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Impacts of Field Harvesting and Conservation Practices on the Physical Quality of Yam “Kponan” (Dioscorea cayenensis-rotundata) of Côte D’Ivoire

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Open Journal of Applied Sciences 2022年第12期12卷 1979-1994页

作者： yapo hypolithe kouadio Kouakou Nestor Kouassi Daouda Nimaga Yao Denis N’dri N’Guessan Georges Amani Laboratory of Food Biochemistry and Technology of Tropical Products Department of Food Science and Technology NANGUI ABROGOUA University Abidjan C&ocirc te D’Ivoire Swiss Center for Scientific Research in Cô te d’Ivoire (CSRS-CI) Abidjan C&ocirc te D’Ivoire Agronomic Forestry and Environmental Engineering Department University of Man Man C&ocirc te D’Ivoire

Yam “Kponan” (Dioscorea cayenensis-rotundata) is a popular staple food in Côte d’Ivoire. However, its rapid decay during conservation prevents regular supply of markets. The objective of this study was therefore to assess the impact of field cultivation and conservation practices on some physical quality parameters of “Kponan”. To this end, “Kponan” yam from three production areas (Bondoukou, Bouna, Kouassi-Kouassikro) was cultivated in each area. At maturity, physical parameters of yams at harvest and after 3 months of storage in field were analyzed. The results showed that injury was the most significant deterioration in yam harvest. The rate of injured yams was highest for hoe-harvested in Kouassi-Kouassikro area (16.67% - 22.22%) regardless of the origin of the cuttings. The main damage observed after the 3 months of storage was rots (22.86% - 60.00%) and weight loss (8.57% - 42.86%). However, yams stored in pits in Bouna zone had less damage (40% - 48.87%) than those stored under straw huts in Bondoukou locality (100%) and at shade under a tree in Kouassi-Kouassikro area (100%). In conclusion, the physical quality of “Kponan” in field is most affected by abusive use of herbicides during weeding and clearing, hoe harvesting and storage in the shade under a tree.

关键词： “Kponan” Yam Post-Harvest Loss Cultivation Practices Conservation Practices Physical Quality

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Comparative Study of Physico-Chemical Properties of Sediments from Two Sectors Close to Bandama in Northern Côte D’Ivoire (Sinematiali and Niakaramadougou)

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Journal of Geoscience and Environment Protection 2022年第2期10卷 33-46页

作者： Gnosseith Huberson Claver N’doufou Krogba Yves Nangah Koffi hypolithe kouadio Department of Geosciences University Peleforo Gon Coulibaly Korhogo C&#244 te d’Ivoire UFR Agroforestry Jean Lorougnon Guédé University Daloa C&#244 te D’Ivoire

This study aims to show the impact of successive floods on the spatial variation of the physico-chemical properties of sediments along the Bandama River in the localities of Sinématiali and Niakaramadougou because of their importance in the functioning of this ecosystem. Several samples were taken from both stations based on flood recurrence areas. The particle size analysis was done using the Robinson’s Pipette method. Traditional methods of sediment analysis have been used to measure organic carbon (O.C.), nitrogen (N), and other chemical properties including pH, organic matter (MO), and C/N ratio. Statistical analyzes were carried out to assess the differences between the physico-chemical parameters of the different sampling zones. In the area of niakamadougou, the lower values in MO were recorded in areas subject to more frequent flooding, thus close to the watercourse. In the Sinématiali area, lower M.O. values were recorded in sediments far from the stream. Total organic matter levels are higher in surface sediments with the lowest proportions of clay. The results show that the physico-chemical properties of the sediments vary at the level of the vertical distribution and according to their spatial distribution. Successive floods have a direct effect on the dynamics of the physico-chemical properties of sediments along the shore.

关键词： Organic Matter Granulometry Successive Flood Physico-Chemical Properties of Sediment

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Epidemiological, Diagnostic, Therapeutic, and Prognostic Profile of Non-Tuberculous Community-Acquired Purulent Pleurisy in Children at the Bouaké University Hospital Center, 2017-2021

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Advances in Infectious Diseases 2024年第1期14卷 220-232页

