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Search Results: 1 - 10 of 216205 matches for " Eman N. Ali "
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Impact of Moringa oleifera Cake Residue Application on Waste Water Treatment: A Case Study  [PDF]
N. Ali Eman, C. S. Tan, E. A. Makky
Journal of Water Resource and Protection (JWARP) , 2014, DOI: 10.4236/jwarp.2014.67065

Most of water treatments require higher expenditure. Chemical coagulant requires higher cost and has some drawback after treatment such as pH changes. Moringa oleifera cake residue (MOCR) is one of the alternatives to replace chemical coagulant. A jar test apparatus was used to monitor water treatment. Water quality of Gebeng River (GR) and waste water (WW) was examined before and after treatment. Different parameters using (MOCR) was investigated. Preliminary laboratory results showed the great potential of the (MOCR) to be used in water treatment. MOCR shows an excellent reduction in turbidity (97 % was removed). The bacteria were reduced from 1.7 × 105 to 8 × 103 CFU/ml. Dissolved oxygen (DO) was improved that elevated from 1.06 ± 0.04 to 5.09 ± 0.03 mg/L. However, chemical oxygen demand (COD) and biological oxygen demand (BOD) were increased from 520.5 ± 0.71 to 865.0 ± 2.12 mg/L and from 120.5 ± 2.12 to 270.5 ± 2.12 mg/L respectively. Nevertheless, there is no significant alteration of pH, conductivity, salinity and total dissolved solid (TDS) after treatment. The iron (Fe) was fully removed while copper (Cu) and cadmium (Cd) were successfully removed up to 98%. The reduction of lead (Pb) also achieved 82.17%. Also, (MOCR) can be stored for long time up to 6 months without affecting the biological properties of MO.

Production of Natural Coagulant from Moringa Oleifera Seed for Application in Treatment of Low Turbidity Water  [PDF]
Eman N. Ali, Suleyman A. Muyibi, Hamzah M. Salleh, Md Zahangir Alam, Mohd Ramlan M. Salleh
Journal of Water Resource and Protection (JWARP) , 2010, DOI: 10.4236/jwarp.2010.23030
Abstract: This study focused on developing an efficient and cost effective processing technique for Moringa oleifera seeds to produce natural coagulant for use in drinking water treatment. The produced natural coagulant can be used as an alternative to aluminum sulphate and other coagulants and used worldwide for water treatment. This study investigates processing Moringa oleifera seeds to concentrate the bio-active constituents which have coagulation activity. Moringa oleifera seeds were processed for oil extraction using electro thermal soxhlet. Isolation and purification of bio-active constituents using chromatography technique were used to determine the molecular weight of the bio-active constituents. The molecular weight of bio-active constitu-ents found to be in a low molecular weight range of between 1000 – 6500 Dalton. The proposed method to isolate and purify the bio-active constituents was the cross flow filtration method, which produced the natu-ral coagulant with very simple technique (oil extraction; salt extraction; and microfiltration through 0.45 µm). The turbidity removal was up to 96.23 % using 0.4 mg/L of processed Moringa oleifera seeds to treat low initial turbidity river water between 34-36 Nephelometric Turbidity Units (NTU) without any additives. The microfiltration method is considered to be a practical method which needs no chemicals to be added com-pared to other researchers proposed methods. The natural coagulant produced was used with low dosages to get high turbidity removal which considered to be a breakthrough in this study and recommended to be scaled up for industry level. The product is commercially valuable at the same time it is minimizing the cost of water treatment.
Anterior Mediastinal Fat Changes in Idiopathic Pulmonary Fibrosis: A Preliminary Study  [PDF]
Wafaa Ali Hassan, Eman Abo-Elhamd
Open Journal of Respiratory Diseases (OJRD) , 2014, DOI: 10.4236/ojrd.2014.41003
Background: The mediastinum is composed primarily of fatty tissue that is surrounded by the lungs bilaterally.
There is a lack in the published literature in studying changes in mediastinal fat in idiopathic pulmonary fibrosis
(IPF). The purpose of this study was to determine whether the shape and dimensions of the anterior mediastinal fat in patients with IPF are different from that of a normal control group and to correlate the changes with disease severity. Design and Setting: This prospective case control study was done at the chest department of Assiut University Hospital on IPF patients from May 2010-September 2012. A questionnaire containing questions such as age, sex, clinical findings, high resolution computerized tomography (HRCT) score and pulmonary function tests (PFTs) was filled for patients and normal controls. Results: The IPF retrosternal AP dimension was significantly shorter (p = 0.03) and the transverse dimension was longer (p = 0.001) than that in the normal control group. The convex shape of the anterior mediastinum was predictive of IPF (p = 0.001), whereas concave shape was predictive of normal controls (p = 0.001). The change in anteroposterior diameter (AP) and transverse diameters showed significant correlation with the changes in FVC, DLCO and HRCT score. Conclusions: IPF patients had reduced retrosternal AP and increased transverse dimensions than those of the controls with convex shape of their anterior mediastinal fat. Changes in anterior mediastinal fat dimensions are correlated with lower FVC, DLCO and higher HRCT score. A larger sample size, better multicenteric study is needed to confirm the results of this study.
