检索结果-南通市图书馆

A New Quantum Gray-Scale Image Encoding Scheme

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2018年第2期69卷 215-226页

作者： mosayeb naseri mona abdolmaleky fariborz parandin negin fatahi ahmed farouk reza nazari department of physics kermanshah branchislamic azad universityKermanshahIran department of electrical engineering college of engineeringkermanshah branchislamic azad universityKermanshahIran computer sciences department faculty of computers and informationmansoura universityMansoura UniversityEgypt department of it engineering college of engineeringkermanshah branchislamic azad universityKermanshahIran

In this paper, a new quantum images encoding scheme is proposed. The proposed scheme mainly consists of four different encoding algorithms. The idea behind of the scheme is a binary key generated randomly for each pixel of the original image. Afterwards, the employed encoding algorithm is selected corresponding to the qubit pair of the generated randomized binary key. The security analysis of the proposed scheme proved its enhancement through both randomization of the generated binary image key and altering the gray-scale value of the image pixels using the qubits of randomized binary key. The simulation of the proposed scheme assures that the final encoded image could not be recognized visually. Moreover, the histogram diagram of encoded image is flatter than the originM one. The Shannon entropies of the final encoded images are significantly higher than the original one, which indicates that the attacker can not gain any information about the encoded images.

关键词： quantum image quantum encoding gray-scale image

Complications after pediatric percutaneous endoscopic gastrostomy: comparison of the push and pull technique

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Pediatric Surgery 2024年第1期7卷 26-32页

作者： mona Takalo Tarja Iber Reija Autio Topi Luoto Faculty of Medicine and Health Technology Tampere UniversityTampereFinland Department of Pediatric Surgery Tampere University HospitalTampereFinland Faculty of Social Sciences Tampere UniversityTampereFinland

Purpose Various complications are associatedwith percutaneous endoscopic gastrostomy(PEG)procedures in *** push technique is being increasingly used,but its complications are insufficiently *** aimed to assess all complications related to PEG procedures and compare the safety of the pull and push *** Retrospective review of consecutive pediatric patients who underwent PEG between 2002 and *** In total,216 children underwent 217 PEG *** push technique was used in 138(64%)cases,and the pull technique in 79(36%)*** median follow-up time was 6.1(0.1-18.3)*** complication rate was high(57%)and patients experienced complications years after the ***,51%and 67%of patients experienced complications in the push and pull groups,*** rates of minor and major complications were higher in the pull group than in the push group(63%vs 48%,p=0.028;and 11%vs 6%,p=0.140,respectively).Reoperation was also more common in the pull group(17%vs 7%,p=0.020).Conclusions The overall complication rate of PEG procedures is ***,most complications are mild and do not require *** increasing push technique appears to be safer than the traditional pull *** long-term morbidity is related to gastrostomies in children.

关键词： gastro pediatric push

Octreotide ameliorates gastric lesions in chronically mild stressed rats

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2011年第9期17卷 1135-1142页

作者： Noha N Nassar mona F Schaalan Hala F Zaki Dalaal M Abdallah Department of Pharmacology and Toxicology Faculty of PharmacyCairo University Department of Biochemistry Faculty of PharmacyMisr International University

AIM:To evaluate the effect of chronic mild stress(CMS) on the emergence of gastric ulcers and possible modulation by octreotide,a synthetic somatostatin analogue. METHODS:Adult male Wistar rats were subjected to nine different unpredictable random stress procedures for 21 d,a multifactorial interactional animal model for *** was administered daily for 21 d at two dose levels(50 and 90μg/kg)before exposure to stress ***-and microscopical assessments were made,in addition to quantification of plasma corticosterone and gastric mucosal inflammatory,oxidative stress, and apoptotic biomarkers. RESULTS:Exposure to CMS elevated plasma corticosterone(28.3±0.6μg/dL,P=0.002),an event that was accompanied by gastric lesions(6.4±0.16 mm,P=0.01) and confirmed ***,the insult elevated gastric mucosal lipid peroxides(13±0.5 nmol/g tissue,P=0.001),tumor necrosis factor-α(3008.6±78.18 pg/g tissue,P<0.001),prostaglandin E2(117.1 ±4.31 pg/g tissue,P=0.002),and caspase-3 activity (2.4±0.14 OD/mg protein,P=0.002).Conversely,CMS mitigated interleukin-10(627.9±12.82 pg/g tissue,P= 0.001).Furthermore,in animals exposed to CMS,octreotide restored plasma corticosterone(61%and 71%from CMS,P=0.002)at both dose *** beneficial effects were associated with a remarkable suppression of gastric lesions(38%and 9%from CMS,P=0.01)and reversal of derangements in gastric mucosa. CONCLUSION:The current investigation provides evidence that exposure to CMS induces gastric ulceration, which was alleviated by administration of octreotide possibly possessing antioxidant,anti-inflammatory,and anti-apoptotic actions.

