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Gross Alpha and Beta Activities and Related Lifetime Risks Assessment Due to Ingestion of Drinking Water from Different Sources in the District of Abidjan, Cote d’Ivoire

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World Journal of Nuclear Science and Technology 2024年第1期14卷 86-96页

作者： Ponaho Claude Kezo issa konate Dabo Salif Ignace Agba Laboratory of Environmental Science and Technology University Jean Lorougnon Guede (UJLoG) Daloa C&#244te d’Ivoire Laboratory of Environmental and Solar Energy Sciences University Felix Houphouet Boigny (UFHB) Abidjan C&#244te d’Ivoire Laboratory of Fundamental and Applied Physics University Nangui Abrogoua (UNA) Abidjan C&#244te d’Ivoire

Drinking good quality water is essential for better health. It is therefore essential to assess the radiological quality of all water consumed in the District of Abidjan in order to prevent related hazards. Thus, the objective of this study was to assess the risk of cancer due to the ingestion of alpha and beta emitting radionuclides in the different types of water consumed in the region. A total of 63 water samples with 43 tap water samples, 5 bottled mineral water and 15 sachet water samples was collected and taken to GAEC laboratory for analysis. The low background Gas-less Automatic Alpha/Beta counting system (Canberra iMaticTM) was used to determine alpha and beta activity concentrations. Activity concentrations of both gross alpha and gross beta obtained in water sample were respectively lower than the WHO recommended limits of 0.1 Bq/l and 1 Bq/l. Also, the annual effective dose and total equivalent effective dose found in mineral bottled water samples were higher than in other types of water. The assessment of radiological lifetime risk has shown values of cancer risk due to ingestion alpha and beta emitters lower than recommended limit. These results indicate that there is no health hazard associated to consumption of water in the District of Abidjan.

关键词： Gross Alpha and Beta Activities Drinking Water Effective Dose Radiological Lifetime Risks

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Public Effective Dose Assessment Using Gross Alpha and Beta Radioactivity Levels of Tap Drinking Water in the District of Abidjan, Cote d’Ivoire

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Journal of Environmental Protection 2023年第3期14卷 127-138页

作者： Ponaho Claude Kezo issa konate Tekpo Paul Dali Laboratory of Environmental Science and Technology Université Jean Lorougnon Guédé Daloa Côte d’Ivoire Laboratory of Environmental and Solar Energy Sciences Université Félix Houphouët-Boigny Abidjan Côte d’Ivoire

In order to assess public effective dose due to gross alpha and beta in water, 43 tap water samples were collected from different areas in the District of Abidjan. Using the low background Gas-less Automatic Alpha/Beta counting system (Canberra iMaticTM) for analysis, the gross alpha and beta concentrations found varied from 0.001 ± 0.002 to 0.063 ± 0.050 Bq/l with an average of 0.013 ± 0.012 Bq/l and from 0.067 ± 0.080 to 0.320 ± 0.120 Bq/l with an average of 0.174 ± 0.076 Bq/l, respectively in samples. The public effective dose assessment showed values of dose to ingestion of alpha and beta emitter radionuclides lower than the recommended value of dose for drinking water 0.1 mSv/y, except in 30% of the samples. These results show the need for additional studies to be conducted in order to clarify the hazardousness of these water samples. However, this study still remains important because it has provided necessary data for future tap water quality monitoring studies in the District of Abidjan.

关键词： Gross Alpha and Beta Concentration Tap Water Effective Dose District of Abidjan

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Risk Factors and Syndromic Management of Sexually Transmitted Infections among Sex Workers in the Kadiolo Circle

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Advances in Infectious Diseases 2021年第2期11卷 95-103页

作者： Diarra Aminta Cissoko Yacouba konate issa Matchim Kouam Clemence Samake Dramane Traore Madou Daou Sounkalo Support and Counseling Care Unit for People Living with HIV/AIDS Dermatology Hospital Bamako Mali Infectious and Tropical Diseases Department of the University Hospital of Point G Bamako Mali Mopti Regional Hospital Mopti Mali Sikasso Regional Hospital Sikasso Mali

