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Tolba, M. F., W. S. Sayed, M. E. Fouda, H. Saleh, M. Al-Qutayri, B. Mohammad, and A. G. Radwan, "Digital Emulation of a Versatile Memristor With Speech Encryption Application", IEEE Access, vol. 7: IEEE, pp. 174280-174297, 2019. Abstract
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Tolba, M. F., M. E. Fouda, H. G. Hezayyin, A. H. Madian, and A. G. Radwan, "Memristor FPGA ip core implementation for analog and digital applications", IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 66, no. 8: IEEE, pp. 1381–1385, 2018. Abstract
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Tolba, D. A., A. M. Abdelrahman, H. M. A. El-Saied, and M. S. Kotb, "The effect of trabeculectomy and deep sclerectomy on the choroidal thickness: a comparative study", Delta journal of ophthalmology, vol. 22, issue 2, pp. 124, 2021.
Tolba, M. F., A. M. AbdelAty, L. A. Said, A. S. Elwakil, A. T. Azar, A. H. Madian, A. Ounnas, and A. G. Radwan, "FPGA realization of Caputo and Grünwald-Letnikov operators", Modern Circuits and Systems Technologies (MOCAST), 2017 6th International Conference on: IEEE, pp. 1–4, 2017. Abstract
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Tolba, M. F., A. S. Elwakil, H. Orabi, M. Elnawawy, F. Aloul, A. Sagahyroon, and A. G. Radwan, "FPGA implementation of a chaotic oscillator with odd/even symmetry and its application", Integration, vol. 72: Elsevier, pp. 163–170, 2020. Abstract
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Tolba, D., A. A. Rahman, H. Hamdy, and S. Esmat, "Clinical characteristics and interventions in neovascular glaucoma cases: a study from the glaucoma care clinic at Cairo University Hospitals", Delta Journal of Ophthalmology, vol. 22, issue 3, pp. 208 - 213, 2021/7/1. AbstractWebsite

Aim The aim of this study was to report the epidemiology, clinical characteristics, causes, management, and outcome of neovascular glaucoma (NVG) in a tertiary facility in Egypt (Glaucoma Care Clinic at Cairo University Hospitals).
Patients and methods The demographic and clinical data of 251 eyes diagnosed with NVG were retrospectively studied. The antiglaucoma medications and interventions used for management were reviewed with analysis of the outcome in the form of success rate, final visual acuity (VA) and intraocular pressure (IOP). Complete success was defined as an IOP between 6 and 21 mm Hg without topical or systemic glaucoma medications with preservation of presenting VA.
Results NVG was diagnosed in 7.9% of all glaucoma patients in our clinic. The prevalence was more in men (58.8%), and the mean age was 56.5±11 years. Diabetic retinopathy was the most common cause for NVG (61.4%), followed by central retinal vein occlusion (21.4%). The presenting VA was light perception (LP) or less in 45% of the eyes. Diode laser cyclophotocoagulation was the most common treatment modality used (57%), followed by antiglaucoma medications only in 28% and finally surgery in 15% of the patients. Complete success in the diode group was achieved in 73.43% of the cases compared with 68.42% in the surgery group, with no statistically significant difference (P=0.522). The effect of an intravitreal injection of antivascular endothelial growth factor on the final IOP was significant (P=0.024).
Conclusions NVG has a high prevalence in our glaucoma patients. The patients presented very late, with nearly half of the patients having VA of LP or less. This led to decreased resort to surgical intervention. Diode laser cyclophotocoagulation was the main treatment modality used, with significant control of the IOP.

Tolba, D. A., R. H. Amin, A. M. AlOrbani, and S. M. Esmat, "Retinal vascular assessment in psoriatic patients with and without metabolic syndrome using optical coherence tomography angiography.", Scientific reports, vol. 12, issue 1, pp. 16720, 2022. Abstract

To evaluate the retinal vasculature in psoriasis patients and detect if metabolic syndrome is an additional risk factor. This cross-sectional analytic study was carried out on 80 eyes of 80 subjects; 28 eyes with psoriasis only (PS group), 12 eyes with additional metabolic syndrome to psoriasis (PMS group) and 40 eyes healthy controls (HS). The retinal capillary plexuses were evaluated by OCTA. The disease activity was evaluated by the Psoriasis Area and Severity Index (PASI) score and extent. The superficial capillary plexus (SCP) vascular density was significantly lower in PS group than HS while in PMS it was significantly lower only in whole image and superior and temporal perifoveal areas (p-value = 0.020, 0.030, 0.001 respectively). The changes correlated with the disease duration. The vascular density of the deep capillary plexus (DCP) was significantly lower in both PS and PMS groups (p-value < 0.001). Psoriatic patients are at a higher risk of developing retinal vascular complications even without evident clinical ocular disease. It was noted that the presence of metabolic syndrome contributes as an additional risk factor in possible visual loss secondary to ischemic changes that are likely to start in the DCP and progress to involve all levels.