关键词： Gastric ulcer Chronic mild stress Octreotide Inflammation Oxidative stress Apoptosis Histopathology

Predicting Energy Consumption Using Stacked LSTM Snapshot Ensemble

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Big Data Mining and Analytics 2024年第2期7卷 247-270页

作者： mona Ahamd Alghamdi Abdullah S.A.L-Malaise AL-Ghamdi Mahmoud Ragab Information Systems Department Faculty of Computing and Information Technology(FCIT)King Abdulaziz University(KAU)Jeddah 21589Kingdom of Saudi Arabia Information Systems Department FCITKAUJeddah 21589Kingdom of Saudi Arabiaand also with School of EngineeringComputing and DesignDar Al-Hekma UniversityJeddah 22246Kingdom of Saudi Arabia Information Technology Department FCITKAUJeddah 21589Kingdom of Saudi Arabiaand also with Mathematics DepartmentFaculty of ScienceAl-Azhar UniversityNaser City 11884Egypt

The ability to make accurate energy predictions while considering all related energy factors allows production plants,regulatory bodies,and governments to meet energy demand and assess the effects of energy-saving *** energy consumption falls within normal parameters,it will be possible to use the developed model to predict energy consumption and develop improvements and mitigating measures for energy *** objective of this model is to accurately predict energy consumption without data limitations and provide results that are easily *** proposed model is an implementation of the stacked Long Short-Term Memory(LSTM)snapshot ensemble combined with the Fast Fourier Transform(FFT)and *** and Berard’s Individual Household Electric-Power Consumption(IHEPC)dataset incorporated with weather data are used to analyse the model’s accuracy with predicting energy *** model is trained,and the results measured using Root Mean Square Error(RMSE),Mean Absolute Error(MAE),Mean Absolute Percentage Error(MAPE),and coefficient of determination(R^(2))metrics are 0.020,0.013,0.017,and 0.999,*** stacked LSTM snapshot ensemble performs better than the compared models based on prediction accuracy and minimized *** results of this study show that prediction accuracy is high,and the model’s stability is high as *** model shows that high levels of accuracy prove accurate predictive ability,and together with high levels of stability,the model has good interpretability,which is not typically accounted for in ***,this study shows that it can be inferred.

关键词： energy consumption prediction Artificial Intelligence(AI) Deep Learning(DL) snapshot ensemble

Bone marrow microRNA-34a is a good indicator for response to treatment in acute myeloid leukemia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Oncology Research 2024年第3期32卷 577-584页

作者： mona SA BDELLATEIF NAGLAA MHASSAN MAHMOUD MKAMEL YOMNA MEL-MELIGUI Department of Cancer Biology Medical Biochemistry and Molecular BiologyNational Cancer InstituteCairo UniversityCairo11976Egypt Department of Cinical Pathology National Cancer InstituteCairo UniversityCairo11976Egypt

