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Journal of Integrative Agriculture 2023年第3期22卷 935-944页

作者： mariama kebbeh DONG Jing-xian HUAN Chen SHEN Shu-ling LIU Yan ZHENG Xiao-lin College of Food Science and Biotechnology Zhejiang Gongshang UniversityHangzhou 310018P.R.China

Mangoes often suffer from low temperature-induced chilling injury (CI) during postharvest cold ***,advanced techniques are crucial and in high demand to solve the chilling stress of mango fruit for a higher *** study addresses chilling stress modulation by investigating the effects of melatonin treatment on CI,proline metabolism,and related gene expressions of ‘Keitt’ mango during cold storage after dipped in 0 (control),0.1 (MT1),and 0.2 mmol L^(-1)(MT2) melatonin solution for 30 *** results revealed that melatonin treatment in MT1 significantly reduced CI development and increased proline content in mango fruit during cold storage compared to the *** changes were along with increases in the activity of critical enzymes as well as the expression of encoding genes involved in proline biosynthesis,such as pyrroline-5-carboxylate synthetase (P5CS),pyrroline-5-carboxylate reductase (P5CR),ornithine D-aminotransferase (OAT),P5CS2,P5CR2,and ***,proline dehydrogenase (PDH) activity and the expression of the PDH3 gene associated with proline dehydrogenation were lower in MT1-treated mangoes than the controlled ***,melatonin treatment has regulated proline metabolism resulting in the accumulation of proline,subsequently contributing to enhancing the chilling tolerance of‘Keitt’mango fruit.

关键词： chilling injury(CI) cold storage mango fruit melatonin proline metabolism

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基于图和小样本学习的改进可微架构搜索方法

基于图和小样本学习的改进可微架构搜索方法

作者： mariama DIALLO 大连理工大学

学位级别：硕士

深度学习在图像识别、语言建模、机器翻译等复杂任务中表现出非常大的优势。然而,手动设计神经网络的架构是一个耗时的过程,需要机器学习专家的知识。对于深度学习领域的初学者来说,很难手工设计给定任务最佳的神经架构。因此,越来越多... 详细信息

深度学习在图像识别、语言建模、机器翻译等复杂任务中表现出非常大的优势。然而,手动设计神经网络的架构是一个耗时的过程,需要机器学习专家的知识。对于深度学习领域的初学者来说,很难手工设计给定任务最佳的神经架构。因此,越来越多的研究人员开始探索神经架构搜索(NAS)的方法。NAS算法已经能够在CIFAR-10、Image Net和Penn Treebank等数据集上自动生成合适的神经架构,并获得良好的效果。尽管NAS算法已经被深入研究,但它们中的大多数仍然依赖于额外的控制器或性能预测。当用于具有新数据集的新任务时,这可能需要适当的结构。DARTS,可微架构搜索使用连续松弛和梯度下降技术解决架构搜索问题。然而,它的主要问题是搜索的加速和优化中过拟合导致的崩溃。这对其性能有很大影响。在本论文中,我们通过解决这两个问题来改进原来的工作。基于DARTS,我们提出了两种算法:i-DARTS和i-DARTS+。一方面,i-DARTS解决了搜索加速的问题。它使用神经消息传递技术的三个子超网进行少样本学习,以加速搜索过程。另一方面,i-DARTS+为了避免崩溃而对i-DARTS进行了扩展,它使用七个子超网在满足标准时提前终止搜索过程,以避免崩溃,它还通过将节点的所有传入边视为一个softmax来解决softmax-local约束。通过进行参数共享和迁移学习技术,我们的方法提高了基于一次性DARTS系统的最终准确性。本论文的主要贡献包括:1)将图神经网络(GNN)添加到DARTS中,能够确保最终生成架构的准确性;2)能够确保所提出的架构有较低的计算复杂度。一方面,为了验证i-DARTS算法的有效性,我们在CIFAR10数据集合乳腺成像数据集DDSM上进行了测试,并比较了性能。另一方面,为了验证i-DARTS+的有效性,我们在pen treebank(PTB)和CIFAR10数据集上进行了测试。此外,我们还验证了它们最好的单元应用于Wikitext2和Image Net数据集的可迁移性。实验和结果表明,i-DARTS+算法比目前最先进的NAS算法更具竞争力。

