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Sickle cell cholangiopathy:An endoscopic retrograde cholangiopancreatography evaluation

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World Journal of Gastroenterology 2009年第42期15卷 5316-5320页

作者： Hussain issa Ali Al-Haddad Ahmed Al-Salem Department of Internal Medicine Division of GastroenterologyKing Fahad Specialist HospitalDammam 31444Saudi Arabia Department of Internal Medicine Qatif Central HospitalQatif 31911Saudi Arabia Department of Pediatric Surgery Maternity and Children HospitalDammamQatif 31911Saudi Arabia

AIM:To evaluate the role of endoscopic retrograde cholangiopancreatography(ERCP) in patients with sickle cell disease(SCD) .METHODS:Two hundred and twenty four SCD patients with cholestatic jaundice(CJ) had *** indications for ERCP were based on clinical and biochemical evidence of CJ and ultrasound ***:Two hundred and forty ERCPs were *** indications for ERCP were:CJ only in 79,CJ and dilated bile ducts without stones in 103,and CJ and bile duct stones in *** those with CJ only,ERCP was normal in 42(53.2%) ,and 13(16.5%) had dilated bile ducts without an obstructive *** the remaining 22,there were bile duct stones with or without *** those with CJ,dilated bile ducts and no stones,ERCP was normal in 17(16.5%) ,and 28(27.2%) had dilated bile ducts without an obstructive *** the remaining 58,there were bile ducts stones with or without *** those with CJ and bile duct stones,ERCP was normal in two(4.8%) ,and 14(33.3%) had dilated bile ducts without an obstructive *** the remaining 26,there were bile duct stones with or without ***:Considering the high frequency of biliary sludge and bile duct stones in SCD,endoscopic sphincterotomy might prove helpful in these patients.

关键词： Sickle cell disease Hepatobiliary Cholestsatic jaundice Sickle cell hepatopathy Sickle cell cholangiopathy Endoscopic retrograde cholangiopancreatography

Radiation oncology practice during COVID-19 pandemic in developing countries

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World Journal of Clinical Cases 2021年第25期9卷 7292-7296页

作者： Fawzi Abuhijla Ramiz Abuhijlih issa Mohamad Department of Radiation Oncology King Hussein Cancer CenterAmman 11941Jordan

Radiation therapy(RT)is considered one of the cornerstone modalities of treatment for different cancer *** preparation and delivery of RT requires a number of staff members from different disciplines within the radiation oncology *** the emergence of the corona virus disease 2019(COVID-19)pandemic,RT,similar to other cancer care modalities,has been adapted to minimize patient and staff exposure without compromising the oncological *** was reflected in the dramatic practice changes that occurred in the past year to address the lockdown restrictions and fulfill the infection control *** practices differ across regions based on financial and training levels,and developing countries with limited resources have struggled to maintain radiation treatment services at a level equivalent to that in developed countries while following pandemic control *** response during the COVID-19 pandemic varied between developing countries according to the infection rate and RT technological *** this editorial,we review recently published articles addressing radiotherapy practice reports during the COVID-19 pandemic in developing countries.

关键词： Radiotherapy COVID-19,Developing countries Radiation therapy Pandemic Low income countries

Semiotic Proposition for Understanding Semantics Within Construction Documents

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Tsinghua Science and Technology 2008年第S1期13卷 192-198页

作者： Ivan Mutis Raja R. A. issa Department of Construction Science Texas A & M University College Station School of Building Construction University of Florida

This research develops a methodology that helps actors in understanding information generated from multiple construction participants. It employs semiotic theory which approaches the interpreter’s understanding of the role of the representations used in construction documents to communicate meanings to other participants. This strategy is designed to aid the interpreters’ comprehension of the use of symbols. The symbols within the construction documents are forms of representations that take the form of a visual representation of a set of markers that describe a formal language, and of markers that are used to represent natural language as well as other possible representations, such as a collection of codes for indexing documents. Symbols are replaced by signs under the semiotics theory. The use of symbols as signs is this study’s recognition of the relationship between the interpreter and the material quality of symbols. The semiotic analysis is an examination of the compromise between the meanings of a representation per se and the concept associated with the understanding of such representation.

