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农药污染场地治理技术体系与安全利用模式及方案

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有色金属（冶炼部分） 2024年第4期 30-40页

作者：段立民蔡博睿邬文浩杨坤浙江大学环境与资源学院环境科学系杭州310058

农药污染场地具有污染成分复杂、异味问题突出、修复治理难度大、安全利用风险高的特点,是当前亟待解决的重点土壤环境问题。“十三五”期间,我国农药污染场地治理技术趋近成熟,安全利用模式初步形成。在总结归纳农药场地治理技术和成... 详细信息

农药污染场地具有污染成分复杂、异味问题突出、修复治理难度大、安全利用风险高的特点,是当前亟待解决的重点土壤环境问题。“十三五”期间,我国农药污染场地治理技术趋近成熟,安全利用模式初步形成。在总结归纳农药场地治理技术和成功案例的基础上,针对污染物类型和土质特性,构建了农药污染场地治理技术体系,提出了基于用地规划、敏感受体和污染物类型的安全利用模式与方案,以期指导农药场地污染风险管控与治理修复工作,为农药污染场地安全利用和科学管理提供依据。

关键词：农药污染场地技术体系安全利用研究进展

政府环保补助对企业绿色技术创新的影响研究——基于创新动机的视角

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西安电子科技大学学报（社会科学版） 2024年第2期34卷 1-17页

作者：段利民李晓西安电子科技大学经济与管理学院陕西西安710119

绿色技术创新是实现“双碳”目标和高质量发展的重要手段。文章基于制度理论和寻租理论,从企业创新动机的角度出发,实证研究了政府环保补助对企业绿色技术创新的影响以及企业数字化转型与ESG表现在二者之间的调节作用。研究发现:第一,... 详细信息

绿色技术创新是实现“双碳”目标和高质量发展的重要手段。文章基于制度理论和寻租理论,从企业创新动机的角度出发,实证研究了政府环保补助对企业绿色技术创新的影响以及企业数字化转型与ESG表现在二者之间的调节作用。研究发现:第一,政府环保补助与企业策略性绿色技术创新呈正相关关系,但与企业实质性绿色技术创新呈“U”型关系;第二,企业数字化转型在政府环保补助与企业实质性绿色技术创新和策略性绿色技术创新之间均起正向调节作用,企业ESG表现仅在政府环保补助与企业实质性绿色技术创新之间起正向调节作用;第三,政府环保补助对企业策略性绿色技术创新的直接促进作用和对企业实质性绿色技术创新的“U”型作用均在规模较大的企业中更显著。研究结论为政府合理制定政策、促进绿色技术创新发展提供了一定参考价值。

关键词：绿色技术创新环保补助数字化转型 ESG表现

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锡林河流域草原生态系统地上生物量时空分布特征及其影响因子

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吉林大学学报（地球科学版） 2024年第2期54卷 604-618页

作者：刘廷玺赵心毓段利民王怡璇黎明扬李媛康内蒙古农业大学水利与土木建筑工程学院呼和浩特010018 内蒙古自治区水资源保护与利用重点实验室呼和浩特010018

为系统地量化环境因子之间的协同关系及其对生物量时空格局的调控,以锡林河流域为研究区域,测量了2020年5月—9月典型草原生态系统地上生物量以及气象因子(包括降水量和气温)、地形因子(包括高程)、土壤因子(包括土壤含水量、干密度、... 详细信息

为系统地量化环境因子之间的协同关系及其对生物量时空格局的调控,以锡林河流域为研究区域,测量了2020年5月—9月典型草原生态系统地上生物量以及气象因子(包括降水量和气温)、地形因子(包括高程)、土壤因子(包括土壤含水量、干密度、有机碳质量分数、全氮质量分数和pH)等三大类共8个环境因子,并通过地理探测器方法定量分析了地上生物量与各环境因子之间的关系。结果表明:1)时间维度上,研究区地上生物量在生长季初期稳定增长,在水热条件最好的7月,植被地上生物量增长最为迅速,在9月3日地上生物量达到峰值,此时流域上、下游地上生物量分别为209.12、147.19 g/m^(2);空间维度上,上游地上生物量显著高于下游(显著性水平p<0.05),地上生物量空间分布格局呈现从东南向西北整体减小的趋势。2)整个生长季中,气象因子(降水量和气温)是地上生物量空间格局的关键驱动因子,其对地上生物量分布格局的解释率在60.0%以上;生长季末期,除气象因子外,土壤pH也成为影响研究区地上生物量分布格局的主要驱动因子。3)生长季各阶段,各环境因子对地上生物量的交互作用均呈现出非线性增强和双因子增强关系。生长季初期,降水量和土壤干密度之间交互作用的影响力最大;生长旺期及末期,随着土壤含水量达到较高水平,土壤干密度与其他环境因子(降水量、气温、pH)的交互作用对流域植被地上生物量影响显著。

