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Capability of Visible-Near Infrared Spectroscopy in Estimating Soils Carbon, Potassium and Phosphorus

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Optics and Photonics Journal 2018年第5期8卷 123-134页

作者： bakamba dite Djeneba Sacko Souleymane Sanogo Hamidou Konare abdramane ba Tiéman Diakite Laboratoire d’Optique de Spectroscopie et des Sciences Atmosphériques (LOSSA) FST Université des Sciences Techniques et des Technologies de Bamako (USTTB) Bamako Mali Laboratoire Sol-Eau-Plantes (LSEP) de l’Institut d’Economie Rural (IER) de Sotuba Bamako Mali

The spectroscopy technique has many advantages over conventional analytical methods since it is fast and easy to implement and with no use of chemical extractants. The objective of this study is to quantify soil total Carbon (C), available Phosphorus (P) and exchangeable potassium (K) using VIS-NIR reflectance spectroscopy. A total of 877 soils samples were collected in various agricultural fields in Mali. Multivariate analysis was applied to the recorded soils spectra to estimate the soil chemical properties. Results reveal the over performance of the Principal Component Regression (PCR) compared to the Partial Least Square Regression (PLSR). For coefficient of determination (R2), PLSR accounts for 0.29, 0.42 and 0.57;while the PCR gave 0.17, 0.34 and 0.50, respectively for C, P and K. Nevertheless, this study demonstrates the potential of the VIS-NIR reflectance spectroscopy in analyzing the soils chemical properties.

关键词： VIS-NIR Spectroscopy Soils Chemical Properties Principal Component Regression (PCR) Partial Least Square Regression (PLSR)

Classification of African Mosaic Virus Infected Cassava Leaves by the Use of Multi-Spectral Imaging

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Optics and Photonics Journal 2015年第8期5卷 261-272页

作者： Mama Sangare Thérèse Atcham Agneroh Olivier Kossan bagui Issiaka Traore abdramane ba Jeremie Thouakesseh Zoueu Laboratoire d’Optique de Spectroscopie et des Sciences de l’Atmosphere Université des Sciences Techniques et Technologies de Bamako (USTTB) Bamako Mali Laboratoire de Phytopathologie et Biologie Végétale Institut National Polytechnique Felix Houphou&#235 t-Boigny Yamoussoukro Cote d’Ivoire Laboratoire d’Instrumentation Image et Spectroscopie Institut National Polytechnique Felix Houphou&#235 t-Boigny Yamoussoukro Cote d’Ivoire

In this work, we have used multispectral imaging technology to classify cassava leaves infected by African mosaic virus by the use of their unique spectral finger print. The spectra are extracted from transmission, reflection and diffusion of their multispectral images;they have been then analyzed with statistical multivariate analysis techniques. Principal component analysis (PCA) has been used followed by K-means and Ascending Hierarchical Classification (AHC) to endorse the classification. The contribution of this work is the use of multispectral imagery which binds both spatial and spectral information to differentiate and sort infected leaves. The results show that the multimodal and imaging spectroscopy may allow blind identification and characterization of infected leaves.

关键词： Classification Infected Leaves African Cassava Mosaic Virus Multispectral Imaging

Head and Neck Cellulitis of Dental Origin and HIV Infection: 24 Cases

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International Journal of Otolaryngology and Head & Neck Surgery 2022年第1期11卷 18-24页

作者： Amady Coulibaly Abdoulaye Kassambara Youssouf Sidibé Diomanté né Camara abdramane S. Maï ga Kadia Keita Alphousseiny Touré Boubacar ba Hamady Traoré Daouda K. Minta Department of Stomatology and Maxillofacial Surgery CHU-CNOS Bamako Mali Faculty of Medicine and Odontostomatology Bamako Mali Departement of Otorhinolaryngology CHU M&#232 re-Enfant “le Luxembourg” Bamako Mali Department of Infectious Diseases CHU-Point G Bamako Mali

Cervico-facial cellulitis is a serious poly-microbial infection of the deep fascial spaces of the face and neck which may be life-threatening. The existence of an underlying ground that causes immune failure may promote or complicate this infection. The aim of this work was to describe the socio-demographic and clinical aspects of dental cervicofacial cellulitis associated with HIV in our context. It was a descriptive cross-sectional study that concerned all cases of cervico-facial cellulitis with positive HIV serology encountered at the CHU-CNOS of bamako from May 2017 to January 2018. Twenty-four cases were collected. Cellulite with positive HIV accounted for 1.14% of consultations in the service. Females accounted for 67.66% of cases with a sex ratio of 0.5. The average age was 33.58 years old. Housewives accounted for 33.33% of cases. The bride and groom represented 83% of the cases. The triad (pain, swelling, and trismus) was the most common reason for consultation with 41.7% of cases. The tooth 37 was involved in 25% of the cases. In 87% of cases, patients were screened in the service. HIV-1 was found in 75.0% of cases. Complications such as peripheral facial palsy were found in three cases. The medico-surgical treatment was performed in 23 cases with a favorable evolution. The search for an underlying ground, in particular HIV infection, must be systematic in the face of diffuse cervicofacial cellulitis.

