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Adomian Modification Methods for the Solution of Chebyshev’s Differential Equations

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Applied Mathematics 2023年第8期14卷 512-530页

作者： mariam Al Mazmumy Aishah Alsulami Huda Bakodah Nawal Alzaid Department of Mathematics College of Science University of Jeddah Jeddah Saudi Arabia

The current study examines the important class of Chebyshev’s differential equations via the application of the efficient Adomian Decomposition Method (ADM) and its modifications. We have proved the effectiveness of the employed methods by acquiring exact analytical solutions for the governing equations in most cases;while minimal noisy error terms have been observed in a particular method modification. Above all, the presented approaches have rightly affirmed the exactitude of the available literature. More to the point, the application of this methodology could be extended to examine various forms of high-order differential equations, as approximate exact solutions are rapidly attained with less computation stress.

关键词： ADM Modifications Methods Chebyshev’s Differential Equations IVPs Series Solutions

Enteropathica Acrodermatitis Complicated by Necrotising Fasciitis in an Infant Admitted to the Paediatric Emergency Department of the Gabriel Touré University Hospital

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Open Journal of Pediatrics 2023年第6期13卷 831-837页

作者： Aichata Keita Bory Traoré Adama Dembélé Rokiatou Diarra mariam Diarra Elmouloud M. Cissé mariam Kané Bakary Coulibaly Hawa Konaré Reference Health Center of the Commune VI Bamako Mali Department of Paediatrics CHU Gabriel Touré Bamako Mali Bamako Dermatology Hospital Bamako Mali

Acrodermatitis enteropathica is a rare autosomal recessive genetic disorder characterised by periorificial dermatitis, alopecia and diarrhoea. It is caused by a mutation in the gene that codes for a membrane protein that binds zinc. We report a case in a 7-month-old girl, admitted with altered general condition and scaly, pustular erythematous lesions, initially located in the occipital and cervical regions, and secondarily inguinal and on the knees. Management and outcome in this patient? Genetic assay was not available to confirm this rare genetic disease. A delay in establishing the diagnosis and a disastrous outcome did not save the patient despite the administration of zinc.

关键词： Enteropathica Acrodermatitis Necrotizing Fasciitis Infant

Research on vector-borne diseases: implementation of research communication strategies

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Infectious Diseases of Poverty 2019年第6期8卷 101-106页

作者： Thomas Sealway mariam Otmani del Barrio Bernadette Ramirez Lushomo Communications Cape TownSouth Africa Unit on Vectors Environment and SocietyThe UNICEF/UNDPA/Vorld Bank/WHO Special Programme for Research and Training in Tropical DiseasesWorld Health OrganizationGenevaSwitzerland

Background:Effective communication of research findings on vector-borne diseases in Africa is challenging for a number of *** the experiences of a number of researchers over the life of a project,this article looks for lessons that can be shared with the wider research *** body:Between 2014 and 2017,a set of five inter-disciplinary teams from seven African countries collaborated on a project focusing on vector-borne diseases in the context of climate change.A central objective of this work was to influence policy and programming with relevant research *** article examines how principles of research communication,derived from the literature and current guidelines,can be applied in *** challenges and lessons are highlighted,showing that research communication takes place within difficult constraints and in complex,fluid institutional and political *** processes of communication between policymakers and researchers including stakeholder mapping,defining research communication plans and tailoring communication products are ***:The article concludes that while guidelines and frameworks for research communication are helpful,they should not detract from the ability of local teams to adapt to *** key importance are the relationships and networks of local research teams.

