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Soil Carbon Stocks under Amazonian forest:Distribution in the Soil Fractions and Vulnerability to Emission

Open Journal of forestry 2017年第2期7卷 121-142页

作者： jean dalmo de Oliveira Marques Flávio Jesus Luizao Wenceslau Geraldes Teixeira Euler Melo Nogueira Philip Martin Fearnside Max Sarrazin Federal Institute of Education Science and Technology of the Amazonas(IFAM)Campus Center of ManausManausBrazil National Institute for Research in Amazonia(INPA) ManausBrazil National Center for Soil Research Brazilian Agricultural Research Corporation(EMBRAPA)Rio de JaneiroBrazil IRD UMR BIOEMCORoute de MontaboCayenne CedexFrench Guiana

Transformations of natural ecosystems in tropical regions, which are usually covered by high-biomass forests, contribute to increased atmospheric CO2. Much of the carbon in forest ecosystems is stored in the soil. This study estimates soil carbon stock in a dense forest in central Amazonia from sets of soil samples collected in three topographic positions (plateau, slope and valley bottom). Soil organic matter (SOM) was fractionated by density and particle size, thus obtaining the free light fraction (FLF), intra-aggregated light fraction (IALF), sand fraction (F-sand), clay fraction (F-clay) and silt fraction (F-silt). Soil organic carbon (SOC) stocks on the plateaus (Oxisol), slopes (Ultisol) and valley bottoms (Spodosol) were 98.4 ± 7.8 Mg·ha-1, 72.6 ± 5.4 Mg·ha-1 and 81.4 ± 8.9 Mg·ha-1, respectively. Distribution of carbon in soil fractions was: 112.6 ± 15 Mg·ha-1 (FLF), 2.5 ± 0 Mg·ha-1 (ILAF), 40.5 ± 1.5 Mg·ha-1 (F-silt), 68.5 ± 4.2 Mg·ha-1 (F-clay) and 28.3 ± 1.4 Mg·ha-1 (F-sand), totaling 252.4 ± 22.1 Mg·ha-1 of carbon. Carbon is largely in labile form and near the soil surface, making it liable to release from deforestation or from climate change. Spodosols are more susceptible to soil carbon losses, demonstrating the need to preserve forested areas close to Amazonian rivers and streams.

关键词： Fractionation of Carbon Carbon Stocks Soil Physics Global Warming Amazon Rainforest Brazil

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烟粉虱MED隐种气味结合蛋白基因BtabOBP2和BtabOBP4的cDNA克隆及原核表达

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环境昆虫学报 2017年第4期39卷 752-761页

作者：谢红艳万鲁长黄春燕刘国霞 jean-Francois Picimbon 宫志远山东省农业科学院农业资源与环境研究所农业部废弃物基质化利用重点实验室山东省农业面源污染防控重点实验室济南250100 山东省农业科学院生物技术研究中心济南250100

采用RT-PCR和RACE技术成功克隆烟粉虱Bemisia tabaci(Gennadius)气味结合蛋白(odorant binding protein,OBP)基因BtabOBP2和BtabOBP4的cDNA全长。BtabOBP2(Gen Bank登录号:AIS71883)和BtabOBP4(Gen Bank登录号:AIS71884)的cDNA序列全长分别为1107 bp和874 bp,完整开放阅读框(ORF)分别为744 bp和429 bp,分别编码247和142氨基酸,BtabOBP4有6个保守的半胱氨酸,属于典型OBP,而BtabOBP2除了具有典型OBP的6个半胱氨酸,增加了3个保守的半胱氨酸,属于Plus-C OBP。将得到的BtabOBP2和BtabOBP4重组到原核表达载体pET30a(+),转化入BL21(DE3)大肠杆菌感受态细胞,用IPTG诱导融合蛋白表达。采用亲和层析和凝胶过滤层析纯化融合蛋白,并进行Western blot分析。结果显示,BtabOBP2和BtabOBP4融合蛋白在大肠杆菌中均有可溶性表达,Western blot结果证实所表达的融合蛋白确实为目的蛋白。BtabOBP2融合蛋白在SDS-PAGE中的表观分子量比预测的分子量大了6.53 k da,用重组肠激酶切掉6×His标签后,目的蛋白的表观分子量与预测分子量相近,偏差降低,说明6×His标签是造成融合蛋白表观分子量偏差的原因。本研究明确了烟粉虱气味结合蛋白基因BtabOBP2和BtabOBP4的核苷酸、氨基酸序列特征,并成功进行了原核表达和纯化,为进一步研究这两个OBP基因的分子结构和功能奠定了基础。

