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Chinese Science Bulletin 2003年第17期48卷 1853-1856页

作者： liu hongyan, tian yuhong & ding deng department of ecology, college of environmental sciences, Peking University,{3., china department of ecology College of Environmental Sciences Peking University Beijing 100871 China

Different land cover types in Otindag Sandy Land and Bashang area of Hebei Province are linked to a material source of sand stormy weather in beijing based on results of field vegetation and soil survey and laboratory works. Results of grain size analysis show that dust release potential in per unit area of moving sandy land is small, while lowland meadow and meadow steppe in stony hills have high potential of releasing dusts in per unit area during sand stormy weather occurrence. Further considering the effects of vegetation, it is inferred that the moving sandy land served as a material source of past dust storm and the possi-bility of dust release in per unit area is low in current time. Typical steppe in stony hills is undergoing desertification and its dust release possibility in per unit area is high. Farmland has strong potential of release dusts when they are ploughed in spring, but a large amount of therophytes grow and thus prevent dusts from release when cultivation was terminated. Potentials of dust release in per unit area in fixed sand dunes, stony mountain meadow steppe and lowland meadow are low due to high cover of perennials. Sand dune reactivation and desiccation of lakes and lowlands under estimated future climatic change will make them serve as a future material source of sand stormy weather.

关键词：河北北京沙暴土地覆盖砂地坝上地区材料源

Associations of sleeping patterns and isotemporal substitution of other behavior with the prevalence of CKD in Chinese adults

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Frontiers of Medicine 2024年第2期18卷 303-314页

作者： Yi ding Xiaoli Xu Zhuojun Xin Qiuyu Cao Jiaojiao Huang Xianglin Wu Yanan Huo Qin Wan Yingfen Qin Ruying Hu Lixin Shi Qing Su Xuefeng Yu Li Yan Guijun Qin Xulei Tang Gang Chen Min Xu tiange Wang Zhiyun Zhao Zhengnan Gao Guixia Wang Feixia Shen Zuojie Luo Li Chen Qiang Li Zhen Ye Yinfei Zhang Chao liu Youmin Wang Tao Yang Huacong {3. Lulu Chen tianshu Zeng Jiajun Zhao Yiming Mu Shengli Wu yuhong Chen Jieli Lu Weiqing Wang Guang Ning Yu Xu Yufang Bi Mian Li department of Endocrine and Metabolic Diseases Shanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai200025China Shanghai National Clinical Research Center for Metabolic Diseases Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of ChinaShanghai Key Laboratory for Endocrine TumorState Key Laboratory of Medical GenomicsRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai200025China Jiangxi Provincial People’s Hospital Affiliated to Nanchang UniversityNanchang330000China department of Endocrinology The Affiliated Hospital of Southwest Medical UniversityLuzhou646000China department of Endocrinology The First Affiliated Hospital of Guangxi Medical UniversityNanning530000China Zhejiang Provincial Center for Disease Control and Prevention Hangzhou310000China department of Endocrinology Affiliated Hospital of Guiyang Medical UniversityGuiyang550000China Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai200000China Tongji Hospital Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan430000China Sun Yat-sen Memorial Hospital Sun Yat-sen UniversityGuangzhou510000China department of Endocrinology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou450000China department of Endocrinology The First Hospital of Lanzhou UniversityLanzhou730000China Fujian Provincial Hospital Fujian Medical UniversityFuzhou350000China Dalian Municipal Central Hospital Affiliated of Dalian Medical UniversityDalian116000China department of Endocrinology The First Hospital of Jilin UniversityChangchun130000China department of Endocrinology The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou325000China Qilu Hospital of Shandong University Jinan250000China department of Endocrinology The Second Affiliated Hospital of Harbin Medical UniversityHarbin150000China department of Endocrinology Cen