关键词： Research uptake Communication Evidence into action Knowledge translation

Antihyperglycemic and hepatoprotective properties of miracle fruit(Synsepalum dulcificum) compared to aspartame in alloxan-induced diabetic mice

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Journal of Integrative Medicine 2020年第6期18卷 514-521页

作者： Suzan G.Haddad mariam Mohammad Karim Raafat Fatima A.Saleh Department of Medical Laboratory Sciences.Faculty of Health Sciences Beirut Arab UniversityBeirut 115020Lebanon Department of Pharmaceutical Sciences.Faculty of Pharmacy.Beirut Arab University Beirut 115020Lebanon

Objective: This study was undertaken to investigate the antihyperglycemic potential of miracle fruit(MF)as well as its hepatic safety as compared to aspartame in alloxan-induced diabetic ***: MF extracts were prepared and screened for their phytochemical composition using highperformance liquid chromatography(HPLC). Total phenolic, flavonoid and tannin contents and antioxidant potential were also determined. Additionally, MF was evaluated for its sensory attributes. For in vivo work, MF ethanol extract at high(MFH: 500 mg/kg body weight [BW]) and low(MFL: 250 mg/kg BW) doses as well as aspartame were injected intraperitoneally into alloxan-induced diabetic *** glucose levels were determined following acute and subchronic treatment. At the end of the study,animals were sacrificed, serum was collected for biochemical analysis and liver tissues were obtained for histopathological ***: MF ethanol extract contained more flavonoids and tannins, and had higher 1,1-diphenyl-1-picrylhydrazyl radical-scavenging activity(79.61%) compared to MF aqueous extract(P < 0.05). HPLC analysis of MF ethanol extract also revealed the presence of 10 antioxidants with quercetin comprising the major polyphenol. Additionally, sensory analysis of MF showed that its intake is effective in masking undesirable sourness. Subchronic administration of MFH proved amelioration of hyperglycemia in mice as compared to aspartame. Moreover, aspartame treatment significantly elevated(P < 0.05) the level of alanine aminotransferase and had destructive effects on the liver histopathology;however, hepatic architecture was restored by low and high doses of ***: MF is an effective antihyperglycemic with hepatoprotective properties that can be used as a healthier alternative sweetening agent in place of aspartame for sour beverages.

关键词： Miracle fruit Synsepalum dulcificum Aspartame Histopathology Phytochemical analysis Sensory evaluation

The effect of nano-calcium carbonate onβ-glucosidase immobilized by alginate and chitosan

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Green Synthesis and Catalysis 2022年第3期3卷 265-271页

作者： mariam Iqbal Yuefeng Deng Qiaoyue Chen Chengli Yang Yihui Zhu Ziqian Chen Jianjun Wang Kaishun Hu Guanya He Dali Li Department of Bioengineering School of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094China

Nanotechnology has become the most promising domain to boost the efficiency of *** are vital as a green catalyst in many industries,food,pharmaceutical and biomedical,*** immobilization process of the enzyme increases its catalytic *** this research,a novel method is presented to describe the effect of nano-calcium carbonate on the characteristics of immobilizedβ-glucosidase,which was extracted from the Agrocybe *** nano-CaCO_(3)was produced using the eco-friendly natural deep eutectic *** pure nano-CaCO_(3)was observed as vaterite,with a size of about 300 *** nano-calcium carbonate was coated by a natural polymer sodium alginate compound and then adsorbed ***,this obtained composite is cross-linked by the bioactive genipin to immobilize theβ-*** enzyme/protein loading ratio to the supports was 1:4,*** recovery efficiency of immobilizedβ-glucosidase was 89.3%,and immobilization yield was 96.452%.Chitosan-coated nano-CaCO_(3)was used as a carrier for immobilization ofβ-glucosidase to improve its stability and *** addition to stability and reusability,pH tolerance,temperature tolerance,and enzyme kinetics are the significant parameters that illustrate the proficiency of an immobilized *** measured optimal enzymatic reaction conditions for the immobilizedβ-glucosidase were 50℃and pH ***,it has shown noticeable improvements in thermo-stability and pH *** tolerance was observed 50%to the initial activity of the immobilized enzyme even after the 3 h of incubation at 50℃,while pH tolerance was noticed more than 50%and 40%at pH 7 and 8,*** K_(m)and V_(max)values of free and immobilizedβ-glucosidase to 4-nitrophenylβ-D-glucopyranoside were 1.549μmol/L/min,0.346 mmol/L and 0.532μmol/L/min,0.080 mmol/L,*** immobilizedβ-glucosidase retains its storability 80%even after 30 days of storage at 4℃and maintains 93.1%of its residua

