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  1. No Access

    Chapter and Conference Paper

    Land Subsidence Monitoring and Analysis in Louisiana Using GNSS Daily Solutions

    Land subsidence affects the vertical control component of the height system in Louisiana at a state-wide level. The National Height Modernization System (NSRS) has been initiated by the National Geodetic Surve...

    Ahmed Abdalla, Rui Fernandes, Machiel Bos in Selected Studies in Geophysics, Tectonics … (2024)

  2. No Access

    Chapter and Conference Paper

    Improvement of Sudan Gravity Field Using Geopotential and Altimetry Data

    The gravity measurements in Sudan are sparse and few compared to the country area. The currently available measurements were conducted for the sake of mining and oil exploration between the 1970s and mid of 19...

    Ahmed Abdalla in Selected Studies in Geophysics, Tectonics and Petroleum Geosciences (2024)

  3. Article

    Open Access

    Long Biliopancreatic Limb Roux-En-Y Gastric Bypass Versus One-Anastomosis Gastric Bypass: a Randomized Controlled Study

    Roux-en-Y gastric bypass (RYGB) is the gold standard in bariatric surgery. The one-anastomosis gastric bypass (OAGB) procedure, first introduced by Dr. Rutledge, has demonstrated a 25% greater weight loss effi...

    Mohamed AbdAlla Salman, Ahmed Abelsalam, George Abdelfady Nashed in Obesity Surgery (2023)

  4. No Access

    Article

    A semi-vectorized and relationally-operated algorithm for fast geoid computation using Stokes’s integration

    We propose an optimization algorithm to speed up the computation of a high-frequency geoid based on the surface integral of Stokes’s formula. Stokes’s integral computes high-frequency geoid undulations from th...

    Ahmed Abdalla, Vagner Ferreira in Earth Science Informatics (2022)

  5. No Access

    Article

    Real-world data of off-label drug use in patients with actionable genomic alterations on next-generation sequencing

    Introduction We analyzed the outcomes of patients with advanced cancers in our institution treated with off-label drugs targeting actionable genomic alteration based on next-generation sequencing who did not qual...

    Gabriel Roman Souza, Ahmed Abdalla, Sukeshi Arora in Investigational New Drugs (2022)

  6. No Access

    Article

    Secondary Hyperparathyroidism Before and After Bariatric Surgery: a Prospective Study with 2-Year Follow-Up

    Secondary hyperparathyroidism (SHPT) is linked to obesity. Bariatric surgery may be associated with calcium and vitamin D deficiencies leading to SHPT. This study aimed to detect the prevalence of SHPT before ...

    Mohamed AbdAlla Salman, Ahmed Salman, Ahmed Elewa, Ahmed Rabiee in Obesity Surgery (2022)

  7. No Access

    Article

    Development of Sudan gravity field by combining local and global data

    The legacy of Sudan gravity data was extensively collected over 15 years for oil exploration after small-scale gravity campaigns designated for groundwater investigations. However, the acquired gravity data se...

    Ahmed Abdalla in Arabian Journal of Geosciences (2021)

  8. No Access

    Article

    Dual versus triple therapy for patients with atrial fibrillation and acute coronary syndrome: a meta-analysis and trial sequential analysis of randomized controlled trials

    Babikir Kheiri, Mohammed Osman, Ahmed Bakhit in Journal of Thrombosis and Thrombolysis (2019)

  9. No Access

    Article

    Restrictive versus liberal red blood cell transfusion for cardiac surgery: a systematic review and meta-analysis of randomized controlled trials

    Patients undergoing cardiac surgery are among the most common recipients of allogeneic red blood cell (RBC) transfusions. However, whether restrictive RBC transfusion strategies for cardiac surgery achieve a s...

    Babikir Kheiri, Ahmed Abdalla, Mohammed Osman in Journal of Thrombosis and Thrombolysis (2019)

  10. No Access

    Article

    Clopidogrel and aspirin after ischemic stroke or transient ischemic attack: an updated systematic review and meta-analysis of randomized clinical trials

    Recurrent stroke is common immediately following a transient ischemic attack (TIA) or ischemic stroke. Dual antiplatelet therapy (DAPT) with clopidogrel and aspirin may provide greater protection against subse...

