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Kumar, S., M. Niwas, M. S. Osman, and M. A. Abdou, "Abundant different types of exact soliton solution to the (4+ 1)-dimensional Fokas and (2+ 1)-dimensional breaking soliton equations", Communications in Theoretical Physics, vol. 73, issue 10: IOP Publishing, pp. 105007, 2021. Abstract
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Ali, K. K., R. Yilmazer, H. Bulut, T. Aktürk, and M. S. Osman, "Abundant exact solutions to the strain wave equation in micro-structured solids", Modern Physics Letters B, vol. 35, issue 26: World Scientific, pp. 2150439, 2021. Abstract
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Yang, M., M. S. Osman, and J. - G. Liu, "Abundant lump-type solutions for the extended (3+ 1)-dimensional Jimbo–Miwa equation", Results in Physics, vol. 23: Elsevier, pp. 104009, 2021. Abstract
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Tahir, M., A. U. Awan, M. S. Osman, D. Baleanu, and M. M. Alqurashi, "Abundant periodic wave solutions for fifth-order Sawada-Kotera equations", Results in Physics, vol. 17, pp. 103105, 2020.
Ellah, M. A., A. Eldeib, and M. I. Owis, "Accelerating DRR Generation using Fourier Slice Theorem on the GPU", IEEE Engineering in Medicine and Biology conference (EMBC2015): IEEE, 2015. Abstract
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Ellah, M. A., A. M. Eldeib, and M. I. Owis, "Accelerating DRR Generation using Fourier Slice Theorem on the GPU", The 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS), Milano, Italy, pp 4238-4241, 8/2015. ebmc_2015_-_accelerating_drr_generation_using_fourier_slice_theorem_on_the_gpu.pdf
Salman, M. A., H. M. S. Mikhail, A. Abdelsalam, A. Abdallah, H. E. Elshafey, T. E. Abouelregal, M. G. Omar, H. Elkassar, R. A. Ahmed, M. Atallah, et al., "Acceleration of Gastric Emptying and Improvement of GERD Outcome After Laparoscopic Sleeve Gastrectomy in Non-diabetic Obese Patients.", Obesity surgery, 2020. Abstract

PURPOSE: Obesity has become a pandemic nowadays. Bariatric surgery is increasingly performed to manage obesity. Currently, laparoscopic sleeve gastrectomy (LSG) is a widely accepted procedure given its feasibility and efficacy. Previous studies revealed conflicting results regarding the change of gastric emptying following sleeve gastrectomy. The primary aim of the present study is to assess gastric motor function by gastric emptying scintigraphy in a cohort of non-diabetic patients undergoing laparoscopic sleeve gastrectomy (LSG) for treatment of severe obesity.

METHODS: This prospective observational study included 100 obese, non-diabetic patients attending the surgery clinic at Cairo University Hospitals and Al Azhar University Hospitals. LSG was performed following a standardized protocol, with no complications observed. All patients had gastric emptying scintigraphy done through a standard semisolid meal (250 kcal), marked with 0.5 mCiTc 99, pre-operatively and 3 months after LSG.

RESULTS: The mean age was 38.71 years (9.2) and males comprised 57% of the cohort. The body mass index, low-density lipoproteins, and glycated hemoglobin declined significantly at 3-month postsurgery. The scintigraphy study revealed a significantly reduced percent retention at equivalent time points 3 months after LSG. In addition, the percent of patients suffering from GERD decreased significantly after LSG.

CONCLUSION: Gastric emptying becomes faster after LSG in morbidly obese non-diabetic patients. GERD symptoms improve after surgery.

Salman, M. A., H. M. S. Mikhail, A. Abdelsalam, A. Abdallah, H. E. Elshafey, T. E. Abouelregal, M. G. Omar, H. Elkassar, R. A. Ahmed, M. Atallah, et al., "Acceleration of Gastric Emptying and Improvement of GERD Outcome After Laparoscopic Sleeve Gastrectomy in Non-diabetic Obese Patients.", Obesity surgery, 2020. Abstract

PURPOSE: Obesity has become a pandemic nowadays. Bariatric surgery is increasingly performed to manage obesity. Currently, laparoscopic sleeve gastrectomy (LSG) is a widely accepted procedure given its feasibility and efficacy. Previous studies revealed conflicting results regarding the change of gastric emptying following sleeve gastrectomy. The primary aim of the present study is to assess gastric motor function by gastric emptying scintigraphy in a cohort of non-diabetic patients undergoing laparoscopic sleeve gastrectomy (LSG) for treatment of severe obesity.