Sexually transmitted infections constitute a gateway for the human immunodeficiency virus by the presence of ulcerations and local inflammatory manifestations, thus increasing the risk of transmission. The aim of the study was to assess the sexual behavior and syndromic management of sexual infections among female sex workers in the Kadiolo circle. Material and method: This was a descriptive cross-sectional study carried out in the Kadiolo circle from January 1 to December 31, 2014. It focused on clandestine or posted sex workers, aged 15 and over. Results: We collected 465 sex workers aged 15 and 49, aged 26.6 on average and from Ivory Coast 52%, Nigeria 26.2% and Mali 9.7%. Educational attainment was higher with 2.4%. Posted sex workers represented 92.5% and housed in brothels with a stay of 6 months with 53.3%. They were single with 70.8% of cases and about 72.9% lived alone and without a spouse. The age at first sexual intercourse was between 15 - 19 years with 76.6% of cases. The number of first commercial sex was between 15 - 19 years (26%) and 20 - 24 years (45.8%). Usual condom use with regular sex partners was 22.1%. Condom use was almost compulsory at 89.7% with occasional clients or non-regular sexual partners. The average number of clients per day was five (5). The major reason for consultation was vaginal discharge 16.4% followed by abdominal pain. The human immunodeficiency virus test was not compulsory and only 86 workers or 18.5% accepted with a positive result of 11 people or 12.8% of cases. Conclusion: Sexually transmitted infections are common especially as they affect young people.

关键词： Sex Worker Kadiolo Infectious Disease

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Diagnostic Reference Level in Frontal Chest X-Ray in Western Côte d’Ivoire

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World Journal of Nuclear Science and Technology 2019年第4期9卷 147-158页

作者： issa konate George A. Monnehan Douo B. L. H. Gogon Tekpo P. A. Dali Aka A. Koua Koudou Djagouri Laboratory of Nuclear Physics and Radiation Protection Training and Research Unit Sciences of Matter and Technology Félix Houphouet-Boigny University Abidjan Côte d’Ivoire Radiation Protection and Nuclear Security Authority Abidjan Côte d’Ivoire High Normal School Abidjan Côte d’Ivoire

Our study aims to determine diagnostic reference levels (DRL) for chest front examination in postero anterior (PA) for optimizing patient entrance surface dose (ESD) and dose-area product (DAP) of patients in west of Côte d’Ivoire. 90 patients from three hospitals undergoing conventional radiology were considered. The ESD and DAP for each patient were obtained during chest radiography (PA) examination. The measurements were performed with the device call Dose-Area Product-meter (DAP-meter) with brand Diamentor M4-KDK, type 11017. The DRL were obtained in applying the 75th percentile statistical method to the obtained ESD and DAP. The obtained DRL in ESD for chest radiography for all rooms is 0.40 mGy and in DAP is 54.85 cGy·cm2. Our DRL for ESD is higher than those obtained in Abidjan District and in other countries like UK and Cameroon. Our DRL for DAP is higher than those from Abidjan and all other countries for which a similar study was made. The comparison of these values to those from Abidjan and other countries, shows us that radiology technicians can make efforts to choose radiological parameters to reduce ESD. They must use convenable the X-rays tube to reduce DAP by reducing the patient exposure surface.

关键词： Conventional Radiology Entrance Surface-Dose Dose-Area-Product Dose-Area Product-Meter Diagnostic Reference Levels

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Retroperitoneal Teratoma in Infants: About a Case in the Medical Imaging Department of the Mother and Child Hospital Center “Luxembourg”

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Open Journal of Medical Imaging 2022年第2期12卷 73-81页

作者： issa Cisse Mamoudou Camara Chomba Abdoulaye Kone Toumin Camara Diakaridia Traore Mahamane Mariko Souleymane Sanogo Moussa konate Siaka Sidibe Medical Imaging Department CH Mother-Child “Luxembourg” Bamako Mali Medical Imaging Department CHU Point G Bamako Mali Internal Medicine Department Siguiri Prefectural Hospital Siguiri Guinea Department of Pediatric Surgery CH Mother-Child “Luxembourg” Bamako Mali

Introduction: Retroperitoneal teratoma is a rare congenital tumour, representing only 1% to 10% of primary retroperitoneal tumors in children, far behind ovarian and testicular locations. There is a clear female predominance with a sex ratio of 3.4/1. The purpose of this study is to review the clinical manifestations, the mode of revelation of retroperitoneal teratoma, the diagnostic means and the anatomopathologic aspect of retroperitoneal teratoma, then to show the contribution and the limits of the various imaging examinations: ultrasound, CT and MRI in the diagnosis of retroperitoneal teratoma. Observation: We report the case of a mature retroperitoneal teratoma discovered in a 10-month-old male infant. The diagnosis evoked by ultrasound and abdominal CT was confirmed by histological study of the excised specimen. The postoperative evolution after 3 months was favorable in particular with no signs of recurrence. Conclusion: Retroperitoneal teratoma is a rare congenital tumour. The complete imaging assessment including ultrasound and computed tomography is necessary preoperatively in order to make the diagnosis and to clearly determine the relationship with the various organs. The anatomopathological study confirms the diagnosis of retroperitoneal teratoma. Tumor excision must be radical to avoid recurrence, which readily occurs in a malignant form. Even if the tumor appears benign, postoperative monitoring based on clinical, biological and radiological examination is essential.

