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Assessment of Nitrates and Nitrites in Borehole Water from the Southern and the Northern Region of Côte d’Ivoire (West Africa)

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Open Journal of modern Hydrology 2024年第2期14卷 87-105页

作者： Jean Stéphane Claon kouassi Kouakou Serge Sérikipré Laurent Seka m’Bassidjé Arsène N’Guettia Kossonou Roland Traoré Aïcha Djamanallico Joseph Kouadio Kouakou Luc Analytical Sciences and Public Health Department University of Félix Houphou&#235t-Boigny Abidjan C&#244te d’Ivoire Water Quality Control and Analysis Laboratory (LACQUE) Office National de l’Eau Potable (ONEP) Abidjan C&#244te d’Ivoire Biology and Health Laboratory University of Félix Houphou&#235t-Boigny Abidjan C&#244te d’Ivoire Department of medical and Fundamental Biochemistry Institut Pasteur of C&#244te d’Ivoire Abidjan C&#244te d’Ivoire Laboratory of Environmental Sciences (LSE) University of Nangui Abrogoua Abidjan C&#244te d’Ivoire

This study aimed to evaluate the quality of water from village boreholes by measuring physicochemical parameters such as nitrates, nitrites, and total organic carbon (TOC). Forty-five (45) village pumps from the Southern (Basse Côte) and the Northern (Korhogo) region of Cte d’Ivoire (west Africa) were sampled. Physicochemical parameters such as temperature, pH, conductivity at 25˚C, and turbidity were determined in situ, while nitrite and nitrate were analyzed according to ISO 10304-1 (2007) standard and total organic carbon (TOC) by NF EN 1484 (1997) standard. The results showed that the borehole waters of the Basse Côte and Korhogo analyzed are acidic, with an average temperature of 27.51˚C ± 0.16˚C and 29.95˚C ± 0.51˚C respectively for the Basse Côte and Korhogo regions. The borehole waters of the Basse Côtedo not contain nitrites, while those of Korhogo have average nitrite contents of 0.32 mg/l. The average nitrate rate in the waters of the Basse Côte and Korhogo are 12.08 ± 2.11 mg/l and 11.03 ± 3.18 mg/l respectively. The average TOC concentration of the waters of the Basse Côte is 1.28 ± 0.32 mg/l and that of Korhogo is 0.56 ± 0.09 mg/L. The study showed that the borehole waters of the Basse Côte and Korhogo have average temperatures between 27.4˚C and 29.95˚C with a slightly acidic pH value and acceptable salinity. The TOC concentrations obtained at the different sampling points were all below the French standard (2 mg/L) except for certains pumps of the Basse Côte. The water samples from the Basse Côte were devoid of nitrite. On the other hand, those from Korhogo revealed the presence of nitrite. Also, the borehole waters of the regions of the Basse Côte and Korhogo contain relatively high nitrate contents, presumably due to anthropometric activity. Overall, our study on the quality of drinking water showed that the waters analyzed are in compliance with international standards and safe for consumption.

关键词： Drinking Water pH Turbidity TOC Nitrates Nitrites Health Effect

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Prevalence of Work-Aggravated Asthma among Bakery Workers in Abidjan (Cote d’Ivoire)

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Health 2024年第3期16卷 204-217页

作者： Loukou Leandre Konan Esme marie Laure Essis Brou michel kouassi marius Kedote Julius Fobil William Yavo Ossey Bernard Yapo Issaka Tiembre National Institute of Public Health Abidjan Cote d’Ivoire Interuniversity Doctoral Program Cotonou Benin medical Sciences Training and Research Unit Department of Public Health and Biostatistics Felix Houphouet Boigny University Abidjan C&#244te d’Ivoire Global Environmental Occupational Health (GEOHealth) Accra Ghana UFR of Pharmaceutical and Biological Sciences Department of Public Health Felix Houphou&#235t Boigny University Abidjan Cote d’Ivoire Nangui Abrogoua University Abidjan C&#244te d’Ivoire National Institute of Public Hygiene Abidjan C&#244te d’Ivoire