Emphysema versus Chronic Bronchitis in COPD: Clinical and Radiologic Characteristics  [PDF]
Wafaa Ali Hassan, Eman Abo-Elhamd
Open Journal of Radiology (OJRad) , 2014, DOI: 10.4236/ojrad.2014.42020

Background and Objectives: In clinical practice, spirometry plays a key role in the diagnosis of chronic obstructive pulmonary disease (COPD), however, it provides no information about structural pulmonary abnormality. The aim of this study was to evaluate whether there is a relation between the clinical criteria and chest radiography or CT studies in differentiating chronic bronchitis from emphysema in COPD. Patients and methods: In a prospective study, data analysis on 165 COPD subjects who were enrolled between September, 2011 and December 2012 was completed. Data were collected including clinical characteristics of stable COPD, pulmonary function tests, chest X-ray and multidetector computerized tomography (MDCT) findings. Results: Emphysema was diagnosed in 90 (55%) of 165 CT scans. The median emphysema score was 58 (range 48 - 72) and significantly correlated with lower FEV1 values (r = 0.542, p = 0.003). In chronic bronchitis, bronchial wall thickening was diagnosed approximately as often in chest radiography (56%) as in CT (64%) as a major finding. Body mass index (BMI), forced expiratory volume in the first second (FEV1), and diffusion capacity of the lung for carbon monoxide (DL,CO) were significantly lower, whereas total lung capacity (TLC) was higher in patients with emphysema. Cardiovascular diseases and obstructive sleep apnea syndrome (OSAS) were more common in chronic bronchitis group. Conclusions: Chest radiography is a valuable, inexpensive means of diagnosing emphysema or bronchial wall thickening in chronic bronchitis. Emphysematous patients show a worse pulmonary function and a greater dyspnea. Greater comorbidity in chronic bronchitis may require specific treatment strategies in this subgroup.

Catalyst Free Synthesis of Pyridine-2,6-bis(2-bromo-propane-1,3-dione) and Pyrdine-2,6-bis(N-arylthiazoline-2-thiones)  [PDF]
Korany A. Ali, Mohamed A. Elsayed, Eman Ali Ragab
Green and Sustainable Chemistry (GSC) , 2015, DOI: 10.4236/gsc.2015.51006
Abstract: We have described herein a catalyst-free preparation method of pyridine-2,6-bis(N-alkylthiazoline-2-thiones) (4a-i) by the reaction of primary amines, CS2, and pyridine-2,6-bis(2-bromo-1,3- dicarbonyl) derivatives (2a-c) in water. Also, we have described a catalyst free, green chemistry protocols to monobromination of pyridine-2,6-bis(2-bromo-1,3-dicarbonyl) derivatives with high yield, using NBS as a brominating agent, that led to eco-friendly isolation and purification proce-dures. Furthermore, we have studied the reactivity of pyridine-2,6-bis(2-bromo-1-methyl-pro- pane-1,3-dione) (2a) towards thiourea to afford 2,6-bis(5-benzoyl-2-aminothiazol-4-yl)pyridine (9).
Boswellic acids extract attenuates pulmonary fibrosis induced by bleomycin and oxidative stress from gamma irradiation in rats
Eman Ali, Somaya Mansour
Chinese Medicine , 2011, DOI: 10.1186/1749-8546-6-36
Abstract: Boswellic acid extract (1 g/kg) was force-fed to rats seven days prior to administration of BL or gamma irradiation or both. BL (0.15 U/rat) in 25 μl of 0.9% normal saline (NS) or 0.9% NS alone was administered intratracheally. Rats were exposed to two fractionated doses of gamma irradiation (0.5 Gy/dose/week) with a gamma cell-40 (Cesium-137 irradiation units, Canada) during the last two weeks of the experiment. BA was administered during BL or irradiation treatment or both. After the animals were sacrificed, bronchoalveolar lavage was performed; lungs were weighed and processed separately for biochemical and histological studies.In rats treated with BL, levels of transforming growth factor-β1 (TGF-β1) and tumor necrosis factor-α (TNF-α) were significantly elevated (P = 0.05 and P = 0.005). Hydroxyproline was highly and extensively expressed. Immunoreactive compounds were abundantly expressed, represented in the levels of macrophages infiltrate, accumulation of eosinophils and neutrophils in the lung as well as the aggregation of fibroblasts in the fibrotic area. The levels of lipoxygenase enzyme activity were significantly increased (P = 0.005). Antioxidant activities measured in BL-treated rats deteriorated, coupled with the elevation of both levels of plasma lipid peroxide (LP) content and bronchoalveolar lavage lactate dehydrogenase activity. BA-treated rats had reduced number of macrophages, (P = 0.01), neutrophils in bronchoalveolar lavage (P = 0.01) and protein (P = 0.0001). Moreover, the hydroxyproline content was significantly lowered in BA-treated rats (P = 0.005). BA extract inhibited the TGF-? induced fibrosis (P = 0.01) and 5-LOX activity levels (P = 0.005).Histologically, BA reduced the number of infiltrating cells, ameliorated the destruction of lung architecture and attenuated lung fibrosis.BA attenuates the BL-induced injury response in rats, such as collagen accumulation, airway dysfunction and injury. This study suggests that the blocking of 5-LO
Two-Temperature Generalized Thermoelasticity without Energy Dissipation of Infinite Medium with Spherical Cavity Thermally Excited by Time Exponentially Decaying Laser Pulse  [PDF]
Eman A. N. Al-Lehaibi
Modeling and Numerical Simulation of Material Science (MNSMS) , 2015, DOI: 10.4236/mnsms.2015.54006
Abstract: This work is dealing with two-temperature generalized thermoelasticity without energy dissipation infinite medium with spherical cavity when the surface of this cavity is subjected to laser heating pulse. The closed form solutions for the two types of temperature, strain, and the stress distribution due to time exponentially decaying laser pulse are constructed. The Laplace transformation method is employed when deriving the governing equations. The inversion of Laplace transform will be obtained numerically by using the Riemann-sum approximation method. The results have been presented in figures to show the effect of the time exponentially decaying laser pulse and the two temperature parameter on all the studied fields.
