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Journal of Environmental Protection 2020年第7期11卷 531-539页

作者： Nazo Edith Kpata-Konan kouamé Martin kouamé yao francis kouamé Sylvestre Ahou yaovi Koffi Felix Konan Theophile Gnagne Department of Agroforestry University Jean Lorougnon Guédé Daloa C&ocirc te d’Ivoire Department of Environment University Jean Lorougnon Guédé Daloa C&ocirc te d’Ivoire IMT-Atlantique GEPEA UMR CNRS 6144 Nantes France Laboratory of Biology and Molecular Typing in Microbiology LBTMM UAC Abomey-Calavi Benin Department of Science and Environmental Management Université Nangui Abrogoua Abidjan C&ocirc te d’Ivoire

This study focused on the transfer of experimental results of anaerobic digestion of liquid waste from an attiéké (steamed cassava semolina) factory to a 6 m3 pilot digester. The experimental digester and the pilot were powered as follows: Lw + U + C (liquid waste + urine + cow dung). To the results, the experimental digester mesophilic with a progressive elimination of COD. Also, the nitrogen concentrations in the experimental reactor had little removal with alkaline pH. As for the biogas product in this digester, a volume of 3.6 m3 was obtained with a positive flammability test. The transition from the laboratory scale to the semi-industrial scale retains the results of purification and fuel biogas production of the experimental digester.

关键词： Anaerobic Digestion Cassava Liquid Waste Biogas

Optimization of Biofuel Formulation by Mixture Design

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Advances in Chemical Engineering and Science 2024年第1期14卷 48-56页

作者： Konan Edmond Kouassi Abollé Abollé kouamé Olivier-Marc Kouakou David Boa N’guessan Raymond Kré Kouassi Benjamin yao Laboratory of Thermodynamics and Physical Chemistry of the Environment (LTPCM) UFR-SFA University of Nangui ABROGOUA Abidjan C&#244te d’Ivoire Laboratory of Fundamental and Applied Physics (LPFA) UFR-SFA University of Nangui ABROGOUA Abidjan C&#244te d’Ivoire Laboratory of Industrial Processes for the Synthesis of the Environment and New Energies (LAPISEN) of the Félix Houphouë t Boigny National Polytechnic Institute Yamoussoukro C&#244te d’Ivoire

With the full growth of energy needs in the world, several studies are now focused on finding renewable sources. The aim of this work is to optimise biofuel formulation from a mixture design by studying physical properties, such as specific gravity and kinematic viscosity of various formulated mixtures. Optimization from the mixture plan revealed that in the chosen experimental domain, the optimal conditions are: 40% for used frying oil (UFO), 50% for bioethanol and 10% for diesel. These experimental conditions lead to a biofuel with a density of 0.84 and a kinematic viscosity of 2.97 cSt. These parameters are compliant with the diesel quality certificate in tropical areas. These density and viscosity values were determined according to respective desirability values of 0.68 and 0.75.

关键词： Biofuel Optimization Mixture Design

Osteoarticular Lesions of the Shoulder Girdle by Hippopotamus Bite: Highly Septic Lesion

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Open Journal of Orthopedics 2024年第2期14卷 114-121页

作者： Jr Pierre Germain Ochou Achié Jean Régis Akobe yao Aboh Ganyn Robert Arnaud Assere kouamé Jean-Eric Kouassi Adelaïde Aya Natacha Kouassi Ibrahim Soumahoro Zolopégué Marcel Soro Sédi Loues De Randolphe Akpro Gbalé Yannick Blé kouamé Innocent M’bra Loukou Blaise yao Bada Juste Léopold NiaoréSery Koffi Léopold Krah Michel Kodo Department of Orthopaedic and Traumatological Surgery Bouaké University Hospital Bouaké Ivory Coast Raoul Follereau Institute Manikro Centre Bouaké Ivory Coast

Hippopotamus bites are rare in medical consultations, despite several studies exposing their aggressive character. A case of a hippopotamus bite on the shoulder of a fisherman has been reported. In addition to the osteoarticular aspect representing a therapeutic problem, the infectious aspect was marked by sepsis, with a death in less than 48 hours. Based on this observation, a protocol for the initial management of large animal bites was submitted.

