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Objective: The aim of this study is to assess the level of knowledge and acceptance for biosimilars and nonmedical switching in Arab rheumatologists. Methods: A cross-sectional survey was conducted during the Arab League Against Rheumatism conference using a structured questionnaire consisting of 17...

The paper presents the pilot test of the Moto Tiles Body & Brain Test combined with automatically generated individualized training protocols. The test is performed with seniors (avg. 80 years old) with mild dementia in senior care centers in Roskilde, Denmark. The seniors performed pre- and post-test...

Infection by the emerging, potentially zoonotic Middle East Respiratory Syndrome Coronavirus (MERS-CoV) presents a severe health hazard to humans and is often fatal. Given the lack of particular medicines against MERS-CoV, drug discovery studies are needed to bridge this knowledge gap. In this study,...

This paper investigates symmetries of autonomous ordinary stochastic differential equations. Change of time includes the stochastic process itself, and is uniquely determined by the transformation of the spatial variable. As a particular feature, the time change by an admitted Lie symmetry group may...

Explicit formulas for the Gauss decomposition of elliptic Cauchy type matrices are derived in a very simple way. The elliptic Cauchy identity is an immediate corollary.

By using gauge transformations, we manage to obtain new solutions of (2 + 1)-dimensional Kadomtsev–Petviashvili (KP), Kaup–Kuperschmidt (KK) and Sawada–Kotera (SK) equations from nonzero seeds. For each of the preceding equations, a Galilean type transformation between these solutions u2 and the previously...

In this paper, a mixed Kuper-CH-HS equation by a Kupershmidt deformation is introduced and its integrable properties are studied. Moreover, that the equation can be viewed as a constraint Hamiltonian flow on the coadjoint orbit of Neveu-Schwarz superalgebra is shown.

A systematic investigation to derive nonlinear lattice equations governed by partial difference equations (PΔΔE) admitting specific Lax representation is presented. Further it is shown that for a specific value of the parameter the derived nonlinear PΔΔE's can be transformed into a linear PΔΔE's...

Purpose: Erectile dysfunction (ED) may be an early manifestation of generalized vascular disease. Cigarette smoking is an important modifiable cardiovascular risk factor and pathophysiological mechanisms may include a stiff vascular tree. The association of smoking with ED and functional changes in smokers...

Introduction: Metabolic syndrome (MetS) is a cluster of cardiovascular risk factors. The specificity of each component of metabolic syndrome improves its management. Objective: Do patients with MetS have arterial modifications? Which MetS components are they most closely linked to? Materials and methods:...

Patients having different risk factors for coronary heart disease (CHD), as well as those with metabolic syndrome, are known to have increased carotid artery (CA) intima-media complex thickness (IMT) index, comparing to healthy subjects. Recently, the significant correlation between IMT, changes in flow-mediated...

Objectives: Vascular dysfunction is common in type 2 diabetes and obesity. The functional role of hyperinsulinaemia on human blood vessels in obese individuals remains unclear. We hypothesised that in young women, change in vessel function in a hyperinsulinaemic milieu would be influenced more by adiposity...

In a recent paper we introduced a new 2 + 1-dimensional non-isospectral extension of the Volterra lattice hierarchy, along with its corresponding hierarchy of underlying linear problems. Here we consider reductions of this lattice hierarchy to hierarchies of discrete equations, which we obtain once again...

This paper investigates the nature of particle collisions for three-soliton solutions of the Korteweg-de Vries (KdV) equation by describing mathematically the interaction of soliton particles and generation of ghost particle radiation. In particular, it is proven that a collision between any two soliton...

From the action principle, the quantum dynamical equation is obtained both relativistically and gauge invariant, which is analogous to the Dirac equation and describes behaviour of an arbitrary number of self-acting charged particles. It is noted that solutions of this equation are indicative of the...

Introduction: Assessing arterial and haemodynamic properties in response to a physiological perturbation might provide additional information on an individual’s “vascular health”. The aim of this study was to assess the feasibility of measuring changes in carotid stiffness and haemodynamics in response...

Ambiguities represent uncertainty but also a fundamental item of discussion for who is interested in the interpretation of languages and it is actually functional for communicative purposes both in human–human communication and in human–machine interaction. This paper faces the need to address ambiguity...

Background and Aim: The hepatitis C virus (HCV) is considered a global health challenge that requires urgent interventions for prevention and control. In this study, we aimed to evaluate the effectiveness of direct-acting antiviral agents (DAAs) for HCV-infected patients in the Kingdom of Saudi Arabia...

Background: The novel Coronavirus Disease 2019 (COVID-19) infection broken out in Wuhan. We aimed to analyse the impact of medical support and population emigration from Wuhan on the cure rate and mortality of COVID-19 infection in China and to provide early warning on the developmental trend of the...

Objectives: Women with Turner Syndrome (TS) have increased incidence of cardiovascular disease, thought to be related to a clustering of risk factors including insulin resistance, hypertension, obesity and dyslipidemia. The aim of this study was to non-invasively determine and compare ventricular and...

Background: whether metabolic syndrome (MetS) has an independent impact on development of cardiovascular (CV) disease is uncertain. Aim: to evaluate indices of preclinical CV disease in subjects with MetS. Methods: we studied 160 subjects: 50 with MetS (ATP III criteria, age 49±12, BMI 36±7, 12 diabetics)...

Background: whether or not the presence of intracranial aneurysms (IAs) is associated with alterations in systemic arteries is not known. Aim of the study was to evaluate morphology and distensibility of common carotid artery (CCA) in patients with IAs and in a control group of comparable age, gender...

Purpose: Men with metabolic syndrome (MetS) have an increased prevalence of erectile dysfunction (ED). Large artery stiffness is a marker of vascular wall changes associated with MetS. Aim of the study was to investigate associations between MetS, ED and changes in large artery properties. Methods:...

This paper is concerned with the fixed-time consensus tracking problem for multi-AUV (autonomous underwater vehicle) systems with uncertain parameters and external disturbances. Firstly, a fixed-time terminal sliding mode is proposed, which can avoid the singularity problem. Then, a continuous distributed...

Although two major Japanese manufacturers, Toyota and Mazda, compete in the automotive market, their corporate performance, respectively, is different because the internal resources and the way they coordinate interrelationships among their network partners is known to be divergent. Both these two companies...

It is known to us all that the excessive bubble in the real estate market can seriously affect the normal development of the national economy, which could cause the hidden dangers of financial crisis. In 2011, A wave of defaults destabilized markets across Wenzhou, which punctured the property price...

We consider the rational potentials of the one-dimensional mechanical systems, which have a family of periodic solutions with the same period (isochronous potentials). We prove that up to a shift and adding a constant all such potentials have the form U(x) = 1 2 2 x2 or U(x) = 1 8 2 x2 + c2 x-2 .