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Separation,speciation and quantification of both chromium(Ⅵ)and chromium(Ⅲ)in tanned leather samples:a comparative study and validation of analytical methods

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Collagen and Leather

Collagen and leather 2023年第2期5卷 51-66页

作者： mónica Gisel Arellano-Sánchez Juliette Vievard Lamia moufarrej Christine Devouge-Boyer marie Hubert-Roux Carlos Afonso m.lanie mignot COBRA UmR CNRS 6014 INSANormandie UniversityUNIROUENAvenue de l'Université76800 Saint-Etienne-du-RouvrayFrance COBRA UMR CNRS 6014IRCOFNormandie UniversityUNIROUEN76821 Mont-Saint-Aignan CedexFrance

In the present work,a comparative study of analytical methods for the simultaneous and quantitative determination of trivalent and hexavalent chromium is *** the analysis by ion chromatography-inductively coupled plasma-mass spectrometry,two different columns were tested,as well as different mobile phases and different pH of the *** optimized analytical method permitted the separation of Cr(Ⅲ)and Cr(Ⅵ)using 75 mmol/L NH_(4)NO_(3)pH 3 as chromatographic *** method was validated and applied to real samples,allowing the determination of both species simultaneously,even when there is a huge difference of concentration between Cr(Ⅲ)and Cr(Ⅵ).Limit of detection and limit of quantification for Cr(Ⅲ)were found to be 0.016 and 0.054μg/L(0.3 and 1.1μg/kg),respectively,and for Cr(Ⅵ)0.13 and 0.43μg/L(7 and 22μg/kg),*** species interconversions were monitored through the use of chromium isotopic standards,which confirmed that the optimized methodology preserves chromium speciation during extraction and ***-transform ion cyclotron resonance-mass spectrometry permitted the structure elucidation of the complex formed during ethylenediaminetetraacetic acid extraction.

关键词： Chromium speciation Tanned leather Interconversions Ion chromatography Inductively coupled plasmamass spectrometry Fourier-transform ion cyclotron resonance mass spectrometry

Analysis of Irrigation Systems Employing Comparative Performance Indicators： A Benchmark Study for National Irrigation and Communal Irrigation Systems in Cagayan River Basin

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Journal of Agricultural Science and Technology(A) 2015年第5期5卷 325-335页

作者： Jeoffrey Lloyd Reyes Bareng Orlando Florendo Balderama lanie Alejandro Alejo Isabela State University Echague 3309 Isabela Philippines

Comparative performance analysis of four irrigation schemes within Cagayan River Basin was assessed using comparative performance indicators between the years 2008 and 2012. The objectives were to establish benchmarks for both productivity and performance of irrigation schemes along the valley and to inquire whether small schemes function better than large schemes. The performance evaluation study of the systems composed of three general performance indicators, based on three domains-（1） system operation performance; （2） agricultural productivity and economics; （3） financial performance. Each indicator was assessed based on the prescribed descriptors used by the International Water management Institute （IWmI） and Food and Agriculture Organization （FAO）. Analysis showed an overall system performance efficiency of 59%, 55%, 47% and 36% for magat River Integrated Irrigation System （mARI1S）, Lucban, Garab and Divisoria Communal Irrigation Systems （CIS）, respectively. In terms of annual productivity performance, Lucban CIS dominates the three other systems with 0.35 kg/m3, which was classified as moderately performing system, while the rest were classified with low productivity index. Financial sustainability of the systems were extremely poor with cost recovery ratio of 0, 0.33, 0.41 and 0.49 for Divisoria, Garab, Lucban and mARIIS, respectively, which were exceptionally below the standard value of at least one. Also, analysis of the indicators revealed that on average, large schemes performed similarly to small-scale schemes, but small schemes were more variable, particularly in input-use efficiency. The benchmarking study will provide strategic information to policy makers of agricultural and irrigation agencies on the existing weaknesses of irrigation systems in the country and determine in a more quantifiable terms levels of potential improvement and intervention targets.

关键词： Communal and national irrigation systems performance benchmarking small and large reservoir schemes.

