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Journal of Geoscience and Environment Protection 2022年第6期10卷 170-190页

作者： Luciane Marlyse Moungang Blandine Pulchérie Tamatcho Kweyang Lisyane Merveille Betyi Roland Ndifor Ache Yves Poutoum Yogne Mouhama Sani Adams Ibn Rabiou Golda Reine Zame Meva’a Aurélie Dzenga Njeunkam Claire Stephane Metsopkeng Serge hubert Zebaze Togouet Laboratory of Hydrobiology and Environment Department of Animal Biology and Physiology Faculty of Sciences University of Yaoundé I Yaoundé Cameroon Department of Microbiology Faculty of Sciences University of Yaoundé I Yaoundé Cameroon Department of Organic Chemistry Faculty of Sciences University of Yaoundé I Yaoundé Cameroon Higher Technical Teachers Training College University of Bamenda Bamenda Cameroon

The untreated effluents generated by hospital activities contribute to the dissemination of pathogenic germs and multi-resistant bacteria, thus presenting a great potential danger for health and the environment. The objective of this study was to evaluate the microbiological and physico-chemical quality of the effluents of the Yaoundé University Hospital Centre and their impact on the environment. It was a prospective and analytical study on three sites where hospital effluents from the intensive care unit (Station A), the upstream of the wastewater treatment plant (Station B), and the gynaecology, surgery and hospitalisation departments (Station C) were sampled. Samples were collected in sterile glass bottles for bacteriological analyses and polyethylene bottles for physico-chemical analyses. The bacteriological parameters measured showed that the density of the bacterial species sought was very high at Station B with a predominance of the species Escherichia coli (57.36%). At Station A, total coliforms were very abundant (50.12%) and at Station C, the genus Pseudomonas was predominant (14.69%). Bacteria of the genus Streptococcus were represented by three species, namely: Streptococcus agalactiae, Streptococcus faecalis, and Streptococcus pneumoniae. The Pseudomonas genus was also represented by 3 species, namely Pseudomonas aeruginosa, Pseudomonas maltophilia and Pseudomonas putida. The physico-chemical parameters showed that apart from temperature and conductivity, which were in compliance with the standards, the other had values higher than these standards. This study shows that untreated hospital effluent contains most of the bacteria involved in community, nosocomial infections and would be a potential source of risk to the surrounding population.

关键词： Characterisation University Hospital Centre Effluents Bacteriology of Effluents Physico-Chemistry of Wastewater

Frequency and Profile of Severe Periodontitis in Kinshasa Dental Hospitals, DR Congo

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Health 2018年第4期10卷 396-402页

作者： Em K. Kalala Fidèle B. Nyimi Béatrice K. Ngamala Jean-Paul I. Sekele Alain K. Nyengele Pierre M. Muyembi Jacques I. Bolenge hubert M. Ntumba Unit of Periodontology Department of Dental Medicine Faculty of Medicine University of Kinshasa Kinshasa Democratic Republic of Congo Service of Stomatology and Maxillo-Facial Surgery Department of Dental Medicine Faculty of Medicine University of Kinshasa Kinshasa Democratic Republic of Congo Béatrice Ngamala Kabongo: DDS Private Practice Kinshasa Democratic Republic of Congo Service of Prosthodontics and Orthodontics Department of Dental Medicine Faculty of Medicine University of Kinshasa Kinshasa Democratic Republic of Congo

Purpose: Severe periodontitis (SP) is the sixth most prevalent disease world-wide. Prevalence and incidence are poorly reported in DR Congo. The aim of this study was to assess the prevalence of SP and to compare its profile with that of mild to moderate periodontitis (MMP). Materials and Methods: Four hundred and four patients from four hospitals of Kinshasa City Capital participated in this study. Probing pocket depth (PPD) at six sites per tooth, bleeding on probing (BoP) and plaque index (PIl) were the main clinical parameters assessed. Results: Out of 404 patients examined in this study, 92 (22.8%) had severe periodontitis and 276 (68.3%) had mild to moderate periodontitis. Among patients with SP, 48 (52%) were female, 44 (48%) were male and 63% of them had a PPD of 6 mm. SP was significantly different from MMP according to patients age, 47.3 ± 18.6 versus 32.87 ± 14.40 years old, p < 0.001;plaque index, 1.153 ± 0.39 versus 0.90 ± 0.39, p < 0.001;BoP, 26.65 versus 17.04, p < 0.001. Conclusion: The Frequency of SP is relatively high in patients attending dental services in Kinshasa City and SP is significantly different from MMP.

