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8183 articles

A New Chaos-based Image Cipher Using a Hash Function

Chong Fu, Ou Bian, Hui-yan Jiang, Li-hui Ge, Hong-feng Ma
Pages: 37 - 44
This paper presents a new chaos-based image cipher using a plaintext-related permutation. The cat map and Lorenz system are employed to shuffle the positions of image pixels and generate the diffusion keystream, respectively. The control parameters of the cat map, i.e. the permutation key, are determined...

Advanced control software framework for process control applications

Shazzat Hossain, M.A. Hussain, Rosli Bin Omar
Pages: 37 - 49
Industries are now moving towards PC-based control from PLC (Programmable Logic Control) based control as the PC (personal computer) is easily available and capable of implementing various control strategies to improve productivity. Advances in both hardware and software technology are expediting this...

Optimization of Ventilation and Alarm Setting During the Process of Ammonia Leak in Refrigeration Machinery Room Based on Numerical Simulation

Dongliang Liu, Liang Wang, Tong Wang, Yan Liu, Ya Chen
Pages: 37 - 44
In order to optimize the ventilation effect of ammonia leakage in the refrigeration machinery room, a food processing enterprise is selected as the subject investigated. The velocity and concentration field distribution during the process of ammonia leakage are discussed through simulation of refrigeration...

SO(2) and Hamilton-Dirac mechanics

Cestmir Burdik, Eugen Paal, Juri Virkepu
Pages: 37 - 43
Canonical formalism for plane rotations is developed. This group can be seen as a toy model of the Hamilton-Dirac mechanics with constraints. The Lagrangian and Hamiltonian are explicitly constructed and their physical interpretation are given. The Euler-Lagrange and Hamiltonian canonical equations coincide...

On Pauli graded contractions of sl(3, C)

Miloslav Havlicek, Jiri Patera, Edita Pelantova, Jiri Tolar
Pages: 37 - 42
We consider a special fine grading of sl(3, C), where the grading subspaces are geerated by 3 × 3 generalized Pauli matrices. This fine grading decomposes sl(3, C) into eight one­dimensional subspaces. Our aim is to find all contractions of sl(3, C) which preserve this grading. We have found that the...

Explicit Rate Control for MANET

Nazia Zaman, Morshed Chowdhury
Pages: 37 - 45
Streaming applications over Mobile Ad-hoc Networks (MANET) require a smooth transmission rate. The Internet is unable to provide this service during traffic congestion in the network. Designing congestion control for these applications is challenging, because the standard TCP congestion control mechanism...

Interval-Valued Intuitionistic Fuzzy Derivative and Differential Operations

Hua Zhao, Zeshui Xu, Zeqing Yao
Pages: 36 - 56
The interval-valued intuitionistic fuzzy set (IVIFS) generalizes Atanassov’s intuitionistic fuzzy set (A-IFS) with the membership and non-membership degrees being intervals instead of real numbers, so it can contain more information. In this paper, we study the derivatives and differentials under interval-valued...

Research Priorities of Clinical Nurses and Midwives in the Eastern Mediterranean Region: a Mixed Methods Study

Carolyn J. Sun, Caroline J. Fu, Roa Altaweli, Salem Al Touby, Cheherezade Ghazi, Maaly Guimei
Pages: 36 - 43
Effective use of resources in healthcare research is essential in meeting the United Nation’s Sustainable Development Goal (SDG) 3 to achieve universal health coverage, increase retention of healthcare workers, and strengthen the capacity of all countries to reduce risk and manage global health risks;...