关键词： Immobilization Nano-CaCO_(3) Sodium alginate Chitosan Genipin

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电子营销在第三世界国家的发展方法

电子营销在第三世界国家的发展方法

作者： mariam Mourise Saad Ghattas Dawood 北京化工大学

学位级别：硕士

研究电子营销在贫困国家的学者们专注于解决有限基础设施、数字接入差距以及定制挑战等问题。他们的目标是通过解决有限互联网和不稳定电力等常见问题来改进电子营销。他们还努力缩小数字鸿沟,通过增加互联网使用和数字知识,这是数字挑... 详细信息

研究电子营销在贫困国家的学者们专注于解决有限基础设施、数字接入差距以及定制挑战等问题。他们的目标是通过解决有限互联网和不稳定电力等常见问题来改进电子营销。他们还努力缩小数字鸿沟,通过增加互联网使用和数字知识,这是数字挑战结果突显的关键方面,贫困国家面临有限互联网接入和不稳定电力等障碍,使电子营销整合具有挑战性。有效的电子营销涉及量身定制的策略,以适应当地的文化、语言和消费者行为,需要研究各种定制方式。移动营销至关重要,因为在贫困地区,许多人使用手机。研究人员探索制作移动应用程序、使用短信进行营销以及找到经济实惠的电子营销途径,与移动焦点的结果一致。该结果强调了这些国家的电子营销以移动设备为中心,优化的网站和短信营销吸引了主要是移动受众。此外,研究人员积极研究贫困国家成功电子营销的实际案例,通过分析这些案例,他们能够识别有效的策略和所学的经验,为实施与多样化社会经济景观相一致的电子营销实践提供有价值的指导。这种实践方法有助于不断演进对什么奏效和什么不奏效的理解,进一步完善贫困国家的电子营销策略。在扩展电子营销时,遵循规则至关重要,强调与法律相关的伦理和环境关切。研究人员探索与电子营销和电子商务相关的法律,与信任和安全的结果一致。该结果强调了克服有关在线安全和信任的顾虑的重要性,突显了在在线营销策略中建立消费者信任和实施强有力安全措施以取得成功的需求。这些国家的电子营销景观是动态的,研究人员不断适应挑战,力图实现更大的影响。这种动态景观在结果中得到反映,强调了移动设备、社交媒体以及解决信任和安全问题在塑造有效电子营销策略方面的关键作用。

关键词：第三世界国家电子营销网上商店发展

Uncharted Territory: Frequent Relapsing, Steroid Sensitive Secondary Minimal Change Nephrotic Syndrome Cause by Solid Tumor of the Gastro-Esophageal Junction —(Case Presentation and Review of the Literature)

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Open Journal of Nephrology 2023年第1期13卷 13-19页

作者： Awad Magbri mariam El-Magbri Reshma Shamnarine Pablo Abrego Hernandez Marshfield Medical Center Weston USA

We reported a biopsy proved case of minimal change nephrotic syndrome in a 72-year-old patient. The minimal change nephrotic syndrome has been steroid sensitive, but the patient had 7 relapses over a span of 5 years. Each time the dose of steroid is tapered, a relapse of the nephrotic syndrome occurred. Eventually, the patient was complaining of dysphagia and difficulty swallowing. Hospital work-up with barium swallow, endoscopy, and CT of the chest, abdomen and pelvis, revealed a focal stenotic lesion with mild to moderate esophageal dysmotility 7/15/2022. A diagnosis of an ulcerating lesion with biopsy confirmed a neuro-endocrine carcinoma of the gastro-esophageal junction was entertained. The CT of the chest/abdomen/pelvis, 7/19/2022, has shown, an esophageal mass of 5.1 × 5.6 × 7 cm of the gastro-esophageal junction with ulceration. No evidence of spread beyond the esophagus and stomach. The histology revealed a poorly differentiated neuroendocrine tumor of the gastro-esophageal junction. The patient underwent several rounds of chemotherapy, radiation, and surgery culminating in tumor control. His nephrotic syndrome was resolved after the tumor has been controlled by surgery and chemotherapy.

