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Energy and Power Engineering 2020年第1期12卷 1-15页

作者： Ousmane Sow mamadou Lamine Ba Mohamed Abderrahim Ould El Moujtaba Youssou Traore El Hadji Sow Cheikh Tidiane Sarr Masse Samba diop Grégoire Sissoko University Institute of Technology University of Thiès Thiès Sénégal Laboratory of Semiconductors and Solar Energy Physics Department Faculty of Science and Technology University Cheikh Anta Diop Dakar Senegal Ecole Polytechnique de Thiès Thiès Sénégal

In this work, we study the characteristics I-V and P-V of a silicon solar cell as well as its fill factor, its electrical power from the optimum thickness obtained in the base under variation of the irradiation energy flow of charged particles. The recombination velocity at the junction corresponding to the maximum power point was also deduced.

关键词： Silicon Solar Cell Flow Irradiation Energy Recombination Velocity Optimum Base Thickness

Indications and Results of Lower Gastrointestinal Endoscopy in a Regional Hospital Center in Senegal

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Open Journal of Gastroenterology 2023年第1期13卷 43-48页

作者： Marième Polèle Fall Marie Louise Basséne Salamata Diallo mamadou Ngoné Gueye Cheikh Ahamadou Bamba Cissé Madoky Magatte diop Daouda Dia Mouhamadou Mbengue Department of Gastroenterology and Hepatology Aristide Le Dantec Hospital Dakar Senegal Department of Gastroenterology and Hepatology General Hospital Idrrisa Pouye Dakar Senegal Department of Internal Medecine Regional Hospital Center of Thiès Thiès Senegal

Introduction: Gastrointestinal endoscopy plays a crucial role in the management of gastrointestinal diseases. The aim of this study was to report the indications and results of lower digestive endoscopy in a hospital center in Senegal. Patients and Methods: We conducted a descriptive retrospective study from September 1st, 2017, to September 30, 2018 at the gastrointestinal endoscopy unit of the regional hospital center of Thiès. All patients received for lower gastrointestinal endoscopy and whose reports were usable, were included. In the reports, we collected and analyzed sociodemographic data, indication and results of the endoscopic examination. Results: We included 250 patients. There were 140 men (sex ratio 1.27). The average age was 42 years [range 1 - 92 years]. There were 37 colonoscopies (14.8%), 51 rectosigmoidoscopies (20.4%) and 162 anorectoscopies (64.8%). The patients were from the region of Thiès in 82% of cases. In most cases, they were most often referred by general practitioners (22.8%) and surgeons (20.8%). The main indications were rectal bleeding (36.8%), hemorrhoidal disease (23.2%) and proctalgia (11.6%). Hemorrhoidal disease (63.6%), anal fistula (14%) and tumors (8.8%) were the most common pathologies. Conclusion: Admitted patients at the gastrointestinal endoscopy unit of the regional hospital center of Thiès have many indications as well as pathologies. Anal pathology is dominated by hemorrhoidal disease.

关键词： Lower Gastrointestinal Endoscopy Rectal Bleeding Hemorrhoidal Disease

Assessment of Knowledge, Attitudes and Practices Related to Contraceptive Use among Teenagers in High Schools and Colleges in Dakar, Senegal

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Advances in Sexual Medicine 2019年第3期9卷 29-39页

作者： Ndèye Marème Sougou Oumar Bassoum Ndèye Yacine Seck Mbathio diop Jean Baptiste Diouf mamadou Makhtar Mbacké Lèye Anta Tal-Dia Department of Preventive Medicine and Public Health Faculty of Medicine University Cheikh Anta Diop Dakar Senegal Institute of Health Development University Cheikh Anta Diop Dakar Senegal Hospital of Roi Baudoin Ministry of Health Dakar Senegal

Introduction: In Senegal, adolescents aged 10 to 19 years represent 22.9% of the total population. The unmet need for contraception in this part of the population remains high despite the health interventions implemented to promote their sexual health. The aim of this study is to analyze the practice of modern contraception in schools in Dakar high schools in Senegal during the year 2018. Methods: A cross-sectional study was conducted in high schools and colleges in Dakar from March 1 to April 30, 2018. This study involved 452 students. This was a self-administration of the questionnaires. After univaried and bivaried analyses, a multivariate logistic analysis identified the factors associated with students’ use of modern contraception. Results: The prevalence of modern contraceptive use among students is 8.84%. Factors associated with the use of modern contraceptive methods among students were age over 18 years (AR: 4.7, 95% CI [1.02 - 22.5]), male sex (AR: 27.8, 95% CI [6.8 - 100.0]), secondary school level (AR: 10.6, 95% CI [2.1 - 53.0]), access to a youth socio-educational home (AR: 3.9, 95% CI [1.1 - 14.9]) and having a child (AR: 25.6, 95% CI [2.2 - 100.0]). Conclusion: Our results concluded that modern contraceptive needs were better met among older male students, those who had an unfortunate experience of unwanted pregnancy and those attending school’s youth socio-educational homes. This suggests shortcomings in the promotion of sexual health among younger students, particularly those in the secondary grades.