关键词：神经架构搜索图 CIFAR-10 参数共享迁移学习

Factors determining membership in community-based health insurance in West Africa:a scoping review

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Global Health Research and Policy 2022年第1期7卷 44-60页

作者： Kaba Kanko Conde Aboubacar mariama Camara Manar Jallal Mohamed Khalis Saad Zbiri Vincent De Brouwere International School of Public Health Mohammed VI University of Health SciencesBld Mohammed Taïeb NaciriCommune Hay Hassani82403 Casa-blancaMorocco Laboratory of Public Health Health Economics and Health ManagementMohammed VI University of Health SciencesCasablancaMorocco Knowledge for Health Policies Centre CasablancaMorocco Department of Public Health Institute of Tropical MedicineAntwerpBel-gium School of Tropical Medicine and Global Health University of NagasakiNagasakiJapan

Background:In many low-income countries,households bear most of the health care ***-based health insurance(CBHI)schemes have multiplied since the 1990s in West *** have significantly improved their members’access to health ***,a large proportion of users are reluctant to subscribe to a local *** the major factors affecting membership will be useful for improving CBHI *** objective of this research is to obtain a general overview of existing evidence on the determinants of CBHI membership in West ***:A review of studies reporting on the factors determining membership in CBHI schemes in West Africa was conducted using guidelines developed by the Joanna Briggs *** databases were searched(PubMed,ScienceDirect,Global Health database,Embase,EconLit,***,BDPS,Cochrane database and Google Scholar)for relevant articles available by August 15,2022,with no methodological or linguistic restrictions in electronic databases and grey ***:The initial literature search resulted in 1611 studies,and 10 studies were identified by other *** eliminating duplicates,we reviewed the titles of the remaining 1275 studies and excluded 1080 irrelevant studies based on title and 124 studies based on *** the 71 full texts assessed for eligibility,32 additional papers were excluded(not relevant,outside West Africa,poorly described results)and finally 39 studies were included in the *** that negatively affect CBHI membership include advanced age,low education,low household income,poor quality of care,lack of trust in providers and remoteness,rules considered too strict or inappropriate,low trust in administrators and inadequate information ***:This study shows many lessons to be learned from a variety of countries and initiatives that could make CBHI an effective tool for increasing access to quality health care in order to achieve universal health cover

关键词： Community-based health insurance Mutual health organisations Membership Universal health coverage Health financing West Africa

Global Transmission Dynamics of a Schistosomiasis Model and Its Optimal Control

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Applied Mathematics 2019年第6期10卷 397-418页

作者： Mouhamadou Diaby mariama Sène Abdou Sène Laboratoire d’Analyse Numérique et d’Informatique (LANI) UFR SAT Université Gaston Berger de Saint-Louis Saint-Louis Sénégal UFR AGRO Université Gaston Berger de Saint-Louis Saint-Louis Sénégal LANI P&ocirc le STN MAI (Mathématiques Appliquées et Informatique) Université Virtuelle du SENEGAL Dakar-Fann Sénégal

Drug treatment, snail control, cercariae control, improved sanitation and health education are the effective strategies which are used to control the schistosomiasis. In this paper, we consider a deterministic model for schistosomiasis transmission dynamics in order to explore the role of the several control strategies. The global stability of a schistosomiasis infection model that involves mating structure including male schistosomes, female schistosomes, paired schistosomes and snails is studied by constructing appropriate Lyapunov functions. We derive the basic reproduction number R0 for the deterministic model, and establish that the global dynamics are completely determined by the values of R0. We show that the disease can be eradicated when R0?≤1;otherwise, the system is persistent. In the case where ?R0?>1, we prove the existence, uniqueness and global asymptotic stability of an endemic steady state. Sensitivity analysis and simulations are carried out in order to determine the relative importance of different control strategies for disease transmission and prevalence. Next, optimal control theory is applied to investigate the control strategies for eliminating schistosomiasis using time dependent controls. The characterization of the optimal control is carried out via the Pontryagins Maximum Principle. The simulation results demonstrate that the insecticide is important in the control of schistosomiasis.