作者： yapo Thomas Aba Christian Yao Pacôme Monemo Richard Azagoh-kouadio Iburaima Akandji Noelle Gonné Jean-Marie Karidioula Vincent Achi Vincent kouadio Asse Department of Infectious and Tropical Diseases University Hospital of Bouaké Bouaké Ivory Coast University Alassane Ouattara of Bouake Bouake Ivory Coast Department of Pediatrics University Hospital of Bouaké Bouaké Ivory Coast Department of Bacteriology & Virology University Hospital of Bouake Bouaké Ivory Coast Department of Pediatrics University Hospital of Angré Abidjan Ivory Coast Department of Pneumology University Hospital of Bouake Bouaké Ivory Coast

Introduction: In Côte d’Ivoire, there is a scarcity of data on children’s purulent pleurisies. Objective: This study aims to elucidate the epidemiological, diagnostic, therapeutic, and evolutionary facets of non-tuberculous purulent pleurisies in pediatric patients. Methods: A retrospective analysis was conducted using the medical records of children aged one month to fifteen years with purulent pleurisies at Bouaké University Hospital Center from January 2017 to December 2021. Results: The study identified 124 cases of purulent pleurisies, constituting 18% of lower respiratory tract infections and 0.8% of all hospitalizations. The majority of these cases (69%) were in children between 1 and 24 months of age. Prominent symptoms included dyspnea (85.5%), O2 saturation below 95% in room air (76.6%), respiratory distress (68.5%), cutaneous-mucosal pallor (63.7%), and fever (43.5%). Radiological findings predominantly showed right-sided pleurisy (62.1%). The pleurisy was often extensive (78.2%), accompanied by pneumothorax (37.1%), alveolo-interstitial opacities (8.1% of cases), and abscess formations (1.6%). Pleural fluid cultures were positive in 46.9% of cases, with Staphylococcus aureus (75%, methi-S) identified among 32 bacteria. Initial antibiotic treatment was empirical, favoring oxacillin (53.2%) or amoxicillin-clavulanic acid (53.2%) in dual (42%) or triple therapy (33%) with gentamicin (64.1%) and/or metronidazole (21.8%). Treatments also included pleural drainage (68.5%) or repeated evacuation punctures (33.1%), and blood transfusion (39%). The mortality rate was 18.8%. Conclusion: Non-tuberculous purulent pleurisy remains a significant concern in pediatric hospitalizations at the CHU of Bouaké, marked by high mortality rates.

关键词： Community-Acquired Purulent Pleurisies Children Mortality Bouaké

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Epidemiological, Clinical, Therapeutic, Evolutionary and Prognostic Aspects of Children with COVID-19 in Bouaké(Côte d’Ivoire)

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Advances in Infectious Diseases 2022年第2期12卷 216-229页

作者： Kone Djakaridja Kadiane-Oussou Juliette Akanji Iburaima Alamun yapo Martine Tatiana Adou Leioh Romeo Karidioula Jean Marie Aba yapo Thomas Asse kouadio Vincent Kra Ouffoue Department of Infectious and Tropical Diseases University and Teaching Hospital of Bouaké Bouaké Ivory Coast Department of Pediatric University and Teaching Hospital of Bouaké Bouaké Ivory Coast

Context: Compared to adults, there are relatively few studies on pediatric COVID-19 due to the high rate of asymptomatic or paucisymptomatic forms. The aim of this study is to determine the epidemiological, clinical, therapeutic, evolutionary and prognostic aspects of COVID-19 infection in children. Patients and Methods: This was a prospective analytical study carried out from February 27, 2021 to January 27, 2022 at the COVID-19 Care Center of the Infectious and Tropical Diseases Department of the Bouaké University Teaching Hospital. The study population consisted of all children under the age of 16, seen in consultation and/or hospitalized with a positive COVID-19 RT-PCR. Data analysis was performed with Epi Info 7 software. The statistical tests used were the chi-square test and Fisher’s exact test depending on the conditions of validity with a significance threshold of p Results: Out of 955 patients received at the COVID-19 Care Center in Bouaké, there were 56 children (26 boys/30 girls), or, a prevalence of 5.86%. The mean age was 9.18 years ± 4.48 [extremes 3 months and 15 years]. Children over the age of 11 accounted for 48.21% of cases. They were contact cases in 35.71% and the contact person was the mother in 75% of cases. The main reasons for screening were cough (67.86%), fever (25%) and sneezing (21.43%). The pathological histories were asthma (83.33%), heart disease (33.33%) and sickle cell disease (16.67%). The medical examination revealed 6 cases of children in vital distress. The care consisted of home confinement for simple cases (89.29%) and hospitalization for cases presenting with vital distress (10.71%). The duration of confinement or hospitalization was between 10 and 15 days in 83.93% of cases. No cases of death were noted. The factors associated with the occurrence of symptomatic forms were age (p = 0.028), pathological history (p Conclusion: The proportion of pediatric cases of COVID-19 is low with a predominance during the season of harmatt