关键词： Bleeding on Probing Mild/Moderate Periodontitis Prevalence Probing Pocket Depth Severe Periodontitis

Alignment of Vertically Grown Carbon Nanostructures Studied by X-Ray Absorption Spectroscopy

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Materials Sciences and Applications 2014年第13期5卷 966-983页

作者： Jeannot Mane Mane Francois Le Normand Rolant Eba Medjo Costel Sorin Cojocaru Ovidiu Ersen Antoine Senger Carine Laffon Bridinette Thiodjio Sendja César Mbane Biouele Germain hubert Ben-Bolie Pierre Owono Ateba Philippe Parent IPCMS UMR 7504 CNRSStrasbourgFrance Ecole Nationale Supérieure Polytechnique(National Advanced School of Engineering) Department of Mathematics and Physical SciencesThe University of YaoundéIYaoundeCameroon Physics Department Faculty of ScienceUniversity of YaoundéIYaoundeCameroon Physics Department Faculty of ScienceUniversity of DoualaDoualaCameroon LURE UMR CNRSCentre Universitaire Paris SudOrsayFrance

X-Ray Absorption Spectroscopy (XAS) on the carbon K edge of carbon nanostructures (nanotubes, nanofibers, nanowalls) is reported here. They are grown on plain SiO2 (8 nm thick)/Si(100) substrates by a Plasma and Hot Filaments-enhanced Catalytic Chemical Vapor Deposition (PE HF CCVD) process. The morphology and the nature of these carbon nanostructures are characterized by SEM, TEM and Raman spectroscopy. According to conditions of catalyst preparation and DC HF CCVD process, carbon nanotubes (CNTs), carbon nanofibers (CNFs), carbon nanowalls (CNWs), carbon nanoparticles (CNPs) with different orientation of the graphene plans or shells can be prepared. From the angular dependence of the incident light and geometrical morphology of the nanostructures, wide variations of the C K-edge intensity of the transitions to the empty π* and σ* states occur. A full lineshape analysis of the XAS spectra has been carried out using a home-made software, allowing estimating the relative proportion of π* and σ* transitions. A geometrical model of the angular dependence with the incidence angle of the light and the morphology of the carbon nanostructures is derived. With normalization to the HOPG (Highly Oriented Pyrolytic Graphite graphite) reference case, a degree of alignment can be extracted which is representative of the localized orientation of the graphitic carbon π bonds, accounting not only for the overall orientation, but also for local defects like impurities incorporation, structural defects ... This degree of alignment shows good agreement with SEM observations. Thus CNTs films display degrees of alignment around 50%, depending on the occurrence of defects in the course of the growth, whereas no special alignment can be detected with CNFs and CNPs, and a weak one (about 20%) is detected on CNWs.

关键词： X-Ray Absorption Spectroscopy Carbon Nanostructures(CNTs,CNFs,CNWs,CNPs) Plasma-and Hot Filaments-Enhanced Catalytic Chemical Vapor Deposition Geometrical Model Angular Dependence

Microalbuminuria and Associated Factors in Diabetics at the CNHU-HKM of Cotonou

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“一带一路”战略下我国高等教育国际输出的机遇与挑战

Journal of Diabetes Mellitus（糖尿病） 2023年第1期

作者： Annelie Kerekou Hode hubert dedja. Doucelyne d’Almeida

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清华大学教育研究 2018年第1期39卷 68-74页

作者：喻恺胡伯特·埃特尔瞿晓蔓江西科技学院高等教育研究所江西南昌330098 牛津大学教育学院英国上海交通大学高等教育研究院上海200240

高等教育国际输出是"一带一路"战略赋予我国高等教育的重要使命。本文从来华留学生教育和跨境办学两个角度分析了"一带一路"战略下我国高等教育国际输出面临的机遇和挑战。"一带一路"沿线国家的教育需求已经成为发展来华留学生教育的主... 详细信息

高等教育国际输出是"一带一路"战略赋予我国高等教育的重要使命。本文从来华留学生教育和跨境办学两个角度分析了"一带一路"战略下我国高等教育国际输出面临的机遇和挑战。"一带一路"沿线国家的教育需求已经成为发展来华留学生教育的主要推动力,为我国扩大来华留学生规模、优化来华留学生结构提供了基础。"一带一路"战略下企业"走出去"亟需一批本土化的高素质创新型人才,这为我国与沿线国家开展大范围、高水平、多层次的跨境办学提供了契机。同时,"一带一路"战略下我国高等教育国际输出也面临新的挑战,包括沿线国家语言和文化差异较大,来华留学生质量和层次有待提高,跨境教育质量保障体系还需健全等。针对这些机遇和挑战,本文进一步讨论了"一带一路"战略下推动我国高等教育国际输出的对策与建议。

关键词： “一带一路” 来华留学境外办学高等教育国际输出

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Peripheral Neuropathy and Associated Factors in Diabetics at the CNHU-HKM of Cotonou in 2021

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Journal of Diabetes Mellitus（糖尿病） 2023年第1期