Study on Meteorological Service Policy for Agricultural Insurance in Hebei Province under the Background of Climate Change

Kaicheng Xing, Shujun Guo
Pages: 36 - 42
Hebei Province is a region sensitive to global climate change. Under the background of climate change and frequent extreme climate events, existing agricultural production structure is facing enormous risk of climate disasters. In order to reduce the risk level of agricultural meteorological disasters,...
Review Article

Challenges in Conducting Studies in Chronic Graft-versus-Host Disease

Iskra Pusic, Steven Z. Pavletic
Pages: 36 - 44
The lack of standardized criteria for measuring therapeutic response has been a major obstacle to the development of therapeutic trials in chronic graft-versus-host disease (cGvHD). Nevertheless, recent advances have been made in understanding of the biology and pathophysiology of cGvHD, as well as establishing...
Research Article

Prevalence of Nonadherence to Antihypertensive Medications among Adults Attending Primary Healthcare Clinics in Al-Hasa Region: A Cross-Sectional Study

Abdulrahim M. Alkhamis, Abdulkhaliq J. Alsalman, Mohammed Al Khamis, Abdullah Alkhamis, Nawaf M. Alotaibi
Pages: 36 - 43
To assess the prevalence of nonadherence to antihypertensive medications among adults attending Primary Healthcare Clinics (PHCs) in Al-Hasa Region. This cross-sectional study included participants from a variety of clinics in the region and each of them had been interviewed to complete the questionnaire....
Research Article

A comparative study of vasa vasorum density among coronary arteries

Keerthana Panchagnula, Rohini Punja, Dhiren Punja, Chinmay Suryavanshi
Pages: 36 - 42
Background: Coronary arteries exhibit significantly higher adventitial Vasa vasorum (VV) densities which may partly explain their higher atherosclerosis susceptibility. A variability in the atherosclerosis predispositions exists between individual coronary artery branches but few studies exist that compare...
Research Article

Endothelin 1 and endothelial dysfunction in children with idiopathic nephrotic syndrome

Venkatesh Arumugam, Abhijeet Saha, Manpreet Kaur, Kanika Kapoor, Nimisha Arora, Trayambak Basak, Shantanu Sengupta, Ajay Bhatt, Nitin Bharadwaj, Vineeta V. Batra, Ashish Datt Upadhyay
Pages: 36 - 40
Background: Endothelial dysfunction is the initial step for atherogenesis. Children with idiopathic nephrotic syndrome are at risk of endothelial dysfunction due to altered cholesterol metabolism which can lead to early atherosclerosis. Methods: In this analytical study with longitudinal follow up 25...
Research Article

ABO blood group differences relationship with coronary atherosclerotic markers

Hussein Nafakhi, Hasan A. Al-Nafakh, Abdulameer A. Al-Mosawi
Pages: 36 - 40
Background: The mechanisms linking ABO blood group to coronary atherosclerosis is inconsistent and not fully understood. Objectives: To investigate the relationship between ABO blood groups with coronary atherosclerotic markers (coronary artery calcification (CAC), coronary plaque presence and coronary...
Research Article

Vascular compliance during insulin infusion and oral glucose challenge

Houry Puzantian, Ari Mosenkis, Raymond R. Townsend
Pages: 36 - 41
Background: Vascular stiffness predicts cardiovascular disease (CVD). Pulse wave velocity (PWV), reflecting vascular stiffness, though determined largely by mean arterial pressure; is also sensitive to insulin and glucose. Capacitance in small (C2) and large vessels (C1), reflecting vascular responsiveness...

Accuracy of Five Multiple Imputation Methods in Estimating Prevalence of Type 2 Diabetes based on STEPS Surveys

Hamid Heidarian Miri, Jafar Hassanzadeh, Saeedeh Hajebi Khaniki, Rahim Akrami, Ehsan Baradaran Sirjani
Pages: 36 - 41
Background: This study was aimed to evaluate five Multiple Imputation (MI) methods in the context of STEP-wise Approach to Surveillance (STEPS) surveys. Methods: We selected a complete subsample of STEPS survey data set and devised an experimental design consisted of 45 states (3 × 3 × 5), which differed...

Light Weight Proactive Padding Based Crypto Security System in Distributed Cloud Environment

N. Indira, S. Rukmanidevi, A.V. Kalpana
Pages: 36 - 43
The organization maintains various information in cloud which is a loosely coupled environment. However, the nature of cloud encourages the threats in different level. Among them the data security has been a keen issue being identified and challenges the service provider. To improve the data security...