Studies have found a U-shaped relationship between sleep duration and chronic kidney disease(CKD)risk,but limited research evaluated the association of reallocating excessive sleep to other behavior with *** included 10453. participants from the nationwide cohort of the Risk Evaluation of Cancers in Chinese Diabetic Individuals:A Longitudinal Study,with self-reported time of daily-life *** isotemporal substitution models,we found that substituting 1 h of sleeping with sitting,walking,or moderate-to-vigorous physical activity was associated with a lower CKD ***-time physical activity displacement was associated with a greater prevalence reduction than occupational physical activity in working *** stratified analysis,a lower CKD prevalence related to substitution toward physical activity was found in long *** pronounced correlations were observed in long sleepers with diabetes than in those with prediabetes,and they benefited from other behavior substitutions toward a more active *** U-shaped association between sleep duration and CKD prevalence implied the potential effects of insufficient and excessive sleep on the kidneys,in which the pernicious link with oversleep could be reversed by time reallocation to physical *** divergence in the predicted effect on CKD following time reallocation to behavior of different domains and intensities and in subpopulations with diverse metabolic statuses underlined the importance of optimizing sleeping patterns and adjusting integral behavioral composition.

关键词： sleep physical activity chronic kidney disease isotemporal substitution behavioral pattern

Anaerobic benzene biodegradation by a pure bacterial culture of Bacillus cereus under nitrate reducing conditions

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Journal of environmental sciences 2010年第5期22卷 709-715页

作者： Junfeng Dou Aizhong ding Xiang liu Yongchao Du Dong deng Jinsheng Wang college of Water sciences Beijing Normal University Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of Education Beifing 100875 China. department of environmental Science and Engineering Tsinghua University Beijing 100084 China

A pure culture using benzene as sole carbon and energy sources was isolated by screening procedure from gasoline contaminated *** analysis of the 16S rDNA gene sequence,morphological and physiological characteristics showed that the isolated strain was a member of genus Bacillus *** biodegradation performance of benzene by *** was evaluated,and the results showed that benzene could be efficiently biodegraded when the initial benzene concentration was below 150 mg/*** metabolites of anaerobic nitrate-dependent benzene oxidation by strain *** were identified as phenol and *** results of substrate interaction between binary combinations for benzene,phenol and benzoate showed that the simultaneous presence of benzene stimulated the degradation of benzoate,whereas the addition of benzene inhibited the degradation of *** degradation by *** was enhanced by the addition of phenol and benzoate,the enhanced effects were more pronounced at higher *** our knowledge,this is the first report that the isolated bacterial culture of *** can efficiently degraded benzene under nitrate reducing conditions.

关键词： Bacillus cereus nitrate reduction anaerobic biodegradation substrate interaction phenol benzoate

Near-Real-Time Carbon Emission Accounting Technology Toward Carbon Neutrality

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Engineering 2022年第7期8卷 44-51页

作者： Zhu liu Taochun Sun Ying Yu Piyu Ke Zhu deng Chenxi Lu Da Huo Xiang ding department of Earth System Science Tsinghua UniversityBeijing 100084China Gillings School of Global Public Health University of North Carolina at Chapel HillChapel HillNC 27599USA college of Urban and environmental sciences Peking UniversityBeijing 100871China

Climate change is the greatest environmental threat to humans and the planet in the 21st *** anthropogenic greenhouse gas emissions are one of the main causes of the increasing number of extreme climate *** carbon dioxide(CO_(2))emissions showed a linear relationship with cumulative temperature rise since the pre-industrial stage,and this accounts for approximately 80%of the total anthropogenic greenhouse ***,accurate and reliable carbon emission data are the foundation and scientific basis for most emission reduction policymaking and target ***,china has made clear the ambitious goal of achieving the peak of carbon emissions by 203. and achieving carbon neutrality by *** development of a finer-grained spatiotemporal carbon emission database is urgently needed to achieve more accurate carbon emission monitoring for continuous implementation and the iterative improvement of emission reduction ***-real-time carbon emission monitoring is not only a major national demand but also a scientific question at the frontier of this *** article reviews existing annual-based carbon accounting methods,with a focus on the newly developed real-time carbon emission technology and its current application *** also present a framework for the latest near-real-time carbon emission accounting technology that can be widely *** development of relevant data and methods will provide strong database support to the policymaking for china’s“carbon neutrality”***,this article provides an outlook on the future of real-time carbon emission monitoring technology.

