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97篇 您的检索式:作者名="Maarouf"
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1Model for end-stage liver disease score versus Child score in predicting the outcome of surgical procedures in patients with cirrhosis显示文摘AIM:To determine factors affecting the outcome of patients with cirrhosis undergoing surgery and to compare the capacities of the Child-Turcotte-Pugh(CTP) and model for end-stage liver disease(MELD)score to predict that outcome. METHODS:We reviewed the charts of 195 patients with cirrhosis who underwent surgery at two teaching hospitals over a five-year period.The combined endpoint of death or hepatic decompensation was considered to be the primary endpoint. RESULTS:Patients who reached the endpoint had a higher MELD score,a higher CTP score and were more likely to have undergone an urgent procedure.Among patients undergoing elective surgical procedures,no statistically significant difference was noted in the mean MELD(12.8±3.9 vs 12.6±4.7,P=0.9)or in the mean CTP(7.6±1.2 vs 7.7±1.7,P=0.8)between patients who reached the endpoint and those who did not.Both mean scores were higher in the patients reaching the endpoint in the case of urgent procedures(MELD:22.4± 8.7 vs 15.2±6.4,P=0.0007;CTP:9.9±1.8 vs 8.5±1.8, P=0.008).The performances of the MELD and CTP scores in predicting the outcome of urgent surgery were only fair,without a significant difference between them (AUC=0.755±0.066 for MELD vs AUC=0.696±0.070 for CTP,P=0.3). CONCLUSION:The CTP and MELD scores performedequally,but only fairly in predicting the outcome of urgent surgical procedures.Larger studies are needed to better define the factors capable of predicting the outcome of elective surgical procedures in patients with cirrhosis.Maarouf A Hoteit Amaar H Ghazale Andrew J Bain Eli S Rosenberg Kirk A Easley Frank A Anania Robin E Rutherford 2008World Journal of Gastroenterology2008,14,11:16
2Potential Toxicological and Cardiopulmonary Effects of PM2,5 Exposure and Related Mortality:Findings of Recent Studies Published during 2003-2013显示文摘INTRODUCTION Air pollution has become a serious environmental issue owing to its diverse harmful effects on the physical and biological environment.According to the Environmental Protection Agency(EPA)and the World Health Organization(WHO)[1-2],air pollution affects millions of people worldwide.Hundreds of thousands of deaths each year and a range of diseases,Mohammed O.A.Mohammed SONG Wei Wei MA Wan Li LI Wen Long LI Yi Fan Afed Ullah Khan Mohammed A.E.M.Ibrahim Osman Adam Maarouf Alshebli A Ahmed John J.Ambuchi 2016Biomedical and Environmental Sciences2016,29,1:16
3Clinical significance of main pancreatic duct dilation on computed tomography: Single and double duct dilation显示文摘AIM: To study the patients with main pancreatic duct dilation on computed tomography (CT) and thereby to provide the predictive criteria to identify patients at high risk of significant diseases, such as pancreatic cancer, and to avoid unnecessary work up for patients at low risk of such diseases. METHODS: Patients with dilation of the main pancreatic duct on CT at Emory University Hospital in 2002 were identified by computer search. Clinical course and ultimate diagnosis were obtained in all the identified patients by abstraction of their computer database records. RESULTS: Seventy-seven patients were identified in this study. Chronic pancreatitis and pancreatic cancer were the most common causes of the main pancreatic duct dilation on CT. Although the majority of patients with isolated dilation of the main pancreatic duct (single duct dilation) had chronic pancreatitis, one-third of patients with single duct dilation but without chronic pancreatitis had pancreatic malignancies, whereas most of patients with concomitant biliary duct dilation (double duct dilation) had pancreatic cancer. CONCLUSION: Patients with pancreatic double duct dilation need extensive work up and careful followup since a majority of these patients are ultimately diagnosed with pancreatic cancer. Patients with single duct dilation, especially such patients without any evidence of chronic pancreatitis, also need careful follow-up since the possibility of pancreatic malignancy, including adenocarcinoma and intraductal papillary mucinous tumors, is still high.Mark D Edge Maarouf Hoteit Amil P Patel Xiaoping Wang Deborah A Baumgarten Qiang Cai 2007World Journal of Gastroenterology2007,13,11:9
4Risk for Immune-Mediated Graft Dysfunction in Liver Transplant Recipients With Recurrent HCV Infection Treated With Pegylated Interferon显示文摘Josh Levitsky Maria Isabel Fiel John P. Norvell Edward Wang Kymberly D. Watt Michael P. Curry Sumeet Tewani Timothy M. McCashland Maarouf A. Hoteit Abraham Shaked Samuel Saab Amanda C. Chi Amy Tien Thomas D. Schiano 2012Gastroenterology2012,,5:3
