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Relevance and Compliance of Requests for Dental Panoramic Radiography Examination at Yaounde (Cameroon)

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Advances in Molecular Imaging 2020年第4期10卷 31-37页

作者： armel Philippe Awana Ambroise Merci Seme Engoumou Mballa Amougou Jean Goni Ismaila Odile Fernande Zeh Department of Biomedical Sciences University of Ngaoundere Ngaoundere Cameroon Yaounde Jamot Hospital Yaounde Cameroon Faculty of Medicine and Biomedical Sciences University of Yaounde I Yaounde Cameroon In-Vitro Fertilisation Yaounde Gynaecological Endoscopic Surgery and Human Reproductive Teaching Hospital Yaounde Cameroon Yaounde University Teaching Hospital Centre Yaounde Cameroon Yaounde Gynaecology Obstetrics and Pediatrics Hospital Yaounde Cameroon

Background: Research studies made in Cameroon on compliance and relevance in the various areas of imaging, show the failure to comply with administrative and clinical criteria. These research studies led to recommendations meant for result amelioration. However, the orthopantomogram (OPT) field remains less studied in that regard in Cameroon. Aim: Evaluate the relevance and compliance of examination requests for panoramic dental radiography. Setting and Design: It is a descriptive cross-sectional study with a consecutive sample of dental panoramic requests identified during the study period in 4 radiology centres of Yaoundé. Material and Methods: Variables studied here were the validity criteria of imaging examination. Request: Five of which are of administrative order (date of the request, requesting department, patient’s identity, patient’s age, applicant’s identity) and three of clinical order (anatomic region, reason for the examination and the purpose of the examination). Statistical Analysis: Chi-squared test was used with confidence interval of 95%. Results: Patient’s identity (name) was the criteria carrying the highest information (98.9%), followed by the name of the applicant physician (91.6%). Out of 179 requests analysed, 8.6% had complete information. 46.4% of requests had no indications. Dental surgeon was the top prescriber with a total of 112 (62.6%). Conclusion: The quality of dental panoramic requests was not optimal in Yaounde, with lack of precision mostly noted at the level of clinical criteria.

关键词： Compliance Relevance Request Panoramic Dental Orthopantomogram

Distribution and Characterization of Heavy Metal and Pollution Indices in Landfill Soil for Its Rehabilitation by Phytoremediation

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Journal of Geoscience and Environment Protection 2022年第1期10卷 151-172页

作者： Kraidy N’gattah Barthélémy armel Bolou Bi Bolou Emile Allou Kouassi Daniel Université Félix Houphouë t-Boigny Unité de Formation et Recherche des Sciences de la Terre et des Ressources Minières Laboratoire des Sciences du Sol de l’Eau et des Géomatériaux (LSSEG) Abidjan C&#244 te d’Ivoire

Population growth associated with urban development in African cities is a key environmental concern in development programs. Indeed, urban areas are strongly impacted by the production of municipal waste, the management of which remains problematic and is only stored in open dumps. This is the case in the city of Bonoua, a small town located 59 km east of Abidjan in the South Comoé region of Côte d’Ivoire. The management of municipal waste in this town is crucial because all the mineral water sources are concentrated in this town. The objective of this study is to characterize and map the distribution of trace metal elements in the largest urban landfill in the city in order to propose an efficient strategy for rehabilitation into an urban park. Soil samples were collected from the entire site (landfill and surrounding soil) and from a control site. The total content of trace metals (Pb, Cd, Cr, and Zn) in the soil was analyzed by X-ray fluorescence spectrometry (XRF). Soil pollution was evaluated through enrichment factors, geoaccumulation indices and pollution indices. The results show that the calculated geoaccumulation indices and their distribution maps indicate a pollution of the site in these elements. The values of the PI higher than the unit reveal a pollution of the site in several elements. The levels of Pb, Cd, Cr and Zn are higher than the levels in the upper continental crust and in the control soil. The spatial distribution shows a significant accumulation of Pb, Cr and Zn on the landfill while Cd is concentrated in the surrounding soils. The calculated enrichment factors suggest an anthropogenic origin of the heavy metal at the study site. These results indicate polymetallic pollution by metals that can persist in the environment and affect human health.

