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A Survey of SQL Injection Attack Detection and Prevention

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Journal of Computer and Communications 2014年第8期2卷 1-9页

作者： Khaled Elshazly Yasser fouad mohamed Saleh Adel Sewisy Assistant Professor Head of Department of Mathematics Faculty of Science Suez University Suez Egypt Demonstrator of Computer Science Information System Institute Suez Egypt Lecturer of Computer Science Faculty of Science Suez University Suez Egypt Professor of Computer Science Faculty of Computers & Information Assiut University Assiut Egypt

Structured Query Language Injection Attack (SQLIA) is the most exposed to attack on the Internet. From this attack, the attacker can take control of the database therefore be able to interpolate the data from the database server for the website. Hence, the big challenge became to secure such website against attack via the Internet. We have presented different types of attack methods and prevention techniques of SQLIA which were used to aid the design and implementation of our model. In the paper, work is separated into two parts. The first aims to put SQLIA into perspective by outlining some of the materials and researches that have already been completed. The section suggesting methods of mitigating SQLIA aims to clarify some misconceptions about SQLIA prevention and provides some useful tips to software developers and database administrators. The second details the creation of a filtering proxy server used to prevent a SQL injection attack and analyses the performance impact of the filtering process on web application.

关键词： SQL Injection Database Security Attack Authentication

Hepatic and gastrointestinal disturbances in Egyptian patients infected with coronavirus disease 2019: A multicentre cohort study

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World Journal of Gastroenterology 2021年第40期27卷 6951-6966页

作者： Hend Ibrahim Shousha Shimaa Afify Rabab Maher Noha Asem Eman fouad Ehab F Mostafa Mohammed A Medhat Amr Abdalazeem Hazem Elmorsy Miriam M Aziz Rateba S Mohammed mohamed Ibrahem Hassan Elgarem Dalia Omran mohamed Hassany Bassem Elsayed Ahmed Y Abdelaziz mohamed El Kassas Endemic Medicine Faculty of MedicineCairo UniversityCairo 11562Egypt Gastroenterology Department National Hepatology&Tropical Medicine Research InstituteCairo 11563Egypt Hepatology Department Students HospitalCairo UniversityGiza 12566Egypt The Public Health Department Faculty of MedicineCairo UniversityCairo 11562Egypt Egyptian Ministry of Health and PopulationCairo 11567Egypt Department of Tropical Medicine and Gastroenterology Faculty of MedicineAssiut UniversityAssiut 15655Egypt Endemic Medicine Department Faculty of MedicineHelwan UniversityCairo 13544Egypt Internal Medicine 15 Mayo Smart HospitalMinistry of Health and PopulationCairo 13488Egypt Pediatrics Department Faculty of MedicineCairo UniversityCairo 11562Egypt Occupational and Environmental Medicine Department Faculty of MedicineCairo UniversityCairo 11562Egypt Clinical Biochemistry Department Faculty of medicineCairo UniversityCairo 11562Egypt Endemic Medicine Department Faculty of MedicineCairo UniversityCairo 11562Egypt Urology Department Cairo UniversityCairo 11562Egypt

BACKGROUND Various liver and gastrointestinal involvements occur in patients with coronavirus disease 2019(COVID-19)at variable *** studies report mild liver function disturbances correlated with COVID-19 severity,though liver failure is *** To study liver and gastrointestinal dysfunctions in Egyptian patients with COVID-19 and their relation to disease outcomes METHODS This multicentre cohort study was conducted on 547 Egyptian patients from April 15,2020 to July 29,*** polymerase chain reaction-confirmed COVID-19 cases were included from four quarantine hospitals affiliated to the Egyptian ministry of *** information,laboratory characteristics,treatments,fibrosis-4(FIB-4)index,COVID-19 severity,and outcomes were recorded and compared according to the degree of liver enzyme elevation and the presence of gastrointestinal ***-ups were conducted until discharge or *** analyses were performed to determine the independent factors affecting *** This study included 547 patients,of whom 53(9.68%)died during hospitalization and 1 was discharged upon his ***’mean age was 45.04±17.61 years,and 21.98%had severe or critical *** aminotransferase(ALT)and aspartate aminotransferase(AST)were available for 430 and 428 patients,*** total,26%and 32%of patients had elevated ALT and AST,*** liver injury with ALT or AST elevation exceeding 3-fold was recorded in 21(4.91%)and 16(3.73%)patients,*** gender,smoking,hypertension,chronic hepatitis C,and lung involvement were associated with elevated AST or *** was elevated in 50%of patients over ***-4 was significantly higher in patients admitted to the intensive care unit(ICU),those with more severe COVID-19,and *** independent variables affecting outcome were supplementary vitamin C intake(1 g daily capsules)[odds ratio(OR):0.05,95%confidence interval(CI

