Al Mansour Soumaila Ali - Academia.edu (original) (raw)

Papers by Al Mansour Soumaila Ali

Multidiszciplináris tudományok, 2021

This study aims to evaluate the effect of wheat flour as a natural and environmentally friendly m... more This study aims to evaluate the effect of wheat flour as a natural and environmentally friendly material on the properties of water-based mud. Recently, many experiments have been conducted with various additives to improve the properties of drilling fluids. The effect of using wheat flour as a new additive to drilling fluid was studied to improve rheological and filtration properties. In the laboratory several samples of water-based mud were prepared, different concentrations of wheat flour from 1 wt% to 7 wt% were added to the mud and tested by using a Fann 35 viscometer, 140 Fann Mud balance, and an API LT-LP filter press. The results showed that adding 7 wt% of wheat flour was the optimal concentration. It was found that the apparent viscosity and yield point increased by 50% and 35%, respectively, when 7 wt% of wheat flour was added to the water-based drilling fluid. Likewise, the fluid loss rate was reduced by 25% when using the same concentration of wheat flour.

Journal of Performance of Constructed Facilities, 2015

Food Chemistry, 2004

... Major ingredients (% w/w) of the 32 recipes and their codes are presented in Table 1. Dishes ... more ... Major ingredients (% w/w) of the 32 recipes and their codes are presented in Table 1. Dishes were coded according to the type and nature of ... V6), six pastries (P1–P6), four sweet dishes (S1–S4), two soup dishes (L1–L2), two sandwich dishes ( SN1–SN2), three kuba dishes (C1 ...

Physical Review, Feb 15, 1963

Reflectance data are presented for Si, Ge, GaP, GaAs, InAs, and InSb in the range of photon energ... more Reflectance data are presented for Si, Ge, GaP, GaAs, InAs, and InSb in the range of photon energies between 1.5 and 25 eV. The real and imaginary parts of the dielectric constant and the function describing the energy loss of fast electrons traversing the materials are deduced from the Kramers-Kronig relations. The results can be described in terms of interband transitions and plasma oscillations. A theory based on the frequency-dependent dielectric constant in the random phase approximation is presented and used to analyze these data above 12 eV, where the oscillator strengths coupling the valence and conduction bands are practically exhausted. The theory predicts and the experiments confirm essentially free electron-like behavior before the onset of d-band excitations and a plasma frequency modiled from that of free electrons due to oscillator strength coupling between valence and d bands and d-band screening effects. These coml&lications are absent in Si. The energy loss functions obtained from optical and characteristic energy loss experiments are also found to be in good agreement. Arguments for interpreting structure in the reflectance curves above 16 eV in terms of d-band excitations are given.

First EAGE Reservoir Characterization and Modelling Workflows for Giant Carbonate Field Developments of the Middle East, 2019

Materials Research Bulletin, 2019

Highlights  Structural transformation for wurtzite BeO under in-plane strain at 16.3%.  Electro... more Highlights  Structural transformation for wurtzite BeO under in-plane strain at 16.3%.  Electronic band structure has transformed from direct to indirect when applying large strain.  Electronic and optical properties of unstrained and strained BeO were investigated.  A considerable anisotropy between the components was found for strained BeO.

Polish Journal of Environmental Studies, 2018

Soil and land contamination by heavy metals has become a serious environmental concern due to its... more Soil and land contamination by heavy metals has become a serious environmental concern due to its potential adverse ecological effects. Although heavy metals occur naturally at low concentrations in soils, they are considered soil contaminants due to their widespread occurrence, as well as their acute and chronic toxicity. The serious effects of heavy metals on soil biochemical properties are well documented [1]. Soil properties, i.e., mud content, organic substances, and pH, mainly affect organic and biochemical properties [2]. Soils contaminated by heavy metals, such as Ni, Zn, Cd, Cu, and Pb have dramatically increased during the

