检索结果-南通市图书馆

Primary gastric lymphoma

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2004年第1期10卷 5-11页

作者： AhmadM.Al-Akwaa NeelamSiddiqui ibrahima.Al-Mofleh Gastroenterology Division Neelam SiddiquiOncology DivisionDepartment of MedicineCollege of Medicine and King Khalid University HospitalKing Saud UniversityRiyadhSaudi Arabia

AIM:The purpose of this review is to describe the various aspects of primary gastric lymphoma and the treatment options currently available. METHODS:After a systematic search of Pubmed,Medscape and MDconsult,we reviewed and retrieved literature regarding gastric lymphoma. RESULTS:Primary gastric lymphoma is rare however,the incidence of this malignancy is *** gastritis secondary to Helicobacter pylori (H pylori) infection has been considered a major predisposing factor for MALT lymphoma. Immune histochemical marker studies and molecular biology utilizing polymerase chain reaction have facilitated appropriate diagnosis and abolished the need for diagnostic surgical *** in imaging techniques including Magnetic Resonance Imaging (MRI) and Endoscopic Ultrasonography (EUS) have helped evaluation of tumor extension and invasion. The clinical course and prognosis of this disease is dependent on histopathological sub-type and stage at the time of *** remains regarding the best treatment for early stages of this ***,surgery and combination have been studied and shared almost comparable results with survival rate of 70-90%.However,chemotherapy possesses the advantage of preserving gastric anatomy. Radiotherapy alone has been tried and showed good results. Stage IIIE,IVE disease treatment is solely by chemotherapy and surgical resection has been a remote consideration. CONCLUSION:We conclude that methods of diagnosis and staging of the primary gastric lymphoma have dramatically *** modalities of treatment are many and probably chemotherapy is superior because of high success rate, preservation of stomach and tolerable complications.

关键词： Humans Lymphoma Stomach Neoplasms

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The Lions Roar Again

ChinAfrica 2017年第3期9卷 50-51页

作者： ibrahima Mbodj Frangois Dubé

THE Cameroonian players went wild with joywhen the referee blew the final whistle, ending the match against their Egyptian opponents with an unexpected 2-1 win. Thus ended the 31st edition of the African Cup of Natio... 详细信息

关键词： ACN The Lions Roar Again

Engineers in the Making

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

ChinAfrica 2017年第3期9卷 36-37页

作者： Ge Lijun ibrahima Mbodj

FOR Martine DiengAwa and Seydou KaThierno. two 18-year-old classmates from Kolda Town in south Senegal, the prospect of studying abroad after high school seemed an unimaginable and almost impossible dream. Little did ... 详细信息

关键词： Engineers in the Making

Performance of the Boost Chopper, Comparative Study between PI Control and Neural Control to Regulate Its Output Voltage

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Smart Grid and Renewable Energy 2023年第5期14卷 73-84页

作者： ibrahima Gueye Mamadou Sall Abdoulaye Kebe Laboratoire L3EPI Ecole Superieure Polytechnique Université Cheikh Anta Diop Dakar Senegal

In this study, we investigate the performance of a boost converter regulating its output voltage using two control methods: Proportional-Integral (PI) control and neural control. Both methods are implemented on a simulation platform (Matlab/Simulink) and evaluated in terms of accuracy, response speed, and robustness to disturbances. Indeed, the output voltage of converters exhibits imperfections that require a control method to optimize efficiency when applying a variable load. Results show that neural control offers superior performance in terms of accuracy and response time, with faster and more precise regulation of the output voltage. On the other hand, PI control proves to be more robust against disturbances. These findings can help guide the selection of the appropriate control method for a boost converter based on the specific requirements of each application.

关键词： Chopper PI Control Neural Control

Influence of Types of Fillers on Workability, Bleeding, Compressive Strength, and Degree of Compaction of Hydraulic Concrete

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Materials Sciences and Applications 2021年第6期12卷 276-296页

作者： Mababa Diagne ibrahima Dia Omar Gueye Ecole Supérieure des Mines de la Géologie et de l’Environnement Université Amadou Mahtar MBOW de Dakar Dakar Senegal Institut des Sciences de la Terre Université Cheikh Anta DIOP de Dakar Dakar-Fann Senegal

