检索结果-南通市图书馆

First Record of Pristomerus pallidus (Hymenoptera: Ichneumonidae: Cremastinae) (Kriechbaumer) Parasitizing Hellula undalis (F.) (Lepidoptera: Pyralidae) in Crucifer Crop in senegal

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Entomology 2023年第4期11卷 256-263页

作者： Etienne Tendeng Etienne Tendeng Babacar Labou El Hadji serigne sylla Amadou Baldé Mamadou Diatte Oumar seydi Issa Alé Ndiaye Pape Diop serigne omar sène saliou Djiba Karamoko Diarra Integrated Production and Protection Laboratory in Agroecosystems (L2PIA) Faculty of Science and Technology Cheikh Anta Diop University (UCAD) Dakar Senegal Entomology Laboratory of Djibé lor Agricultural Research Centre Senegalese Institute for Agricultural Research (ISRA) Ziguinchor Senegal

Cabbage is today an economically important crop grown in more than 90 countries around the world. Production is constantly threatened by pests including the cabbage webworm, Hellula undalis (F.) (Lepidoptera: Pyralidae) which just one or two larvae can cause severe damage by infesting the growing points or shoots of young plants. Hellula undalis is difficult to control by the use of chemical insecticides. The establishment of effective biological control is needed. The parasitoid species Pristomerus pallidus (Hymenoptera: Ichneumonidae: Cremastinae) was recorded for the first time in senegal on larvae of Hellula undalis from cabbage fields infested with H. undalis. Laboratory observed parasitism was 7.4%. This is the first record of Pristomerus pallidus parasitizing Hellula undalis from senegal. Furthermore, studies on the potential regulation of Hellula undalis under controlled and field conditions need to be evaluated for utilizing this parasitoid as a biocontrol agent against the cabbage webworm. .

关键词： Biological Control Parasitoid Pest Market Gardening Ziguinchor Casamance

Development, Validation and Application of a spectrofluorimetric Method for the Quantification of nevirapine in Pharmaceutical Formulations Tablets and suspensions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Analytical Chemistry 2022年第6期13卷 206-227页

作者： Lucien Murhula Namegabe Aladin Ombeni Mahano serigne omar sarr Official University of Bukavu Faculty of Pharmaceutical Sciences and Public Health Bukavu Bukavu Democratic Republic of the Congo Cheikh Anta Diop University Analytical Chemistry and Food Sciences Laboratory Dakar Senegal National Medecines Control Laboratory Dakar Senegal

The development of the spectrofluorimetric method can be considered a promising alternative that is relatively less expensive and sufficiently reliable. In the current literature, no method for the analysis of nevirapine by spectro-fluorimetric has been reported. The proposed method is based on the transformation of naturally non-fluorescent nevirapine into a fluorescent derivative after chemical synthesis. Maximum excitation and emission wavelengths are 290 nm and 357 nm respectively. The analytical performance of the method demonstrates linearity in the concentration range 1.5 × 10sup>-2sup> and 13.5 × 10sup>-2sup> μg/mL with a correlation coefficient (r) greater than 0.999. The detection (LOD) and quantification (LOQ) limits found are 1.97 × 10sup>-3sup> μg/mL and 5.48 × 10sup>-3sup> μg/mL respectively. Recovery is achieved with 99.9% and 100.3% trueness, intra-day precision with a coefficient of variation of repeatability (CVr) of 0.99% and inter-day precision with a coefficient of variation of precision (CVR) of 1.7%. The method has been successfully applied in the analysis of 10 batches of nevirapine tablets and suspensions.

关键词： spectrofluorimetric Method Validation nevirapine sodium Hypochlorite

Development and Validation of a spectrofluorimetric Method for the Assay of Tetracycline in Capsules

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Analytical Chemistry 2018年第3期9卷 162-170页

作者： Lucien Murhula Namegabe serigne omar sarr Yérim Mbagnick Diop Department of Galenic Pharmacy Official University of Bukavu Bukavu Democratic Republic of the Congo Analytical Chemistry and Food sciences Laboratory Cheikh Anta Diop University Dakar Senegal National Medecines Control Laboratory Dakar Senegal

The purpose of this study is to develop and validate a method for the analysis of tetracycline capsules by spectrofluorimetry. A pH 9 borate buffer was used as diluent of tetracycline after reaction with magnesium salt at the excitation wavelength of 372 nm and 516 nm of emission. A linear response was observed between 0.25 μg/mL and 1.5 μg/mL with a correlation coefficient (R) of 0.9998. The detection and quantification limits found are 0.0125 μg/mL and 0.0412 μg/mL respectively. The proposed method proved trueness with a recovery between 99.88% and 101.10%. The relative standard deviations of repeatability and intermediate precision found ≤2.88% reflected a good precision of the method. The proposed method is therefore valid within the limits of 90% to 110%. The proposed method was applied to the quality control of 9 tetracycline samples from market and gave results in accordance with the pharmacopoeia standards.

