A5004383940- Child Nutrition and Water Access
- Global Maternal and Child Health
- Tuberculosis Research and Epidemiology
- Liquid Crystal Research Advancements
- Parasites and Host Interactions
- Pneumonia and Respiratory Infections
- Respiratory viral infections research
- Neonatal and Maternal Infections
- Infant Development and Preterm Care
- Hemoglobinopathies and Related Disorders
- Neonatal and fetal brain pathology
- Maternal and fetal healthcare
- Pregnancy and preeclampsia studies
- Gestational Diabetes Research and Management
- Malaria Research and Control
- Clinical Nutrition and Gastroenterology
- HIV/AIDS Impact and Responses
- Mosquito-borne diseases and control
- Bacterial Infections and Vaccines
- Nosocomial Infections in ICU
- Pleural and Pulmonary Diseases
- Phase-change materials and chalcogenides
- Photochromic and Fluorescence Chemistry
- Venomous Animal Envenomation and Studies
- Child Nutrition and Feeding Issues
Université Abdou Moumouni
2016-2024
National Hospital Niamey
2015-2024
Université des Sciences de la Santé
2022
Laboratoire de physique de la matière condensée
1989-1992
Université Côte d'Azur
1990-1992
Centre National de la Recherche Scientifique
1990-1992
Chimie de la Matière Condensée de Paris
1989
Des phases bleues sont observees pour la premiere fois dans un copolymere a chaines laterales de faible masse moleculaire. Leurs caracteristiques etudiees, en fonction du taux copolymerisation des groupements chiraux. proprietes comme disparition progressive differentes avec l'accroissement pas cholesterique, l'orientation et symetrie cristaux observes, semblent comparables celles qui decrites petites molecules chirales. Par contre, comportement original est obtenu au voisinage transition BP...
Abstract The blend of an industrial cooligomer side chain cholesteric material with a polar small molecule liquid crystal reversed chirality induces low temperature smectic A phase [1]. We present here the change in textural characteristics at SA-Ch transition observed by optical microscopy between untreated glass slides: particular fingers, different from those recently described [2], are obtained for slow increase temperature, starting unperturbed spontaneous homeotropic SA domain. These...
Abstract Blue phases are easily observed over an extended temperature range with oligomer, side chain, cholesteric copolysiloxane. The use of four different samples variable copolymerisations allows the observation progressive disappearance blue when pitch increases. shorter sample shows well known sequence three is decreased from isotropic phase. Some characteristic coloured platelets supercooled below glass transition this material and a simple microtome resin inclusion technique these...
Streptococcus pneumonia is a leading cause of bacterial pneumonia, meningitis and sepsis in children, pneumococcal carriage an important source horizontal spread these pathogens within the community.A questionnaire was addressed to parents for collection sociodemographic medical information. Nasopharyngeal swabbing processed using molecular method. We used logistic regression models examine independent associations between potential risk factors. All with p-value < 0.25 bivariate analyses...
Abstract Archimedian spiral wave instabilities have been discovered in chemical [1] and biological systems [2]. We present here the first example of such an instability pattern, encountered a physical medium [3]. This is directly observed by polarized optical microscopy, on positive dielectric anisotropy smectic A sample with homeotropic organization between parallel glass slides. The arm probably constituted 180° Bloch wall, separating indistinguishable domains, incorporating progressively...
While there have been very few fatal cases, SARS-CoV-2 has reported in paediatric patients. This study aims to describe a case of COVID-19 child with severe acute malnutrition. The eight-month-old presented fever, diarrhoea, and difficulty breathing. mother the had fever shortness breath four weeks before she died. Physical examination revealed lethargy, dehydration, weight loss 5 kg at height 78 cm tall. weight-for-height index was less than three Z-scores, which corresponds pulmonary...
Congenital malaria is a serious and common infection in tropical Africa. It has multiple consequences on the newborn mother.The objective of this study to calculate prevalence congenital malaria, describe its clinical signs, analyze associated factors. Methodology. cross-sectional prospective study, conducted at Issaka Gazobi Maternity Niamey, from June 1 November 30, 2017. The diagnosis was made by microscopy thick thin blood smear mother, newborn, umbilical cord.Two hundred forty-nine...
malaria during pregnancy is a major public health problem in Africa. It can have serious consequences for mother, fetus and newborn. associated with high maternal infant mortality rate. The purpose of our study was to determine the prevalence plasmodium infection pregnant women, describe their clinical signs potential complications, analyze factors, propose preventive measures.we conducted cross-sectional at Issaka Gazobi Maternity Ward (MIG), Niamey, from 1 June 30 November 2017. Diagnosis...
Pneumonia is the major cause of mortality in children under five years. A total 751 aged 1-59 months admitted for acute respiratory infection were included this study. Pneumococcal serum IgG antibody was determined by ELISA. Carriage Streptococcus pneumoniae molecular analyses nasopharyngeal swabbings, and rapid urinary diagnostic test Binax NOW®Sp used detection pneumococcal antigen urine. 224 (29.8%) had vaccination record books, among them, 186 (83%) vaccinated with 23-Valent...
Introduction: Infections are significant causes of mortality in sickle cell children resource-limited countries. This study aimed to determine the clinical profile and bacterial ecology infections with sickle-cell disease two referral hospitals Niamey. Patients methods: A retrospective descriptive was conducted from January 2018 July 2020 All aged one (1) 15 years admitted for suspected infection, including at least culture, were studied. Bacteriological analysis performed using appropriate...
Introduction : L’infection néonatale bactérienne précoce (INBP) demeure une des principales causes évitables de mortalité à travers le monde. C’est urgence médicale et constitue un problème santé publique. L’objectif ce travail était d’étudier les aspects diagnostique, thérapeutique pronostique INBP. Patients méthodes Il s’agissait d’une étude prospective descriptive analytique qui s’était déroulée la maternité Issaka Gazobi Niamey du 1er Avril 2015 au 31 Mai 2016 ayant inclus tous...
Introduction.L'incidence de la pleurésie purulente est en augmentation dans le monde.En plus pronostic maladie reste toujours un chalenge.L'objectif principal notre étude d'analyser les caractéristiques épidémiologiques et l'enfant.Méthodes.Nous avons mené une prospective janvier 2012 à juin 2014 recensant cas chez enfants 0 15 ans.Résultats.La représente 1,04% des maladies l'enfant.L'âge moyen était 5,77±4,43 ans avec sex ration 1. Les nourrissons étaient affectés (36%).70% patients...
Abstract We have shown recently that a side chain chiral industrial co-oligosiloxane exhibits an original blue phase behaviour at the cholesteric-isotropic transition [1–3]. This same material has been studied dissolved in various polar small molecule nematic or cholesteric liquid crystals and it was these associations are responsible for large induced smectic domain. These systems allow adjustment of A-cholesteric temperature from 180°C to room temperature, depending on nature concentration...
Methods Preliminary prospective cross-sectional study, conducted over a period of 5 months and 10 days with an observation the types medical waste analysis knowledge practices 125 officers from three clinics in Niger. In total there were identified interviewed Maternity Hospital Issaka Gazobi National Niamey Lamorde: 40 officials commonly called ‘major’ service, 61 laborers, 21 operating assistants [BH1], 3 hygiene sanitation technicians.