Homotopy Analysis Method for Solving Fuzzy Integro-Differential Equations
Eman Ali Hussain,Ayad W. Ali
Modern Applied Science , 2013, DOI: 10.5539/mas.v7n3p15
Abstract: In this paper, the numerical solution of the linear and nonlinear fuzzy Volterraintegro-differential equations have been investigated using the analytical method namely homotopy analysis method (HAM) and then the proposed method is illustrated by solving two numerical examples. It was found that the HAM provides a simple way to adjust and control the convergence region of solution series by introducing a nonzero auxiliary parameter h.
Outcome of Patients with Placenta Accreta at El Shatby Maternity University Hospital  [PDF]
Eman Ali AbdElfatah, Elsayed Elbadwy Mohamed Awad, Tamer Mamdouh Abd-Eldaym, Zynab Hassan Ali
Open Journal of Obstetrics and Gynecology (OJOG) , 2017, DOI: 10.4236/ojog.2017.77073
Objective: The aim of this study was to determine the incidence, risk factors, and outcomes of management of patients with placenta accreta. Background Placenta accreta occurs when the placental implantation is abnormal. The marked increase in incidence has been attributed to the increasing prevalence of cesarean delivery in recent years. The most common theory is defective decidualization. The most important risk factor for placenta accreta is placenta previa after a prior cesarean delivery. The first clinical manifestation of placenta accreta is usually profuse, life-threatening hemorrhage. The recommended management of suspected placenta accreta is planned preterm cesarean hysterectomy with the placenta left in situ. Patients and methods: It’s a study of all cases of placenta accreta at El-Shatby Maternity University Hospital starting from 1/4/2016 till 1/10/2016. Selection of the cases will only be dependent upon their pregnancy gestational age above 28 weeks of gestation. Results: The incidence of placenta accreta was 1/75 cesarean deliveries. The ultrasonography and doppler had a false negative rate of 54.6% and a sensitivity of 45.2% in diagnosis of placenta accreta. The rate of blood transfusion was 79.6%. Uterine preserving procedures performed in 66%. Cesarean hysterectomy performed in 34%. Intensive care unit admission occurred in 27.3%. The mean gestational age at delivery was 33.8 ± 4.6 weeks’ gestation. 31.8% admitted to the neonatal intensive care unit. Conclusion: The incidence of placenta accreta increased due to the increasing rate of cesarean deliveries, prenatal diagnosis of placenta accreta is paramount, as most women are asymptomatic. Prenatal diagnosis allows time for a multidisciplinary team to make delivery plans, which will help decrease surgical complications.
Vibration of Gold Nano-Beam with Variable Young’s Modulus Due to Thermal Shock  [PDF]
Eman A. N. Al-Lehaibi, Hamdy M. Youssef
World Journal of Nano Science and Engineering (WJNSE) , 2015, DOI: 10.4236/wjnse.2015.54020
Abstract: In this paper, we will study the most important effects in the nano-scale resonator: the coupling effect of temperature and strain rate, and the non-Fourier effect in heat conduction. A solution for the generalized thermoelastic vibration of nano-resonator induced by thermal loading has been developed. The Young’s modulus is taken as a linear function of the reference temperature. The effects of the thermal loading and the reference temperature in all the studied fields have been studied and represented in graphs with some comparisons. The Young’s modulus makes significant effects on all the studied fields where the values of the temperature, the vibration of the deflection, stress, displacement, strain, stress-strain energy increase when the Young’s modulus has taken to be variable.
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