关键词： Municipal Landfill Soil Heavy Metals Pollution Bonoua Ivory Coast

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法国政要女保镖

政府法制 2011年第21期 44-45页

作者： armel Mehani 不详

在很多国家,政要女保镖正逐渐流行起来。她们拥有高学历和高智商,身手了得,出色的个人素质和危机处理能力让她们很快便成为政客们的抢手货。在法国"国家保护政要特勤机关",就有这样的一群巾帼英豪。她们是一群现代法兰西女骑士,装备着... 详细信息

在很多国家,政要女保镖正逐渐流行起来。她们拥有高学历和高智商,身手了得,出色的个人素质和危机处理能力让她们很快便成为政客们的抢手货。在法国"国家保护政要特勤机关",就有这样的一群巾帼英豪。她们是一群现代法兰西女骑士,装备着耳机、无线电和左轮手枪,时刻准备着为保护国家领导人献出自己的生命。法国"国家保护政要

关键词：特勤法国法兰西共和国女保镖

Perimeters of Protection Demarcation for New Boreholes of Bonoua Aquifer (Southeastern, Côte d’Ivoire) through Hydrogeological Modeling

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Journal of Geoscience and Environment Protection 2017年第11期5卷 118-138页

作者： Kouamé Kan Jean Aké Gabriel Etienne Koblan armel Kouadio Djé Kouakou Bernard Jourda Jean Patrice Water and Environment Sciences and Technical Laboratory (LSTEE) UFR of Earth Sciences and Mineral Resources University of Félix Houphou&#235t-Boigny Abidjan C&#244te d’Ivoire Department of Climatology and Meteorological Applications National Meteorological Direction Abidjan C&#244te d’Ivoire

Located in the southeastern of Côte d’Ivoire, Bonoua aquifer contains an enormous groundwater potential. The new boreholes have been realized in this region to support the water supply of the populations. Moreover, in this region, agriculture is the main activity, whose pesticides used to guarantee the productivity, constitute a threat for groundwater. Thus, this study was undertaken in order to design a hydrogeological model able to simulate the piezometry of the Bonoua aquifer and determine the perimeters of protection for the new boreholes. The model, carried out under the Visual Modflow interface, was designed in steady-state mode and calibrated manually from the piezometry of the year 2000. The value of the standardized root mean squared residual of 4.86% (<10%) allows to say that the calibration obtained is considered satisfactory. Also, the correlation coefficient between observed and simulated heads of 0.95 permits to confirm a good calibration of the model. Perimeters of protection values were determined by simulating the paths of the virtual particles of water from the calibrated model. The simulations show that generally, the groundwater of Bonoua aquifer flows from north to south and the piezometric levels obtained vary between 65 m in the north and 5 m in the south. Upstream radius of the closed perimeters of protection calculated from the model varies from 172 to 482 m. However, those of distant perimeters of protection vary from 2877 to 6441 m.

关键词： Boreholes Hydrogeological Modeling Perimeters of Protection Visual Modflow Bonoua Aquifer

Smoking Addiction and Risk Factors in Teenagers in Abidjan, Cote d’Ivoire

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Open Journal of Pediatrics 2018年第4期8卷 293-302页

作者： Ake-Assi Marie-Helene Coulibaly Amed Eboua Tanoh Francois Bherat Kouadio armel Boko Kouassi Alexandre Department of Medical Pediatrics Teaching Hospital of YopougonAbidjanCote d’Ivoire Department of Public Health and Biostatistics Faculty of Medical SciencesUniversity Felix Houphouet-Boigny(UFHB)AbidjanCote d’Ivoire Service de Pneumologie CHU de CocodyAbidjanCote d’Ivoire

A prospective cross-sectional descriptive and analytical study was conducted using an individual questionnaire over a four-month period from October 04th, 2013 to February 06th, 2014 in Abidjan. It included teenagers aged from 13 to 17 who are students among which some are not attending school and living in the street for others. The purpose of this study was to describe the socio-demographic characteristics of the teenagers addicted to smoking and to determine the factors associated with smoking addiction. 446 teenagers were recruited. A prospective cross-sectional descriptive and analytical study was conducted over a four-month period from October 4th, 2013 to February 06, 2014 in Abidjan. There were 76% boys versus 26% girls. The prevalence of smoking addiction was 81.9% for teenagers not attending school and living in the street and 18.1% for teenage students. The average age of smoking initiation was 12.9 years. Sources of motivation for tobacco consumption were imitation (31.25%), curiosity (29.46%) and the desire of self-assertiveness (17.85%). Being of male sex, having non-educated parents, being in a single-parent home and in a family with more than five children were the features related to the status of teenagers not attending school and living in the street. Smoking addiction in teenagers was influenced by one of the parents smoking addiction. To address the problem of teenager addicted to smoking in Cote d’Ivoire, tobacco control interventions should be taken into account regarding to the psychosocial characteristics of teenagers, especially those living in the street.