关键词：烟粉虱气味结合蛋白基因克隆原核表达纯化

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ENABLING CROP DIVERSIFICATION TO SUPPORT TRANSITIONS TOWARD MORE SUSTAINABLE EUROPEAN AGRIfoOD SYSTEMS

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Frontiers of Agricultural Science and Engineering 2021年第3期8卷 474-480页

作者： Antoine MESSEAN Loïc VIGUIER Lise PARESYS jean-Noel AUBERTOT Stefano CANALI Pietro IANNETTA Eric JUSTES Alison KARLEY Beatrix KEILLOR Laura KEMPER Frédéric MUEL Barbara PANCINO Didier STILMANT Christine WATSON Helga WILLER Raul ZORNOZA French National Institute for Agriculture Food and Environment(INRAE)Eco-InnovF-78850 Thiverval-GrignonFrance French National Institute for Agriculture Food and Environment(INRAE)UMR AGIRToulouseFrance Council for Agricultural Research and Economics-Research Centre for Agriculture and Environment(CREA-AA) 00184 RomeItaly The James Hutton Institute InvergowrieDundeeDD25DAUK French Agricultural Research Centre for International Development(CIRAD) Persyst DepartmentF-34398 MontpellierFrance Research Institute of Organic Agriculture(FiBL) 5070 FrickSwitzerland Terres Inovia F-78850 Thiverval-GrignonFrance University of Tuscia Department of EconomicsEngineeringSociety and Business Organization01100 ViterboItaly Wallon Agricultural Research Centre(CRA-W) Sustainabilitysystems and prospectives DepartmentB-6800 LibramontBelgium Scotland’s Rural College(SRUC) Craibstone EstateAberdeen AB219YAUK Technical University of Cartagena Department of Agricultural EngineeringCartagenaSpain

European cropping systems are often characterized by short rotations or even monocropping,leading to environmental issues such as soil degradation,water eutrophication,and air pollution including greenhouse gas emissions,that contribute to climate change and biodiversity *** use of diversification practices(i.e.,intercropping,multiple cropping including cover cropping and rotation extension),may help enhance agrobiodiversity and deliver ecosystem services while developing new value *** its benefits,crop diversification is hindered by various technical,organizational,and institutional barriers along value chains(input industries,farms,trading and processing industries,retailers,and consumers)and within sociotechnical systems(policy,research,education,regulation and advisory).Six EU-funded research projects have joined forces to boost crop diversification by creating the European Crop Diversification Cluster(CDC).This Cluster aggregates research,innovation,commercial and citizen-focused partnerships to identify and remove barriers across the agrifood system and thus enables the uptake of diversification measures by all European value-chain *** CDC will produce a typology of barriers,develop tools to accompany actors in their transition,harmonize the use of multicriteria assessment indicators,prepare policy recommendations and pave the way for a long-term network on crop diversification.

关键词： crop rotation lock-in intercropping multiple cropping networking

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Situation of Artificial Depigmentation among Women in 2016 to Bobo-Dioulasso, Burkina Faso

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Journal of Cosmetics, Dermatological Sciences and Applications 2017年第2期7卷 189-198页

作者： jean-Baptiste Andonaba Nina Nessiné Korsaga-Somé Boukary Diallo Etienne Yabré Issouf Konaté Amina Nomtondo Ouédraogo Pascal Niamba Adama Traoré INSSA Université Nazi Boni de Bobo-Dioulasso Bobo-Dioulasso Burkina Faso UFR/SDS Université Ki-Zerbo de Ouagadougou Ouagadougou Burkina Faso