关键词： Frequent Relapsing Nephrotic Syndrome Steroid Sensitive Nephrotic Syndrome Secondary Nephrotic Syndrome Solid Gastro-Intestinal Tumor Minimal Change Nephrotic Syndrome Neuro-Endocrine Tumor of the Gastro-Esophageal Junction Paraneoplastic Glomerulopathy

Efficient Decomposition Shooting Method for Solving Third-Order Boundary Value Problems

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International Journal of Modern Nonlinear Theory and Application 2023年第3期12卷 81-98页

作者： Nawal Al-Zaid Kholoud Alzahrani Huda Bakodah mariam Al-Mazmumy Department of Mathematics Faculty of Science University of Jeddah Jeddah Saudi Arabia

The present paper proposes a mathematical method to numerically treat a class of third-order linear Boundary Value Problems (BVPs). This method is based on the combination of the Adomian Decomposition Method (ADM) and, the modified shooting method. A complete derivation of the proposed method has been provided, in addition to its numerical implementation and, validation via the utilization of the Runge-Kutta method and, other existing methods. The method has been applied to diverse test problems and turned out to perform remarkably. Lastly, the simulated numerical results have been graphically illustrated and, also supported by some absolute error comparison tables.

关键词： Linear Third Order BVPs Shooting Method Adomian Decomposition Method Two-Point Boundary Value Problem

Non-pulmonary involvement in COVID-19:A systemic disease rather than a pure respiratory infection

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World Journal of Clinical Cases 2023年第3期11卷 493-505页

作者： Mohamed El-Kassas Mohamed Alboraie Mohamed Elbadry Reem El Sheemy Mohamed Abdellah Shimaa Afify Ahmad Madkour mariam Zaghloul Abeer Awad Mohamed-Naguib Wifi Amira Al Balakosy Mohamed Eltabbakh Department of Endemic Medicine Faculty of MedicineHelwan UniversityCairo 11731Egypt Department of Internal Medicine Al-Azhar UniversityCairo 11884Egypt Department of Tropical Medicine Minia Faculty of MedicineMinia UniversityMinia 61511Egypt Department of Gastroenterology National Hepatology and Tropical Medicine Research InstituteCairo 11451Egypt Department of Hepatology Gastroenterology and Infectious DiseasesFaculty of MedicineKafrelsheikh UniversityKafrelsheikh 33511Egypt Department of Internal Medicine Hepatogastroenterology UnitKasr Al-Ainy School of MedicineCairo 11451Egypt Department of Tropical Medicine Ain Shams UniversityCairo 11451Egypt

During the early phase of the coronavirus disease 2019(COVID-19)pandemic caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),diagnosis was difficult due to the diversity in symptoms and imaging findings and the variability of disease *** manifestations are reportedly the main clinical presentations of COVID-19 *** are working hard on a myriad of clinical,epidemiological,and biological aspects to better understand SARS-CoV-2 infection,aiming to mitigate the ongoing *** reports have documented the involvement of various body systems and organs apart from the respiratory tract including the gastrointestinal,liver,immune system,renal,and neurological *** involvement will result in diverse presentations related to effects on these *** presentations such as coagulation defects and cutaneous manifestation may also *** with specific comorbidities including obesity,diabetes,and hypertension have increased morbidity and mortality risks with COVID-19.

关键词： COVID-19 Non-pulmonary Extrapulmonary Clinical manifestations Systemic disease