Introduction: Work-aggravated asthma is pre-existing or concomitant asthma whose symptoms are aggravated by the work environment. The aim of this study was to determine the prevalence of this pathology and its associated factors among bakery workers in Abidjan. materials and methods: This descriptive and analytical cross-sectional study was conducted over a period of four (4) months from 18 December 2019 to 18 April 2020. Two questionnaires were used, one on employees and the other on the indoor environment of bakeries. In addition, a spirometry test was performed on all bakery workers. Statistical analysis was performed using stata 15.1 software. Results: A total of 599 bakery employees, including bakers (59.73%), sales assistants/ cashiers (23.52%), cleaners (6.34%) and administrative staff (10.18%), were investigated. The mean age was 30.8 ± 8 years, with a sex ratio (m/F) = 2.2. Asthma symptoms were found in 95 (15.86%) employees, of whom 74 (77.9%) had work-related asthma and 11 (14.9%) had asthma aggravated by work. The factors associated with work-aggravated asthma were personal or family history of allergy or atopy [ORa = 3.75;CI95%: 1.56 - 8.93;p = 0.003], exposure to dust [ORa = 5.01;CI95%: 1.43 - 7.50;p = 0.011] and humidity level (60% - 70%) [ORa = 1.80;CI 95%: 0.99 - 3.28;p = 0.05]. Conclusion: Work-aggravated asthma is a reality in bakeries in Abidjan, with an estimated prevalence of 14.9%. Two of the three factors associated with this condition suggest a link with indoor air pollution. Combating air pollution in these establishments must therefore be a priority for the relevant authorities, in order to provide employees with a working environment that protects their health.

关键词： Work-Aggravated Asthma Occupational Asthma Work-Related Asthma Bakeries Abidjan Ivory Coast

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Osteoarticular Lesions of the Shoulder Girdle by Hippopotamus Bite: Highly Septic Lesion

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Open Journal of Orthopedics 2024年第2期14卷 114-121页

作者： Jr Pierre Germain Ochou Achié Jean Régis Akobe Yao Aboh Ganyn Robert Arnaud Assere Kouamé Jean-Eric kouassi Adelaïde Aya Natacha kouassi Ibrahim Soumahoro Zolopégué marcel Soro Sédi Loues De Randolphe Akpro Gbalé Yannick Blé Kouamé Innocent m’bra Loukou Blaise Yao Bada Juste Léopold NiaoréSery Koffi Léopold Krah michel Kodo Department of Orthopaedic and Traumatological Surgery Bouaké University Hospital Bouaké Ivory Coast Raoul Follereau Institute Manikro Centre Bouaké Ivory Coast

Hippopotamus bites are rare in medical consultations, despite several studies exposing their aggressive character. A case of a hippopotamus bite on the shoulder of a fisherman has been reported. In addition to the osteoarticular aspect representing a therapeutic problem, the infectious aspect was marked by sepsis, with a death in less than 48 hours. Based on this observation, a protocol for the initial management of large animal bites was submitted.

关键词： Bite Hippopotamus Septic Shock

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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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Honey Dressing of Cutaneous Wounds on Limbs in the Traumatology Orthopaedics Department of Bouaké University Hospital

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Open Journal of Orthopedics 2024年第9期14卷 411-420页

作者： Achié Jean-Régis Akobe Aya Adélaide Natacha kouassi Ibrahim Soumahoro Zolopégué marcel Soro Sedy Louess De Randolphe Akpro Bakary Traoré Almamy Kamate Axel Fabrice Essehin Yao Aboh Ganyn Robert Arnaud Assere Lanciné Kaba Kouamé Innocent m’bra Loukou Blaise Yao Bada Justin Léopold Niaoré Sery Koffi Léopold Krah michel Kodo Orthopaedics-Traumatology Department of the University Hospital of Bouak Bouak Ivory Coast Plastic and Reconstructive Surgery Department of the University Hospital of Bouak Bouak Ivory Coast

The study evaluated the effectiveness of honey dressings in healing recent skin wounds with soft tissue loss on limbs. Conducted over a year with 60 patients, results showed a significant reduction in wound size and early healing, with complete recovery on average within 29 days. The study supports honey as a viable wound treatment.