关键词： Cellulitis Cervico-Facial Infection HIV

Skin Cancer of the Face in Albinos: Case Management

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International Journal of Otolaryngology and Head & Neck Surgery 2022年第1期11卷 31-38页

作者： Amady Coulibaly Sibiri Traoré Sory Ibrahima Sidibé Koniba Diabaté Youssouf Sidibé Garango A. Allaye Mariam G. Diallo abdramane S. Maiga Boubacar ba Hamady Traoré Alhousseyni Ag Mohamed Department of Stomatology and Maxillofacial Surgery CHU-CNOS Bamako Mali Faculty of Medicine and Odontostomatology Bamako Mali Radiotherapy Department of the Hospital of Mali Bamako Mali Departement of Otorhinolaryngology CHU Mère-Enfant “le Luxembourg” Bamako Mali Military Hospital of bamako Bamako Mali

Albinism represents a set of genetic abnormalities characterized by a decrease or absence of melanin. Albinism in the black subject combines white skin and other morphological characteristics of the black race. Squamous cell carcinomas of the face in albinos are a common reason for consultation. Management remains most often complex. The objective of this work was to describe the management of a case of skin cancer of the face in an albino woman. She was a 26-year-old albino woman. She is a housewife and married. She consulted on 02/04/17 for a tumor of the right side. The tumour was about 6 cm in diameter and had been growing for 7 months. There was no palpable head and neck disease. The rest of the clinical examination was normal. The biopsy concluded that there was squamous cell carcinoma. The extension assessment had not found a secondary location. She received an excision of the tumor with a margin of 10 mm and a total skin graft. The trend has been favourable after three years. No recurrence was observed. The management of facial skin cancer should be the subject of a multidisciplinary consultation. Surgery occupies an important place in the therapeutic arsenal.

关键词： Skin Cancer Face Albino Treatment

Factors of Nephroblastomas’ Relapse in Children at the Academic Hospital Gabriel Toure, bamako, Mali

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Open Journal of Pediatrics 2020年第1期10卷 131-136页

作者： Djénèba Konaté Coulibaly Yacaria Doumbia Abdoul Karim Doumbia Aliou Amadou Issa Oumar M. Coulibaly Traoré Fousseyni K. Traoré Kamaté Bénoi Djiré Mamadou Kassoum Coulibaly Youssouf Traoré abdramane Togo Pierre Koné Oumou Togo Boubacar Service of Pediatrics Teaching Hospital Gabriel Touré Bamako Mali Service of Pediatric Surgery Teaching Hospital Gabriel Touré Bamako Mali National Public Health Research Institute Bamako Mali

Introduction:?The factors of nephroblastomas’ relapse are a set of elements playing a role in the reappearance of cancer cells in the same place of the kidney or in other regions of the body after a 5-year remission.?Objectives:?To determine the frequency and the factors of nephroblastomas’ relapse in the pediatric oncology unit and pediatric surgery of the academic hospital Gabriel Touré. Materials and methods:?This was a retrospective study carried out from January 1, 2005 to December 31, 2019 in all children treated for nephroblastoma relapses in the pediatric oncology unit and in the pediatric surgery service.?Results:?In 15 years, we have managed 182 cases of nephroblastoma, of which 128 cases were declared in complete remission after 5 years and 12 cases presented a recurrence. The relapses factors were: capsular break, intraoperative tumor rupture, presence of an associated malformation, surgery without neoadjuvant chemotherapy and tumor surgical stage (p??0.05). Patients’ age at diagnosis, sex, number of neoadjuvant and adjuvant chemotherapy sessions and histological type were not decisive (p?> 0.05).?Conclusion:?Relapses are more and more frequent in cases of nephroblastoma. The correct use of the protocol would avoid these recurrences.

