Mathematics, Statistics & Physics: المرسلات الحديثة
السجلات المعروضة 621 -- 640 من 728
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Multivariate multilevel models for attitudes toward statistics: multi-disciplinary settings in Afghanistan
( Taylor & Francis , 2016 , Article)The present paper focuses on examining students' attitudes and perception of statistics in Afghanistan universities and the factor structure of the statistical anxiety rating scale (STARS). In total, 209 undergraduate ... -
Joint spatial time-series epidemiological analysis of malaria and cutaneous leishmaniasis infection
( Cambridge University Press , 2017 , Article)Malaria and leishmaniasis are among the two most important health problems of many developing countries especially in the Middle East and North Africa. It is common for vector-borne infectious diseases to have similar ... -
Loading Rates of Dust and Metals in Residential Houses of Arid and Dry Climatic Regions
( Taiwan Association for Aerosol Research , 2016 , Article)Dust samples were collected from 38 naturally ventilated houses for 12 weeks. Effects of three variables in two groups each were evaluated: proximity to traffic density (main- and side-roads), cigarettes smoking (smoking ... -
Iterative scheme for an elliptic non-local free boundary problem
( Taylor & Francis , 2016 , Article)In this paper we treat a non-local free boundary problem arising in financial bubbles, where the model is set in the framework of viscosity solutions. We suggest an iterative scheme which consists of a sequence of obstacle ... -
Numerical Computation of the Conformal Map onto Lemniscatic Domains
( Springer , 2016 , Article)We present a numerical method for the computation of the conformal map from unbounded multiply-connected domains onto lemniscatic domains. For ℓ -times connected domains, the method requires solving ℓ boundary integral ... -
Positron annihilation study on polyaniline nanocomposite used for Pb(II) ion removal
( Taylor & Francis , 2016 , Article)Nanocomposites of polyaniline (PANI) with three different concentrations of micrometre-sized sawdust are prepared in aqueous media via chemical casting method at room temperature. Thereafter, the removal efficiency of the ... -
On the origins of antiferromagnetic order in a frustrated spin system at high pressure
( National Academy of Sciences , 2015 , Article)In this letter, I would like to complement the discussion on the antiferromagnetic (AFM) order in the model-frustrated quantum magnet SrCu2(BO3)2 at high pressure. -
Characterization of regulatory sequences in alternative promoters of hypermethylated genes associated with tumor resistance to cisplatin
( Spandidos Publications , 2014 , Article)The development of cisplatin resistance in human cancers is controlled by multiple genes and leads to therapeutic failure. Hypermethylation of specific gene promoters is a key event in clinical resistance to cisplatin. ... -
High prevalence of the risk of overweight and overweight among Qatari children ages 9 through 11
( Emerald , 2009 , Article)Purpose – The purpose of this paper is to estimate the prevalence of the risk of overweight and overweight in Qatari children ages 9 through 11 and to compare the prevalence using CDC and IOTF cut-offs. Design/methodo ... -
Social and Demographic Factors Associated with Morbidities in Young Children in Egypt: A Bayesian Geo-Additive Semi-Parametric Multinomial Model
( Public Library of Science (PLoS) , 2016 , Article)Background Globally, the burden of mortality in children, especially in poor developing countries, is alarming and has precipitated concern and calls for concerted efforts in combating such health problems. Examples of ... -
Single-Walled Carbon-Nanotubes-Based Organic Memory Structures
( MDPI AG , 2016 , Article)The electrical behaviour of organic memory structures, based on single-walled carbon-nanotubes (SWCNTs), metal–insulator–semiconductor (MIS) and thin film transistor (TFT) structures, using poly(methyl methacrylate) (PMMA) ... -
A point symmetry based method for transforming ODEs with three-dimensional symmetry algebras to their canonical forms
( Elsevier Inc. , 2016 , Article)We provide an algorithmic approach to the construction of point transformations for scalar ordinary differential equations that admit three-dimensional symmetry algebras which lead to their respective canonical forms. -
Effect of Zn and Ni substitution on structural, morphological and magnetic properties of tin oxide nanoparticles
( Elsevier , 2016 , Article)Structural, morphological, optical and magnetic properties of Zn and Zn–Ni co-doped tin oxide (SnO2) nanoparticles synthesized by sol-gel method. The influence of doping concentration on phase and particle size of the ... -
C-class functions with new approach on coincidence point results for generalized (ψ,φ)-weakly contractions in ordered b-metric spaces
( SpringerOpen , 2016 , Article)In this paper, by using the C-class functions and a new approach we present some coincidence point results for four mappings satisfying generalized (ψ,φ) -weakly contractive condition in the setting of ordered b-metric ... -
Linear hydrogen gas sensors based on bimetallic nanoclusters
( Elsevier Ltd , 2016 , Article)This work reports on the fabrication of hydrogen gas sensors based on bimetallic palladium-copper nanoclusters. The nanoclusters were generated by sputtering and inert-gas condensation inside an ultra-high vacuum (UHV) ... -
Fixed point results for generalized chatterjea type contractive conditions in partially ordered G-metric spaces
( Hindawi Publishing Corporation , 2014 , Article)In the framework of ordered G -metric spaces, fixed points of maps that satisfy the generalized Chatterjea type contractive conditions are obtained. The results presented in the paper generalize and extend several well ... -
Existence and approximation results for SKC mappings in CAT(0) spaces
( Springer International Publishing , 2014 , Article)Recently, Karap?nar and Tas (Comput. Math. Appl. 61:3370-3380, 2011) extended the class of Suzuki-generalized nonexpansive mappings to the class of SKC mappings. In this paper, we investigate SKC mappings to get a criterion ... -
Parallel LQP alternating direction method for solving variational inequality problems with separable structure
( Springer International Publishing , 2014 , Article)In this paper, we propose a logarithmic-quadratic proximal alternating direction method for structured variational inequalities. The predictor is obtained by solving series of related systems of nonlinear equations, and ... -
Approximate analytic solutions of transient nonlinear heat conduction with temperature-dependent thermal diffusivity
( Hindawi Publishing Corporation , 2014 , Article)A new approach for generating approximate analytic solutions of transient nonlinear heat conduction problems is presented. It is based on an effective combination of Lie symmetry method, homotopy perturbation method, finite ... -
Fixed point theorems for weakly T-Chatterjea and weakly T-Kannan contractions in b-metric spaces
( Springer-Verlag , 2014 , Article)In this work, we obtain some fixed point results for generalized weakly T-Chatterjea-contractive and generalized weakly T-Kannan-contractive mappings in the framework of complete b-metric spaces. Examples are provided in ...