Background:microRNA 34a(miR 34a)had been reported to have a diagnostic role in acute myeloid leukemia(AML).However,its value in the bone marrow(BM)of AML patients,in addition to its role in response to therapy is still *** current study was designed to assess the diagnostic,prognostic,and predictive significance of miR 34a in the BM of AML ***:The miR.34a was assed in BM aspirate of 82 AML patients in relation to 12 normal control subjects using *** data were assessed for correlation with the relevant dinical critenia,response to therapy,disease-free survival(DFS),and overall survival(OS)***:miR.34a was significantly downregulated in AML patients[0.005(3.3×10^(-6)-1.32)],compared to the control subjects[0.108(3.2× 10^(-4)-1.64),p=0.021].*** relative quantification(RQ)of miR-34a was 0.106(range;0-32.12).The specifaity,sensitivity,and area under the curve(AUC)for the diagnosis of AML were(58.3%,69.5%,0.707,respectively,p=0.021).patients with upregulated miR-34a showed decreased platelets count<34.5 × 10^(9)/L,and achieved early complete remission(CR,p=0.031,p=0.044,respectively).Similarly,patients who were refractory to therapy showed decreased miR 34a levels in comparison to those who achieved CR[0.002(0-0.01)and 0.12(0-32.12),respectively,p=0.002].Therefore,miR 34a could significantly identify patients with CR with a specificity of 75%and sensitivity of 100%at a cut-off of 0.014(AUC=0.927,p=0.005).There was no considerable association between miR-34a expression and survival rates of the induded AML ***:miR-34a could be a beneficial diagnostic biomarker for AML *** addition,it serves as a good indicator for response to therapy,which could possibly identify patients who are refractory to treatment with 100%sensitivity and 75%specificity.

关键词： AML miR 34a microRNA Leukemia

A comprehensive review of tools for exploratory analysis of tabular industrial datasets

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Visual Informatics 2018年第4期2卷 235-253页

作者： Aindrila Ghosh mona Nashaat James Miller Shaikh Quader Chad Marston Department of Electrical and Computer Engineering University of Alberta116 Street NWEdmontonT6G 1H9Canada Machine Learning Research IBM CanadaTorontoCanada Information Technology and Analytics IBM U.S.BostonUnited States

Exploratory data analysis plays a major role in obtaining insights from *** the last two decades,researchers have proposed several visual data exploration tools that can assist with each step of the analysis ***,in recent years,data analysis requirements have changed *** constantly increasing size and types of data to be analyzed,scalability and analysis duration are now among the primary concerns of ***,in order to minimize the analysis cost,businesses are in need of data analysis tools that can be used with limited analytical *** address these challenges,traditional data exploration tools have evolved within the last few *** this paper,with an in-depth analysis of an industrial tabular dataset,we identify a set of additional exploratory requirements for large ***,we present a comprehensive survey of the recent advancements in the emerging field of exploratory data *** investigate 50 academic and non-academic visual data exploration tools with respect to their utility in the six fundamental steps of the exploratory data analysis *** also examine the extent to which these modern data exploration tools fulfill the additional requirements for analyzing large ***,we identify and present a set of research opportunities in the field of visual exploratory data analysis.

关键词： Exploratory data analysis Industrial tabular data Interactive visualization Systematic literature review Research opportunities

Leveraging Retinal Fundus Images with Deep Learning for Diabetic Retinopathy Grading and Classification

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Systems Science & Engineering 2023年第8期46卷 1901-1916页

作者： Mohammad Yamin Sarah Basahel Saleh Bajaba mona Abusurrah ELaxmi Lydia Department of Management Information Systems Faculty of Economics and Administration King Abdulaziz UniversityP.O.Box 80201Jeddah21589Saudi Arabia Department of Business Administration King Abdulaziz UniversityP.O.Box 80201Jeddah21589Saudi Arabia Department of Management Information Systems College of Business AdministrationTaibah UniversityAl-MadinahSaudi Arabia Department of Computer Science and Engineering GMR Institute of TechnologyAndhra PradeshRajam 532127India