Indian Journal of Radiology and Imaging, 2017

Objective: This study is concerned with clarification of radiological findings that should be add... more Objective: This study is concerned with clarification of radiological findings that should be addressed and reported in patients listed for cochlear implant (CI) operation. These findings may force a surgeon to consider modifications of the surgical approach by a CI surgeon. Materials and Methods: The study was performed from January 2015 to January 2016. It included 50 patients with severe-to-profound sensorineural hearing loss who fulfilled the criteria for CI. Patients underwent CI surgery in the Department of Otolaryngology. All patients underwent preoperative computed tomography (CT) and magnetic resonance imaging (MRI) assessment in the Department of Diagnostic Radiology. Combined examination of the CT and MRI by the radiologist and the surgeon was advocated. Results: Many anatomical variants were observed regarding the pattern of mastoid pneumatization, position of middle cranial fossa dura, sigmoid sinus position jugular bulb position, and the size and position of the mastoi...

Global Economic Observer, May 1, 2014

The article tries to present the place and role played by the Middle East region on the internati... more The article tries to present the place and role played by the Middle East region on the international market of natural gas due to its high potential of production and export. Important gas reserves are not extracted due to poor infrastructure, difficult technical conditions and lack of needed investments. But the main problem which creates great obstacles for the capitalization of gas resources and impedes the countries' development and export is the conflictual situation persisting in the region for many decades. Instead of cooperation one can see a permanent confrontation which seriously harms the social and economic progress, and that is why democratic and responsible regimes are required, with a new vision upon international relations, but also it is needed the economic, financial and technological support of the great powers, in particular of USA and EU, that is essential and extremely beneficial for the future of this region.

The ability of plants to tolerate drought conditions is crucial for plant survival and crop produ... more The ability of plants to tolerate drought conditions is crucial for plant survival and crop production worldwide. The present data confirm previous findings reported existence of a strong relation between abscisic acid (ABA) content and amino acid accumulation as response water stress which is one of the most important defense mechanism activated during water stress in many plant species. Therefore, free amino acids were measured to determine any changes in the metabolite pool in relation to ABA content. The ABA defective mutants of Arabidopsis plants were subjected to leaf dehydration for Arabidopsis on Whatman 3 mm filter paper at room temperature while, tomato mutant plants were subjected to drought stresses for tomato plants by withholding water. To understand the signal transduction mechanisms underlying osmotic stress-regulating gene induction and activation of osmoprotectant free amino acid synthesizing genes, we carried out a genetic screen to isolate Arabidopsis mutants defective in ABA biosynthesis under drought stress conditions. The present results revealed an accumulation of specific free amino acid in water stressed tissues in which majority of free amino acids are increased especially those playing an osmoprotectant role such as proline and glycine. Drought stress related Amino acids contents are significantly reduced in the mutants under water stress condition while they are increased significantly in the wild types plants. The exhibited higher accumulation of other amino acids under stressed condition in the mutant plants suggest that, their expressions are regulated in an ABA independent pathways. In addition, free amino acids content changes during water stress condition suggest their contribution in drought toleration as common compatible osmolytes.

Lecture Notes in Computer Science, 2014

The availability of technology and tools enables the public to participate in the collection, con... more The availability of technology and tools enables the public to participate in the collection, contribution, editing, and usage of geographic information, a domain previously reserved for mapping agencies or companies. The data of Volunteered Geographic Information (VGI) systems, such as OpenStreetMap (OSM), is based on the availability of technology and participation of individuals. However, this combination also implies quality issues related to the data: some of the contributed entities can be assigned to wrong or implausible classes, due to individual interpretation of the submitted data, or due to misunderstanding about available classes. In this paper we propose two methods to check the integrity of VGI data with respect to hierarchical consistency and classification plausibility. These methods are based on constraint checking and machine learning methods. They can be used to check the validity of data during contribution or at a later stage for collaborative manual or automatic data correction.

ISRN Cardiology, 2014

Objectives. The aim of this study was to investigate the occurrence of myocardial injury in criti... more Objectives. The aim of this study was to investigate the occurrence of myocardial injury in critically ill children through assessment of cardiac troponin T levels and whether levels are associated with disease severity and myocardial dysfunction measured by echocardiography.Methods. Over a 6-month period, this case control study included 50 patients admitted to Pediatric Intensive Care Unit of Zagazig University Children’s Hospital. Twenty-five healthy children were included as a control group. Demographic and clinical data including the pediatric index of mortality II score were recorded. Echocardiographic examination was done and level of cardiac troponin T was measured using Elecsys Troponin T STAT Immunoassay.Results. Cardiac troponin T levels were significantly higher in critically ill in comparison to healthy children (median 22 (18–28) pg/mL versus 10 (10-10) pg/mL,P<0.05). Cardiac troponin T levels correlated positively with duration of ventilation as well as with diseas...

