نتایج جستجو برای: multidimensional properties

تعداد نتایج: 912154  

Journal: :Ethnicity & disease 2009
Mario Sims Sharon B Wyatt Mary Lou Gutierrez Herman A Taylor David R Williams

OBJECTIVE Assessing the discrimination-health disparities hypothesis requires psychometrically sound, multidimensional measures of discrimination. Among the available discrimination measures, few are multidimensional and none have adequate psychometric testing in a large, African American sample. We report the development and psychometric testing of the multidimensional Jackson Heart Study Disc...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ولی عصر (عج) - رفسنجان - دانشکده ریاضی 1392

let h be a separable hilbert space and let b be the set of bessel sequences in h. by using several interesting results in operator theory we study some topological properties of frames and riesz bases by constructing a banach space structure on b. the convergence of a sequence of elements in b is de_ned and we determine whether important properties of the sequence is preserved under the con...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده علوم 1388

heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...

Journal: :Journal of Development Economics 2021

Multidimensional poverty measures have become a standard feature in assessments. A large and growing body of work uses endogenous (data driven) weights to compute multidimensional poverty. We demonstrate that broad classes violate key properties indices such as monotonicity subgroup consistency, without which evaluation policy targeting are seriously compromised. Using data from Ecuador Uganda ...

1989
Anton Kummert

Multidimensional lossless networks are of special interest for use as reference structures for multidimensional wave digital filters [1]-[3]. The starting point of the presented synthesis procedure for two-dimensional representatives of the networks mentioned is a scattering matrix description of the desired multiport. This given matrix is assumed to have those properties which have turned out ...

2013
Maria Ekbäck Eva Benzein Magnus Lindberg Kristofer Årestedt

BACKGROUND The Multidimensional Scale of Perceived Social Support (MSPSS) is a short instrument, developed to assess perceived social support. The original English version has been widely used. The original scale has demonstrated satisfactory psychometric properties in different settings, but no validated Swedish version has been available. The aim was therefore to translate, adapt and psychome...

2007
F. Comellas C. Dalfó M. A. Fiol M. Mitjana

The multidimensional Manhattan street networks constitute a family of digraphs with many interesting properties, such as vertex symmetry (in fact they are Cayley digraphs), easy routing, Hamiltonicity, and modular structure. From the known structural properties of these digraphs, we determine their spectra, which always contain the spectra of hypercubes. In particular, in the standard (two-dime...

2016
Andrea Cerri Marc Ethier Patrizio Frosini

Comparison between multidimensional persistent Betti numbers is often based on the multidimensional matching distance. While this metric is rather simple to define and compute by considering a suitable family of filtering functions associated with lines having a positive slope, it has two main drawbacks. First, it forgets the natural link between the homological properties of filtrations associ...

Journal: :Inf. Comput. 2017
Olivier Bournez Daniel S. Graça Amaury Pouly

We consider the General Purpose Analog Computer (GPAC), introduced by Claude Shannon in 1941 as a mathematical model of Differential Analysers, that is to say as a model of continuous-time analog (mechanical, and later one electronic) machines of that time. We extend the model properly to a model of computation not restricted to univariate functions (i.e. functions f : R → R) but also to the mu...

2017
Jianfeng Yan Jared Crean Jason E. Hicken

When discretizing equations with second-order derivatives, like the Navier-Stokes equations, the boundary and interior penalties play a critical role in terms of the conservation, consistency, energy stability, and adjoint consistency of summation-by-parts (SBP) methods. While interior penalties for tensor-product SBP operators have been studied, they have not been investigated in the context o...

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