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Electromagnetic Coupling of Negative Parity Nucleon Resonances N(1535) Based on Nonrelativistic Constituent Quark Model

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Communications in Theoretical Physics 2018年第1期69卷 43-49页

作者： sara Parsaei ali Akbar Rajabi Faculty of Physics Shahrood University of Technology P.O. Box ***-316 Shahrood Iran Shams Institute of Higher Education Golestan Province Gonbad Iran

The electromagnetic transition between the nucleon and excited baryons has long been recognized as an important source of information for understanding strong interactions in the domain of quark confinement. We study the electromagnetic properties of the excitation of the negative parity the N~*(1535) resonances in the nonrelativistic constituent quark model at large momentum transfers and have performed a calculation the longitudinal and transverse helicity amplitudes. Since the helicity amplitudes depend strongly on the quark wave function in this paper, we consider the baryon as a simple, non-relativistically three-body quark model and also consider a hypercentral potential scheme for the internal baryon structure, which makes three-body forces among three quarks. Since the hyper central potential depends only on the hyper radius, therefore, the Cornell potential which is a combination of the Coulombic-like term plus a linear confining term is considered as the potential for interaction between quarks. In our work, in solving the Schrodinger equation with the Cornell potential, the Nikiforov–Uvarov method employed, and the analytic eigen-energies and eigen-functions obtained. By using the obtained eigen-functions, the transition amplitudes calculated. We show that our results in the range Q^2> 2GeV^2 lead to an overall better agreement with the experimental data in comparison with the other three non-relativistic quark models.

关键词： electroexcitation nonrelativistic constituent quark model the negative parity the N^* (1535) resonances

Machine Learning Techniques for Software Maintainability Prediction:Accuracy Analysis

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Journal of Computer Science & Technology 2020年第5期35卷 1147-1174页

作者： sara Elmidaoui Laila Cheikhi ali Idri Alain Abran Softtrare Project Management TeamEcole Nationale Superieure d'Informattique et d'Analyse des SystemesMadinate Al IrfaneMohammed V University in Rabat.Agdal RabatBP 713Morocco Department of Software Engineering&Infonnation Technology Ecole de Technologie Superieure(ETS)Montreal HSC IKSCanada

Maintaining software once implemented on the end-user side is laborious and,over its lifetime,is most often considerably more expensive than the initial software *** prediction of software maintainability lias emerged as an important research topic to address industry expectations for reducing costs,in particular,maintenance *** and practitioners have been working on proposing and identifying a variety of techniques ranging from statistical to machine learning(ML)for better prediction of software *** review has been carried out to analyze the empirical evidence on the accuracy of software product maintainability prediction(SPMP)using ML *** paper analyzes and discusses the findings of 77 selected studies published from 2000 to 2018 according to the following criteria:maintainability prediction techniques,validation methods,accuracy criteria,overall accuracy of ML techniques,and the techniques offering the best *** review process followed the well-known syslematic review *** results show that ML techniques are frequently used in predicting *** particular,artificial neural network(ANN),support vector machine/regression(SVM/R).regression&decision trees(DT),and fuzzy neuro fuzzy(FNF)techniques are more accurate in terms of PRED and *** N-fold and leave-one-out cross-validation methods,and the MMRE and PRED accuracy criteria are frequently used in empirical *** general,ML techniques outperformed non-machine learning techniques,e.g.,regression analysis(RA)techniques,while FNF outperformed SVM/*** ANN in most ***,while many techniques were reported superior,no specific one can be identified as the best.

关键词： accuracy criterion accuracy value machine learning technique maintainability prediction

Design and preparation of a new multi-targeted drug delivery system using multifunctional nanoparticles for co-delivery of siRNA and paclitaxel

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Journal of Pharmaceutical Analysis 2021年第2期11卷 163-173页

作者： sara Hosayni Nasab Amin Amani Hossein ali Ebrahimi ali Asghar Hamidi Department of Agronomy and Plant Breeding Faculty of Agriculture and Natural ResourcesUniversity of Mohaghegh ArdabiliArdabilIran Biotechnology Research Center Tabriz University of Medical SciencesTabrizIran Department of Pharmaceutics School of PharmacyArdabil University of Medical SciencesArdabilIran Department of Medicinal Chemistry Faculty of PharmacyTabriz University of Medical SciencesTabrizIran