This study aims to determine the optimal quantity of fillers to add to hydraulic concrete and to assess the influence of these fillers on its rheological characteristics and mechanical properties. The characterization of the aggregates shows that they meet the specifications for the formulation of hydraulic concrete according to the Dreux-Gorisse method. Normalizing the formula to the cubic meter enables to define the standard concrete. The cement content is 350 kg/m3. The mineral materials added to the concrete to increase its characteristics and properties are limestone, basalt, and sandstone fillers with a weight percent of 4%, 5%, and 3% respectively. Changes in concrete properties with the addition of fillers were determined through geotechnical tests. The results obtained show a decrease in the workability measured by slump test which returned 7.8 cm for the standard concrete sample, 7.2 cm with 5% of basalt, 7.3 cm with 4% of limestone, and 6.1 cm with 3% of sandstone. Regarding the bleeding, the results show that it decreases leading to a substantial improvement in stabilization reaching 26% with 5% of basalt fillers, 29% with 4% of limestone fillers, and 31% with 3% of sandstone fillers. The compressive strengths noted Rc28 at 28 days increases compared to that of the standard concrete, which is 31.5 MPa. They increase to 34.3 MPa with 5% of basalt fillers being 8.9%, 36.2 MPa with 4% of limestone fillers being 14.9%, and 36.8 MPa with 3% of sandstone fillers being 16.8%. Finally, the addition of fillers increases the degree of compaction values to 83.62% with 5% of basalt fillers, 84.2% with 4% of limestone fillers, and 84.34% with 3% of sandstone fillers.

关键词： Basalt Limestone Filler Sandstone Hydraulic Concrete

Method of Successive Approximations for a Fluid Structure Interaction Problem

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics 2014年第15期5卷 2299-2304页

作者： Aliou Gueye Sow ibrahima Mbaye Department of Mathematics University of Thies Thies Senegal

In this paper, we present a method for solving coupled problem. This method is mainly based on the successive approximations method. The external force acting on the structure is replaced by λ = p (x1, H + u (x1, λ)). Then we have a nonlinear equation of unknown?λ to solve by successive approximations method. By this method, we obtain easily the analytic expression of the displacement. In addition, good results are obtained with only a few iterations.

关键词： Beam Equation Stokes Equation Finite Elements Method Successive Approximations Method

Obstetric Emergencies: Frequency, Socio-Demographic Aspects and Risk Factors at the Labe Regional Hospital Maternity Unit (Guinea)

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11期13卷 1849-1858页

作者： ibrahima Conté ibrahima Sylla Ousmane Baldé Aboubacar Fodé Momo Soumah Abdourahamane Baldé Oumou Hawa Bah ibrahima Sory Baldé Abdoulaye Bademba Diallo Telly Sy Department of Obstetrics and Gynaecology Ignace Deen National Hospital University Hospital Centre Conakry Guinea Department of Obstetrics and Gynaecology Donka National Hospital University Hospital Centre Conakry Guinea Department of Obstetrics and Gynaecology Labé Regional Hospital Labé Guinea

Introduction: Obstetric emergencies are clinical situations of a serious nature, often dangerous, which develop unexpectedly, threatening the vital prognosis of the mother and/or foetus in the short term. The aim of this study was to contribute to a review of obstetric emergencies at the Labé Regional Hospital maternity unit. Methods: This was a prospective descriptive and analytical study conducted over a period of 6 months in the maternity unit of the Labé Regional Hospital. It concerned all patients admitted to the department for obstetric emergencies. Results: Obstetric emergencies accounted for 20% of obstetric admissions. The mean age of the patients was 25.12 ± 7.15 years, with extremes of 14 and 45 years. The patients were housewives (42.52%), 42.86% did not attend school and 77.41% were from urban areas. The poor were the most numerous (43.52%). The ambulance was the means of transport in only 9% of cases. Acute foetal distress, pre-eclampsia, bony dystocia and post-partum haemorrhage were the most common types of emergency in our series, with frequencies of 27.57%, 22.59%, 17.94% and 10.63% respectively. The risk factors identified were age, origin, gestational age and the state of the maternal pelvis. Conclusion: Obstetric emergencies are frequent in our study site and represent a major concern for patients, providers and the community alike. In order to reduce the frequency of obstetric emergencies, young girls should be enrolled in school, the legal age for marriage should be respected, quality antenatal care should be provided in basic health facilities, and proper planning and spacing of pregnancies should be implemented.

