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Evaluation of Particle Properties of MgO/TiO₂ Material by Monte Carlo Simulation Method

Journal of Materials Science and Chemical Engineering 2024年第2期12卷 49-60页

作者： Koffi N’guessan Placide Gabin Allangba yves Kily Hervé Fagnidi Hermann N’guessan Zié Traoré Koffi Arnaud Kamenan Physics Pedagogical Unit Laboratory of Environmental Science and Technology University Jean Lorougnon Guédé Daloa C&#244te d’Ivoire Laboratory of Fundamental and Applied Physics University Nangui Abrogoua Abidjan C&#244te d’Ivoire Department of Medical Physics University of Trieste and International Centre for Theoretical Physics (ICTP) Trieste Italy Department of Science and Technology University Alassane Ouattara Bouaké C&#244te d’Ivoire Nuclear Physics and Radiation Protection Team Laboratory of Material Sciences Environment and Solar Energy University Felix Houphouet-Boigny Abidjan C&#244te d’Ivoire Department of Mathematics Physics and Chemistry UFR Biological Sciences University Peleforo Gon Coulibaly Korhogo C&#244te d’Ivoire

The simulation by the Monte Carlo method executed by the software PyPENELOPE proved effective to specify the particle propagation characteristics by calculating the absorption fractions, backscattering and transmission of electrons and secondary photons under the incidence of 0.5 to 20 KeV range of primary electrons. More than 99.9% of the primary electrons were transmitted in the 125 nm thick MgO/TiO2 material at 20 KeV. This occurred because several interactions took place in the transmitted primary irradiation such as characteristic, fluorescence, and bremsstrahlung produced when of the occupation of the KL3, KL2, KM3, and KM2 shell and sub-shell of titanium and magnesium which are the elements with a high atomic number in the material. The transmission particle characteristic of this material is therefore an indicator capable of improving the electrical performance and properties of the sensor.

关键词： Monte Carlo PyPENELOPE Primary Electrons Transmission MgO/TiO2

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Post Blast Tympanic Perforations, Clinical and Paraclinical Study at Six Yaounde Hospitals

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International Journal of Otolaryngology and Head & Neck Surgery 2024年第2期13卷 126-134页

作者： Andjock Nkouo yves Christian Lekassa Pierrette Meva’a Biouele Roger Christian Moboung Prudence Mindja Eko David Djomou Francois Njock Richard Ndjolo Alexis Ophthalmology-Ear-Nose-Throat (ENT)-Stomatology Department Faculty of Medicine and Biomedical Sciences University of Yaounde I Yaounde Cameroon ENT-Cervico-Facial-Surgery (CFS) Service Yaounde General Hospital Yaounde Cameroon ENT-CFS Service Omar Bongo Ondimba Military Teaching Hospital Libreville Gabon ENT-CFS Service Yaounde Central Hospital Yaounde Cameroon ENT-CFS Service Yaounde Teaching Hospital Yaounde Cameroon ENT-CFS Service Douala General Hospital Douala Cameroon

Introduction: Post-blast tympanic perforations represent an entity of traumatic perforations;various mechanisms are at the origin of the latter, and the increase in conflicts and acts of violence are increasing the studies on this subject, but few data are available in our context. Objective: This paper aims to study post-blast tympanic perforations in Yaounde, specifically the epidemiological, clinical, and paraclinical aspects. Methodology: We conducted a descriptive cross-sectional study with retrospective and prospective data collection in six Yaounde hospitals over 63 months from January 1, 2018, to March 31, 2023. All patients with at least one post-blast tympanic perforation were included. Socio-demographic, clinical and paraclinical data were collected on a questionnaire and analysed using SPSS 28 software. Results: We included 124 patients. The prevalence of post-blast tympanic perforations was 0.1% of the consultations in the departments. 71 The average age was 28.6 ± 9.1 years, with extremes ranging from 7 to 49 years. The median consultation time was five days. The most frequent injury circumstances were physical aggression (81.45%) and armed conflict (10.5%). The injury mechanisms were slaps (75%), punches (21.74%) and grenades (4.8%). The main symptoms on admission were hearing loss (63.7%), tinnitus (58.1%) and otalgia (57.3%). The tympanic perforations were unilateral in all cases, the anterior-inferior location was more characteristic, and the deafness was conductive in 58.3% of cases, followed by mixed deafness in 23.3% of cases. Conclusion: Post-blast tympanic perforations are rare in consultation. The population is primarily male and from the second decade of life. The main circumstance is aggression.

