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Renal function assessment in atrial fibrillation:Usefulness of chronic kidney disease epidemiology collaboration vs reexpressed 4 variable modification of diet in renal disease

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World Journal of Cardiology 2015年第10期7卷 685-694页

作者： rami riziq-yousef abumuaileq Emad Abu-Assi Andrea López-López Sergio Raposeiras-Roubin Moisés Rodríguez-Manero Luis Martínez-Sande Francisco Javier García-Seara Xesus Alberte Fernandez-López Jose Ramón González-Juanatey Cardiology Department University Clinical Hospital of Santiago de Compostela

AIM: To compare the performance of the re-expressed Modification of Diet in Renal Disease equation vs the new Chronic Kidney Disease Epidemiology Collaboration equation in patients with non-valvular atrial ***: We studied 911 consecutive patients with non-valvular atrial fibrillation on vitamin-K antagonist. The performance of the re-expressed Modification of Diet in Renal Disease equation vs the new Chronic Kidney Disease Epidemiology Collaboration equation in patients with non-valvular atrial fibrillation with respect to either a composite endpoint of major bleeding, thromboembolic events and all-cause mortality or each individual component of the composite endpoint was assessed using continuous and categorical ≥ 60, 59-30, and < 30 m L/min per 1.73 m2 estimated glomerular filtration ***: During 10 ± 3 mo, the composite endpoint occurred in 98(10.8%) patients: 30 patients developed major bleeding, 18 had thromboembolic events, and 60 died. The new equation provided lower prevalence of renal dysfunction < 60 m L/min per 1.73 m2(32.9%),compared with the re-expressed equation(34.1%). Estimated glomerular filtration rate from both equations was independent predictor of composite endpoint(HR = 0.98 and 0.97 for the re-expressed and the new equation, respectively; P < 0.0001) and all-cause mortality(HR = 0.98 for both equations, P < 0.01). Strong association with thromboembolic events was observed only when estimated glomerular filtration rate was < 30 m L/min per 1.73 m2: HR is 5.1 for the re-expressed equation, and HR = 5.0 for the new equation. No significant association with major bleeding was observed for both ***: The new equation reduced the prevalence of renal dysfunction. Both equations performed similarly in predicting major adverse outcomes.

关键词： Atrial fibrillation Anticoagulants Follow-up studies Kidney Prognosis

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Accelerated D-Dimensional Compactified Universe in Gauss-Bonnet-Dilatonic Scalar Gravity from D-Brane/M-Theory

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Chinese Physics Letters 2008年第8期25卷 2785-2788页

作者： EL-NABULSI Ahmad rami Department of Nuclear and Energy Engineering Cheju National University Ara-dong 1 Jeju 690-756 South Korea

We discuss a particular d-dimensional Gauss- Ronnet-dilatonie universe compactified on S^1 motivated from Mtheory. We examine the time-evolution of the dynamical equations where many interesting consequences are revealed and discussed in some details. Under reasonable conditions, the discussed model can provide a mechanism to realize, in higher-dimensions （d 〉 4）, the accelerated expansion of the universe in the presence of dark energy, without the presence of phantom energy and without the contraction of some internal dimension.

关键词： COSMOLOGICAL CONSTANT CHAPLYGIN-GAS DARK ENERGY QUINTESSENCE SUPERNOVAE PLANETS OMEGA

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The Harrat Al-Birk basalts in southwest Saudi Arabia:characteristic alkali mafic magmatism related to Red Sea rifting

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Acta Geochimica 2017年第1期36卷 74-88页

作者： rami A. Bakhsh Department of Mineral Resources and Rocks Faculty of Earth Sciences King Abdulaziz UniversityP.O. Box 80206 Jeddah 21589 Saudi Arabia

Harrat Al-Birk volcanics are products of the Red Sea rift in southwest Saudi Arabia that started in the Tertiary and reached its climax at ~ 5 *** volcanic field is almost monotonous and is dominated by basalts that include mafic-ultramafic mantle xenoliths(gabbro,websterite,and garnet-clinopyroxenite).The present work presents the first detailed petrographic and geochemical notes about the *** comprise vesicular basalt,porphyritic basalt,and flow-textured basalt,in addition to red and black ***,the volcanic rock varieties of the Harrat Al-Birk are low- to medium-Ti,sodic-alkaline olivine basalts with an enriched oceanic island signature but extruded in a within-plate *** is evidence of formation by partial melting with a sort of crystal fractionation dominated by clinopyroxene and Fe-Ti *** latter have abundant titanomagnetite and lesser *** is a remarkable enrichment of light rare earth elements and depletion in Ba,Th and K,Ta,and *** geochemical data in this work suggest Harrat Al-Birk basalts represent products of watersaturated melt that was silica *** melt was brought to the surface through partial melting of asthenospheric upper mantle that produced enriched oceanic island *** partial melting is the result of subducted continental mantle lithosphere with considerable mantle metasomatism of subducted oceanic lithosphere that might contain hydrous phases in its *** fractional crystallization process was controlled by significant separation of clinopyroxene followed by amphiboles and Fe-Ti oxides,particularly ***,the Harrat Al-Birk alkali basalts underwent crystal fractionation that is completely absent in the exotic mantle xenoliths(*** et *** The Pleistocene Jabal Akwa A1 Yamaniah maar/tuff ring-scoria cone complex as an analogy for future phreatomagmatic to magmatic explosive eruption scenarios in the Jizan Region,SW Saudi Arabia 201