关键词： Obstetric Emergencies Frequency Risk Factors Labé

A retrospective evaluation of the quality of malaria case management at twelve health facilities in four districts in Zambia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2014年第6期4卷 498-504页

作者： Pascalina Chanda-Kapata Emmanuel Chanda Freddie Masaninga Annette Habluetzel Felix Masiye ibrahima Soce Fall Ministry of Health HeadquartersNdeke HouseP.O.Box 30205LusakaZambia Ministry of Health National Malaria Control Centre World Health Organisation WHO Country Office University of Camerino School of Pharmacy University of Zambia Main CampusLusaka.Zambia World Health Organization

Objective:To establish the appropriateness of malaria case management at health facility level in four districts in ***:This study was a retrospective evaluation of the quality of malaria case management at health facilities in four districts conveniently sampled to represent both urban and rural settings in different epidemiological zones and health facility *** review period was from January to December *** sample included twelve lower level health facilities from four *** Pearson Chi-square test was used to identify characteristics which affected the quality of case ***:Out of 4891 suspected malaria cases recorded at the 12 health facilities,more than 80%of the patients had a temperature taken to establish their fever *** 67%(CI_(95)66.1-68.7)were tested for parasitemia by either rapid diagnostic test or microscopy,whereas the remaining22.5%(CI_(95)213.1-23.7)were not subjected to any malaria *** the 2247 malaria cases reported(complicated and uncomplicated),71%were parasitologicaily confirmed while 29%were clinically diagnosed(unconfirmed).About 56%.(CI_(95)53.9-58.1)of the malaria cases reported were treated with artemether-lumefantrine(AL),35%(CI_(95)33.1-37.0)with sulphadoxine-pyrimethamine,8%(CI_(95)6.9-9.2)with quinine and 1%did not receive any *** 30%of patients WHO were found negative for malaria parasites were still prescribed an anti-malarial,contrary to the *** were marked inter-district variations in the proportion of patients in WHOm a diagnostic tool was used,and in the choice of anti-malarials for the treatment of malaria confirmed *** between health worker characteristics and quality of case malaria management showed that nurses performed better than environmental health technicians and clinical officers on the decision whether to use the rapid diagnostic test or ***,in service training on malaria,years of residence in the distr

关键词： Malaria Quality Diagnosis Treatment Antimalarials Microscopy Rapid diagnostic tests Zambia

Petrological and geochemical characteristics of the Ordovician-Silurian black shale in eastern Sichuan and western Hubei,South China:Differential sedimentary responses to tectonism and glaciation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Palaeogeography 2023年第1期12卷 129-152页

作者： Quan-Sheng Cai Ming-Yi Hu Oumar ibrahima Kane Zhi Yang Ya-Ru Wen Qun Luo Ming-Tao Li Zhong-Gui Hu Qing-Jie Deng Cooperative Innovation Center of Unconventional Oil and Gas Yangtze University(Ministry of Education and Hubei Province)Wuhan 430100Hubei ProvinceChina School of Geosciences Yangtze UniversityWuhan 430100Hubei ProvinceChina Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education China University of Geosciences(Wuhan)Wuhan 430074Hubei ProvinceChina Natural Gas Geology Key Laboratory of Sichuan Province Chengdu 610500Sichuan ProvinceChina Research Institute of Petroleum Exploration and Development PetroChinaBeijing 100083China Hubei Geological Survey Wuhan 430034Hubei ProvinceChina Institute of Unconventional Science and Technology China University of Petroleum(Beijing)Beijing 102249China

During the Ordovician-Silurian transition period,the Yangtze area experienced significant environmental changes,which were recorded by the widely distributed black shale of the Upper Ordovician Wufeng and Lower Silurian Longmaxi ***,the petrological and geochemical analyses of the Upper Ordovician-Lower Silurian black shale in Well JY1(eastern Sichuan Basin)and Well YY2(western Hubei Province)drill cores show that there are some significant differences with respect to lithology,thickness,and geochemical characteristics despite the long-term similar variation trend in petrology and *** may suggest some major environmental changes and their differential influence on black shale deposition in the Yangtze *** on the analyses of lithology,total organic carbon(TOC),Mo_(EF),and U_(EF),four long-term sedimentary cycles(one for the Wufeng Formation and three for the Longmaxi Formation)were identified in Well *** Well YY2,only three long-term sedimentary cycles can be recognized(one for the Wufeng Formation and two for the Longmaxi Formation).Different from the gradual increase of the geochemical proxies(such as TOC,MoEF,and NiEF)followed by an abrupt decrease in the Wufeng Formation,these proxies of the Silurian sedimentary cycles in both wells exhibit an abrupt increase at the base followed by a gradual decrease,showing that controlling mechanisms for the Lower Silurian black shale deposition in the study areas were different from those of the Upper Ordovician black ***,the black shale of each Silurian cycle in Well JY1 is much thicker than that in Well *** with the thick silty mudstone developed in Well JY1 during the Rhuddanian-Aeronian transition,there is a stratigraphic gap in Well YY2 except for a thin calcareous dolostone formed in a strongly restricted *** differences indicate that tectonism and glacial eustasy should be the key factors for black shale development,but their influences on the depo

关键词： Ordoviciane-Silurian transition Black shale Sedimentary differences Tectonism Paleoclimate Sea-level change Yangtze area