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Search Results: 1 - 10 of 176103 matches for " Hasab E. Mohamed "
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Egg Yield and Quality in Laying Hens Fed Diets Containing Black Cumin Seed and/or White Wormwood Leaves
Bakheit A. Yagoub,Ahmed E. Amin,Nabiela M. El Bagir,Ahmed Alhaidary,Hasab E. Mohamed,Anton C. Beynen
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2010.2600.2603
Abstract: Laying hens were fed diets containing either black cumin seed or white wormwood leaves or the combination of the two additives and the effects on egg production and egg quality characteristics were determined. Final body weights were significantly increased in the birds fed the diet with 1% black cumin seed and in those fed the diet with 0.5% of both black cumin seed and white wormwood leaves. Feed intake was numerically lower after the feeding of the diets with 1% white wormwood leaves. Egg production was not significantly influenced by dietary treatment but group-mean egg production was lowered in the hens fed the diet with 1% black cumin seed. Feed conversion efficiency was significantly decreased by the diet containing 1% white wormwood leaves and by the diet with the combination of 1% of black cumin seed and 1% white wormwood leaves. The diet containing 0.5% black cumin seed plus 0.5% white wormwood leaves also significantly decreased feed conversion. Egg weight, shape index, albumen height, Haugh unit, shell thickness and yolk color were not significantly affected by the dietary treatments. The major finding of this study may be that dietary white wormwood improved feed efficiency in laying hens whereas black cumin seed did not.
Serum Protein Levels and Hematological Values in Rats Fed a Diet Containing Black Cumin Seed
Nabiela M. El Bagir,Rania T.H. El Amin,Ahmed Alhaidary,Hasab E. Mohamed,Anton C. Beynen
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2010.2604.2607
Abstract: In this study with rats, the influence of a dietary black cumin seed on both serum proteins and blood cell counts was determined. Rats were fed a diet either without or with 15% black cumin seed for 9 weeks. At the end of the experiment, body weights were similar for the two groups of rats. The diet containing black cumin seed slightly but significantly, lowered the concentration of plasma total proteinsbut did not affect the concentrations of albumin, globulins and hemoglobin. The numbers of white and red blood cells were not affected by black cumin seed in the diet and so was the the composition of white blood cells in terms of neutrophils, lymphocytes and monocytes. After comparing the results of this study with those of studies found in the literature data, it is concluded that black cumin seed has clear effects on serum proteins and blood cells only in rats that are exposed to toxic agents.
Clinical Laboratory Serum Values in Rabbits Fed Diets Containing Black Cumin Seed
Nabiela M. El Bagir,Imtithal T.O. Farah,Ahmed Alhaidary,Hasab E. Mohamed,Anton C. Beynen
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2010.2532.2536
Abstract: Ingestion of black cumin seeds has wide variety of biological effects, implying that different processes in the body are influenced simultaneously. To assess to what extent clinical laboratory serum values are affected, rabbits were fed diets containing different levels of whole black cumin seed and serum was collected at various intervals. The base diet consisted of 60% lucerne and 40% sorghum. To formulate the experimental diets either 10, 15 or 20% of the base diet was replaced by black cumin seed. Body-weight gain was increased by the diets with 10 or 15% black cumin but not by the diet with 20%. Dietary black cumin seed raised serum concentrations of total protein, albumin and globulin but the diet with 20% produced lower values than did the 10 and 15% inclusion levels. Black cumin feeding increased serum urea and creatinine and lowered uric acid concentrations. Serum glucose, total lipid and cholesterol concentrations were lowered by consumption of black cumin. Black cumin seed in the diet did not affect the serum activities of alkaline phosphatase and glutamate pyruvate transaminase. Serum sodium and potassium were not influenced by black cumin but serum calcium and phosphate concentrations were increased. The major finding in this study with rabbits is that the highest dietary level of 20% versus either 10 or 15% black cumin seed lowered serum protein concentrations and diminished weight gain.
Performance of Broiler Chickens Fed Diets Containing Low Inclusion Levels of Black Cumin Seed
Lymia H.A. Majeed,Khadiga A. Abdelati,Nabiela M. El Bagir,Ahmed Alhaidary,Hasab E. Mohamed,Anton C. Beynen
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2010.2725.2728
Abstract: An overview of the literature indicates that lower rather than higher dietary concentrations of black cumin seed may have a positive influence on feed efficiency in broiler chickens. In this study, 4 day old broiler chickens were fed either a diet without or with black cumin seed at inclusion levels of 0.25, 0.50 or 0.75% for a period of 7 weeks. Body weight gain during the 1st, 4th and 7th week of the experiment was significantly decreased by each level of dietary black cumin. The diets containing black cumin seed did not significantly influence weight gain and feed efficiency as measured for the entire experimental period. However, the diets with either 0.25, 0.50 or 0.75% black cumin lowered group-mean weight gain by 4.7, 3.3 and 6.5%, respectively and raised the group-mean feed conversion ratio (g feed/g weight gain) by 3.7, 4.8 and 7.0%. The final weights of breast, thigh and drumstick were not affected by the composition of the diet. It is concluded that dietary black cumin seed may deteriorate feed efficiency in broiler chickens in a dose-dependent relationship. It is unclear why the present observation is opposite to the outcome of various earlier studies of other investigators.