Recently,there has been a considerable rise in the number of diabetic patients suffering from diabetic retinopathy(DR).DR is one of the most chronic diseases and makes the key cause of vision loss in middle-aged people in the developed *** detection of DR becomes necessary for decreasing the disease severity by making use of retinal fundus *** article introduces a Deep Learning Enabled Large Scale Healthcare Decision Making for Diabetic Retinopathy(DLLSHDM-DR)on Retinal Fundus *** proposed DLLSHDM-DR technique intends to assist physicians with the DR decision-making *** the DLLSHDM-DR technique,image preprocessing is initially performed to improve the quality of the fundus ***,the DLLSHDM-DR applies HybridNet for producing a collection of feature *** retinal image classification,the DLLSHDM-DR technique exploits the Emperor Penguin Optimizer(EPO)with a Deep Recurrent Neural Network(DRNN).The application of the EPO algorithm assists in the optimal adjustment of the hyperparameters related to the DRNN model for DR detection showing the novelty of our *** assuring the improved performance of the DLLSHDMDR model,a wide range of experiments was tested on the EyePACS *** comparison outcomes assured the better performance of the DLLSHDM-DR approach over other DL models.

关键词： Decision making healthcare sector deep learning diabetic retinopathy emperor penguin optimizer

Growth promoting activity, anti-biofilm effect, and down regulation of papC and rcsA genes expression by Medicago sativa (alfalfa) extract

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Bioscience 2022年第6期50卷 1925-1932页

作者： Morvarid Moradi Chamachar Mohammad Reza Fazeli mona Salimi Nasrin Samadi Department of Biology Science and Research BranchIslamic Azad UniversityTehranIran Department of Drug and Food Control Faculty of PharmacyTehran University of Medical SciencesTehranIran Pharmaceutical Quality Assurance Research Center The Institute of Pharmaceutical Sciences (TIPS)Tehran University of Medical SciencesTehranIran Department of Physiology and Pharmacology Pasteur Institute of IranTehranIran

Consumption of Medicago sativa (alfalfa) has been linked to infection control in livestock. Therefore, studying the mechanism of this action may lead to the development of enriched food supplements. The purpose of this study was to investigate how M. sativa extract affects the growth of Lacticaseibacillus casei, Lactiplantibacillus plantarum, Staphylococcus aureus , and Escherichia coli . The effects of M. sativa extract on the bacterial cell adherence to Caco-2 cells (Human colon epithelial adenocarcinoma cell lines) and expression of genes involved in the formation of E. coli biofilm were also studied. Generally, in concentrations lower than 100 mg/ml, alfalfa extract had no antimicrobial effect on the probiotic and pathogenic bacteria. However, it not only acted as a growth promoter for two probiotic strains at 2.5% concentration but also increased the antibacterial effect of probiotics supernatants. Furthermore, alfalfa extract reduced the adhesion of pathogenic bacteria to Caco-2 cells. M. sativa extract was identified to inhibit the biofilm formation by E. coli through decreasing the genes expression, papC , and rcsA . As a result, it looks that alfalfa can improve the growth and function of beneficial bacteria, but further studies are needed to elucidate its mechanism of action.

关键词： Growth enhancer Probiotics Adhesion Alfalfa Medicago sativa

Dimethylether production on zeolite catalysts activated by Cl^-,F^- and / or ultrasonication

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

燃料化学学报 2016年第4期44卷 428-436页

作者： Sameh M.K.Aboul-Fotouh Noha A.K.Aboul-Gheit mona A.Naghmash Chemistry Department Faculty of Education Ain Shams University Roxy Cairo 11757 Egypt Faculty of Science Chemistry Department Northern Border University Arar 91431 Kingdom of Saudi Arabia Egyptian Petroleum Research Institute Cairo 11787 Egypt

The chlorinated and fluorinated zeolite catalysts were prepared by the impregnation of zeolites( H-ZSM-5,H-MOR or H-Y) using two halogen precursors( ammonium chloride and ammonium fluoride) in this study. The influence of ultrasonic irradiation was evaluated for optimizing both halogen precursors for production of dimethylether( DME) via methanol dehydration in a fixed bed reactor. The catalysts were characterized by SEM,XRD,BET and NH3-TPD. The reaction conditions were temperatures from 100 to 300 ℃ and a WHSV = 15. 9 h-1. All halogenated catalysts showhigher catalytic activities at all reaction temperatures studied. However, the halogenated zeolite catalysts prepared under ultrasonic irradiation showhigher performance for DME formation. The chlorinated zeolite catalysts show higher activity and selectivity for DME production than the respective fluorinated versions.

关键词： ultrasonication DME zeolite Cl^- F^-