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Science China Chemistry 2014年第10期57卷 1330-1339页

作者： FU yao-Tsung YI YuanPing COROPCEANU Veaceslav RISKO Chad AZIZ Saadullah G. BRDAS jean-Luc School of Chemistry & Biochemistry and Center for Organic Photonics and Electronics Georgia Institute of Technology Key Laboratory of Organic Solids Beijing National Laboratory for Molecular Sciences (BNLMS) Institute of Chemistry Chinese Academy of Sciences Department of Chemistry King Abdulaziz University

We review some of the computational methodologies used in our research group to develop a better understanding of the geometric and electronic structures of organic-organic interfaces present in the active layer of organic solar cells. We focus in particular on the exciton-dissociation and charge-transfer processes at the pentacene-fullerene interface. We also discuss the local morphology at this interface on the basis of molecular dynamics simulations.

关键词： organic photovoltaics organic-organic interface multi-scale simulations

Organochlorine pesticides in soils under different land usage in the Taihu Lake region, China

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Journal of Environmental Sciences 2007年第5期19卷 584-590页

作者： WANG Fang JIANG Xin BIAN Yong-rong yao Fen-xia GAO Hong-jian YU Gui-fen jean Charles MUNCH Reiner SCHROLL State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 China Institute of Soil Ecology GSF-National Research Center for Environment and Health Neuherberg 85764 Germany

A field study was conducted in the Taihu Lake region, China in 2004 to reveal the organochlorine pesticide concentrations in soils after the ban of these substances in the year 1983. Thirteen organochlorine pesticides （OCPs） were analyzed in soils from paddy field, tree land and fallow land. Total organochlorine pesticide residues were higher in agricultural soils than in uncultivated fallow land soils. Among all the pesticides, ΣDDX （DDD, DDE and DDT） had the highest concentration for all the soil samples, ranging from 3.10 ng/g to 166.55 ng/g with a mean value of 57.04 ng/g and followed by ΣHCH, ranging from 0.73 ng/g to 60.97 ng/g with a mean value of 24.06 ng/g. Dieldrin, endrin, HCB and α-endosulfan were also found in soils with less than 15 ng/g. Ratios of p,p＇-（DDD＋DDE）/DDT in soils under three land usages were： paddy field 〉 tree land 〉 fallow land, indicating that land usage inlfuenced the degradation of DDT in soils. Ratios of p,p＇-（DDD＋DDE）/DDT 〉1, showing aged residues of DDTs in soils of the Taihu Lake region. The results were discussed with data from a former study that showed very low actual concentrations of HCH and DDT in soils in the Taihu Lake region, but according to the chemical half-lives and their concentrations in soils in 1980s, the concentration of DDT in soils seemed to be underestimated. In any case our data show that the ban on the use of HCH and DDT resulted in a tremendous reduction of these pesticide residues in soils, but there are still high amounts of pesticide residues in soils, which need more remediation processes.

关键词： DDT HCH land-use pesticide residue degradation

RELATIONSHIP BASED ON FIRSTS

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Beijing Review 2017年第2期60卷 16-17页

作者： jean-jacques de Dardel

Beijing Review： In recent years, China and Switzerland have maintained intensive high-level exchanges, as frequent bilateral meetings between senior officials demonstrate. What do you think are the major reasons for ... 详细信息

关键词：英语阅读理解人物

Heap-Leaching of Low-Grade Uranium Ore at SOMAIR： From Laboratory Tests to Production of 700 Tonnes U Per Year

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Journal of Chemistry and Chemical Engineering 2011年第6期5卷 549-557页

作者： Nicolas Durupt jean jacques Blanvillain ARE＇A NC Service d＇Etudes de Proeddds et d ＇Analyses （SEPA） BP 71 87250 Bessines sur Gartempe France

In 2006, SOMAIR decided to increase the uranium production by 50% using heap leaching for the treatment of low grade ores. These ores, which come from different lodes with various properties, have been studied in four steps：（ 1 ） Lab tests： to compare the ores （characterization, acid consumptions, recovery...）; （2） Column tests on an average sample： to define significant parameters for a feasibility study; （3） Column tests on specific samples： to optimize recovery for each ore and identify problems of percolation due to the clays; （4） Pilot tests in large boxes （stalls）： to validate process parameters. Uranium production by heap leaching started in July 2009.

关键词： Uranium heap-leaching low grade ores clays column tests acid consumption.

Study of intracellular anabolism of 5-fluorouracil and incorporation in nucleic acids based on an LC-HRMS method

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Journal of Pharmaceutical Analysis 2021年第1期11卷 77-87页

作者： Christelle Machon Frederic Catez Nicole Dalla Venezia Floriane Vanhalle Laetitia Guyot Anne Vincent Maxime Garcia Beatrice Roy jean-jacques Diaz Jerome Guitton Laboratoire de Chimie Analytique Faculte de Pharmacie de LyonUniversite Lyon 18 Avenue RockefellerLyon69373France Laboratoire de Biochimie et de Pharmaco-toxicologie Centre Hospitalier Lyon-SudeHCLPierre Benite69495France Inserm U1052 CNRS UMR5286 Centre de Recherche en Cancerologie de LyonF-69000 LyonFrance.Centre Leon BerardF-69008 LyonFranceUniversite de Lyon 1F-69000 LyonFrance Institut des Biomolecules Max Mousseron(IBMM) UMR 5247 CNRSUniversite de MontpellierENSCMCampus TrioletMontpellierFrance Laboratoire de toxicologie Faculte de pharmacie de Lyon8 avenue RockefellerF-69373 LyonFrance

