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您的检索式:作者名="Eman Selim"
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| 1 | Effect of supplementing layer hen diet with phytogenic feed additives on laying performance, egg quality, egg lipid peroxidation and blood biochemical constituents显示文摘This study was conducted to evaluate the effects of supplementing laying hen diet with phytogenic additives on laying performance, egg quality, blood constituents and egg lipid peroxidation. Two hundred Lohmann Brown Lite laying hens were randomly allotted to 4 dietary treatments: control(without phytogenic additive), fennel seeds(5 g/kg), black cumin seeds(5 g/kg) and hot red pepper(5 g/kg).Each of the 4 diets was fed to 5 replicates of 10 hens for 8 weeks. No significant differences were observed in body weight or feed intake between the groups. Dietary inclusion of fennel followed by red pepper improved(P < 0.05) egg weight, egg production, egg mass and feed conversion ratio compared with control. Higher yolk shape index, shell and albumen weight percentages and Haugh unit(P < 0.05)were recorded in the fennel supplemented group compared with control. The egg yolk color score increased by the addition of fennel or hot red pepper in laying hen diets compared with control. The inclusion of black cumin or hot red pepper decreased serum and egg yolk cholesterol and malondialdehyde concentrations(P < 0.05) compared with control. Serum aspartate aminotransferase concentration was lower in black cumin group(P < 0.05) than in other treatments. In conclusion, the best laying performance and egg quality were obtained by dietary inclusion of fennel, followed by hot red pepper and black cumin. Dietary supplementation of black cumin or red pepper may lead to the development of low-cholesterol concentration and better antioxidant capacity of eggs. | Reham Abou-Elkhair Shaimaa Selim Eman Hussein | 2018 | Animal Nutrition2018,,4: | 6 |
| 2 | Hepatocellular carcinoma in Egypt: A single center study over a decade显示文摘AIM: To identify the trend, possible risk factors and any pattern change of hepatocellular carcinoma (HCC) in Egyptover a decade.METHODS: All HCC patients attending Cairo Liver Center between January 1993 and December 2002, were enrolledin the study. Diagnosis of HCC was based on histopath ological examination and/or detection of hepatic focal lesions by two imaging techniques plus α-fetoprotein level above 200 ng/mL. The duration of the study was divided into two periods of 5 years each; period Ⅰ (1993-1997) and period Ⅱ (1998-2002). Trend, demographic features of patients (age, gender, and residence), risk factors (HBsAg,HCV-Ab, schistosomiasis and others) and pattern of the focal lesions were compared between the two periods.Logistic regression model was fitted to calculate the adjusted odds ratios for the potential risk factors. The population attributable risk percentage was calculated to estimate the proportion of HCC attributed to hepatitis B and C viral infections.RESULTS: Over a decade, 1 328 HCC patients out of 22 450 chronic liver disease (CLD) patients were diagnosed with an overall proportion of 5.9%. The annual proportion of HCC showed a significant rising trend from 4.0% in 1993 to 7.2% in 2002 (P = 0.000). A significant increase in male proportion from 82.5% to 87.6% (P = 0.009); M/F from 5:1 to 7:1 and a slight increase of the predominant age group (40-59 years) from 62.6% to 66.8% (P = 0.387)in periods Ⅰ and Ⅱ respectively, reflecting a shift to younger age group. In the bivariate analysis, HCC was significantly higher in rural residents, patients with history of schistosomiasis and/or blood transfusion. Yet, after adjustment, these variables did not have a significant risk for development of HCC. There was a significant decline of HBsAg from 38.6% to 20.5% (P = 0.000), and a slight increase of HCV-Ab from 85.6% to 87.9% in periods Ⅰ and Ⅱ respectively. HBV conferred a higher risk to develop HCC more than HCV in period Ⅰ (OR 1.9 vs 1.6) and period Ⅱ (OR 2.7 vs 2.0), but the relative contribution of HBV for development of HCC declined in period Ⅱ compared to period Ⅰ (PAR% 4.2%, 21.32%). At presentation,diagnostic α-fetoprotein level (≥200 ng/mL) was demonstrated in 15.6% vs28.9% and small HCC (≤3 cm)represented 14.9% vs 22.7% (P = 0.0002) in periods Ⅰ and Ⅱ respectively.CONCLUSION: Over a decade, there was nearly a twofold increase of the proportion of HCC among CLD patients in Egypt with a significant decline of HBV and slight increase of HCV as risk factors. α-Fetoprotein played a limited role in diagnosis of HCC, compared to imaging techniques.Increased detection of small lesions at presentation reflects increased awareness of the condition. | Adbel-Rahman El-Zayadi Hanaa M Badran Eman MF Barakat Mohy El-Deen Attia Sherine Shawky Mostafa K Mohamed Osaima Selim Ahmed Saeid | 2005 | World Journal of Gastroenterology2005,11,33: | 5 |
| 3 | Handling Big Data in Relational Database Management Systems显示文摘Currently, relational database management systems (RDBMSs)face different challenges in application development due to the massive growthof unstructured and semi-structured data. This introduced new DBMS categories, known as not only structured query language (NoSQL) DBMSs, whichdo not adhere to the relational model. The migration from relational databasesto NoSQL databases is challenging due to the data complexity. This study aimsto enhance the storage performance of RDBMSs in handling a variety of data.The paper presents two approaches. The first approach proposes a convenientrepresentation of unstructured data storage. Several extensive experimentswere implemented to assess the efficiency of this approach that could resultin substantial improvements in the RDBMSs storage. The second approachproposes using the JavaScript Object Notation (JSON) format to representmultivalued attributes and many to many (M:N) relationships in relationaldatabases to create a flexible schema and store semi-structured data. Theresults indicate that the proposed approaches outperform similar approachesand improve data storage performance, which helps preserve software stabilityin huge organizations by improving existing software packages whose replacement may be highly costly. | Kamal ElDahshan Eman Selim Ahmed Ismail Ebada Mohamed Abouhawwash Yunyoung Nam Gamal Behery | 2022 | Computers, Materials & Continua2022,,9: | 0 |
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