关键词： Tympanic Perforation Blast Yaounde

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Profile of Multidrug Resistant Bacteria in Bukavu Hospitals and Antimicrobial Susceptibility to Escherichia coli, Pseudomonas aeruginosa, Proteus mirabilis and Staphylococcus aureus

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Advances in Microbiology 2024年第4期14卷 209-225页

作者： Christian Ahadi Irenge Freddy Bikioli Patient Birindwa Mulashe Félicien Mushagalusa Kasali Patient Wimba Aksanti Lwango yves Coppieters Justin Ntokamunda Kadima Department of Pharmacy and Public Health Official University of Bukavu Bukavu Democratic Republic of the Congo Department of Tropical Medecine Faculty of Medecine University of Kinshasa Kinshasa Democratic Republic of the Congo Department of Microbiology Faculty of Medicine Official University of Bukavu Bukavu Democratic Republic of the Congo Department of Medical Biology Higher Institute of Medical Technics Bukavu Democratic Republic of the Congo School of Public Health Free University of Bruxelles Bruxelles Belgium School of Medicine College of Medicine and Health Sciences University of Rwanda Huye Rwanda

Objective: To evaluate the spread of Multidrug-Resistant (MDR) bacterial infections in Bukavu hospitals and test antimicrobial susceptibility patterns of some isolates to usual marketed antibiotics. Methods: The prevalence of MDR strains was determined by using general antimicrobial susceptibility data collected from 3 hospital laboratories. The susceptibility of some isolates to usual antibiotics was processed by agar diffusion method with standard E. coli ATCC8739 and standard antibiotics discs as controls. The tested antibiotics were ampicillin, ceftriaxone, gentamicin, chloramphenicol and ciprofloxacin. Results: At the 3 hospitals, 758 tests were realized in urine, pus, stool, FCV, blood, LCR, split and FU specimens;46 strains were unidentified and 712 strains were identified. Of 712 identified strains, 223 (31.4%) were MDR or XDR strains including Escherichia coli, Klebsiella pneumoniae, Enterobacter, Proteus mirabilis, Salmonella enterica, Pseudomonas aeruginosa, Citrobacter freundii, Morganella morganii, Enterococcus faecalis and E. faecium, Neisseria gonorrohoae, Staphylococcus aureus, coagulase-negative, staphylococci, Streptococcus pneumoniae and Streptococcus pyogenes. Of the infected patients, 36 (21.5%) children were under 16 years and 188 (78.5%) adults were predominately women (58.5%). The susceptibility test showed that all strains but S. aureus were resistant to ampicillin and amoxicillin and ciprofloxacin. Gentamicin, ceftriaxone, and chloramphenicol remain partially active (27% - 80%) against P. mirabilis, E. coli and P. aeruginosa. The resistance is more likely related to strain mutation than to pharmaceutical quality of the antibiotics prescribed. Conclusion: Both data from hospital laboratories and in vitro post-testing findings confirmed the ongoing elevated prevalence of MDR strains in Bukavu. The causes of antibiotic misuse and socio-economic determinants of the phenomenon of resistance should be scrutinized in order to take adequate strateg

关键词： Prevalence Antimicrobials Multi-Resistance Bacterial Sensitivity Bukavu DRC

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我眼里的法中“兄弟情”

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中国新闻发布（实务版） 2024年第2期 20-22页

作者：莫言中央广播电视总台CGTN法语频道

尽管相隔万里,悠久、高雅的中国文明一直深深吸引着法国民众。回顾近几百年的历史,从文献典籍、名胜古迹和领导人会晤中,我们可以看到这对“法中兄弟”友好交往的许多珍贵瞬间。“太阳王”路易十四(1638—1715)在其统治期间,对中国文化... 详细信息