关键词： Schooling Modern Contraception Senegal

Study on the Perceptions and Social Representations of Husbands on Family Planning in the Health District of Pout/Senegal

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Advances in Reproductive Sciences 2022年第2期10卷 59-72页

作者： mamadou Saliou Mbengue Abdoul Aziz Ndiaye Alioune Badara Tall Rakhmatoulaye Seck Awa Ba Ndeye Fatou Ngom Fatou Ndiaye Omar Sy Aladji Madior diop Anta Tal Dia Université Alioune diop Bambey Bambey Senegal Université Cheikh Anta diop Dakar Dakar Senegal

Contraception is a set of procedures that aim to achieve temporary infertility in a woman without her ability to conceive being engaged in the future. It plays an essential role in the health of women and children, the psychological well-being of husbands and allows, among other things, savings for the family. The objective was to study the perceptions and social representations of husbands on family planning. A mixed method was used with a qualitative dominance, carried out in the health district of Pout. The result showed that the perceptions and representations of husbands influence this practice family planning. Even if they have positive attitudes and a good level of knowledge about contraceptive methods, their involvement in FP practices remains low with gaps to be filled. Direct or intermediate variables such as the social, cultural, economic and religious aspects are pitfalls. Indeed, the commitment of men and the consideration of their social attributes are variables to be integrated into the process of information and awareness on family planning;this is crucial in achieving Sustainable Development Goal (SDG) 3 (Good Health and Well-being), including its target 7 focused on sexual and proactive health: a second best move towards the demographic dividend.

关键词： Family Planning Perceptions Social Representations Demographic Dividend

Posterior Urethral Valves without Reflux Associated with Bilateral Renal Cortical Atrophy: Diagnosis and Management

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Open Journal of Pediatrics 2023年第6期13卷 791-797页

作者： Bangoura Kaba Kolie Ouo-Ouo Camara Salematou Hassimiou Bangoura M’mah Aminata Camara Emmanuel Diallo Mohamed Lamine Diallo Fatoumata Binta diop mamadou mous.apha Kouyate mous.apha Beimy Pé Pediatrics Department CHU Donka Conakry Guinea Gamal Abdel Nasser University of Conakry Conakry Guinea Institute of Nutrition Conakry Guinea

The objective of this case report was to highlight the characteristics of posterior urethral valves observed in a 3-year-old patient and to describe their management. The case of a 4-year-old patient treated for a posterior urethral valve with bilateral renal cortical atrophy was reviewed. The diagnosis was confirmed by abdominal ultrasound, cystography and abdominal CT. He was referred to Martinique (a tertiary health establishment) for effective support. From the acute situation to the fortuitous discovery, its understanding must be deepened because of the potential immediate symptomatic impact in the form of renal colic which can be associated with sepsis, as well as in the long term on renal function. This observation is intended to help the attending physician to initiate his diagnosis and treatment.

关键词： Valves Urethra Posterior

Natural Enemies and Pest Control in Field-Grown Crop in Southern Senegal

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Advances in Entomology 2022年第4期10卷 287-299页

作者： 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 UCAD Integrated Production and Protection Laboratory in Agroecosystems (L2PIA) Faculty of Science and Technology Cheikh Anta Diop University Dakar Senegal ISRA Entomology Laboratory of Djibélor Agricultural Research Centre Senegalese Institute for Agricultural Research Ziguinchor Senegal

Crop pests are a permanent threat to horticultural production. Several control methods are recommended for their control, including biological control. This method based on the use of natural enemies is not well established. The objective of this study was to assess the diversity and abundance of natural enemies of crop pests. A survey of crops associated with pests was carried out on 144 fields in southern Senegal to measure the diversity and abundance of natural enemies of various crop pests, determine the native parasitoid complex and assess parasitism rates. Ecological indices were calculated to assess the diversity of natural enemies. A total of 25 natural enemy species were identified, including 15 parasitoids and 10 predators. Predatory Hemiptera and Parasitoid Hymenoptera were high biodiversity. The parasitism rates vary between 0 and 50% depending on the abundance of pests and parasitoid species. Knowledge of the diversity of natural enemies and the understanding of trophic interactions with pests are important in the development of biological crop protection in order to preserve resilience in agroecosystems.

关键词： Biodiversity Agroecosystem Crop Protection Pests Market Gardening Biological Control

Modified Atomic Orbital Calculations of Energy of the(2s^(2)^(1)S)Ground-State,the(2p^(2)^(1)D);(3d^(2)^(1)G)and(4f^(2)^(1)I)Doubly Excited States of Helium Isoelectronic Sequence from H-to Ca^(18+)

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Journal of Applied Mathematics and Physics 2020年第1期8卷 85-99页