关键词： COVID-19 Egypt Liver injury Gastrointestinal symptoms Fibrosis-4 Liver enzymes

Gravimetric Study of Geological Structures of Teboursouk Area, Northern Tunisia

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International Journal of Geosciences 2012年第4期3卷 675-682页

作者： Amira Ayed-Khaled Taher Zouaghi mohamed Ghanmi fouad Zargouni Université de Carthage Université Tunis El Manar

Gravity data associated with surface geology in the Northern Tunisian Atlas offer better understand to the underlying structures in Teboursouk area and to highlight other deep or unknown structures in surface. The gravity study was based on qualitative and quantitative analysis including the construction of the gravity Bouguer anomaly, upward continuations, residual anomaly, and Horizontal gradient maxima maps. The main results display many positive and negative anomalies as the response of geological structures (J. Cheid Triassic structure, Khalled plain, El Aroussa plain). In addition, the horizontal gradient maxima integrated with geological and structural maps let the identification of major directions of gravimetric lineaments in the study area us NE-SW trending features at the boundaries of J. Cheid structure, NW-SE direction that limit Gaafour plain and Tabet Ech Cherif syncline, and N-S trending that bordered El Aroussa basin. Major results allowed the construction of a new structural map of the study zone.

关键词： Gravimetry Bouguer Anomaly Upward Continuations Gradient Structure Northern Tunisia

Paleogeographic Reconstitution and Tangential Tectonic in the Backland of Tunisian Dorsal (Fahs Area: J. Rouas and Ruissate)

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International Journal of Geosciences 2016年第3期7卷 239-248页

作者： Aymen Arfaoui Kais Aridhi Sabri Aridhi mohamed Ghanmi fouad Zargouni Service Géologique Office National des Mines (ONM) Tunis Tunisie Unité de Recherche Géomantique Géologie Structurale et Appliquée Faculté des Sciences de Tunis Université Tunis-El Manar Campus Universitaire Tunis Tunisie Entreprise Tunisienne d’Activités Pétrolière (ETAP) Tunis Tunisie

The Tunisian Dorsal backland is the Eastern Atlas side of maghrebides. Field data of Fahs area allowed us to develop new interpretations and to characterize the main structural features of the studied devices (Jebel Rouas and Ruissate). Heritage of Zaghouan accident, Triassic salt movements and strike-direction of major synsedimentary faults are the principal causes and results of the skinned and superimposed geometric architecture, generated by the reversed extensional (Jurassic-Cretaceous) tectonics. The actual geometry of Jebel Rouas and Ruissate represents a fault propagation fold, affecting Jurassic and Cretaceous sets. The backland of this thrust fault defines an imbrications structures of Barremian series. Tectonic records activities show the existence of angular unconformities (Oligocene and Eocene series on the Cretaceous sets considered as bedrock), slumps, tectonic breccias and synsedimentary faults are all of them controlled by a deep major accident;N-S to NE-SW and NW-SE. Features of the study area are probably related first;to the blockage of Zaghouan thrust oriented NE-SW in the foreland;then, to the intense halokinetic activity, which facilitates the layers displacement acting as decollment level. The detailed structural and stratigraphic study of Fahs area and its neighbors shows the presence of an intense tangential tectonic during upper Miocene, affecting Meso-Cenozoic sets, because all the structures involved are sealed by Oligocene and Miocene thinned series. This is accentuated by the existence of different sets of decollment at different depths, which are represented by a displacement to the SE through the backland of the Tunisian Dorsal. We define these features as an imbrication and thrusting Out of sequence system.

关键词： Tunisian Dorsal Backland Paleogeographic Reconstitution Unconformities Synsedimentary Faults Thrust Tectonic Decollement Level Ramp Folds Fault Propagation Fold

Neutrophil to Lymphocyte Ratio in Acute Ischemic Stroke

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Neuroscience & Medicine 2020年第2期11卷 52-62页

作者： Menat-Allah mohamed Lashin Salma Hamed Khalil Taha Kamel Alloush Sherif Anis mohamed Mahmoud fouad Department of Neurology Faculty of Medicine Ain Shams University Cairo Egypt Department of Anesthesia Faculty of Medicine Ain Shams University Cairo Egypt

