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Improving the Construction Industry Quality Using the Seven Basic Quality Control Tools 预览
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作者 Mohamed Abdel-Hamid Hanaa Mohamed Abdelhaleem 《矿物质和材料特性和工程(英文)》 2019年第6期412-420,共9页
The organizations used quality tools to develop their processes and gain satisfaction from the customers. The main objective of this study is to develop levels of quality in the construction industry through the use o... The organizations used quality tools to develop their processes and gain satisfaction from the customers. The main objective of this study is to develop levels of quality in the construction industry through the use of the seven basic quality control tools. Such tools are extremely crucial tools which are used worldwide in the industries for continual improvement. The seven basic quality tools are Check Sheet, Histogram, Pareto Chart, Fishbone Diagram, Control Chart, Flowchart and Scatter Diagram. They were implemented in various steps of the process in order to define the problems, measure its impacts, find out its root causes and solve these problems to ensure the production of non-defective items. The study shows how the seven basic tools of quality are very useful and effective in identifying and removal of defects from the manufacturing process. These tools are helpful in every stage of the defect removal process. This study was conducted on Cleopatra Group Company. This company succeeded to serve the public and private projects in the Egyptian construction sectors. 展开更多
关键词 QUALITY IMPROVEMENT SEVEN Basic QUALITY Control TOOLS Construction INDUSTRY
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Conotruncal heart malformations in Egypt: An epidemiological study 预览
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作者 Doa’a A. Saleh Sameera Ezzat +3 位作者 Hala Hamza Mohamed Abdel-Hamid Karen S. Kuehl Christopher A. Loffredo 《流行病学期刊(英文)》 2013年第4期169-176,共8页
Conotruncal malformations of the heart are a major category of birth defects. No previous epidemiological studies on these malformations have been carried out in Egypt;therefore our study aimed to describe association... Conotruncal malformations of the heart are a major category of birth defects. No previous epidemiological studies on these malformations have been carried out in Egypt;therefore our study aimed to describe associations with maternal and infant factors in order to identify possible risk factors. Cases (N = 255) were children up to two years of age whose heart malformations were confirmed by echocardiography;they were enrolled at the Cardiology Department of the Pediatric Hospital of Cairo University. Controls (N = 155) were free of congenital heart malformations, matched to the cases by age, and recruited from outpatients of the same hospital. Mothers of cases (97%) and controls (89%) provided consent to participate in an interview about their medical, familial, and occupational histories. Odds ratios (OR) and exact 95% confidence intervals (CI) assessed the magnitude and statistical significance of case-control differences. Cases were divided into two groups based on the presence of d-transposition of the great arteries (TGA): there were 139 with TGA and 116 with normally-related great arteries (NGA). Maternal diabetes prevalence was elevated in both the TGA (OR = 3.4) and NGA (OR = 5.5) subgroups. Several agricultural factors were associated with increased risk: raising animals (for TGA: OR = 2.4, 95% CI 1.2-4.6), raising poultry (for NGA: OR = 1.8, 95% CI 1.1-3.2), and using chemical rodenticides (for all conotruncal cases: OR = 3.2, 95% CI 1.1-13.2). These results are consistent with previous studies of associations of maternal diabetes and pesticide exposure with conotruncal malformations. Further research is warranted to explore such associations and determine avenues for prevention. 展开更多
关键词 CONGENITAL HEART Disease CARDIOVASCULAR MALFORMATIONS Conotruncal MALFORMATIONS EPIDEMIOLOGY Environmental Factors Diabetes
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Prevalence of occult hepatitis C in egyptian patients with non alcoholic fatty liver disease 预览
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作者 Yasmin Saad Soheir Zakaria +8 位作者 Iman Ramzy Maissa El Raziky Olfat Shaker Wafaa elakel Mohamed Said Mona Noseir Mai El-Daly Mohamed Abdel Hamid Gamal Esmat 《内科学期刊(英文)》 2011年第2期33-37,共5页
This study aim is to assess the prevalence of occult HCV infection among Egyptian patients with non alcoholic fatty liver disease (NAFLD) with elevated AST and ALT, and to correlate presence of occult HCV with severit... This study aim is to assess the prevalence of occult HCV infection among Egyptian patients with non alcoholic fatty liver disease (NAFLD) with elevated AST and ALT, and to correlate presence of occult HCV with severity of liver disease. Patients and Methods: After informed consent 27 patients with elevateed liver enzymes diagnosed as NAFLD were examined for demographic, clinical, laboratory data and Ultrasonography. Liver biopsy was done and tested for HCV RNA in tissue. Genotyping using RFLP analysis of PCR products in the 5’NCR was done for positive cases. Results: HCV RNA in tissue was positive in 11/27 patients (40.7%);genotype was 4a in all positive cases. AST and ALT values showed significantly lower values in occult HCV than the non HCV NAFLD group. Liver biopsy of studied patients showed no significant difference as regard inflammation and fibrosis according to METAVIR score. Conclusions: Occult HCV is highly prevalent among Egyptian NAFLD patients. It seems to induce a mild liver disease. Patients with elevated ALT and negative HCV RNA in sera might be investigated for tissue HCV RNA. Follow up is recommended for the occult HCV patients to monitor progression to overt disease. 展开更多
关键词 GENOTYPE 4 Liver ENZYMES NAFLD OCCULT HCV
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