Results 91 to 100 of about 383,562 (303)

ON INVARIANT SKEW-TENSORS [PDF]

open access: yesProceedings of the National Academy of Sciences, 1956
Throughout this note V will denote a real n-dimensional vector space with a positive-definite inner product, its value for u, v ? V being denoted by (u, v). Let ? p V be the space of contravariant skew-tensors over V of degree p. The inner product in V induces a positive-definite inner product in ? P V, where (u 1 ? … ? u p , v 1 ? … ? v p ) = (1/p!) ·
openaire   +3 more sources

New Onset of Fibromyalgia After Exposure to a Combat Environment: A Longitudinal Cohort Study

open access: yesArthritis Care &Research, EarlyView.
Objective Traumatic life events are hypothesized to be triggers for the onset of fibromyalgia. Posttraumatic stress disorder (PTSD) is a common comorbidity of fibromyalgia. However, limited prospective data are available on the development of fibromyalgia after exposure to high‐magnitude stress.
Jay B. Higgs   +15 more
wiley   +1 more source

Analysis of the inflation structure of Spanish regions:The Ball and Mankiw methodology [PDF]

open access: yesInvestigaciones Regionales - Journal of Regional Research, 2004
In this paper we analyze the incidence of the distribution of price changes on the inflation rate of Spanish regions (1994-2001).Especially,we pay attention to the role of variability and skewness.The methodology applied is based on the menu cost models ...
María Ángeles Caraballo   +1 more
doaj  

Developing and Evaluating a Laboratory‐Based Frailty Index for the Prediction of Long‐Term Health Outcomes in Systemic Lupus Erythematosus

open access: yesArthritis Care &Research, EarlyView.
Objective We aimed to construct and evaluate the first laboratory‐based frailty index (FI‐Lab) for predicting adverse outcomes in systemic lupus erythematosus (SLE) and to compare its predictive ability to that of an existing clinical FI. Methods We used data from a single‐center prospective cohort of adult patients with SLE whose baseline visit ...
Grace Burns   +2 more
wiley   +1 more source

Skew-normal shocks in the linear state space form DSGE model [PDF]

open access: yes
Observed macroeconomic data – notably GDP growth rate, inflation and interest rates – can be, and usually are skewed. Economists attempt to fit models to data by matching first and second moments or co-moments, but skewness is usually neglected. It is so
Bohdan Klos   +2 more
core  

On skew Heyting algebras

open access: yesArs Mathematica Contemporanea, 2016
In the present paper we generalize the notion of a Heyting algebra to the non-commutative setting and hence introduce what we believe to be the proper notion of the implication in skew lattices. We list several examples of skew Heyting algebras, including Heyting algebras, dual skew Boolean algebras, conormal skew chains and algebras of partial maps ...
openaire   +5 more sources

Biopsychosocial Determinants of Hand Function and Its Trajectories Over Five Years in Patients With Hand Osteoarthritis

open access: yesArthritis Care &Research, EarlyView.
Objective This study aimed to investigate hand function trajectories over five years in primary hand osteoarthritis (OA). Additionally, determinants of baseline and longitudinal hand function were assessed. Methods A total of 538 patients with both baseline and five‐year study visits were analyzed.
Annemiek V. E. M. Olde Meule   +4 more
wiley   +1 more source

Exp-Kumaraswamy Distributions: Some Properties and Applications [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2015
In this paper, we propose and study exp-kumaraswamy distribution. Some of its properties  are derived, including the density function, hazard rate function, quantile function, moments,  skewness  and kurtosis.
Z. Javanshiri   +2 more
doaj  

Application of equivalent non-Gaussian excitation method for systems subjected to non-Gaussian random excitation with asymmetric probability distribution

open access: yesNihon Kikai Gakkai ronbunshu, 2015
This paper presents an application of equivalent non-Gaussian excitation method for the response analysis of systems subjected to non-Gaussian random excitation with an asymmetric probability distribution. The non-Gaussian excitation is prescribed by the
Takahiro TSUCHIDA   +2 more
doaj   +1 more source

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