关键词： Tumours Mature Retroperitoneal Teratoma Child

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Larynx Cancer: Review of 11 Years of Activity in the ENT and Head and Neck Surgery Department of University Hospital Gabriel Toure, Bamako

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International Journal of Otolaryngology and Head & Neck Surgery 2022年第4期11卷 193-201页

作者： Diarra Kassim konate Nfaly Sanogo Harouna Katile Oumar Dembele Yaya Soumaoro Siaka Guindo Boubacary Cisse Naoma Coulibaly Kalifa Kone Fatogoma issa Doumbia Kadidiatou Keita Mohamed Amadou ENT and Head and Neck Surgery Department Gabriel Toure Bamako Mali ENT and Head and Neck Surgery Department Reference Health Kalanbancoro Bamako Mali Army Polyclinic Kati Bamako Mali

Objectives: To study the epidemio-clinical, therapeutic and evolutionary aspects of laryngeal cancers in the ENT department of the University Hospital Gabriel Toure. Materials and Methods: This was a descriptive, retrospective study over a period of 11 years from January 2008 to December 2019. We made an exhaustive sampling of all cases of malignant tumors of the larynx in the ENT department of the University Hospital Gabriel TOURE. Variables studied: frequency, sex, age, clinic, imaging, histology, TNM classification, treatment received and follow-up time was 1 to 11 years. Result: we noted a male predominance (44 men/13 women). The average age was 52.23 years, with extremes of 32 and 74 years. Smoking was reported by 40 patients (72% of cases). The average in pack-years is 29.32 with extremes of 4 to 60 packs/ year. Alcoholism was reported by 6 patients (9% of cases). Squamous cell carcinoma was the predominant histological type (100%);extension to 2 or 3 floors was objectified in 69% of cases. Complementary radiotherapy in 26 patients after total laryngectomy. Chemotherapy was done in a neoadjuvant situation in 36 cases. Overall survival was: 52.6% at 1 year, 33.3% at 3 years;26.3% at 5 years and 12.28% at 11 years. Conclusion: Most often, late diagnosis is due to the absence of a national strategy and the underestimation of the first symptoms. Surgery coupled with radiotherapy is the treatment of choice.

关键词： Laryngeal Cancer Histology Treatment Follow-Up

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Thrombosis of the Transverse Sinus: About a Clinical Observation and Review of the Literature

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International Journal of Otolaryngology and Head & Neck Surgery 2023年第3期12卷 180-186页

作者： Harouna Sanogo Kassim Diarra Nfaly konate Mohamed Saydi Ag Med Elmehdi Elansari Drissa Kaloga Bagayogo Kalifa Coulibaly Dembele Yaya Kone Fatogoma issa Boubacary Guindo Siaka Soumaoro Doumbia Kadidiatou Mohamed Amadou Keita Reference Health Center Kalaban Koro Bamako Mali ENT Head and Neck Surgery Department University Hospital Gabriel Toure Bamako Mali Reference Health Center Common VI Bamako Mali Department of Anesthetist Resuscitation University Hospital Mother-Child Luxembourg Bamako Mali

Cerebral venous thrombosis has an unfavorable prognosis. It is a rather rare pathology concerning 3 to 5 cases per million inhabitants. The clinical symptomatology also varies according to the topography of the venous thrombosis and, in some cases, the CVT can have an unusual presentation. Progress and accessibility of non-invasive imaging currently allow early diagnosis of CVT. Brain MRI is the reference method for the diagnosis of CVT. We report a case of transverse sinus thrombosis in a 32-year-old male patient who consulted for headaches through which we want to study the etiological, clinical, paraclinical, therapeutic aspects as well as the evolutionary profile. The clinical history dates back to 2 weeks ago with frontal headaches radiating to the occipital region, throbbing of severe intensity, progressive onset and permanent evolution associated with right unilateral anterior purulent rhinorrhea. He had no nasal obstruction, epistaxis, hearing loss or other otological symptoms;no neurological deficit or notion of head trauma. Cerebral and maxillofacial computed tomography showed right maxillary sinusitis and right transverse sinus thrombosis. We carried out medical treatment based on antibiotics and analgesics without the use of anticoagulants. The evolution was favorable after four weeks of treatment. Conclusion: Transverse sinus thrombosis has a non-specific and heterogeneous clinical presentation. Headaches are the first sign. MRI and CT can help establish the diagnosis. The treatment is both etiological and symptomatic.