关键词： Carbon neutrality Carbon accounting Carbon monitoring

Thermal and environmental stability of poly(4-ethynyl-p-xylylene-co-p-xylylene) thin films

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Chinese Chemical Letters 2015年第4期26卷 459-463页

作者： Yu Liang Xiaopei deng Jay J.Senkevich Hao ding Joerg Lahann department of Material Science and Engineering China University of Geosciences (Beijing) department of Chemical Engineering University of Michigan Massachusetts Institute of Technology Institute for Soldier Nanotechnologies

The aim of this paper was to test the thermal and environmental stability of poly（4-ethynyl-p-xylylene- co-p-xylylene） thin films prepared by chemical vapor deposition （CVD） and to optimize the reaction conditions of the polymer. Fourier transformed infrared spectroscopy （FTIR）, thermogravimetric analysis （TGA） and fluorescence microscopy were employed to investigate the stability of the reactive polymer coatings in various environmental conditions. Chemical reactivity of the thin films were then tested by Huisgen 1,3.dipolar cycloaddition reaction （＂click＂ reaction）. The alkyne functional groups on poly（4- ethynyl-p-xylylene-co-p-xylylene） thin films were found to be stable under ambient storage conditions and thermally stable up to 100 ℃ when annealed at 0.08 Torr in argon. We also optimized the click reaction conditions of azide-functionalized molecules with poly（4-ethynyl-p-xylylene-co-p-xylylene）. The best reaction result was achieved, when copper concentration was 0.5 retool/L, sodium ascorbate concentration to copper concentration was 5：1. In contrast, the azide concentration and temperature had no obvious effect on the surface reaction.

关键词： Chemical vapor depositionPoly( 4-ethynyl-p- xylylene-co-p-xylylene )Thermal stabilityenvironmental stabilityClick reaction

Acclimation of CH_(4)emissions from paddy soil to atmospheric CO_(2)enrichment in a growth chamber experiment

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The Crop Journal 2022年第1期10卷 140-146页

作者： Haoyu Qian Yaguo Jin Jin Chen Shan Huang Yunlong liu Jun Zhang Aixing deng Jianwen Zou Genxing Pan Yanfeng ding Yu Jiang Kees Jan van Groenigen Weijian Zhang Institute of Crop sciences Chinese Academy of Agricultural SciencesBeijing 100081China Jiangsu Key Laboratory of Low Carbon Agriculture and GHGs Mitigation College of Resources and Environmental SciencesNanjing Agricultural UniversityNanjing 210095JiangsuChina Soil and Fertilizer&Resources and environmental Institute Jiangxi Academy of Agricultural ScienceNanchang 330200JiangxiChina Jiangxi Key Laboratory of Crop Physiology Ecology and Genetic BreedingJiangxi Agricultural UniversityNanchang 330045JiangxiChina Center of Agriculture and Climate Change Institute of ResourceEcosystem and Environment of AgricultureNanjing Agricultural UniversityNanjing 210095JiangsuChina Jiangsu Collaborative Innovation Center for Modern Crop Production/Key Laboratory of Crop Physiology and ecology in Southern china Nanjing Agricultural UniversityNanjing 210095JiangsuChina department of Geography College of Life and Environmental SciencesUniversity of ExeterExeter EX44RJUK

Elevated levels of atmospheric CO_(2)(eCO_(2))promote rice growth and increase methane(CH_(4))emissions from rice paddies,because increased input of plant photosynthate to soil stimulates methanogenic ***,temporal trends in the effects of eCO_(2)on rice growth and CH_(4)emissions are still *** investigate changes in the effects of eCO_(2)over time,we conducted a two-season pot experiment in a walk-in growth *** effects of eCO_(2)on rice leaf photosynthetic rate,biomass,and grain yield were similar between growing ***,the effects of eCO_(2)on CH_(4) emissions decreased over *** CO_(2)increased CH_(4)emissions by 48%-101%in the first growing season,but only by 28%-3.%in the second growing *** also identified the microbial process underlying the acclimation of CH4 emissions to atmospheric CO_(2)enrichment:eCO_(2)stimulated the abundance of methanotrophs more strongly in soils that had been previously exposed to eCO_(2)than in soils that had not *** results emphasize the need for long-term eCO_(2)experiments for accurate predictions of terrestrial feedbacks.

