D.L.Sihoe Alper Toker Alfonso Fiorelli Marcelo F.Jimenez Toni Lerut Aung Y.Oo Grace S.Li Xueqin Tang Yawen Lu Hussein Elkhayat Tomaz Stupnik Tanel Laisaar Firas Abu Akar Diego Gonzalez-Rivas Zhanhao Su Bin Qiu Stephen D.Wang Yaolong Chen Shugeng Gao Editorial Office AME Publishing CompanyHong KongChina School of Chinese Medicine Hong Kong Baptist UniversityHong KongChina Department of Cardiovascular Surgery Guangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesGuangzhouChina Evidence-based Medicine Center School of Basic Medical SciencesLanzhou UniversityLanzhouChina Lanzhou University Institute of Health Data Science LanzhouChina Digestive Surgery Division Department of GastroenterologyUniversity of Sao Paulo School of MedicineSão PauloBrazil Department of Cardiothoracic Surgery Imperial College Healthcare NHS TrustLondonUK Department of Cardiothoracic Surgery University Hospital of CopenhagenRigshospitaletCopenhagenDenmark The Chinese University of Hong Kong Prince of Wales HospitalShatinNew TerritoriesHong KongChina Department of Surgical Oncology Roswell Park Cancer InstituteBuffaloNYUSA Department of General Thoracic Breast and Pediatric SurgeryFukuoka UniversityFukuokaJapan Department of Thoracic Surgery AUSL RomagnaS.Maria delle Croci Teaching HospitalRavennaItaly Clinic of Obstetrics and Gynecology University of Milan-BicoccaSan Gerardo HospitalMonzaItaly Division of General Surgery and Liver Transplantation S.Camillo HospitalRomeItaly Service of Thoracic Surgery Lausanne University Hospital(CHUV)LausanneSwitzerland Division of Cardiothoracic Surgery Department of SurgeryUniversity of Alabama BirminghamBirminghamALUSA University of Lille CNRSInsermCHU LilleUMR9020-U1277-CANTHER-Cancer Heterogeneity Plasticity and Resistance to TherapiesLilleFrance Department of Cardiothoracic Surgery Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical UniversityLinhaiChina The First School of Clinical Medicine Lanzhou UniversityLanzhouChina Thoracic Surgery Service University Hospital of SalamancaBiomedical Institute of SalamancaSalamancaSpain Department of Thoracic Surgery Helios Clinic Bonn/Rhein SiegBonnGermany Division of Thoracic Surgery Department of SurgeryThe Ottawa

Background:Existing reporting guidelines pay insufficient attention to the detail and comprehensiveness reporting of surgical technique.The Surgical techniqUe rePorting chEcklist and standaRds(SUPER)aims to address this gap by defining reporting standards for surgical technique.The SUPER guideline intends to apply to articles that encompass surgical technique in any study design,surgical discipline,and stage of surgical innovation.Methods:Following the EQUATOR(Enhancing the QUAlity and Transparency Of health Research)Network approach,16 surgeons,journal editors,and methodologists reviewed existing reporting guidelines relating to surgical technique,reviewed papers from 15 top journals,and brainstormed to draft initial items for the SUPER.The initial items were revised through a three-round Delphi survey from 21 multidisciplinary Delphi panel experts from 13 countries and regions.The final SUPER items were formed after an online consensus meeting to resolve disagreements and a three-round wording refinement by all 16 SUPER working group members and five SUPER consultants.Results:The SUPER reporting guideline includes 22 items that are considered essential for good and informative surgical technique reporting.The items are divided into six sections:background,rationale,and objectives(items 1 to 5);preoperative preparations and requirements(items 6 to 9);surgical technique details(items 10 to 15);postoperative considerations and tasks(items 16 to 19);summary and prospect(items 20 and 21);and other information(item 22).Conclusions:The SUPER reporting guideline has the potential to guide detailed,comprehensive,and transparent surgical technique reporting for surgeons.It may also assist journal editors,peer reviewers,systematic reviewers,and guideline developers in the evaluation of surgical technique papers and help practitioners to better understand and reproduce surgical technique.

关键词： Surgical technique surgical innovation reporting guideline reporting checklist Surgical techniqUe rePorting chEcklist and standaRds(SUPER)

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