关键词： Transverse Sinus Thrombosis Headache Non-Surgical Treatment

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Analytical Load Balancing Model in Distributed Open Flow Controller System

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Engineering（科研） 2018年第12期10卷 863-875页

作者： Traore issa Zamble Raoul Adama konate Joel Christian Adepo Bernard Cousin Asseu Olivier Felix Houphouet-Boigny University AbidjanCote d’Ivoire African Higher School of ICT Abidjan AbidjanCote d’Ivoire National Polytechnic Institute Felix Houphouet-Boigny YamoussoukroCote d’Ivoire Virtual University of Cote d’Ivoire AbidjanCote d’Ivoire Research Institute of Computer Science and Random Systems University of Rennes 1RennesFrance

The Software Defined Network (SDN) is a concept based on a decoupling between the control plan and the data plan of a network. Thus, the network becomes programmable and can be coupled to the business applications of the users. The study that is discussed in this article looks at load planning and balancing in distributed controllers. To do this, a model and theoretical methods of performance evaluation related to appropriate software tools, to predict and control the quality of service offered to users is exposed. This paper exposed also a distributed architecture of controllers and then a module based on an adaptive load balancing algorithm that is fault tolerant and fluctuates controller loads. The experiments show a significant gain in efficiency of our solution.

关键词： Open Flow Load Balancing Decision Distributed Software Defined Network Analysis Architecture

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Temperature Effect on Light Concentration Silicon Solar Cell’s Operating Point and Conversion Efficiency

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Smart Grid and Renewable Energy 2020年第5期11卷 61-72页

作者： Mahamadi Savadogo Boubacar Soro Ramatou konate Idrissa Sourabié Martial Zoungrana issa Zerbo Dieudonné Joseph Bathiebo Laboratory of Thermal and Renewable Energies Department of Physics Unit of Training and Research in Pure and Applied Sci-ences University Joseph KI-ZERBO Ouagadougou Burkina Faso

It is well known that temperature acts negatively on practically all the parameters of photovoltaic solar cells. Also, the solar cells which are subjected to particularly very high temperatures are the light concentration solar cells and are used in light concentration photovoltaic systems (CPV). In fact, the significant heating of these solar cells is due to the concentration of the solar flux which arrives on them. Light concentration solar cells appear as solar cells under strong influences of heating and temperature. It is therefore necessary to take into account temperature effect on light concentration solar cells performances in order to obtain realistic results. This one-dimensional study of a crystalline silicon solar cell under light concentration takes into account electrons concentration gradient electric field in the determination of the continuity equation of minority carriers in the base. To determine excess minority carrier’s density, the effects of temperature on the diffusion and mobility of electrons and holes, on the intrinsic concentration of electrons, on carrier’s generation rate as well as on width of band gap have also been taken into account. The results show that an increase of temperature improves diffusion parameters and leads to an increase of the short-circuit photocurrent density. However, an increase of temperature leads to a significant decrease in open-circuit photovoltage, maximum electric power and conversion efficiency. The results also show that the operating point and the maximum power point (MPP) moves to the open circuit when the cell temperature increases.

关键词： Temperature Electric Power Conversion Efficiency Light Concentration Maximum Power Point Junction Dynamic Velocity

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Postoperative Occlusion of the Small Bowel with Flanges and/or Adhesions in General Surgery of Kati BSS CHU

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Surgical Science 2018年第9期9卷 293-299页

作者： Abdoulaye Diarra Koniba Keita Amadou Traore Assitan Koné issa Traore Idrissa Tounkara Abdoulaye Kante Fadima K.Tall Daouda Diallo Moustaph issa Magané Madiassa konate Aboubacar Koné Deborah Sanra Sanogo Ismael Konare Alhassane Traoré General Surgery Department KatiMali Anesthesia Service and Resuscitation Department KatiMali Gastroenterology Department KatiMali

Objectives were to determine the frequency, describe the epidemiological and clinical aspects, therapeutic and analyze the postoperative course. Methodology: This was a retrospective study that covered 08 years (January 2009-December 2017). Inclusion criteria: all patients operated for obstruction of the small bowel by hail and/or flanging. Exclusion criteria: other types of occlusion and non-operated patients. Result: We recorded a total of 162 cases of hail obstruction by adhesions and/or flanges at 2.87%. The average age was 32.04, the sex ratio was 1.2. The average consultation time was 4 days. Abdominal pain associated with stopping of material and gas was present in all our patients. X-ray of the abdomen without preparation carried out in all the patients made it possible to objectify in 150 patients (92.6%) of the hydro-hail levels. Inoperative occlusion of hail on flange was present in 80 patients (49.4%). Occlusion of the small bowel on flange and adhesion was present in 69 patients. Adhesion obstruction of hail accounted for 6.8% (11 cases). The most commonly used surgical technique was flange resection in 91 patients (56.2%). The follow-up was simple in 151 patients (93.2%). Mortality was 1.2% of cases, i.e. 2 deaths. The average duration of hospitalization was 6 days. Conclusion: Occlusion of the small bowel by flanging and/or adherence is a surgical emergency whose prognosis depends on early management.

关键词： Postoperative Occlusion Hail Bridle/Adherence Mali

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