关键词：锡林河流域草原地上生物量环境因子地理探测器

淋巴细胞亚群和活化表型在非霍奇金淋巴瘤相关噬血细胞综合征中的表达和诊断价值

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中华血液学杂志 2024年第8期45卷 748-754页

作者：尹光丽王菊娟田甜段丽敏高欣房紫薇许戟仇红霞范磊南京医科大学第一附属医院江苏省人民医院血液科南京

目的探讨外周血淋巴细胞和功能活化状态在非霍奇金淋巴瘤相关噬血细胞综合征(NHL-HLH)中的表达和诊断价值。方法回顾性分析江苏省人民医院2022年9月至2023年9月收治的30例初诊NHL-HLH患者的临床资料, 流式细胞术检测淋巴细胞亚群和功能... 详细信息

目的探讨外周血淋巴细胞和功能活化状态在非霍奇金淋巴瘤相关噬血细胞综合征(NHL-HLH)中的表达和诊断价值。方法回顾性分析江苏省人民医院2022年9月至2023年9月收治的30例初诊NHL-HLH患者的临床资料, 流式细胞术检测淋巴细胞亚群和功能活化指标。选取同期在本院接受治疗的40例初诊NHL且完善淋巴细胞和功能活化指标的患者作为对照组。比较两组淋巴细胞计数和活化指标的差异。运用受试者工作特征曲线和Logistic回归分析识别NHL-HLH的风险因素。结果 NHL-HLH组中, T细胞淋巴瘤12例, B细胞淋巴瘤18例。对照组中, T细胞淋巴瘤19例, B细胞淋巴瘤21例。比较两组发现, NHL-HLH组的CD3+ T、CD4+ T、CD8+ T、NK细胞绝对计数低于对照组(P值均94.2%和CD8+CD38+/CD8+ T细胞>38.4%是预测NHL-HLH发生的危险因素, 回归模型的敏感度和特异度分别为86.7%和86.1%, 曲线下面积达0.94(P94.2%和CD8+CD38+/CD8+ T细胞>38.4%是预测NHL-HLH发生的危险因素, 可协助临床早期诊疗。

关键词：淋巴瘤, 非霍奇金噬血细胞综合征淋巴细胞流式细胞术免疫激活

Influences of landform as a confounding variable on SOM-NDVI association in semiarid Ordos Plateau

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Journal of Arid Land 2012年第4期4卷 450-456页

作者： YanYun LUO TingXi LIU XiXi WANG limin duan College of Water Conservancy and Civil Engineering Inner Mongolia Agricultural University Hohhot 010018 China Hydraulics/Water Resources Laboratory Department of Civil and Environmental Engineering Old Dominion University NorfolkVA 23529-0241 USA