关键词： Epidemiology Coronavirus SARS-Cov2 Children Bouaké

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Inaugural Seizures Revealing COVID-19 in an Immunocompetent Infant at the University Teaching Hospital (UTH) of Bouaké

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Open Journal of Pediatrics 2022年第4期12卷 678-687页

作者： Djakaridja Kone Iburaima Alamun Akanji Martine Tatiana yapo Kokora Junior Gawa Juliette Kadiane-Oussou Leioh Romeo Adou Jean Marie Karidioula yapo Thomas Aba kouadio Vincent Asse Ouffoue Kra Department of Infectious and Tropical Diseases University Teaching Hospital of Bouaké Bouaké C&ocirc te d’Ivoire COVID-19 Care Center University Teaching Hospital of Bouaké Bouaké C&ocirc te d’Ivoire Department of Pediatrics University Teaching Hospital of Bouaké Bouaké C&ocirc te d’Ivoire Department of Bacteriology and Virology University Teaching Hospital of Bouaké Bouaké C&ocirc te d’Ivoire

Introduction: Children are likely to present with atypical and non-specific clinical manifestations of COVID-19, unlike adults. The aim of this observation is to identify the difficulties related to the diagnosis and the curative and preventive management of SARS-CoV-2 infection in children. Observation: This is a 15-month-old infant admitted for febrile seizures. The interrogation revealed signs evolving 48 hours before his admission marked by post-prandial vomiting, wet cough, hypotonia, food refusal, incessant crying, fever, and seizures. His antecedents can be summed up as an uneventful pre- and per-natal period, good eating habits, good psychomotor and staturo-ponderal development, and outdated vaccination. The physical and paraclinical examination made it possible to retain the diagnosis of severe pneumonia. The initial management consisted of oxygenation, hydroelectrolyte intake, antibiotic therapy, and neurosedation. The evolution 3 days later was marked by a worsening of the clinical features, and the hypothesis of infection with SARS-CoV-2 was raised. The nasopharyngeal swab for COVID-19 RT-PCR performed was positive. The infant was isolated in the intensive care unit, where he received oxygen therapy with a mask, enteral nutrition, antibiotic therapy, corticosteroid therapy, and adequate nursing. The evolution was favorable 48 hours later. In addition, his asymptomatic mother and 14-year-old brother were placed in isolation after a positive RT-PCR COVID-19 test. Her father who was very often away from home for professional reasons was negative for COVID-19 RT-PCR. They all four live in the same 3-room house. Conclusion: Childhood COVID-19 has many facets. Clinicians should think about it in the face of any infectious manifestation, in order to avoid delays in treatment and improve the prognosis.

关键词： COVID-19 Children Atypical Manifestations SARS-CoV-2 Bouaké

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Understanding the Local Carbon Fluxes Variations and Their Relationship to Climate Conditions in a Sub-Humid Savannah-Ecosystem during 2008-2015: Case of Lamto in Cote d’Ivoire

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Atmospheric and Climate Sciences 2020年第2期10卷 186-205页

作者： Dro Touré Tiemoko Fidèle Yoroba Adama Diawara Kouakou kouadio Benjamin Komenan Kouassi Assi Louis Martial yapo Laboratory of Atmosphere Physic and Mechanic Fluids (LAPA-MF) University Felix Houphouet-Boigny UFR SSMT Abidjan Côte d’Ivoire Geophysical Station of Lamto (GSL) N’Douci Côte d’Ivoire

The temporal variations of the Gross Primary Productivity (GPP), the Total Ecosystem Respiration (TER) and the Net Ecosystem Exchange (NEE), and their responses to meteorological conditions (e.g. temperature, radiative flux and precipitation) at Lamto, in wet savannah region across C?te d’Ivoire are analyzed using GFED-CASA and daily meteorological data recorded over the 2008-2015 period. The study shows the links between these carbon fluxes and climate variability at Lamto that is subject to high anthropogenic pressures and seasonal bushfires. The correlative statistics from multiple regression methods were used to assess the different relationships and show how they change in time. The results show important seasonal variability in the Gross Primary Productivity and the Total Ecosystem Respiration mainly associated with the changes in temperature and radiative flux. In addition, the statistical analysis suggests a high correlation between meteorological conditions and the GPP and TER. These climatic conditions may explain 83% and 79% of the variances of GPP and TER respectively. Moreover, the interannual variability of the Net Ecosystem Exchange indicates that around Lamto, in the subhumid savannah, the ecosystem behaves as a carbon sink similar to other West African ecosystems. On the other hand, there is no clear link between the NEE and temperature, radiative flux and precipitation. This lack of connection may suggest a limited response of the NEE interannual dynamics related to the changes in climatic features.