INTRODUCTION: The artificial depigmentation (da) is a practice that aims to reduce the natural pigmentation of the skin by the use of depigmenting products (DP). In Burkina Faso, few studies have been made on the issue and the last date of 2003. The objective of the study is to realize an overview of the da phenomenon in women population in Bobo-Dioulasso City. METHODS: This is a descriptive cross-sectional study held from April 16th to April 30th 2016 including 437 women aged from 13 to 55 years old. A multi-stage random sampling was realized A chi-square test was used to compare groups with significant threshold of 5%. RESULTS: The prevalence of the use of DP (67.28% with IC95 = [63.52 - 71.03]). The mean age of users was 27.5 years old;the typical profile was women from 30 to 35 years old (85.7%), with elementary study level, (73.47%), housewife’s (75.19%) and monogamous (71.98%). the products used was those made of hydroquinone (81.6%), EDTA (8.33%), kojic acid (4.86%), mixtures (11.12%) or unknown products (14.58%). The origin of the product was doubtful for almost all the cases (98.96%). The monthly mean cost of this practice for a single user is 1710 CFA. Complications were reported in 62.5% of users, and the most found was dyschromia (85.87%), acne (17.39%) and burns (10.32%). DISCUSSION: The da is in great progress in Bobo-Dioulasso (2 out of 3 women) compared to half, thirteen years ago. The hydroquinone was markedly the most frequent DP while there was an apparent lack of corticosteroids and mercuries replaced by the new depigmenting agent such as EDTA and kojic acid. This result contrasted with the classic combination hydroquinone-dermocorticoid-mercuries reported by previous studies. CONCLUSION: The low-cost of DP could explain the magnitude of the artificial depigmentation phenomenon. Other studies should be conducted in order to establish with precision the composition of these products and their causality in the occurrence of common complications. Re

关键词： Artificial Depigmentation Products Women Bobo-Dioulasso

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数学教学中的“同伴影响法”探究

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楚雄师范学院学报 2009年第6期24卷 93-95页

作者：董大校临沧师范高等专科学校云南临沧677000

"同伴影响法"在数学教学中是一种行之有效的教学方法,这对于改变数学教学的刻板、单一教学思维是重要的。本文对数学教学如何实施"同伴影响法"进行了阐释,分析了其能带来的有利影响及开展过程对教师和学生的相关要求。

关键词：皮亚杰数学教学 “同伴影响法”

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国际医学史学会的建立与历史演进

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医学与哲学（A） 2017年第6期38卷 86-89页

作者：苏静静张大庆北京大学医学人文研究院北京100191

为推进有关医学科学、诊疗技术和公共卫生的历史研究,加强世界各国医学史研究人员和学会之间的交流,促进医学文化的交流与传播,国际医学史学会(International Society for the History of Medicine,ISHM)于1921年在巴黎宣布成立。利用I... 详细信息

为推进有关医学科学、诊疗技术和公共卫生的历史研究,加强世界各国医学史研究人员和学会之间的交流,促进医学文化的交流与传播,国际医学史学会(International Society for the History of Medicine,ISHM)于1921年在巴黎宣布成立。利用ISHM的相关档案和口述访谈等辅助资料,还原其建立和演进的过程,并在全球政治和医学发展格局中,批判性地审视ISHM从以法国和比利时为主导,逐步走向欧洲大陆、欧洲和北美,最后走向全球,从以医生/医学史家为主体到融合科学技术史、生物医学史、医疗史和历史学家等多元学科的历史进程。

关键词：国际医学史学会欧洲中心主义法国国际医学史大会让-约瑟夫· 特里科-罗耶

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Support Vector Machine and Artificial Neural Networks for Hydrological Cycles Classifications of a Water Reservoir in the Amazon

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通讯和计算机（中英文版） 2014年第2期11卷 111-117页

作者： jean Carlos Arouche Freire Tarcisio da Costa Lobato Jefferson Magalhaes de Morais Terezinha Ferreira de Oliveira Rachel Anne Hauser-davis Augusto Cesar fonseca Saraiva Faculty of Computing Federal University of Pard City Belem 66. 075-110 Brazil Faculty of Mathematics and Statistics Federal University of Para Belem 66. 075-110 Brazil Departament of Chemmistry Pontifical Catholic University of Rio de Janeiro Rio de Janeiro 22451-900 Brazil Technology Center Eletrobras-Eletronorte Belem 66115-000 Brazil

This paper presents a methodology based on computational intelligence techniques for classification of hydrological cycles that can infer the change in the physico-chemical parameters and metals from the water of a reservoir in the Amazon. The methodology initially consists in perform a pre-processing the data to select the most relevant variables of the samples. After that, we compared two different machine learning classifiers, namely SVM (support vector machine) and ANN (artificial neural network). The automatic model selection is made to choose the parameters of the classifiers. The results indicate that the support vector machine classifier using radial basis function or polynomial kernel exhibited superior results to ANN in terms of overall accuracy and robustness. The SVM classifier accuracy (89.1%) can be considered satisfactory, since there is a great variability of physico-chemical parameters and metals in the hydrological cycles and in the different ecosystems where are the sampling station.