作者： Annelie Kerekou Hode hubert dedja. Fidodé Martine Sondjo

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新型兰花皮肤美白提取物

中华疾病控制杂志 2010年第4期14卷 353-356页

作者： Frederic Bonte Jean-hubert Cauchard Jean-Christophe Archambault Michele Neveu Taketsugu Tadokoro Kentaro Ozawa Maki Nagamatsu LVMH-Recherche 45804 Saint-Jean de Braye France Department of Dermatology Osaka National Hospital National Hospital Organization Osaka Japan

对于亚洲人,面部色斑的出现常常是皮肤老化的早期信号之一.长期暴露于紫外线、局部炎症刺激或体内激素的突然变化,导致皮肤出现色素沉着,表现为色斑,并伴有皮肤光泽消失[1～3].

关键词：皮肤美白提取物,兰花

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Virus-host Interactions during Hepatitis C Virus Entry-Implications for Pathogenesis and Novel Treatment Approaches

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Virologica Sinica 2008年第2期23卷 124-131页

作者： Joachim Lupberger Mirjam B. Zeisel Anita Haberstroh Eva K. Schnober Sophie Krieger Eric Soulier Christine Thumann Cathy Royer Samira Fafi-Kremer Catherine Schuster Franoise Stoll-Keller hubert E. Blum Thomas F. Baumert Inserm U748 Hpitaux Universitaires de Strasbourg Université Louis Pasteur 3 Rue Koeberle Department of Medicine II University of Freiburg

Hepatitis C virus (HCV) is a member of the Flaviviridae family and causes acute and chronic hepatitis. Chronic HCV infection may result in severe liver damage including liver cirrhosis and hepatocellular carcinoma. The liver is the primary target organ of HCV, and the hepatocyte is its primary target cell. Attachment of the virus to the cell surface followed by viral entry is the first step in a cascade of interactions between the virus and the target cell that is required for successful entry into the cell and initiation of infection. This step is an important determinant of tissue tropism and pathogenesis; it thus represents a major target for antiviral host cell responses, such as antibody-mediated virus neutralization. Following the development of novel cell culture models for HCV infection our understanding of the HCV entry process and mechanisms of virus neutralization has been markedly advanced. In this review we summarize recent developments in the molecular biology of viral entry and its impact on pathogenesis of HCV infection, development of novel preventive and therapeutic antiviral strategies.

关键词： Hepatitis C virus Viral entry Entry inhibitor Neutralizing antibodies

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土壤有机碳同位素组成在农田生态系统碳循环中的应用进展

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中国生态农业学报（中英文） 2023年第2期31卷 194-205页

作者：李发东栗照鑫乔云峰刘山宝田超朱农 hubert Hirwa Simon Measho 中国科学院地理科学与资源研究所生态系统网络观测与模拟重点实验室北京100101 山东禹城农田生态系统国家野外科学观测研究站/中国科学院禹城综合试验站禹城251200 中国科学院大学资源与环境学院北京100190

土壤有机碳是地球表层储量最高且储存周期最长的生态系统碳库之一。如何提高土壤有机碳稳定性和增强土壤固碳减排能力,是陆地生态系统碳管理可持续战略的关键科学问题。国际学术界一致认为农田生态系统在固碳方面的作用越来越明显,在实... 详细信息

土壤有机碳是地球表层储量最高且储存周期最长的生态系统碳库之一。如何提高土壤有机碳稳定性和增强土壤固碳减排能力,是陆地生态系统碳管理可持续战略的关键科学问题。国际学术界一致认为农田生态系统在固碳方面的作用越来越明显,在实现碳中和的进程中发挥重要的作用。农田管理实践方式会扰动土壤碳循环过程,采取有效的管理方式会使其成为碳汇。目前,国内研究主要集中在耕作方式、施肥和灌溉水平、秸秆还田对农田生产力、碳固持速率、温室气体排放方面的影响,但就农田生态系统有机碳稳定性对不同农田管理方式的响应机制以及与土壤碳排放之间的关系认识尚未明确。^(13)C同位素技术是研究农田土壤碳循环过程的有力工具,通过测定土壤碳排放过程中不同有机碳组分的同位素丰度,能够精准区别土壤呼吸组分和来源,从而更好地揭示土壤有机碳稳定性对农田管理措施的响应机制,为增强土壤碳汇效应和农业可持续发展提供科学依据。以往的研究大多集中在模拟试验以及小范围、短时间监测,与实际差距较大,测量结果会高估或低估实际值。因此,在未来的农田土壤碳循环研究过程中要采取多点、长时间实时原位监测,并结合^(13)C同位素技术,实现土壤CO_(2)排放实时分解,达到揭示土壤有机碳稳定性机制的目的。

关键词：土壤有机碳 ^(13)C同位素农田生态系统碳循环

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