Introduction: The neutrophil to lymphocyte ratio (NLR) can be used as a marker of subclinical inflammation, and may have a predictive power in prognosis and severity of atherosclerosis-related diseases. This study aimed to assess an association between the NLR, and clinical characteristics and one-month outcome in acute ischemic stroke (AIS). Subjects and Methods: This case-control observational prospective study included 75 patients admitted to stroke unit of Ain Shams University hospitals with AIS, sub grouped into 3 equal groups according to subtype of AIS, in addition to 25 healthy individuals. The demographic characteristics of the patients, complete blood picture test results at presentation, National Institutes of Health Stroke Scale (NIHSS) scores and modified Rankin Scale (mRS) scores were recorded. The clinical outcome was assessed by the NIHSS and mRS scores after one month. Results: The total leucocyte count was significantly higher in large artery atherosclerosis (P = 0.004) and cardioembolic (P = 0.020) stroke groups, unlike lacunar stroke group (P = 0.082), when compared to controls. The neutrophils count was higher (P Conclusion: NLR was significantly higher among AIS subtypes compared to controls, but not a good predictor for one month outcome.

关键词： Neutrophil to Lymphocyte Ratio Acute Ischemic Stroke

Effect of vitamin A and E on carbohydrate and lipid metabolism in diet-induced obese wistar rats

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Advances in Bioscience and Biotechnology 2014年第1期5卷 4-11页

作者： mohamed mohamed Soliman mohamed mohamed Ahmed Samir Ahmed El-Shazly Tamer Ahmed Ismail Hossam fouad Attia Ahmed Farag Elkirdasy Department of Biochemistry College of Veterinary Medicine University of Sadat City Sadat City Egypt Department of Biomedical Sciences Shaqraa University College of Pharmacy Shaqraa Saudi Arabia Department of Biotechnology College of Science Taif University Taif Saudi Arabia Department of Biochemistry College of Veterinary Medicine Kaferel-sheikh University Kafer El-Sheikh Egypt Department of Biotechnology College of Science Taif University Taif Saudi Arabia Department of Biochemistry College of Veterinary Medicine University of Sadat City Sadat City Egypt Medical Laboratory Department College of Applied Medical Sciences Taif University Turabah Saudi Arabia Department of Biochemistry College of Veterinary Medicine Benha University Banha Egypt Medical Laboratory Department College of Applied Medical Sciences Taif University Turabah Saudi Arabia Department of Histology College of Veterinary Medicine Benha Uni-versity Banha Egypt Medical Laboratory Department College of Applied Medical Sciences Taif University Turabah Saudi Arabia Department of Physiology College of Veterinary Medicine Zagazig University Zagazig Egypt

In the present study, we investigated the biochemical alterations and gene expression of carbohydrate and lipid metabolism after oral administration of vitamin A and E for 2 months in diet-induced obese Wistar rats. Vitamin A and E administration reduced significantly the increase in body weight and food intake and normalized the alterations in lipid profiles in obese rats compared to normal rats. Moreover, both vitamins decreased the fat accumulation in liver tissues of obese rats. Finally, they up-regulated mRNA expression of Pyruvate Kinase (PK) and Glucose Transporter-2 (GLUT-2), and increased lipolysis and cholesterol metabolism through up-regulation of lipoprotein lipase (LPL), Sterol Responsible Element Binding Protein-1a (STREBP-1a) and STREBP-1c mRNA expression. In conclusion, vitamin A and E regulate gene expression of carbohydrate and lipid metabolism, and also ameliorate changes associated with obesity induced by high fat diet in Wistar rats.

关键词： Vitamin A and E Lipid Metabolism Carbohydrate Metabolism Gene Regulation Wistar Rats

Trends and outcomes of pancreaticoduodenectomy for periampullary tumors: A 25-year single-center study of 1000 consecutive cases

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World Journal of Gastroenterology 2017年第38期23卷 7025-7036页

作者： ayman el nakeeb waleed askar ehab atef ehab el hanafy ahmad m sultan tarek salah ahmed shehta mohamed el sorogy emad hamdy mohamed el hemly ahmed a el-geidi tharwat kandil mohamed el shobari talaat abd allah amgad fouad mostafa abu zeid ahmed abu el eneen nabil gad el-hak gamal el ebidy omar fathy ahmed sultan mohamed abdel wahab gastroenterology surgical center mansoura university

AIM To evaluate the evolution, trends in surgical approaches a n d r e c o n s t r u c t i o n t e c h n i q u e s, a n d i m p o r t a n t lessons learned from performing 1000 consecutive pancreaticoduodenectomies(PDs) for periampullary *** This is a retrospective review of the data of all patients who underwent PD for periampullary tumor during the period from January 1993 to April 2017. The data were categorized into three periods, including early period(1993-2002), middle period(2003-2012), and late period(2013-2017).RESULTS The frequency showed PD was increasingly performed after the year 2000. With time, elderly, cirrhotic and obese patients, as well as patients with uncinate process carcinoma and borderline tumor were increasingly selected for PD. The median operative time and postoperative hospital stay decreased significantly over the periods. Hospital mortality declined significantly, from 6.6% to 3.1%. Postoperative complications significantly decreased, from 40% to 27.9%. There was significant decrease in postoperative pancreatic fistula in the second 10 years, from 15% to 12.7%. There was a significant improvement in median survival and overall survival among the *** Surgical results of PD significantly improved, with mortality rate nearly reaching 3%. Pancreatic reconstruction following PD is still debatable. The survival rate was also improved but the rate of recurrence is still high, at 36.9%.