关键词： Schistosomiasis Models Nonlinear Dynamical Systems Global Stability Reproduction Number Optimal Control Sensitivity Analysis

培训对员工绩效的影响分析 ——以塞拉利昂公路运输公司为例（SLRTC）

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培训对员工绩效的影响分析 ——以塞拉利昂公路运输公司为例（SLR...

作者： mariama ALIMA KAMARA 河北大学

学位级别：硕士

现代企业的成功越来越取决于其人力资源的效率和有效性。支撑组织成功的一个重要因素是拥有一支蓬勃发展、有能力、能力非凡的员工队伍,他们通过自己的技能、知识和奉献精神成为成功的支柱。本研究深入探讨了塞拉利昂公路运输公司背景... 详细信息

现代企业的成功越来越取决于其人力资源的效率和有效性。支撑组织成功的一个重要因素是拥有一支蓬勃发展、有能力、能力非凡的员工队伍,他们通过自己的技能、知识和奉献精神成为成功的支柱。本研究深入探讨了塞拉利昂公路运输公司背景下人力资源开发举措与组织绩效之间的复杂关系。本文试图严格分析各种关键假设,包括广义培训计划在多个领域提高员工绩效的程度。此外,它旨在观察和量化培训实施的频率和强度对生产力成果指标的影响。这一综合分析将涉及评估在各自行业中表现最佳的组织所影响的整体绩效效率。为了实现这些研究目标,本文采用了定量方法,通过向SLRTC的员工分发结构化问卷来收集数据。这项实证调查的结果揭示了培训和发展活动与员工绩效指标之间的强烈正相关关系,突显了人力资本投资对生产力的巨大影响。该报告强调,企业,特别是物流和运输行业的企业,迫切需要为培训和专业发展活动分配足够的资源,这些活动经过精心调整,以符合其业务的具体目标。此外,该研究强调了管理决策在设计和实施有效培训计划方面的重要作用。它表明,如果没有由各级所有者、董事和管理人员带头的战略方法,组织将缺乏从这些举措中获得最佳利益所需的实际行动步骤。最终,这项研究为实地工作做出了宝贵贡献,它将培训和组织效能作为在塞拉利昂公路运输公司动态环境中运作的相互支持的合作伙伴。这些发现对人力资源管理实践具有重要意义,并突出了未来研究工作的途径。研究结果揭示了培训和发展活动、绩效改进和组织成功之间的紧密联系。它描述了商业实体的不可或缺的因素,特别是在物流和运输方面,为与其职责相近的培训项目分配足够的资源。首先,该研究支持管理者是培训项目产出的关键决定因素。本文讨论了培训与组织绩效之间的联系,提出了一个涵盖SLRTC案例研究的战略性人力资源开发模型。通过这种方式,公司可以同时处理两个方面;培训举措和组织成功率的提高将紧密结合在一起,带来高质量的工作环境和实质性的成长和发展。

关键词：培训发展组织绩效塞拉利昂公路运输公司(SLRTC) 塞拉利昂政府人力资源-人力资源公司巴士-CB

The Importance of Uterine Tumors in the Day-to-Day Practice of the General Surgery Department of Ignace Deen National Hospital

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Open Journal of Obstetrics and Gynecology 2024年第7期14卷 1003-1009页

作者： Mamadou Sakoba Barry mariama Camara Aissatou Taran Diallo Aboubacar Touré General Surgery Department Ignace Deen National Hospital/Conakry University Hospital Conakry Guinea Faculty of Health Sciences and Technology Gamal Abdel Nasser University of Conakry Conakry Guinea

