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International Journal of Ophthalmology(English edition) 2022年第12期15卷 2031-2033页

作者： Hasan Mohidat omar S El-Mulki Abdelwahab Aleshawi Ophthalmology Division Department of Special SurgeryFaculty of MedicineJordan University of Science and TechnologyIrbid 22110Jordan Retina Fellow Department of OphthalmologyKing Abdullah University HospitalIrbid 22110Jordan

Dear Editor,I nternal limiting membrane(ILM)peeling with gas tamponade has been the preferred surgical technique for the macular hole treatment[1-2].Eckardt et al[1]achieved a complete closure of 92%of the macular ***,the procedure involves peeling of ILM from the macula using a microvitreoretinal blade with an intraocular forceps 500 mm superior to the hole,removal of membranes and releasing the traction around the macular *** a macular epiretinal membrane(ERM)is present,it should be peeled during the surgery[1-2].

关键词： macular limiting releasing

Earthquake and deterioration inclusive probabilistic life cycle assessment(EDP-LCA)framework for buildings

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Resilient Cities and Structures 2023年第3期2卷 30-40页

作者： Jorge Andrés Ramos Guerrero T.Y.Yang omar Swei Department of Civil Engineering The University of British ColumbiaVancouverCanada

With increasing demand to reduce the carbon emission of buildings,it is crucial to quantify the life cycle envi-ronmental impact of new buildings,including the environmental impact due to natural hazards,such as *** study presents a novel comprehensive probabilistic framework to quantify the environmental impact of buildings,including uncertainties in the material extraction and production,transportation,construction,seis-mic exposure and aging(including deterioration),and end-of-life *** developed framework is used to quantify the environmental impact of a 3-story residential building located in Vancouver,*** results show that there is a significant variation in the environmental impact of the prototype building in each stage of the life cycle *** the prototype building is hit by the design level earthquake,it is expected that the median environmental impact of the prototype will be further increased by 42%.In addition,by accounting for the probability of occurrence of different earthquakes within a 50-year design life of the prototype building,the earthquake related damage will result in an additional 5%of the initial carbon emission of the *** shows the importance of including earthquake hazard and deterioration in whole building life cycle assessments.

关键词： Seismic performance evaluation Life cycle assessment Structural deterioration Performance based earthquake engineering Sustainable buildings

Adsorptive removal of iron and manganese ions from aqueous solutions with microporous chitosan/polyethylene glycol blend membrane

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Journal of Environmental Sciences 2012年第8期24卷 1425-1432页

作者： Neama A.Reiad omar E.Abdel Salam Ehab F.Abadir Farid A.Harraz Sanitary&Environmental Department Housing&Building National Research Center87 el Tahrir st.DokkiEgypt Department of Chemical Engineering Faculty of EngineeringCairo UniversityGizaEgypt Advanced Materials Technology Department Central Metallurgical R&D InstituteHelwanEgypt

Microporous chitosan （CS） membranes were directly prepared by extraction of poly（ethylene glycol）（PEG） from CS/PEG blend membrane and were examined for iron and manganese ions removal from aqueous solutions. The different variables affecting the adsorption capacity of the membranes such as contact time, pH of the sorption medium, and initial metal ion concentration in the feed solution were investigated on a batch adsorption basis. The affinity of CS/PEG blend membrane to adsorb Fe（II） ions is higher than that of Mn（II） ions, with adsorption equilibrium achieved after 60 min for Fe（II） and Mn（II） ions. By increasing CS]PEG ratio in the blend membrane the adsorption capacity of metal ions increased. Among all parameters, pH has the most significant effect on the adsorption capacity, particularly in the range of 2.9-5.9. The increase in CS/PEG ratio was found to enhance the adsorption capacity of the membranes. The effects of initial concentration of metal ions on the extent of metal ions removal were investigated in detail. The experimental data were better fitted to Freundlich equation than Langmuir. In addition, it was found that the iron and manganese ions adsorbed on the membranes can be effectively desorbed in 0.1 mol/L HCl solution （up to 98% desorption efficiency） and the blend membranes can be reused almost without loss of the adsorption capacity for iron and manganese ions.

