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Privacy Enhanced Mobile User Authentication Method Using Motion Sensors

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Computer Modeling in Engineering & Sciences 2024年第3期138卷 3013-3032页

作者： Chunlin Xiong Zhengqiu Weng Jia Liu Liang gu fayez Alqahtani Amr gafar Pradip Kumar Sharma Shenzhen Institutes of Advanced Technology Chinese Academy of SciencesShenzhen518052China Sangfor Technologies Inc. Shenzhen518055China School of Data Science and Artificial Intelligence Wenzhou University of TechnologyWenzhou325035China College of Computer Science&Technology Zhejiang University of TechnologyHangzhou310023China Software Engineering Department College of Computer and Information SciencesKing Saud UniversityRiyadh12372Saudi Arabia Math&Computer Science Department Faculty of ScienceMenofia UniversityShebin El-KomEgypt Computing Science Department University of AberdeenAberdeenUK

With the development of hardware devices and the upgrading of smartphones,a large number of users save privacy-related information in mobile devices,mainly smartphones,which puts forward higher demands on the protection of mobile users’privacy *** present,mobile user authenticationmethods based on humancomputer interaction have been extensively studied due to their advantages of high precision and non-perception,but there are still shortcomings such as low data collection efficiency,untrustworthy participating nodes,and lack of *** this end,this paper proposes a privacy-enhanced mobile user authentication method with motion sensors,which mainly includes:(1)Construct a smart contract-based private chain and federated learning to improve the data collection efficiency of mobile user authentication,reduce the probability of the model being bypassed by attackers,and reduce the overhead of data centralized processing and the risk of privacy leakage;(2)Use certificateless encryption to realize the authentication of the device to ensure the credibility of the client nodes participating in the calculation;(3)Combine Variational Mode Decomposition(VMD)and Long Short-TermMemory(LSTM)to analyze and model the motion sensor data of mobile devices to improve the accuracy of model *** experimental results on the real environment dataset of 1513 people show that themethod proposed in this paper can effectively resist poisoning attacks while ensuring the accuracy and efficiency of mobile user authentication.

关键词： Mobile authentication blockchain federated learning smart contract certificateless encryption VMD LSTM

Constructing a small organic molecule by using the derivative of oxadiazole for photovoltaic applications

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Optoelectronics Letters 2024年

作者： HUSSEIN K.MEJBEL ABDIULRSOOL H.AL-TAHER fayez A.NAMAH LAfY f.AL-BADRY Department of Physics College of Education for Pure Science University of Thi-Qar Directorate-general for Education Dhi Qar Department of Physics College of Science University of Thi-Qar

Because of their elasticity， light weight， little cost， and wide-area applications， besides that a notable increase in power conversion efficiency （PCE）， organic solar cells have recently caught the concern of numerous researchers. In the current project， we created a variety of organic small compounds as donor materials by using gaussian 09. Our design approach entails swapping the core part， which is benzothiadiazole （BT）， based on a derivative of oxadiazole， as the terminals on both sides of the prototype compound （RM） with a variety of fragments to improve the electronic and optic characterization and performance for PCE in organic solar cells. Careful theoretical consideration under density-functional theory DfT and time-dependent density functional theory TD-DET at the B3LYP/6-31g（d，p） basis set was made to find the maximum absorption wavelengthλmax， the efficiency of light harvesting （LHE）， excitation energy (EX)， HOMO and LOMO levels， energy band gap (Eg)， dipole moment （ρ）， the DOS， ionization potential （LP）， electron affinity （EA）， fill factor （Ef）， and open circuit voltage (Voc) of molecules RM and TSstudied in a methodical manner. Calculated values revealed that proposed compounds T1-T4 can be encouraging materials for manufacturing organic solar cells as a donor tiny compound with acceptor PC61BM to predict a rise in power conversion efficiency （PCE） owing to their possession of proper values for some optical and electronic features， like the lowest HOMO level， narrower band gaps， and a greater absorption wavelength compared with the reference model RM.