关键词：支持向量机分类器人工神经网络水文循环分类方法亚马逊水库物理化学参数计算智能技术

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三尖瓣与下腔静脉间峡部血管造影评价281例随机使用8mm大头导管或盐水灌注导管患者房扑消融的疗效

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世界核心医学期刊文摘（心脏病学分册） 2007年第1期3卷 48-49页

作者： da Costa A. Romeyer-Bouchard C. dauphinot V. 巩雪 Department of Cardiology Faculty of Medicine J. Lisfranc Jean Monnet University 42 055 Saint-Etienne Cedex 2 France

目的:三尖瓣与下腔静脉间峡部(CTI)依赖性房扑的射频消融(RFA)可应用多种消融导管。最近的研究比较了冷盐水灌注RFA(ecRFA)导管和大头(8mm)导管,结果发现ecRFA导管用于CTI消融的效果可能更好。本前瞻性研究旨在依据CTI形态学分层对两种... 详细信息

目的:三尖瓣与下腔静脉间峡部(CTI)依赖性房扑的射频消融(RFA)可应用多种消融导管。最近的研究比较了冷盐水灌注RFA(ecRFA)导管和大头(8mm)导管,结果发现ecRFA导管用于CTI消融的效果可能更好。本前瞻性研究旨在依据CTI形态学分层对两种导管进行比较,以部分解释此前随机化研究结果的不一致性,并在临床、超声心电图和血管造影资料中确定复杂CTI消融的预测因素。

关键词：房扑消融随机使用血管造影冷盐水峡部射频消融下腔静脉部分解释不一致性超声心电图

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自由、责任和人道主义——浅谈对萨特存在主义“介入”思想的理解

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黑龙江教育学院学报 2008年第10期27卷 22-24页

作者：朱大锋黄淮学院社会科学系河南驻马店463000

萨特主张存在先于本质,强调人选择的自由和责任,教导人们不能拘于旧的制度框架与命定论;萨特从其存在主义"介入"思想出发,试图剖析资本主义和对马克思主义进行人道主义"补充"。

关键词：萨特存在主义 “介入”思想马克思主义

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Consultation, Diagnosis and Treatment Delays for Breast Cancer among Patients followed up at the YaoundéGeneral Hospital, Cameroon

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Open Journal of Obstetrics and Gynecology 2020年第11期10卷 1580-1589页

作者： jean Dupont Kemfang Ngowa Angèle Kabeyene Richard Ngarvounsia Etienne Atenguena Yvan Sinclair Ngaha Tchawe Anny Ngassam Christiane Nsahlai Junie Metogo Jovanny fouogue Tsuala Pierre Marie Tebeu Department of Obstetrics/Gynecology Faculty of Medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon Yaoundé General Hospital Obstetrics/Gynecology Unit Yaoundé Cameroon Department of Pathology Faculty of Medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon Yaoundé General Hospital Medical Oncology Unit Yaoundé Cameroon Department of Obstetrics/Gynecology Faculty of Medicine and Pharmaceutical Sciences University of Dschang Dschang Cameroon

Introduction: Breast cancer is often diagnosed at an advanced stage in Cameroon. The objective was to analyse consultation, diagnosis and treatment delays for breast cancer among patients followed up at the Yaoundé General Hospital (YGH) in Cameroon. Materials and Methods: This was a cross-sectional study carried out from the files of patients followed up for breast cancer at the YGH from January 1, 2014 to April 30, 2018. A total of 183 patients were included. We measured time elapsed between the awareness of first signs of disease and the initial consultation (consultation delays), time lapse between the initial consultation and pathological diagnosis of breast cancer (diagnosis delays), interval between pathological diagnosis and treatment onset (treatment delays), time elapsed between the initial consultation and management (health system delays) and time elapsed from awareness of first signs of disease to treatment onset (overall delays). Resultsfont-family:Verdana;">font-family:Verdana;">fo

关键词： Breast Cancer Delay in Consultation Delay in Diagnosis Delay in Treatment

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