Prediction for Progressively Type-II Censored Competing Risks Data from the Half-Logistic Distribution

Essam K. AL-Hussaini, Alaa H. Abdel-Hamid, Atef F. Hashem
Pages: 36 - 48
Point and interval predictions of the s-th order statistic in a future sample are discussed. The informative sample is assumed to be drawn from a general class of distributions which includes, among others, Weibull, compound Weibull, Pareto, Gompertz and half-logistic distributions. The informative and...

Multi-folded N-Structures with Finite Degree and its Application in BCH- Algebras

Jeong-Gon Lee, Kul Hur, Young Bae Jun
Pages: 36 - 42
The generalization of N-structure is introduced first and then applied to BCH-algebra for research. The concepts of k-folded N-subalgebra, k-folded N-closed ideal and (closed) k-folded N-filter are introduced, and then their relations and several properties are investigated. Conditions for the k-folded...

Research on Information Channel of Climate Change Risk Perception of Shaanxi People

Si Wen Xue, Qi Zhou
Pages: 36 - 44
We take Shaanxi Province as the research area, aiming at exploring the information channel or path of climate change risk perception of Shaanxi people. It is desirable for us to carry out information channel or path classification of climate change risk perception based on survey data involving 5493...
Research Article

Call for Awareness: ST-Segment Elevation Myocardial Infarction Presentation is Delayed more than What We Expect

Owayed Al Shammeri, Hala El-Saka, Bushra E. Al-Hutahly, Alaa E. Abd Elmoniem
Pages: 36 - 39
Background: ST-Segment Elevation Myocardial Infarction (STEMI) therapy in Saudi Arabia may have particular limitations because of geographic limitations, human resource distribution, and lack of an effective first response system. The aim of this study is to investigate the effective age of STEMI in...

Realizations of the Witt and Virasoro Algebras and Integrable Equations

Qing Huang, Renat Zhdanov
Pages: 36 - 56
In this paper we study realizations of infinite-dimensional Witt and Virasoro algebras. We obtain a complete description of realizations of the Witt algebra by Lie vector fields of first-order differential operators over the space ℝ3. We prove that none of them admits non-trivial central extension, which...
Research Article

Environmental Effects of the African Continental Free Trade Agreement: A Computable General Equilibrium Model Approach

Marta Bengoa, Somya Mathur, Badri Narayanan, Hanna C. Norberg
Pages: 36 - 48
Growth and development in middle- and low-income countries often come at an environmental cost, but is that trade-off always necessary? This study uses a computable general equilibrium model to estimate the macroeconomic and environmental impact of the world’s most significant plurilateral trade agreement,...
Conference Abstract

P8.11 EFFECT OF CARDIAC RESYNCHRONISATION THERAPY ON THE AUTONOMIC NERVOUS SYSTEM FUNCTION

Anna Przybyla*, Danuta Czarnecka
Pages: 36 - 36
Development of cardiac resynchronisation therapy (CRT) in recent years became a breakthrough in treatment of severe heart failure. The aim of this study was evaluation of CRT effect on the autonomous nervous system function. Methods: The study covered a group of 55 patients (45 men, 10 women; mean age...
Conference Abstract

P8.10 EFFECTS OF BARIATRIC SURGERY ON ENDOTHELIAL FUNCTION IN EXTREMELY OBESE PATIENTS

Anna Dzieża-Grudnik*, Anna Gαuszewska, Krzysztof Rewiuk, Aleksander Kwater, Bartosz Zarzycki, Maαgorzata Fedyk-Łukasik, Barbara Gryglewska, Tomasz Grodzicki
Pages: 36 - 36
Introduction: Bariatric surgery in extremely obese patients has influence on metabolic variables and body weight however data about influence on flow-mediated dilatation (FMD) of brachial artery are inconsistent. The aim of the study was to assess the effect of bariatric surgery on endothelial function...
Conference Abstract

P8.9 EFFECT OF CARDIAC RESYNCHRONISATION THERAPY ON THE ARTERIAL STIFFNESS

Anna Przybyla*, Danuta Czarnecka
Pages: 36 - 36
Development of cardiac resynchronisation therapy (CRT) in recent years became a breakthrough in treatment of severe heart failure, as it improves exercise capacity, reduces a rate of hospitalisations due to heart failure exacerbation, and the mortality rate, as well as improves quality of patients’ life....
Conference Abstract

P8.8 CENTRAL ARTERIAL STIFFNESS IN COPD

Ali Albarrati*, Nichola Gale, Maggie Munnery, Sujoy Saikia, Dennis Shale, John Cockcroft
Pages: 36 - 36
Introduction: Increased arterial stiffness is a marker of cardiovascular disease and suggested to beassociated with impaired lung function in chronic obstructive pulmonary disease (COPD). However, whether patients with mild COPD have increased arterial stiffness and what factors are linked to is still...