作者： Malick Sow Ibrahima Sakho Boubacar Sow Abdou Diouf Youssou Gning Babou diop Matabara Dieng Abdourahmane Diallo mamadou DiouldéBa Jean KouhissoréBadiane Mamadi Biaye Ahmadou Wagué Department of Physics Atoms Lasers LaboratoryFaculty of Sciences and TechnologiesUniversity Cheikh Anta DiopDakarSenegal Department of Physics UFR Sciences et TechnologiesUniversity of ThièsThièsSenegal UFR SATIC University Alioune DIOP de BambeyBambeySenegal Department of Physics UFR of Sciences and TechnologiesUniversity Assane Seck of ZiguinchorZiguinchorSenegal Department of Physics and Chemistry Faculty of Sciences and Technologies of Training and EducationUniversity Cheikh Anta DiopDakarSenegal

We report in this paper the ground-state energy 2s^(2)^(1)S and total energies of doubly excited states 2p^(2)^(1)D,3d^(2)^(1)D,4f^(2)^(1)I of the Helium isoelectronic sequence from H-to Ca^(18+).Calculations are performed using the Modified Atomic Orbital Theory(MAOT)in the framework of a variational *** purpose of this study required a mathematical development of the Hamiltonian applied to Slater-type wave function[1]combining with Hylleraas-type wave function[2].The study leads to analytical expressions which are carried out under special MAXIMA computational *** first proposed MAOT variational procedure,leads to accurate results in good agreement as well as with available other theoretical results than experimental *** the present work,a new correlated wave function is presented to express analytically the total energies for the 2s21S ground state and each doubly 2p^(2)^(1)D,3d^(2)^(1)D,4f^(2)^(1)I excited states in the He-like *** present accurate data may be a useful guideline for future experimental and theoretical studies in the(nI^(2))systems.

关键词： Modified Atomic Orbital Theory Variational Calculations Correlated Wavefunction Energies Ground-State Doubly Excited States Helium Isoelectronic Sequence Atoms and Ions

Simple and Pseudo Quadratic Leibniz Superalgebras

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Journal of Applied Mathematics and Physics 2023年第9期11卷 2691-2703页

作者： mamadou Pouye Bernardin Kpamegan Leonard Todjihoundé Institut de Mathématiques et de Sciences Physiques (IMSP) Porto Novo Bénin Departement de Mathematiques et Informatique Université Cheikh Anta Diop Dakar Sénégal Département de Mathématiques Université Abomey Calavi Cotonou Bénin

Compactness of subspaces of a Z2-graded vector space is introduced and used to study simple Leibniz superalgebras. We introduce left and right super-invariance of bilinear forms over superalgebras. Pseudo-quadratic Leibniz superalgebras are Leibniz superalgebras endowed with a non degenerate, supersymmetric and super-invariant bilinear form. In this paper, we show that every nondegenerate, supersymmetric and super-invariant bilinear form over a Leibniz superalgebra induce a Lie superalgebra over the underlying vector space. Then by using double extension extended to Leibniz superalgebras, we study pseudo-quadratic Leibniz superalgebras and the induced Lie superalgebras. In particular, we generalize some results on Leibniz algebras to Leibniz superalgebras.

关键词： Leibniz Superalgebras Lie Superalgebras Double Extension Left (Resp. Right) Super-Invariant Bilinear Form

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

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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

Macroscopic Congenital Malformations at the Institute of Nutrition and Child Health (INSE)

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Open Journal of Pediatrics 2023年第6期13卷 879-893页

作者： M’mah Aminata Bangoura Aissata Barry Salimatou Hassimiou Camara Sory Diallo Kadiatou Péthé Diallo Amadou Oury Toure Mariama Sadio Diallo Ouo Ouo Kolié Fatoumata Binta Diallo mous.apha Kouyaté Kaba Bangoura mamadou Aliou Doukouré Emmanuel Camara mamadou mous.apha diop Ibrahima Sory Diallo Institute of Nutrition and Child Health Donka National Hospital-CHU Conakry University of Conakry Conakry Guinea Service of Pediatrics HN Donka-CHU Conakry University of Conakry Conakry Guinea

Introduction: A congenital malformation is defined as a morphological abnormality of an organ or body region resulting from an abnormal developmental process during the formation of the embryo or fetus. Depending on their type, location and size, malformations can cause functional, psychological and aesthetic defects. The aim of this study is to document the frequency of congenital malformations, describe the characteristics of malformed newborns and their biological mothers, and identify the different types of malformations presented by newborns at the INSE. Methods: Descriptive cross-sectional study of clinically visible malformed newborns. It was carried out from January 1, 2021 to January 1, 2022 at the INSE neonatology unit. Epi info version 3.1 software was used for data entry and analysis. Results: Of a total of 2332 neonates hospitalized during the study period, 81 (3.5%) cases had at least one clinically visible congenital malformation. Nearly 84% had an age ≤ 7 days at the time of admission. The male sex was most concerned (60.5%). Newborns referred by a health facility accounted for 84%. Malformations of the digestive system accounted for 30.9% of cases, followed by those of the limbs (19.8%) and poly malformative syndrome (19.8%). Conclusion: This study shows that congenital malformations exist and are frequent in Guinea. Our results could therefore be the starting point for the future establishment of a national register of congenital malformations.

关键词： Congenital Malformation Institute Nutrition Child Heath