5-Fluorouracil(5-FU)is an anticancer drug extensively used for different *** metabolic activation leads to several nucleoside and nucleotide metabolites essential to exert its cytotoxic activity on multiple cellular targets such as enzymes,DNA and *** this paper,we describe the development of a method based on liquid chromatography coupled with high resolution mass spectrometry suitable for the simultaneous determination of the ten anabolic metabolites(nucleoside,nucleotide and sugar nucleotide)of *** chromatographic separationwas optimized on a porous graphitic carbon column allowing the analysis of the metabolites of 5-FU as well as endogenous *** detection was performed on an Orbitrap■tandem mass *** of the method was verified in intracellular content and in RNA *** limit of detection was equal to 12 pg injected on column for nucleoside metabolites of 5-FU and 150 pg injected on column for mono-and tri-phosphate nucleotide *** effect was evaluated in cellular contents,DNA and RNA extracts for nucleoside and nucleotides *** method was successfully applied to i)measure the proportion of each anabolic metabolite of 5-FU in cellular contents,ii)follow the consequence of inhibition of enzymes on the endogenous nucleotide pools,iii)study the incorporation of metabolites of 5-FU into RNA and DNA,and iv)to determine the incorporation rate of 5-FUrd into 18 S and 28 S sub-units of rRNA.

关键词： 5-Fluorouracil LC-MS-HRMS Nucleotide RNA DNA Incorporation rate

Enteric parasites prevalence at Saint Camille Medical Centre in Ouagadougou,Burkina Faso

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Asian Pacific Journal of Tropical Medicine 2011年第5期4卷 401-403页

作者： Simplice Damintoti Karou Drissa Sanou Djeneba Ouermi Salvatore Pignatelli Virginio Pietra Remy Moret jean Baptiste Nikiema jacques Simpore Centre de Recherche Biomoleculaire Pietro Annigoni(CERBA) OuagadougouBurkina Faso Ecole Superieure des Techniques Biologiques et Alimentaires(RSTBA-UL) Universite de LomeTogo Unite de Formation et de Recherche en Sciences de la Vie et de la Terre(UFR/SVT) Universite de OuagadougouBurkina Faso Centre medical saint Camille de Ouagadougou Burkina Faso

Objective:To assess the prevalence of parasitic infections among patients attending Saint Camille Medical Centre and to estimate co-parasitic infections ***:From January to December 2009,stool samples were collected from 11 728 persons,aged from five months to 72 years and suffering from *** macroscopic description,the stools were examined by light microscopy to search for the presence of ***:From the 11 728 analyzed stools,6 154(52.47%) were infected with at least one *** frequently encountered were:Giardia intestinalis(43.47%),Entamoeba histolytica/Entamoeba dispar(30.74%) and Trichomonas irUestinalis(21.72%),while Hymenolepis nana(2.25%) was the most common ***-infections occurred in 22.34%*** the multi-infected samples,dual and triple infections accounted for 71.18%and 20.00%,*** irUestinalis for protozoan and Hymenolepis nana for helminths were the most implicated ***: This study confirms that intestinal parasites are still a public health problem in Burkina *** reduce the incidence of parasitic infections,it is necessary to promote the education of people so that they practice the rules of individual and collective hygiene.

关键词： Gastroenteritis Giardia intestinalis Hymenolepis nana Helminths Burkina Faso

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作者： (法)让－雅克·卢梭(jean-jacques Rousseau)

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ESR-铀系联合分析与等时线法结合在考古遗址化石测年中的应用探索

作者： (法)让-雅克·卢梭(jean-jacques Rousseau)

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核技术 2012年第12期35卷 923-928页

作者：韩非 jean-jacques Bahain 尹功明刘春茹中国地震局地质研究所地震动力学国家重点实验室北京100029 法国国家自然历史博物馆史前部

在ESR考古测年中,外部剂量率通常是年代结果的一个主要误差来源,其在历史过程中不断变化,所以很难通过现今的野外测量准确测定。等时线技术可解决化石样品测年中外部剂量率的不确定性问题。本研究尝试将ESR-铀系联合化石分析结合等时线... 详细信息

在ESR考古测年中,外部剂量率通常是年代结果的一个主要误差来源,其在历史过程中不断变化,所以很难通过现今的野外测量准确测定。等时线技术可解决化石样品测年中外部剂量率的不确定性问题。本研究尝试将ESR-铀系联合化石分析结合等时线技术应用于重庆龙骨坡遗址CⅢ’6层相邻探方中采集的5颗牙齿。ESR-铀系联合分析显示全部样品均经历了铀的近期吸收过程。平均外部剂量率通过等时线方法分步迭代计算,得到样品等时线年龄为1.77±0.09 Ma。本研究表明,将ESR-铀系联合分析与等时线技术相结合可同时解决牙齿化石样品ESR测年中内部剂量率和外部剂量率的问题。

关键词： ESR-铀系联合测年外部剂量率等时线法牙齿化石龙骨坡

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