尽管相隔万里,悠久、高雅的中国文明一直深深吸引着法国民众。回顾近几百年的历史,从文献典籍、名胜古迹和领导人会晤中,我们可以看到这对“法中兄弟”友好交往的许多珍贵瞬间。“太阳王”路易十四(1638—1715)在其统治期间,对中国文化和历史表现出了浓厚的兴趣。

关键词：文献典籍路易十四友好交往名胜古迹浓厚的兴趣兄弟历史

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Cost of Medical Treatment for Primary Open-Angle Glaucoma in Relation to Patients’ Income and Its Impact on the Prognosis of the Disease, in Bouaké University Hospital

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Open Journal of Ophthalmology 2024年第1期14卷 8-17页

作者： yves Ouattara Liliane Ella Godé Zana Diabaté Franck Hermann Koffi Mamadou Korka Diallo Philippe Emile France Koffi Bilé Diomandé François Gossé Ibrahim Abib Diomandé Ophthalmology Department of Bouaké University Hospital (CHU de Bouaké) Bouaké C&#244te d’Ivoire

Introduction: Medical treatment for POAG is continuous and lifelong treatment. The aim of this study was to evaluate the relationship between the cost of this treatment and patients’ income and the impact of this relationship on treatment compliance. Materials and Methods: Prospective cross-sectional study with a descriptive aim covering sociodemographic data, average incomes, and direct and indirect costs of treatment of 57 patients followed for POAG during the period from January 1, 2012, to December 31, 2016 (5 years). Results: The patients were aged 25 to 77 years (mean = 54.4 years) with a male predominance (sex ratio = 1.5). Retirees were the most represented (26.32%), followed by workers in the informal sector (14.04%) and housewives (12.28%). Patients who had an annual income less than or equal to 900,000 CFA francs (€1370.83) per year represented 56.14% and those who did not have health coverage represented 57.89%. The treatment was monotherapy (64.91%), dual therapy (31.58%) or triple therapy (3.05%) and the average ratio of “annual cost of treatment to annual income” was 0.56 with for maximum 2.23 and 0.02 as minimum. Patients who considered the cost of treatment unbearable for their income represented 78.95%. Conclusion: Prevention of blindness due to glaucoma requires early detection but also the establishment of health coverage mechanisms to improve compliance with medical treatment. In addition, consideration should be given to the development of glaucoma surgery in our country, the indication of which could be the first intention in certain patients, considering for those patients, the geographical and financial accessibility of medical treatment. .

关键词： Primary Open-Angle Glaucoma Treatment Cost Medical Treatment Income Blindness

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Plasma transthyretin is a nutritional biomarker in human morbidities

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Frontiers of Medicine 2022年第4期16卷 540-550页

作者： yves Ingenbleek Faculty of Pharmacy Laboratory of NutritionUniversity of StrasbourgRoute du RhinIllkirch–Graffenstaden F-67401(Strasbourg)France

Transthyretin(TTR)is a small liver-secreted plasma protein that shows close correlations with changes in lean body mass(LBM)during the entire human lifespan and agglomerates the bulk of nitrogen(N)-containing substrates,hence constituting the cornerstone of body *** acids(AAs)dietary restriction causes inhibition of TTR production and impairs the accretion of LBM *** disorders result in cytokine-induced abrogation of TTR synthesis and urinary leakage of nitrogenous *** together,the data indicate that malnutrition and inflammation may similarly suppress the production of TTR through distinct and unrelated pathophysiological mechanisms while operating in concert to downsize LBM *** hepatic synthesis of TTR integrates both machineries,acting as a marker of reduced LBM resources still available for defense and repair *** operates as a universal surrogate analyte that allows for the grading of residual LBM capacity to reflect disease *** of TTR is a simple,rapid,and inexpensive micromethod that may be reproduced on a daily basis,hence ideally suited for the follow-up of the most intricated clinical situations and as a reliable predictor of any morbidity outcome.