关键词： Bite Hippopotamus Septic Shock

Dissemination of Resistance Integrons and Genes Coding for Blse and Cabapenemases in the Urban Drainage Network in Cote d’Ivoire

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Advances in Microbiology 2024年第5期14卷 268-286页

作者： Coulibaly Kalpy Julien Diaby Aboubakar Sidik Vakou N’dri Sabine M’bengue Gbonon Valérie Carole Claon Jean Stephane yao kouamé Eric Gnali Gbohounou Fabrice Yéo Yéfougnini Bagré Issa Djaman Allico Joseph Dosso Mireille Pasteur Institute of Ivory Coast Abidjan C&#244te d&#8217Ivoire Fé lix Houphou&#235t-Boigny University Abidjan C&#244te d&#8217Ivoire

Antibiotic resistance has become a major threat to human health worldwide. Environment, particularly the water environment, has long been overlooked as a player in the antibiotic resistance cycle, although its role remains unclear. These can provide an ideal setting for the acquisition and dissemination of antibiotic resistance, as they are frequently affected by anthropogenic activities. The objective of this study was to establish a diffusion map of resistance integrons used as genetic markers of resistance associated with antibiotic resistance conferring genes (ARGs). Total DNA extracts from non-cultivable bacterial communities were used for the analyses. These communities were obtained from wastewater samples from 14 sites upstream and downstream of drainage channels or effluents in the cities of Abidjan, Bouaké, and Yamoussoukro. The results obtained correspond to the number of positives among the treated samples (n = 39). Among the genetic markers of dissemination, class 1 integrons were the most evident in 94.8% of samples in Abidjan (93.3%), Bouaké (100%) and Yamoussoukro (91.6%). Class 2 integrons and class 3 integrons were found respectively in 41% and 51% of all samples. Genes coding for β-lactamases and blaTEM was identified in almost all samples at a rate of 97.4%. A co-presence of the three genes blaTEM, blaSHV and blaCTX-M is also remarkable in the sites of the city of Yamoussoukro. Among the genes coding for carbapenemases, only blaKPC 17.94%, blaNDM 30.76% and blaOXA48 38.46% were detected in the samples.

关键词： Antibiotic Resistance Wastewater Resistance Integrons (RIs) Resistance Genes

LKB1 depletion-mediated epithelial-mesenchymal transition induces fibroblast activation in lung fibrosis

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Genes & Diseases 2024年第3期11卷 417-426页

作者： Zijian Xu Elizabeth R.Davies Liudi yao Yilu Zhou Juanjuan Li Aiman Alzetani Ben G.Marshall David Hancock Tim Wallis Julian Downward Rob M.Ewing Donna E.Davies Mark G.Jones Yihua Wang Biological Sciences Faculty of Environmental and Life SciencesUniversity of SouthamptonSouthampton SO171BJUK clinical and Experimental Sciences Faculty of MedicineUniversity of SouthamptonSouthampton SO166YDUK Institute for Life Sciences University of SouthamptonSouthampton SO171BJUK NIHR Southampton Biomedical Research Centre University Hospital SouthamptonSouthampton SO166YDUK University Hospital Southampton Southampton SO166YDUK Oncogene Biology The Francis Crick InstituteLondon NW11ATUK

The factors that determine fibrosis progression or normal tissue repair are largely *** previously demonstrated that autophagy inhibition-mediated epithelial-mesenchymal transition(EMT)in human alveolar epithelial type Il(ATIl)cells augments local myofibroblast differentiation in pulmonary fibrosis by paracrine ***,we report that liver kinase B1(LKB1)inactivation in ATIl cells inhibits autophagy and induces EMT as a *** IPF lungs,this is caused by the down-regulation of CAB39L,a key subunit within the LKB1 complex.3D co-cultures of ATIl cells and MRC5 lung fibroblasts coupled with RNA sequencing(RNA-seq)confirmed that paracrine signaling between LKB1-depleted ATIl cells and fibroblasts augmented myofibroblast ***,these data suggest that reduced autophagy caused by LKB1 inhibition can induce EMT in ATIl cells and contribute to fibrosis via aberrant epithelial-fibroblast crosstalk.

