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Zayed, E. M., A. A. Elbannany, and S. A. Ghozlan, "Activated nitriles in heterocyclic synthesis. Novel synthesis of pyrazoles, pyridones and pyrrolo[2.3-b]pyridones", Organic Preparations and Procedures International, vol. 17, issue 1, pp. 70 - 75, 1985. AbstractWebsite
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Zayed, N., A. B. Awad, W. El-Akel, W. Doss, T. Awad, A. Radwan, and M. Mabrouk, "The assessment of data mining for the prediction of therapeutic outcome in 3719 Egyptian patients with chronic hepatitis C.", Clinics and research in hepatology and gastroenterology, vol. 37, issue 3, pp. 254-61, 2013 Jun. Abstract

INTRODUCTION: Decision-tree analysis; a core component of data mining analysis can build predictive models for the therapeutic outcome to antiviral therapy in chronic hepatitis C virus (HCV) patients.

AIM: To develop a prediction model for the end virological response (ETR) to pegylated interferon PEG-IFN plus ribavirin (RBV) therapy in chronic HCV patients using routine clinical, laboratory, and histopathological data.

PATIENTS AND METHODS: Retrospective initial data (19 attributes) from 3719 Egyptian patients with chronic HCV presumably genotype-4 was assigned to model building using the J48 decision tree-inducing algorithm (Weka implementation of C4.5). All patients received PEG-IFN plus RBV at Cairo-Fatemia Hospital, Cairo, Egypt in the context of the national treatment program. Factors predictive of ETR were explored and patients were classified into seven subgroups according to the different rates of ETR. The universality of the decision-tree model was subjected to a 10-fold cross-internal validation in addition to external validation using an independent dataset collected of 200 chronic HCV patients.

RESULTS: At week 48, overall ETR was 54% according to intention to treat protocol. The decision-tree model included AFP level (<8.08 ng/ml) which was associated with high probability of ETR (73%) followed by stages of fibrosis and Hb levels according to the patients' gender followed by the age of patients.

CONCLUSION: In a decision-tree model for the prediction for antiviral therapy in chronic HCV patients, AFP level was the initial split variable at a cutoff of 8.08 ng/ml. This model could represent a potential tool to identify patients' likelihood of response among difficult-to-treat presumably genotype-4 chronic HCV patients and could support clinical decisions regarding the proper selection of patients for therapy without imposing any additional costs.

Zayed, A. A., and O. A. Esayed, "Acrylamide a home prepared toxin. ", The Egyptian Journal of Forensic Sciences and Applied Toxicolgy, 2004.
Zayed, R. A., D. Omran, D. A. Mokhtar, Z. ZAKARIA, S. Ezzat, M. A. Soliman, L. Mobarak, H. El-Sweesy, and G. Emam, "Association of Toll-Like Receptor 3 and Toll-Like Receptor 9 Single Nucleotide Polymorphisms with Hepatitis C Virus Infection and Hepatic Fibrosis in Egyptian Patients.", Am J Trop Med Hyg., vol. 96, issue 3, pp. 720-726, 2017.
Zayed, B., T. Elshabony, R. A. ELaziz, M. Abdu, A. Mohamd, and M. Megdy, "Assessment of hepatic fibrosis in Egyptian hemodialysis patients with HCV genotype 4", EDTA-ERA, LONDON, 28 MAY, In Press.
Zayed, R. A., S. M. Abdel-Hamid, and H. El-Lithy, "The association of cytokine genes polymorphisms and susceptibility to aplastic anemia in Egyptian patients", Hematology, vol. 21, issue 2, pp. 106-112, 2016.
Zayed, B. E. - D. M., A. Elsharkawy, M. Abdo, and D. S. A. A. Fatah, "Assessment of Hepatic Fibrosis by Fibroscan in Egyptian Chronic Hemodialysis Patients with Chronic Hepatitis C (genotype 4):A Single-Center Study", Saudi Journal of Kidney Disease and Transplantation, vol. 28, issue 4, pp. 764-773, 2017. sjkdt_fibroscan_hdx.pdf
Zayed, B., O. Elkashab, S. Zaki, A. Amin, and K. Moursy, "Assessment of eGFR in type 2 diabetic patients by measurement of serum creatinine and serum cystatin C in comparison to renal isotopes using Tc99mDTPA", AFRAN, vol. 10, issue 12, pp. 7, 2010.
Zayed, N., A. B. Awad, W. El-Akel, W. Doss, T. Awad, A. Radwan, and M. Mabrouk, "The assessment of data mining for the prediction of therapeutic outcome in 3719 Egyptian patients with chronic hepatitis C", Clinics and research in hepatology and gastroenterology, vol. 37, no. 3: Elsevier, pp. 254–261, 2013. Abstract
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Zayed, M., M. E. L. Mola, and M. A. E. L. Hamid, "ASSESSMENT OF HOSPITAL PRACTICE TO MAINTAIN NURSING STAFF HEALTH AND SAFETY", International Journal of Research in Applied, vol. 4, issue 11, pp. 1-12, 2016. maaly_article.pdf
Zawilla, N., D. Shaker, W. Aref, and A. Abdelaal, "Angiotensin-converting enzyme gene polymorphisms and hypertension in occupational noise exposure in Egypt", International Journal of Occupational and Environmental Health, vol. 20, issue 3, pp. 194 - 206, 2014.
Zawilla, N., D. Shaker, A. Abdelaal, and W. Aref, "Angiotensin-converting enzyme gene polymorphisms and hypertension in occupational noise exposure in Egypt", international journal of occupational and environmental health, vol. 20, issue 3, pp. 194- 206, 2014. paper_of_angiotensin-converting_enzyme_gene.pdf
Zawilla, N., D. Shaker, A. Abdelaal, and W. Aref, "Angiotensin-converting enzyme gene polymorphisms and hypertension in occupational noise exposure in Egypt.", International journal of occupational and environmental health, vol. 20, issue 3, pp. 194-206, 2014 Jul-Sep. Abstract

BACKGROUND: The gene-environment interaction in the pathogenesis of hypertension has not been extensively studied in occupational noise.