关键词： Tobacco Teenagers School Street Children Cote d’Ivoire

Prognostic Factors of Comas in the Intensive Care Unit of the University Teaching Hospital of Parakou (Benin)

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Journal of Behavioral and Brain Science 2015年第11期5卷 503-512页

作者： Tchaou Blaise Adelin Adoukonou Thierry armel Zoumenou Eugene Mehou Loko Ulrich Donald Lokossou C. Thomas Unité d’Enseignement et de Recherche de Anesthésie Réanimation Faculté de Médecine Université de Parakou Parakou Benin Unité d’Enseignement et de Recherche de Neurologie Faculté de Médecine Université de Parakou Parakou Benin Unité d’Enseignement et de Recherche de Anesthésie Réanimation Faculté des Sciences de la Santé Université d’Abomey-Calavi Abomey-Calavi Benin Service d’Anesthésie Réanimation du Centre Hospitalier Universitaire Départemental de Parakou Parakou Benin

Background: Coma is a highly frequent situation associated with several diseases. Objective: That is to assess the prognostic factors of comas at the intensive care unit of the university teaching hospital of Parakou. Patients and Methods: It is a cross-sectional study with descriptive and analytical purpose based on prospective gathering of data. It has been performed from March 1 to July 31, 2014. The population study consists of 100 adult patients admitted to the intensive care unit for coma. The vital and functional prognosis data are studied. Results: The admission frequency of comatose patients to the intensive care unit is 44.4%. Patients’ mean age is 27 ± 13.9 years with extremes of 16 and 88 years. The average length of stay in the intensive care unit is 5.2 ± 5.6 days with extremes of 2 hours 30 minutes and 30 days. Mortality rate is 30%. Poor prognostic factors are: average Glasgow score of 6.8 ± 2.9 (p = 0.01), average outpatient simplified severity index (OSSI) of 9.1 ± 3.5 (p = 0.02), pupillary abnormality (p = 0.00), motor weakness (p = 0.00), average glycemia of 1.5 ± 0.82 g/L (p = 0.02), average systolic blood pressure of 130.9 ± 44.5 mm Hg (p = 0.03), average diastolic blood pressure of 80.8 ± 22.3 mm Hg (p = 0.03), average respiratory rate of 30.9 ± 10.6 cycles/min (p = 0.03) and average temperature of 37.8°C ± 1.2°C (p = 0.03). Conclusion: Coma is a pathological entity with high frequency in clinical medicine. Its positive diagnosis is easy, but etiological research is hard. Hospital mortality is high and influenced by several factors. Taking into account, those factors in care strategies can improve their prognosis.

关键词： Coma Prognostic Factors Morbidity Mortality

Simulation of a CIGS Solar Cell with CIGSe₂/MoSe₂/Mo Rear Contact Using AFORS-HET Digital Simulation Software

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Modeling and Numerical Simulation of Material Science 2022年第2期12卷 13-23页

作者： Donafologo Soro Adama Sylla N’Guessan armel Ignace Aboudoulaye Toure Amal Bouich Siaka Toure Bernabé Marí Department of Science and Technology Ecole Normale Supérieure (ENS) of Abidjan Abidjan Ivory Coast Solar Energy Laboratory FHB University of Abidjan-Cocody Abidjan Ivory Coast Department ofApplied Physics-IDF Polytechnic University of Valencia Valencia Spain

In this work, the AFORS-HET digital simulation software was used to calculate the electrical characteristics of the cell/n-ZnO/i-ZnO/n-Zn (O, S)/p-CIGSe2/p + -MoSe2/Mo/SLG. When the thickness of the CIGSe2 absorber is between 3.5 and 1.5 μm, the efficiency of the cell with an interfacial layer of MoSe2 remains almost constant, with an efficiency of about 24.6%, higher to that of a conventional cell which is 23.4% for a thickness of 1.5 μm of CIGSe2. To achieve the expected results, the MoSe2 layer must be very thin less than or equal to 30 nm. In addition, a Schottky barrier height greater than 0.45 eV severely affects the fill factor and the open circuit voltage of the solar cell with MoSe2 interface layer.