Analysis of urban growth at Cairo, Egypt using remote sensing and GIS  [PDF]
Mohamed E. Hereher
Natural Science (NS) , 2012, DOI: 10.4236/ns.2012.46049
Abstract: The main objective of the present study was to highlight and analyze the exchange between the land cover components at Cairo with focusing on urban area and agricultural land between 1973 and 2006 using Landsat satellite data with the aid of Digital Elevation Models (DEM). The techniques utilized in this investigation involved a rigorous supervised classification of the Landsat and the DEM images. Results showed that urban area of Cairo was 233.78 km2 in 1973 and increased to 557.87 km2 in 2006. The cut-off from agricultural lands was 136.75 km2, whereas urbanization into the neighboring desert was estimated at 187.32 km2 for the same period. The direction of urban sprawl was mainly controlled by regional topography. Urban sprawl was attributed mainly to accelerated population growth.
Can Sitaglipten Attenuate Hypertension, Myocardial Changes and Vascular Reactivity Induced by Long Term Blockade of Nitric Oxide Synthesis in the Rat?  [PDF]
Mervat E. Mohamed
Open Journal of Endocrine and Metabolic Diseases (OJEMD) , 2014, DOI: 10.4236/ojemd.2014.47019

Background: Glucagon-like peptide-1 (GLP-1) is an incretin hormone with insulinotropic properties that regulates glucose metabolism. GLP-1 receptors are the most extensively key modulators of lipid and glucose homeostasis. They are predominantly expressed in adipose tissues, some non adipose tissues including heart, kidney, spleen, and all relevant cells of the vasculature: endothelial cells, smooth muscle cells, and macrophages. The vascular distribution suggests their involvement in the control of cardiovascular function. Objective: The present experiment was designed to study the effect of sitaglipten alone or in combination with captopril on blood pressure, antioxidant enzymes, vascular reactivity and cardiac hypertrophy in NG-nitro-L-arginine methylester (L-NAME) induced hypertension in rats. Methods: One hundred male albino rats weighing from 150 - 200 g were included in this study. Rats were divided into two main groups. Group I, (20 rats) served as a control group for group II, and received 1 ml of physiological saline (0.9%), orally for seven weeks. Group II: hypertensive group, (80 rats) was given daily L-NAME in a dose of 40 mg/kg orally for seven weeks. Rats were further subdivided into A, B, C, and D, each of 20 rats. Group-A, received 1 ml of distilled water daily orally for six weeks, starting one week after L-NAME administration. Groups B, C and D were treated with daily sitaglipten (10 mg/kg b.wt. orally) and captopril (100 mg/kg b.wt. orally), alone or together for six weeks. Blood pressure, serum tumor necrosis factor-α (TNF-α), body weight (BW) and heart weight (HW) were measured. Malondialdehyde (MDA) and reduced glutathione (GSH) were estimated in cardiac tissues. Thoracic aorta was isolated and the aortic rings were allowed to achieve maximal tension by cumulative addition of phenylephrine (PE) (10-9-10-5 M) to the bath solution. Results: Sitaglipten and captopril, alone or together produced significant decreases in blood pressure and TNF-α. Higher oxidative stress

Rheological, Organoleptical and Quality Characteristics of Gluten-Free Rice Cakes Formulated with Sorghum and Germinated Chickpea Flours  [PDF]
Mohamed G. E. Gadallah
Food and Nutrition Sciences (FNS) , 2017, DOI: 10.4236/fns.2017.85037
Abstract: Gluten-free bakery products are produced for people suffering from celiac disease due to sensitivity to gluten. So, the aim of this work was to study the effect of partial substitution of rice flour at 20%, 30% and 40% with sorghum and germinated chickpea flours on rheological, physical, sensory properties and staling rate of prepared gluten-free cake. Obtained results showed that germinated chickpea flour had the highest contents of crude protein (23.62%), lipids (4.89%) and crude fibers (5.76%) as compared to other grain flours. Gradual increase in gelatinization temperature and decrease in maximum viscosity and setback were fond of cake batters with increasing the substituting levels of rice flour from 20% to 40% with sorghum or germinated chickpea flours in comparison to rice flour batter. No significant difference was observed in specific volume between rice cake and cake containing 20% of germinated chickpea and sorghum flours which given 2.71, 2.62 and 2.56 cm3/g, respectively. Data also revealed that gluten-free cake lightness (L*) and total intensity significantly increased with 40% of sorghum flour followed by 30 and 20% of sorghum flour. Substitution of 40% rice flour with germinated chickpea flour resulted in significant high in redness (a*), yellowness (b*) and chroma of gluten-free cake being 11.95, 33.72 and 35.77, respectively followed by substituted levels 30% and 20% which attributed to their natural yellow pigments compared with other investigated samples. Overall acceptability of gluten-free cakes was improved after adding 20, 30% of sorghum flour and 20% of germinated chickpea flour which being 90.7, 88.6 and 87.5, respectively compared to rice flour cake (88.4). Rice flour cake was more freshness than wheat flour cake and other treatments during storage duration. After 6 days, rice cake had significant high freshness (306.2%) followed by gluten-free cake samples with 20% of sorghum or germinated chickpea flours which given 294.5% and 289.4%, respectively. Generally, it could be concluded that the quality and nutritional properties of gluten-free