关键词： Carbon Flux Ecosystem Subhumid Savannah Lamto Climatic Conditions Linear Models

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Optimized Adsorption of Small and Medium Molecules by a Biosorbent Based on Hevea Hulls

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Journal of Materials Science and Chemical Engineering 2024年第9期12卷 69-83页

作者： Djedjess Essoh Jules César Meledje yapo Hermann Aristide Yapi David Léonce kouadio Djamatchè Paul Valéry Akesse Kolo Yeo Laboratoire des Sciences Physiques Fondamentales et appliques Ecole Normale Suprieure dAbidjan Abidjan Cte dIvoire Mathmatiques physiques Chimie Physique UFR Environnement Universit Jean Lorougnon Gud Daloa Cte dIvoire

In the context of the recovery of agricultural waste, many researches have focused on the preparation of adsorbents from natural waste from fruit trees, egg shells, palm waste or sawdust. This work aims to optimize the preparation of a biosorbent from rubber hulls by studying its ability to adsorb small and medium molecules. The influence of parameters such as drying temperature (X1), particle size (X2), stirring time (X3) and sodium hypochloride mass (X4) was studied. The results indicate that the model used for biosorbent optimization on methylene blue and iodine index is significant. In addition, this model has greater adsorption capabilities on small molecules than with large molecules. Statistical analysis of the data shows that temperature is the most influential factor in the adsorption of small molecules. On the other hand, particle size has a significant influence on the adsorption of large molecules. The optimum biosorbent preparation values are 1.0 for drying temperature (X1), −1.0 for biosorbent grain size (X2), 1.0 for stirring time (X3) and 1.0 for sodium hypochloride mass (X4).

关键词： Optimization Biosorbent Methylene Blue Index Iodine Index Rubber Hulls

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Projected Changes in the Climate Zoning of Côte d’Ivoire

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Atmospheric and Climate Sciences 2024年第1期14卷 62-84页

作者： Mamadou Diarrassouba Adama Diawara Assi Louis Martial yapo Benjamin Komenan Kouassi Fidèle Yoroba Kouakou kouadio Dro Touré Tiemoko Dianikoura Ibrahim Koné Arona Diedhiou Laboratory of Sciences Matter Environment and Solar Energy (LASMES) University Félix Houphou&#235t-Boigny Abidjan C&#244te d’Ivoire Geophysical Station of Lamto (GSL) N’douci C&#244te d’Ivoire Laboratory of Fundamental and Applied Physics University Nangui Abrogoua Abidjan C&#244te d’Ivoire Université Grenoble Alpes (UGA) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD) Centre National de Recherche Scientifique (CNRS) Institut National Polytechnique (INP) Grenoble France African Centre of Excellence on Climate Change Biodiversity and Sustainable Agriculture (ACE-CCBAD)/University Felix Houphou&#235t-Boigny (UFHB) Abidjan C&#244te d’Ivoire

This study assesses the projected changes in the climate zoning of Côte d’Ivoire using the hierarchical classification of principal components (HCPC) method applied to the daily precipitation data of an ensemble of 14 CORDEX-AFRICA simulations under RCP4.5 and RCP8.5 scenarios. The results indicate the existence of three climate zones in Côte d’Ivoire (the coastal, the centre and the north) over the historical period (1981-2005). Moreover, CORDEX simulations project an extension of the surface area of drier climatic zones while a reduction of wetter zones, associated with the appearance of an intermediate climate zone with surface area varying from 77,560 km2 to 134,960 km2 depending on the period and the scenario. These results highlight the potential impacts of climate change on the delimitation of the climate zones of Côte d’Ivoire under the greenhouse gas emission scenarios. Thus, there is a reduction in the surface areas suitable for the production of cash crops such as cocoa and coffee. This could hinder the country’s economy and development, mainly based on these cash crops.