Prevalence of Chronic Kidney Disease and Associated Factors among HIV Patients in the Era of HAART in Ivory Coast: A Cross Sectional, Analytical Study

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Open Journal of Nephrology 2023年第1期13卷 20-30页

作者： Wognin manzan Anastasie Gonan Yannick Kpan Kehi Jonathan Koffi Reine Abdul Khatibat Tia Weu m.lanie Bourhaima Ouattara Internal medicine Teaching Hospital of Bouaké Alassane Ouattara University Bouaké Ivory Coast

Background: Chronic kidney disease (CKD) may be common among HIV patients living in sub-saharan Africa due to the confluence of CKD risk factors and genetic predisposition. Preventive strategy through early detection and treatment has been advocated for CKD in Africa where majority of patients present late and cannot afford the cost of renal replacement therapy which is not widely available. The purpose of this study was to identify the prevalence and factors associated with CKD among HIV infected adults receiving HAART in a teaching hospital in Ivory Coast. methods: This is a cross-sectional study of HIV patients on Highly Active Anti Retroviral Therapy followed at the HIV clinic of the medical out-patient department of the University teaching hospital of Bouaké from January to December 2021. CKD was defined as a serum creatinine-based estimated glomerular filtration rate ≤ 60 ml/min/1.73 m2. The collected data was analyzed by using Epi Info 2002 software. Results: Four hundred and two HIV-infected adults 18 years and over were recruited during the study period. We noticed 123 (30.6%) males. The mean age was 40 years. CKD was observed in 42 (10.44) patients infected-HIV. Eighty eight point three percent of patients had CD4 more than 500 cells. Low eGFR correlated with age more than 60 years old, worker in public sector, unemployed, no formal education and HIV type 2. Conclusion: Our study identified a prevalence of CKD of 10.44% by CKD EPI equations among HIV patients on HAART that attended the teaching hospital of Bouaké in Ivory Coast. Early screening and follow up of renal functions is important to minimize the risk of developing end stage kidney disease.

关键词： HIV CKD Prevalence Africa

Effect of the Ethanolic Extract of Khaya senegalensis on Some Biochemical Parameters on Rabbit’s in Glucose Overload Condition

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American Journal of Plant Sciences 2015年第1期6卷 240-248页

作者： Essé Agossou m.lanie Ahokpe Justin Behanzin marcellin Takin Ganiou Yessoufou Loica Zohoun Lamine Baba-moussa Alphonse Sezan Laboratoire de Biomembranes et Signalisation Cellulaire Département de Physiologie Animale Université d’Abomey-Calavi Cotonou Benin Laboratoire de Biologie et de Typage moléculaire en microbiologie Département de Biochimie et de Biologie Cellulaire Université d’Abomey Calavi Cotonou Benin

The effect of the ethanolic extract Khaya senegalensis on some biochemical parameters was tested in rabbits with normal glucose and glucose overload. Phytochemical screening after three batches of 6 rabbits race (TBD) were treated with the extract in oral doses of respectively 10, 25 and 50 mg/kg body weight for 30 days;three other groups receiving respectively these doses of the extract were placed under a priori temporary overload of glucose;a control group received instead distilled water treatment. Blood glucose, triglycerides and total cholesterol were measured by spectrophotometry and weight gain of the animals was performed at the beginning of the experiment and every 2 weeks during the study period. The phytochemical screening revealed the presence of polyphenolic compounds (majority) of saponins of anthracene derivatives and steroids in the extract. The test results indicate that under the dose of 50 mg/kg body weight (BW) there was a significant decrease (p le or body weight of rabbits.

关键词： Rabbit Khaya senegalensis Glucose Lipid Profile

Detection of Human Papillomavirus DNA and E6/E7 mRNA from HPV Genotypes 16, 18, 31 and 33 in Histologically Confirmed Cases of Cervical Cancer and Precancerous lesions in Burkina Faso

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American Journal of molecular Biology 2023年第4期13卷 276-290页

作者： Théodora mahoukèdè Zohoncon Shoukrat Ohuwa Toyin Bello Prosper Bado Rogomenoma Alice Ouédraogo Estelle Ouédraogo Ina marie Angèle Traoré Abdoul Karim Ouattara Florencia Wenkunni Djigma Albert Théophane Yonli Assita Sanou-Lamien Olga m.lanie Lompo Jacques Simpore Laboratoire de Biologie moléculaire et de Génétique (LABIOGENE) Université Joseph KI-ZERBO Ouagadougou Burkina Faso Centre de Recherche Biomoléculaire Pietro Annigoni (CERBA) Ouagadougou Burkina Faso Faculté des Sciences de la Santé Université Saint Thomas d’Aquin (USTA) Ouagadougou Burkina Faso Centre Hospitalo-Universitaire Yalgado Ouedraogo Ouagadougou Burkina Faso Pathological Anatomy and Cytology Laboratory Université Joseph Ki-Zerbo Ouagadougou Burkina Faso