关键词： Elevated CO_(2) Methane emissions Rice Methanogens Methanotrophs

Evaluation of health benefit using Ben MAP-CE with an integrated scheme of model and monitor data during Guangzhou Asian Games

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Journal of environmental sciences 2016年第4期28卷 9-18页

作者： Dian ding Yun Zhu Carey Jang Che-Jen Lin Shuxiao Wang Joshua Fu Jian Gao Shuang deng Junping Xie Xuezhen Qiu Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control College of Environmental and Energy South China University of Technology Guangzhou Higher Education Mega Center Guangzhou 510006 China. State environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing 100084 China USEPA/Office of Air Quality Planning & Standards RTP NC27711 USA department of Civil Engineering Lamar University Beaumont TX 77710-0024 USA department of environmental Science and Engineering Tsinghua University Beijing 100084 China department of Civil & environmental Engineering University of Tennessee Knoxville TN 37996-2010 USA Chinese Research Academy of environmental sciences Beijing 100012 China

Guangzhou is the capital and largest city（land area：7287 km2）of Guangdong province in South *** air quality in Guangzhou typically worsens in November due to unfavorable meteorological conditions for pollutant *** the Guangzhou Asian Games in November 2010,the Guangzhou government carried out a number of emission control measures that significantly improved the air *** this paper,we estimated the acute health outcome changes related to the air quality improvement during the 2010 Guangzhou Asian Games using a next-generation,fully-integrated assessment system for air quality and health *** advanced system generates air quality data by fusing model and monitoring data instead of using monitoring data alone,which provides more reliable *** air quality estimates retain the spatial distribution of model results while calibrating the value with *** results show that the mean PM2.5concentration in November 2010 decreased by 3.5μg/m^3.compared to that in 2009 due to the emission control *** the analysis,we estimate that the air quality improvement avoided 106 premature deaths,1869 cases of hospital admission,and 20,026 cases of outpatient *** overall cost benefit of the improved air quality is estimated to be 165 million CNY,with the avoided premature death contributing 90%of this *** research demonstrates that Ben MAP-CE is capable of assessing the health and cost benefits of air pollution control for sound policy making.

关键词： Air quality Health benefit PM2.5 Ben MAP-CE Data fusion Model and monitor data

Legacy effect of elevated CO_(2) and N fertilization on mineralization and retention of rice (Oryza sativa L.) rhizodeposit-C in paddy soil aggregates

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Soil ecology Letters 2022年第1期4卷 78-91页

作者： yuhong Li Hongzhao Yuan Anlei Chen Mouliang Xiao Yangwu deng Rongzhong Ye Zhenke Zhu Kazuyuki Inubushi Jinshui Wu Tida Ge Key Laboratory of Agro-ecological Processes in Subtropical Region&Changsha Research Station for Agricultural and environmental Monitoring Institute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125China School of Resources and environmental Engineering Jiangxi University of Science and TechnologyGanzhou 341000China department of Plant&environmental sciences Pee Dee Research&Education CenterClemson UniversityFlorenceSC 29506USA Graduate School of Horticulture Chiba UniversityMatsudo271-8510Japan University of Chinese Academy of sciences Beijing 100049China

Rhizodeposits in rice paddy soil are important in global C sequestration and *** study explored the effects of elevated CO_(2) and N fertilization during the rice growing season on the subsequent mineralization and retention of rhizodeposit-C in soil aggregates after ***(Oryza sativa L.)was labeled with ^(13.CO_(2) under ambient(400 ppm)and elevated(800 ppm)CO_(2) concentrations with and without N *** harvest,soil with labeled rhizodeposits was collected,separated into three aggregate size fractions,and flood-incubated for 100 *** initial rhizodeposit-^(13.C content of N-fertilized microaggregates was less than 65%of that of non-fertilized *** the incubation of microaggregates separated from N-fertilized soils,3.–9%and 9%–16%more proportion of rhizodeposit-^(13.C was mineralized to ^(13.CO_(2),and incorporated into the microbial biomass,respectively,while less was allocated to soil organic carbon than in the non-fertilized *** CO_(2) increased the rhizodeposit-^(13.C content of all aggregate fractions by 10%–80%,while it reduced cumulative ^(13.CO_(2) emission and the bioavailable C pool size of rhizodeposit-C,especially in N-fertilized soil,except for the silt-clay *** also resulted in up to 23.less rhizodeposit-C incorporated into the microbial biomass of the three soil aggregates,and up to 23.more incorporated into soil organic *** results were relatively weak in the silt-clay *** CO_(2) and N fertilizer applied in rice growing season had a legacy effect on subsequent mineralization and retention of rhizodeposits in paddy soils after harvest,the extent of which varied among the soil aggregates.