EM Algorithm and Positive Quadrant Dependence in the context of Multi-State Stress-Strength Model

Sanjeev Sabnis, Mayank Jain, Kartik Verma
Pages: 36 - 46
This research article is related to a multi-state stress-strength model proposed by Eryilmaz and İşçioğlu (2011). It deals with (i) demonstration of the use of EM algorithm for the estimation of parameters of distributions of random variables representing strength and two stress levels. The numerical...

Second Order Dynamic Inclusions

Martin Bohner, Christopher C Tisdell
Pages: 36 - 45
The theory of dynamic inclusions on a time scale is introduced, hence accommodating the special cases of differential inclusions and difference inclusions. Fixed point theory for set-valued upper semicontinuous maps, Green's functions, and upper and lower solutions are used to establish existence results...

Singularity Analysis and a Function Unifying

C. Géronimi, P.G.L. Leach, M.R. Feix
Pages: 36 - 48
The classical (ARS) algorithm used in the Painlevé test picks up only those functions analytic in the complex plane. We complement it with an iterative algorithm giving the leading order and the next terms in all cases. This algorithm works both for an ascending series (about a singularity at finite...

On the Self-Similar Solutions of Generalized Hydrodynamics Equations and Nonlinear Wave Patterns

V.A. Danylenko, V.A. Vladimirov
Pages: 36 - 43
Solutions of the system of dynamical equations of state and equations of the balance of mass and momentum are studied. The system possesses families of periodic, quasiperiodic and soliton-like invariant solutions. Self-similar solutions of this generalized hydrodynamic system are studied. Various complicated...

Symmetries and Differential Forms

A.H. Davison, A.H. Kara
Pages: 36 - 43
The method for writing a differential equation or system of differential equations in terms of differential forms and finding their symmetries was devised by Harrison and Estabrook (1971). A modification to the method is demonstrated on a wave equation with variable speed, and the modified method is...

2D reductions of the equation uyy = utx + uyuxxuxuxy and their nonlocal symmetries

P. Holba, I.S. Krasil'shchik, O.I. Morozov, P. Vojčák
Pages: 36 - 47
We consider the 3D equation uyy = utx + uyuxx − uxuxy and its 2D symmetry reductions: (1) uyy = (uy + y) uxx − uxuxy − 2 (which is equivalent to the Gibbons-Tsarev equation) and (2) uyy = (uy + 2x)uxx + (y − ux)uxy − ux. Using the corresponding reductions of the known Lax pair for the 3D equation, we...
Research Article

Trade facilitation and social welfare in Africa☆

Daniel Sakyi, Isaac Bonuedi, Eric Evans Osei Opoku
Pages: 35 - 53
Improving social welfare in the developing world remains a top priority on the global development agenda, as policymakers and international development partners worldwide strive to meet the Sustainable Development Goals by 2030. Using data on 40 African countries over the period 2010–2015, this paper...

Prevalence and risk factors of human papillomavirus infection types 16/18/45 in a cohort of French females aged 15–23 years

Ariane Baudu, Jean-Luc Prétet, Didier Riethmuller, Morgane Chotard, Christiane Mougin, Mariette Mercier
Pages: 35 - 43
Investigation of the prevalence and risk factors of human papillomavirus (HPV) infection is the basis for developing prophylactic strategies against cervical cancer, especially for young women. This study aimed to assess the prevalence and risk factors of HPV infection among a cohort of sexually active...
Guidelines

Validation of non-invasive central blood pressure devices: Artery society task force (abridged) consensus statement on protocol standardization