Nicotine & Tobacco Research, 2011

Due to the adoption of successful policies and interventions, tobacco use has been on the decline... more Due to the adoption of successful policies and interventions, tobacco use has been on the decline over the past 30 years in most developed societies, especially among adults (Centers for Disease Control and Prevention, 2007; van der Wilk and Jansen, 2005). These successes, however, are still limited in many parts of the world, mainly due to lack of adoption, or enforcement, of tobacco control policies (World Health Organization, 2011). The Eastern Mediterranean region (EMR), consisting mainly of Arab countries, is one region that continues to experience an escalating tobacco epidemic. For example, between 1990 and 1997, cigarette consumption increased 24% in the Middle East, while most other regions did not witness such a trend (Shafey, 2007). The EMR, moreover, is threatened by a reemerging method of tobacco use, namely water-pipe smoking (a.k.a., hookah, shisha, narghile) (Maziak, Ward, Afifi Soweid, & Eissenberg, 2004). A water pipe has a head, a body, a bowl, and a hose with a mouthpiece. The tobacco is filled in a concavity in the head, and a piece of lit charcoal is placed on top of the tobacco. When users inhale through the mouthpiece, air is drawn over the charcoal, becomes heated, and produces smoke as it passes through the tobacco on its way through the water and to the smoker (Shihadeh, 2003). Epidemiological trends in water-pipe smoking are alarming, and what started as a "social" phenomenon in the EMR has become a global phenomenon. Prevalence estimates of waterpipe smoking surpassed those of cigarette smoking among youth in the EMR, and the rest of the world is catching up. According to various estimates, about a quarter of youth in several societies in the EMR are current (past month) water-pipe smokers (Maziak, 2011). These trends are even registering at younger ages, as was demonstrated by the Global Youth Tobacco Survey (GYTS). The GYTS is the most comprehensive global surveillance effort of tobacco use among youth involving more

Journal of Hydrology, 2009

Wetland restoration is often measured by how close the spatial and temporal water level (stage) p... more Wetland restoration is often measured by how close the spatial and temporal water level (stage) patterns are to the pre-drainage conditions. Driven by rainfall, such multivariate conditions are governed by nonstationary, nonlinear, and nonGaussian processes and are often simulated by physically based distributed models which are difficult to run in real time due to extensive data requirements. The objective of this study is to provide the wetland restorationists with a real time rainfall-stage modeling tool of simpler input structure and capability to recognize the wetland system complexity. A dynamic multivariate Nonlinear AutoRegressive network with eXogenous inputs (NARX) combined with Principal Component Analysis (PCA) was developed. An implementation procedure was proposed and an application to Florida Everglade's wetland systems was presented. Inputs to the model are time lagged rainfall, evapotranspiration and previously simulated stages. Data locations, preliminary time lag selection, spatial and temporal nonstationarity are identified through exploratory data analysis. PCA was used to eliminate input variable interdependence and to reduce the problem dimensions by more than 90% while retaining more than 80% of the process variance. A structured approach to select optimal time lags and network parameters was provided. NARX model results were compared to those of the linear Multivariate AutoRegressive model with eXogenous inputs. While one step ahead prediction shows comparable results, recursive prediction by NARX is far more superior to that of the linear model. Also, NARX testing under drastically different climatic conditions from those used in the development demonstrates a very good and robust performance. Driven by net rainfall, NARX exhibited robust stage prediction with an overall Efficiency Coefficient of 88%, Mean Square Error less than 0.004 m 2 , a standard error less than 0.06 m, a bias close to zero and normal probability plots show that the errors are close to normal distributions.