Introduction: Uterine tumors are all abnormal cell proliferations developed at the expense of one or more tissue types, which may be located in any uterine segment and have anatomopathological characteristics of benignity or malignancy. The aim of this study was to report on the management of uterine tumors in the general surgery department of Ignace Deen Hospital in Conakry. Methodology: This was a retrospective study lasting five (5) years, from January 1, 2011 to December 31, 2015: All complete records of patients with the diagnosis of a uterine tumor managed in the department were included. Our results are presented in tables and figures. Results: 3200 patients underwent surgery. Among them, 82 cases concerned uterine tumors, i.e. 2% of the department’s overall activity. The average age of our patients was 38.5 years, with extremes of 18 and 59 years. The age group most affected was 41 - 50, with a rate of 39.02%. Housewives and married civil servants were the socio-professional strata most affected, with a predominance of married women. We estimated an increasing proportion of patients admitted to the department during the study period, proving that our study site plays a significant role in the management of uterine tumors. Conclusion: The management of uterine tumors is a major public health problem. Information, communication and education of all socio-professional groups seem necessary.

关键词： Uterine Tumors Management Conakry University Hospital

Response Surface Methodology as an Approach for Optimization of Vinegar Fermentation Conditions Using Three Different Thermotolerant Acetic Acid Bacteria

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Food and Nutrition Sciences 2023年第7期14卷 638-656页

作者： mariama Ciré Kourouma Malick Mbengue Abdoulaye Thioye Coumba Touré Kane Laboratoire de Microbiologie Appliquée et de Génie Industriel (MAGI) Ecole Supérieure Polytechnique (ESP) Université Cheikh-Anta-Diop Dakar Senegal Department of Molecular Biology Institute for Health Research Epidemiological Surveillance and Training (IRESSEF) Dakar Senegal

This study aimed to investigate optimal fermentation conditions of biological acetic acid fermentation for vinegar production. Optimization was performed on 3 acetic acid bacteria strains namely VMA1, VMA7 and VMAO using Response Surface Methodology (RSM). A Box-Behnken-Design (BBD) was achieved with three different independent process parameters involving: fermentation temperature, original alcohol concentration and original acetic acid concentration and one dependent variable (acetic acid yield). The results showed that the mathematical models describe correctly the relationship between responses and factors (F values of the models (p R2 (coefficient of correlation) respectively 0.96, 0.94, 0.98, and adjusted R2 0.95, 0.92, 0.98). The maximum acidity was obtained respectively at fermentation temperatures, original alcohol concentrations and original acetic acid concentrations ranging from [37.5°C - 45°C], [16% - 20% (v/v)], [1.5% - 2% (w/v)] for VMA1, [40°C - 45°C], [14.5% - 20% (v/v)], [1.7% - 2% (w/v)] for VMA7 and [42°C - 45°C], [17% - 20% (v/v)], [1.5% - 2% (w/v)] for VMAO. The use of these acetic strains in the production of vinegar may seriously lead to a decrease or even an ablation of the costs related to the cooling of bioreactors especially in warm and hot countries, in the context of global warming.

关键词： Vinegar Response Surface Methodology Box-Behnken-Design Optimization

Vulvectomy: Indications and Results in the General Surgery Department of the Ignace Deen Chu Hospital in Conakry

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Open Journal of Obstetrics and Gynecology 2024年第4期14卷 560-564页

作者： Camara mariama Barry Mamadou Sakoba Yattara Abdoulaye Touré Aboubacar Department of General Surgery H&#244pital National Ignace Deen Conakry Guinea Faculty of Health Sciences and Technology Gamal Abdel Nasser University of Conakry Conakry Guinea

Introduction: The aim of this study was to report the indications and evaluate the results of vulvectomy in the general surgery department of Ignace Deen Hospital, CHU Conakry. Materials and Methods: This was a retrospective descriptive study, conducted over a period of five (05) years from January 1, 2018 to December 31, 2022, in the general surgery department of Ignace Deen Hospital, CHU Conakry. We included in our study all patient records in whom vulvectomy was performed. Results: We recorded 15 cases of vulvectomy out of 453 perineal surgeries, i.e. 3.31%, with a mean age of 43.56 years and extremes of 35 and 69 years. Vulvar cancer was the most common diagnosis (46.67%), followed by Buschke-Lowenstein (33.33%) and anal canal cancer extending to the vulva (20%). Six patients had undergone biopsy (40%). Vulvectomy with lymph node dissection was performed in only 9 patients (60%), and all surgical specimens were sent to anatomical pathology (100%). Conclusion: Vulvectomy is a surgical technique most often indicated for the treatment of vulvar cancer.