Introduction: Cervical cancer, caused by persistent high-risk human papillomavirus (HPV) infection, remains a global public health problem. The cellular transformation and maintenance of the malignant phenotype of these HPVs are attributed to the viral oncoproteins E6 and E7. Objective: This study aims to detect the presence of human papillomavirus DNA and E6/E7 oncoprotein mRNA of HPV genotypes 16, 18, 31 and 33 in cases of cervical cancer and precancerous lesions, histologically confirmed in Burkina Faso. methods: This descriptive cross-sectional study focused on cases of cervical cancer and high-grade intraepithelial neoplasia (CIN) and was conducted from June to December 2022. One hundred (100) samples of fixed and paraffin-embedded tissues were collected from the pathological anatomy and cytology laboratories of hospitals in the capital of Burkina Faso. High-risk human papillomavirus (HR-HPV) DNA was detected using multiplex real-time PCR, while the presence of E6 and E7 mRNA in cervical cancer and high-grade CIN samples was determined using real-time Reverse Transcriptase-PCR (RT-PCR) with Taqman probes. Results: The mean age of women diagnosed with cervical cancer and high-grade CIN was 50.81 ± 13.65 years, ranging from 22 to 82 years. Cervical cancer and high-grade CIN were positive for at least one high-risk human papillomavirus (HR-HPV) in 80% of cases. The most prevalent genotypes observed were HPV16, 18, 31, and 33, collectively accounting for 70.08% of cases. Of the 89 samples that tested positive for HR-HPV genotypes 16, 18, 31, and 33, 88 (98.88%;95% CI: [94.58 - 99.94]) were also positive for the presence of mRNA encoding the E6 and E7 oncoproteins of HPV16, 18, 31, and 33. Conclusion: In the presence of HPV DNA, testing for E6 and E7 oncoprotein mRNA could serve as a promising biomarker and valuable tool for improved assessment of the progression to cervical cancer.

关键词： HPV E6/E7 Cervical Cancer Precancerous lesions Burkina Faso

Challenges in the Technology Development for Additive manufacturing in Space

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Chinese Journal of mechanical Engineering(Additive manufacturing Frontiers) 2022年第1期1卷 83-95页

作者： Andrea Zocca Janka Wilbig Anja Waske Jens Günster martinus Putra Widjaja Christian Neumann m.lanie Clozel Andreas meyer Jifeng Ding Zuoxin Zhou Xiaoyong Tian BAm Bundesanstalt für materialforschung und-prüfung Berlin12203Germany Institut für materialphysik im Weltraum Deutsches Zentrum für Luft-und Raumfahrt(DLR)51170 KölnGermany Beijing Space Vehicle General Design Department CASTBeijing100094China State Key Laboratory for manufacturing System Engineering Xi’an Jiaotong UniversityXi’an710049China

Instead of foreseeing and preparing for all possible scenarios of machine failures,accidents,and other challenges arising in space missions,it appears logical to take advantage of the flexibility of additive manufacturing for“in-space manufacturing”(ISm).manned missions into space rely on complicated equipment,and their safe operation is a great *** in mind the absolute distance for manned missions to the moon and mars,the supply of spare parts for the repair and replacement of lost equipment via shipment from Earth would require too much *** the high flexibility in design and the ability to manufacture ready-to-use components directly from a computer-aided model,additive manufacturing technologies appear to be extremely attractive in this ***,appropriate technologies are required for the manufacture of building habitats for extended stays of astronauts on the moon and mars,as well as material/*** capacities for sending equipment and material into space are not only very limited and costly,but also raise concerns regarding environmental issues on ***,not all materials can be sent from Earth,and strategies for the use of in-situ resources,i.e.,in-situ resource utilization(ISRU),are being *** the manufacturing of both complex parts and equipment,as well as for large infrastructure,appropriate technologies for material processing in space need to be developed.

关键词： Zero-g microgravity Additive manufacturing Regolith Steel Fiber PEEK

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助力玻璃工业脱碳：耐火材料解决方案的角色

助力玻璃工业脱碳：耐火材料解决方案的角色

Pneumatosis Cystoides Intestinalis Revealed by an Occlusive Syndrome: A Case Report

第25届全国玻璃窑炉技术研讨交流会

作者： michel Gaubil m.lanie ALleN LARUT 法国西普耐火材料

除了以最优成本可持续生产高质量玻璃这样的典型挑战外,玻璃行业正面临着新的转变和挑战:碳中和以及循环经济。实现低碳玻璃生产是玻璃行业未来几年的第一个关键挑战。许多政府和公司已经宣布了在未来几十年实现碳中和的明确目标,而玻... 详细信息

除了以最优成本可持续生产高质量玻璃这样的典型挑战外,玻璃行业正面临着新的转变和挑战:碳中和以及循环经济。实现低碳玻璃生产是玻璃行业未来几年的第一个关键挑战。许多政府和公司已经宣布了在未来几十年实现碳中和的明确目标,而玻璃工业也必须发挥它的作用。循环经济是玻璃产业面临的第二大挑战。除了增加对破碎料的使用率,还必须考虑窑炉的整个生命周期,包括其寿命的结束和耐火材料的回收。耐火材料解决方案对玻璃窑炉及其性能是必不可少的一环。因此,其在支持玻璃制造商应对这些新挑战方面发挥着关键作用。

