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Clinical and Epidemiological Features and Management of Neonatal Hypoglycemia at the University Teaching Hospital of Treichville (Abidjan-Côte d’Ivoire)

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Open Journal of Pediatrics 2017年第4期7卷 320-330页

作者： Gneneyeri Joseph Ouattara Lassina Cissé Gervais Koffi jean-jacques atteby yao Jacob Enoh Corinne Sei Soumahoro Oulai Department of Paediatrics University Teaching Hospital of Treichville Abidjan Cote d’Ivoire Unit of Biochemistry Central Laboratory University Teaching Hospital of Treichville Abidjan Cote d’Ivoire

The purpose of this study is to determine the prevalence, the characteristics of hypoglycaemia in the newborn admitted to emergency departments of teaching Hospital of Treichville, Abidjan and to evaluate the relevance of capillary blood glucose in this diagnosis. Patients and Methods: This prospective cross-sectional study was held from 01 February to 25 June 2017 in the Pediatric Emergency Department. It involved 201 newborns under 24 hours of age who consulted in pediatric emergency for any reason. Data were collected from parent direct interviews, analysis of the follow-up record, physical examination of the newborn, results of glucose level in the capillary blood at heel and in venous blood. On dry tube and gray tube (containing sodium fluoride and potassium oxalate), the blood glucose on the latter tube constituting the reference blood glucose, with neonatal hypoglycaemia defined by a venous blood glucose less than or equal to 2.5 mmol/l (0.45 g/l). The statistical tests used were the frequency comparison, the Chi Square, the Fisher Test with a significance threshold p 0.05 or the Odds-ratio with a confidence interval of 95% and a significance threshold of 5%, but also with the correlation coefficient. Results: Newborns of less than 3 hours of life (70.6%) were the most represented with a male predominance (sex ratio = 2.9). The reasons for consultation were dominated by neurological disorders (36.5%), prematurity (31.8%), and fever (22.2%). The average time to complete the blood glucose test was less than one hour after the sampling in 6.5% of the cases. The mean blood glucose was 0.59 g/l (3.28 mmol/l) with extremes ranging from 0.15 to 1.8 g/l (0.83 mmol/l to 10 mmol/l). The prevalence of hypoglycemia by the instantaneous glycemic method was 15.9%. On tube containing sodium fluoride and potassium oxalate, it was 20.4%, while the prevalence of red blood cell hypoglycemia was 38.1%. A good correlation was found between capillary glycemia and gray tube with r

关键词： Hypoglycaemia Newborn Prevalence Emergency

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Epidemiological, Clinical Progress Aspects of Congenital Heart Disease with Neonatal Revelation at the Mother-Child Hospital of Bingerville (HME) Concerning 98 Cases from January 2021 to December 2022 (Côte d’Ivoire)

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Open Journal of Pediatrics 2024年第1期14卷 89-100页

作者： Adja Evelyne Akaffou-Gbery Richard Azagoh-Kouadio Anne-Lise Laetitia Mobio jean-jacques yao atteby Serenah Marie Janice N’vrah Anoh Kouassi Raoul yao Department of Paediatrics and Neonatology H&#244pital Mère-Enfant de Bingerville (HME) Bingerville C&#244te d’Ivoire Department of Medical Pediatrics and Specialties CHU de Angré Abidjan C&#244te d’Ivoire

Introduction The distribution of congenital heart disease (CHD) in sub-Saharan Africa is highly imprecise and varies from one region to another due to the inequality of diagnostic facilities. The aim of this study was to determine the in-hospital prevalence of congenital heart disease in children at the Mother-Child hospital of Bingerville (HME) by specifying the diagnostic, therapeutic and evolutionary aspects. Materials and methods We conducted a retrospective, descriptive, cross-sectional study at HME of Bingerville from January 2021 to December 2022. All newborns with congenital heart disease confirmed by echocardiography were included in the study. Results Of 656 admissions to the neonatology department over the study period, congenital heart disease accounted for 14.9% (98/656) of cases. In our series, 76.7% were diagnosed before the 1st week of life, with a mean chronological age of 5.18 days and extremes of 0 and 46 days. There were as many male patients (50%) as female (50%), i.e. a sex ratio of 1. These newborns were premature in 60.2% of cases, with a mean and median gestational age of 34 weeks’ amenorrhea. Most were left-right shunts (90.8%). Persistent ductus arteriosus (PDA) (48.9%) predominated, followed by atrial septal defect (38.7%), ventricular septal defect (13.3%), common trunk artery (CTA) (3.1%) and open septal pulmonary atresia (OSPA) (1%) as the primary cyanogenic heart disease. Pulmonary arterial hypertension (PAH) (50%) was primary in 38.8% and secondary (61.2%). The mortality rate was 30.6%, and all CTA patients died (100%), with a significant statistical relationship (p = 0.027). Progression under treatment was marked by clinical stabilization (68/98) in 69.4% of cases. Conclusion: Congenital heart disease is relatively common at the Bingerville HME. Access to echocardiography should be facilitated in neonatology departments for rapid diagnosis and optimal management of congenital heart disease in newborns.