关键词： chitosan blend membrane iron and manganese ions adsorption

Comparison of treatment modalities in pancreatic pseudocyst: A population based study

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World Journal of Gastrointestinal Surgery 2019年第9期11卷 365-372页

作者： Yanting Wang Yazan Abu omar Rohit Agrawal Zimu Gong Department of Internal Medicine John H.Stroger Jr.Hospital of Cook CountyChicagoIL 60612United States Department of Internal Medicine AMITA Health St.Joseph Hospital-ChicagoChicagoIL 60657United States

BACKGROUND Current therapeutic techniques for pancreatic pseudocyst include surgical management with a laparoscopic approach or an open surgical procedure,percutaneous catheter drainage and endoscopic *** it remains controversial whether different treatment approaches affect inpatient *** To investigate inpatient outcome of different treatment approaches in treating pancreatic *** Here we conducted a retrospective analysis of pancreatic pseudocyst-associated hospitalizations using the Healthcare Cost and Utilization Project-Nationwide Inpatient *** Classification of Diseases 10 clinical modification and procedure codes are *** A total of 7060 patients meeting the above criteria were *** study revealed laparoscopic approach associated with the lowest rate of red blood cell transfusion(P<0.001),and it had lower short-term complications including acute renal failure(P=0.01),urinary tract infection(P=0.01),sepsis(P<0.001)and acute respiratory failure(P=0.01).Laparoscopic surgical approach associated with the shortest mean length of stay(P=0.009),and it had the lowest total charge(P=0.03).All three modalities have similar inpatient mortality(P=0.28).The study also revealed that percutaneous drainage associated with more emergent admission(P<0.001),rural hospital performs the most open surgical drainage(P<0.001)and patients who received laparoscopic drainage are more likely to be discharged home(P<0.001).CONCLUSION Laparoscopic drainage of pancreatic pseudocysts associated with the least shortterm complications and had better outcomes comparing to percutaneous and open surgical drainage from 2016 National Inpatient Sample database.

关键词： Pancreatic pseudocyst Acute pancreatitis Drainage Epidemiology Inpatient outcome

Preservation of the superior rectal artery in laparoscopic colectomy for slow transit constipation: Is it really associated with better outcomes?

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World Journal of Gastroenterology 2021年第38期27卷 6513-6514页

作者： Rogério Serafim Parra omar Feres JoséJoaquim Ribeiro Rocha Department of Surgery and Anatomy Ribeirao Preto Medical SchoolUniversity of São PauloRibeirao Preto 14048900Brazil

Few patients with slow-transit constipation refractory to conservative treatment can benefit with a subtotal colectomy with ileorectal anastomosis with the preservation of the superior rectal *** this letter to the editor some important issues were ***,the study did not include a comparison ***,they did not present the functional results in the short or long term related to the bowel function of these patients after ***,the authors showed that this surgical procedure was safe,and no cases of leakage were found.

关键词： Laparoscopy Colorectal surgery Constipation Colectomy

Antitumor effect of thymoquinone combined with resveratrol on mice transplanted with breast cancer

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Asian Pacific Journal of Tropical Medicine 2017年第4期10卷 378-386页

作者： omar H.Alobaedi Wamidh H.Talib Iman A.Basheti Department of Clinical Pharmacy&Therapeutics Facuty of PharmacyApplied Science Private UniversityAmmanJordan

Objective:To test the anticancer potential activity of the combination of thymoquinone(TQ)and resveratrol(RES) against breast cancer in ***:The antiproliferative activity of *** and their combination was assessed against three breast cancer cell lines and one normal cells using MTT *** combination index was calculated using isobolographic ***/C mice were inoculated with EMT6/P cells and in vivo antitumor activity was ***:The combination therapy caused significant decrease in tumor size with a percentage cure of 60%.The combination therapy induced geographic necrosis,enhanced apoptosis,and decreased VEGF *** levels of IFN-y were elevated in mice treated with combination therapy with no liver and kidney ***:The combination of TQ and RES against breast cancer in mice can work *** anticancer effect of this combination is mediated by apoptosis induction,angiogenesis inhibition and immune modulation.

