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非寄主植物精油对桔小实蝇的驱避效果研究

环境昆虫学报 2024年第5期46卷 1213-1223页

作者：杨洁尹伊秀娟王丽娟李国平李裕展徐建欣高冠群詹儒林王姝逸中国热带农业科学院湛江实验站广东湛江524013 中国热带农业科学院三亚研究院海南三亚572024 天津市农业科学院信息研究所天津300192 天津农学院园艺园林学院天津300384 云南农业大学热带作物学院云南普洱665099 中国热带农业科学院南亚热带作物研究所广东湛江524091 天津市农业发展服务中心天津300061

桔小实蝇Bactrocera dorsalis Hendel幼虫期隐蔽性的取食习性降低了化学防治的效果,而普遍存在的杀虫剂耐药性则加剧了这一问题。利用非寄主植物挥发物驱避害虫是替代化学防治、有效控制虫害的策略之一。为了筛选更有效的植物源产卵驱避... 详细信息

桔小实蝇Bactrocera dorsalis Hendel幼虫期隐蔽性的取食习性降低了化学防治的效果,而普遍存在的杀虫剂耐药性则加剧了这一问题。利用非寄主植物挥发物驱避害虫是替代化学防治、有效控制虫害的策略之一。为了筛选更有效的植物源产卵驱避剂,本研究选取23种非寄主植物精油作为候选材料,进行4轮试验,首先采用行为趋向反应试验,筛选出8种驱避率较高且选择反应率和驱避反应率差异极显著(P<0.01)的非寄主植物精油:绿花白千层、山鸡椒、广藿香、当归、茶树、茴香、薄荷、艾草;然后通过产卵驱避活性试验,筛选出4种驱避率高且处理组与对照组的产卵量差异极显著(P<0.01)的植物精油:绿花白千层、广藿香、当归、茶树。浓度梯度试验表明,浓度为5000μg/mL时,绿花白千层、广藿香、当归驱避率最高,浓度为3000μg/mL时,茶树精油驱避率最高;在最佳浓度下对桔小实蝇产卵驱避持效性分析,结果表明最佳浓度下4种精油处理过的果实,随着时间延长,桔小实蝇产卵孔和产卵量逐渐增加,驱避率逐渐降低,驱避产卵活性逐渐消失,前3 d降速较快,然后逐渐放缓。本研究通过行为趋向反应试验、产卵驱避活性试验、浓度梯度试验和驱避活性持效试验,从23种非寄主植物精油中,筛选到绿花白千层精油对桔小实蝇有较高的产卵驱避活性,通过剂型改良等措施有望开发成植物源驱避剂。

关键词：桔小实蝇精油非寄主植物产卵驱避驱避持效期

A deoxidation thermodynamic model for 304 stainless steel considering multiple-components coupled reactions

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Journal of Iron and Steel Research International 2024年第1期31卷 74-91页

作者： Yan Yan Guang-hao Shang li-ping Zhang Shao-ying li Han-jie guo School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China Beijing Key Laboratory of Special Melting and Preparation of High-End Metal Materials Beijing100083China Henan Jinhui Stainless Steel Industry Group Co. Ltd.Xuchang461500HenanChina Changge Jinhui Recycling Metal R&D Co. Ltd.Xuchang461500HenanChina

A thermodynamic model for predicting the equilibrium oxygens of 304 stainless steel was developed based on the theory of slag-steel equilibrium,the law of mass conservation,and the ion and molecule coexistence *** the developed model,the Fe-Cr-Mn-Si-Al-S-O-melts reaction system and CaO-MgO-CaF_(2)-FeO-MnO-Al_(2)O_(3)-SiO_(2)-Cr2O_(3)slags were *** oxygen contents calculated by the model are in good agreement with experimental results and reference *** equilibrium oxygen contents in 304 stainless steel mainly decrease with increasing binary basicity(w(CaO)/w(SiO_(2)),where w(i)is the mass percentage of component i)and decreasing *** binary basicity at 2.0 while maintaining temperatures lower than 1823 K will keep the oxygen contents in the 304 stainless steel lower than 15×10^(-6).The equilibrium oxygen contents may also be decreased with increasing content of MgO in slags,which is more significant at lower binary ***,a small amount of FeO,MnO,and Al_(2)O_(3)(about 0-2.5 wt.%)in slags has little effect on equilibrium oxygen ***,it is found that the[C]-[O]reaction may occur during refining process but will not significantly affect the equilibrium oxygen contents.