关键词： Newborn Congenital Heart Disease Côte d’Ivoire

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Growth Profile of 100 Breastfeeding Children with Early Introduction of Infant Formulas in Abidjan, Côte d’Ivoire

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Open Journal of Pediatrics 2017年第4期7卷 236-244页

作者： Richard Azagoh-Kouadio Kouadio Vincent Asse jean-jacques yao atteby Lassina Cisse Jacob Slanziahuelie Enoh Ehouman Mocket Adolphe Stéphane Koffi-Djadan Soumahoro Oulai Paediatric Ward of University and Teaching Hospital of Treichville Abidjan Cote d’Ivoire Paediatric Ward of University and Teaching Hospital of Bouake Bouaké Cote d’Ivoire University of Stellenbosch Cape Town South Africa

Objective: To describe the growth profile of breastfeeding babies following early introduction of infant formulas to improve the feeding pattern of the young infant. Methodology: This is a longitudinal descriptive study conducted in 2 medical clinics in Abidjan from 11-Jun-2013 to 15-Dec-2016 on 100 healthy newborn babies with the introduction of infant formulas before 6 months of life. The anthropometrics parameters were compared to those of WHO. Results: The exclusive breastfeeding rate was 5%. Ablactation occurred within 12 months in 95% of cases. All Infants have doubled and tripled their birth weight at 3 and 9 months respectively. The height and the head circumference at birth increased by 50% and 37% respectively at 12 months. Compared to WHO growth charts, the weight gain for the girls at 3 months was 12.4% higher and for the boys was 7.3% higher at 6 months. On the other hands, the statural gain at 12 months was 50% lower than the WHO standards while the head circumference was 37.8% and 45.5% higher than the WHO standards in boys and girls respectively. At 3 months, the prevalence of stunting was 26.1% for boys and 13.3% for girls. Lastly, at 12 months, the BMI showed 10% overweight and 19% obesity. Conclusion: Breastfeeding associated with an early introduction of infant formulas increases the risk of malnutrition of the young infant. We advise to avoid it and recommend an exclusive breastfeeding.

关键词： Infant Exclusive Breastfeeding Infant Formulas Growth WHO Standards Cote d’Ivoire

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Etiological and Evolutionary Profile of the Child’s Pericarditis in Tropical Environments

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Open Journal of Pediatrics 2017年第3期7卷 164-177页

作者： Richard Azagoh-Kouadio Jacob Slanziahuelie Enoh jean-jacques yao atteby Line Guei Couitchere Lassina Cisse Yves N’da Kouakou N’goran Kouadio Euloge Kramoh Oulai Soumahoro Paediatric Ward of University and Teaching Hospital of Treichville AbidjanCote d’Ivoire Institute of Cardiology of Abidjan(ICA) AbidjanCote d’Ivoire

Background: Liquid pericarditis is a frequent cause of hospitalization in developing countries. Objective: of this study was to describe the etiological and evolutionary aspects of fluid pericarditis in pediatric cardiology at ICA. Methods: This was a retrospective study of 42 cases of fluid pericarditis diagnosed among 202 children hospitalized over a five-year period (1st January 2009 to 31st December 2014). All patients with pericardial effusion were included in the study. Results: Prevalence was estimated at 20.8% of hospitalizations, sex ratio was 1.1 with a female predominance (52%) and the mean age at 9.2 years (11 days to 15 years). The etiologic varieties identified were: tuberculosis 22 cases, 52%, rheumatic pericarditis 6 cases or 14.3%, chronic parietal endocarditis 5 cases (11.9%), bacterial pericarditis with trivial germ 3 cases (7.1% 3 cases (7.1%), post-surgery syndrome 2 cases (4.8%), umbilical post-catheterization 1 case (2.4%). HIV serology was positive in 11.9% of cases. The progression was favorable in 55% of the cases with 10% of deaths. Conclusion: Fluid pericarditis in children is a severe condition that is clearly on the rise today, especially in immunocompromised patients. Optimal management of fluid pericarditis in children is the best guarantee to avoid short-term tamponade and in the medium term constriction.