关键词： Validation spectrofluorimetry Tetracycline

Comparative study of the Protein Contents of Local and Imported Rice Consumed in senegal

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Applied sciences 2024年第2期14卷 561-571页

作者： Amadou Bouye seydi Nadina Zuleika Leite serigne omar sarr Yérim Mbagnick Diop Amadou Diop Animal Physiology Laboratory Department of Animal Biology Faculty of Science and Technology Cheikh Anta Diop University Dakar Senegal Analytical Chemistry and Bromatology Laboratory Faculty of Medicine Pharmacy and Odontology Cheikh Anta Diop University Dakar Senegal

Protein is essential for the growth and maintenance of the body. They play a crucial role in different biological processes. This study focuses on comparing the protein contents of local rice grown in the senegal River valley and rice imported from Asia. The objective is to evaluate the importance of the protein nutritional value of local rice compared to imported rice. Protein contents were determined using the Kjeldahl method. The results of the protein assays show that local rice varieties such as sahel 108 and sahel 134 grown in the Thilène basins had protein percentages comparable to those of imported rice. The protein percentages were 15.19% ± 0.91% for the sahel 108 variety and 16.62% ± 0.01% for the sahel 134 variety compared to 15.8% ± 0.01% on average for imported rice. Thus from the point of view of protein content, local rice has a nutritional value identical to that of imported rice which it can validly replace. It is important in senegal to encourage local production, which would make it possible to reduce imports on the one hand and to make quality rice available to the local senegalese market on the other. sahel varieties with high protein contents deserve large-scale development to meet the country’s protein needs.

关键词： Proteins Rice Nutritional Value Kjeldahl Method River Valley senegal

Abrikossof’s Tumor: Report of a Case

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Obstetrics and Gynecology 2023年第2期13卷 241-246页

作者： Ndama Niang Aissatou Mbodji Mamour Gueye Moussa Diallo Yaye Fatou omar Gaye serigne Modou Kane Gueye Marie Edouard Faye Dieme Principal Hospital Dakar Senegal Cheikh Anta DIOP University Dakar Senegal Philippe Maguilen senghor Health Center Dakar Senegal Pikine Hospital Dakar Senegal Assane seck University Ziguinchor Senegal

The granular cell tumor of the breast is a rare tumor and a usually benign disease that appears clinically and radiologically like a malign tumor. We report a case of GCT in a woman of 41 years, who present a clinically and radiologically suspect later. The anatomopathological examination showed the benign tumor proliferation and a large tumorectomy was realized. The immunostaining with Ps100 and NsE protein confirm the nature of the tumor.

关键词： Abrikossof Breast Benign

Assessment of Poultry Feed Contamination Level by Aflatoxin B1: Quantification by Two Chromatographic Analysis Methods

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition sciences 2022年第11期13卷 950-961页

作者： Rokhaya Gueye Viviane Chatchueng sandefo Babacar Beye Elhadji Ousmane Faye Amadou Diop serigne omar sarr Bara Ndiaye Yérim Mbagnick Diop Laboratoire de Chimie Analytique et Bromatologie Faculté de Médecine de Pharmacie et d’Odontologie-Stomatologie Université Cheikh Anta DIOP Dakar Sénégal Laboratoire de Mycotoxines Institut de Technologie Alimentaire Route des Pères Maristes Dakar Sénégal

Aflatoxin B1 is a mycotoxin that can contaminate a wide feedstuffs variety. Ingestion of contaminated feed by poultry can lead to impaired health and zootechnical performances but also a human diet safety problem related to residues presence in animal origin products. Aflatoxin B1 contamination of poultry feed samples marketed in Dakar city and in peri-urban areas (Gorom, sangalkam) was studied. A total of 15 samples were collected from Dakar city markets as well as from poultry farms in Gorom and sangalkam areas. Aflatoxin B1 quantification was performed by high performance liquid chromatography and thin-layer chromatography. HPLC results showed that all samples were contaminated with levels ranging from 0.15 to 22 ppb, 0.099 to 2.05 ppb and 0.099 to 4.95 ppb respectively for Gorom, sangalkam and Dakar. Only the finishing feed from Gorom had an aflatoxin B1 level above the maximum limit set by regulations. TLC is a suitable method for aflatoxins detection. However, it was associated with overestimation for aflatoxin B1 quantification. Results suggest that poultry feed represents a real source of human diet contamination. In addition, HPLC remains the most reliable quantification technique for quality control.