5Distributed active fault tolerant control design against actuator faults for multiple mobile robots显示文摘This paper investigates the active fault tolerant cooperative control problem for a team of wheeled mobile robots whose actuators are subjected to partial or severe faults during the team mission.The cooperative robots network only requires the interaction between local neighbors over the undirected graph and does not assume the existence of leaders in the network.We assume that the communication exists all the time during the mission.To avoid the system's deterioration in the event of a fault,a set of extended Kalman filters(EKFs)are employed to monitor the actuators'behavior for each robot.Then,based on the online information given by the EKFs,a reconfigurable sliding mode control is proposed to take an appropriate action to accommodate that fault.In this research study,two types of faults are considered.The first type is a partial actuator fault in which the faulty actuator responds to a partial of its control input,but still has the capability to continue the mission when the control law is reconfigured.In addition,the controllers of the remaining healthy robots are reconfigured simultaneously to move within the same capability of the faulty one.The second type is a severe actuator fault in which the faulty actuator is subjected to a large loss of its control input,and that lead the exclusion of that faulty robot from the team formation.Consequently,the remaining healthy robots update their reference trajectories and form a new formation shape to achieve the rest of the team mission.Mahmoud HUSSEIN Jawhar GHOMMAM Azeddine GHODBANE Maarouf SAAD Vahe NERGUIZIAN 2019Control Theory and Technology2019,17,4:2
6In- direct adaptive control of an dectrohydraulic servo sys- tem based on nonlinear backstepping显示文摘Claude Kaddissi Jean-Pierre Kenne Maarouf Saad 2011IEEE Transac- tions on Mechatronics2011,16,6:1
7Formation path following control of unicycle-type mobile robots显示文摘Jawhar Ghommam Hasan Mehrjerdi Maarouf Saad 2010Robotics and Autonomous Systems2010,58,5:1
8Adverse maternal and neonatal outcome of prolonged course of magnesium sulfate tocolysis显示文摘Nassar A H Sakhei K Maarouf H 2006ActaObstetGynecol Scan2006,85,9:1
9Nonlinear coordination control for a group of mobile robotsusing a virtual structure显示文摘Hasan Mehrjerdi Jawhar Ghommam Maarouf Saad 2011Mechatronics2011,21,7:1
10Use of polysialic acid in repair of the central nervous system显示文摘El Maarouf A Petridis AK Rutishauser U 2006Proc Natl Acad Sci USA2006,103,16:1
11Brachytherapy:Results of two different therapy strategies for patients with primary glioblastoma multiforme显示文摘Koot RW Maarouf M Hulshof MC 2000Gancer2000,88,12:1
12Identification and real-time control of an electro-hydraulic servo system based on nonlinear backstepping显示文摘Claude Kaddissi Jean-Pierre Maarouf Saad 2007IEEE Transactions on Mechatronics2007,12,1:1
13Alzheimer's disease and nondemented high pathology control nonagenarians:comparing and contrasting the biochemistry of cognitively successful aging显示文摘Maarouf CL Daugs ID Kokjohn TA 2011PLo S One2011,6,27:1
14Enzymatic activity and gene expression under water stress of phospholipase D in two cultivars of Vigna unguiculata L.Walp. differing in drought tolerance显示文摘Hayat El Maarouf Yasmine Zuily-Fodil Monique Gareil Agnès d’Arcy-Lameta Anh Thu Pham-Thi 1999Plant Molecular Biology1999,,6:1
15Use of PSA-NCAM in repair of the central nervous system 显示文摘Maarouf AE Rutishauser U 2010Adv Exp Med Bio12010,663,67:1
16Brachytherapy:Results of two different therapy strategies for patients with primary gliob- lastoma multiforme显示文摘Koot RW Maarouf M Hulshof MC 2000Cancer2000,88,12:1
17The renal papilla is a niche for adult kidney stem cells显示文摘Oliver JA Maarouf O Cheema FH 2004J Clin Invest2004,114,6:1
18An Adaptive Full Order Sliding Mode Controller for Mismatched Uncertain Systems显示文摘In this paper, an adaptive full order sliding mode(FOSM) controller is proposed for strict feedback nonlinear systems with mismatched uncertainties. The design objective of the controller is to track a specified trajectory in presence of significant mismatched uncertainties. In the first step the dynamic model for the first state is considered by the desired tracking signal. After the first step the desired dynamic model for each state is defined by the previous one. An adaptive tuning law is developed for the FOSM controller to deal with the bounded system uncertainty. The major advantages offered by this adaptive FOSM controller are that advanced knowledge about the upper bound of the system uncertainties is not a necessary requirement and the proposed method is an effective solution for the chattering elimination from the control signal. The controller is designed considering the full-order sliding surface.System robustness and the stability of the controller are proved by using the Lyapunov technique. A systematic adaptive step by step design method using the full order sliding surface for mismatched nonlinear systems is presented. Simulation results validate the effectiveness of the proposed control law.Sanjoy Mondal Jawhar Ghommam Maarouf Saad 2017International Journal of Automation and computing2017,14,2:1
19Intracranial atherosclerosisas a contributing factor to A|zheimer's disease dementia显示文摘Roher AE Tyas SL Maarouf CL 2011Alzhe- imers Dement2011,7,:1
20Seed dor- mancy alleviation and oxidative signaling显示文摘Bailly C EI Maarouf Bouteau H Corbineau F 2008J Soc Biol2008,202,3:1
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