关键词： CAB39L Crosstalk EMT LKB1 Pulmonary fibrosis

A conserved odorant receptor identified from antennal transcriptome of Megoura crassicauda that specifically responds to cis-jasmone

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Journal of Integrative Agriculture 2022年第7期21卷 2042-2054页

作者： WANG Bo HUANG Tian-yu yao Yuan Frederic francis YAN Chun-cai WANG Gui-rong WANG Bing Tianjin Key Laboratory of Conservation and Utilization of Animal Diversity Tianjin Normal UniversityTianjin 300387P.R.China State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193P.R.China Guangdong Laboratory for Lingnan Modern Agriculture(Shenzhen Branch) Genome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120P.R.China Functional and Evolutionary Entomology Gembloux Agro-Bio TechUniversity of LiegeGembloux 5030Belgium

Herbivore-induced plant volatiles(HIPVs)play a key role in the interactions between plants and herbivorous insects,as HIPVs can promote or deter herbivorous insects’*** aphids are common and serious phloem-feeding pests in farmland ecosystems,little is known about how aphids use their sensitive olfactory system to detect *** this study,the antennal transcriptomes of the aphid species Megoura crassicauda were sequenced,and expression level analyses of *** odorant receptors(ORs)were carried *** investigate the chemoreception mechanisms that *** uses to detect HIPVs,we performed in vitro functional studies of the ORs using 11 HIPVs reported to be released by aphid-infested *** total,54 candidate chemosensory genes were identified,among which 20 genes were ***20 and McraOR43 were selected for further functional characterization because their homologs in aphids were quite conserved and their expression levels in antennae of *** were relatively *** results showed that McraOR20 specifically detected cis-jasmone,as did its ortholog ApisOR20 from the pea aphid Acyrthosiphon pisum,while McraOR43 did not respond to any of the HIPV chemicals that were *** study characterized the ability of the homologous OR20 receptors in the two aphid species to detect HIPV cis-jasmone,and provides a candidate olfactory target for mediating aphid behaviors.

关键词： Megoura crassicauda transcriptome chemosensory genes odorant receptors cis-jasmone

Mapping of the Sedimentary Facies of the Bottom of the Ouladine Lagoon in Grand-Bassam (Ivory Coast_West Africa)

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Journal of Geoscience and Environment Protection 2022年第10期10卷 163-175页

作者： Bi Kassia francis Koffi Samassy Rokyatou Epouse Yeo Kouassi kouamé Alfred Laboratory of Environmental Sciences and Technologies Department of Earth Sciences Jean Lorougnon Guédé University Daloa Ivory Coast

The Ouladine lagoon has an irregular bottom lined with different substrates. The lithological characteristics make it possible to observe sediments ranging from silts to sands and mixed sediments of variable color. These different fractions have varying proportions. The coarse fraction (>63 μm) has percentages ranging from 0 to 77% and the fine fraction ( μm) from 22.46 to 100% in the different sediments collected. The minority fraction of fine sands occupies the northern banks where the greatest depths of the section parallel to the coastal strip are observed. On the other hand, the sandy fractions occupy the southern shore up to the vicinity of the Azuretti mangrove island. This sandy fraction is also present on almost the entire section from the Comoé-Ebrié lagoon confluence to the closed mouth. The grain size characters of the sediments, such as the diagram of the classification coefficient So and the mean Mz, show well-classified sands. These sediments are deposited in a slightly agitated environment coming mainly from dunes and rivers. The sands of the estuarine complex were emplaced by saltation for most samples and by rotation.

关键词： Substrate Lithology Silts Sediments Barrier Beach Mouth Granulometric Estuarine Saltation

基于冲蚀-动网格耦合的混流式水轮机泥沙磨损演化特性研究

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水动力学研究与进展（A辑） 2024年第2期39卷 234-243页

作者：黄剑峰姚激张蕾蕾北部湾大学建筑工程学院钦州535011 广西海洋工程装备与技术重点实验室钦州535011 昆明理工大学工程力学系昆明650500

含沙水流条件下,水轮机内泥沙颗粒与湍流两相介质相互作用时,泥沙冲蚀动态过程会磨损水轮机过流部件壁面,进而影响水轮机水力性能及运行安全。采用离散相模型(Discrete Phase Model,DPM)中的冲蚀-动网格耦合模型,该文数值模拟了混流式... 详细信息