关键词： Complex deoxidation Thermodynamic model Ion and molecule coexistence theory 304 stainless steel Slag-steel reaction

Acute extensive portal and mesenteric venous thrombosis after splenectomy:Treated by interventional thrombolysis with transjugular approach

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World Journal of Gastroenterology 2009年第24期15卷 3038-3045页

作者： Mao-Qiang Wang Han-Ying lin li-ping guo Feng-Yong liu Feng Duan Zhi-Jun Wang Department of Interventional Radiology Chinese PLA General Hospital Beijing 100853 China

AIM:To present a series of cases with symptomatic acute extensive portal vein(PV)and superior mesenteric vein(SMV)thrombosis after splenectomy treated by transjugular intrahepatic approach catheter-directed thrombolysis. METHODS:A total of 6 patients with acute extensive PV-SMV thrombosis after splenectomy were treated by transjugular approach catheter-directed thrombolysis. The mean age of the patients was 41.2 *** access to the portal system via the transjugular approach,pigtail catheter fragmentation of clots, local urokinase injection,and manual aspiration thrombectomy were used for the initial treatment of PV-SMV thrombosis,followed by continuous thrombolytic therapy via an indwelling infusion catheter in the SMV,which was performed for three to six days. Adequate anticoagulation was given during treatment, throughout hospitalization,and after discharge. RESULTS:Technical success was achieved in all 6 *** improvement was seen in these patients within 12-24 h of the *** complications were *** 6 patients were discharged 6-14 d(8±2.5 d)after *** mean duration of follow-up after hospital discharge was 40±16.5 *** and contrast-enhanced computed tomography confirmed patency of the PV and SMV,and no recurrent episodes of PV-SMV thrombosis developed during the follow-up period. CONCLUSION:Catheter-directed thrombolysis via transjugular intrahepatic access is a safe and effective therapy for the management of patients with symptomatic acute extensive PV-SMV thrombosis.

关键词： Mechanical thrombectomy Portal vein Splenectomy Superior mesenteric vein Thrombolysis Thrombosis

Trace element compositions of pyrite and stibnite:implications for the genesis of antimony mineralization in the Yangla Cu skarn deposit,Northwestern Yunnan,China

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Acta Geochimica 2024年第3期43卷 535-554页

作者： ping Pan Xinfu Wang Bo li guo Tang Zuopeng Xiang Faculty of Land and Resource Engineering Kunming University of Science and TechnologyKunming 650093China Kunming Metallurgy College Kunming 650033China School of Earth Science Yunnan UniversityKunming 650500China Kunming Prospecting Design Institute of China Nonferrous Metals Industry Co. LtdKunming 650051China

The Yangla Cu skarn deposit is located in the central part of the Jinshajiang Suture Zone,southwest China,with a total reserve of 150 Mt Cu@1.03%.The newly discovered antimony orebodies at the depth of Yangla are strictly controlled by the stratum,structure,and lithology,which are lenticular and vein-like within the marble fracture zone,which can provide a window into multistage miner-alization and ore genesis at *** can be divided into three types,Cu–Pb–Zn(skarn)pyrite,galena,and sphalerite,Cu(porphyry)chalcopyrite and pyrite,and Sb(hydrothermal)stibnite and *** mineral assem-blages were stibnite+pyrite+calcite+quartz±minor scheelite in antimony *** study presents quantitative measurements of the trace element compositions of pyrite and stibnite from the Yangla antimony *** of pyrite with electron probe microanalysis(EPMA)showed enrichment in Co,Ni,Sb,As,and Mo,and deficit in its S and Fe contents when compared to the stoichiometric con-centrations of S and Fe in *** Sb-related pyrite may belong to sedimentary-reworked genesis and may be modi-fied by hydrothermalfluids,thereby presenting a certain dif-ference(i.e.,crystal morphology,texture,and chemical com-position)compared to the skarn and porphyry Cu-related pyrite in the Yangla Cu skarn *** of stibnite with EPMA and inductively coupled plasma-mass spectrom-etry showed enrichment in As,Pb,Sn,Pb,Cu,and Zn,and presented much higher Sb contents and slightly lower S con-tents when compared to the stoichiometric concentrations of Sb and S in *** analysis of the stibnite trace elements showed correlations for the elemental pairs Cu–Pb,As–Sb,and Sn–Pb,and the coupled substitution equations Sb^(3+)↔Cu^(+)+Pb^(2+),Sb^(3+)↔As^(3+),and Sn^(2+)↔Pb^(2+)may be the major factors governed the incorporating Cu,Pb,As and Sn within the ***,this study preliminary shows that the antimony mineralization may belong to a car-bonate replacement h

