Search all articles

Objectives: To investigate the associations of walking (steps/day) with sarcopenic obesity (SO) and cardiovascular disease (CVD) risk factors in older adults. Methods: This cross-sectional study included 297 older adults aged ≥65 years (mean age 72, ranged 65–95). Walking was assessed using an accelerometer...

Background: Zero flow pressure (P∞), the steady-state pressure following cardiac arrest or cessation of flow is often assumed to equal mean circulatory filling pressure (MCFP). [1] However, this assumes complete equilibration of circulatory pressures, which may not occur if there is a ‘critical closing...

Background: Arterial stiffening, occurring as part of the natural aging process of the artery, is well- established as a powerful predictor of cardiovascular disease. However, little is known about how localised changes in the extracellular matrix and mechanical properties of arterial tissue contribute...

Objectives: Postmenopausal (PM) women have a blunted β2-adrenergic receptor-mediated responsiveness when compared to young premenopausal women in part due to a reduction in the relative contribution of nitric oxide (NO) to β2-adrenergic mediated vasodilation. Hence, we tested the contribution of NO to...

Production and consumption relationship shows that marketing plays an important role in enterprises. In the competitive market, it is very important to be able to sell rather than produce. Nowadays, marketing is customer- oriented and aims to meet the needs and expectations of customers to increase their...

This paper offers an exploratory conceptual and theoretical examination of knowledge creation within virtual communities of hackers. By distinguishing between different types of virtual communities, we argue that hacker communities involved in free and open source activities possess special structural...

The deep feedback Group Method of Data Handling (GMDH)-type neural network is proposed and applied to the medical image recognition of abdominal organs such as the liver and spleen. In this algorithm, the principal component-regression analysis is used for the learning calculation of the neural network,...

Community radio is a medium of expressing and sharing views, thoughts, ideas, problems and prospects of rural, disadvantaged, vulnerable and hard to reach population with the mainstream population. As the media of root level people of the disadvantaged areas, Community radio has become popular in recent...

We give a review of some recent work on generalization of the Bethe ansatz in the case of 2 + 1-dimensional models of quantum field theory. As such a model, we consider one associated with the tetrahedron equation, i.e. the 2+1-dimensional generalization of the famous Yang­Baxter equation. We construct...

CURRENT COMPUTATIONAL TRENDS IN EQUIPMENT PROGNOSTICS The article overviews current trends in research studies related to reliability prediction and prognostics. The trends are organized into three major types of prognostic models: failure data models, stressor models, and degradation models. Methods...

Background: Masked hypertension (MH) has been drawing attention recently because this condition is often seen in untreated and treated individuals and is associated with target organ damage and a poor cardiovascular prognosis. Arterial stiffness is associated with organ damage in patients with primary...

Background: Carotid intima-media thickness (CIMT) is a surrogate marker of cardiovascular disease (CVD). CIMT values ≥75th percentile of normal subjects are considered high and indicative of increased CVD risk. It is a rare data about normal CIMT values in Asian subjects without conventional CVD risk...

Background: Individuals with a systolic BP of 120 to 139 mmHg or a diastolic BP of 80 to 89 mmHg should be considered as pre-hypertensive. however limited evidence exists on whether the early drug intervention is needed according to identification of other cardiovascular risk factors except diabetes....

In order to better build the ecological environment of Guizhou province, accelerate the marketization and capitalization of Guizhou province’s ecological resources, and evaluate and study the construction level of Guizhou’s ecological civilization. This paper, by using IFAHP, the establishment of intuitionistic...

Polar code is considered as a major breakthrough of past decade in channel coding area. The unprecedented performance of polar codes compelled third generation partnership project (3GPP) to adopt the polar codes for control channels functions in one of the fifth generation (5G) scenario enhanced mobile...

Background: Wave propagation in arteries can be characterized by the wave-intensity approach. This has particularly well been studied in healthy ascending aortas, carotid, brachial and coronary arteries. However, wave propagation in diseased and peripheral arteries remains unknown. We performed wave...

We developed a secure communication method using a discrete wavelet transform. Two users must each have a copy of the same piece of music to be able to communicate with each other. The message receiver can produce audio data similar to the sending user's speech by using our previously proposed method...

Nicodemi and Prisco recently proposed a model for X-chromosome inactivation in mammals, explaining this phenomenon in terms of a spontaneous symmetry-breaking mechanism [Phys. Rev. Lett. 99 (2007) 108104]. Here we provide a mean-field version of their model.

Low, oscillatory flow/shear patterns are associated with atherosclerotic lesion development. Increased expression of KCa3.1 has been found in Vascular Smooth Muscle (VSM), macrophages and T-cells in lesions from humans and mice. Increased expression of KCa3.1, is also required for VSM cell proliferation...

Nonlocal symmetries of the (1+1)-dimensional Sinh-Gordon (ShG) equation are obtained by requiring it, together with its Bäcklund transformation (BT), to be form invariant under the infinitesimal transformation. Naturally, the spectrum parameter in the BT enters the nonlocal symmetries, and thus through...

Thoracic Endovascular Aortic Repair (TEVAR) became the standard treatment for patients with Blunt Thoracic Aortic Injury (BTAI) because it is a minimally invasive intervention, with proven lower morbidity and mortality compared with open surgery, especially in multiple trauma patients. However, there...