关键词： Rice rhizodeposits Isotope labeling Aggregates Elevated carbon dioxide Nitrogen fertilizer

三级甲等医院造口专科护理门诊建设标准指标体系的构建

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中国护理管理 2021年第8期21卷 1163-1168页

作者：司龙妹张佩英刘瑾陶珍晖郭红艳邓俊丁炎明北京大学第一医院泌尿外科 100034 北京大学第一医院整形烧伤科 100034 北京大学第一医院护理部 100034

目的:构建三级甲等医院造口专科护理门诊建设标准指标体系。方法:在文献回顾、质性访谈的基础上形成建设标准初稿。采用德尔菲专家函询法对全国24名专家进行2轮专家函询。结果:2轮专家函询的专家积极系数分别为80%、100%,专家权威系数... 详细信息

目的:构建三级甲等医院造口专科护理门诊建设标准指标体系。方法:在文献回顾、质性访谈的基础上形成建设标准初稿。采用德尔菲专家函询法对全国24名专家进行2轮专家函询。结果:2轮专家函询的专家积极系数分别为80%、100%,专家权威系数分别为0.918、0.915。2轮专家函询中,专家的肯德尔协调系数(W)分别为0.268、0.270(P<0.001)。最终形成的三级甲等医院造口专科护理门诊建设标准包括5个一级指标(岗位管理、环境布局、设施设备、物品设置和专科管理),18个二级指标,46个三级指标。结论:构建的三级甲等医院造口专科护理门诊建设标准指标体系科学合理、可操作性强,能为三级甲等医院造口专科护理门诊的开展提供临床指导。

关键词：造口专科护理门诊建设标准专家函询护理管理

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工作场所空气中硫化氢测定的检测管法评价

中华劳动卫生职业病杂志 2023年第9期41卷 676-680页

作者：代静刘武宾王晨邓海锋闫慧芳丁春光国家卫生健康委职业安全卫生研究中心职业危害物证分析中心北京102308 国家卫生健康委粉尘危害工程防护重点实验室北京102308 北京科思特气体技术有限公司北京100029 中国疾病预防控制中心职业卫生与中毒控制所理化检测室北京100050

目的评价检测管法在工作场所空气中定量检测硫化氢的准确性和适用性。方法于2021年9月,对检测管测定工作场所空气中硫化氢方法的定量下限、准确度、精密度、环境因素、干扰气体等性能指标进行验证,并与GB 11742-89《居住区大气中硫化氢... 详细信息

目的评价检测管法在工作场所空气中定量检测硫化氢的准确性和适用性。方法于2021年9月,对检测管测定工作场所空气中硫化氢方法的定量下限、准确度、精密度、环境因素、干扰气体等性能指标进行验证,并与GB 11742-89《居住区大气中硫化氢卫生检验标准方法亚甲蓝分光光度法》测定结果进行比较,评价检测管法在工作场所空气中定量检测硫化氢的应用效果。结果两种方法测定2.83.4.25和17.00 mg/m^(3.硫化氢浓度的结果差异均无统计学意义(P>0.05),8.50 mg/m^(3.浓度的结果差异有统计学意义(P3.mg/m^(3.,准确度为96.0%~111.0%,精密度为0.70%~6.64%。在温度4℃条件下,测定结果下降3.3.%~13.10%;在湿度50%~80%条件下,测定值的平均值相对误差为-1.67%~4.44%。工作场所中可能存在的干扰气体(包括二氧化碳、一氧化碳、硫醇类、氮氧化物、二氧化硫等)对检测管的测定结果不产生干扰。结论检测管法准确度、精密度均满足检测要求,方法简单、快速、易于推广,可用于工作场所中硫化氢气体浓度的快速检测。

关键词：硫化氢工作场所检测管快速检测