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We consider the general Liénard-type equation u¨=∑k=0nfku˙k for n ≥ 4. This equation naturally admits the Lie symmetry ∂∂t. We completely characterize when this equation admits another Lie symmetry, and give an easily verifiable condition for this on the functions f0,..., fn. Moreover, we give an equivalent...

Objective: To investigate predictors of increase in aortic pulse wave velocity (aPWV) in elderly subjects free from overt cardiovascular disease. Design and Method: The present study included 90 lecture attendees (“university of 3rd age”) who were examined at baseline and after a median follow-up of...

Purpose: The NADPH oxidase system produces superoxide in the vessel wall and its -640A/G polymorphism is associated with coronary artery disease incidence in young individuals. We investigated the role of this polymorphism on peripheral/aortic pressures (PP, AoP), and endothelin-1 (ET-1) levels, in young...

Increased arterial stiffness abnormal ventricular-vascular coupling have increasingly been recognized as playing an important pathophysiologic role in HF, both systolic and with normal ejection fraction. Aim: to assess and compare arterial stiffness, central blood pressure parameters in systolic heart...

Ankle brachial index (ABI) has increasingly been used in general practice to identify patients with low ABI at high cardiovascular risk. However there is no consensus on the clinical significance of high ABI. The aim of our study was to compare large artery stiffness as a marker of cardiovascular risk...

In order to reduce the accumulative errors in our monocular SLAM (simultaneous localization and mapping), the loop closing (detection + correction) method based on PTAM (Parallel Tracking and Mapping) is applied. Here natural environment features are necessary to be extracted efficiently, so the ORB...

Adding an additional degree of non-membership, K. T. Atanassov introduced the concept of the intuitionistic fuzzy (IF) set (IF-set), which has rarely been applied to the game theory yet. The aim of this paper is to develop the concept and methodology of matrix games with IF-set goals in which goals of...

Interval set theory and soft set theory are mathematical tools for dealing with uncertainty information. As a combination of interval set and soft set, recently, we introduced the new notion of interval soft sets. In this paper we further research interval soft sets and its application. We investigate...

In this article, the aim is to analyse how the insemination of images of a cow is entangled with perceptions of gene technology through the ‘doing’ of risk, nature, periphery and gender in Sweden. Two types of data have been used; the 1996 Eurobarometer survey on public opinion and a corpus of articles...

It is well-known that symmetry properties are extremely important for choosing differential equations which can be suitable for description of real physical processes. We present functional bases of second-order differential invariants for various representations of some extensions of the Poincaré group...

We analyze travelling solitary wave solutions in the Barbi-Cocco-Peyrard and in a simplified version of the Cocco-Monasson models of nonlinear DNA dynamics. We identify conditions to be satisfied by parameters for such solutions to exist, and provide first order ODEs whose solutions give the required...

In supervised learning, some real problems require the response attribute to represent ordinal values that should increase with some of the explaining attributes. They are called classification problems with monotonicity constraints. Hyperrectangles can be viewed as storing objects in ℝn which can be...

Digital cameras are being widely used in robotics in 3D scene reconstruction, simultaneous localization and mapping (SLAM), and other applications, which often require real-time video stream from multiple cameras. In a case of a mobile robotic system with limited hardware capabilities performance issues...

Influenza outbreaks in Aged Care Facilities (ACFs) can lead to hospitalizations and deaths. Influenza can spread rapidly through ACFs if precautionary measures are not taken. Along with influenza vaccination and precautionary hygiene measures, Oseltamivir Prophylaxis (OP) may be effective in reducing...

This paper focuses on patterns of innovation and the R&D strategy of automobile companies for technological changes. Tushman and Anderson (1986) pointed out that there are two types of technological changes: incremental technological change and radical technological change. In particular, radical...

Objective: Arterial stiffness is one of the main determinants of the workload of the left ventricle. Amino-terminal pro B-type natriuretic peptide (NT-proBNP) is released by cardiomyocytes in response to left ventricular wall stress. The aim of this study was to investigate whether arterial stiffness...

Last year we presented that PWVao is a significant marker of early atherosclerosis. Now we were interested about how could the comparison of the central and brachial blood pressure predict the early atherosclerosis. The aim of this study was to analyze the relation between the central and brachial blood...

Purpose: Adipocytokines secreted by adipose tissue play an important role in the pathogenesis of atherosclerosis. Arterial stiffness represents an important novel risk factor of cardiovascular disease. We investigated the association between elevated serum alanine aminotransferase (ALT) levels, adipocytokines,...

Purpose: Leptin plays a regulatory role in body weight by controlling appetite and energy consumption. Elevated plasma leptin levels (hyperleptinemia) have been suggested to contribute to pathogenesis of diabetes, hypertension, atherosclerosis and coronary heart disease. Arterial stiffness is an independent...

In this study, we propose a simple robust test for the mean of an exponential distribution by using the simplified version of “Forward Search” (FS) method. The FS method is a powerful general method for identifying outliers and their effects on inferences about the hypothesized model. The simulation...

Accurate prediction for hydrological time series is the precondition of water hazards prevention. A method of radial basis function network based on wavelet de-nosing (WD-RBF) was proposed according to the nonlinear problem and noise in hydrologic time series. Wavelet coefficients of each scale were...

Object extraction has a crucial role in various visual semantic scenarios. In this paper, we propose a system for object extraction which can deal with an object partly occluded by other objects. In order to estimate the hidden part of the occluded object, the system combines different types of contour...

Using the collective risk models of actuarial science, the Creditrisk+ is extended to the case of random number obligors. First, mathematical methods to compute the distribution of total loss are studied. Then, the mathematical results are applied and verified numerically. The insufficiency data in risk...

We study the Hamiltonian structure of the gauge symmetry breaking and enhancment. After giving a general discussion of these phenomena in terms of the constrained phase space, we perform a canonical analysis of the Grassmannian nonlinear sigma model coupled with Chern-Simons term, which contains a free...

In this paper we consider a class of equations that model diffusion. For some of these equations nonclassical potential symmetries are derived by using a modified system approach. These symmetries allow us to increase the number of exact known solutions. These solutions are unobtainable from classical...

People working in the fields of robotics, animation, computer graphics and computer vision, and biomechanics, find it difficult to conduct human motion simulations, such as lifting, walking and running. This is because it is difficult to predict all of the motion strategies in a variety of situations....

Self-rated health (SRH) is an essential global measure of general health and quality of life, and a predictor of the mortality and morbidity of populations. We assessed the SRH and identified associated factors among women in Riyadh, the capital of Saudi Arabia, using a cross-sectional survey conducted...

In face verification applications, precision rate and identifying liveness are two key factors. Traditional methods usually recognize global faces and can not gain good enough results when the faces are captured from different ages, or there are some interference factors, such as facial shade, etc. Besides,...