关键词： semiotics construction representation semantic forms ontology categories

Geochemical characteristics of natural gases and source rocks in Obayied sub-basin,north Western Desert,Egypt:implications for gas-source correlation

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Acta Geochimica 2023年第2期42卷 241-255页

作者： Mostafa Hassan Mahmoud Leila Mohammed Ahmed Ghalib issa Omar Hegab Geology Department Faculty of ScienceMansoura UniversityMansoura 35516Egypt Egyptian General Petroleum Corporation CairoEgypt

Western Desert represents a major oil and gas province in Egypt producing more than 50%of the country’s oil *** and gas blend occurs in most producing fields,however,the genetic link between gas and liquid hydrocarbon phases are not *** sub-basin in the Western Desert where oil and gas phases coexist in the Middle Jurassic sandstones of the Khatatba Formation provides an ideal place to investigate the link between oil and gas *** analyses on rock samples(Rock–Eval pyrolysis,vitrinite reflectance,R_(o))and gases(molecular and isotopic composition)were conducted in order to identify the genetic characteristics of the hydrocarbon phases ***-relevant parameters(Rock–Eval T_(max),vitrinite reflectance R_(o))elucidate that only Middle Jurassic Khatatba organofacies capable of generating wet and dry hydrocarbon ***,the enrichment of C_(7)normal alkanes,mono-branched alkanes relative to polybranched components in the Obayied gases reflect their generation via cracking of *** modelling results confirm gas generation through both primary and secondary ***,secondary cracking of liquid hydrocarbon phases is volumetrically more *** cracking of the Khatatba organofacies likely predate and catalyze the secondary cracking of the liquid phases and therefore the volume of generated gas increases incrementally eastward where both processes *** present study highlights the significant role of secondary cracking in the generation and accumulation of huge gas accumulations in the basins containing oil-prone source intervals.

关键词： Primary and secondary cracking Gas geochemistry Jurassic Khatatba Obayied Western Desert

Analysis of Eigenvalues for Molecular Structures

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Computers, Materials & Continua 2022年第10期73卷 1225-1236页

作者： Muhammad Haroon Aftab Kamel Jebreen Mohammad issa Sowaity Muhammad Hussain Department of Mathematics and Statistics The University of LahoreLahore54000Pakistan Department of Mathematics An-Najah National UniversityNablusP400Palestine Department of Mathematics Palestince Polytechnic UniversityHebronP766Palestine Department of Mathematics Comsats University IslamabadLahore CampusLahore54000Pakistan

In this article,we study different molecular structures such as Polythiophene network,PLY(n)for n=1,2,and 3,Orthosilicate(Nesosilicate)SiO4,Pyrosilicates(Sorosilicates)Si2O7,Chain silicates(Pyroxenes)(SiO3)n,and Cyclic silicates(Ring Silicates)Si3O9 for their cardinalities,chromatic numbers,graph variations,eigenvalues obtained from the adjacency matrices which are square matrices in order and their corresponding characteristics *** convert the general structures of these chemical networks in to mathematical graphical *** transform the molecular structures of these chemical networks which are mentioned above,into a simple and undirected planar graph and sketch them with various techniques of *** matrices obtained from these simple undirected graphs are *** also label the molecular structures by assigning different *** graphs have also been studied for *** a connected graph,the eigenvalue that shows its peak point(largest value)obtained from the adjacency matrix has multiplicity ***,the gap between the largest and its smallest eigenvalues is interlinked with some form of“connectivity measurement of the structural graph”.We also note that the chemical structures,Orthosilicate(Nesosilicate)SiO4,Pyrosilicates(Sorosilicates)Si2O7,Chain silicates(Pyroxenes)(SiO3)n,and Cyclic silicates(Ring Silicates)Si3O9 generally have two same *** matrices have great importance in the field of computer science.