James E. Sharman, Alberto P. Avolio, Johannes Baulmann, Athanase Benetos, Jacques Blacher, C. Leigh Blizzard, Pierre Boutouyrie, Chen-Huan Chen, Phil Chowienczyk, John R. Cockcroft, J. Kennedy Cruickshank, Isabel Ferreira, Lorenzo Ghiadoni, Alun Hughes, Piotr Jankowski, Stephane Laurent, Barry J. McDonnell, Carmel McEniery, Sandrine C. Millasseau, Theodoros G. Papaioannou, Gianfranco Parati, Jeong Bae Park, Athanase D. Protogerou, Mary J. Roman, Giuseppe Schillaci, Patrick Segers, George S. Stergiou, Hirofumi Tomiyama, Raymond R. Townsend, Luc M. Van Bortel, Jiguang Wang, Siegfried Wassertheurer, Thomas Weber, Ian B. Wilkinson, Charalambos Vlachopoulos
Pages: 35 - 43
Brachial cuff blood pressure (BP) is clinically important, but may be an inaccurate substitute for central BP. Many non-invasive devices have been developed that purport to estimate central BP from peripheral artery sites, yet with no standardized guidelines; the accuracy testing of these new devices...
Research Article

Central vs. peripheral blood pressure components as determinants of retinal microvessel diameters

Yu-Mei Gu, Yan-Ping Liu, Lutgarde Thijs, Tatiana Kuznetsova, Fang-Fei Wei, Harry A.J. Struijker-Boudier, Peter Verhamme, Jan A. Staessen
Pages: 35 - 43
Background: We assessed association of retinal arteriolar and venular diameters with central and peripheral blood pressure (BP). Methods: We post-processed retinal photographs from 514 participants randomly recruited from a Flemish population (mean age, 50.6 years; 50.8% women), using IVAN software...

Providing a load balancing method based on dragonfly optimization algorithm for resource allocation in cloud computing

Zahra Amini, Mehrdad Maeen, Mohammad Reza Jahangir
Pages: 35 - 42
Nowadays cloud computing is being highly considered by many of researchers, organizations, governments and so on. According to processing happening inside of cloud computing, some of the most important problems and challenges in cloud computing are load balancing, managing resource allocations, scheduling...
Research Article

Vascular health and cognitive function in older adults with cardiovascular disease

Daniel E. Forman, Ronald A. Cohen, Karin F. Hoth, Andreana P. Haley, Athena Poppas, David J. Moser, John Gunstad, Robert H. Paul, Angela L. Jefferson, David F. Tate, Makoto Ono, Nicole Wake, Marie Gerhard-Herman
Pages: 35 - 43
Background: We hypothesized that changes in vascular flow dynamics resulting from age and cardiovascular disease (CVD) would correlate to neurocognitive capacities, even in adults screened to exclude dementia and neurological disease. We studied endothelial-dependent as well as endothelial-independent...

Training Autoencoder using Three Different Reversed Color Models for Anomaly Detection

Obada Al aama, Hakaru Tamukoh
Pages: 35 - 40
Autoencoders (AEs) have been applied in several applications such as anomaly detectors and object recognition systems. However, although the recent neural networks have relatively high accuracy but sometimes false detection may occur. This paper introduces AE as an anomaly detector. The proposed AE is...

Bäcklund-Transformation-Related Recursion Operators: Application to the Self-Dual Yang–Mills Equation

C. J. Papachristou, B. Kent Harrison
Pages: 35 - 49
By using the self-dual Yang–Mills (SDYM) equation as an example, we study a method for relating symmetries and recursion operators of two partial differential equations connected to each other by a non-auto-Bäcklund transformation. We prove the Lie-algebra isomorphism between the symmetries of the SDYM...