Background: Estimating aortic blood pressure (BP) non-invasively requires peripheral waveform calibration using cuff systolic (SBP) and diastolic (DBP). Accuracy of estimated aortic BP has never been determined when peripheral waveforms are precision calibrated using peripheral intra-arterial SBP/DBP....

Background: It has been proved that Berberine(BR) can improve endothelial function recently. However, the underlying mechanisms about the effect of berberine on endothelial function are not completely clear. The number and function of circulating endothelial progenitor cells(EPC) are involved in the...

Purpose/Background/Objectives: Hypertension is associated with higher cardiovascular risk as well as several markers of subclinical target organ damage (TOD). Albumin to creatinine ratio (ACR) in urine has been recognised as an independent risk factor for cardiovascular events. We hypothesised that there...

Background: Autonomic dysfunction, with increased sympathetic activity at rest has been reported in obese individuals. Indices of blood pressure variability (BPV) and baroreceptor sensitivity (BRS) can provide insight into aspects of autonomic function, particularly following an aerobic exercise bout. Purpose:...

Purpose: Central Blood Pressure (CBP) is a better cardiovascular risk indicator than brachial pressure [1]. However, gold standard CBP measurements require an invasive catheter. We propose an approach to estimate CBP non-invasively from Magnetic Resonance Imaging (MRI) data coupled with a non-invasive...

Introduction: Arterial stiffness is a principal pathogenetic mechanism of aortic systolic blood pressure (SBP) augmentation, left ventricular hypertrophy and sudden cardiac death. The aim of the study was to evaluate the association between parameters of pulse wave and 44-hour ambulatory blood pressure...

Objectives: Increased carotid-femoral pulse wave velocity is indicative of vascular stiffening of the central arterial tree. Aortic stiffness is a key risk factor for the development of hypertension and cardiovascular disease. Following acute (24-hour) sleep deprivation, healthy adults exhibit an increase...

Background: Carotid flow peak velocity is increased in carotid artery stenosis. Carotid intima-media thickness (IMT) have been associated with an increased risk of ischemic stroke. We performed this study to evaluate the relationship between carotid flow velocity and carotid IMT in ischemic stroke without...

Objective: PWV measurement devices are technically demanding, expensive and prone to artefacts, thus limiting the measurement of arterial stiffness in primary care. The CARDIS consortium developed a non-contact device based on the detection of skin movements induced by arterial pulses through a laser...

Objective: Valve calcification (VC) is common in patients on hemodialysis and increases the risk of cardiovascular morbidity and mortality. The aim if the study was to evaluate the association between VC and 44-hour ambulatory blood pressure (ABP) variables. Materials and methods: In 68 patients with...

Objectives: Sex differences in cardiovascular disease risk and progression are well established. Estrogen loss following menopause leads to vascular dysfunction, potentially due to elevations in oxidative stress and subsequent decrements in nitric oxide. It is possible a reduction in oxidative stress...

Various uncertainties are inevitable in complex engineered systems and must be carefully treated in design activities. Reliability-Based Multidisciplinary Design Optimization (RBMDO) has been receiving increasing attention in the past decades to facilitate designing fully coupled systems but also achieving...

This paper establishes a GIS-based system of vulnerability assessment to landslide hazard for Lushan earthquake-stricken areas. By taking these areas as the study area and ArcGIS 9.3 Software as the platform; with GIS Grid Technology and adopting Contributing Weight Overlay Model, we extract 6 vulnerability...

Under the background that the demand for air emergency rescue is increasingly urgent, the ground support for helicopters’ taking off and landing safely in disaster area is studied. By defining the connotation and identifying the influencing factors, the evaluation index system is established, including...

This paper aims to assess and evaluate the factors affecting mobile applications used to access and control security cameras at home and office. Survey data from 397 mobile applications users from Orange County and San Bernardino County in Southern California, USA were collected to test the proposed...

In UWB-IR signal detection, the threshold of signal to noise ratio(SNR) limit the performance of FHN model detection method, from this point, wavelet packet is introduced into FHN model, a novel UWB-IR signal detection method based on wavelet packet and FHN model is proposed, in addition, the disadvantages...

It is proved that among the finite groups of order less than 32 only the tetrahedral group and the binary tetrahedral group are not determined by their endomorphism semigroups in the class of all groups.

It is proven that the essential spectrum of any self-adjoint operator associated with the matrix differential expression

A method of quantization of classical soliton cellular automata (QSCA) is put forward that provides a description of their time evolution operator by means of quantum cicuits that involve quantum gates from which the associated Hamiltonian describing a quantum chain model is constructed. The intrinsic...

Background: Cilostazol is a potent antiplatelet agent that selectively inhibits phosphodiesterase III, and also it has beneficial effect to peripheral arterial disease, like intermittent claudication, by direct vasodilative action. But the effect of cilostazol on arterial stiffness is unclear. We investigated...

Background: Korean Panax Red Ginseng (KPRG) is known to enhance endothelium-dependent vasorelaxation by activating eNOS. Activation of Rho-associated kinase (ROCK) is implicated in endothelial dysfunction in part through destabilization of eNOS mRNA. This study, a randomized, double-blind, placebo-controlled,...

We derive solution-formulae for the Krichever–Novikov equation by a systematic multipotentialisation of the equation. The formulae are achieved due to the connections of the Krichever–Novikov equations to certain symmetry-integrable 3rd-order evolution equations which admit autopotentialisations.