关键词： Pancreaticoduodenectomy Pancreaticogastrostomy Pancreaticojejunostomy Postoperative pancreatic fistula Periampullary tumor

The Impact of Turbulence on MANET FSO Networks Using NS-3

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Journal of Computer and Communications 2022年第10期10卷 162-171页

作者： Lamiae Bouanane fouad mohamed Abbou Farid Abdi Kevin Smith Abdelouahab Abid Faculty of Sciences and Technologies Sidi Mohamed Ben Abdellah University Fes Morocco School of Science and Engineering Al Akhawayn University Ifrane Morocco Information Technology Islamic University of Medina Saudi Arabia Medina Kingdom of Saudi Arabia

In this paper, the impact of atmospheric turbulence is investigated and analyzed for the Free Space Optical Mobile Ad Hoc Networks (FSO MANET) using the Network Simulator NS-3. The FSO channel random intensity fluctuations have been modeled using the Exponentiated Weibull (EW) distribution. Further, the FSO module has been implemented and integrated with NS3 using the FSO propagation model and the FSO error models. The computation of the key performance indicators (KPI) mainly the throughput and the packet delivery ratio (PDR) shows that the network density affects the network performance. Its effect was illustrated for the different turbulence regimes, strong and weak. It is found that the throughput and PDR values decrease as the number of mobile nodes becomes larger. For instance, at 150 kbps and in the presence of strong turbulence with 25, 50, and 75 nodes, the PDRs are 77%, 76%, and 73% respectively. Moreover, the throughput and PDR values in the strong turbulence regime are lower than those in the weak turbulence regime for the same date rate. The throughput in the strong turbulence regime with 75 mobile nodes at the data rate 150 kbps is 2100 kbps while it is 2300 kbps in the weak turbulence mode at the same rate.

关键词： MANET FSO Turbulence Exponentiated Weibull BER Packet Delivery Ratio NS-3

Interaction of insulin with prokinetic drugs in STZ-induced diabetic mice

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World Journal of Gastrointestinal Pharmacology and Therapeutics 2013年第2期4卷 28-38页

作者： mohamed A fouad Shalaby Hekma A Abd El Latif Mostafa E El Sayed Department of Pharmacology Kahira Pharmaceutical CompanyCairo 793Egypt Faculty of Pharmacy Cairo UniversityCairo 11562Egypt

AIM:To study the possible interactions of metoclopramide,domperidone and erythromycin in streptozotocin-induced diabetic mice treated with insulin by various ***:Effects of the individual as well as combined drugs were studied in diabetic mice via estimation of the blood glucose and serum insulin levels,small intestinal transit(SIT),gastric emptying(GE),xylose absorption and glucose tolerance *** were given insulin 2 IU/kg s.c.,metoclopramide 20 mg/kg p.o.,domperidone 20 mg/kg *** erythromycin 6 mg/kg *** and in *** were also normal and diabetic control *** first set of experiments was carried out to investigate the subchronic effect on blood glucose and serum insulin levels in diabetic mice of one week of daily dose administration of the tested drugs individually as well as the combination of insulin with each prokinetic *** other five sets of experiments were carried out to investigate the acute effect of a single dose of each drug individually and in combination on blood glucose and serum insulin levels,SIT,GE,oral xylose absorption and glucose tolerance ***:The study included the prokinetic drugs metoclopramide(20 mg/kg),domperidone(20 mg/kg) and erythromycin(6 mg/kg),as well as insulin(2 IU/kg),which was individually effective in decreasing SIT,enhancing GE and increasing xylose absorption significantly in diabetic *** tended to decrease blood glucose level and increase serum insulin level after 1 wk of daily administration in diabetic *** potentiated the effect of insulin on blood glucose level and serum insulin level whereas other prokinetic agents failed to do so after repeated dose administration in diabetic *** or erythromycin in combination with insulin significantly decreased SIT,in diabetic mice,to lower levels than with insulin *** of prokinetic drugs along with insulin antagonized the action of insulin on xylose abs

关键词： Streptozotocin Gastrointestinal motility Insulin Prokinetic drugs Intestinal absorption