关键词： Harrat Al-Birk Alkaline basalt Red Sea rifting Hydrous mantle Reworked oceanic crust

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Extra-Dimensional Cosmology with a Traversable Wormhole

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Chinese Physics Letters 2009年第9期26卷 37-40页

作者： EL-NABULSI Ahmad rami Department of Nuclear and Energy Engineering Cheju National University Ara-dong 1 Jeju 690-756 South Korea

We discuss many interesting and attractive features of a higher-dimensional cosmology with a static traversable wormhole dominated by a variable effective cosmological constant depending on the scale factor aft） as A... 详细信息

关键词： sea surface nonliear interaction numerical method

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Phase Transitions in the Early Universe with Negatively Induced Supergravity Cosmological Constant

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Chinese Physics Letters 2006年第5期23卷 1124-1127页

作者： EL-NABULSI Ahmad rami Plasma Application Laboratory Department of Nuclear and Energy Engineering and Faculty of Mechanical Energy and Production Engineering Cheju National University Ara-dong 1 Jeju 690-756 South Korea

We consider that the observable cosmological constant is the sum of the vacuum （Avac） and the induced term （Aind - 3m^2/4） with m being the ultra-llght masses （≈ Hubble parameter） implemented in the theory from supergravities arguments and non-minimal coupling. In the absence of a scalar buildup of matter fields, we study its effects on spontaneous symmetry breaking with a Higgs potential and show how the presence of the ultra-light masses yields some important consequences for the early universe and new constraints on the Higgs and electroweak gauge bosons masses.

关键词： SPONTANEOUS SYMMETRY-BREAKING MASSLESS PARTICLES CURVED SPACETIME GAUGE-THEORIES CURVATURE MODELS FIELD

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Understanding roof deformation mechanics and parametric sensitivities of coal mine entries using the discrete element method

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International Journal of Mining Science and Technology 2020年第1期30卷 123-129页

作者： rami Abousleiman Gabriel Walton Sankhaneel Sinha Department of Geology and Geological Engineering Colorado School of MinesGoldenCO 80218USA

Although conventional coal mine designs are conservative regarding pillar strength,local failures such as roof-falls and pillar bursts still affect mine safety and *** studies have identified that discontinuous,layered roof materials have some self-supporting *** research is a preliminary step towards understanding these mechanics in coal-measure *** others have considered broad conceptual models and simplified analogs for mine roof behavior,this study presents a unique numerical model that more completely represents in-situ roof *** discrete element method(DEM)is utilized to conduct a parametric analysis considering a range of in-situ stress ratios,material properties,and joint networks to determine the parameters controlling the stability of single-entries modeled in *** results are compared to empirical observations of roof-support effectiveness(ARBS)in the context of the coal mine roof rating(CMRR)*** such as immediate roof displacement,overall stability,and statistical relationships between model parameters and outcomes are presented *** practical applications of this line of research include:(1)roof-support optimization for a range of coal-measure rocks,(2)establishment of a relationship between roof stability and pillar stress,and(3)determination of which parameters are most critical to roof stability and therefore require concentrated evaluation.

关键词： Numerical modeling Discrete element method Coal mine roof rating Analysis of roof bolt systems Sensitivity analysis Strain softening ubiquitous joints Discrete fracture network

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Accelerated Dilatonic-Brans-Dicke cyclic and non-singular universe from string theory

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Research in Astronomy and Astrophysics 2011年第11期11卷 1249-1256页

作者： Ahmad rami El-Nabulsi Department of Nuclear Engineering Cheju National UniversityAra-dong 1Jeju 690-756South Korea Key Laboratory of Numerical Simulation of Sichuan Province College of Mathematics and Information Science Neijiang Normal University

We discuss the late-time dynamics of a particular four-dimensional Brans-Dicke cosmology with a dilaton field motivated by string theories （solitonic p-branes or D-branes） in which the dilaton field and the scale factor of the fiat, homogeneous spacetime are correlated. We examine the late-time-evolution of the equations of motion where various attractive consequences are revealed artd discussed in some detail.