关键词： Combination therapy Natural products Breast cancer Apoptosis

The role of imaging in immunoglobulin G4-related disease of the upper urinary tract

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Current Urology 2022年第2期16卷 77-82页

作者： Samih Taktak omar El-Taji Suresh Venugopal Department of Urology The Royal Liverpool University HospitalLiverpool University HospitalsNHS Foundation TrustLiverpoolL7 8XPUK

Background:Immunoglobulin G4-related disease remains a modern,relatively unknown field in the urological *** increasing number of cases require urological input,often with invasive diagnostics and aggressive medical treatment *** this,we sought to evaluate modern radiological options of disease affecting the upper urinary tract,to provide clarity and reduce diagnostic burden and delay in this poorly understood yet potentially debilitating disease ***:We conducted a systematic literature search including PubMed and Medline,focusing on immunoglobulin G4-related disease affecting the upper urinary tract,before reviewing articles assessing different radiological modalities in *** computed tomography findings have been demonstrated in the literature and contributed to recent breakthroughs in classification criteria,however invasive biopsy remains a mainstay in work-up,given the difficulties in comparing against *** work in positron-emission tomography and magnetic resonance imaging has shown promise in radiologically distinguishing from other differentials,especially diffusion-weighted imaging showing high sensitivity levels,but not yet enough to formulate protocols and cause histological investigation to be *** messages:Our article has highlighted repeated findings in the literature of computed tomography appearances of lgG4-RD in the upper urinary tract,however invasive work-up remains a mainstay given the overlap with ***,comparative studies into magnetic resonance imaging and positron-emission tomography are now required,given their early results,to improve consistency in reporting and reduce patient burden when investigating this benign,yet debilitating disease process.

关键词： Imaging Immunoglobulin-G4 Kidney Urinary tract

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Prevalence of intestinal parasite infections among patients in local public hospitals of Hail,Northwestern Saudi Arabia

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Asian Pacific Journal of Tropical Medicine 2016年第1期9卷 41-45页

作者： omar Hassen Amer Ibraheem M Ashankyty Najoua Al Sadok Haouas Department of Clinical Laboratory Science College of Applied Medical SciencesUniversity of Hail Departement de Biologie Clinique B Laboratoire de Parasitologie-Mycologie Medicate et Moleculaire(LR12ES08)Faculte de PharmacieUniversite de Monastir

Objective:To evaluate the prevalence of intestinal parasites among patients in Hail,Northwestern Saudi ***:Stool samples were collected from 130 patients(69females and 61 males) in Hail General *** sample was examined by direct wet mount microscopic examination using both normal saline and Lugol's iodine preparation and concentration techniques using salt and formol-ether *** stained smears were performed for intestinal coccidian using modified Ziehl-Neelsen ***:The overall prevalence of intestinal parasitic infection was 45.38%(59 cases).Forty-four(33.84%)were found to be infected with one or more intestinal protozoa.5(3.84%) were infected with helminthes and 10(7.69%) had mixed infection with both helminthes and *** most common intestinal helminth detected was Ancyloxtoma duvdenale(n=5.3.84%),followed by Ascaris *** *** Trichuris trichiura(n=2 for each species,1.5%).For intestinal protozoa,the coccidian Cryptosporidium parvum(n=25,19.23%) was the most common followed by Entamoeba histolytica/dispur(n=21,16.15%),Giurdia lamblia(n=15,11.54%),Entamoeba coli(n=5.3.85%) and Blastocysts hominis(n=3,2.30%).The prevalence of intestinal parasitic infections in females was significantly higher than in males(P<0.05).Conclusions:This is the first study highlighting that intestinal parasites are still an important public health problem in Northwestern Saudi Arabia Therefore,health education would be the best way to prevent from intestinal parasite infections which are mainly food borne diseases.