Tolba, M. F., W. S. Sayed, A. G. Radwan, and S. K. Abd-El-Hafiz, "FPGA Realization of Speech Encryption Based on Modified Chaotic Logistic Map", 19th International Conference on Industrial Technology, 2018. Abstract
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Tolba, M. F., W. S. Sayed, A. G. Radwan, S. K. Abd-El-Hafiz, and A. M. Soliman, "Permutation-only fpga realization of real-time speech encryption", 2018 25th IEEE International Conference on Electronics, Circuits and Systems (ICECS): IEEE, pp. 93–96, 2018. Abstract
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tolba, A., S. Daghash, M. I. Abdrabou, and M. Fathi, "Anatomical, histological and in vitro study debating some reasons for left horn pregnancy phenomenon in the one-humped she-camel(camelus dromedarius)", Bioscience Research, vol. 16, issue 4, pp. 3629-3639, 2019.
Tolba, M. F., B. A. D. M. AboAlNaga, L. A. Said, A. H. Madian, and A. G. Radwan, "Fractional order integrator/differentiator: FPGA implementation and FOPID controller application", AEU-International Journal of Electronics and Communications, vol. 98: Urban & Fischer, pp. 220-229, 2019. Abstract
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Tolba, A. A. H., W. Z. Azer, F. A. A. Ibrahim, and A. E. - A. M. A. H. K. and M.O. Abd El-Samee, "Improving the productive performance of Japanese quail under hot environmental stress in north Africa", Egypt. Poult. Sci., vol. 35, pp. 41-67., 2015. Abstract
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Tolba, M. F., W. S. Sayed, A. G. Radwan, and S. K. Abd-El-Hafiz, "Chaos-based hardware speech encryption scheme using modified tent map and bit permutation", International Conference on Modern Circuits and Systems Technologies (MOCAST 2018), Thessaloniki, Greece, May, 2018.
Tolba, D. A., D. M. S. El-Fayoumi, M. S. Abdelaziz, and M. H. Nabih, "Fluorescein Angiographic Findings in Patients with Active Systemic Lupus Erythematosus", ocular immunology and inflammation, vol. 26(6), issue 0927-3948, pp. 884-890, 2017. fluorescein_angiographic_findings_in_patients_with_active_systemic_lupus_erythematosus.pdf
Tolba, D. A., R. H. Amin, A. M. AlOrbani, and S. M. Esmat, "Retinal vascular assessment in psoriatic patients with and without metabolic syndrome using optical coherence tomography angiography.", Scientific reports, vol. 12, issue 1, pp. 16720, 2022. Abstract

To evaluate the retinal vasculature in psoriasis patients and detect if metabolic syndrome is an additional risk factor. This cross-sectional analytic study was carried out on 80 eyes of 80 subjects; 28 eyes with psoriasis only (PS group), 12 eyes with additional metabolic syndrome to psoriasis (PMS group) and 40 eyes healthy controls (HS). The retinal capillary plexuses were evaluated by OCTA. The disease activity was evaluated by the Psoriasis Area and Severity Index (PASI) score and extent. The superficial capillary plexus (SCP) vascular density was significantly lower in PS group than HS while in PMS it was significantly lower only in whole image and superior and temporal perifoveal areas (p-value = 0.020, 0.030, 0.001 respectively). The changes correlated with the disease duration. The vascular density of the deep capillary plexus (DCP) was significantly lower in both PS and PMS groups (p-value < 0.001). Psoriatic patients are at a higher risk of developing retinal vascular complications even without evident clinical ocular disease. It was noted that the presence of metabolic syndrome contributes as an additional risk factor in possible visual loss secondary to ischemic changes that are likely to start in the DCP and progress to involve all levels.

Tolba, S., I. M. Reda, S. El-Asely, E. El-Ebiary, A. El-Sanousi, and N. Barhouma, "Studies on infectious laryngotracheitis virus. II. The effect of incubation temperature on the pathogenicity of I.L.T. virus (for chicken embryos inoculated by allantoic route)", Assiut Vet. Med. J. , vol. 25(49), pp. 82-86, 1991.
Tolba, M. F., A. H. Madian, and A. G. Radwan, "FPGA realization of ALU for mobile GPU", 3rd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA), 2016. Abstract
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Tolba, M. F., M. E. Fouda, H. G. Hezayyin, A. H. Madian, and A. G. Radwan, "Memristor FPGA ip core implementation for analog and digital applications", IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 66, no. 8: IEEE, pp. 1381–1385, 2019. Abstract
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Tolba, M. F., W. S. Sayed, A. G. Radwan, S. K. Abd-El-Hafiz, and A. M. Soliman, "Permutation-only FPGA realization of real-time speech encryption", IEEE International Conference on Electronics, Circuits and Systems (ICECS 2018), Bordeaux, France, December, 2018.
Tolba, H. M., and A. N. Shafik, "Preliminary Study on the Antimicrobial activity of some Non-Steroid Anti-inflammatory Drugs against Organisms Causing Arthritis. ", - Kasr El Eini Medical Journal , vol. 7, issue 2, 2001.
Tolba, M. F., W. S. Sayed, A. G. Radwan, and S. K. Abd-El-Hafiz, "Chaos-based hardware speech encryption scheme using modified tent map and bit permutation", 2018 7th International Conference on Modern Circuits and Systems Technologies (MOCAST): IEEE, pp. 1-4, 2018. Abstract
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Tolba, M. F., W. S. Sayed, A. G. Radwan, S. K. Abd-El-Hafiz, and A. M. Soliman, "Hardware Speech Encryption Using a Chaotic Generator, Dynamic Shift and Bit Permutation", 2018 30th International Conference on Microelectronics (ICM): IEEE, pp. 100–103, 2018. Abstract
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tolba, A., H. A. Farghali, and Samer Mohamed Daghash, "Gross anatomical and radiographic findings of museum preserved buffalo calves conjoined twin for learning purposes", JOURNAL OF ADVANCED VETERINARY AND ANIMAL RESEARCH, vol. 7, issue 1, pp. 56–61, 2019.
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