关键词： Healing Honey Limbs Loss of Substances

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Interest of Non-Invasive markers (APRI, FIB-4) for Assessing Hepatic Fibrosis in Patients with Chronic Viral Hepatitis B without Cytolysis and with Low Viral Replication

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Open Journal of Gastroenterology（肠胃病学期刊） 2024年第5期 192页

作者： mamadou Diakité kouassi Olivier Claver Koffi Amadou Koné Akoun Fabrice Aké Oury Diallo Ahmadou Stellart Jean m. Brou Anassi Jean-Baptiste Okon

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Assessment of Selenium Contamination in Sediments of the Aby and Tendo Lagoons in Côte d’Ivoire

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International Journal of Geosciences（地球科学国际期刊） 2024年第4期 334页

作者： Stéphane Jean Claon Kouakou Serge kouassi Kossonou Roland N’Guettia m’bassidjé ArsèneSeka Guei Jokebed Dakouo Allico Joseph Djaman Kouakou Luc Kouadio

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mercury Levels Assessment in the Population of Aby and Frambo Villages in the Vinicity of Aby Lagoon in Côte d’Ivoire (West Africa)

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Journal of Water Resource and Protection（水资源与保护） 2024年第3期 219页

作者： Stéphane Jean Claon Serge Kouakou kouassi Nina Laurette Ahouéfa Laurent Kipré Seri Arsène m’bassidjé Seka Joseph Allico Djaman Luc Kouakou Kouadio

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Assessment of Nitrates and Nitrites in Borehole Water from the Southern and the Northern Region of Côte d’Ivoire (West Africa)

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Open Journal of modern Hydrology（现代水文学期刊） 2024年第2期 87页

作者： Jean Stéphane Claon kouassi Kouakou Serge Sérikipré Laurent Seka m’Bassidjé Arsène N’Guettia Kossonou Roland Traoré Aïcha Djamanallico Joseph Kouadio Kouakou Luc

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Conceptual model of Aquifers in the Bedrock Zone of the marahouéWatershed (Centre-West of Ivory Coast)

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Journal of Geoscience and Environment Protection 2022年第7期10卷 229-256页

作者： kouassi Désiré Bouatrin Innocent kouassi Kouame Aristide Gountôh Douagui Kouamé Auguste kouassi Bi Tié Albert Goula Geosciences and Environment Laboratory Department of Environmental Sciences and Management Nangui University Abrogoua Abidjan Ivory Coast

marahoué watershed, located in the Center West of Côte d’Ivoire, has experienced significant population growth in recent decades. And a major economic boom linked to intense agricultural activity and the presence of certain industries. This population growth is also accompanied by seasonal water shortages. Hence it needs to better manage the basin’s groundwater, which is a permanent resource and more resistant than surface water to climatic hazards. The objective of this study is therefore to propose a conceptual model of hydrogeological flow for the sustainable exploitation of groundwater resources in the marahoué watershed. The establishment of the conceptual model was carried out in two stages. The first step consisted in defining the stratigraphic units. For this purpose, three units have been defined. These are the layer of alterite, the useful fissured horizon and the sound basement. The thickness of the layer of alterite varies from 0 to 80 m with an average of 26 m. As for the useful fissured horizon, its thickness is between 43 and 46.5 with an average of 45 m. In addition, the roof of the basement presents a slightly uneven morphology with a North-West, South-East dip and the altitudes are between 150 and 390 m. The second step corresponds to the phase of determining the hydrodynamic parameters. During this phase, the crack porosity, the transmissivity, the conductivity, the storage coefficient, the hydrological balance and the piezometric map were determined. Indeed, these parameters (the crack porosity, the transmissivity, the conductivity and the storage coefficient) confirm not only the heterogeneity of the medium but that the cracked horizon is sufficiently porous to be assimilated to an equivalent continuous medium during the simulation.

关键词： marahoué Watershed Conceptual model Ivory Coast

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