METHODS: This prospective observational study included 100 obese, non-diabetic patients attending the surgery clinic at Cairo University Hospitals and Al Azhar University Hospitals. LSG was performed following a standardized protocol, with no complications observed. All patients had gastric emptying scintigraphy done through a standard semisolid meal (250 kcal), marked with 0.5 mCiTc 99, pre-operatively and 3 months after LSG.

RESULTS: The mean age was 38.71 years (9.2) and males comprised 57% of the cohort. The body mass index, low-density lipoproteins, and glycated hemoglobin declined significantly at 3-month postsurgery. The scintigraphy study revealed a significantly reduced percent retention at equivalent time points 3 months after LSG. In addition, the percent of patients suffering from GERD decreased significantly after LSG.

CONCLUSION: Gastric emptying becomes faster after LSG in morbidly obese non-diabetic patients. GERD symptoms improve after surgery.

Salman, M. A., H. M. S. Mikhail, A. Abdelsalam, A. Abdallah, H. E. Elshafey, T. E. Abouelregal, M. G. Omar, H. Elkassar, R. A. Ahmed, M. Atallah, et al., "Acceleration of Gastric Emptying and Improvement of GERD Outcome After Laparoscopic Sleeve Gastrectomy in Non-diabetic Obese Patients.", Obesity surgery, vol. 30, issue 7, pp. 2676-2683, 2020. Abstract

PURPOSE: Obesity has become a pandemic nowadays. Bariatric surgery is increasingly performed to manage obesity. Currently, laparoscopic sleeve gastrectomy (LSG) is a widely accepted procedure given its feasibility and efficacy. Previous studies revealed conflicting results regarding the change of gastric emptying following sleeve gastrectomy. The primary aim of the present study is to assess gastric motor function by gastric emptying scintigraphy in a cohort of non-diabetic patients undergoing laparoscopic sleeve gastrectomy (LSG) for treatment of severe obesity.

METHODS: This prospective observational study included 100 obese, non-diabetic patients attending the surgery clinic at Cairo University Hospitals and Al Azhar University Hospitals. LSG was performed following a standardized protocol, with no complications observed. All patients had gastric emptying scintigraphy done through a standard semisolid meal (250 kcal), marked with 0.5 mCiTc 99, pre-operatively and 3 months after LSG.

RESULTS: The mean age was 38.71 years (9.2) and males comprised 57% of the cohort. The body mass index, low-density lipoproteins, and glycated hemoglobin declined significantly at 3-month postsurgery. The scintigraphy study revealed a significantly reduced percent retention at equivalent time points 3 months after LSG. In addition, the percent of patients suffering from GERD decreased significantly after LSG.

CONCLUSION: Gastric emptying becomes faster after LSG in morbidly obese non-diabetic patients. GERD symptoms improve after surgery.

El Kassas, M., M. Alboraie, D. Omran, M. Salaheldin, M. N. Wifi, M. Elbadry, adel el tahan, S. Ezzat, E. Moaz, A. M. Farid, et al., "An account of the real-life hepatitis C management in a single specialized viral hepatitis treatment centre in Egypt: results of treating 7042 patients with 7 different direct acting antiviral regimens", Expert Review of Gastroenterology & Hepatology, vol. 12, issue 12, pp. 1265-1272, 2018. single_centre_paper.pdf
El Kassas, M., M. Alboraie, D. Omran, M. Salaheldin, M. N. Wifi, M. Elbadry, adel el tahan, S. Ezzat, E. Moaz, A. M. Farid, et al., "An account of the real-life hepatitis C management in a single specialized viral hepatitis treatment centre in Egypt: results of treating 7042 patients with 7 different direct acting antiviral regimens.", Expert review of gastroenterology & hepatology, pp. 1-8, 2018 May 24. Abstract

BACKGROUND: A large Egyptian treatment program for HCV was launched in2014 after the introduction of direct-acting antiviral agents (DAAs). This program depended mainly on establishing specialized independent centres for HCV treatment. These centres represent the major strengths in the Egyptian model of care, as they provide integrated care for HCV patients and have enabled Egypt to treat more than one million patients in 3 years. The New Cairo Viral Hepatitis Treatment Center (NCVHTC) is an example of these specialized centres.

METHODS: The Egyptian experience in the management of HCV was evaluated by analysing the data of real-life HCV management in the NCVHTC from 2014 to 2017. Results of different treatment regimens in addition to their strengths, limitations and areas for improvement are discussed in this report.

RESULTS: A total of 7042 HCV patients have been evaluated for treatment in the NCVHTC. Among them, 5517 patients received treatment by seven different DAA regimens with excellent results.