关键词： lean body mass nutritional status transthyretin malnutrition inflammation amyloidosis

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Peripheral Facial Paralysis in People Living with Human Immunodeficiency Virus (HIV)

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International Journal of Otolaryngology and Head & Neck Surgery 2024年第3期13卷 168-177页

作者： Lekassa Pierrette Andjock Nkouo yves Christian Mouinga Abayi Alex Davy Assoumou Ada Prudence BiyeNgoghe Prudence Ngoma Manfoumbi Albert Brice Manfoumbi Manfoumbi Kévin Dimitri Miloundja Jerome Nzouba Léon ENT and CFS Department Omar Bongo Ondimba Army Instruction Hospital Libreville Gabon Department of Surgery and Surgical Specialties University of Health Sciences Owendo Gabon ENT and CFS Department Yaound&#233 General Hospital Yaound&#233 Cameroon Ophthalmology Department Omar Bongo Ondimba Army Instruction Hospital Libreville Gabon Ophthalmology Department Owendo University Hospital Center Libreville Gabon Internal Medicine Department Omar Bongo Ondimba Army Instruction Hospital Libreville Gabon

Introduction: Peripheral facial palsy (PFP) is a frequent reason for ENT consultations. It is a common complication of human immunodeficiency virus (HIV) infection. The aim of this study was to describe the diagnostic and therapeutic aspects and to establish the correlation between PFP and HIV in our context. Patients and Method: This was a retrospective descriptive study conducted in the ENT and CFS department of the HIAOBO, covering the medical records of patients hospitalized for taking a PFP on HIV terrain from January 1, 2016 to December 31, 2020. Results: The study involved 17 patients, 10 men (59%) and 7 women (41%), a sex ratio of 1.4. The average age was 39 years with the extremes of 11 and 69 years. Shopkeepers reported 9 cases (53%). The reason for consultation was facial asymmetry in 11 cases (100%). The delay in consultation during the first week was 82.4%. Clinical signs were unilateral facial asymmetry, the opening of the palpebral fissure and lacrimation. All patients received medical treatment for PFP and HIV. Evolution was favorable, with complete recovery and no sequelae in 82.4% of cases. Surgery was performed in one case. Conclusion: PFPs are common in HIV infection. Diagnosis is clinical and management is multidisciplinary. Progression depends on the length of time taken to treat the disease.

关键词： Peripheral Facial Paralysis HIV HIAOBO

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Effect of Biofertilizers on the Agromorphological Parameters of Three Okra Cultivars in Southern Côte d’Ivoire

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Agricultural Sciences 2024年第4期15卷 408-422页

作者： Guinagui N’doua Bertrand Nomel Meless Patrice Sanogo Souleymane Kouassi N’dri Pacôme Kouadio Edouard yves Gilchrist Dao Jonas Patrick Koné Dapah Sara Fatim Koné Daouda Fatogoma Sorho Plant Physiology and Pathology Teaching and Research Unit UFR Biosciences F&#233lix Houphou&#235t-Boigny University Abidjan C&#244te d&#8217Ivoire WASCAL Center/African Center of Excellence on Climate Change Biodiversity and Sustainable Agriculture (WASCAL/CEA-CCBAD) Abidjan C&#244te d&#8217Ivoire

Okra (Abelmoschus esculentus L.) is an herbaceous plant of the Malvaceae family. In Côte d’Ivoire, okra production is estimated to be over 193,000 tons. This low production is largely due to poor soils and hardly covers the needs of the population. To remedy this, growers systematically use mineral fertilizers. However, these fertilizers pollute the environment. To find an alternative to chemical fertilization and increase production, the effect of biofertilizers (Spaawet, Retone, Super Gro) compared with NPK mineral fertilizer was evaluated on Divo, Teriman, and Djonan F1 cultivars. The trial was set up in a factorial block design with three replications. Plant height, number of functional leaves, and crown diameter were assessed at 60 days after sowing (DAS). The time to 50% flowering, production time, and fruit yield were calculated. The results showed that the biofertilizer Retone induced the highest heights and number of functional leaves, with averages of 61.89 cm and 29.88 leaves, respectively. The diameter at the crown (17.77 mm) was highest with the NPK mineral fertilizer, and the shortest 50% flowering time, with an average of 47.61 days, was also obtained with the biofertilizer Retone. The NPK mineral fertilizer produced the longest production time, with an average of 35.25 days. The highest yields were obtained using Retone (11.07 t/ha) and NPK (9.52 t/ha) fertilizers. The “Divo*Retone” interaction produced the highest yield with an average of 12.19 t/ha. The biofertilizer Retone could therefore be used as an alternative fertilizer to chemical fertilization in okra crops, given its effect on the parameters assessed.