Mathematical Modelling and Simulation of β-Cell Mass, Insulin and Glucose Dynamics: Effect of Genetic Predisposition to Diabetes  [PDF]
Wiam Boutayeb, Mohamed E. N. Lamlili, Abdesslam Boutayeb, Mohamed Derouich
Journal of Biomedical Science and Engineering (JBiSE) , 2014, DOI: 10.4236/jbise.2014.76035
Abstract: Worldwide, diabetes is affecting 370 million people, causing nearly five million deaths and absorbing more than 471 billion USD per year. Mathematical models have been developed to simulate, analyse and understand the dynamics of β-cells, insulin and glucose. In this paper, we consider the effect of genetic predisposition to diabetes on dynamics of β-cells, glucose and insulin. We assume that the β-cell dynamics is governed by the differential equation: \"\". The model indicates different behaviours according to the presence or absence of genetic predisposition. In presence of predisposition (ε = 1), the model shows three equilibrium points: a stable physiological equilibrium point (G = 100, I = 20, β = 600), a stable trivial pathological equilibrium point (G = 600, I = 0, β = 0) and a saddle point (G = 250, I = 9.8, β = 129.36). In absence of predisposition (ε = 0), the model has only two equilibrium points: an unstable pathological equilibrium point (G = 600, I = 0, β = 0) and a stable physiological equilibrium point (G = 82.6, I = 23, β = 900). In order to see how physical activity, obesity and other factors affect insulin sensitivity, simulations are carried out with different values of insulin induced glucose uptake rate (c), β-cell maximum insulin secretory rate (d) and environmental capacity (K).
Experimental and Numerical Investigation of Desalination Plant Outfalls in Limited Disposal Areas  [PDF]
Mohamed E. Abou-Elhaggag, Mohamed H. El-Gamal, Mohamed I. Farouk
Journal of Environmental Protection (JEP) , 2011, DOI: 10.4236/jep.2011.26094
Abstract: In this study, experimental and numerical investigations of the dense brine jets are conducted for disposal areas of limited extent. First, a new experimental model representing a section of sea floor with a single port brine outfall is built to study different characteristics of dense jets. Second, a number of numerical experiments have been conducted via Fluent CFD package to compare the numerical results with its corresponding physical observations and measurements. Experimental observations are made for both the terminal height of rise of dense jets discharged vertically from circular outlets into calm and homogeneous environment and for concentration profiles along the dense jet trajectory. Various combinations of port diameters and concentration of effluent salinities are investigated to cover a wide range of conditions. The results from the carried out experiments are compared to different available experimental and field observations from the literature. A new model for the terminal height of rise of dense jets has been derived. The experimental observations of concentrations along the dense jet trajectory are analyzed to quantify the mixing patterns for a given operating condition from the source point to the terminal height of rise. The numerical model has been used to identify the penetration depth and also to get the temporal variation of the brine breakthrough curves at different locations above the disposal port. The numerical model has shown the existence of multipeak breakthrough curves for the farest points from the port (but the closest to the water free surface).
Comparative Study of the Moroccan Power Grid Reliability in Presence of Photovoltaic and Wind Generation  [PDF]
Mohamed Oukili, Smail Zouggar, Mohamed Seddik, Taoufik Ouchbel, Fran?ois Vallée, Mohamed El Hafiani
Smart Grid and Renewable Energy (SGRE) , 2013, DOI: 10.4236/sgre.2013.44043
Abstract: The photovoltaic sector in Morocco is a serious option for the future. The integration of this type of energy into the grid has a considerable effect on the adequacy of the grid. The objective of this work is to assess the reliability of the Moroccan power grid at the hierarchical level I (HLI: load coverage under the assumption of infinite node) using a non-sequential Monte Carlo simulation in which photovoltaic generation is introduced. In order to lead such a study, a model was used in order to calculate the hourly solar radiation and to determine the time evolution of the electrical power produced by photovoltaic power plants. Finally, we also compared the impact of both PV and wind generations in terms of adequacy of the Moroccan electrical supply.
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