关键词： Vulvectomy Indications Results Ignace Deen Conakry University Hospital

Epidemiological, Clinical and Therapeutic Aspects of Arterial Hypertension at the General Medicine Department of Nzerekore Regional Hospital

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World Journal of Cardiovascular Diseases 2021年第11期11卷 533-538页

作者： Beavogui mariama Balde Elhadj Yaya Doumbouya Idrissa Barry Ibrahima Sory Samoura Aly Camara Abdoulaye Bah Mamadou Bassirou mariama Sylla Ibrahima Sory Balde Mamadou Dadhi Bah Abdoul Mazid mariama Kone Alpha Balde Mamadou Aliou Conde Mamady Cardiology Department Ignace Deen National Hospital Conakry Guinea Department of Neurology Ignace Deen National Hospital Conakry Guinea Cardiology Department Donka National Hospital Conakry Guinea

Introduction: High blood pressure is a public health problem in Guinea as well as everywhere in Africa. The objective of our study was to assess the epidemiological, clinical and therapeutic aspects of High blood pressure in the general medicine department of the Nzérékoré regional hospital. Methodology:This was a prospective study of a descriptive type, lasting 06 months, from July 1 to December 31, 2014. Results: We recorded 156 cases of High blood pressure among a total of 570 patients, for a hospital frequency of 27%. The 56 - 65 age group was the most affected, at 29.4%, with a predominance of men (sex ratio: 1.5). Alcoholism was the most common cardiovascular risk factor with a frequency of 51.2%, smoking and physical inactivity were found in 35.8% and 30.7% respectively;psychosocial stress was found in 24.3% of patients. The clinic was dominated by headache (100%) and dizziness (57.6%). All our patients were subjected to a healthy diet. Fixed dual therapy was the most widely used treatment regimen, i.e. 91 patients (58.3%) and included a diuretic in 37.1% of cases, a calcium channel blocker in 25% of cases and an ACE inhibitor in 24.3%. Conclusion: This study revealed a high frequency of hypertension in the general medicine department of the regional hospital of N’zérékoré.

关键词： Epidemiology Clinical Therapeutic Hypertension

Soldiers’ Hypertension Prevalence in Military Garrisons in the City of Conakry

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Open Journal of Nephrology 2016年第4期6卷 132-137页

作者： Alpha Oumar Bah Mamadou Foinké Bah Fatoumata Binta Fofana mariama Beavogui Departement of Nephrology Donka National Hospital Conakry Guinea Departement of Armies’ Health Conakry Guinea Departement of Cardiology Ignace Deen National Hospital Conakry Guinea

High blood pressure (HBP) is a public health problem worldwide. The objective of this study is to determine the prevalence of hypertension in military garrisons in Conakry, the capital. Material and Methods: The study was done in military garrisons. The data concern 1025 soldiers. This prospective and cross-sectional study took place from 13 November 2014 to 13 February 2015. Only the military who had agreed to participate in the study were included. Sociodemographic, clinical data and urine dipsticks were collected. Results: Among 1025 soldiers, 222 cases of HPB were observed, that was 21.66%. They were 193 men (86.94%) and 29 women (13.06%). The mean age was 46.05 years (range: 18 - 77 years). HPB cases were discovered in 155 soldiers (69.82%) in random observations. Following the grade of hypertension: 124 were of grade I, 62 of grade II, 35 of grade III and 1 case of isolated systolic hypertension was identified. Urinary dipstick tests showed that, 3 patients had proteinuria, 26 patients suffered from leucocyturia, 11 patients suffered from glycosuria and 1 case of hematuria was also identified. More than half of the soldiers (41%) were in the army. Officers were strongly affected (80.18%), followed by non-commissioned officers (17.12%) and finally enlisted men (2.70%). Risk factors were multiple: 78.82% ate very salty food;emotional stress;physical inactivity was observed in over half of the cases. Conclusion: This study gives an overall picture of the prevalence of hypertension in the military in Guinea. The discovery of the symptom lies on the systematic measurement of blood pressure.

关键词： High Blood Pressure Military Prevalence Conakry