关键词： Vertex degree edges eigenvalues characteristics polynomials adjacency matrices graphical model genetics polythiophene silicates

Non-alcoholic fatty liver disease: a pandemic disease with multisystem burden

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Hepatobiliary Surgery and Nutrition 2018年第5期7卷 389-391页

作者： Somaya Albhaisi Danny issa Naim Alkhouri The Division of Internal Medicine Hepatology and NutritionVirginia Commonwealth UniversityRichmondVAUSA The Division of Gastroenterology Hepatology and NutritionVirginia Commonwealth UniversityRichmondVAUSA The Texas Liver Institute University of Texas(UT)Health San AntonioSan AntonioTXUSA

Non-alcoholic fatty liver disease(NAFLD)is a leading cause of liver-related morbidity and mortality in the United States and globally(1,2).A large body of literature currently exists to suggest at the clinical burden ... 详细信息

关键词： NAFLD mortality liver

Bacteriological Profile of Effusion Fluids Infections at Charles De Gaulle University Pediatric Hospital from 2017 to 2020

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Open Journal of Medical Microbiology 2024年第2期14卷 146-163页

作者： Kambiré Dinanibè Ouédraogo Oumarou Tiendrebéogo Salam Tondé issa Tamboura Mamadou Zida Sylvie Kpoda Dissinviel Sagna Tani Compaoré T. Rebeca Zouré Abdou-Azaque Soubeiga R. Serge Théophile Sawadogo Stanislas Ilboudo Maïmouna Rouamba Hortense Ouédraogo Wenkouni Henri Gautier Ouédraogo-Traoré Rasmata Sanou Mahamoudou Institut de Recherche en Sciences de la Sant Ouagadougou Burkina Faso Centre Hospitalier Universitaire Pdiatrique Charles De Gaulle Ouagadougou Burkina Faso Centre Universitaire de Ziniar Ziniar Burkina Faso Universit Joseph Ki-Zerbo Ouagadougou Burkina Faso Universit Ouaga 3S Ouagadougou Burkina Faso Centre Mdical Urbain de Samandin Ouagadougou Burkina Faso

Introduction: Microbiology of effusion fluids in children in Burkina Faso is characterized by the scarcity of data. This work aimed to study the bacteriological and antibiotics susceptibility profile of bacteria involved in effusion fluid infections in paediatrics in order to improve the choice of probabilistic antibiotics therapy. Methods: A cross-sectional, descriptive study was used in children aged 0 to 15 years from 2017 to 2020 at the Charles De Gaulle Pediatric University Hospital Center (CHUP-CDG) in Ouagadougou. Classical bacteriology methods such as macroscopy, Gram staining, identification galleries and antibiotics susceptibility testing were used. Results: Of 231 samples, 64 bacteria were isolated. The most common bacterial strains of pleural fluid were Staphylococcus aureus (25%) and 40% for Enterobacteriaceae. Of the peritoneal fluid, 77% were Enterobacteriaceae with 57% Escherichia coli;and from joint fluid, 33% were S. aureus and 22% for P. aeruginosa. The overall susceptibility profile showed 29% extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL), 10% methicillin-resistant S. aureus (MRSA), and 8% carbapenemases. Conclusion: Bacteriological profile is characterized by ESBL-producing Enterobacteriaceae and MRSA. The most active antibiotics were macrolides, aminoglycosides, and cefoxitin (methicillin) for Gram-positive cocci, carbapenems, and aminoglycosides for Gram-negative bacilli. Then, the monitoring of antibiotics resistance must be permanent.

关键词： Bacteriological Profile Effusion Fluid Infections

Project Management and Risk Asssessment of Pangatupu Industrial Park Project in Zanzibar-tanzania

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Project Management and Risk Asssessment of Pangatupu Industr...