Hearing Research, 1987

The hamster is relatively immature at birth compared with other mammalian species. Because of the... more The hamster is relatively immature at birth compared with other mammalian species. Because of the amount of maturation that occurs postnatally, the development of the peripherat auditory system of the hamster has generated a great deal of intercat. However, indices of the developing functions capabilities of the central auditory system of the hamster are lacking. The following study investigated the ontogeny of brainstem auditory evoked responses (BAERs) to clicks in young hamsters. The general maturational trends noted for other species were found for the hamster. The major peaks of the BAER decrcabe in latency at the same time relative to birth and at the same rate in the hamster as in the cat and rat. Some maturatIona events xuc h as the onset of a recordable BAER. appearance of the late peaks and increase in amplitude of the late peaks occur later, relative to birth. in the hamster than in the other species. Development delays in the hamster make it an attractive model for studying postnatal development of the central auditory system.

Communications of the IBIMA, 2013

For many people, the use of the technology offers opportunities to engage in activities that woul... more For many people, the use of the technology offers opportunities to engage in activities that would otherwise be impossible. However, this potential can only be realised if the technology is designed so that it can support people in achieving their goals. Information access for people with special needs is creating numerous opportunities and challenges within the Information expressway community. A majority of web based information and services are inaccessible to people with certain disabilities, largely due to a lack of awareness of accessibility issues on the part of composers and developers in web engineering. There are many factors that contribute to achieving designs for accessibility, but one important issue is the availability of knowledge about how to design solutions that will take into account users and their diverse characteristics. This research discusses the need for a framework approach to determine the level of accessibility required by people with special needs to access web resources, the results of such an approach should be as meaningful as possible for web applications developers and composers. It is also argued that the current accessibility evaluation approaches are unsatisfactory in the scope and results presentation. This research will outline the groundwork for constructing accessibility aware framework approach where people with distinct needs can access all web applications based on their level of disability. The approach provides guidelines for web developers and composers in the development of accessible web solutions. Blindness and Deafness disability profiles are used as an example to demonstrate the execution of the framework approach and presented implementation architecture.

Canadian Journal of Cardiology, 2006

E osinophilic myocarditis (EM) is a rare, potentially fatal disease if left untreated. The spectr... more E osinophilic myocarditis (EM) is a rare, potentially fatal disease if left untreated. The spectrum of clinical presentation is wide. The present report describes three different clinical presentations of EM. It also demonstrates the response to steroid therapy with complete recovery of ventricular function and the disappearance of inflammatory cell infiltrate in a repeat endomyocardial biopsy (EMB). The incidence, etiology, histopathology, clinical manifestations, diagnosis, treatment and prognosis of EM are discussed. CASE PRESENTATIONS Case 1 A 40-year-old man presented to the emergency department with a history of flu-like illness, fever, malaise and chills, followed by severe nonpleuritic chest pain and shortness of breath. He had a 13-year history of psoriasis treated with topical steroids, phototherapy and intralesional steroids. He was not asthmatic, had no allergies and did not take any regular medications. There was no significant animal or bird exposure history. He was self-employed as a carpet cleaner. On arrival, he was in no acute distress, afebrile, with a heart rate of 90 beats/min and a blood pressure of 85/50 mmHg. A general physical examination was unremarkable except for a psoriatic plaque on the right leg without nail or joint involvement. Cardiovascular examination showed no jugular venous distension, gallops, rubs or murmurs.

CORROSION 2008, 2008

... David L. Miller Faradaic Enterprises, Inc. 11201 Stormy Ridge Road Austin, Texas 78739 USA DL... more ... David L. Miller Faradaic Enterprises, Inc. 11201 Stormy Ridge Road Austin, Texas 78739 USA DLMILLER@REALTIME.NET K. Daniel Efird and Nathan Davis Efird Corrosion International, Inc. 9391 Grogan's Mill Road, Suite A-6 The Woodlands, Texas 77380 USA ...

... Y. Movva; Tim Gregory. Tracking remotely sensed cloud images in time and space. Author(s): Jo... more ... Y. Movva; Tim Gregory. Tracking remotely sensed cloud images in time and space. Author(s): John S. DaPonte; Joseph N. Vitale; Jo Ann Parikh; George Tselioudis. Hierarchical storage and visualization of real-time 3D data. Author(s): Mitchell Parry; Brendan Hannigan; William ...