Soil organic matter （SOM） plays an important role in maintaining vegetation cover and thus mitigating land erosion of fragile terrestrial ecosystems such as in the Northern Ordos Plateau of China （NOPC）. However, little information is available on whether and how SOM varies spatially as an intrinsic characteristic of landform in NOPC. The objective of this study was to examine the spatial associations of SOM with landform and vegetation cover. The study was conducted in a 23,000-km2 area within NOPC because this area has landforms of mobile dunes （MD）, flat dunes （FD）, grassy sandy land （GSL）, flat sandy bedrocks （FSB）, and swamps and salt lakes （SW）, which are typical landforms in semiarid ecosystems. SOM was determined using a standard laboratory analysis method for 5 cm topsoil samples collected at 72 locations across the study area. In addition, the 250 m Multitem- poral Moderate Resolution Imaging Spectroradiometer （MODIS） imageries taken in the period from August 2006 to August 2010 were used to extract Normalized Difference Vegetation Index （NDVI） which in turn was used as the surrogate of vegetation cover. Classic and geostatistical methods were used to compare SOM concentration across different landforms. The results indicated that an area with a greater value for NDVI （i.e. better vegetation cover） tended to have a higher SOM concentration regardless of the landform types. However, the association between SOM and NDVI varied from one landform to another. The SW and GSL had a highest SOM concentration, while MD had a lowest concentration. For the study area as a whole and the FD, GSL, and MD, SOM was found to be the sole function of NDVI, whereas, for the FSB, SOM was influenced by several intrinsic variables, namely ground surface altitude, slope, and aspect, as well as NDVI. SOM for the SW landform was found to be a function of NDVI. Furthermore, SOM and NDVI exhibited a consistent spatial pattern of increasing from north to south and from west to east. T

关键词： MODIS NDVI remote sensing soil organic matter spatial pattern topography

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半干旱流域水热变化规律及植被响应

生态学报 2024年第16期44卷 7198-7212页

作者：方青青张思远王国强王运涛段利民刘廷玺姚继平华北电力大学水利与水电工程学院北京102206 北京师范大学水科学研究院北京100875 内蒙古农业大学水利与土木建筑工程学院呼和浩特010018 内蒙古大学生态与环境学院呼和浩特010021

近年来,水热条件显著变化下植被变绿现象发生在我国诸多半干旱流域,尽管发挥了增汇减碳效用,但也加剧了水资源量的短缺。研究水热变化下植被响应有助于理解植被⁃水资源平衡机制,对流域水资源可持续利用与生态保护有重要意义,是国际性的... 详细信息

近年来,水热条件显著变化下植被变绿现象发生在我国诸多半干旱流域,尽管发挥了增汇减碳效用,但也加剧了水资源量的短缺。研究水热变化下植被响应有助于理解植被⁃水资源平衡机制,对流域水资源可持续利用与生态保护有重要意义,是国际性的前沿科学问题。但鲜有研究聚焦植被动态对水热变化的周期性和阶段性响应特征,导致植被变绿和水资源利用的协同机制尚不清晰。将海拉尔河流域中上游作为研究区域,利用趋势分析、小波周期分析等方法分析了1980—2012年海拉尔河流域水热变化特征,从整体趋势和动态过程两个维度探讨了水热变化下植被在时空尺度上的响应原因及影响。结果表明:(1)空间上,年均降水量自西(草原)向东(森林)增加,气温减少;相对于草原区,森林区呈现径流量、植被NDVI大,升温慢、降水降幅大的特点。(2)时间上,流域年均降水和径流量分别以10mm/10a和19.3mm/10a的趋势减小;年均气温和生长季NDVI分别以0.65℃/10a和0.003—0.006/10a显著上升,表现出水热条件的暖干化抑制径流量(“抑流”)和促进植被生长的特征(“促长”),甚至在1998年后,降水回升和气温升高趋于平缓,仍表现出“抑流”和“促长”的特征,体现了水热影响的累积性。(3)整体趋势方面,降水和气温在6.9a、径流和植被NDVI分别在13.8、9.8a存在周期性。植被整体变化趋势主要受温度主导,而植被变绿是径流衰减的重要因素;动态过程方面,径流动态变化和周期性规律主要受降水控制,而植被动态变化和周期性规律受到降水、气温等的综合影响,且响应过程受到累积效应的作用。研究结果提高了对半干旱流域植被和水资源协调关系的认识,可为植被管理与水资源利用提供有效依据。

关键词：水热条件径流变化植被响应水分胁迫

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Clinical Characteristics and Outcomes of Severe or Critical COVID-19 Patients Presenting No Respiratory Symptoms or Fever at Onset

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Engineering 2021年第10期7卷 1452-1458页

作者： Juanjuan Xu Zhengrong Yin Yu Liu Sufei Wang limin duan Yi An Jinshuo Fan Tingting Liao Yang Jin Jianguo Chen Department of Respiratory and Critical Care Medicine NHC Key Laboratory of Pulmonary DiseasesUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Physical Examination Center Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Department of Anesthesiology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Department of Pharmacology School of Basic MedicineTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