CONCLUSIONS: All regimens were highly effective at treating HCV in a real-life setting, apart from SOF/RBV, which was the least effective. A nationwide screening program and enhancing the follow-up of treated patients are the main missing pillars in the Egyptian model.

El Kassas, M., M. Alboraie, D. Omran, M. Salaheldin, M. N. Wifi, M. Elbadry, adel el tahan, S. Ezzat, E. Moaz, A. M. Farid, et al., "An account of the real-life hepatitis C management in a single specialized viral hepatitis treatment centre in Egypt: results of treating 7042 patients with 7 different direct acting antiviral regimens.", Expert review of gastroenterology & hepatology, pp. 1-8, 2018 May 24. Abstract

BACKGROUND: A large Egyptian treatment program for HCV was launched in2014 after the introduction of direct-acting antiviral agents (DAAs). This program depended mainly on establishing specialized independent centres for HCV treatment. These centres represent the major strengths in the Egyptian model of care, as they provide integrated care for HCV patients and have enabled Egypt to treat more than one million patients in 3 years. The New Cairo Viral Hepatitis Treatment Center (NCVHTC) is an example of these specialized centres.

METHODS: The Egyptian experience in the management of HCV was evaluated by analysing the data of real-life HCV management in the NCVHTC from 2014 to 2017. Results of different treatment regimens in addition to their strengths, limitations and areas for improvement are discussed in this report.

RESULTS: A total of 7042 HCV patients have been evaluated for treatment in the NCVHTC. Among them, 5517 patients received treatment by seven different DAA regimens with excellent results.

CONCLUSIONS: All regimens were highly effective at treating HCV in a real-life setting, apart from SOF/RBV, which was the least effective. A nationwide screening program and enhancing the follow-up of treated patients are the main missing pillars in the Egyptian model.

El Kassas, M., M. Alboraie, D. Omran, M. Salaheldin, M. N. Wifi, M. Elbadry, adel el tahan, S. Ezzat, E. Moaz, A. M. Farid, et al., "An account of the real-life hepatitis C management in a single specialized viral hepatitis treatment centre in Egypt: results of treating 7042 patients with 7 different direct acting antiviral regimens.", Expert review of gastroenterology & hepatology, pp. 1-8, 2018 May 24. Abstract

BACKGROUND: A large Egyptian treatment program for HCV was launched in2014 after the introduction of direct-acting antiviral agents (DAAs). This program depended mainly on establishing specialized independent centres for HCV treatment. These centres represent the major strengths in the Egyptian model of care, as they provide integrated care for HCV patients and have enabled Egypt to treat more than one million patients in 3 years. The New Cairo Viral Hepatitis Treatment Center (NCVHTC) is an example of these specialized centres.

METHODS: The Egyptian experience in the management of HCV was evaluated by analysing the data of real-life HCV management in the NCVHTC from 2014 to 2017. Results of different treatment regimens in addition to their strengths, limitations and areas for improvement are discussed in this report.

RESULTS: A total of 7042 HCV patients have been evaluated for treatment in the NCVHTC. Among them, 5517 patients received treatment by seven different DAA regimens with excellent results.

CONCLUSIONS: All regimens were highly effective at treating HCV in a real-life setting, apart from SOF/RBV, which was the least effective. A nationwide screening program and enhancing the follow-up of treated patients are the main missing pillars in the Egyptian model.

El Kassas, M., M. Alboraie, D. Omran, M. Salaheldin, M. N. Wifi, M. Elbadry, adel el tahan, S. Ezzat, E. Moaz, A. M. Farid, et al., "An account of the real-life hepatitis C management in a single specialized viral hepatitis treatment centre in Egypt: results of treating 7042 patients with 7 different direct acting antiviral regimens.", Expert review of gastroenterology & hepatology, pp. 1-8, 2018 May 24. Abstract

BACKGROUND: A large Egyptian treatment program for HCV was launched in2014 after the introduction of direct-acting antiviral agents (DAAs). This program depended mainly on establishing specialized independent centres for HCV treatment. These centres represent the major strengths in the Egyptian model of care, as they provide integrated care for HCV patients and have enabled Egypt to treat more than one million patients in 3 years. The New Cairo Viral Hepatitis Treatment Center (NCVHTC) is an example of these specialized centres.

METHODS: The Egyptian experience in the management of HCV was evaluated by analysing the data of real-life HCV management in the NCVHTC from 2014 to 2017. Results of different treatment regimens in addition to their strengths, limitations and areas for improvement are discussed in this report.