Drug resistance is a great challenge in cancer therapy using chemotherapeutic agents. Administration of these drugs with siRNA is an efficacious strategy in this battle. Here, the present study tried to incorporate siRNA and paclitaxel(PTX) simultaneously into a novel nanocarrier. The selectivity of carrier to target cancer tissues was optimized through conjugation of folic acid(FA) and glucose(Glu) onto its surface. The structure of nanocarrier was formed from ternary magnetic copolymers based on FeCopolyethyleneimine(FeCo-PEI) nanoparticles and polylactic acid-polyethylene glycol(PLA-PEG) gene delivery system. Biocompatibility of FeCo-PEI-PLA-PEG-FA(NPsA), FeCo-PEI-PLA-PEG-Glu(NPsB) and FeCo-PEI-PLA-PEG-FA/Glu(NPsAB) nanoparticles and also influence of PTX-loaded nanoparticles on in vitro cytotoxicity were examined using MTT assay. Besides, siRNA-FAM internalization was investigated by fluorescence microscopy. The results showed the blank nanoparticles were significantly less cytotoxic at various concentrations. Meanwhile, siRNA-FAM/PTX encapsulated nanoparticles exhibited significant anticancer activity against MCF-7 and BT-474 cell lines. NPsAB/siRNA/PTX nanoparticles showed greater effects on MCF-7 and BT-474 cells viability than NPsA/siRNA/PTX and NPsB/siRNA/***, they induced significantly higher anticancer effects on cancer cells compared with NPsA/siRNA/PTX and NPsB/siRNA/PTX due to their multi-targeted properties using FA and Glu. We concluded that NPsAB nanoparticles have a great potential for co-delivery of both drugs and genes for use in gene therapy and chemotherapy.

关键词： Paclitaxel siRNA Targeted drug delivery Magnetic nanoparticles Polymeric drug delivery

Multifaceted roles of extracellular RNAs in different diseases

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Military Medical Research 2023年第3期10卷 359-368页

作者： Abdullah Muhammad Sohail Muhammad Babar Khawar ali Afzal ali Hassan sara Shahzaman Ahmed ali Molecular Medicine and Cancer Therapeutics Lab Department of ZoologyFaculty of SciencesUniversity of Central PunjabLahorePakistan Applied Molecular Biology and Biomedicine Lab Department of ZoologyUniversity of NarowalNarowalPakistan

Extracellular RNAs(exRNAs) are novel circulating factors that can be used as biomarkers in various diseases. Their unique and diverse kinds, as well as their role as biomarkers, make them significant biomarkers. There has been immense work carried out since the discovery of exRNAs in circulation and other biological fluids to catalog and determine whether exRNAs may be utilized as indicators for health and illness. In this review, we aim to understand the current state of exRNAs in relation to various diseases and their potential as biomarkers. We will also review current issues and challenges faced in using exRNAs, with clinical and lab trials, that can be used as viable markers for different diseases.

关键词： Extracellular RNAs(exRNAs) Extracellular vehicles(EVs) Cancer Biomarkers Exosomes

Chiral electron deficient ruthenium helical coordination polymer as a catalyst for the epoxidation of substituted styrenes

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Chinese Chemical Letters 2015年第1期26卷 137-140页

作者： Bahareh Tamaddoni Jahromi ali Nemati Kharat sara Zamanian School of Chemistry University College of ScienceUniversity of Tehran

An air and moisture stable ruthenium（Ⅲ） formate complex[Ru（HCO2）Cl2]n has been synthesized and examined in the epoxidation of substituted styrenes.X-ray crystallographic data of this complex were determined and showed that the formate ligand coordinates to the ruthenium centers in a μ~2-η~2 fashion（syn,syn）.Its asymmetric unit contains one Ru（Ⅲ） ion together with the half of a formate ligand and one chloride anion,which are bridged between the metal centers,forming a 1-D chain coordination *** electron deficient helical coordination polymer was employed in the epoxidation of parafluorostyrene,affording the epoxide product in 92%*** chirality of this coordination polymer is applicable in asymmetric epoxidation reactions.

关键词： Electron deficient Helical coordination polymer Chiral ruthenium complex Epoxidation catalyst

铯改性的沸石Y上醇类和胺类的氰乙基化反应(英文)

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催化学报 2014年第2期35卷 264-269页

作者： sara Zamanian ali Nemati Kharat School of Chemistry University College of ScienceUniversity of Tehran

Zeolite Y modified by cesium and magnesium ions was prepared by ion-exchange and impregnation methods, and its activity in the cyanoethylation of aliphatic and aromatic alcohols and amines was investigated. During the preparation of some samples, the transformation of zeolite Y into a pollu-cite-type phase occurred. This phase exhibited good activity in the cyanoethylation of aliphatic alcohols. The prepared solids modified by the impregnation method were more active than the ion-exchanged solids. The activities of the catalysts, in contrast to other basic solids, were scarcely affected by the presence of air or moisture. A correlation between catalyst basicity and catalytic activity is discussed. The catalysts were characterized by X-ray diffraction, volumetric nitrogen adsorption surface area measurement, and CO2 temperature-programmed desorption. Scanning electron microscopy revealed that the particles of the modified nanocatalysts were < 40 nm. The reaction of acrylonitrile with linear alcohols in the presence of the catalysts was accelerated by microwave irradiation.