It is difficult to identify suspected cases of atypical patients with coronavirus disease 2019(COVID-19),and data on severe or critical patients are *** retrospective study presents the clinical,laboratory,and radiological profiles,treatments,and outcomes of atypical COVID-19 patients without respiratory symptoms or fever at *** study examined ten atypical patients out of 909 severe or critical patients diagnosed with COVID-19 in Wuhan Union Hospital West Campus between 25 January 2020 and 10 February *** were obtained from the electronic medical records of severe or critical patients without respiratory symptoms or fever at *** were followed up to discharge or *** 943 COVID-19 patients,909(96.4%)were severe or critical *** the severe or critical patients,ten(1.1%)presented without respiratory symptoms or fever at *** median age of the ten participants was 63 years(interquartile range(IQR):57–72),and seven participants were *** median time from symptom onset to admission was 14 d(IQR:7–20).Eight of the ten patients had chronic *** patients had fatigue(n=5),headache or dizziness(n=4),diarrhea(n=5),anorexia(n=3),nausea or vomiting(n=3),and eye discomfort(n=1).Four patients were found to have *** examination revealed that nine patients had bilateral pneumonia and one had unilateral ***,two patients died and eight were *** the discharged patients,the median time from admission to discharge lasted 24 d(IQR:13–43).In summary,some severe or critical COVID-19 patients were found to have no respiratory symptoms or fever at *** such atypical cases should be identified and quarantined as early as possible,since they tend to have a prolonged hospital stay or fatal *** computed tomography(CT)scan and nucleic acid detection should be performed immediately on close contacts of COVID-19 patients to screen out those with atypical infections,even if the contac

关键词： SARS-CoV-2 COVID-19 Atypical clinical characteristics

Clinical features of multiple myeloma patients with isolated extramedullary relapse

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The Journal of Biomedical Research 2018年第4期32卷 264-269页

作者： Xiaoyan Qu Lijuan Chen Tian Tian limin duan Ruinan Lu Hua Lu Hanxin Wu Jianyong Li Department of Hematology First Affiliated Hospital of Nanjing Medical UniversityJiangsu Province Hospital

This study sought to analyze the clinical features and prognosis of multiple myeloma with isolated extramedullary relapse and with the absence of systemic *** clinical features and outcome were retrospectively analyzed in six multiple myeloma *** patients had secretory multiple myeloma at *** relapsed,the dissociation between medullary and extramedullary response was *** serum or urine monoclonal component was extremely low or *** plasma cells in bone marrow were 〈5%.All patients received new targeted therapies（thalidomide or bortezomib） before extramedullary *** is difficult to achieve second remission for *** in those showing response,the duration of response was extremely *** median of overall survival from diagnosis and from extramedullary relapse was 19 months and 6 months,*** overall survival was significantly shorter compared to the patients without extramedullary involvement（84 months,P= 0.001）.These patients exhibited a special and rare relapse *** with this relapse pattern were resistant to current therapies,including novel targeted agents and associated with poor prognosis.

关键词： multiple myeloma extramedullary clinical feature prognosis

One-dimensional metal phosphonates based on 6-phosphononicotinic acid:A structural and magnetic study

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Science China Chemistry 2010年第10期53卷 2112-2117页

作者： WANG PengFei, duan Yan & ZHENG limin State Key Laboratory of Coordination Chemistry Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China State Key Laboratory of Coordination Chemistry Coordination Chemistry Institute School of Chemistry and Chemical Engineering Nanjing University Nanjing China

The reactions of 6-phosphononicotinic acid (pnaH3) and metal salts result in three new compounds, namely, M(pnaH)-(H2O)3·H2O [M = Co(Ⅱ) (1), Ni(Ⅱ) (2), Zn(Ⅱ) (3)]. These compounds are isostructural and contain 21 helical chains made up of corner-sharing {MO5N} octahedra and {PO3C} tetrahedra. The chains are further connected by extensive hydrogen bonds to form a three-dimensional supramolecular structure. Magnetic studies reveal that dominant antiferromagnetic interactions are mediated in both 1 and 2. Interestingly the dehydrated compound 1 shows metamagnetic behavior at low temperature.

关键词： carboxylate-phosphonate coordination polymer magnetic property metamagnetism