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Objective: The Endocheck, embedded within the Vicorder device, uses cuff-based, pulse volume (PV) displacement to record brachial PV waveforms at baseline, and during reactive hyperaemia. The aim of this study was to assess the utility of the Endocheck method. Methods: The study consisted of two parts....

Objectives: Cerebral artery critical closing pressure (CCP) is an estimated parameter with no single accepted method of calculation. Variation between methods could be significant. This study investigates two models to estimate CCP using arterial blood pressure (BP) and middle cerebral artery flow velocity...

Background: Quantitative imaging of retinal arterioles and venules offers unique insights into cardiovascular and microvascular diseases but is laborious. We developed and tested a method to automatically identify Arterial/Venular (A/V) vessels in digital retinal images in conjunction with a semi-automatic...

Introduction: Recently, a mouse model was developed showing spontaneous plaque rupture leading to stroke (ApoE−/−Fbn1C1039G+/− mouse). However, a longitudinal follow-up of these mice was hampered by the lack of an accurate in vivo method to visualize the cerebral vasculature. Methods: In this feasibility...

Purpose/Background/Objectives: This study aims to investigate how image settings affect carotid Intima-Media-Thickness (IMT) and diameter estimation performed with CarotidStudio (Quipu Srl). Methods: 14 healthy volunteers (24.4 ± 4.4 years; 8 men) were recruited. Longitudinal scans 3cm deep of common-carotid-arteries...

Objective: Morphological changes affecting small arteries are recognized surrogates of end-organ damage due to aging and/or hypertension. However, the corresponding structural modifications of the wall of microvessels are poorly known. Here, using adaptive optics (AO) infrared imaging, we analyzed the...

In this paper, an incremental data migration technique is evaluated in the multi-database system based on MySQL with SPIDER storage engine and the improvement of the turn-around times of other operations is proved in this systems. In this method, a large data migration is divided into small data migrations...

We classify all four-state spin edge models according to their behavior under a specific group of birational symmetry transformations generated from the so-called inversion relations. This analysis uses the measure of complexity of the action of birational symetries of these lattice models, and aims...

Objectives: Objectives of this study were to examine the constructs of the Theory of Planned Behavior and determine how they predict Lebanese medical students’ behavioral intention to advise patients to quit smoking. Study design: This was a cross-sectional study conducted among 191 medical students...

Dose-adjusted rituximab, etoposide, prednisone, vincristine, cyclophosphamide and doxorubicin (DA.R-EPOCH) is used for upfront treatment of high-risk diffuse large B cell lymphoma (DLBCL). In this study, we compared the outcomes in patients with high-risk DLBCL who received frontline rituximab, cycophosphamide,...

Objective: The Coronavirus Disease 2019 (COVID-19) pandemic is a public health emergency of international concern and poses a challenge to people’s psychological resilience. Students are reported to have greater psychological impacts from COVID-19. This study aimed to survey international students to...

In this paper we show that non-smooth functions which are distributional traveling wave solutions to the two component Camassa–Holm equation are distributional traveling wave solutions to the Camassa–Holm equation provided that the set u-1(c), where c is the speed of the wave, is of measure zero. In...

This paper is mainly concerned with a mean-field limit and long time behavior of stochastic microscopic interacting particles systems. Specifically we prove that a class of ODE modeling collective interactions in animals or pedestrians converges in the mean-field limit to the solution of a non-local...

Generative art is produced by procedural techniques. It has obtained a lot of attention since the beginning of computer graphics. Many works of art are inspired by nature, among which phyllotaxis is as well. It is a combination of mathematics and the beauty of nature. Not only can it be seen everywhere...

Objectives: estimate determinants of thoracic aorta remodelling in healthy subjects. Methods: 139 subjects (63 women, mean age 39.9) were included. Aortic diameters were calculated at the level sinuses of Vasalva, junction, ascending, arch and descending aorta. AIx, Pi, central blood pressure (CBP)...

Background and Aim: Left Ventricular (LV) End-systolic elastance (Ees) serves as a major determinant of cardiac systolic contractility. Traditional Methods: to evaluate the ventricular mechanics directly from measurements require intraventricular pressure and volume recordings during an acute preload...

Background: Statins are widely used for atherosclerotic plaques stabilization due to their cholesterol-lowering properties and pleotropic effects. However, the optimal drug regimens including dosage and length of treatment necessary to achieve significant improvement of ultrasound plaque morphology are...