关键词： Climate Projection Climate Zone Principal Component Analysis Hierarchical Classification on Principal Components CORDEX Côte d’Ivoire

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Treatment and Sequelae of Panfacial Fractures in the Maxillofacial Surgery and Stomatology Department of the Hospital University of Treichville-Abidjan (Cote d’Ivoire)

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Open Journal of Stomatology 2023年第12期13卷 433-441页

作者： Romaric Evrard Assi yapo Anoumon Marguerite Reine Evelyne Anzouan-Kacou Beatrice Tehoua Ettien Jean Francois Regis Koffi Behibro Franck-Olivier Manoussa Seguy Emmanuel kouadio Konan Department of Stomatology and Maxillofacial Surgery Treichville University Hospital Abidjan C&ocircte d’Ivoire Department of Surgery and Specialties Faculty of Medical Sciences Felix Houphouet-Boigny University Abidjan C&ocircte d’Ivoire

Introduction: The treatment of panfacial fractures is complex and constitutes a challenge for the maxillofacial surgeon, who, despite therapeutic progress, frequently suffers functional and aesthetic sequelae. This study aimed to describe the treatment and evaluate the functional and aesthetic sequelae of panfacial fractures in the stomatology and maxillofacial surgery department of the Treichville University Hospital. Materials and Methods: We conducted a retrospective study over a 6 years in the stomatology and maxillofacial surgery department of Treichville University Hospital. Forty-two patients with panfacial fractures were included in the study. Results: Forty-two patients were registered. The average time to osteosynthesis was 12.4 days. Nasotracheal intubation was used most often (88%), and in the majority of cases, mixed osteosynthesis combining a screwed plate and steel wire was performed (64.29%). The “Bottom-up and Outside-in” surgical sequence was the most commonly used (64.29%). All patients had at least one functional and/or cosmetic sequela after treatment. Functional sequelae were dominated by occlusal problems and aesthetic sequelae by nasal deformities. Discussion: Panfacial fractures are characterised by their complexity, presenting maxillo-facial surgeons with a therapeutic and evolutionary challenge. The quality of the initial, often multidisciplinary, management of panfacial fractures is an essential factor in both functional and aesthetic prognosis. Conclusion: The treatment of panfacial fractures, even if well managed, is sometimes a source of sequelae, requiring often complex secondary management.

关键词： Aesthetic Sequelae Functional Sequelae Management Panfacial Fracture Treatment

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Repair of Complex Post-Traumatic Facial Dislocations: Indications, Therapeutic Difficulties and Results at Treichville University Hospital, Abidjan, Cote d’Ivoire

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Open Journal of Stomatology 2022年第11期12卷 337-345页

作者： A. M. R. E. Anzouan-Kacou Christophe Konan Allah Romaric Evrard Assi yapo Eric Kouassi Zegbeh N’guessan kouadio Emmanuel Konan Department of Maxillofacial Surgery and Stomatology Treichville University Hospital Abidjan Cote d’Ivoire Department of Reconstructive and Aesthetic Plastic Surgery Hand Surgery and Burns Treichville University Hospital Abidjan Cote d’Ivoire Department of Stomatology and Maxillo-Facial Surgery University of Bouaké Health Centre Bouaké Cote d’Ivoire

Introduction: Complex post-traumatic facial disfigurements are caused by civilian or ballistic trauma. Their repercussions are functional, aesthetic and psychological. The initial emergency or secondary management of facial damage is difficult. The objective is to report, through the clinical observation of three patients, the results of the management of complex facial dislocations in a context of limited technical resources. Patients and methods: Three complex post-traumatic facial dislocations were managed between May 2006 and June 2017. Results: Primary treatment and secondary repair were established on a case-by-case basis. Local autoplasty was the indication of choice. Multidisciplinary management resulted in satisfactory functional and cosmetic outcomes. Two of the patients were lost to follow-up before the end of treatment. Discussion: The complete management of facial dislocations remains difficult and complex, in an extreme exercise situation. In an emergency, the priority is to save the life of the injured person. Several factors are involved in the therapeutic decision: the choice of the maxillofacial reconstruction technique, the availability of the technical platform, the financial capacity and the psychological state of the patient and his entourage. Sequential and multidisciplinary treatment gives satisfactory results in terms of morphology, function and aesthetics, despite the limited technical resources available. Psychological support is an essential complement for successful socio-professional and family reintegration.

关键词： Dislocation Face Complex Difficulties Treatment

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