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10篇 您的检索式:作者名="Elkafrawy"
    题名 作者 年代 出处 被引量
1Removal of catechol from aqueous solutions by adsorption onto organophilicbentonite显示文摘Shakir K Ghoneimy H F Elkafrawy A F 2008J Hazard Mater2008,15,3:1
2J Hazard Mater 显示文摘Shakir K Ghoneimy H F Elkafrawy A E 200815(3): 765-7732008,15,3:1
3Removal of rhodamine B (a basic dye) and thoron (an acidic dye) from dilute aqueous solutions and wastewater simulants by ion flotation显示文摘Kamal Shakir Ahmed Faouzy Elkafrawy Hussein Fouad Ghoneimy Shokry Gad Elrab Beheir Mamdoh Refaat 2009Water Research2009,,5:1
4Removal of catechol from aqueous solutions by adsorption onto organophilic-bentonite显示文摘Shakir K Ghoneimy H F Elkafrawy A F 2008J Hazard Mater2008,15,3:1
5Removal of catechol from aqueous solutions by adsorption onto organophilic- bentonite显示文摘Shakir K Ghoneimy H F Elkafrawy A F 2008Journal of Hazardous Materials2008,150,3:1
6Removal of catechol from aqueous solutions hy adsorption onto organophilic- bentonite显示文摘Shakir K Ghoneimy H F Elkafrawy A F 2008Journal of hazardous materials2008,150,:1
7Removal of rhodamine B (a basic dye) and thoron (an acidic dye) from dilute aqueous solutions and wastewater simulants by ion flotation 显示文摘Shakir K Elkafrawy A F Ghoneimy H F 2010Water Research2010,44,5:1
8Automated classification technique for edge-on galaxies based on mathematical treatment of brightness data显示文摘Classification of edge-on galaxies is important to astronomical studies due to our Milky Way galaxy being an edge-on galaxy.Edge-on galaxies pose a problem to classification due to their less overall brightness levels and smaller numbers of pixels.In the current work,a novel technique for the classification of edge-on galaxies has been developed.This technique is based on the mathematical treatment of galaxy brightness data from their images.A special treatment for galaxies’brightness data is developed to enhance faint galaxies and eliminate adverse effects of high brightness backgrounds as well as adverse effects of background bright stars.A novel slimness weighting factor is developed to classify edge-on galaxies based on their slimness.The technique has the capacity to be optimized for different catalogs with different brightness levels.In the current work,the developed technique is optimized for the EFIGI catalog and is trained using a set of 1800 galaxies from this catalog.Upon classification of the full set of 4458 galaxies from the EFIGI catalog,an accuracy of 97.5% has been achieved,with an average processing time of about 0.26 seconds per galaxy on an average laptop.Mohamed Eassa Ibrahim Mohamed Selim Walid Dabour Passent Elkafrawy 2021Research in Astronomy and Astrophysics2021,21,10:0
9Cardiac stem cells: Current knowledge and future prospects显示文摘Regenerative medicine is the field concerned with the repair and restoration of the integrity of damaged human tissues as well as whole organs.Since the inception of the field several decades ago,regenerative medicine therapies,namely stem cells,have received significant attention in preclinical studies and clinical trials.Apart from their known potential for differentiation into the various body cells,stem cells enhance the organ's intrinsic regenerative capacity by altering its environment,whether by exogenous injection or introducing their products that modulate endogenous stem cell function and fate for the sake of regeneration.Recently,research in cardiology has highlighted the evidence for the existence of cardiac stem and progenitor cells(CSCs/CPCs).The global burden of cardiovascular diseases’morbidity and mortality has demanded an in-depth understanding of the biology of CSCs/CPCs aiming at improving the outcome for an innovative therapeutic strategy.This review will discuss the nature of each of the CSCs/CPCs,their environment,their interplay with other cells,and their metabolism.In addition,important issues are tackled concerning the potency of CSCs/CPCs in relation to their secretome for mediating the ability to influence other cells.Moreover,the review will throw the light on the clinical trials and the preclinical studies using CSCs/CPCs and combined therapy for cardiac regeneration.Finally,the novel role of nanotechnology in cardiac regeneration will be explored.Radwa A Mehanna Marwa M Essawy Mona A Barkat Ashraf K Awaad Eman H Thabet Heba A Hamed Hagar Elkafrawy Nehal A Khalil Abeer Sallam Marwa A Kholief Samar S Ibrahim Ghada M Mourad 2022World Journal of Stem Cells2022,14,1:0
10Safety of gastrointestinal endoscopy in patients with acute coronary syndrome and concomitant gastrointestinal bleeding显示文摘BACKGROUND Gastrointestinal bleeding(GIB)is a major concern in patients hospitalized with acute coronary syndrome(ACS)due to the common use of both antiplatelet medications and anticoagulants.Studies evaluating the safety of gastrointestinal endoscopy(GIE)in ACS patients with GIB are limited by their relatively small size,and the focus has generally been on upper GIB and esophago-gastroduodenoscopy(EGD)only.AIM To evaluate the safety profile and the hospitalization outcomes of undergoing GIE in patients with ACS and concomitant GIB using the national database for hospitalized patients in the United States.METHODS The Nationwide Inpatient Sample database was queried to identify patients hospitalized with ACS and GIB during the same admission between 2005 and 2014.The International Classification of Diseases Code,9th Revision Clinical Modification was utilized for patient identification.Patients were further classified into two groups based on undergoing endoscopic procedures(EGD,small intestinal endoscopy,colonoscopy,or flexible sigmoidoscopy).Both groups were compared regarding demographic information,outcomes,and comorbidities.Multivariate analysis was conducted to identify factors associated with mortality and prolonged length of stay.Chi-square test was used to compare categorical variables,while Student’s t-test was used to compare continuous variables.All analyses were performed using SAS 9.4(Cary,NC,United States).RESULTS A total of 35612318 patients with ACS were identified between January 2005 and December 2014.269483(0.75%)of the patients diagnosed with ACS developed concomitant GIB during the same admission.At least one endoscopic procedure was performed in 68%of the patients admitted with both ACS and GIB.Patients who underwent GIE during the index hospitalization with ACS and GIB had lower mortality(3.8%)compared to the group not undergoing endoscopy(8.6%,P<0.001).A shorter length of stay(LOS)was observed in patients who underwent GIE(mean 6.59±7.81 d)compared to the group not undergoing endoscopy(mean 7.84±9.73 d,P<0.001).Multivariate analysis showed that performing GIE was associated with lower mortality(odds ratio:0.58,P<0.001)and shorter LOS(-0.36 factor,P<0.001).CONCLUSION Performing GIE during the index hospitalization of patients with ACS and GIB was correlated with a better mortality rate and a shorter LOS.Approximately twothirds of patients with both ACS and GIB undergo GIE during the same hospitalization.Ahmed A Elkafrawy Mohamed Ahmed Mohammad Alomari Ahmed Elkaryoni Kevin F Kennedy Wendell KClarkston Donald R Campbell 2021World Journal of Clinical Cases2021,9,5:0
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