关键词：玻璃工业挂钩砖碳中和

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Open Journal of Pathology 2023年第4期13卷 210-216页

作者： Franck Auguste Hermann Adémayali Ido Aimé Sosthène Ouédraogo Ibrahim Savadogo Rakiswendé Alexis Ouédraogo Souleymane Ouattara Assita Lamien-Sanou Olga m.lanie Lompo Department of Anatomy and Pathological Cytology CHU Tengandogo Ouagadougou Burkina Faso Department of Anatomy and Pathological Cytology CHU Bogododgo Ouagadougou Burkina Faso Department of Anatomy and Pathological Cytology CHU-R of Ouahigouya Ouahigouya Burkina Faso Histo-Embryo-Cytogenetics Department Bogododgo University Hospital Ouagadougou Burkina Faso Department of Anatomy and Pathological Cytology CHU Yalgado Ouédraogo Ouagadougou Burkina Faso

Introduction: Pneumatosis cystoides intestinalis is a rare condition characterized by the presence of gas cysts in the intestinal wall. It can affect different segments of the digestive tract. male patients over 50 years old seem to be more affected. Classically, one opposes the primary or idiopathic forms and the secondary forms. Case Report: We report the case of a 62-year-old female patient with a history of treated peptic ulcers, who presented with episodes of intermittent atypical abdominal pain that worsened abruptly. The physical examination revealed a surgical abdomen with tenderness to palpation. The patient underwent a jejunal resection. The pathological examination showed macroscopically an intestinal fragment with confluent subserosal and intestinal intraparietal bullae. On opening, the portion containing the bullae was thickened, infarcted, congestive, hemorrhagic, and brittle with narrowing of the intestinal lumen. The bullae are tense and leave serosities. On histological examination, the intestinal wall was very congestive with hemorrhagic patches of suffusion. There were optically empty cystic formations that do not communicate with the digestive lumen. The adjacent mucosa is the site of a moderate subacute inflammatory reaction. Conclusion: Pneumatosis cystoides intestinalis is a rare and usually benign pathology. The symptoms, when they exist, are not specific. Its physiopathology is still very much debated. The prognosis is generally good. The knowledge of this pathology is necessary to avoid invasive explorations and heavy treatment without interest for the patient.

关键词： Cysts Gas Intestinal Pathology

A Case of Cerebral Aspergillosis in a Patient with Chronic Lymphoid leukemia

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Open Journal of Pathology 2023年第4期13卷 217-223页

作者： Aimé Sosthène Ouédraogo Franck Auguste Hermann Adémayali Ido Ibrahim Savadogo Souleymane Ouattara Rakiswendé Alexis Ouédraogo Assita Lamien Sanou Olga m.lanie Lompo Pathological Anatomy Service of Bogodogo Teaching University Hospital Ouagadougou Burkina Faso UFR/SDS Joseph Ki-Zerbo University Ouagadougou Burkina Faso Pathological Anatomy Service of Tingandogo Ouagadougou Burkina Faso Pathological Anatomy Service of Ouahigouya Ouahigouya Burkina Faso Embryology Cytogenetics and Reproductive Biology of Bogodogo Teaching University Hospital Ouagadougou Burkina Faso Pathological Anatomy Service of Yalgado Ouédraogo Ouagadougou Burkina Faso

Cerebral aspergillosis commonly affects immunocompromised hosts, primarily patients on immunosuppressive therapy and those with acquired or immunodeficient states such as AIDS. We report a case of cerebral aspergillosis in a 39-year-old woman with a history of treated chronic lymphocytic leukemia (CLL). multiple fragments of fixed tissues with formalin were freshly sent to the laboratory. An extemporaneous examination was performed by spreading. The rest of the sample was embedded in paraffin and studied according to the standard histological method with special stains and an immunohistochemical study. A microscopic observation showed abundant clusters of tangled mycelial filaments, Grocott+. At the edge, a nervous tissue was observed remodeled by an abundant inflammatory infiltrate consisting essentially of small lymphocytes and plasma cells. Additional immunohistochemistry was performed using anti-CD20, anti-CD3, anti-CD5, anti-CD23, anti-Bcl2, anti-Ki67, anti-IgD and anti-Kappa and Lamda antibodies. All taken together there were no further founding in support of a secondary localization of CLL. Cerebral aspergillosis is quite rare and often occurs in a context of immunosuppression. This case indicates the importance of a close collaboration between clinicians and pathologists for optimal patient care.

关键词： Cerebral Aspergillosis CLL Grocott Gomori Immunohistochemistry