RESULTS: A total of 7042 HCV patients have been evaluated for treatment in the NCVHTC. Among them, 5517 patients received treatment by seven different DAA regimens with excellent results.

CONCLUSIONS: All regimens were highly effective at treating HCV in a real-life setting, apart from SOF/RBV, which was the least effective. A nationwide screening program and enhancing the follow-up of treated patients are the main missing pillars in the Egyptian model.

El Kassas, M., M. Alboraie, D. Omran, M. Salaheldin, M. N. Wifi, M. Elbadry, adel el tahan, S. Ezzat, E. Moaz, A. M. Farid, et al., "An account of the real-life hepatitis C management in a single specialized viral hepatitis treatment centre in Egypt: results of treating 7042 patients with 7 different direct acting antiviral regimens.", Expert review of gastroenterology & hepatology, vol. 12, issue 12, pp. 1265-1272, 2018. Abstract

BACKGROUND: A large Egyptian treatment program for HCV was launched in2014 after the introduction of direct-acting antiviral agents (DAAs). This program depended mainly on establishing specialized independent centres for HCV treatment. These centres represent the major strengths in the Egyptian model of care, as they provide integrated care for HCV patients and have enabled Egypt to treat more than one million patients in 3 years. The New Cairo Viral Hepatitis Treatment Center (NCVHTC) is an example of these specialized centres.

METHODS: The Egyptian experience in the management of HCV was evaluated by analysing the data of real-life HCV management in the NCVHTC from 2014 to 2017. Results of different treatment regimens in addition to their strengths, limitations and areas for improvement are discussed in this report.

RESULTS: A total of 7042 HCV patients have been evaluated for treatment in the NCVHTC. Among them, 5517 patients received treatment by seven different DAA regimens with excellent results.

CONCLUSIONS: All regimens were highly effective at treating HCV in a real-life setting, apart from SOF/RBV, which was the least effective. A nationwide screening program and enhancing the follow-up of treated patients are the main missing pillars in the Egyptian model.

Allam, A. A., J. S. Ajarem, A. K. Hegazy, S. M. Al-Sobeai, M. S., G. Allam, M. K. Okla, N. Altoom, and M. Elhag, "Accumulation of heavy metal pollutants in the components of Petroleum polluted arid ecosystem", Proceedings of the 14th International Conference on Environmental Science and Technology, Rhodes, Greece, Greece, 3-5 September, 2015. 2015cest2015_paper2.pdf
Adel, A., W. Awada, B. A. Elhamid, H. Omar, O. A. E. Dayem, A. Hasanin, and A. Rady, "Accuracy and trending of non-invasive hemoglobin measurement during different volume and perfusion statuses.", Journal of clinical monitoring and computing, 2018 Jan 15. Abstract

The evolution of non-invasive hemoglobin measuring technology would save time and improve transfusion practice. The validity of pulse co-oximetry hemoglobin (SpHb) measurement in the perioperative setting was previously evaluated; however, the accuracy of SpHb in different volume statuses as well as in different perfusion states was not well investigated. The aim of this work is to evaluate the accuracy and trending of SpHb in comparison to laboratory hemoglobin (Lab-Hb) during acute bleeding and after resuscitation. Seventy patients scheduled for major orthopedic procedures with anticipated major blood loss were included. Radical-7 device was used for continuous assessment of SpHb, volume status [via pleth variability index (PVI)] and perfusion status [via perfusion index (PI)]. Lab-Hb and SpHb were measured at three time-points, a baseline reading, after major bleeding, and after resuscitation. Samples were divided into fluid-responsive and fluid non-responsive samples, and were also divided into high-PI and low-PI samples. Accuracy of SpHb was determined using Bland-Altman analysis. Trending of SpHb was evaluated using polar plot analysis. We obtained 210 time-matched readings. Fluid non-responsive samples were 106 (50.5%) whereas fluid responsive samples were 104 (49.5%). Excellent correlation was reported between Lab-Hb and SpHb (r = 0.938). Excellent accuracy with moderate levels of agreement was also reported between both measures among all samples, fluid non-responsive samples, fluid-responsive samples, high-PI samples, and low-PI samples [Mean bias (limits of agreement): 0.01 (- 1.33 and 1.34) g/dL, - 0.08 (- 1.27 and 1.11) g/dL, 0.09 (- 1.36 and 1.54) g/dL, 0.01 (- 1.34 to 1.31) g/dL, and 0.04 (- 1.31 to 1.39) g/dL respectively]. Polar plot analysis showed good trending ability for SpHb as a follow up monitor. In conclusion, SpHb showed excellent correlation with Lab-Hb in fluid responders, fluid non-responders, low-PI, and high PI states. Despite a favorable mean bias of 0.01 g/dL for SpHb, the relatively wide levels of agreement (- 1.3 to 1.3 g/dL) might limit its accuracy. SpHb showed good performance as a trend monitor.