Geometrization of the Leading Term in Acoustic Gaussian Beams

Matias F. Dahl
Pages: 35 - 45
We study Gaussian beams for the wave equation on a Riemannian manifold. For the transport equation we geometrize the leading term at the center of the Gaussian beam. More precisely, if u(x,t)=eiPθ(x,t)(u0(x,t)+u1(x,t)iP+u2(x,t)(iP)2+⋯) is a Gaussian beam propagating along a geodesic c, then we show...
Conference Abstract

P8.7 VASCULAR ENDOTHELIAL SENESCENCE AND METABOLIC SYNDROME

Dimitrios Terentes-Printzios*, Charalambos Vachopoulos, Nikolaos Ioakeimidis, Athanasios Aggelis, Panagiotis Xaplanteris, Panagiota Pietri, Dimitrios Tousoulis
Pages: 35 - 36
Objectives: Vascular aging and metabolic syndrome (MS) are both independent predictors of cardiovascular events. We examined whether MS accelerates the progression of vascular aging. Methods: 142 subjects (mean age 51.9±10.8 years, 94 men) with no established cardiovascular disease were investigated...
Conference Abstract

P8.6 PULSATILE COMPONENT OF CENTRAL BLOOD PRESSURE AND THE RISK OF STROKE IN CORONARY PATIENTS. RESULTS FROM THE AORTIC BLOOD PRESSURE AND SURVIVAL STUDY

Piotr Jankowski*, Agnieszka Bednarek, Malgorzata Kloch-Badelek, Magdalena Loster, Leszek Bryniarski, Kalina Kawecka-Jaszcz, Danuta Czarnecka
Pages: 35 - 35
Background: There is ongoing debate concerning the best blood pressure (BP) parameter predicting cardiovascular risk. The aim of the analysis was to investigate the relationship between central BP and stroke in patients undergoing coronary angiography. Methods: The study group consisted of 954 patients...
Conference Abstract

P8.5 MORNING CENTRAL BLOOD PRESSURE SURGE IS RELATED TO AGE

Agnieszka Bednarek*, Piotr Jankowski, Agnieszka Olszanecka, Adam Windak, Kalina Kawecka-Jaszcz, Danuta Czarnecka
Pages: 35 - 35
Objective: Morning surge of peripheral blood pressure (BP) is considered to be an independent risk factor for cardiovascular diseases. However, morning central blood pressure surge (MCBPS) has not been analyzed so far. Therefore, the aim of study was to evaluate the variables independently associated...
Conference Abstract

P8.3 RELATIONSHIP BETWEEN PULSE WAVE VELOCITY AND BIOPSY PROVEN RENAL MICROVASCULAR LESIONS

Rania Kheder-Elfekih*, Hela Jebali, Lamia Rais, Fatma Ben Moussa, Karim Zouaghi
Pages: 35 - 35
Aortic stiffness is associated to chronic kidney disease. Although it is well established that patients with chronic kidney disease have classical and non classical risk factors correlated to a high pulse wave velocity, there is no data on the deleterious effect of high pulse wave velocity on intra renal...
Conference Abstract

P8.2 ARTERIAL WAVE REFLECTIONS: LOOKING BEYOND THE FIRST HARMONIC AND PRESSURE INFLECTION POINTS TO ASSESS LATE-SYSTOLIC VENTRICULAR LOADING

Timothy Phan*, John Li, Zoubair Ahmed, Ejaz Shah, Vandan Panchal, Julio Chirinos
Pages: 35 - 35
Background: Late-systolic ventricular loading is associated with impaired relaxation and adverse remodeling. Standard indices of relative wave reflections such as augmentation index (AIx) and reflection magnitude (RM) from wave separation analysis blend different times within the cardiac cycle and are...

Empirical Study for Semantic Annotation of Web Services

Djelloul Bouchiha, Mimoun Malki, Djihad Djaa, Abdullah Alghamdi, Khalid Alnafjan
Pages: 35 - 44
Web services have become the main paradigm for the development of distributed software systems using a common set of technologies, including SOAP, WSDL and UDDI. This allows accessing to software components residing on different platforms and written in different programming languages. However, several...

Adaptive generalized ensemble construction with feature selection and its application in recommendation

Jin Tian, Nan Feng
Pages: 35 - 43
This paper presents an adaptive generalized ensemble method with refined feature selection strategy and self-adjusted mechanism for ensemble size. The coevolutionary algorithm is introduced to optimize the ensemble and the feature weighting. There are two stages in the proposed method. In the coevolutionary...