关键词： Pericarditis Etiology Evolution Children Tropical Diseases

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First Case of Liver Glycogen Documented in the Pediatric Ward of the University Hospital of Treichville (Cote D’Ivoire)

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Open Journal of Pediatrics 2017年第2期7卷 72-76页

作者： jean-jacques yao atteby Lassina Cissé Jacob Enoh Kouadio Richard Azagoh Germaine Niamké Daouda Koné Joseph Ouattara Evelyne Kouadio Beugre Martine Niangué Soumahoro Mathurin Oulai Joseph Andoh Pediatric Ward Teaching Hospital Center of Treichville Abidjan C&ocirc te d’Ivoire

The authors report a case of hepatic glycogen storage diseases type III (Cori-Forbes disease) of a Métis 3-year-old girl born and resident in C?te d'Ivoire. The discovery of this disease was made at the age of 2 years in the diagnosis of abdominal mass in a child subject to frequent hypoglycemia. The management currently consists of a diet enriched with glucose and maltose dextrin. We note in our case, a failure to thrive despite the persistent support.

关键词： Hepatic Glycogenosis Metabolic Disease Child

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Experimental and Statistical Analysis of Fatigue Behavior in Zr-based Bulk Metallic Glass

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稀有金属材料与工程 2024年第11期53卷 3010-3016页

作者： yao Zhifeng Qiao Jichao Pelletier jean-Marc yao yao School of Civil Engineering Xi'an University of Architecture&TechnologyXi'an 710055China Dongguan Sanhang Innovation Institute Dongguan 523808China School of Mechanics Civil Engineering and ArchitectureNorthwestern Polytechnical UniversityXi'an 710072China Institut National des Sciences Appliquées de Lyon Universitéde LyonLyon F-69621France School of Materials and Chemical Engineering Xi'an Technological UniversityXi'an710021China

Three-point bending fatigue experiments were conducted on a typical Zr-based bulk metallic glass(BMG)at ambient temperature to investigate the fatigue behavior under cyclic loading *** show that the stress amplitude-cycles to failure(S-N)curve of the Zr-based BMG is determined,and the fatigue endurance limit is 442 MPa(stress amplitude).To evaluate the probability-stress amplitude-cycles to failure(P-S-N)curve,an estimation method based on maximum likelihood was proposed,which relies on statistical principles to estimate the fatigue life of the material and allows for a reduction in the number of samples required,offering a cost-effective and efficient alternative to traditional testing *** experimental results align with the American Society for Testing and Materials(ASTM)standard,indicating the reliability and accuracy of this estimation method in evaluating the fatigue behavior of Zr-based BMG.

关键词： bulk metallic glass P-S-N curve fatigue test statistical analysis

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Antimony-based intermetallic compounds for lithium-ion and sodium-ion batteries:synthesis,construction and application

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Rare Metals 2017年第5期36卷 321-338页

作者： Wen Luo jean-jacques Gaumet Li-Qiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Laboratory of Chemistry and Physics:Multiscale Approach to Complex Environments(LCP-A2MC) University of LorraineMetz 57070France Department of Chemistry University of CaliforniaBerkeleyCalifornia 94720USA

The development of alternative electrode materials with high energy densities and power densities for batteries has been actively pursued to satisfy the power demands for electronic devices and hybrid electric vehicles. Recently, antimony（Sb）-based intermetallic compounds have attracted considerable research interests as new candidate anode materials for high-performance lithium-ion batteries（LIBs） and sodium-ion batteries（SIBs） due to their high theoretical capacity and suitable operating voltage. However, these intermetallic systems undergo large volume change during charge and discharge processes, which prohibits them from practical application. The rational construction of advanced anode with unique structures has been proved to be an effective approach to enhance its electrochemical performance. This review highlights the recent progress in improving and understanding the electrochemical performances of various Sb-based intermetallic compound anodes. The developments of synthesis and construction of Sb-based intermetallic compounds are systematically summarized. The electrochemical performances of various Sb-based intermetallic compound anodes are compared in its typical applications（LIBs or SIBs）.