关键词： cosmology: theory-cosmological parameters

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Hybrid Feature Extractions and CNN for Enhanced Periocular Identification During Covid-19

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Computer Systems Science & Engineering 2022年第4期41卷 305-320页

作者： Raniyah Wazirali rami Ahmed College of Computing and Informatics Saudi Electronic UniversityRiyadh11673Saudi Arabia The School of Information Technology Sebha UniversitySebha71Libya

The global pandemic of novel coronavirus that started in 2019 has ser-iously affected daily lives and placed everyone in a panic *** coronavirus led to the adoption of social distancing and people avoiding unneces-sary physical contact with each *** present situation advocates the require-ment of a contactless biometric system that could be used in future authentication systems which makesﬁngerprint-based person identiﬁcation ***-lar biometric is the solution because it does not require physical contact and is able to identify people wearing face ***,the periocular biometric region is a small area,and extraction of the required feature is the point of *** paper has proposed adopted multiple features and emphasis on the periocular *** the proposed approach,combination of local binary pattern(LBP),color histogram and features in frequency domain have been used with deep learning algorithms for classiﬁ***,we extract three types of fea-tures for the classiﬁcation of periocular regions for *** LBP represents the textual features of the iris while the color histogram represents the frequencies of pixel values in the RGB *** order to extract the frequency domain fea-tures,the wavelet transformation is *** learning from these features,a convolutional neural network(CNN)becomes able to discriminate the features and can provide better recognition *** proposed approach achieved the highest accuracy rates with the lowest false person identiﬁcation.

关键词： Person identiﬁcation convolutional neural network local binary pattern periocular region Covid-19

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Gravitational Field as a Pressure Force from Logarithmic Lagrangians and Non-Standard Hamiltonians：The Case of Stellar Halo of Milky Way

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Communications in Theoretical Physics 2018年第3期69卷 233-240页

作者： rami Ahmad El-Nabulsi Athens Institute for Education and Research Mathematics and Physics Divisions 8 Valaoritou Street Kolonaki 10671 Athens Greece

Recently,the notion of non-standard Lagrangians was discussed widely in literature in an attempt to explore the inverse variational problem of nonlinear differential *** forms of non-standard Lagrangians were introduced in literature and have revealed nice mathematical and physical *** interesting form related to the inverse variational problem is the logarithmic Lagrangian,which has a number of motivating features related to the Li′enard-type and Emden nonlinear differential *** types of Lagrangians lead to nonlinear dynamics based on non-standard *** this communication,we show that some new dynamical properties are obtained in stellar dynamics if standard Lagrangians are replaced by Logarithmic Lagrangians and their corresponding non-standard *** interesting consequence concerns the emergence of an extra pressure term,which is related to the gravitational field suggesting that gravitation may act as a pressure in a strong gravitational *** case of the stellar halo of the Milky Way is considered.

关键词： logarithmic Lagrangian non-standard Hamiltonians modified Boltzmann equation stellar dynamics Milky way

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Machine Learning Approaches to Detect DoS and Their Effect on WSNs Lifetime

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Computers, Materials & Continua 2022年第3期70卷 4921-4946页

作者： Raniyah Wazirali rami Ahmad College of Computing and Informatics Saudi Electronic UniversityRiyadh11673Saudi Arabia The School of Information Technology Sebha UniversitySebha71Libya

Energy and security remain the main two challenges in Wireless Sensor Networks(WSNs).Therefore,protecting these WSN networks from Denial of Service(DoS)and Distributed DoS(DDoS)is one of the WSN networks security *** packet deep scan systems that rely on open field inspection in transport layer security packets and the open field encryption trend are making machine learning-based systems the only viable choice for these types of *** paper contributes to the evaluation of the use machine learning algorithms in WSN nodes traffic and their effect on WSN network life *** examined the performance metrics of different machine learning classification categories such asK-Nearest Neighbour(KNN),Logistic Regression(LR),Support Vector Machine(SVM),Gboost,Decision Tree(DT),Na飗e Bayes,Long Short Term Memory(LSTM),and Multi-Layer Perceptron(MLP)on aWSN-dataset in different *** test results proved that the statistical and logical classification categories performed the best on numeric statistical datasets,and the Gboost algorithm showed the best performance compared to different algorithms on average of all performance *** performance metrics used in these validations were accuracy,F1-score,False Positive Ratio(FPR),False Negative Ratio(FNR),and the training execution ***,the test results showed the Gboost algorithm got 99.6%,98.8%,0.4%0.13%in accuracy,F1-score,FPR,and FNR,*** training execution time,it obtained 1.41 s for the average of all training time execution *** addition,this paper demonstrated that for the numeric statistical data type,the best results are in the size of the dataset ranging from3000 to 6000 records and the percentage between categories is not less than 50%for each category with the other ***,this paper investigated the effect of Gboost on the WSN lifetime,which resulted in a 32%reduction compared to other Gboost-free scenarios.

关键词： WSN intrusion detection machine learning DoS attack WSN security WSN lifetime

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