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Uncertainty is an inherent part of image segmentation in real world applications. The use of new methods for handling incomplete information is of fundamental importance. Type-1 fuzzy sets used in conventional image segmentation cannot fully handle the uncertainties. Type-2 fuzzy sets and cloud model...

This article collected 199 cases of domestic natural gas pipeline leakage accidents, and used the mathematical methods and SPSS statistical analysis software to analysis these accident cases. Based on the analysis of accidents statistics and disaster reduction factors, the natural gas pipeline risk rating...

In wireless Ad Hoc network's many applications, learning accurately the position of the node is one of its important conditions. Node walks randomly in wireless Ad Hoc network, thus it causes the position of the nodes are stochastic; Therefore, the node localization technology is one of the difficult...

We apply a list of criteria which leads to a class of fifth-order symmetry-integrable evolution equations. The recursion operators for this class are given explicitly. Multipotentialisations are then applied to the equations in this class in order to extend this class of integrable equations.

We apply the method of Jacobi Last Multiplier to the fifty second-order ordinary differential equations of Painlevé type as given in Ince in order to obtain a Lagrangian and consequently solve the inverse problem of Calculus of Variations for those equations. The easiness and straightforwardness of Jacobi’s...

Spatial modulated coupled nonlinear Schrödinger systems with symmetry reduction to integrable Ermakov and Ermakov-Painlevé subsystems are investigated.

In this paper, the grouping aggaregation problem of multi-robot in simple environment is studied. The grouping algorithm and aggregation algorithm are mainly discussed. Based on K-means clustering algorithm, a grouping control algorithm that can determine the number of groups and complete the grouping...

This paper examines the effect of the exchange rate devaluation on the quantity and value of exports (intensive margin of trade), as well as the ability to export new products and/or venture into new export markets (extensive margin of trade). Using monthly firm-level and sector-level data for the period...

Background: Previous studies regarding the association of atherosclerotic risk and anxiety have yielded conflicting results. Carotid intima–media thickness (cIMT) is an early marker of subclinical atherosclerosis and an independent predictor of cardiovascular risk. We aimed to determine the relationship...

Background: In diabetes, left ventricular dysfunction independent of coronary disease is common and is associated with elevations in NT-proBNP. Our aims were to determine the relative importance of central aortic pressure, cardiovascular autonomic function and arterial stiffness as predictors of elevated...

Background and Objectives: Corona Virus Disease 2019 (COVID-19) pandemic is a global health emergency. Health Care Workers (HCWs) with sound knowledge and practices can help curb the pandemic. This study aimed to assess the knowledge, attitude and practices of HCWs about COVID-19 and compare physicians...

In this paper, we argue that paralysis-only intubation is almost never acceptable practice. We look at the evidence suggesting that this practice remains commonplace worldwide, its frequency has been exacerbated further by anaesthetic drug shortages secondary to the COVID-19 pandemic. We make a strong...

Multiple Sclerosis (MS) is an autoimmune disorder affecting the central nervous system, characterized by demyelination of the neurons with limited remyelination. There has been a rising trend toward associating a history of allergy with MS. Both MS and type 1 allergies are developed by a hyper-reactive...

This study uses Comtrade trade data covering 1990–2017, 14 textile subsectors, and 53 African countries with their main trade partners to evaluate Chinese trade impacts on African textile exports over three subperiods at the sector level. It finds that, although textile imports from China had a significant...

In this paper we prove the non–existence of Darboux first integrals for the Painlevé II equations x.=y−z2−x2,y.=α+12+2xy,ż=1 for all values of α ∊ ℂ \ {αn: n = 2,4,…}. These αn are real and larger than −1/2.

Camarin High School is one of the schools in the Philippines that is making an initiative in improving Science, Technology Engineering and Mathematics (STEM) education through robotics education. In this paper, the authors report the development of a robotics program for students in junior high school....

Background: Patients with type 2 diabetes have a high risk of CVD. Arterial stiffness gradient is a new prognostic predictor of mortality previously assessed only in dialysis population1–2. The aim of the study was to assess arterial stiffness and stiffness gradient in diabetic patients with arterial...

Background: In patient with type 2 diabetes mellitus (T2DM) the atherosclerosis apper in younger age, in both gender and the cardiovascular risk is much higher. The aim of our study was to examine the association between pulse wave velocity (PWV) and glycated haemoglobin (HbA1c) and low density lipoprotein...

Background: Recent studies have demonstrated distinctive arterial wave characteristics in patients with chronic thromboembolic pulmonary hypertension (CTEPH)1. Therefore, we aimed to assess the impact of pulmonary endarterectomy (PEA) on pulmonary arterial wave propagation and reservoir function in CTEPH...

Background: Vascular complications to diabetes mellitus have, traditionally, been divided in to micro- and macroangiopathy. However, a growing body of evidence has put this categorical division into question, as large artery stiffness has been associated with microvascular complications in diabetics,...

This paper proposes a new color image arrangement method using an elastic transform on some kinds of axes. In this paper, we present the principle of our method using HMGD (Histogram Matching based on Gaussian Distribution). And we describe that the automated method applies the HMGD to input color image...