关键词： Nephroblastoma Relapse Factors Children Mali

Carbon and Nitrogen Mineralisation of a Lixisol in South Sudan Zone of Burkina Faso

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Agricultural Sciences 2023年第11期14卷 1547-1560页

作者： abdramane Sanon Alain P. K. Gomgnimbou Kalifa Coulibaly Fidele K. Zongo Tièro-Wè Chris Julius Dabire Wilfiried Sanou Hassan B. Nacro Centre National de la Recherche Scientifique et Technologique (CNRST) Institut de l’Environnement et de Recherche Agricole (INERA) Laboratoire Sol-Eau-Plante (SEP) Station de Farako-Ba Bobo-Dioulasso Burkina Faso Laboratoire d’étude et de recherche sur la fertilité du sol (LERF) Institut du Développement Rural (IDR) Université Nazi Boni Bobo-Dioulasso Burkina Faso Centre universitaire de Tenkodogo Université Thomas Sankara Ouagadougou Burkina Faso Unité de Formation et de Recherches en Sciences de la Vie et de laTerre Université Joseph KI-Zerbo Ouagadougou Burkina Faso

In today’s environment where agriculture needs to produce sustainably, local fertilizer resources must be encouraged to achieve multiple crop performance and environmental goals. The purpose of this study was to investigate the effects of combined inputs of biowaste and inorganic fertilisers on the mineralization of carbon and nitrogen of a Lixisol under continuous upland rice growing conditions. To this end, agronomic trials were set up in 2018 and 2019, using a Fisher randomized complete block design with 6 treatments and four replications at Farako-ba research station. The treatments were: T1 (Control), T2 (NPK + Urea), T3 (7500 kgha of Chicken droppings);T4 (7500 kg/ha of chicken droppings + 100 kg/ha of urea);T5 (7500 kg/ha of chicken droppings + 500 kg/ha of Burkina Phosphate);T6 (7500 kg/ha of chicken droppings + 500 kg/ha of Burkina Phosphate + 100 kg/ha of urea). Highest respirometry was observed in treatments T3, T4 and T6 and treatment T4 significantly increased the mineralization coefficient by 15% after 21 days of incubation. T4 and T6 resulted in increases in ammonium ion of 74.15% and 100%, respectively, compared to the control. Likewise, treatments T4 and T6 resulted in a significant increase in nitrate ion of 104.83 and 103.25%, respectively. Biowaste combined with inorganic fertilizers may have a capacity to improve the availability of leachate nutrients under upland rice conditions.

关键词： Bio-Waste Rice Carbone Nitrogen and Mineralisation

Lipid Profile among the Diabetic and Non-Diabetic Obese Patients

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Open Journal of Internal Medicine 2018年第1期8卷 89-97页

作者： Djénèbou Traoré Aminata Hamar Traoré Djeneba Sylla Sow Massama Konaté Amadou Koné Hadiaratou Doumbia N’Diaye Modibo Mariko Ibrahim Amadou Dembélé Moctar bah bah Traoré Djibril Sy Ichaka Menta Hamidou Oumar ba Nongoba Sawadogo abdramane Traoré Assa Traoré Sidibé Assétou Soukho Kaya Abdel Kader Traoré Mamadou Dembélé Hamar Alassane Traoré Service of Internal Medicine and Endocrinology of Hospital of Mali Bamako Mali Service of Internal Medicine of Point G University Hospital Center Bamako Mali Service of Cardiology of Gabriel Touré University Hospital Center Bamako Mali Service of Internal Medicine of CHR de Kaya Kaya Burkina Fasso Service of Internal Medicine of Kati University Hospital Center Bamako Mali

Objective: To study the lipid profile among the diabetic and non-diabetic obese patients. Methods: It was a descriptive and prospective study carried out over a period of 9 months from March to December 2010. It concerned all the patients who came for consultation in endocrinology at the internal medicine of Point G University Hospital Center and at the National Center for Diabetes Research. All the patients were included without any gender or age difference, voluntary and with a BMI ≥ 30 kg/m2. Results: Out of the 1543 patients received in consultation, we had identified 178 obese people that is to say 11, 53% of the cases. Among these cases 60 abided by our criteria with 30 diabetic patients and 30 non-diabetic ones. The average age was 45.83 ± 14.68 years old;73.3% were more than 40 years old. The sex ratio was 0.07. Two third (66.7%) of our patients limited their eating diet to the three main meals/day and 61.7% were sedentary. The notion of family obesity was found in 93.4% of the cases, of family diabetes in 58.3% of the cases, of past personal medical history of hypertension in 43.3% of the cases. It was about an android obesity in 91% and Gynoid in 9% of the cases. The BMI was 55% of the cases comprised between 30 - 34.9 kg/m2. The lipid profile noticed was: A hypertriglyceridemia: 33% of diabetic patients and 10% of non-diabetic patients, a high LDL cholesterol: 37% of diabetic patients and 30% of our diabetic patients, a HDL hypocholesterolemia: 40% of the diabetic patients and 20% of the non-diabetic patients, a total hypercholesterolemia: 37% of the diabetic patients and 23% of non-diabetic patients. A hyperglycemia was noticed in 13.3% of non-diabetic patients. Conclusion: The frequency of metabolic troubles was higher in obese diabetic patients compared to non-diabetic obese patients mainly the hypertriglyceridemia.

关键词： Diabetes Obesity Dyslipidemia