关键词： CIGS Molybdenum Diselenide (MoSe2) AFORS-HET Simulation Efficiency

Utility, Appropriateness of Request and Report of Computed Tomography Scan for the Diagnosis of Paranasal Sinuses Pathologies in a Sub-Saharan Africa Urban Setting

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Open Journal of Radiology 2021年第4期11卷 175-186页

作者： Yann Chris Mannel Eng armel Philippe Awana Ambroise Merci Seme Engoumou François Djomou Odile Fernande Zeh Faculty of Medicine and Biomedical Sciences The University of Yaounde I Yaounde Cameroon Jamot Hospital Yaounde Cameroon Ear Nose and Throat Unit Yaoundé University Teaching Hospital Yaounde Cameroun Yaoundé Gyneco-Obstetrical and Pediatric Hospital Yaounde Cameroon

Background: Computed tomography (CT) Scan is the imaging of choice for the diagnosis of sino nasal (SN) pathologies in sub-Saharan African setting. However, it is often requested by non experienced practitioners. We aimed to describe the utility and the appropriateness of CT Scan request forms and results in the diagnosis of SN pathologies. Method: We conducted a retrospective cross-sectional study in four health facilities in Yaoundé, Cameroun, from October 2018 to September 2019. All patients to whom SN CT Scan was performed were called for an appointment. After informed consent, data on the appropriateness and conformity of the request form were collected and compared to the guidelines of the French society of radiology. CT Scan results were also collected and the quality of the report was evaluated. Results: A total of 206 SN CT Scan request forms and reports were included, with a mean patient age of 37.7 ± 16.1 years. The request form was conformed to guidelines in 8.3% of cases and was found appropriate in 62.6% of cases. No CT Scan report had all the items required, and 159 (77.2%) reports were useful. The most common diagnosis in patients with abnormal results was chronic sinusitis (49.5%) and SN polyp or polyposis (19.4%). Conclusion: Most of SN CT Scan requested were appropriate and useful. However, the conformity of request forms and reports to the guidelines is low. Suggesting the need for capacity building for the diagnosis of SN pathologies especially for non specialists like general practitioners and nurses.

关键词： Appropriateness Conformity CT Scan Request Form Report Sino Nasal Pathologies

Management and Prognostic Factors of Penetrating Craniocerebral Wounds at One Teaching Hospital in Benin

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Open Journal of Modern Neurosurgery 2021年第1期11卷 34-48页

作者： Olatoundji Holden Fatigba Hamidath Bio Sika Yarou Kisito Quenum armel Hadonou Luphin Hodé Christian Padonou Alexandre Salako Allodé Department of Neurosurgery Medicine School of Parakou University Borgou Benin Africa Department General Surgery Medicine School of Parakou University Borgou Benin Africa Department of Trauma and Orthopedic Surgery Medicine School of Abomey-Calavi University Benin Africa

Introduction. Penetrating craniocerebral wounds (PCCWs) are a particular lesion in the category of traumatic brain injury (TBI). The objective of this study was to describe the management of these lesions, and to identify signifiant risk factors associated with mortality in patients with a PCCW. Methods. It was a transversal, descriptive and analytical study performed in Departmental Teaching Hospital of Borgou and Alibori in Benin. From January 1, 2015 to June 30, 2020, patients with a PCCW were retained. Risk factors of mortality and morbidity associated to etiological, clinical and surgical parameters were assessed using the chi-square test. p value Results. During the study period, 1267 cases of traumatic brain injuries (TBI) were admitted. Of these patients, 77 (6.1%) cases of PCCW were retained. These patients were divided into 66 (85.7%) male and 11 (14.3%) female. The mean age of the patients was 22.6 ± 14.8 years (range from 2 years to 70 years). The circumstances of occurrence were a traffic accident in 42 (54.5%) cases, an assault in 33 cases (42.9%) and a fall 2 (2.6%). The PCCW was unilateral in 71 cases (92.2%). A brain CT-scan was performed in 60 (77.9%) patients. Surgery was performed in 69 (89.6%) patients. Post-operative outcomes were simple in 59 (85.5%) cases. GCS, pupillary abnormalities, motor deficit were a statistically significant risk factor associated with death or sequels (p Conclusion. The identification of risk factors of mortality or sequels is a major step for an efficient management of PCCWs and a reduction of morbidity and mortality. Whatever strategies are adopted, prevention must remain a priority.

关键词： Traumatic Brain Injuries Craniocerebral Wounds Glasgow Coma Scale Risk Factors Mortality