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Efficacy and safety of treatment of hepatitis C virus infection in renal transplant recipients

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World Journal of gastroenterology 2012年第1期18卷 55-63页

作者： Abdulrahman A Aljumah Mohamed A Saeed Ahmed I Al flaiw Ibrahim H Al Traif Abduljaleel M Al Alwan Salem H Al Qurashi ghormallah A Al ghamdi fayez f Al Hejaili Mohammed A Al Balwi Abdulla A Al Sayyari Division of Hepatology Department of Hepatobiliary Sciences and Liver Transplantation King Abdulaziz Medical City and King Saud bin Abdulaziz University for Health Sciences National Guard Health Affairs Division of Nephrology and Renal Transplantation Department of Medicine King Abdulaziz Medical City and King Saud bin Abdulaziz University for Health Sciences National Guard Health Affairs Division of Molecular Pathology and genetics King Abdulaziz Medical City and King Saud bin Abdulaziz University for Health Sciences National Guard Health Affairs

AIM: To assess the efficacy and safety of combinedpegylated interferon and ribavirin therapy in hepatitis C virus (HCV) infection in renal transplant recipients. METHODS: This is a retrospective chart review of post renal transplant patients who were positive for anti-HCV and HCV-RNA, and who have received treatment with combination of pegylated interferon and ribavirin between October 2003 and December 2008. Only patients with stable graft function and absence of evidence of cirrhosis and who received the therapy for continuous 48 wk were included. Nineteen patients (13 male and 6 female) were identified and included. The patient's complete blood count, liver and kidney prof ile, and cal- culated glomerular f iltration rate (gfR) were monitored every 6-8 wk while on treatment. HCV-RNA was tested at 12 wk for early virological response, at 48 wk for end of treatment response (ETR), and then retested at 24, and 48 wk after completion of therapy for sustained virological response (SVR). Liver biopsies were obtained before treatment from all patients and graft kidney biopsies were performed as required. RESULTS: Of the entire cohort, 9 patients (47.4%) showed an ETR and 8 had SVR (42.1%). Of the 8 patients with abnormal alanine aminotransferase (ALT) levels at baseline, 78.9% had their ALT normalized (including the virological non responders). ALT was normal in all responders at the end of therapy and at 24 wk post therapy (100%). Only one patient (5.3%) developed an increase in creatinine and decline in gfR from baseline towards the end of treatment. This patient's kidney biopsy revealed borderline rejection. There was no impact on response by HCV-genotype, initial HCV RNA load, age or sex of the patient or duration post transplant before commencement of therapy. All patients tolerated treatment in the same way as non-transplant with no unusual or increased occurrence of side effects. CONCLUSION: The combination of pegylated interferon and ribavirin is effective in su

关键词： Allograft rejection Hepatitis C Pegylated interferon Ribavirin Renal transplant

Risk prediction rule for advanced neoplasia on screening colonoscopy for average-risk individuals

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World Journal of gastroenterology 2020年第37期26卷 5705-5717页

作者： Ala I Sharara Ali El Mokahal Ali H Harb Natalia Khalaf fayez S Sarkis Mustapha M El-Halabi Nabil M Mansour Ahmad Malli Robert Habib Division of gastroenterology Department of Internal MedicineAmerican University of Beirut Medical CenterBeirut 11072020Lebanon Digestive and Liver Diseases Division University of Texas-SouthwesternDallasTX 75390United States Division of gastroenterology Department of Internal MedicineBaylor College of MedicineHoustonTX 77030United States Division of gastroenterology and Hepatology University of Kansas Medical CenterKansas CityMO 66160United States Division of gastroenterology St Elizabeth HealthcareCrestview HillsKY 41017United States Department of Internal Medicine Section of Gastroenterology and HepatologyBaylor College of MedicineHoustonTX 77030United States gastroenterology Hennepin HealthcareMinneapolisMN 55404United States Department of Internal Medicine American University of BeirutBeirut 11072020Lebanon