关键词： Prevalence Intestinal parasites Hail KSA

Game Theory-Based IoT Efficient Power Control in Cognitive UAV

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Computers, Materials & Continua 2022年第7期72卷 1561-1578页

作者： Fadhil Mukhlif Norafida Ithnin omar B.Abdulghafoor Faiz Alotaibi Nourah Saad Alotaibi Information Assurance and Security Research Group(IASRG) School of ComputingFaculty of EngineeringUniversiti Teknologi MalaysiaJohorMalaysia Electronic and Telecommunication Department College of EngineeringThe American University of KurdistanIraq Faculty of Computer Science and Information Technology Universiti Putra MalaysiaSelangorMalaysia Computer Department Faculty of Applied CollegeImam Abdulrahman Bin Faisal UniversityDammamSaudi Arabia

With the help of network densification,network coverage as well as the throughput can be improved via ultra-dense networks(UDNs).In tandem,Unmanned Aerial Vehicle(UAV)communications have recently garnered much attention because of their high agility as well as widespread *** this paper,a cognitive UAV is proposed for wireless nodes power pertaining to the IoT ground ***,the UAV is included in the IoT system as the source of power for the wireless nodes as well as for resource *** quality of service(QoS)related to the cognitive node was considered as a utility function based on pricing scheme that was modelled as a non-cooperative game theory in order to maximise users’net utility ***,an energy efficiency non-cooperative game theory power allocation with pricing scheme(EE-NGPAP)is proposed to obtain an efficient power control within IoT wireless ***,uniqueness and existence of the Nash equilibrium have been demonstrated mathematically and through *** results show that the proposed energy harvest algorithm demonstrated considerable decrease in transmitted power consumption in terms of average power reduction,which is regarded to be apt with the 5Gnetworks’***,the proposed algorithm requires around 4 iterations only to converge to NE which makes the algorithm more suitable in practical heterogeneous scenarios.

关键词： UAV drones WSN IoT game theory energy efficiency 5G&B5G networks

Secure and Reliable Routing in the Internet of Vehicles Network:AODV-RL with BHA Attack Defense

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Computer Modeling in Engineering & Sciences 2024年第4期139卷 633-659页

作者： Nadeem Ahmed Khalid Mohammadani Ali Kashif Bashir Marwan omar Angel Jones Fayaz Hassan School of Electronic Science Beijing University of Post and TelecommunicationBeijing100086China Department of Computer Science Huanggang Normal UniversityHuanggangChina Department of Computing and Mathematics Manchester Metropolitan UniversityManchesterUK Woxsen School of Business Woxsen UniversityHyderabad502345India Department of Computer Science and Mathematics Lebanese American UniversityBeirutLebanon Information Technology and Management Illinois Institute of TechnologyChicagoUSA College of Computing Capital Technology UniversityLaurelUSA

Wireless technology is transforming the future of transportation through the development of the Internet of Vehicles(IoV).However,intricate security challenges are intertwinedwith technological progress:Vehicular ad hoc Networks(VANETs),a core component of IoV,face security issues,particularly the Black Hole Attack(BHA).This malicious attack disrupts the seamless flow of data and threatens the network’s overall reliability;also,BHA strategically disrupts communication pathways by dropping data packets from legitimate nodes *** the importance of this challenge,we have introduced a new solution called ad hoc On-Demand Distance Vector-Reputation-based mechanism Local Outlier Factor(AODV-RL).The significance of AODVRL lies in its unique approach:it verifies and confirms the trustworthiness of network components,providing robust protection against *** additional safety layer is established by implementing the Local Outlier Factor(LOF),which detects and addresses abnormal network *** testing of our solution has revealed its remarkable ability to enhance communication in ***,Our experimental results achieve message delivery ratios of up to 94.25%andminimal packet loss ratios of just 0.297%.Based on our experimental results,the proposedmechanismsignificantly improves VANET communication reliability and *** results promise a more secure and dependable future for IoV,capable of transforming transportation safety and efficiency.

关键词： Black hole attack IoV vehicular ad hoc network AODV routing protocol