关键词： Trace elements Pyrite Stibnite Substitution mechanisms Antimony mineralization Yangla Cu skarn deposit

季节性流感高发期发热门诊就诊患者抗菌药物认知水平和使用行为调查

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中华医院感染学杂志 2024年第8期34卷 1253-1259页

作者：邢京宇郭丽萍贾露荣张洋郝萌萌刘明艳蒋艳中日友好医院医院感染管理办公室北京100029 北京中医药大学管理学院北京100029 中日友好医院信息处北京100029 中日友好医院感染疾病科北京100029

目的在新型冠状病毒感染调整为“乙类乙管传染病”后的第一次季节性流感高发期,对北京某大型三甲综合医院发热门诊患者的抗菌药物认知水平和使用行为进行调查研究。方法对2023年3-4月在该院发热门诊就诊的500例患者,进行抗菌药物认知水... 详细信息

目的在新型冠状病毒感染调整为“乙类乙管传染病”后的第一次季节性流感高发期,对北京某大型三甲综合医院发热门诊患者的抗菌药物认知水平和使用行为进行调查研究。方法对2023年3-4月在该院发热门诊就诊的500例患者,进行抗菌药物认知水平和使用行为问卷调查。同时通过该院信息系统收集和分析该院2023年上半年住院患者医院感染和细菌耐药监测数据等。结果受调查人群的抗菌药物认知率为54.40%,对“抗菌药物不良反应”的不正确认知最严重;使用行为正确率为40.80%,患者存在自行囤药、自行用药、用药时在适应证、剂量和疗程等方面不遵医的不合理行为;该院住院患者碳青霉烯类耐药的鲍氏不动杆菌检出率居于同期多药耐药菌的首位。结论此次调查人群抗菌药物认知率虽然低于《遏制微生物耐药国家行动计划(2022-2025年)》指标要求,但好于既往研究结果;抗菌药物的不合理应用行为呈现多样化;细菌耐药形势有部分加剧苗头。今后应进一步从多个渠道继续加强抗菌药物合理用药管理。

关键词：抗菌药物发热门诊流感认知抗菌药物科学化管理

地方行业高校研究生分类培养协同优化策略与实践

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教育教学论坛 2024年第34期 165-168页

作者：孙巍王志华成庆林国丽萍东北石油大学石油工程学院黑龙江大庆163318

随着研究生规模逐渐扩大,其数量与质量发展失衡,且学术学位和专业学位研究生分类培养模式的实施路径模糊。结合东北石油大学石油与天然气工程学科专业实际,探讨了现阶段高校研究生培养过程同质性问题,构建了高校研究生分类培养模式框架... 详细信息

随着研究生规模逐渐扩大,其数量与质量发展失衡,且学术学位和专业学位研究生分类培养模式的实施路径模糊。结合东北石油大学石油与天然气工程学科专业实际,探讨了现阶段高校研究生培养过程同质性问题,构建了高校研究生分类培养模式框架,探寻了研究生分类培养的优化策略及质量提升路径,积极探索了研究生分类培养模式的教育改革。教学实践表明,该研究生分类培养模式有利于提升地方行业高校工程领域研究生教育的创新实践体系,为培养地方行业特色院校工程领域的高层次人才提供借鉴。

关键词：分类培养学术学位专业学位研究生教育评价体系

Studies　on　the　Reactivities　of　Undecatungstogallates　K＿n［GaW＿（11）O＿（39）M（H＿2O）］·xH＿2O（M＝Mn，Co，Ni，Cu，Cr，FeorZn）