BACKgROUND In resource-limited countries,risk stratification can be used to optimize colorectal cancer *** prospective risk prediction models exist for advanced neoplasia(AN)in true average-risk *** To create and internally validate a risk prediction model for detection of AN in METHODS Prospective study of asymptomatic individuals undergoing first screening *** characteristics including diet,exercise and medications were *** logistic regression was used to elucidate risk factors for AN(adenoma≥1 cm,villous histology,high-grade dysplasia or carcinoma).The model was validated through bootstrapping,and discrimination and calibration of the model were *** 980 consecutive individuals(51%f;49%M)were *** and AN detection rates were 36.6%(f 29%:M 45%;Pf 3.8%;M 6.5%)*** multivariate analysis,predictors of AN[OR(95%CI)]were age[1.036(1.00-1.07);P=0.048],BMI[overweight 2.21(0.98-5.00);obese 3.54(1.48-8.50);P=0.018],smoking[grams of AN risk were developed in terms of risk factors and age separately for normal,overweight and obese *** model had good discrimination and *** The prevalence of adenoma and AN in average-risk Lebanese individuals is similar to the ***,smoking,and BMI are important predictors of AN,with obesity being particularly *** external validation is needed,this model provides an important platform for improved risk-stratification for screening programs in regions where universal screening is not currently employed.

关键词： Colon Adenoma Cancer Risk factors

Occurrence and Some Ecological Aspects of the golden Jackal (<i>Canis aureus</i>Linnaeus, 1758) in the gaza Strip, Palestine

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Open Journal of Ecology 2021年第2期11卷 105-125页

作者： Abdel fattah N. Abd Rabou Kamal E. Elkahlout fayez A. Almabhouh Walid f. Mohamed Norman A. Khalaf Mona A. Al-Sadek Randa N. Alfarra Lamis T. Al-Moqayed Ashraf A. Shafei Nedal A. fayyad Belal S. Adeem Ayman W. Dardona Abdallah S. Awad Mohammed R. Al-Agha Mohammed A. Abd Rabou Department of Biology and Biotechnology Faculty of Science Islamic University of Gaza Gaza Palestine Department of Biological and geological Sciences Faculty of Education Ain Shams University Roxy Cairo Egypt Department of Environmental Research and Media National Research Center Palestine Accreditation and Quality Commission Ministry of Education and Higher Education Gaza Palestine Department of Curricula and Teaching Methods Islamic University of Gaza Gaza Palestine Ministry of Education and Higher Education Gaza Palestine Environment Quality Authority Gaza Palestine Department of Medical Laboratory Sciences Faculty of Health Sciences Islamic University of Gaza Gaza Palestine Department of Environment and Earth Sciences Faculty of Science Islamic University of Gaza Gaza Palestine Department of Information Technology University College of Applied Sciences Gaza Palestine

The golden Jackal (Canis aureus Linnaeus, 1758), which belongs to the Canidae family, is an opportunist carnivore in the gaza Strip (365 square kilometers). The current study aims at giving notes on the occurrence and some ecological aspects of the species in the gaza Strip, Palestine. The study, which lasted 14 years (2007-2020), is descriptive and cumulative in its style. It was based on frequent field visits, direct observations and meetings and discussions with wildlife hunters, farmers and other stakeholders. The findings of the study show that gazans are familiar with the golden Jackal to the extent that a gazan family holds the Arabic name of the animal, which is “Wawi”. The golden Jackal was sometimes encountered and hunted in the eastern parts of the gaza Strip, which are characterized by the presence of wilderness areas, intensive agriculture, poultry pens and solid waste landfills. Like other a few mammalian faunas, the adult golden Jackals enter the gaza Strip through gaps in or burrows beneath the metal borders separating the gaza Strip from the rest of the Palestinian Territories and Egypt. gaza zoos were found to harbor tens of golden Jackals trapped or hunted by clever wildlife hunters using different means such as wire cages known locally as “maltash” and foothold traps with metal jaws that may cause lesions to the trapped animals. Poisoning and shooting were also common methods used to control the jackals and other carnivores causing harm to agriculture and livestock. The animal was known among the gazans as an omnivore, feeding on wild and domestic animals in addition to plant materials, garbage and carrions. In conclusion, the study recommends the need to raise ecological awareness to preserve the golden jackal and to adopt safe control measures for jackals and other carnivores, including the construction of protective fences for agricultural fields and animal pens.

关键词： Carnivores golden Jackals Trapping foothold Traps Wildlife Hunters Zoos gaza Strip