含沙水流条件下,水轮机内泥沙颗粒与湍流两相介质相互作用时,泥沙冲蚀动态过程会磨损水轮机过流部件壁面,进而影响水轮机水力性能及运行安全。采用离散相模型(Discrete Phase Model,DPM)中的冲蚀-动网格耦合模型,该文数值模拟了混流式水轮机全流道泥沙颗粒冲蚀磨损演化过程,对比了单相及固液两相流工况下的湍流场特性,分析了不同泥沙质量流率与泥沙颗粒形状对于导水机构与转轮的磨损部位、冲蚀变形量以及磨损率随冲蚀时间变化的影响。结果表明:泥沙注入后,尾水管内整体流态有所改善,湍流紊乱程度被明显削弱,相比于清水工况,注入泥沙可减小84%~90%转轮湍动能;座环鼻端及临近固定导叶前缘的上下两端出现的蚀痕以变形磨损为主,活动导叶迎水面头部发生切削磨损,转轮叶片进水边靠近下环处则呈现出明显的冲蚀磨损;活动导叶冲蚀变形量大于固定导叶,转轮叶片工作面磨损率显著高于背面;泥沙质量流率增加,导叶和转轮叶片的冲蚀变形量与磨损率成倍增大,磨损率表现出脉动特性;活动导叶和转轮叶片工作面冲蚀24h后,非球形颗粒冲蚀变形量均大于球形颗粒。该研究可为多泥沙河流中水力机组的维护检修和安全稳定运行提供理论依据和参考。

关键词：混流式水轮机离散相冲蚀-动网格耦合泥沙磨损数值模拟

Diagnosis of Wastewater Contamination by Metalic Trace Elements (MTE) in the Areas of Yopougon (South Abidjan) and Marcory, Koumassi (North Abidjan) from March to July 2021

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Journal of Materials Science and Chemical Engineering 2023年第10期11卷 19-28页

作者： Lydie Nina Amon Aboubakar Sidik Diaby Alfred Niamien kouamé kouamé Eric yao Ali Sanou Léon Koffi Konan Kalpy Julien Coulibaly Mireille Dosso Institut Pasteur of Cô te d’Ivoire Environment and Health Department Abidjan C&#244te d’Ivoire Ivorian Anti-Pollution Center Abidjan C&#244te d’Ivoire Laboratory of Composition and Reaction of Matter Félix Houphou&#235t-Boigny University Abidjan C&#244te d’Ivoire Laboratory of Hydrobiology Felix Houphouet Boigny University Abidjan C&#244te d’Ivoire Institut National Polytechnique of Félix Houphouë t-Boigny (INP-HB) Laboratory of Industrial Synthesis Processes Environment and New Energies (LAPISEN) Yamoussoukro C&#244te d’Ivoire

Contamination of the aquatic environment by Metallic Trace Elements (MTE) is a major problem encountered in our environment today. In Côte d’Ivoire, in some municipals, residential and industrial areas in the city of Abidjan, waste water of worrying quantity is discharged into the rainwater drainage channels which flow directly into the Ebrié lagoon. In order to identify the origin of the pollution by metallic trace elements (MTE) transported by this water, samples of wastewater were collected and then analyzed. ICP-MS was used for MTE (Cu, Fe, Zn, Al, Pb, Cd) analyses and results were statistically processed in multivariate form using PCA and Excel. The results showed high concentrations of metals, with the exception of Cd. The typological structure represents 85.74% of the total information for the MTE. Plan F1 represents 63.90% of the variance and describes water pollution by copper (0.95), zinc (0.90), iron (0.84) and aluminum (0.84). Plan F2 represents 21.84% and describes the enrichment of water with lead (0.84). It seems more than necessary to make manufacturers aware of the need to install wastewater treatment systems in order to avoid their discharge into the environment.

关键词： MTE Wastewater Typology

Characterization of Digestates from Anaerobic Co-Digestion of Manioc Effluent, Human Urine and Cow Dung

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Journal of Water Resource and Protection 2019年第6期11卷 777-788页

作者： Kpata-Konan Nazo Edith kouamé yao francis kouamé kouamé Martin Konan Koffi Felix Department of Agroforestry/University Jean Lorougnon Gué dé Daloa C&#244 te d’Ivoire Department of Environment/University Jean Lorougnon Gué dé Daloa C&#244 te d’Ivoire

This study focused on the characterization of digestates resulting from anaerobic digestion of manioc effluents from attiéké factories. Two types of digestate were characterized, one consisting of manioc effluent + urine and another composed of manioc effluent + urine + cow dung. As a result, these residues of bio-digestion rich in nutrients (NPK) can be used as agricultural fertilizer. Moreover, the determination of some microorganisms and heavy metals digestates allowed to better appreciate its fertilizing quality. These parameters remained in accordance with the quality standards of a digestate prescribed. These results show that digestates from anaerobic co-digestion of manioc effluents, urine and cow dung can be used without fear as an agricultural biofertilizer.

关键词： Manioc Effluent Human Urine Cow Dung Anaerobic Co-Digestion Digestate