关键词： Poultry Feed Aflatoxin High Performance Liquid Chromatography Thin-Layer Chromatography Dakar

Validation of a Capillary Electrophoresis Method for Analyzing Chlorphenamine Maleate-Based Drugs Using the Accuracy Profile Approach

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Analytical Chemistry 2016年第5期7卷 452-459页

作者： serigne omar sarr Eddy Kevin senan Ouendo Thierno Mouhamed Wane El Hadji Assane Diop Diop Amadou serigne Momar Ndiaye Rokhaya Gueye Khadidiatou Thiam Aminata sarr Ousmane Niass Djibril Fall Bara Ndiaye serge Rudaz Yérim Mbagnick Diop Laboratory of Analytical Chemistry and Food sciences Cheikh Anta Diop University Dakar Senegal National Medicines Control Laboratory Ministry of Health Dakar Senegal Laboratory of Pharmaceutical Analytical Chemistry School of Pharmacy Geneva Switzerland Laboratory of Organic and Therapeutic Chemistry Cheikh Anta Diop University Dakar Senegal

This study aimed at validating an analytical method, using the accuracy profile approach, for the assay of chlorphenamine maleate by capillary electrophoresis. The validation was done using concentrations ranging between 75% and 125% of the target concentration of 600 mg/ml. Validation standards were prepared separately in triplicate for each series. studied validation criteria were selectivity, linearity, trueness, precision (repeatability and intermediate precision), accuracy and limits of detection and quantification. The method was selective, with recoveries ranging between 99.55% and 99.84%. The relative standard deviations of repeatability and intermediate precision were ssay method between 75% and 100% of the target concentration of 600 mg/ml. The detection and quantification limits were 5 mg/l and 15 mg/l respectively. This ecological and economical method was applied to identify and quantify chlorphenamine maleate in 3 samples of chlorphenamine maleate-based drugs provided by the senegalese National Medicines Control Laboratory. All analyzed samples were in accordance with official standards.

关键词： Analytical Validation Chlorphenamine Maleate Quality Capillary Electrophoresis CEB senegal

Audit of the Physico-Chemical Quality of Amoxicillin Based Drugs Marketed in senegal

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Analytical Chemistry 2023年第9期14卷 351-361页

作者： Coulibaly Dalané Bernadette sow Fatoumata Tata Naco Mohamed El Béchir N’Diaye Mahamar Toure Hamadoun Abba Mariko Madani Dackouo Blaise Diouf Diéry Koumare Benoit Yaranga sarr serigne omar Faculty of Medicine Pharmacy and Odonto-Stomatology University Cheik Anta DIOP Dakar Dakar Sénégal Faculty of Pharmacy of Bamako University of Technical and Technological Sciences of Bamako (FAPH/USTTB) Bamako Mali National Health Laboratory of Mali Bamako Mali National Drug Control Laboratory of senegal (LNCM) Dakar Sénégal

Non-compliant antibiotics pose problems of therapeutic efficacy at the level of the individual, but also a serious public health problem. The objective of our study was to evaluate the quality of generic amoxicillin (42 samples) by analytical methods in Dakar/senegal. At 100% visual inspection of compliance;100% compliance uniformity test;at the dissolution test all > 80% (86.8% to 108.8%). The presence of amoxicillin with the following contents: Tablets (95.2% to 104.1%);Capsules (91.5% to 113.9%) and suspensions drinkable (96.9% - 118.7%). All the samples in our study are 100% compliant according to the European and American pharmacopoeias (90% - 120%). Other studies should therefore be oriented in the direction of stability as well as the dosage of degradation products.

关键词： Quality Control Amoxicillin Analytical Methods

Improving Postpartum Haemorrhage Management Using simulation in senegal: Midterm Results

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Obstetrics and Gynecology 2017年第13期7卷 1292-1299页

作者： Mamour Gueye Moussa Diallo Mame Diarra Ndiaye Gueye omar Gasama Abdoul Aziz Diouf Mouhamadou Mansour Niang Mohamed Diadhiou Astou Coly Niassy serigne Modou Kane Gueye Marie Edouard Faye Dieme Magatte Mbaye Philippe Marc Moreira Alassane Diouf Jean Charles Moreau Gynecologic and Obstetric Clinic Aristide Le Dantec Teaching Hospital Cheikh Anta Diop University Dakar Senegal

Objective: To assess a training approach in Emergency Obstetric and neonatal Care (EmONC) to strengthen skills of healthcare providers and reduce maternal mortality. Materials and methods: The approach was based on the skills training using the so-called “humanist” method and “life saving skills”. simulated practice took place in the classroom through thirteen clinical stations summarizing the clinical skills on EmONC. The evaluation was done in all phases and the results were recorded in a database to document the progress of each learner. Results: We trained 432 providers in 10 months. The increase in technical achievements of each participant was documented through a database. The combination of training based on the model “learning by doing” has ensured learning and mastering all EmONC skills particularly postpartum haemorrhage management and reduced missed learning opportunities. Conclusion: The impact of training on postpartum haemorrhage management and maternal mortality is a major challenge in terms of prospects.

关键词： Emergency Obstetric Care Postpartum Haemorrhage Training simulation