关键词：离子改性氰乙基化铯离子醇类沸石胺类碱性催化剂扫描电子显微镜

Modeling the spread of spatio-temporal phenomena through the incorporation of ANFIS and genetically controlled cellular automata: a case study on forest fire

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International Journal of Digital Earth 2013年第1期6卷 51-75页

作者： Mohammad H.Vahidnia ali A.Alesheikh Saeed Behzadi sara Salehi Geodesy and Geomatics Engineering Department of Geospatial Information SystemK.N.Toosi University of TechnologyTehranIran Faculty of Geodesy and Geomatics Engineering Department of PhotogrammetryK.N.Toosi University of TechnologyTehranIran

Virtual representation and simulation of spatio-temporal phenomena is a promising goal for the production of an advanced digital *** modeling,which is one of the most helpful analyses in the geographic information system(GIS),plays a prominent role in meeting this *** study proposes a new model that considers both aspects of static and dynamic behaviors of spreadable spatio-temporal in cellular automata(CA)***,artificial intelligence tools such as adaptive neuro-fuzzy inference system(ANFIS)and genetic algorithm(GA)were used in accordance with the objectives of knowledge discovery and *** conditions in updating states are considered so traditional CA transition rules can be accompanied with the impact of fuzzy discovered knowledge and the solution of spread *** focused on the estimation of forest fire growth as an important case study for decision makers.A two-dimensional cellular representation of the combustion of heterogeneous fuel types and density on non-flat terrain were successfully linked with dynamic wind and slope *** validation of the simulation on experimental data indicated a relatively realistic head-fire *** investigations showed that the results obtained using the dynamic controlling with GA in the absence of static modeling with ANFIS were unacceptable.

关键词： geographic information system adaptive neuro-fuzzy inference system cellular automata genetic algorithm spatio-temporal spread forest fire digital earth

HybridWatermarking and Encryption Techniques for Securing Medical Images

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Computer Systems Science & Engineering 2023年第7期46卷 403-416页

作者： Amel ali Alhussan Hanaa A.Abdallah sara Alsodairi Abdelhamied A.Ateya Department of Computer Sciences College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh84428Saudi Arabia Department of Electronics and Communications Engineering Zagazig UniversityZagazigSharqia44519Egypt

Securing medical data while transmission on the network is required because it is sensitive and life-dependent *** methods are used for protection,such as Steganography,Digital Signature,Cryptography,and *** paper introduces a novel robust algorithm that combines discrete wavelet transform(DWT),discrete cosine transform(DCT),and singular value decomposition(SVD)digital image-watermarking *** host image is decomposed using a two-dimensional DWT(2D-DWT)to approximate low-frequency sub-bands in the embedding *** the sub-band low-high(LH)is decomposed using 2D-DWT to four new *** resulting sub-band low-high(LH1)is decomposed using 2D-DWT to four new *** frequency bands,high-high(HH_(2))and high-low(HL_(2)),are transformed by DCT,and then the SVD is applied to the DCT *** strongest modified singular values(SVs)vary very little for most attacks,which is an important property of SVD *** two watermark images are encrypted using two layers of encryption,circular and chaotic encryption techniques,to increase *** first encrypted watermark is embedded in the S component of the DCT components of the HL_(2)*** second encrypted watermark is embedded in the S component of the DCT components of the HH2 *** suggested technique has been tested against various attacks and proven to provide excellent stability and imperceptibility results.

关键词： Watermarking discrete wavelet transform discrete cosine transform singular value decomposition circular encryption chaotic encryption

Opinions and attitudes toward targeted temperature management in the emergency department and intensive care unit in a developing country: a survey study

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World Journal of Emergency Medicine 2023年第2期14卷 138-142页

作者： Abdullah Bakhsh Hadeel Alotaibi sara Alothman Abdulrahman Alothman Rahaf Alothman Abdulrahman Alsulami Malak Alamoudi ali Alothman ali Al-Shareef Department of Emergency Medicine the King Abdulaziz UniversityJeddah 21589Saudi Arabia Faculty of Medicine the King Abdulaziz UniversityJeddah 21589Saudi Arabia Department of Anesthesia Intensive Care Unitthe King Abdulaziz UniversityJeddah 21589Saudi Arabia College of Medicine King Saud Bin Abdulaziz University for Health SciencesCollege of MedicineJeddah 21589Saudi Arabia King Abdulaziz Medical City Jeddah 21589Saudi Arabia King Abdullah International Medical Research Center Jeddah 21589Saudi Arabia

INTRODUCTION The past two decades have witnessed one of the most contentious scientific debates in the field of temperature management after cardiac arrest in *** started in 2002,following the publication of two groundbreaking trials showing lower mortality rates and improved neurologic recovery with the use of active cooling.[1,2]International recommendations advocate active cooling in the range of 32–34℃for comatose survivors of out-of-hospital cardiac arrest (OHCA).[3,4]The year2013 marked the tipping point with the release of the TTM 1 trial.

关键词： breaking release showing