OBJECTIVES: The aim of this study was to determine the relationship between noise and hypertension in Egyptian workers, the interaction of angiotensin-converting enzyme (ACE) gene polymorphisms as modifiers, and the possible relationship between noise hearing impairment and hypertension.

METHODS: Study subjects were divided into two groups depending on noise exposure level. The control group (n = 161) was exposed to noise intensity <85 dB and the exposed group (n = 217) was exposed to noise intensity ≧85 dB. A polymerase chain reaction was used to differentiate the various genotypes of ACE insertion/deletion (I/D) and ACE G2350A.

RESULTS: Noise significantly increased the likelihood of hypertension. Carriers of the genotypes AG, GG, and DD were vulnerable to hypertension on noise exposure. No association between hypertension and hearing impairment or noise-induced hearing loss (NIHL) was found.

CONCLUSION: Our results support the association between ACE gene polymorphisms and occurrence of hypertension in noise-exposed workers.

Zawbaa, H. M., M. Abbass, S. H.Basha, M. Hazman, and A. E. Hassenian, "An automatic flower classification approach using machine learning algorithms", 2014 International Conference on Advances in Computing, Communications and Informatics (ICACCI), 2014., 2014.
Zawbaa, H. M., and E. Emary, "Applications of Flower Pollination Algorithm in Feature Selection and Knapsack Problems", Nature-Inspired Algorithms and Applied Optimization: Springer, 2018. book.pdf
Zawbaa, H. M., and A. E. Hassanien, Automatic Soccer Video Summarization, : Cairo Unversity, 2012. Abstract
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Zawbaa, H. M., and A. E. Hassanien, Automatic Soccer Video Summarization, , Cairo, Cairo Unversity, 2012. Abstract

This thesis presents an automatic soccer video summarization system using machine learning (ML) techniques. The proposed system is composed of ve phases. Namely; in the pre-processing phase, the system segments the whole video stream into small video shots. Then, in the shot processing
phase, it applies two types of classi cation (shot type classi cation and play / break classification) to the video shots resulted from the pre-processing phase. Afterwards, in the replay detection phase, the proposed system applies two machine learning algorithms, namely; support vector machine (SVM) and arti cial neural network (ANN), for emphasizing important segments with championship logo appearance. Also, in the excitement event detection phase, the proposed system uses both machine learning algorithms for detecting the scoreboard which contain an information about the score of the game. The proposed system also uses k-means algorithm and Hough line transform for detecting vertical goal posts and Gabor lter for detecting goal net. Finally, in the event detection and summarization phase, the proposed system highlights the most important events during the match. Experiments on real soccer videos demonstrate encouraging results. The event detection and summarization has attained recall 94% and precision 97.3% for soccer match videos from ve international soccer championships.

Zawbaa, H. M., M. Abbass, S. Basha, M. Hazman, and A. E. Hassanien, "An Automatic Flower Classification Approach Using Machine Learning Algorithms", Advances in Computing, Communications and Informatics (ICACCI, 2014 International Conference on, New Delhi, 24-27 Sept. 2014.
Zawbaa, H. M., M. Abbass, M. Hazman, and A. E. Hassenian, "Automatic Fruit Image Recognition System based on Shape and Color Features ", The 2nd International Conference on Advanced Machine Learning Technologies and Applications , Egypt, November 17-19, , 2014.
Zawbaa, H. M., M. Hazman, M. Abbass, and A. E. Hassanien, "Automatic fruit classification using random forest algorithm", Hybrid Intelligent Systems (HIS), 2014 14th International Conference on: IEEE, pp. 164–168, 2014. Abstract
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Zawam, H., J. L., C. J., A. M.M.O.M., W. F., G. G., and A. - M. Y, "ANALYSIS OF THE EFFECTS OF DIFFERENT MATCHING CONE BEAM CT STRATEGIES ON THE DOSE DISTRIBUTION IN BREAST CANCER BY t-IMRT AND VMAT DELIVERIES.", UAE cancer congress, Dubai, 2016. abstract_uae.pdf
Zawam, S. H. M., A. Gad, I. E. Geady, and M. K. A. el Aziz, All thorough arthroscopic reduction and fixation of depressed tibial plateau fractures, , 2018.
Zalata, A., N. Mokhtar, A. Badawy, G. Othman, M. Alghobary, and T. Mostafa, "Androgen receptor expression relationship with semen variables in infertile men with varicocele", J Urol, vol. 189, issue 6, pp. 2243-7, 2013.
Zalata, A., H. K. Morsy, A. Badawy, S. Elhanbly, and T. Mostafa, "Angiotensin converting enzyme gene I/D polymorphism seminal associations in infertile men", J Urol, vol. 187 , issue 5, pp. 1776-80, 2012.
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