Background: Hypertension clinical treatment largely relies on different drugs. Some of these drugs are thought to exhibit specific protective functions in addition to those resulting from blood pressure reduction per se. Through a validated multiscale mathematical model of the cardiovascular system,...

Objectives: The popliteal artery resemble the carotid artery in structure and function1. The aim of this study was to determine whether the popliteal artery resemble the carotid artery in structure and function in young and older Caucasian men and women. Methods: Hundred and twenty Caucasian men and...

Background: Monitoring Intracranial Pressure (ICP) is key for appropriate clinical treatment of patients with conditions potentially causing raised ICP. The adequacy of using Heart Rate (HR), aortic Blood Pressure (aBP) and carotid Blood Flow (cBF) to estimate ICP magnitude (pulse and mean) and waveform...

Objectives: Microvascular arterial remodelling has been linked with target organ damage and cardiovascular events. Our objective was to link retinal arterial remodelling assessed using a new interferometry technique (adaptative optics, AO) and ascending aortic function and geometry. Methods: 9 patients...

Objective and motivation: Endothelial dysfunction is associated with cardiovascular diseases. Flow mediated dilation (FMD), assesses the endothelial function by measuring the brachial artery vasodilation following deflation of a sphygmomanometer cuff around the forearm. Vasodilation is assumed to be...

The relation between carotid-femoral pulse wave velocity (cfPWV) and LV remodeling/dysfunction is confounded by the effect of blood pressure (BP). We evaluated the relationship between cardio-ankle vascular index (CAVI), a less BP-dependent measure of the stiffness constant (β) of the aorta, iliac, femoral...

Rao-Blackwellized Particle Filter (RBPF) is used in this paper to solve the Simultaneous Localization and Mapping (SLAM) problem. RBPF algorithm uses particle filter where each particle carries an individual map of the environment. With the usage of Robot Operating System (ROS), GMapping package was...

We introduce the q,k-generalized Pochhammer symbol. We construct q,k and Bq,k, the q,k-generalized gamma and beta functions, and show that they satisfy properties that generalize those satisfied by the classical gamma and beta functions. Moreover, we provide integral representations for q,k and Bq,k.

We discuss the bihamiltonian geometry of the Toda lattice (periodic and open). Using some recent results on the separation of variables for bihamiltonian manifold, we show that these systems can be explicitly integrated via the classical Hamilton­Jacobi method in the so-called Darboux­Nijenhuis coordinates.

With the development of economy, the problem of food safety has caused extensive concern. Agricultural production node is on the front of the food safety management chain. The combination of which and modern economic social development is an important character to reflect the food safety situation in...

This study examined whether body weight misclassification continues from adolescence to adulthood and the associated predictors behind that misclassification. Data are from a sample of a longitudinal Australian birth-cohort study. Data analyses were restricted to 2938 participants whose measured and...

Context information is essential for crowd counting network to estimate crowd numbers, especially in the congested scene accurately. However, shallow layers of common crowd counting networks (i.e., congested scene recognition network) do not own large receptive filed so that they can’t efficiently utilize...

In this paper, by the Darboux transformation together with the Wronskian technique, we construct new double Wronskian solutions for the Whitham-Broer-Kaup (WBK) system. Some new determinant identities are developed in the verification of the solutions. Based on analyzing the asymptotic behavior of new...

Nowadays employment world is increasingly shifting towards service-related labour, changing focus from physiological to psychological loads for workers. Thus, a deeper psychological stress understanding arises, not only for jobs within extreme conditions (as astronauts or pilots) but also for regular...

Preeclampsia (PE) affects pregnancy, being one of the main causes of prenatal maternal mortality and morbidity (1). Recent studies show that PE is characterized by a significant reduction on maternal cardiac output and increased peripheral resistance. However, studies on the maternal hemodynamic adaptation...

Objectives: To examine vascular characteristics in patients with type-2-diabetes (T2D) and resistant hypertension (RH) after a median period of 6 months intensified antihypertensive treatment. Methods: Patients were characterized as having RH based on ambulatory blood pressure measurements (ABPMs, Kivex®...

Background: Accuracy of non-invasive PWV as m/sec is impeded by crude surface estimates of aortic length. We compared PWV measured using the Sphygmocor via surface length measurements with PWV measured using MRI with distance traced more precisely along the whole imaged aortic length. Methods: Magnetic...