In this paper, we conducted empirical experiments to study the performance of hashing with a large set of data and compared the results of different collision approaches. The experiment results leaned more to closed addressing than to open addressing and deemed linear probing impractical due to its low...

In this work, we study the beta exponentiated Lindley distribution which includes as special cases several models such as the Lindley, exponentiated Lindley and beta Lindley distributions. Some structural properties of the proposed distribution are studied including expressions for the moments. The estimation...

At the present time, mobile devices such as tablet-type PCs and smart phones have widely penetrated into our daily lives. Therefore, an authentication method that prevents shoulder surfing is needed. We are investigating a new user authentication method for mobile devices that uses surface electromyogram...

The classical generation theorem of conservation laws from known ones for a system of differential equations which uses the action of a canonical Lie­Bäcklund generator is extended to include any Lie­Bäcklund generator. Also, it is shown that the Lie algebra of Lie­Bäcklund symmetries of a conserved...

We construct a number of ansatzes that reduce one-dimensional nonlinear heat equations to systems of ordinary differential equations. Integrating these, we obtain new exact solution of nonlinear heat equations with various nonlinearities.

The applicability in practice of a diagnostic tool is strongly related to the physical transparency of the un- derlying models, for the interpretation of the relationships between the involved variables and for direct model inspection and validation. In this work, a methodology is developed for transforming...

Type II hidden symmetries of partial differential equations () are extra symme- tries in addition to the inherited symmetries of the differential equations which arise when the number of independent and dependent variables is reduced by a Lie point symmetry. (Type I hidden symmetries arise in the increase...

This paper intends to classify the Ljubljana Breast Cancer dataset using C4.5 Decision Tree and Nai?ve Bayes classifiers. In this work, classification is carriedout using two methods. In the first method, dataset is analysed using all the attributes in the dataset. In the second method, attributes are...

This paper reports a recent study investigating the role of business size in use behaviour of knowledge management system. A knowledge management system use behaviour model was developed from Ventatash et al.’s 1 unified theory of acceptance & use of technology model, and the developed model was tested...

Central American immigrants to the United States are a growing population with rates of food insecurity that exceed national averages. We analyzed multiple years of data from the Center for System Peace and the Current Population Survey, Food Security Survey Module, from 1998 to 2015. We used ordered...

Road traffic crashes (RTC) are of serious global health concern. To identify whether the number of ambulance calls, injuries, and deaths has declined after the implementation of the new traffic law (NTL) 2015 in Bahrain, de-identified administrative RTC data obtained from the tertiary care center, and...

In this paper, we define and study a new lifetime model called the Kumaraswamy Marshall-Olkin log-logistic distribution. The new model has the advantage of being capable of modeling various shapes of aging and failure criteria. The new model contains some well-known distributions as special cases such...

Tuberculous Meningitis (TBM) is the most common form of central nervous system Tuberculosis (TB), accounting for 5–6% of extrapulmonary TB cases. Nowadays, TBM continues to be a major topic in public health because of its high prevalence worldwide. This retrospective study aimed to describe the clinical,...

In the association rule mining field many different quality measures have been proposed over time with the aim of quantifying the interestingness of each discovered rule. In evolutionary computation, many of these metrics have been used as functions to be optimized, but the selection of a set of suitable...

Background: Rupture of carotid plaques is an important cause of cerebrovascular events. Several factors, including wall shear stress (WSS), plaque morphology and peak cap stress, have been associated with plaque vulnerability. The aim of this study was to investigate the relationship between these factors...

Systemic inflammatory conditions are associated with an increased risk of cardiovascular disease (CVD). How exactly inflammation leads to this is not fully understood, but it has been suggested that arterial stiffening, could provide potential mechanisms to explain it. Chronic, systemic inflammatory...

We introduce a new flexible class of continuous distributions via the Hjorth's IDB model. We provide some mathematical properties of the new family. Characterizations based on two truncated moments, conditional expectation as well as in terms of the hazard function are presented. The maximum likelihood...

Multiple myeloma, the second most common hematological malignancy worldwide, has demonstrated dramatic improvements in outcome in the last decade. In newly diagnosed patients, induction chemotherapy followed by autologous stem cell transplantation (ASCT) is the standard of care. After ASCT, the majority...

Over the last recent years, applications related to the internet of things have become the most important techniques in the world that facilitate interactions among humans and things to enhance the quality of life. So, the number of devices used in these applications will increase, leading to the creation...

Nowadays, obesity in humans is a huge challenge requiring effective, readily available, and low-risk alternative treatments. Intake of edible Non-Digestible Polysaccharides (NDPs) is regarded as a promising strategy to combat obesity. Herein, an overview of the behavior of NDPs in the Gastrointestinal...

In December 2019, an outbreak of pneumonia caused by a novel Coronavirus (COVID-19) spread rapidly worldwide. Although the clinical manifestations of COVID-19 are dominated by respiratory symptoms, the cardiovascular system is extensively affected at multiple levels. Due to the unprecedented consequences...

This paper publicizes the character segmentation and recognition of the Myanmar warning text signboard images taken by a mobile phone camera in natural scene. In this system, two templates are created. The first template that contains both connected pixel words and characters are used for character segmentation...