作者： Mohamed Khamis issa 湖南大学

学位级别：硕士

工业项目一直是非洲许多国家的经济支柱,但为了使该国的工业部门蓬勃发展,需要建立有利的投资环境,例如建设更大的现代化海港和机场,提供可靠的公用事业和其他配套产业实体,如建立有竞争力的现代工业园区,以激励产业投资。但是,这种投... 详细信息

工业项目一直是非洲许多国家的经济支柱,但为了使该国的工业部门蓬勃发展,需要建立有利的投资环境,例如建设更大的现代化海港和机场,提供可靠的公用事业和其他配套产业实体,如建立有竞争力的现代工业园区,以激励产业投资。但是,这种投资规模太大,仅靠政府征税、以政府机构作为项目技术实施主体是难以应对的。因为,这些类型的投资需要大量资金、高技能人才和国家承诺,这就是为什么如果不应用项目管理技术和工具来规划和控制这些项目,就会面临无法实现的高风险。富有成果的国家期望。然而,政府管理下的项目执行不力似乎是桑给巴尔的普遍情况。审计报告显示,大部分政府全额融资项目超预算、超法、超时、亏本经营。尽管政府努力审查它的发展政策并提高其人民的技术技能并用工具和设备促进他的机构,但如果没有适当的项目计划,上述努力不足以避免政府项目失败。本研究旨在评估风险并在Pangatupu工业园区(CPIP)项目建设中应用项目管理工具,该项目是桑给巴尔革命政府(RGo Z)正在进行的项目之一。在这个项目中执行的项目管理应用是工作分解结构(WBS)的准备,其中项目可交付成果被分解为易于执行的工作包,责任矩阵(RM),其中每个项目工作包的责任分配给各自的政府机构,并通过使用Proffhub项目软件,还设计了甘特图。还确定了项目任务之间的关系。此外,在控制CPIP项目的进度过程中,网络图中的关键路径方法(CPM)被应用于通过查找和控制CPIP项目中的最长路径来控制项目时间范围。因为,确定项目的关键路径是在预计时间和预算内成功完成项目的关键。CPIP项目控制进度时间结果表明,该项目可比预计完工时间提前24天完工。最后,通过识别潜在风险及其对项目的影响,对Pangatupu工业园区建设进行风险评估,并提出控制缓解方案。识别出的潜在风险之一是经济风险、建设和收缩现场风险、管理风险、技术风险和政治风险。成功的风险管理导致在预计的时间、预算内并以良好的质量完成了项目。

关键词：工业园区项目管理工作分解结构责任矩阵甘特图项目进度网络图关键路径法风险评估

桥面板与覆层结合界面的干燥收缩诱导应力估算(英文)

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硅酸盐学报 2011年第1期39卷 92-98页

作者： MOHAMMAD A Alhassan MOHSEN A issa Assistant Professor of Civil Engineering Department of EngineeringIndiana-Purdue University Fort Wayne(IPFW) Professor of Civil Engineering Civil and Materials Engineering Department University of Illinois at Chicago

采用三维非线性有限元分析方法评价与估算了桥面板与混凝土覆层间结合界面的干燥收缩诱导应力,并采用修正Fowler准则测算了桥面板与聚合物覆层间的热诱导应力。在评价覆层与面板间相对厚度to/ts的影响时,ts取常数200 mm;在评价相对弹性... 详细信息

采用三维非线性有限元分析方法评价与估算了桥面板与混凝土覆层间结合界面的干燥收缩诱导应力,并采用修正Fowler准则测算了桥面板与聚合物覆层间的热诱导应力。在评价覆层与面板间相对厚度to/ts的影响时,ts取常数200 mm;在评价相对弹性模量Eo/Es的影响时,Es取常数,27.5 GPa,并设定了3个Eo/Es比值,分别是0.5,0.75,1.0。在评价每个Eo/Es比值的影响时,考虑3个to/ts比值,其值分别为0.281,0.375,0.45,并对应3个覆层厚度值,分别为55,75,3.6,90 mm。结果表明:收缩诱导剪切应力与黏结应力随Eo/Es比值及to/ts比值的增加而增加;有限元分析结果与修正Fowler准则测算结果表现出相同的变化趋势,但由前者估算的黏结应力要比由后者估算的高很多。对诱导黏结应力有重要影响或者会导致黏结强度下降的其他因素也进行了深入讨论。

关键词：收缩覆层黏结应力桥面板有限元分析