    Babikir Kheiri, Mohammed Osman, Ahmed Abdalla in Journal of Thrombosis and Thrombolysis (2019)

  11. Article

    Open Access

    Correction to: Vitamin D deficiency and risk of cardiovascular diseases: a narrative review

    In the original publication of this article [1], the reference number [42] under the section ‘vitamin D and Cardiovascular diseases’ (page no.2) should be [37].

    Babikir Kheiri, Ahmed Abdalla, Mohammed Osman, Sahar Ahmed in Clinical Hypertension (2018)

  12. No Access

    Article

    Tenecteplase versus alteplase for management of acute ischemic stroke: a pairwise and network meta-analysis of randomized clinical trials

    Tenecteplase is a genetically mutated variant of alteplase with superior pharmacodynamic and pharmacokinetic properties. However, its efficacy and safety in acute ischemic strokes are limited. Hence, we conduc...

    Babikir Kheiri, Mohammed Osman, Ahmed Abdalla in Journal of Thrombosis and Thrombolysis (2018)

  13. No Access

    Article

    Ticagrelor versus clopidogrel after fibrinolytic therapy in patients with ST-elevation myocardial infarction: a systematic review and meta-analysis of randomized clinical trials

    Dual antiplatelet therapy with aspirin and clopidogrel are recommended as adjuncts to fibrinolytic-treated patients with ST-elevation myocardial infarction (STEMI). However, the role of switching to ticagrelor...

    Babikir Kheiri, Mohammed Osman, Ahmed Abdalla in Journal of Thrombosis and Thrombolysis (2018)

  14. No Access

    Article

    Non-vitamin K antagonist oral anticoagulants in cardioversion of atrial fibrillation: a network meta-analysis

    Babikir Kheiri, Tarek Haykal, Ahmed Abdalla in Journal of Thrombosis and Thrombolysis (2018)

  15. Article

    Open Access

    Vitamin D deficiency and risk of cardiovascular diseases: a narrative review

    Vitamin D, a fat-soluble prohormone, has wide-ranging roles in the regulation of many physiological processes through their interactions with the vitamin D receptors (VDR). It plays a major role in bones and c...

    Babikir Kheiri, Ahmed Abdalla, Mohammed Osman, Sahar Ahmed in Clinical Hypertension (2018)

  16. Article

    Open Access

    Subarray-based FDA radar to counteract deceptive ECM signals

    In recent years, the frequency diverse array (FDA) radar concept has attracted extensive attention, as it may benefit from a small frequency increment, compared to the carrier frequency across the array elemen...

    Ahmed Abdalla, Wen-Qin Wang, Zhao Yuan in EURASIP Journal on Advances in Signal Proc… (2016)

  17. No Access

    Article

    Utilisation of Fast Fourier Transform and Least-squares Modification of Stokes formula to compile a gravimetric geoid model over Khartoum State: Sudan

    We use Fast Fourier Transform (FFT) and least-squares modification (LSM) of Stokes formula to compute the geoid over Khartoum State in Sudan. The two methods (FFT and LSM) have been utilised to test their effi...

    Ahmed Abdalla, Chris Green in Arabian Journal of Geosciences (2016)

  18. No Access

    Article

    Apparent diffusion coefficient value of hepatic fibrosis and inflammation in children with chronic hepatitis

    This study was done to prospectively evaluate the usefulness of apparent diffusion coefficient (ADC) in the diagnosis and grading of hepatic fibrosis and inflammation in children with chronic hepatitis.

    Ahmed Abdel Khalek Abdel Razek, Mohamed Khashaba, Ahmed Abdalla in La radiologia medica (2014)

  19. No Access

    Article

    Minimal hepatic encephalopathy in children with liver cirrhosis: diffusion-weighted MR imaging and proton MR spectroscopy of the brain

    The aim of this work was to detect minimal hepatic encephalopathy (minHE) in children with diffusion-weighted MR imaging (DWI) and proton magnetic resonance spectroscopy (1H-MRS) of the brain.

    Ahmed Abdel Khalek Abdel Razek, Ahmed Abdalla, Amany Ezzat, Ahmed Megahed in Neuroradiology (2014)

  20. No Access

    Article

    Proton MR Spectroscopy of the brain in children with neuronopathic Gaucher’s disease

    To assess the clinical usefulness of proton magnetic resonance spectroscopy (1H-MRS) in children with neuronopathic Gaucher’s disease (NGD).

    Ahmed Abdel Khalek Abdel Razek, Ahmed Abdalla, Nahed Abdel Gaber in European Radiology (2013)

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