Mostafa, M. M. A., A. M. Hasanin, F. Alhamade, B. A. Elhamid, A. G. Safina, S. M. Kasem, Osama Hosny, M. Mahmoud, E. fouad, A. Rady, et al., "Accuracy and trending of non-invasive oscillometric blood pressure monitoring at the wrist in obese patients.", Anaesthesia, critical care & pain medicine, vol. 39, issue 2, pp. 221-227, 2020. Abstract

BACKGROUND: In obese patients, non-invasive blood pressure monitoring in the arm is difficult due to the arm size and morphology. We compared the non-invasive oscillometric wrist blood pressure measurement with the arm and forearm in obese patients monitored with invasive radial blood pressure (reference standard).

METHODS: This prospective observational study included adult obese patients scheduled for bariatric surgery. Non-invasive blood pressure was measured at the arm, upper forearm and wrist of one upper extremity, while invasive blood pressure was simultaneously measured through a radial arterial catheter in the contralateral upper extremity. The accuracy of non-invasive blood pressure reading at each site was evaluated for absolute and trending values using the Bland-Altman analysis and Spearman's correlation coefficient.

RESULTS: In 40 patients, 262, 259, and 263 pairs of non-invasive blood pressure readings were obtained from the arm, forearm, and wrist sites, respectively. As primary outcome, the correlation coefficient for systolic blood pressure was higher for the wrist (0.92, 95% confidence interval (CI) [0.9-0.94]) than for the arm (0.74, 95% CI [0.68-0.79]) and the forearm (0.71, 95% CI [0.64-0.76]) (P<0.05). The non-invasive systolic wrist blood pressure showed the least mean bias and the narrowest limits of agreement (-0.3±7.6mmHg) when compared with forearm (4.3±16) and arm measurements (14.2±13.6) (P<0.05). For trending values, the correlation coefficient was the highest at the wrist.

CONCLUSION: In obese patients undergoing bariatric surgery, non-invasive blood pressure measured at the wrist showed the highest accuracy in comparison with the arm and forearm.

abdehamid, B., A. Hasanin, abdelmonem adel, and H. Omar, "Accuracy and trending of non-invasive hemoglobin measurement during different volume and perfusion statuses", Journal of clinical monitoring, issue 32, pp. 1025-1031, 2018.
Ismail, M., F. Salah, and M. M. Osman, "Accuracy of calculating the real alpha- nucleus potential", Physical Review C, vol. 54, pp. 3308, 1996.
El-Dahab, O. A., M. Dahaba, H. Omar, and H. Mahrous, "Accuracy of Cone beam Computed Tomography and Conventional Tomography in Assessment of TMJ Osteoarthritic Changes", Cairo Dental Journal, vol. 28, issue 2, pp. 1:7, 2012.
Ismail, M. Y., M. M. Osman, and H. Elgebaly, "The accuracy of neglecting the S-dependence and its effect on the direct parts of α-α interaction potential", Journal of Applied Sciences Research, vol. 8, no. 3, pp. 1817-1823, 2012. AbstractWebsite

The study show the effect of the local density and the accuracy of neglecting s-dependence on direct part of α-α interaction potential. The large error in neglecting s-dependence produced at (R<2 fm) for BDM3Y3 -Ried force. In the surface and tail region (R≥3) the error is less than 50%.

Ismail, M. Y., M. M. Osman, and H. Elgebaly, "The accuracy of neglecting the s-dependence and its effect on the exchange parts of α-α interaction potential", Australian Journal of Basic and Applied Sciences, vol. 5, no. 11, pp. 120-125, 2011. AbstractWebsite

The study show the effect of the local density and the accuracy of neglecting s-dependence on the exchange part of α-α interaction potential. This effect is bout 30% for the force BDM3Y2-Ried while it is less than 7% for BDM3Y1 -Reid. For BDM3Y3 force which corresponds to large value of compressibility coefficient, the corresponding error is too large at separation distance R=0.

Ismail, M., M. M. Osman, and H. Elgebaly, "The Accuracy of Neglecting the S-Dependence and its Effect on the Exchange Parts of α–α Interaction Potential", Australian Journal of Basic and Applied Sciences, vol. 5(11), pp. 120-125, 2011. AbstractCU-PDF.pdf

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