关键词： Biofertilizer Retone Mineral Fertilizer Okra Yield Côte d’Ivoire

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从涂尔干到列维:亲属结构理论与葛兰言的中国研究

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中华文化论坛 2024年第2期 134-144页

作者： [法]顾亭儒胡锐王炳坤法国远东学院东南亚比较民族学研究室法国远东学院清迈中心四川大学道教与宗教文化研究所四川成都610064 北京外国语大学法语学院北京海淀100089

葛兰言在其对古代中国的研究中承续了涂尔干对亲属关系问题的关注,列维-斯特劳斯的亲属结构理论则深受葛氏之结构视角的影响,本文对这条代际传承、不断扬弃的学脉进行了梳理与分析。在《中国古代之婚姻范畴与亲属关系》中,葛兰言借助丰... 详细信息

葛兰言在其对古代中国的研究中承续了涂尔干对亲属关系问题的关注,列维-斯特劳斯的亲属结构理论则深受葛氏之结构视角的影响,本文对这条代际传承、不断扬弃的学脉进行了梳理与分析。在《中国古代之婚姻范畴与亲属关系》中,葛兰言借助丰富的史料,颠覆了对乱伦禁忌的传统解读,并试图从中国古代氏族的外婚制中建构出以交换与互惠为基础的一般性流通规律。列维-斯特劳斯批判地继承了葛兰言的研究,将其关于婚姻类型与流通的结构分析化为己用,形成了《亲属关系的基本结构》的理论支柱,该作也成为法国人类学史上具有划时代意义的重要成果。不难发现,自涂尔干将亲属关系置于社会团结视阈下重新考察伊始,葛兰言与列维-斯特劳斯都在接续前人研究的同时实现了新的突破。

关键词：法国汉学亲属关系葛兰言列维-斯特劳斯涂尔干

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Epidemio-Clinical-Histopathological Aspects and Therapeutics of Squamous Cell Carcinoma of the Conjunctival at the University Hospital Center of Bouake

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Open Journal of Ophthalmology 2024年第2期14卷 159-167页

作者： Philippe Emile France Koffi Bile Pierre Windinmanegde Djiguimde Gossé François Diomandé Zana Diabate Kouassi Franck-Hermann Koffi Liliale Ella Godé Ange Mickael Goule Opeyemi Babayeju yves Ouattara Ibrahim Abib Diomande Ophthalmology Department University Hospital Center Bouake C&#244te d&#8217Ivoire Ophthalmology Department University Hospital Center Bogodogo Ouagadougou Burkina Faso

Introduction: Squamous cell carcinoma of the conjunctiva is one of the most common malignancies in the elderly. Purpose: To describe the specific aspects of squamous cell carcinoma of the conjunctiva and to determine the therapeutic modalities. Materials and Methods: Descriptive cross-sectional retrospective study carried out at the University Hospital Center of Bouake over a period of 9 years (From January 2015 to December 2023). We identified all malignant oculo-adnexal and orbital tumors whose histopathological diagnosis was confirmed;monitoring the sorting of squamous cell carcinomas of the conjunctiva among these cancers and studying the different parameters linked to them. Results: The average age of patients is 44.3 years. Male predominance with a sex ratio of 1.12. HIV was the majority ATCD with 64.7%. The main reason for consultation was exophthalmos (36.11%). The average consultation time was 10 months 13 days. Invasive differentiated conjunctival squamous cell carcinoma was predominant at 55.56%. Enucleation was the most performed surgical method. Conclusion: Squamous cell carcinoma of the conjunctiva is a malignant ocular tumor of the elderly whose frequency increases in young adults infected with HIV-AIDS. Invasive differentiated forms are increasingly encountered, limiting treatment to mutilating surgery.

关键词： Malignant Tumor Ocular Carcinoma Conjunctiva

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