关键词： Antimony Intermetallic compound Alloy Anode Sodium-ion battery Lithium-ion battery

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Fractional order extremum seeking approach for maximum power point tracking of photovoltaic panels

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Frontiers in Energy 2015年第1期9卷 43-53页

作者： Ammar NECAIBIA Samir LADACI Abdelfatah CHAREF jean jacques LOISEAU Research Unit in Renewable Energies in the Saharan Medium CDEREPST URER-MS Adrar 01000 Algeria Department ofElectrical Engineering University of Skikda Skikda 21000 Algeria Department of Electronics Electrotechnics and Automatics NationalPolytechnic School of Constantine Constantine 25000 Algeria SP-LabLaboratory Department of Electronics University of Constantine 1Constantine 25000 Algeria SP-Lab Laboratory Department of Electronics University of Con-stantine 1 Constantine 25000 Algeria Research Institute in Communications and Cybernetics CNRS UMR6597 1 rue de la No~ 44321 Nantes France

Due to the high interest in renewable energy and diversity of research regarding photovoltaic （PV） array, a great research effort is focusing nowadays on solar power generation and its performance improvement under various weather conditions. In this paper, an integrated framework was proposed, which achieved both maximum power point tracking （MPPT） and minimum ripple signals. The proposed control scheme was based on extremum- seeking （ES） combined with fractional order systems （FOS）. This auto-tuning strategy was developed to maximize the PV panel output power through the regulation of the voltage input to the DC/DC converter in order to lead the PV system steady-state to a stable oscillation behavior around the maximum power point （MPP）. It is shown that fractional order operators can improve the plant dynamics with respect to time response and disturbance rejection. The effectiveness of the proposed controller scheme is illustrated with simulations using measured solar radiation data.

关键词： extremum seeking (ES) fractional ordercontrol (FOC) fractional calculus photovoltaic (PV)

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Insight on Viscoelasticiy of Ti16.7Zr16.7Hf16.7Cu16.7Ni16.7Be16.7 High Entropy Bulk Metallic Glass

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Journal of Iron and Steel Research International 2016年第1期23卷 19-23页

作者： Ji-chao QIAO jean-marc PELLETIER Ning LI yao yao School of Mechanics Civil Engineering and ArchitectureNorthwestern Polytechnical UniversityXi'an 710072ShaanxiChina Universite de Lyon MATEISUMR CNRS5510Bat.B.PascalINSA-LyonF-69621 Villeurbanne cedexFrance Department of Materials Science and Engineering State Key Laboratory for Materials Processing and Die&Mould TechnologyHuazhong University of Science and TechnologyWuhan 430074HuheiChina

High entropy bulk metallic glasses show promising mechanical and physical *** mechanical properties of Ti_（16.7）Zr_（16.7）Hf_（16.7）Cu_（16.7）Ni_（16.7）Be_（16.7）high entropy bulk metallic glass were investigated by mechanical spectroscopy（or called dynamic mechanical analysis）.The main（α）relaxation was observed in the framework of the loss modulus G″,which is related to the dynamic glass transition behaviour for the glassy *** physical model point of view,dynamic mechanical properties of the Ti_（16.7）Zr_（16.7）Hf_（16.7）Cu_（16.7）Ni_（16.7）Be_（16.7）high entropy bulk metallic glass show good agreement compared with the quasi-point defects theory.

关键词： high entropy bulk metallic glass viscoelasticity mechanical spectroscopy quasi-point defect theory

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Modelling and mathematical results arising from ferromagnetic problems

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Science China Mathematics 2012年第5期55卷 1053-1067页

作者： DESCLOUX jean FLUECK Michel RAPPAZ jacques Department of Mathematics Ecole Polytechnique Fdrale de Lausanne (EPFL)Lausanne 1015Switzerland

Abstract In this article, we investigate the equations of magnetostaties for a configuration where a ferromagnetic material occupies a bounded domain and is surrounded by vacuum. Furthermore, the ferromagnetic law takes the form B=μ0μr（｜H｜）Hi i.e., the magnetizing field H and the magnetic induction B are collinear, but the relative permeability μr is allowed to depend on the modulus of H. We prove the well-posedness of the magnetostatic problem under suitable convexity assumptions, and the convergence of several iterative methods, both for the original problem set in the Beppo-Levi space W1（R3）, and for a finite-dimensional approximation. The theoretical results are illustrated by numerical examples, which capture the known physical phenomena.

关键词： ferromagnetism nonlinear elliptic problems finite element methods optimisation algorithms

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