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Chemical Research in Chinese Universities 1995年第1期11卷 1-8页

作者： liU Jing-fu ZHAN Xiao-peng WANG Fu-quan li guo-ping YANG Qi-hua and WANG Jing-ping( Department of Chemistry , Northeast Normal University , Changchun , 130024) NE NORMAL UNIV DEPT CHEMCHANGCHUN 130024PEOPLES R CHINA

ndecatungstogallates K_n[GaW_(11)O_(39)M (H_2O)]· xH_2O (M=Mn, Co , Ni , Cu ,Cr, Fe or Zn) were prepared and their redox properties in solution were investigat-ed using polarographic and cyclic voltammographic methods. Experimental resultsindicated that the heteropolyanions underwent two-step , two-electron tungsten re-duction processes, and each reduction process was accompanied by *** complexes of Cu and Mn exhibit voltammetric redox features corresponding toreduction of Cu￣Ⅰ to Cu￣Ⅰ and oxidation of Mn￣Ⅱ to Mn￣Ⅲ and Mn￣Ⅳ. The title het-eropolyanions show catalysis effect on olefin epoxidation by iodosylbenzene or hy-drogen peroxide.

关键词： Undecatungstogallate with a transition metal Redox property Olefinepoxidation.

A new pteridinedione from Whitmania pigra

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Chinese Chemical Letters 2010年第5期21卷 603-605页

作者： Yun Feng Zheng,Cun Yu li,guo ping Peng,Hong Yang li College of Pharmacy,Nanjing University of Chinese Medicine,Nanjing 210046,China [a] College of Pharmacy Nanjing University of Chinese Medicine Nanjing 210046 China

A new compound,6-methylsulfinylthieno[3,2-g]-2,4(1H,3H)-pteridinedione,was isolated from the water extract of Whitmania pigra *** structure was elucidated on the basis of NMR and ESIMS spectra.

关键词： Whitmania pigra Heterocycle 6-Methylsulfinylthieno[3,2-g]-2,4(1H,3H)-pteridinedione

Carbon footprint and carbon neutrality pathway of green tea in China

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Advances in Climate Change Research 2022年第3期13卷 443-453页

作者： Ming-Bao HE Shi-Xiang ZONG Ying-Chun li Ming-Ming MA Xin MA Kuo li Xue HAN Ming-Yue ZHAO li-ping guo Yin-Long XU Institute of Environment and Sustainable Development in Agriculture Chinese Academy of Agricultural SciencesBeijing 100081China Beijing Key Laboratory for Forest Pest Control Beijing Forestry UniversityBeijing 100083China

With the rising popularity of the concept of“carbon neutralization”,low-carbon products are likely to gain more *** to this,green tea-an important beverage that is widely consumed in China-along with emissions from planting,processing,and use phase should be given ***,quantifying the carbon footprint(CF)of green tea is an essential task in developing the pathway to carbon *** this study,we quantified the CF and mitigation potential of green tea through life cycle assessment,after which we investigated the pathway toward carbon neutrality in 16 major tea-producing regions(except Hainan and Taiwan)in *** system boundary was divided into six subsystems from cradle to grave:cultivation,processing,transport,packaging,consumption,and *** results showed that the total carbon emissions of green tea reached 44.13 Mt CO_(2)eq in 2019,of which 43%came from consumption and 28%from *** were 18.78 Mt CO_(2)eq emissions from fertilizer production and application,while there was a 7.71 Mt CO_(2)eq carbon sink of tea *** average carbon intensity was 24.30 kg CO_(2)eq kg−1 tea,while Shandong and Guizhou ranked as the top two ***,Hubei,and Yunnan Provinces had the largest amounts of carbon emissions at 6.79,6.14,and 5.96 Mt CO_(2)eq,*** 2030,2050 and 2060,total carbon emissions would be reduced by 46%,63%,and 86%,respectively,under carbon neutrality assumption.A small amount of 6.14 Mt CO_(2)eq carbon emissions was retained to be offset by carbon trading or zero-carbon ***,the results indicate that adopting low-carbon fertilizers and clean energies will be a key entry point for carbon-neutral green tea.

关键词： Carbon neutrality Pathway life cycle assessment Carbon footprint Green tea China